Death, Sudden, Cardiac
Cardiac Resynchronization Therapy
Prostheses and Implants
Cardiac Pacing, Artificial
Equipment Failure Analysis
Cardiac Resynchronization Therapy Devices
Infusion Pumps, Implantable
Electrophysiologic Techniques, Cardiac
Out-of-Hospital Cardiac Arrest
Ventricular Dysfunction, Left
Remote Sensing Technology
Arrhythmogenic Right Ventricular Dysplasia
Electric Power Supplies
Emergency Medical Services
Radio Frequency Identification Device
Equipment and Supplies
Electric Stimulation Therapy
Heart Conduction System
Proportional Hazards Models
Emergency Medical Tags
Predictive Value of Tests
Urinary Bladder, Overactive
Multicenter Studies as Topic
Randomized Controlled Trials as Topic
Ventricular Function, Left
Emergency Medical Technicians
Diagnostic Techniques, Cardiovascular
Sick Sinus Syndrome
Combined Modality Therapy
Signal Processing, Computer-Assisted
Practice Guidelines as Topic
Cause of Death
Sensitivity and Specificity
Quality of Life
Manifest Anxiety Scale
Long QT Syndrome
Evaluation Studies as Topic
Accelerated Idioventricular Rhythm
American Heart Association
Body Surface Potential Mapping
Reproducibility of Results
Catheterization, Central Venous
Product Surveillance, Postmarketing
Differential effects of defibrillation on systemic and cardiac sympathetic activity. (1/1845)OBJECTIVE: To assess the effect of defibrillation shocks on cardiac and circulating catecholamines. DESIGN: Prospective examination of myocardial catecholamine balance during dc shock by simultaneous determination of arterial and coronary sinus plasma concentrations. Internal countershocks (10-34 J) were applied in 30 patients after initiation of ventricular fibrillation for a routine implantable cardioverter defibrillator test. Another 10 patients were externally cardioverted (50-360 J) for atrial fibrillation. MAIN OUTCOME MEASURES: Transcardiac noradrenaline, adrenaline, and lactate gradients immediately after the shock. RESULTS: After internal shock, arterial noradrenaline increased from a mean (SD) of 263 (128) pg/ml at baseline to 370 (148) pg/ml (p = 0.001), while coronary sinus noradrenaline fell from 448 (292) to 363 (216) pg/ml (p = 0.01), reflecting a shift from cardiac net release to net uptake. After external shock delivery, there was a similar increase in arterial noradrenaline, from 260 (112) to 459 (200) pg/ml (p = 0.03), while coronary sinus noradrenaline remained unchanged. Systemic adrenaline increased 11-fold after external shock (p = 0.01), outlasting the threefold rise following internal shock (p = 0.001). In both groups, a negative transmyocardial adrenaline gradient at baseline decreased further, indicating enhanced myocardial uptake. Cardiac lactate production occurred after ventricular fibrillation and internal shock, but not after external cardioversion, so the neurohumoral changes resulted from the defibrillation process and not from alterations in oxidative metabolism. CONCLUSIONS: A dc shock induces marked systemic sympathoadrenal and sympathoneuronal activation, but attenuates cardiac sympathetic activity. This might promote the transient myocardial depression observed after electrical discharge to the heart. (+info)
Mechanisms of death in the CABG Patch trial: a randomized trial of implantable cardiac defibrillator prophylaxis in patients at high risk of death after coronary artery bypass graft surgery. (2/1845)BACKGROUND: The CABG Patch trial compared prophylactic implantable cardiac-defibrillator (ICD) implantation with no antiarrhythmic therapy in coronary bypass surgery patients who had a left ventricular ejection fraction <0.36 and an abnormal signal-averaged ECG. There were 102 deaths among the 446 ICD group patients and 96 deaths among the 454 control group patients, a hazard ratio of 1.07 (P=0.63). The mechanisms of death were classified, and hypotheses were tested about the effects of ICD therapy on arrhythmic and nonarrhythmic cardiac deaths in the CABG Patch Trial and the Multicenter Automatic Defibrillator Implantation Trial (MADIT). METHODS AND RESULTS: The 198 deaths in the trial were reviewed by an independent Events Committee and classified by the method of Hinkle and Thaler. Only 54 deaths (27%) occurred out of hospital; 145 deaths (73%) were witnessed. Seventy-nine (82%) of the 96 deaths in the control group and 76 (75%) of the 102 deaths in the ICD group were due to cardiac causes. Cumulative arrhythmic mortality at 42 months was 6.9% in the control group and 4.0% in the ICD group (P=0. 057). Cumulative nonarrhythmic cardiac mortality at 42 months was 12. 4% in the control group and 13.0% in the ICD group (P=0.275). Death due to pump failure was significantly associated with death >1 hour from the onset of symptoms, dyspnea within 7 days of death, and overt heart failure within 7 days of death. CONCLUSIONS: In the CABG Patch Trial, ICD therapy reduced arrhythmic death 45% without significant effect on nonarrhythmic deaths. Because 71% of the deaths were nonarrhythmic, total mortality was not significantly reduced. (+info)
Atrial fibrillation detection and R-wave synchronization by Metrix implantable atrial defibrillator: implications for long-term efficacy and safety. The Metrix Investigators. (3/1845)BACKGROUND: The long-term efficacy of atrial fibrillation (AF) detection and R-wave synchronization are critical safety requirements for the development of an implantable atrial defibrillator (IAD) for treatment of AF. METHODS AND RESULTS: The long-term efficacy of the Metrix IAD for AF detection and R-wave synchronization was tested in 51 patients. The mean duration of follow-up was 259+/-138 days (72 to 613 days). AF detection tests were performed 2240 times during observed operation with 100% specificity and 92.3% sensitivity for differentiation between sinus rhythm and AF; 2219 episodes and their electrograms stored in the device during AF detection were analyzed. The positive predictive value of the AF detection algorithm was 97.4% (lower 95% confidence limit [CL], 94.5%) in the out-of-hospital setting. A total of 242 435 R waves were analyzed for R-wave synchronization. Of these, 49% were marked for synchronized shock delivery, 82% of sinus rhythm and 36% of AF R waves, respectively. All shock markers were properly synchronized and within the R wave (overall synchronization accuracy, 100%; lower 95% CL, 99.999%). Overall, 3719 shocks have been delivered via the IAD with no instance of unsynchronized shock delivery or any episode of proarrhythmia. The observed proarrhythmic risk was 0%, with an estimated maximum proarrhythmic risk of 0.084% per shock (95% upper CL). CONCLUSIONS: The Metrix IAD can appropriately detect AF with a high specificity and sensitivity and reliably synchronize within a suitable R wave for shock delivery to minimize the risk of ventricular proarrhythmia. (+info)
Effect of biphasic shock duration on defibrillation threshold with different electrode configurations and phase 2 capacitances: prediction by upper-limit-of-vulnerability determination. (4/1845)BACKGROUND: The defibrillation threshold (DFT) may be affected by biphasic shock duration (BSD), electrode configuration, and capacitance. The upper limit of vulnerability (ULV) may be used to estimate the DFT. For different lead configurations and phase 2 capacitances, we investigated in 18 pigs whether the use of ULV may predict waveforms with lowest DFT. METHODS AND RESULTS: -DFT and ULV were determined by up-down protocols for 10 BSDs. ULVs were measured by T-wave scanning during ventricular pacing (cycle length 500 ms). In protocol 1 (n=6), a pectoral "active can" was combined with an electrode in the superior vena cava as common cathode and a right ventricle electrode as anode (AC+SVC). In protocol 2 and protocol 3 (n=6 each), only the "active can" was used as proximal electrode (AC). Capacitance was 150 microF during both phases in protocol 1 and protocol 3 but 150 microF (phase 1) and 300 microF (phase 2) in protocol 2. ULV and DFT demonstrated a linear correlation in each protocol (r=0.78 to 0.84). Lowest DFTs were found at 10 ms for AC+SVC and at 14 ms for AC (P<0.001). At optimal BSDs, voltage DFTs did not differ significantly between AC (527+/-57 V) and AC+SVC (520+/-70 V). Switching capacitors for phase 2 in a way that reduced leading-edge voltage by 50% while doubling capacity did not change BSD for optimal voltage DFT but increased minimum DFT from 527+/-57 V to 653+/-133 V (P=0.04). CONCLUSIONS: The BSD with lowest DFT is shorter for AC+SVC than for AC. There is no significant difference in voltage DFT between both at optimal BSD. A lower phase 2 capacitance reduces DFTs irrespective of BSD. Because strength-duration curves for DFT and ULV correlate for different BSDs, lead systems, and phase 2 capacitances, ULV determination may allow the prediction of waveforms with lowest DFT. (+info)
Design and results of the antiarrhythmics vs implantable defibrillators (AVID) registry. The AVID Investigators. (5/1845)BACKGROUND: The Antiarrhythmics Versus Implantable Defibrillators (AVID) Study compared treatment with implantable cardioverter-defibrillators versus antiarrhythmic drugs in patients with life-threatening ventricular arrhythmias (VAs). AVID maintained a Registry on all patients, randomized or not, with any VA or unexplained syncope who could be considered for either of the treatment strategies. Trial-eligible arrhythmias were the categories of VF cardiac arrest, Syncopal VT, and Symptomatic VT, below. METHODS AND RESULTS: Of 5989 patients screened, 4595 were registered and 1016 were randomized. Mortality follow-up through 1996 was obtained on the 4219 Registry patients enrolled before 1997 through the National Death Index. Crude mortality rates (mean+/-SD, follow-up, 16.9+/-11.5 months) were: VF cardiac arrest, 17.0% (n=1399, 238 deaths); Syncopal VT, 21.2% (n=598, 127 deaths); Symptomatic VT, 15.8% (n=1065, 168 deaths); Stable (asymptomatic) VT, 19.7% (n=497, 98 deaths); VT/VF with transient/correctable cause, 17.8% (n=270, 48 deaths); and Unexplained syncope, 12.3% (n=390, 48 deaths). CONCLUSIONS: Patients with seemingly lower-risk or unknown-risk VAs (asymptomatic VT, and VT/VF associated with a transient factor) have a (high) mortality similar to that of higher-risk, AVID-eligible VAs. The similar (and poor) prognosis of most patients with VT/VF suggests the need for reevaluation of a priori risk grouping and raises the question of the appropriate arrhythmia therapy for a broad range of patients. (+info)
