DopplerAnemiaVesselsArterialViscosityCardiovascular systemGenerated by turbulentThyroidMyocardialObesePulmonaryPeakSystolic blood prArteriesVentricularObesityExcessivePulsePeripheralRapidlyPatientsMurmurFindingsDetectSerumSystoleDiabetesObstructionLevelsPressureStethoscopeLeftStudiesNormalLiverCommonDiseaseYearsSugar
Doppler7
- The assessment of thyroid blood flow by color-flow Doppler ultrasonography is valuable in the differentiation of destructive thyrotoxicosis from Graves disease, according to a study by Kumar et al. (medscape.com)
- Using the modified Bernoulli equation, a maximum instantaneous and mean aortic valve gradient can be derived from the continuous-wave Doppler velocity across the aortic valve. (medscape.com)
- The major limitation of Doppler echocardiography in assessing the severity of aortic stenosis is underestimation of the gradient if the sound beam is not parallel to the aortic stenosis velocity jet. (medscape.com)
- Colour Doppler provides an estimate of the mean velocity of flow within a vessel by colour-coding the information. (spiritsong.org)
- Using color doppler echocardiography, the ventricular systolic peak velocity (SV), atrial systolic trough (aV), pulse index (PD and resistance index (RI) were measured, and the ratio of ventricular systolic peak velocity trough ratio (S/a) from ultrasonic standard section was calculated. (researchgate.net)
- Results: The doppler spectrum of normal fetal DV blood flow showed the same three-phase waves, SV was increased with the increase of gestational age (F=27. (researchgate.net)
- Conclusion: The performance of color Doppler flow imaging of normal fetal DV showed that the blood flow peak speed is increased along with the increase of gestational age and PI, RI and S/a are reduced with the increase of gestational age, and RI has the largest decline, which has important diagnosis value. (researchgate.net)
Anemia3
- Anything increasing the blood flow velocity such as fever, anemia, hyperthyroidism, or physical exertion, can increase the amplitude of the bruit. (wikipedia.org)
- Increased flow velocity may be associated with a younger age, anemia, severely increased blood pressure, hypermetabolic states such as hyperthyroidism and anemia, increased carbon dioxide tension or some drugs such as an acetazolamid and mannitol. (biomedcentral.com)
- Other explanations for increased precordial activity include patient anxiety, anemia and hyperthyroidism. (aafp.org)
Vessels6
- Symptoms - Hot flushes due to sudden launch of blood vessels - Emotional changes - Excessive / tendency to / acquire weight - Insomnia - Appearance of indicators of growing older - Softening of long bones Cause: Hormonal modifications because of getting older of the ovaries takes place during this period and Climacteric changes (hormones) additionally happens throughout this time. (ehd.org)
- Computed tomography (CT) of the abdomen and pelvis is a diagnostic imaging exam used to obtain images of internal organs, bones, soft tissue, and blood vessels using x-rays to create a 3D image. (tghimaging.com)
- Breast ultrasound uses sound waves to create images of the inside of the breasts and shows the structure and movement as wells as the blood flowing through blood vessels. (tghimaging.com)
- CT of the chest is a diagnostic imaging exam used to obtain images of the heart, blood vessels, lungs, ribs and spine using x-rays to create a 3D image. (tghimaging.com)
- Blood Vessels- Has direct vasoconstrictor effect, there is no prominent effect on BP as it is secondary to the improvement in circulation. (pharmanotes.org)
- In addition, and of great importance, patients should receive, probably with the onset of cardiomegaly, spironolactone to minimize histological changes in the heart, kidneys and blood vessels (e.g., remodeling). (vin.com)
Arterial2
- Another common complaint in patients with hyperthyroidism is pulmonary arterial hypertension (PAH), which affects 30 to 65% of these patients. (ac.ir)
- Arterial blood gas measurements are generally not necessary but may be obtained if hypoxemia or a mixed respiratory disease state is suspected. (medscape.com)
Viscosity1
- The conditions under which turbulence will occur (ie, development of a murmur) can be described by the Reynold's number , which is calculated: Re = (mean velocity of blood flow x vessel diameter x blood density) / blood viscosity. (merckvetmanual.com)
Cardiovascular system1
- Thyroid hormones have significant effects on the heart and cardiovascular system, and hyperthyroidism affects left ventricular systolic and diastolic function differently. (ac.ir)
Generated by turbulent2
- Bruit, also called vascular murmur, is the abnormal sound generated by turbulent flow of blood in an artery due to either an area of partial obstruction or a localized high rate of blood flow through an unobstructed artery. (wikipedia.org)
- A heart murmur is generated by turbulent blood flow that can be auscultated with a stethoscope. (merckvetmanual.com)
Thyroid7
- Thyroid hormones have substantial cardiovascular consequences such as decreased peripheral vascular and post-load resistance and elevated heart rate, myocardial contractility, blood pressure, and cardiac output. (ac.ir)