The circadian pattern of the development of ventricular fibrillation in patients with Brugada syndrome. (6/1845)AIMS: Brugada syndrome is considered to be a distinctive subgroup of idiopathic ventricular fibrillation. Identification of the circadian pattern of ventricular fibrillation would contribute to the elucidation of its underlying pathophysiology, but this pattern remains unknown in patients with Brugada syndrome. METHODS: and Results A total of 12 consecutive Brugada syndrome patients (46+/-14 years, all male) who underwent implantation of an implantable cardioverter defibrillator were studied. The distribution of the time of ventricular fibrillation detection was examined and classified into four 6-hour time periods of the day. The mean follow-up period following implantation was 777+/-535 days. In six out of the 12 patients, ventricular fibrillation occurred during follow-up. The data logs revealed that ventricular fibrillation was detected 30 times (range, 3-9). Ventricular fibrillation was observed more frequently at night ( 1800 h to 0600 h) than in the day (0600 h to 1800 h) (93.3% [28/30] vs 6.7%[2/30], P<0.001), and during sleep than while awake (86.7% [26/30] vs 13.3%[4/30], P<0.001). Ventricular fibrillation occurred most frequently between midnight and 0600 h in patients with ventricular fibrillation episodes during sleep (76.9% [20/26] vs 23.1%[6/26], P<0.01). CONCLUSION: These results suggest that increased nocturnal vagal activity and withdrawal sympathetic activity may play an important role in the arrhythmogenesis of the Brugada syndrome. (+info)
Inappropriate shocks delivered by implantable cardiac defibrillators during oversensing of activity of diaphagmatic muscle. (7/1845)Two cases are reported (both men, one 72 and one 54 years old) of inappropriate shocks delivered by an implantable cardiac defibrillator (ICD) device, which oversensed the myopotentials induced by deep breathing and Valsalva manoeuvre. No damage to leads was associated with the oversensing of myopotentials. The mechanism of the inappropriate shocks was determined using real time electrograms. Modification of the duration of ventricular detection and decrease in sensitivity made it possible to avoid the oversensing of myopotentials and to deliver ICD treatment. (+info)
Survival after cardiac arrest or sustained ventricular tachycardia in patients with hypertrophic cardiomyopathy. (8/1845)OBJECTIVES: The aim of this study was to evaluate the survival of patients with hypertrophic cardiomyopathy (HCM) after resuscitated ventricular fibrillation or syncopal sustained ventricular tachycardia (VT/VF) when treated with low dose amiodarone or implantable cardioverter defibrillators (ICDs). BACKGROUND: Prospective data on clinical outcome in patients with HCM who survive a cardiac arrest are limited, but studies conducted before the widespread use of amiodarone and/or ICD therapy suggest that over a third die within seven years from sudden cardiac death or progressive heart failure. METHODS: Sixteen HCM patients with a history of VT/VF (nine male, age at VT/VF 19 +/- 8 years [range 10 to 36]) were studied. Syncopal sustained ventricular tachycardia/ventricular fibrillation occurred during or immediately after exertion in eight patients and was the initial presentation in eight. One patient had disabling neurologic deficit after VT/VF. Before VT/VF, two patients had angina, four had syncope and six had a family history of premature sudden cardiac death. After VT/VF all patients were in New York Heart Association class I or II, three had nonsustained VT during ambulatory electrocardiography and 11 had an abnormal exercise blood pressure response. After VT/VF eight patients were treated with low dose amiodarone and six received an ICD. Prophylactic therapy was declined by two patients. RESULTS: Mean follow-up was 6.1 +/- 4.0 years (range 0.5 to 14.5). Cumulative survival (death or ICD discharge) for the entire cohort was 59% at five years (95% confidence interval: 33% to 84%). Thirteen (81%) patients were alive at last follow-up. Two patients died suddenly while taking low dose amiodarone, and one died due to neurologic complications of his initial cardiac arrest. Three patients had one or more appropriate ICD discharges during follow-up; the times to first shock after ICD implantation were 23, 197 and 1,124 days. CONCLUSIONS: This study shows that patients with HCM who survive an episode of VT/VF remain at risk for a recurrent event. Implantable cardioverter defibrillator therapy appears to offer the best potential benefit regarding outcome. (+info)
Defibrillators, Implantable are medical devices that are used to treat life-threatening arrhythmias, such as ventricular fibrillation and pulseless ventricular tachycardia. These devices are implanted in the body, usually in the chest, and are designed to detect when the heart is in a dangerous rhythm and deliver an electrical shock to restore a normal heartbeat. Implantable defibrillators are typically used in patients who have a history of life-threatening arrhythmias or who are at high risk of developing them. They are also used in patients who have had a heart attack or who have undergone certain types of heart surgery. There are two main types of implantable defibrillators: single-chamber and dual-chamber. Single-chamber devices are used to treat arrhythmias that affect only one chamber of the heart, while dual-chamber devices are used to treat arrhythmias that affect both chambers of the heart. Implantable defibrillators are typically programmed to deliver a shock if the heart's electrical activity becomes too fast or too slow. They can also be programmed to monitor the heart's rhythm and deliver a shock if necessary. Some implantable defibrillators also have the ability to monitor other vital signs, such as blood pressure and oxygen levels. Implantable defibrillators are typically implanted by a cardiologist or cardiac surgeon and require regular follow-up care to ensure that they are functioning properly. They are generally considered to be very effective at treating life-threatening arrhythmias and can help to improve the quality of life for patients who have them.
Defibrillators are medical devices used to treat life-threatening cardiac arrhythmias, such as ventricular fibrillation (VF) and pulseless ventricular tachycardia (VT). These arrhythmias occur when the heart's electrical system malfunctions, causing the heart to beat irregularly and potentially leading to cardiac arrest. Defibrillators work by delivering an electrical shock to the heart to restore its normal rhythm. The device detects the heart's electrical activity and determines whether a shock is necessary. If a shock is needed, the defibrillator delivers an electrical current to the heart through paddles placed on the chest. The shock disrupts the abnormal electrical activity and allows the heart to resume a normal rhythm. Defibrillators are commonly used in emergency medical settings, such as hospitals and ambulances, but they can also be used by trained individuals in public places, such as airports and sports arenas. In some cases, automated external defibrillators (AEDs) are available for use by the general public, and they are designed to be easy to use and operate.
Tachycardia, ventricular refers to an abnormally fast heart rate that originates from the ventricles, which are the lower chambers of the heart. This type of tachycardia is also known as ventricular tachycardia (VT) and can be a serious medical condition that requires prompt medical attention. Ventricular tachycardia can be caused by a variety of factors, including heart disease, electrolyte imbalances, and certain medications. It can also be a complication of other medical conditions, such as heart attacks, heart failure, and myocarditis. The symptoms of ventricular tachycardia can vary depending on the severity and duration of the episode. Common symptoms include palpitations, shortness of breath, dizziness, and fainting. In some cases, ventricular tachycardia can lead to more serious complications, such as cardiac arrest, which can be life-threatening. Treatment for ventricular tachycardia typically involves medications to slow down the heart rate and restore a normal rhythm. In some cases, electrical cardioversion or catheter ablation may be necessary to eliminate the abnormal heart rhythm. It is important to seek medical attention immediately if you suspect you or someone else may be experiencing ventricular tachycardia.
Ventricular fibrillation (VF) is a type of abnormal heart rhythm that occurs when the lower chambers of the heart (ventricles) quiver instead of contracting normally. This quivering causes the heart to be unable to pump blood effectively, leading to a lack of oxygen to the body's vital organs and potentially causing sudden cardiac arrest. VF is a medical emergency that requires immediate treatment with defibrillation, a procedure that uses an electric shock to restore the heart's normal rhythm. Without prompt treatment, VF can be fatal.
In the medical field, "Death, Sudden, Cardiac" refers to a sudden and unexpected death that is caused by a problem with the heart. This type of death is often referred to as sudden cardiac death (SCD) and can occur in people of all ages, including children and young adults. SCD is typically caused by an arrhythmia, which is an abnormal heartbeat that can disrupt the flow of blood to the brain and other vital organs. Other factors that can contribute to SCD include coronary artery disease, heart failure, and inherited heart conditions. Symptoms of SCD may include sudden collapse, loss of consciousness, and difficulty breathing. Treatment for SCD typically involves cardiopulmonary resuscitation (CPR) and the use of a defibrillator to shock the heart back into a normal rhythm. However, because SCD is sudden and often fatal, prevention is key, and people who are at risk may be prescribed medications or undergo procedures to reduce their risk of experiencing a cardiac event.
Arrhythmias, cardiac refer to abnormal heart rhythms that are not synchronized with the electrical signals that control the heartbeat. These abnormal rhythms can be caused by a variety of factors, including structural abnormalities of the heart, damage to the heart muscle, or problems with the electrical conduction system of the heart. Arrhythmias can range from relatively harmless to life-threatening. Some common types of cardiac arrhythmias include atrial fibrillation, ventricular tachycardia, and atrial flutter. Symptoms of arrhythmias may include palpitations, shortness of breath, dizziness, or fainting. Treatment for arrhythmias may involve medications, lifestyle changes, or medical procedures such as catheter ablation or implantation of a pacemaker or defibrillator.
Heart arrest is a medical emergency that occurs when the heart stops beating effectively, resulting in a lack of blood flow to the body's vital organs. This can happen suddenly or gradually, and it can be caused by a variety of factors, including heart disease, electrical abnormalities in the heart, trauma, or certain medications. In heart arrest, the heart's electrical activity is disrupted, and the heart muscle is unable to contract and pump blood. This can lead to a loss of consciousness, respiratory arrest, and death if not treated promptly. Treatment for heart arrest typically involves cardiopulmonary resuscitation (CPR), which involves chest compressions and rescue breathing to try to restore blood flow to the body and the heart. In some cases, defibrillation may also be necessary to shock the heart back into a normal rhythm. If the heart arrest is caused by an underlying medical condition, such as a heart attack or arrhythmia, additional treatment may be required to address the underlying cause.
Electric injuries refer to injuries caused by an electrical current passing through the body. These injuries can occur when a person comes into contact with an electrical source, such as a live wire or a faulty appliance, and the current flows through their body. The severity of the injury depends on various factors, including the voltage of the current, the duration of exposure, and the path the current takes through the body. Electric injuries can cause a range of symptoms, including burns, muscle spasms, cardiac arrest, and respiratory failure. In severe cases, electric injuries can be life-threatening and require immediate medical attention. Treatment for electric injuries typically involves stabilizing the patient's vital signs, removing any foreign objects from the body, and administering medications to manage pain and prevent infection. In some cases, surgery may be necessary to repair damaged tissues or organs.
Anti-arrhythmia agents, also known as anti-arrhythmic drugs, are medications that are used to treat abnormal heart rhythms, or arrhythmias. These medications work by affecting the electrical activity of the heart, either by slowing down or speeding up the heart rate, or by stabilizing the heart's rhythm. There are several different types of anti-arrhythmia agents, including class I, II, III, and IV drugs. Each class of drug works in a different way to affect the heart's electrical activity, and the choice of medication will depend on the specific type and severity of the arrhythmia being treated. Some common examples of anti-arrhythmia agents include beta blockers, calcium channel blockers, and sodium channel blockers. These medications can be used to treat a wide range of arrhythmias, including atrial fibrillation, ventricular tachycardia, and supraventricular tachycardia. It is important to note that anti-arrhythmia agents can have side effects, and their use should be closely monitored by a healthcare provider. In some cases, alternative treatments, such as electrical cardioversion or catheter ablation, may be necessary.
Cardiac Resynchronization Therapy (CRT) is a treatment for heart failure that involves the use of a special type of pacemaker called a biventricular pacemaker or a cardiac resynchronization device. The device is implanted in the chest and is connected to two leads that are placed in the heart. The device is programmed to send electrical signals to both ventricles of the heart at the same time, which helps to coordinate their contractions and improve the pumping of blood throughout the body. CRT can help to improve symptoms of heart failure, such as shortness of breath and fatigue, and may also reduce the risk of hospitalization and death in some patients.
Amiodarone is a medication that is used to treat a variety of heart rhythm disorders, including atrial fibrillation, ventricular tachycardia, and ventricular fibrillation. It is a type of antiarrhythmic drug that works by slowing down the electrical activity in the heart and allowing it to beat more regularly. Amiodarone is available in both oral and intravenous forms and is typically used as a long-term treatment for heart rhythm disorders. It is also sometimes used to treat other conditions, such as thyrotoxicosis (overactive thyroid) and pneumonia. However, amiodarone can have serious side effects, including lung problems, liver damage, and thyroid disorders, and it should only be used under the supervision of a healthcare professional.
Cardiac pacing, artificial refers to the medical procedure of implanting a device called a pacemaker into a patient's chest to regulate the heartbeat. The pacemaker is a small electronic device that sends electrical signals to the heart to prompt it to beat at a normal rate. The pacemaker is typically implanted under local anesthesia and can be done on an outpatient basis. The device is connected to the heart through wires called leads, which are placed in the heart's chambers. The pacemaker is then programmed to send electrical signals to the heart at specific intervals to ensure that the heart beats at a normal rate. Artificial cardiac pacing is commonly used to treat patients with bradycardia, a condition in which the heart beats too slowly. It can also be used to treat patients with certain heart conditions, such as heart failure, that cause the heart to beat irregularly. Artificial cardiac pacing can improve a patient's quality of life by reducing symptoms such as fatigue, dizziness, and shortness of breath.
Syncope is a medical condition characterized by a temporary loss of consciousness due to a lack of blood flow to the brain. It is also known as fainting or passing out. Syncope can be caused by a variety of factors, including low blood pressure, heart problems, anemia, dehydration, or certain medications. Symptoms of syncope may include dizziness, lightheadedness, weakness, and loss of consciousness. Treatment for syncope depends on the underlying cause and may include lifestyle changes, medications, or medical procedures.
Cardiopulmonary Resuscitation (CPR) is a life-saving technique used to restore breathing and circulation in a person who has stopped breathing or whose heart has stopped beating. CPR involves chest compressions to pump blood and artificial ventilation to provide oxygen to the lungs. The goal of CPR is to keep the brain and other vital organs alive until emergency medical services arrive and can provide further treatment, such as defibrillation or advanced life support. CPR is typically performed on an unconscious person who is not breathing or has a weak pulse, and it is most effective when performed immediately after the person stops breathing or their heart stops.
Heart failure, also known as congestive heart failure, is a medical condition in which the heart is unable to pump enough blood to meet the body's needs. This can lead to a buildup of fluid in the lungs, liver, and other organs, causing symptoms such as shortness of breath, fatigue, and swelling in the legs and ankles. Heart failure can be caused by a variety of factors, including damage to the heart muscle from a heart attack, high blood pressure, or long-term damage from conditions such as diabetes or coronary artery disease. It can also be caused by certain genetic disorders or infections. Treatment for heart failure typically involves medications to improve heart function and reduce fluid buildup, as well as lifestyle changes such as a healthy diet, regular exercise, and avoiding smoking and excessive alcohol consumption. In some cases, surgery or other medical procedures may be necessary to treat the underlying cause of the heart failure or to improve heart function.
Cardiac Resynchronization Therapy (CRT) devices are medical devices used to treat heart failure by synchronizing the contractions of the heart's ventricles. The heart has two main pumping chambers, the left and right ventricles, which work together to pump blood throughout the body. In heart failure, the ventricles do not contract in a coordinated manner, leading to inefficient pumping of blood and symptoms such as shortness of breath, fatigue, and swelling. CRT devices consist of a pacemaker-like device that is implanted in the chest, usually under the skin near the collarbone. The device has three leads, which are placed in the heart to deliver electrical impulses that synchronize the contractions of the ventricles. The device is programmed to deliver electrical impulses at specific times during the cardiac cycle, based on the patient's heart rate and rhythm. CRT devices are typically used in patients with advanced heart failure who have not responded to other treatments, such as medications or lifestyle changes. The therapy can improve symptoms, increase exercise tolerance, and reduce the risk of hospitalization and death. However, CRT devices are not suitable for all patients with heart failure and are typically recommended only after careful evaluation by a cardiologist.
Tachycardia is a medical condition characterized by an abnormally fast heart rate, typically defined as a resting heart rate of 100 beats per minute or higher. The normal resting heart rate for adults is generally considered to be between 60 and 100 beats per minute. Tachycardia can be classified into several types based on the underlying cause, including: 1. Sinus tachycardia: This is the most common type of tachycardia, and it occurs when the heart rate is faster than normal but still within a normal range for the individual's age, fitness level, and other factors. 2. Atrial fibrillation: This is a type of arrhythmia characterized by irregular and rapid heartbeats that originate in the atria (upper chambers) of the heart. 3. Ventricular tachycardia: This is a type of arrhythmia characterized by rapid and irregular heartbeats that originate in the ventricles (lower chambers) of the heart. Tachycardia can be caused by a variety of factors, including stress, anxiety, caffeine or other stimulants, dehydration, electrolyte imbalances, certain medications, and underlying medical conditions such as heart disease, thyroid disorders, or lung disease. Treatment for tachycardia depends on the underlying cause and may include medications, lifestyle changes, or medical procedures such as cardioversion or catheter ablation.
Out-of-hospital cardiac arrest (OHCA) is a medical emergency that occurs when a person's heart stops beating outside of a hospital or healthcare facility. This can happen suddenly and without warning, and it requires immediate medical attention to increase the chances of survival. During an OHCA, the heart is unable to pump blood to the body's vital organs, including the brain, which can lead to permanent brain damage or death if not treated promptly. The most common cause of OHCA is an electrical disturbance in the heart's rhythm, known as ventricular fibrillation (VF), which can cause the heart to quiver instead of pumping blood effectively. Treatment for OHCA typically involves the use of CPR (cardiopulmonary resuscitation) to manually pump blood to the body's vital organs, as well as the use of an automated external defibrillator (AED) to deliver an electric shock to the heart in an attempt to restore a normal heart rhythm. Emergency medical services (EMS) personnel are typically the first responders to OHCA and play a critical role in providing life-saving treatment until the patient can be transported to a hospital for further care.
Ventricular dysfunction, left, is a medical condition in which the left ventricle of the heart is unable to pump blood efficiently. The left ventricle is responsible for pumping oxygen-rich blood from the heart to the rest of the body. When it is not functioning properly, it can lead to a variety of symptoms, including shortness of breath, fatigue, and chest pain. There are several causes of left ventricular dysfunction, including heart attacks, high blood pressure, coronary artery disease, and heart valve problems. Treatment for left ventricular dysfunction depends on the underlying cause and may include medications, lifestyle changes, and in some cases, surgery. Left ventricular dysfunction can be a serious condition and requires prompt medical attention.
Brugada Syndrome is a rare genetic disorder that affects the heart's electrical system, leading to an increased risk of sudden cardiac death. It is characterized by a specific pattern on an electrocardiogram (ECG) called the "Brugada pattern," which is caused by abnormal electrical activity in the heart's right ventricle. People with Brugada Syndrome may experience symptoms such as palpitations, fainting, and shortness of breath, but many people with the condition have no symptoms at all. The condition is typically diagnosed in people who have a family history of sudden cardiac death or who experience unexplained fainting or palpitations. Treatment for Brugada Syndrome typically involves medications to control heart rate and rhythm, and in some cases, an implantable cardioverter-defibrillator (ICD) may be recommended to shock the heart back into a normal rhythm if it goes into a dangerous arrhythmia. In some cases, surgery may be necessary to correct structural abnormalities in the heart that may be contributing to the condition.