- Additional laboratory evaluation commonly includes a urinalysis, PSA, thyroid studies, fasting lipid profile, liver function studies, screening for diabetes and a complete blood count (CBC). (uofmhealth.org)
- It is often confused with hyperthyroidism , which is caused by excessive endogenous thyroid hormone production. (medscape.com)
- A decrease in blood thyroid hormone triiodothyronine (T3)/thyroxine (T4) levels results in the inhibition of thyrotropin-releasing hormone and thyrotropin production. (medscape.com)
- Hyperthyroidism is a type of thyrotoxicosis in which accelerated thyroid hormone biosynthesis and secretion by the thyroid gland produce thyrotoxicosis. (medscape.com)
- [ 7 ] This is because, although many patients have thyrotoxicosis caused by hyperthyroidism, other patients may have thyrotoxicosis resulting from inflammation of the thyroid gland, which causes the release of stored thyroid hormone but not accelerated synthesis, or they may have thyrotoxicosis, which is caused by ingestion of exogenous thyroid hormone. (medscape.com)
- Thyroid blood flow, as assessed by peak systolic velocity of the inferior thyroid artery, was significantly higher in patients with Graves disease. (medscape.com)
Myocardial3
- By blocking catecholamine-induced increases in heart rate, in velocity and extent of myocardial contraction, and in blood pressure, metoprolol reduces the oxygen requirements of the heart at any given level of effort, thus making it useful in the long-term management of angina pectoris. (nih.gov)
- In several studies of patients with acute myocardial infarction, intravenous followed by oral administration of metoprolol caused a reduction in heart rate, systolic blood pressure and cardiac output. (nih.gov)
- Treatment of mitral regurgitation should be directed at minimizing mitral regurgitation, improving forward blood flow, minimizing chronic stretch of myocardial fibers, improving lung function, regulating the ventricular rate, and preventing "down-regulation" high pressure baroreceptors and B1 receptors. (vin.com)
Obese1
- Cardiac MRI allows for extremely accurate quantification of flow volumes and of flow velocities, even in obese patients without the risks of exposure to ionizing radiation. (tghimaging.com)
Pulmonary1
- Stroke volume, diastolic blood pressure and pulmonary artery end diastolic pressure remained unchanged. (nih.gov)
Peak4
- Peak systolic, end diastolic and mean velocities of nine main intracranial arteries were determined using TCD. (biomedcentral.com)
- The average of the maximum velocity (MV), peak systolic velocity (PV), end diastolic velocity (EDV) and pulsatility index (PI) were automatically calculated and recorded. (biomedcentral.com)
- Apoptotic peak was detected by flow cytometry and the ladder band appeared in DNA electrophoresis. (researchgate.net)
- A second hypothesis suggests that the principal high-frequency elements of S1 are related to movement and acceleration of blood in early systole, and are influenced by the peak rate of rise of left ventricular (LV) systolic pressure (dP/dt), which is a measure of contractility and ejection of blood into the root of the aorta [ 14 ]. (medilib.ir)
Systolic blood pr2
- Clinical pharmacology studies have demonstrated the beta-blocking activity of metoprolol, as shown by (1) reduction in heart rate and cardiac output at rest and upon exercise, (2) reduction of systolic blood pressure upon exercise, (3) inhibition of isoproterenol-induced tachycardia, and (4) reduction of reflex orthostatic tachycardia. (nih.gov)
- After repeated oral dosages of 100 mg twice daily, a significant reduction in exercise systolic blood pressure was evident at 12 hours. (nih.gov)
Arteries2
- Mean blood flow velocity in middle, anterior and posterior cerebral arteries, vertebral and basilar arteries was 60 ± 8, 52 ± 9, 42 ± 6, 39 ± 8 and 48 ± 8 cm/sec respectively. (biomedcentral.com)
- examination of the changes in flow velocities of the cavernosal arteries after injection of a vasoactive agent (PGE1 or papaverine/phentolamine). (uofmhealth.org)
Ventricular3
- Background: Since hyperthyroidism could be associated with right ventricular dysfunction, this study intended to investigate right ventricular (RV) function using strain echocardiography in hyperthyroid patients both at rest and in maximum-stress conditions. (ac.ir)
- When given by rapid intravenous injection, it produces a rapid rise in blood pressure, mainly systolic, by (1) direct stimulation of cardiac muscle which increases the strength of ventricular contraction, (2) increasing the heart rate and (3) constriction of the arterioles in the skin, mucosa and splanchnic areas of the circulation. (drugs-library.com)
- Mitral regurgitation refers to the leaking of blood from the left ventricle into the left atrium during the period of left ventricular systole. (vin.com)
Obesity1
- Endocrinologic (decline in serum testosterone levels) - Possible causes include hypogonadism, hyperthyroidism, hypothyroidism and obesity. (uofmhealth.org)
Excessive1
- Due to excessive glucose in blood, BSL (Blood Sugar Level) increases that ultimately leads to diabetes 3 . (ijpsr.com)
Pulse1
- Although some increase in pulse pressure occurs, there is usually no great elevation in mean blood pressure. (drugs-library.com)
Peripheral2
- Peripheral and hepatic insulin antagonism in hyperthyroidism. (nhri.edu.tw)