Cardiomyopathies are a group of heart diseases that affect the heart muscle (myocardium). These diseases can cause the heart to become enlarged, thickened, or rigid, which can lead to problems with the heart's ability to pump blood effectively. There are several different types of cardiomyopathies, including: 1. Hypertrophic cardiomyopathy: This is a condition in which the heart muscle becomes abnormally thick, which can make it difficult for the heart to pump blood. 2. Dilated cardiomyopathy: This is a condition in which the heart muscle becomes weakened and enlarged, which can cause the heart to pump blood less effectively. 3. Arrhythmogenic right ventricular cardiomyopathy (ARVC): This is a condition in which the heart muscle in the right ventricle becomes abnormal and can cause irregular heart rhythms. 4. Non-ischemic dilated cardiomyopathy: This is a type of dilated cardiomyopathy that is not caused by a lack of blood flow to the heart muscle. 5. Idiopathic left ventricular hypertrophy: This is a condition in which the left ventricle of the heart becomes abnormally thick, which can make it difficult for the heart to pump blood. Cardiomyopathies can be inherited or acquired, and they can range from mild to severe. Treatment for cardiomyopathies depends on the specific type and severity of the condition, and may include medications, lifestyle changes, and in some cases, surgery.
Tachycardia, supraventricular refers to a type of rapid heartbeat that originates from an area above the ventricles in the heart. The ventricles are the lower chambers of the heart that pump blood out to the rest of the body. Supraventricular tachycardia (SVT) can be caused by a variety of factors, including stress, anxiety, caffeine, alcohol, certain medications, and underlying medical conditions such as heart disease, thyroid disorders, and electrolyte imbalances. SVT can present with symptoms such as palpitations, rapid or irregular heartbeat, shortness of breath, dizziness, and fainting. Treatment options for SVT may include medications to slow the heart rate, cardioversion (a procedure that uses electrical shocks to restore a normal heart rhythm), or catheter ablation (a procedure that uses heat or cold to destroy the abnormal heart tissue causing the SVT).
In the medical field, "Death, Sudden" refers to an unexpected and rapid loss of life, typically occurring within minutes to hours of the onset of symptoms. Sudden death can be caused by a variety of factors, including heart attacks, strokes, sudden arrhythmias, severe allergic reactions, and other medical emergencies. It is often characterized by the absence of warning signs or symptoms, and can occur in both young and old individuals. Sudden death is a serious medical emergency that requires immediate attention and intervention to prevent further harm or loss of life.
Cardiac electrophysiology is a branch of medicine that deals with the study of the electrical activity of the heart. It involves the diagnosis and treatment of heart rhythm disorders, also known as arrhythmias, which can cause the heart to beat too fast, too slow, or irregularly. Cardiac electrophysiologists use specialized equipment to record and analyze the electrical signals that control the heartbeat, and they may perform procedures such as catheter ablation to correct abnormal heart rhythms. They also work closely with other cardiologists and cardiovascular surgeons to develop treatment plans for patients with heart disease.
Atrial fibrillation (AFib) is a type of arrhythmia, or abnormal heart rhythm, that occurs when the upper chambers of the heart (the atria) beat irregularly and rapidly, often out of sync with the lower chambers (the ventricles). This can cause the heart to pump inefficiently and can lead to blood clots, stroke, and other complications. AFib is a common condition, affecting an estimated 2.7 to 6.1 million people in the United States. It is more common in older adults and can be caused by a variety of factors, including high blood pressure, heart disease, and certain medical conditions. Treatment for AFib may include medications, lifestyle changes, and procedures to restore a normal heart rhythm.
Cardiography, Impedance is a medical imaging technique that uses electrical signals to create images of the heart. It is also known as impedance cardiography or bioimpedance cardiography. During an impedance cardiography test, electrodes are placed on the skin of the chest, arms, and legs. These electrodes send electrical signals through the body, which are then measured to determine the electrical impedance of the heart. The impedance of the heart changes as it contracts and relaxes, allowing the test to measure the volume of blood being pumped by the heart. The results of an impedance cardiography test can be used to diagnose a variety of heart conditions, including heart failure, valvular heart disease, and coronary artery disease. It can also be used to monitor the effectiveness of treatments for these conditions and to assess the overall function of the heart.
Dilated cardiomyopathy is a medical condition characterized by the enlargement and weakening of the heart muscle, specifically the ventricles, which are the lower chambers of the heart responsible for pumping blood out to the rest of the body. This enlargement causes the heart to become weakened and unable to pump blood efficiently, leading to symptoms such as shortness of breath, fatigue, and swelling in the legs and ankles. Dilated cardiomyopathy can be caused by a variety of factors, including genetics, infections, alcohol and drug abuse, and certain medications. It can also be a complication of other heart conditions, such as hypertension or coronary artery disease. Diagnosis of dilated cardiomyopathy typically involves a physical examination, electrocardiogram (ECG), echocardiogram, and other imaging tests. Treatment may include medications to improve heart function, lifestyle changes such as a heart-healthy diet and exercise, and in some cases, surgery or heart transplantation.
Arrhythmogenic Right Ventricular Dysplasia (ARVD) is a genetic heart disorder that affects the right ventricle of the heart. It is characterized by the replacement of healthy heart muscle with fibrous scar tissue, which can lead to abnormal heart rhythms and heart failure. ARVD is often diagnosed in young adults and children, and it can be life-threatening if not treated. The exact cause of ARVD is not fully understood, but it is believed to be related to mutations in certain genes that are involved in the development and maintenance of heart muscle. Treatment for ARVD typically involves medications to control abnormal heart rhythms and lifestyle changes to reduce the risk of sudden cardiac death. In some cases, surgery may be necessary to remove damaged heart muscle or implant a device to regulate the heart's rhythm.
Cost-benefit analysis (CBA) is a method used to evaluate the economic feasibility of a medical intervention or treatment. It involves comparing the costs of a particular treatment or intervention with the benefits it provides to patients, taking into account both the direct and indirect costs and benefits. In the medical field, CBA is often used to determine the most cost-effective treatment for a particular condition or disease. It can help healthcare providers and policymakers make informed decisions about resource allocation and prioritize treatments based on their cost-effectiveness. CBA typically involves the following steps: 1. Identifying the medical intervention or treatment being evaluated. 2. Estimating the costs associated with the intervention, including direct costs such as medical supplies and personnel time, as well as indirect costs such as lost productivity and quality of life. 3. Estimating the benefits of the intervention, including improvements in health outcomes, reduced morbidity and mortality, and increased quality of life. 4. Comparing the costs and benefits of the intervention to determine its cost-effectiveness. 5. Using the results of the CBA to inform decision-making about resource allocation and treatment prioritization. Overall, CBA can be a useful tool for healthcare providers and policymakers to make informed decisions about medical interventions and treatments, taking into account both the costs and benefits of each option.
Sotalol is a medication that is used to treat a variety of heart conditions, including arrhythmias (irregular heartbeats), hypertension (high blood pressure), and heart failure. It works by blocking the effects of certain chemicals in the heart that can cause the heart to beat too fast, too slow, or in an irregular rhythm. Sotalol is available in both oral and intravenous forms, and is typically prescribed by a healthcare provider to manage the symptoms of these conditions. It is important to follow the instructions of your healthcare provider carefully when taking sotalol, as it can have side effects and may interact with other medications you are taking.
Prosthesis-related infections (PRIs) are infections that occur in or around medical devices, such as artificial joints, heart valves, or pacemakers. These infections can be caused by bacteria, fungi, or viruses, and can be difficult to treat because the bacteria can become resistant to antibiotics. PRIs can lead to serious complications, including the need for surgery to remove the infected device, and can be life-threatening in some cases. It is important for patients who have medical devices to follow their healthcare provider's instructions for preventing infections and to seek medical attention immediately if they experience any signs or symptoms of infection.
In the medical field, "Burns, Electric" refers to a type of burn injury caused by electrical current. Electric burns can occur when a person comes into contact with an electrical source, such as a live wire or an electrical appliance, and the current flows through their body. The severity of an electric burn can vary depending on several factors, including the voltage of the electrical source, the duration of contact, and the path the current took through the body. Electric burns can cause tissue damage, burns to the skin and underlying tissues, and can also affect internal organs and the nervous system. Treatment for electric burns typically involves removing the person from the source of the electrical current and providing first aid to manage pain and prevent further injury. In more severe cases, medical professionals may need to perform surgery to repair damaged tissues and organs.
In the medical field, "Amplifiers, Electronic" typically refers to electronic devices that are used to amplify or increase the strength of a weak electrical signal. These amplifiers are commonly used in medical equipment such as electrocardiographs (ECGs), electroencephalographs (EEGs), and nerve conduction studies (NCSs) to detect and measure electrical signals produced by the body. Electronic amplifiers used in medical equipment are designed to have high input impedance, low output impedance, and a wide frequency range to accurately amplify the weak electrical signals produced by the body. They are also designed to have low noise and distortion to ensure accurate and reliable measurements. Amplifiers used in medical equipment are typically calibrated and tested to ensure that they provide accurate and reliable results. They may also be equipped with features such as filtering, gain control, and signal processing to enhance the quality of the signals being measured.
Tachycardia, sinus refers to an abnormally fast heart rate that originates from the sinoatrial (SA) node, which is the natural pacemaker of the heart. The SA node is located in the right atrium of the heart and sends electrical signals to the atria to contract and pump blood into the ventricles. Sinus tachycardia is a common type of tachycardia that can occur in healthy individuals during physical activity, stress, or anxiety. It can also be a sign of an underlying medical condition, such as fever, dehydration, heart disease, or thyroid disorders. In some cases, sinus tachycardia may require medical treatment, such as medication or lifestyle changes, to manage symptoms or underlying conditions. However, in many cases, it can be managed with observation and lifestyle modifications alone.
In the medical field, recurrence refers to the reappearance of a disease or condition after it has been treated or has gone into remission. Recurrence can occur in various medical conditions, including cancer, infections, and autoimmune diseases. For example, in cancer, recurrence means that the cancer has come back after it has been treated with surgery, chemotherapy, radiation therapy, or other treatments. Recurrence can occur months, years, or even decades after the initial treatment. In infections, recurrence means that the infection has returned after it has been treated with antibiotics or other medications. Recurrence can occur due to incomplete treatment, antibiotic resistance, or other factors. In autoimmune diseases, recurrence means that the symptoms of the disease return after they have been controlled with medication. Recurrence can occur due to changes in the immune system or other factors. Overall, recurrence is a significant concern for patients and healthcare providers, as it can require additional treatment and can impact the patient's quality of life.