- Total peripheral resistance decreases by action of epinephrine on beta receptors of the skeletal muscle vasculature and blood flow is thereby enhanced. (drugs-library.com)
Rapidly2
- Precordial palpation is also necessary to feel "thrills," which are the palpable consequence of blood flowing rapidly from high pressure to lower pressure. (aafp.org)
- Following intravenous injection epinephrine disappears rapidly from the blood stream. (drugs-library.com)
Patients2
- Therefore, it highlights the necessity of early diagnosis and treatment of hyperthyroidism, as well as RV function evaluation in these patients. (ac.ir)
- Insulin resistance and abnormal electrocardiograms in patients with high blood pressure. (nhri.edu.tw)
Murmur2
- The intensity of the murmur does not correlate with the amount of blood regurgitating, although when the valve first begins to leak the murmur starts out very softly. (vin.com)
- When the ventricle dilates ands begins to fail, the force driving blood regurgitantly decreases and even though there may be more regurgitation it does so at a lower velocity and therefore with a softer murmur. (vin.com)
Findings1
- There are conflicting findings from studies investigating the impact of hyperthyroidism on cardiovascular events. (ac.ir)
Detect1
- Due to some geographic variations, it is good for each medical center to detect normal blood flow velocity values for the regional population which in turn can help in better interpretation of TCD results. (biomedcentral.com)
Serum1
- Diagnostic studies in the emergency department should include electrocardiography (ECG), chest radiography, serum electrolyte levels, cardiac biomarkers, and a complete blood count (CBC). (medscape.com)
Systole1
- Congestive heart failure (CHF), or heart failure, is a condition in which the heart is unable to pump sufficient blood to meet the metabolic demand of the body and also unable to receive it back because every time after a systole. (pharmanotes.org)
Diabetes2
- [ 6 ] Rats with diabetes have been shown to have reduced blood flow to the nerves. (medscape.com)
- If you have diabetes, monitor your blood sugar carefully if you are taking DHEA. (medlineplus.gov)
Obstruction1
- The transvalvular gradient is dependent on the severity of obstruction and the flow across the valve. (medscape.com)
Levels2
- It is specifically used for imaging in men with suspected prostate cancer recurrence based on elevated blood prostate specific antigen levels following prior treatment. (tghimaging.com)
- In selecting a LANOXIN dosing regimen, it is important to consider factors that affect digoxin blood levels (e.g., body weight, age, renal function, concomitant drugs) since toxic levels of digoxin are only slightly higher than therapeutic levels. (guidelinecentral.com)
Pressure4
- If the timing and intensity of the two pulses are equal and blood pressure in the right arm is normal, coarctation of the aorta is unlikely. (aafp.org)
- While short bursts of stress hormones are essential for survival, long-term exposure can wreak havoc on your body, leading to hormonal imbalances, blood sugar fluctuations, high blood pressure, fertility issues, energy depletion, digestive problems, mood swings, and compromised immunity. (teelixir.com.au)
- Accordingly, the compensatory reflex mechanisms that come into play with a pronounced increase in blood pressure do not antagonize the direct cardiac actions of epinephrine as much as with catecholamines that have a predominant action on alpha receptors. (drugs-library.com)
- Heart failure develops when the heart, via an abnormality of cardiac function (detectable or not), fails to pump blood at a rate commensurate with the requirements of the metabolizing tissues or is able to do so only with an elevated diastolic filling pressure. (medscape.com)
Stethoscope1
- The bruit may be heard ("auscultated") by securely placing the head of a stethoscope to the skin over the turbulent flow, and listening. (wikipedia.org)
Left1
- Cerebral blood flow velocity of left side was relatively higher than right side. (biomedcentral.com)
Studies2
- Compared to previous studies, cerebral blood flow velocity in this population was relatively higher. (biomedcentral.com)
- Myoinositol and taurine depletion have been associated with reduced Na + /K + -ATPase activity and decreased nerve conduction velocities (NCVs), all of which are corrected by aldose reductase inhibitors in rat studies. (medscape.com)
Normal1
- The aim of this study was to assess normal population values of cerebral blood flow velocity and its variation over age and gender in a given population. (biomedcentral.com)
Liver1
- The drug also produces an increase in blood sugar and glycogenolysis in the liver. (drugs-library.com)
Common1
- Hyperthyroidism is a common disorder that is more prevalent in adults. (ac.ir)
Disease1
- Differentiating between thyrotoxicosis caused by hyperthyroidism and thyrotoxicosis not caused by hyperthyroidism is important, because disease management and therapy differ for each form. (medscape.com)
Years1
- 1 In recent years, hyperthyroidism-associated cardiac dysfunctions were more widely recognized. (ac.ir)
Sugar1
- According to the WHO (World Health Organization), it was estimated that 3.4 million deaths are caused due to high blood sugar. (ijpsr.com)