Ventricular dysfunction is a medical condition in which the heart's ventricles, the lower chambers responsible for pumping blood out of the heart, are unable to function properly. This can result in a decrease in the amount of blood that is pumped out of the heart with each beat, leading to symptoms such as shortness of breath, fatigue, and swelling in the legs and ankles. There are several types of ventricular dysfunction, including systolic dysfunction, which occurs when the ventricles are unable to contract effectively, and diastolic dysfunction, which occurs when the ventricles are unable to relax and fill with blood properly. Ventricular dysfunction can be caused by a variety of factors, including heart disease, heart attack, high blood pressure, and certain genetic conditions. Treatment for ventricular dysfunction typically involves medications to improve heart function and lifestyle changes such as a healthy diet and regular exercise. In severe cases, surgery may be necessary.
A Bundle-Branch Block (BBB) is a type of heart rhythm disorder that occurs when there is a disruption in the electrical signals that control the contraction of the heart muscle. The heart has two main electrical pathways, called the right and left bundle branches, which carry electrical signals from the sinoatrial node (the heart's natural pacemaker) to the ventricles (the lower chambers of the heart) and cause them to contract and pump blood. A Bundle-Branch Block occurs when there is a delay or blockage in the electrical signals that travel through the bundle branches, causing the ventricles to contract asynchronously or with an abnormal rhythm. This can lead to a variety of symptoms, including palpitations, shortness of breath, dizziness, and fainting. There are two main types of Bundle-Branch Block: Right Bundle-Branch Block (RBBB) and Left Bundle-Branch Block (LBBB). RBBB is more common and usually has no symptoms, while LBBB is less common and can cause more serious symptoms, such as fainting or heart failure. Treatment for Bundle-Branch Block depends on the underlying cause and the severity of the symptoms. In some cases, no treatment may be necessary, while in others, medications or electrical cardioversion may be used to restore a normal heart rhythm. In severe cases, surgery may be necessary to correct the blockage.
Adrenergic beta-antagonists are a class of drugs that block the action of adrenaline (epinephrine) and noradrenaline (norepinephrine) on beta-adrenergic receptors in the body. These receptors are found in various organs and tissues, including the heart, lungs, and blood vessels. When adrenaline and noradrenaline bind to beta-adrenergic receptors, they cause a number of physiological responses, such as increased heart rate, blood pressure, and bronchodilation. Adrenergic beta-antagonists work by blocking these receptors, thereby reducing the effects of adrenaline and noradrenaline. Adrenergic beta-antagonists are used to treat a variety of medical conditions, including high blood pressure, angina pectoris (chest pain), heart failure, and arrhythmias. They are also used to prevent migraines and to treat anxiety and panic disorders. Some common examples of adrenergic beta-antagonists include propranolol, atenolol, and metoprolol.
Hypertrophic cardiomyopathy (HCM) is a type of heart disease characterized by the thickening of the heart muscle, particularly the walls of the left ventricle. This thickening can obstruct blood flow through the heart, leading to symptoms such as shortness of breath, chest pain, and fatigue. HCM can be caused by genetic mutations or be acquired as a result of other medical conditions or environmental factors. It is a common condition, affecting an estimated 1 in 500 people worldwide. Treatment for HCM may include medications, lifestyle changes, and in some cases, surgery or other procedures to improve blood flow and reduce the risk of complications.
Heart diseases refer to a group of medical conditions that affect the heart and blood vessels. These conditions can range from minor to severe and can affect the heart's ability to pump blood effectively, leading to a variety of symptoms and complications. Some common types of heart diseases include: 1. Coronary artery disease: This is the most common type of heart disease, which occurs when the arteries that supply blood to the heart become narrowed or blocked due to the buildup of plaque. 2. Heart failure: This occurs when the heart is unable to pump enough blood to meet the body's needs. 3. Arrhythmias: These are abnormal heart rhythms that can cause the heart to beat too fast, too slow, or irregularly. 4. Valvular heart disease: This occurs when the heart valves become damaged or diseased, leading to problems with blood flow. 5. Congenital heart disease: This refers to heart defects that are present at birth. 6. Inflammatory heart disease: This includes conditions such as pericarditis and myocarditis, which cause inflammation of the heart. 7. Heart infections: These include conditions such as endocarditis and myocarditis, which can cause damage to the heart muscle and valves. Treatment for heart diseases depends on the specific condition and may include medications, lifestyle changes, and in some cases, surgery. Early detection and treatment are important for improving outcomes and reducing the risk of complications.
In the medical field, a cicatrix is a scar that forms after the healing of a wound or injury. It is typically a raised, thickened area of skin that is usually pale or lighter in color than the surrounding skin. Cicatrices can be caused by a variety of factors, including surgery, burns, acne, and skin infections. They can range in size and appearance, and may be permanent or fade over time. In some cases, cicatrices may cause discomfort or interfere with the function of the affected area. Treatment options for cicatrices may include topical creams, laser therapy, or surgical procedures.
In the medical field, the term "aircraft" typically refers to any type of vehicle that is designed to fly through the air, such as airplanes, helicopters, and drones. These vehicles are often used in medical emergencies to transport patients quickly and safely to a medical facility, or to provide medical care and treatment to patients in remote or hard-to-reach areas. In some cases, aircraft may also be used to transport medical supplies and equipment to areas where they are needed.
Catheter ablation is a minimally invasive medical procedure used to treat certain types of heart rhythm disorders, such as atrial fibrillation (AFib) and ventricular tachycardia (VT). It involves using a thin, flexible tube called a catheter to deliver energy to specific areas of the heart tissue, causing it to become scarred and no longer able to generate abnormal electrical signals that can cause arrhythmias. During the procedure, the catheter is inserted into a blood vessel in the groin or wrist and guided to the heart using X-ray imaging. Once the catheter is in place, it is navigated to the area of the heart that is causing the arrhythmia. Energy is then delivered to the tissue through the catheter, causing it to become scarred and no longer able to generate abnormal electrical signals. Catheter ablation is generally considered a safe and effective treatment for certain types of heart rhythm disorders. It can be performed on an outpatient basis and has a high success rate in eliminating or reducing the frequency of arrhythmias. However, like any medical procedure, it carries some risks, including bleeding, infection, and damage to nearby blood vessels or organs.
Myocardial ischemia is a medical condition that occurs when the blood flow to the heart muscle is reduced or blocked, leading to a lack of oxygen and nutrients to the heart cells. This can cause chest pain or discomfort, shortness of breath, and other symptoms. Myocardial ischemia is often caused by atherosclerosis, a condition in which plaque builds up in the arteries, narrowing or blocking the flow of blood. It can also be caused by other factors, such as heart valve problems or blood clots. Myocardial ischemia can be a serious condition and requires prompt medical attention to prevent heart attack or other complications.
Prosthesis failure refers to the malfunction or breakdown of a medical device or implant, such as a prosthetic limb, heart valve, or joint replacement, that is intended to replace or support a missing or damaged body part. Prosthesis failure can occur due to a variety of factors, including design flaws, manufacturing defects, inappropriate use or care, or the natural wear and tear of the device over time. Symptoms of prosthesis failure may include pain, swelling, infection, movement restrictions, or the device becoming loose or dislodged. Treatment for prosthesis failure may involve repairing or replacing the device, adjusting the device's fit or function, or administering medications or other therapies to manage symptoms or complications.
Catheters, indwelling are medical devices that are inserted into a patient's body to allow for the passage of fluids or medication. They are typically used for long-term use, such as for the management of chronic conditions or for the administration of medications on a regular basis. Indwelling catheters can be inserted into various parts of the body, including the bladder, the heart, and the veins. They are typically made of flexible materials such as silicone or rubber and are attached to a collection bag or a pump for the delivery of fluids or medication. It is important to note that indwelling catheters can increase the risk of infection and other complications, and proper care and maintenance are necessary to minimize these risks.
The axillary vein is a large vein located in the axilla (armpit) region of the body. It is responsible for carrying deoxygenated blood from the upper limb back to the heart. The axillary vein is formed by the fusion of the subscapular vein and the cephalic vein, and it runs along the lateral aspect of the arm, beneath the deltoid muscle, and enters the axillary region through the axillary canal. The axillary vein is an important landmark for many medical procedures, including venipuncture and central venous catheterization.
Myocardial infarction (MI), also known as a heart attack, is a medical condition that occurs when blood flow to a part of the heart muscle is blocked, usually by a blood clot. This lack of blood flow can cause damage to the heart muscle, which can lead to serious complications and even death if not treated promptly. The most common cause of a heart attack is atherosclerosis, a condition in which plaque builds up in the arteries that supply blood to the heart. When a plaque ruptures or becomes unstable, it can form a blood clot that blocks the flow of blood to the heart muscle. Other causes of heart attacks include coronary artery spasms, blood clots that travel to the heart from other parts of the body, and certain medical conditions such as Kawasaki disease. Symptoms of a heart attack may include chest pain or discomfort, shortness of breath, nausea or vomiting, lightheadedness or dizziness, and pain or discomfort in the arms, back, neck, jaw, or stomach. If you suspect that you or someone else is having a heart attack, it is important to call emergency services immediately. Early treatment with medications and possibly surgery can help to reduce the risk of serious complications and improve the chances of a full recovery.
Commotio cordis is a medical condition that occurs when a person's heart is struck by a forceful blow, such as a punch or a fall. This can cause the heart to stop beating, leading to sudden cardiac arrest. Commotio cordis is a rare but potentially life-threatening condition, and it can happen to anyone, regardless of age or physical fitness. Treatment for commotio cordis typically involves cardiopulmonary resuscitation (CPR) and the use of a defibrillator to shock the heart back into a normal rhythm.
In the medical field, algorithms are a set of step-by-step instructions used to diagnose or treat a medical condition. These algorithms are designed to provide healthcare professionals with a standardized approach to patient care, ensuring that patients receive consistent and evidence-based treatment. Medical algorithms can be used for a variety of purposes, including diagnosing diseases, determining the appropriate course of treatment, and predicting patient outcomes. They are often based on clinical guidelines and best practices, and are continually updated as new research and evidence becomes available. Examples of medical algorithms include diagnostic algorithms for conditions such as pneumonia, heart attack, and cancer, as well as treatment algorithms for conditions such as diabetes, hypertension, and asthma. These algorithms can help healthcare professionals make more informed decisions about patient care, improve patient outcomes, and reduce the risk of medical errors.
Urinary Bladder, Overactive, also known as Overactive Bladder (OAB), is a medical condition characterized by the involuntary contractions of the muscles of the urinary bladder, leading to frequent and urgent urination, often accompanied by a strong and sudden urge to urinate. This can result in leakage of urine, which can be embarrassing and affect a person's quality of life. OAB can be caused by a variety of factors, including age, genetics, certain medical conditions, and lifestyle factors such as smoking and alcohol consumption. It is a common condition, affecting millions of people worldwide, and can be treated with a variety of medications, behavioral therapies, and in some cases, surgery.
Foreign-body migration is a medical condition in which a foreign object, such as a piece of food, a splinter, or a surgical implant, moves from its original location in the body to a new location. This can occur due to various factors, including the body's natural movements, changes in the shape or size of the foreign object, or the body's immune response to the object. Foreign-body migration can be a serious medical problem, as it can cause inflammation, infection, or damage to surrounding tissues. In some cases, the foreign object may become trapped in a narrow passage or obstruct a vital organ, leading to serious complications. Treatment for foreign-body migration depends on the location and size of the object, as well as the severity of any associated complications. In some cases, the object may be able to be removed through minimally invasive procedures, such as endoscopy or laparoscopy. In more severe cases, surgery may be necessary to remove the object and repair any damage caused by its migration.
The coronary sinus is a large, thin-walled vein in the heart that collects blood from the small cardiac veins and returns it to the right atrium of the heart. It is located in the atrioventricular groove, which is the sulcus that separates the left and right atria from the left and right ventricles. The coronary sinus is an important part of the venous system of the heart and plays a role in regulating blood flow and pressure within the heart. It is also a common site for the placement of pacemakers and other cardiac devices.
Cardiology is a branch of medicine that deals with the diagnosis, treatment, and prevention of diseases and disorders related to the heart and blood vessels. Cardiologists are medical doctors who specialize in the study and treatment of the cardiovascular system, which includes the heart, arteries, veins, and capillaries. Cardiologists use a variety of diagnostic tools and techniques to evaluate patients with heart and blood vessel problems, including electrocardiograms (ECGs), echocardiograms, cardiac catheterization, and angiography. They also prescribe medications, perform procedures such as angioplasty and stenting, and may recommend surgery in some cases. Cardiology is a broad field that encompasses many different conditions, including coronary artery disease, heart failure, arrhythmias, valvular heart disease, and congenital heart defects. Cardiologists work closely with other healthcare professionals, such as primary care physicians, nurses, and surgeons, to provide comprehensive care for patients with cardiovascular problems.
In the medical field, the chi-square distribution is a statistical tool used to analyze the relationship between two categorical variables. It is often used in medical research to determine whether there is a significant association between two variables, such as the presence of a disease and a particular risk factor. The chi-square distribution is a probability distribution that describes the sum of the squared differences between the observed and expected frequencies of a categorical variable. It is commonly used in hypothesis testing to determine whether the observed frequencies of a categorical variable differ significantly from the expected frequencies. In medical research, the chi-square test is often used to analyze the relationship between two categorical variables, such as the presence of a disease and a particular risk factor. For example, a researcher may want to determine whether there is a significant association between smoking and lung cancer. To do this, the researcher would collect data on the smoking habits of a group of people and their incidence of lung cancer. The chi-square test would then be used to determine whether the observed frequencies of lung cancer among smokers differ significantly from the expected frequencies based on the overall incidence of lung cancer in the population. Overall, the chi-square distribution is a valuable tool in medical research for analyzing the relationship between categorical variables and determining whether observed frequencies differ significantly from expected frequencies.
Ambulances are vehicles specifically designed and equipped to transport patients to and from medical facilities, such as hospitals, clinics, or urgent care centers. They are staffed by trained medical professionals, such as emergency medical technicians (EMTs) or paramedics, who are responsible for providing medical care to patients during transport. Ambulances are typically equipped with medical equipment and supplies, such as oxygen tanks, defibrillators, intravenous (IV) pumps, and medication carts, to provide basic medical care to patients. They may also have specialized equipment, such as stretchers or backboards, to help move patients who are unable to walk or who require additional support during transport. In addition to transporting patients to medical facilities, ambulances may also be used to provide emergency medical care at the scene of an accident or other medical emergency. This can include administering first aid, performing CPR, or providing other life-saving interventions until the patient can be transported to a medical facility for further treatment.
Bradycardia is a medical condition characterized by a slow heart rate, which is defined as a resting heart rate of less than 60 beats per minute (bpm). The normal resting heart rate for adults is typically between 60 and 100 bpm. Bradycardia can be classified as sinus bradycardia, which is a slow heart rate that originates from the sinoatrial node, or as non-sinus bradycardia, which is a slow heart rate that originates from another part of the heart. Bradycardia can be asymptomatic or may cause symptoms such as dizziness, fainting, shortness of breath, chest pain, or palpitations. It can be caused by a variety of factors, including electrolyte imbalances, medications, heart disease, thyroid disorders, and certain genetic conditions. Treatment for bradycardia depends on the underlying cause and the severity of symptoms. In some cases, no treatment may be necessary, while in others, medications, a pacemaker, or other medical procedures may be recommended.
Sick Sinus Syndrome (SSS) is a condition characterized by abnormal functioning of the sinoatrial (SA) node, which is the natural pacemaker of the heart. The SA node is responsible for generating electrical impulses that initiate each heartbeat. In SSS, the SA node does not function properly, leading to an irregular heartbeat (arrhythmia). SSS can be caused by a variety of factors, including damage to the SA node or its surrounding tissue, inflammation or infection of the heart, or certain medications. Symptoms of SSS may include palpitations, dizziness, fainting, and shortness of breath. In severe cases, SSS can lead to life-threatening arrhythmias. Treatment for SSS typically involves medications to regulate the heartbeat or, in more severe cases, implantation of a pacemaker or other device to help control the heart's rhythm. In some cases, surgery may be necessary to repair or replace the damaged SA node.
Combined modality therapy (CMT) is a cancer treatment approach that involves using two or more different types of treatments simultaneously or in sequence to achieve a better therapeutic effect than any single treatment alone. The goal of CMT is to increase the effectiveness of cancer treatment while minimizing side effects. The different types of treatments that may be used in CMT include surgery, radiation therapy, chemotherapy, immunotherapy, targeted therapy, and hormonal therapy. The specific combination of treatments used in CMT depends on the type and stage of cancer, as well as the patient's overall health and individual needs. CMT is often used for the treatment of advanced or aggressive cancers, where a single treatment may not be effective. By combining different treatments, CMT can help to destroy cancer cells more completely and prevent the cancer from returning. However, CMT can also have more significant side effects than a single treatment, so it is important for patients to discuss the potential risks and benefits with their healthcare provider before starting treatment.
In the medical field, the cause of death is the underlying reason or condition that directly led to a person's death. It is the primary factor that initiated the chain of events that ultimately resulted in the person's demise. The cause of death is typically determined by a medical examiner or a doctor who has been authorized to issue a death certificate. This determination is based on a thorough examination of the person's medical history, physical examination, and any relevant test results. The cause of death can be either an acute or chronic condition, and it can be related to a variety of factors, including illness, injury, genetics, environmental factors, or lifestyle choices. Some common causes of death include heart disease, cancer, stroke, respiratory failure, and accidents.
Cardiovascular agents are drugs that are used to treat conditions related to the heart and blood vessels, such as high blood pressure, heart failure, angina, and arrhythmias. These agents can be classified into several categories, including diuretics, beta blockers, calcium channel blockers, ACE inhibitors, angiotensin receptor blockers, and nitrates. These drugs work by affecting various physiological processes in the body, such as blood pressure regulation, heart rate, and blood vessel dilation, to improve cardiovascular function and reduce the risk of heart disease and stroke.
Atrioventricular (AV) block is a type of heart rhythm disorder that occurs when the electrical signals that regulate the heartbeat are delayed or blocked as they travel from the atria (upper chambers) to the ventricles (lower chambers) of the heart. This can cause the heart to beat too slowly or irregularly, which can lead to symptoms such as dizziness, fainting, and shortness of breath. There are three main types of AV block: first-degree, second-degree, and third-degree. First-degree AV block is the mildest form and is characterized by a delay in the electrical signal between the atria and ventricles. Second-degree AV block is more severe and is characterized by a partial blockage of the electrical signal, which can result in a slower heart rate. Third-degree AV block is the most severe form and is characterized by a complete blockage of the electrical signal, which can result in a very slow or irregular heart rate. AV block can be caused by a variety of factors, including damage to the heart muscle, certain medications, and underlying heart conditions such as coronary artery disease or heart failure. Treatment for AV block depends on the severity of the condition and may include medications, a pacemaker, or surgery.
Anxiety is a common mental health condition characterized by excessive and persistent worry, fear, and unease about everyday situations or events. It can also manifest as physical symptoms such as restlessness, irritability, muscle tension, and difficulty sleeping. In the medical field, anxiety is typically diagnosed and treated by mental health professionals such as psychiatrists, psychologists, and therapists. Treatment options for anxiety may include medication, psychotherapy, or a combination of both. It is important to note that anxiety can be a symptom of other medical conditions, so it is important to consult a healthcare provider if you are experiencing symptoms of anxiety.
Long QT Syndrome (LQTS) is a rare genetic disorder that affects the heart's electrical activity, specifically the time it takes for the heart to recharge between beats. In individuals with LQTS, the QT interval on an electrocardiogram (ECG) is prolonged, which can lead to abnormal heart rhythms and potentially life-threatening arrhythmias, such as torsades de pointes. LQTS is caused by mutations in genes that regulate the flow of ions across the heart's cell membranes. These mutations can disrupt the normal balance of ions, leading to abnormal electrical activity in the heart. The severity of LQTS can vary widely, with some individuals experiencing only mild symptoms and others experiencing severe symptoms or even sudden cardiac death. Treatment for LQTS typically involves medications to slow the heart rate and prevent abnormal heart rhythms, as well as lifestyle changes such as avoiding certain triggers that can worsen symptoms. In some cases, individuals with LQTS may require an implantable cardioverter-defibrillator (ICD) to detect and treat life-threatening arrhythmias.
In the medical field, "automobile driving" typically refers to the ability of an individual to safely operate a motor vehicle on public roads. This can be an important consideration for medical professionals when evaluating a patient's overall health and fitness to drive, particularly in cases where the patient has a medical condition that may affect their ability to safely operate a vehicle. For example, a patient with a history of seizures or a neurological disorder may need to undergo a driving evaluation to determine whether they are safe to drive. Similarly, a patient with a chronic medical condition such as diabetes or heart disease may need to have their driving abilities evaluated to ensure that they are able to respond quickly and effectively in the event of an emergency while driving. Overall, the ability to safely operate a motor vehicle is an important aspect of an individual's overall health and well-being, and medical professionals may need to consider this when evaluating a patient's overall health and fitness to drive.
Accelerated Idioventricular Rhythm (AIVR) is a type of abnormal heart rhythm that occurs when the heart beats faster than normal, but in a regular pattern. It is also known as Accelerated Ventricular Rhythm (AVR) or Accelerated Ventricular Escape (AVE). In AIVR, the heart beats at a rate of more than 100 beats per minute, but the rhythm is still regular, meaning that the intervals between each beat are consistent. This is in contrast to other types of abnormal heart rhythms, such as atrial fibrillation, where the heart beats irregularly. AIVR can occur in people with or without underlying heart disease, and it is often a temporary condition that resolves on its own. However, in some cases, AIVR can be a sign of a more serious underlying condition, such as an enlarged heart or heart failure. Treatment for AIVR may include medications to slow the heart rate or to correct any underlying heart problems.
Heart injuries refer to any type of damage or trauma that affects the heart or its surrounding structures. These injuries can be caused by a variety of factors, including blunt force trauma, penetration wounds, or sudden cardiac arrest. Some common types of heart injuries include: 1. Contusion: A bruise or contusion on the heart caused by blunt force trauma. 2. Pericardial injury: Damage to the sac that surrounds the heart, which can cause bleeding or inflammation. 3. Cardiac tamponade: A life-threatening condition in which blood or other fluid builds up around the heart, compressing it and preventing it from functioning properly. 4. Myocardial contusion: Damage to the heart muscle caused by blunt force trauma. 5. Cardiac rupture: A tear in the heart muscle or wall, which can cause significant bleeding and be life-threatening. 6. Pericarditis: Inflammation of the pericardium, which can cause chest pain, fever, and other symptoms. 7. Cardiac arrest: A sudden and complete loss of heart function, which can be caused by a variety of factors, including heart attack, electrical disturbances, or sudden cardiac death. Heart injuries can be serious and require prompt medical attention. Treatment may include medications, surgery, or other interventions depending on the severity and type of injury.
Cohort studies are a type of observational study in the medical field that involves following a group of individuals (a cohort) over time to identify the incidence of a particular disease or health outcome. The individuals in the cohort are typically selected based on a common characteristic, such as age, gender, or exposure to a particular risk factor. During the study, researchers collect data on the health and lifestyle of the cohort members, and then compare the incidence of the disease or health outcome between different subgroups within the cohort. This can help researchers identify risk factors or protective factors associated with the disease or outcome. Cohort studies are useful for studying the long-term effects of exposure to a particular risk factor, such as smoking or air pollution, on the development of a disease. They can also be used to evaluate the effectiveness of interventions or treatments for a particular disease. One of the main advantages of cohort studies is that they can provide strong evidence of causality, as the exposure and outcome are measured over a long period of time and in the same group of individuals. However, they can be expensive and time-consuming to conduct, and may be subject to biases if the cohort is not representative of the general population.
The American Heart Association (AHA) is a non-profit organization that is dedicated to promoting cardiovascular health and preventing heart disease and stroke. The AHA was founded in 1924 and is headquartered in Dallas, Texas. The AHA conducts research, develops guidelines and policies, and provides education and training to healthcare professionals and the public on topics related to heart disease, stroke, and other cardiovascular conditions. The organization also advocates for public policies that promote cardiovascular health and works to raise awareness about the importance of healthy lifestyle choices, such as regular physical activity, a healthy diet, and not smoking. The AHA's research and guidelines are widely respected in the medical field and are often used as the basis for clinical practice recommendations. The organization also publishes a number of well-known medical journals, including Circulation and Circulation Research.
Imidazolidines are a class of heterocyclic compounds that contain a five-membered ring with two nitrogen atoms and three carbon atoms. They are commonly used in the medical field as antimicrobial agents, particularly against bacteria and fungi. Imidazolidines are also used as antiviral agents, antifungal agents, and as inhibitors of various enzymes, including proteases and kinases. Some examples of imidazolidines that have been used in medicine include linezolid, an antibiotic used to treat bacterial infections, and posaconazole, an antifungal agent used to treat invasive fungal infections.
Body Surface Potential Mapping (BSPM) is a diagnostic technique used in the medical field to map the electrical activity of the heart. It involves placing electrodes on different parts of the body to measure the electrical potential differences between them. These measurements are then used to create a map of the electrical activity of the heart, which can help diagnose various heart conditions such as arrhythmias, heart blockages, and myocardial infarctions (heart attacks). BSPM is a non-invasive and painless procedure that is often used in conjunction with other diagnostic tests such as electrocardiography (ECG) and echocardiography.
Biocompatible materials are materials that are designed to interact with living tissues in a way that is safe and non-toxic. These materials are used in a variety of medical applications, including implants, prosthetics, and drug delivery systems. Biocompatible materials must be able to withstand the harsh conditions of the human body, including exposure to bodily fluids, enzymes, and bacteria. They must also be able to integrate with the surrounding tissue and promote healing, rather than causing inflammation or rejection. Some examples of biocompatible materials include metals such as titanium and stainless steel, polymers such as polyethylene and polypropylene, and ceramics such as hydroxyapatite. These materials are often used in the manufacturing of medical devices and implants, such as hip replacements, dental implants, and pacemakers. It is important to note that while a material may be biocompatible, it may not be suitable for all medical applications. The choice of material depends on a variety of factors, including the intended use of the device, the patient's individual needs and health status, and the specific requirements of the medical procedure.
Heart block is a condition in which the electrical signals that regulate the heartbeat are slowed or blocked as they travel through the heart's conduction system. This can cause the heart to beat too slowly (bradycardia) or irregularly, which can lead to symptoms such as dizziness, fainting, and shortness of breath. There are three main types of heart block: first-degree, second-degree, and third-degree. First-degree heart block is the mildest form and usually does not cause any symptoms. Second-degree heart block is more serious and can cause symptoms, especially if it is caused by an underlying heart condition. Third-degree heart block is the most serious form and can lead to life-threatening complications if not treated promptly. Heart block can be caused by a variety of factors, including damage to the heart muscle, certain medications, and inherited conditions. Treatment options depend on the severity of the heart block and the underlying cause. In some cases, a pacemaker may be necessary to regulate the heartbeat.
Catheterization of the central veins is a medical procedure in which a thin, flexible tube called a catheter is inserted into a large vein in the chest or neck. This procedure is used to access the bloodstream and deliver medications, nutrients, or other substances directly to the bloodstream. It is also used to remove blood for laboratory testing or to drain excess fluid from the body. Central venous catheterization is typically performed by a trained healthcare professional in a hospital or clinic setting. It is a common procedure that is used in a variety of medical situations, including the treatment of cancer, kidney failure, and heart disease.
Subcutaneous implantable defibrillator
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Management of heart failure
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Cardioversion: MedlinePlus Medical Encyclopedia
- If your arrhythmia is serious, you may need a cardiac pacemaker or an implantable cardioverter defibrillator (ICD). (medlineplus.gov)
- My Child Needs or Has an Implantable Cardioverter-Defibrillator: What Should I Do? (medlineplus.gov)
- This guidance provides best practices for manufacturers when drafting and issuing Dear Doctor letters to disseminate information about significant health hazards to users of implantable cardioverter defibrillators (ICDs). (fda.gov)
- Some patients with heart failure may be considering an Implantable cardioverter defibrillator or ICD. (cardiosmart.org)
- Spanish Implantable Cardioverter-Defibrillator Registry. (revespcardiol.org)
- Changes in the major indications for implantable cardioverter defibrillators (primary implants) between 2002 and 2006. (revespcardiol.org)
- An Implantable Cardioverter Defibrillator (ICD) is like a pacemaker in that it is an implanted, battery-operated device. (cvcheart.com)
- Australia: A recent study published in EP Europace has reported a high prevalence of depression and anxiety in ICD (implantable cardioverter. (medicaldialogues.in)
- Non-MRI conditional implantable cardioverter-defibrillators (ICDs) are able to appropriately detect and treat tachyarrhythmias after MRI, and no. (medicaldialogues.in)
- Implantable Cardioverter-Defibrillators (ICDs) is beneficial in Younger Nonischaemic Heart Failure (HF) patients, according to a recent study. (medicaldialogues.in)
- Implantable Cardioverter-Defibrillators (ICD) implantation beneficial in patients with high-risk LQTS, according to a recent study published in the. (medicaldialogues.in)
- However, there is scarce information on the efficacy, applicability, and safety of these interventions in adult patients with an implantable cardioverter-defibrillator (ICD). (viamedica.pl)
- BACKGROUND: Defibrillation threshold (DFT) testing during placement of an implantable cardioverter-defibrillator (ICD) has been considered mandatory. (mcmaster.ca)
- What is an implantable cardioverter defibrillator? (suddencardiacarrestuk.org)
- An implantable cardioverter-defibrillator (ICD) is a battery-powered device placed under the skin to monitor the heart rate. (suddencardiacarrestuk.org)
- An implantable cardioverter-defibrillator (ICD) is a specialized device designed to directly treat a cardiac tachydysrhythmia. (medscape.com)
- Making use of three clinical illustrations of patients with surgical patch of Implantable Cardioverter Defibrillator and experiences of panic and abandonment, is proposed a dialogue between the knowledges of medicine and psychoanalytic psychosomatic, theorizing with it the importance of a listening space for patient's psychological issues, concomitant to medical treatment itself. (bvsalud.org)
- Patients using a pacemaker or implantable cardioverter defibrillator (ICD) require regular follow-up to control the performance and remaining longevity of the device. (ecrjournal.com)
- Background: Implantable cardioverter-defibrillators (ICDs) are increasingly used for primary and secondary prevention of sudden cardiac death. (johnshopkins.edu)
- An implantable cardioverter-defibrillator (ICD) is a heart device that is implanted under the skin on your chest to continuously monitor your heart rhythm. (mobitzheart.com)
- The risk for complications related to the surgery performed to insert your implantable cardioverter defibrillator (ICD) is low. (mobitzheart.com)
- Introduction: The Respiratory Disturbance Index (RDI) computed by an implantable cardioverter defibrillator (ICD) algorithm accurately identifies severe sleep apnea (SA). (unimore.it)
- An implantable cardioverter defibrillator monitors heart rhythms. (papertrell.com)
- What happens during an implantable cardioverter defibrillator procedure? (sharecare.com)
- An implantable cardioverter-defibrillator (ICD) is a device that is placed inside your body. (medlineplus.gov)
- Implantable cardioverter-defibrillators in end-stage heart failure patients listed for heart transplantation: Results from a large retrospective registry. (chirurgie-cardiaque-pitie.fr)
- Uslan DZ , Sohail MR , St Sauver JL , Friedman PA , Hayes DL , Stoner SM , Permanent pacemaker and implantable cardioverter defibrillator infection: a population-based study. (cdc.gov)
- Include information on family members with heart failure, atrial fibrillation, ventricular tachycardia, ventricular fibrillation, stroke, heart attack, heart transplant, or implantable cardioverter-defibrillator (ICD) (like a pacemaker). (cdc.gov)
- Notably, clinical risk stratification in those with HCM can guide the use of life-saving implantable cardioverter-defibrillator therapy. (cdc.gov)
- Patients over 18 years old in the Stockholm Region identified to have SAB in the Karolinska Laboratory database from January 2015 through December 2019 were matched to the Swedish Pacemaker and Implantable Cardioverter-Defibrillator ICD Registry to identify the study cohort. (lu.se)
- Definitive testing for Brugada syndrome is done in the electrophysiology laboratory, where, if the diagnosis is confirmed, an implantable cardioverter-defibrillator ( ICD ) is placed. (medscape.com)
Pacemakers and implantable2
- Modern pacemakers and implantable defibrillators from all major device companies have wireless capabilities that allow them to automatically communicate data to a transmitter unit installed at the patient's home, which then relays the data to a secure database. (ecrjournal.com)
- Both pacemakers and implantable defibrillators are used to treat arrhythmias in the heart rate. (papertrell.com)
- Factors predisposing against testing were cardiac resynchronization therapy defibrillator implantation (RR 0.56) and concomitant diuretic use (RR 0.71). (mcmaster.ca)
- Implantable defibrillators allow patients to live a full life with many normal activities. (cvcheart.com)
- Since that time, factors affecting long-term survival and the natural history of defibrillator patients have not been described. (johnshopkins.edu)
- Patients in the trial were randomized to 1 of 3 arms: optimal medical therapy, resynchronization therapy with the Guidant Corp CONTAK TR® device, or resynchronization/defibrillator therapy with Guidant's CONTAK CD® device. (medscape.com)
- In addition, there was a statistically significant 40% reduction in all-cause mortality in patients who received the resynchronization/defibrillator device. (medscape.com)
- La présente étude a examiné l'association de la personnalité de type D (et ses composantes) à la qualité de vie des patients atteints de troubles cardiaques comparativement à la qualité de vie des personnes en bonne santé. (who.int)
- Patients with cardiac implantable electronic device (CIED) and Staphylococcus aureus bacteraemia (SAB) are at risk of having infective endocarditis (IE). (lu.se)
- However, many patients with cardiac implantable fonctions cardiaques et non cardiaques. (bvsalud.org)
- This document specifies test methodologies for the evaluation of the electromagnetic compatibility (EMC) of active implantable cardiovascular devices that provide one or more therapies for bradycardia, tachycardia and cardiac resynchronization in conjunction with transvenous lead systems. (iso.org)
- The leads carry the electrical impulses from the defibrillator to your heart and transmit information about the heart's activity back to the defibrillator. (mobitzheart.com)
- Defibrillators were introduced into clinical practice in 1980. (johnshopkins.edu)
- Older implantable devices require a telemetry wand for manual interrogation by the patient, which is an obvious drawback. (ecrjournal.com)
- Cependant, beaucoup de pa- electronic devices (CIEDs) and/or severe renal dysfunction are unable tients porteurs d'un dispositif cardiaque electronique implantable to undergo this test because of safety concerns. (bvsalud.org)
- The defibrillator is activated and an electric shock is delivered to your heart. (medlineplus.gov)
- The ICD system includes a defibrillator (also called ICD generator or battery) and one or multiple special wires (leads). (mobitzheart.com)
Prophylactic implantable cardioverter1
- This review presents a substudy analysis of the Defibrillators in Non-Ischemic Cardiomyopathy Treatment Evaluation (DEFINITE) trial, which examined the role of prophylactic implantable cardioverter defibrillator (ICD) implantation in patients with nonischemic cardiomyopathy. (hcplive.com)
Antiarrhythmics Versus Implantable Defibrillators1
- Prognostic value of baseline electrophysiology studies in patients with sustained ventricular tachyarrhythmia: the Antiarrhythmics Versus Implantable Defibrillators (AVID) trial. (netce.com)
- 1. A review of the evidence on the effects and costs of implantable cardioverter defibrillator therapy in different patient groups, and modelling of cost-effectiveness and cost-utility for these groups in a UK context. (nih.gov)
- 10. Lifetime cost-effectiveness of prophylactic implantation of a cardioverter defibrillator in patients with reduced left ventricular systolic function: results of Markov modelling in a European population. (nih.gov)
Cardiac resynchronisation therapy1
- The US Food and Drug Administration (FDA) has approved Biotronik's Intica DX and Intica cardiac resynchronisation therapy (CRT)-DX implantable cardioverter defibrillator (ICD) systems, which are now available for sale. (cardiacrhythmnews.com)
- To evaluate if use of an implantable cardiac defibrillator (ICD) results in reduction in total mortality, when compared with conventional pharmacological therapy, in patients resuscitated from sudden cardiac death who are otherwise at very high risk of mortality from arrhythmic causes. (nih.gov)
- Making use of three clinical illustrations of patients with surgical patch of Implantable Cardioverter Defibrillator and experiences of panic and abandonment, is proposed a dialogue between the knowledges of medicine and psychoanalytic psychosomatic, theorizing with it the importance of a listening space for patient's psychological issues, concomitant to medical treatment itself. (bvsalud.org)
- In this article, we review the literature on automatic cardioverter defibrillator‐induced ventricular tachyarrhythmias as well as the management of exercise testing in patients with these devices. (umn.edu)
- Today, many patients receive implantable defibrillators as the primary way to prevent sudden death. (nih.gov)
- 18. The cost-effectiveness of primary prophylactic implantable defibrillator therapy in patients with ischaemic or non-ischaemic heart disease: a European analysis. (nih.gov)
- Boston Scientific (NYSE:BSX) launched today its Resonate implantable cardioverter defibrillator and cardiac resynchronization therapy defibrillator systems with the HeartLogic heart failure diagnostic tool. (manufacturingcurated.com)
- An implantable cardioverter-defibrillator (ICD) is often placed in people who have survived an abnormal heart rhythm that could cause sudden death. (stlukesonline.org)
- Implantable cardioverter defibrillator (ICD) therapy is effective but is associated with high-voltage shocks that are painful. (nih.gov)
- Over 4.83 (interquartile range 2.44-9.33) years of follow-up, 146 (27.7%) experienced sustained VA, defined as SCD, aborted SCD, sustained ventricular tachycardia, or appropriate implantable cardioverter-defibrillator (ICD) therapy. (nih.gov)
- 16. Cost-effectiveness of primary prevention implantable cardioverter defibrillator treatment: data from a large clinical registry. (nih.gov)
- abstract = "A 31‐year‐old man who received an automatic Cardioverter defibrillator subsequently underwent exercise testing. (umn.edu)
- Heart Failure: Should I Get an Implantable Cardioverter-Defibrillator (ICD)? (stlukesonline.org)
- People with heart failure who received an implantable cardioverter-defibrillator (ICD) are more likely to be alive more than a decade later compared with those who didn't, according to an NHLBI-funded study published in the Journal of the American College of Cardiology . (nih.gov)
- The only way to correct a heart that is experiencing VFib is to give it an electrical shock with a defibrillator. (healthline.com)
- If the shock is administered in time, a defibrillator can revert the heart back to a normal, healthy rhythm. (healthline.com)
- If you have had VFib more than once or if you have a heart condition that puts you at high risk for developing VFib, your doctor may suggest you get an implantable cardioverter defibrillator (ICD) . (healthline.com)
- Healthcare professionals never determined exactly why it happened, so Lowe is still regularly tested at St. Michael's Hospital and lives with an implantable cardioverter defibrillator to monitor his heart. (cbc.ca)
- That experience inspired Lowe to get behind the GTA Heart Map Challenge - a big scavenger hunt that asks the public to help locate a large portion of Toronto's estimated 20,000 automated external defibrillators (AEDs), and log them online to assist EMS workers. (cbc.ca)
- The date and time of arrhythmia episodes documented by the implanted cardioverter-defibrillators were linked to meteorologic data and examined using a case-crossover analysis. (nih.gov)
- Effects of hyperbaric exposure on mechanical and electronic parameters of implantable cardioverter-defibrillators. (nih.gov)
- Katherine Allen believes people have good intentions when installing defibrillators but often don't know they are supposed to be registered. (cbc.ca)
- Gregg Lowe, an actor, is shown in a headshot where his implantable cardioverter-defibrillator is visible. (cbc.ca)
- I needed the use of an external defibrillator, which basically saved my life - it brought me back. (cbc.ca)
- The government alleges that the company did not disclose serious health events in certain implantable defibrillators. (medtechintelligence.com)
- Epicardial vs. transvenous implantable cardioverter defibrillators in children. (nih.gov)
- 8. Bing Liem L. Implantable Cardioverter-Defibrillator: A Practical Manual . (netce.com)