Bradycardia. At 5-6 weeks GA, the mean embryonic heart rate is 101 beats per minute (bpm). This rate increases to 143 bpm by 8 ...

Sinus bradycardia can be defined as a sinus rhythm with a resting heart rate of 60 beats per minute or less. However, few ... Causes of sinus bradycardia include the following:. * One of the most common pathologic causes of symptomatic sinus bradycardia ... The pathophysiology of sinus bradycardia is dependent on the underlying cause. [1] Commonly, sinus bradycardia is an incidental ... encoded search term (Sinus Bradycardia) and Sinus Bradycardia What to Read Next on Medscape ...

Reflex bradycardia and, less frequently, cardiac arrest have been noted in acute SCI. Bradycardia is often precipitated by ... Hypotension and bradycardia - As discussed previously, hypotension and bradycardia typically improve within days to weeks, and ... For bradycardia, atropine is the drug of choice, although it is rarely used in rehabilitation settings except during ... Bradycardia and cardiac arrest during tracheal suction--mechanisms in tetraplegic patients. Eur J Intensive Care Med. 1976. 2(4 ...

Electrocardiography may reveal sinus bradycardia, low-amplitude QRS complexes, a prolonged QT interval, flattened or inverted T ... Cardiac contractility is impaired, leading to reduced stroke volume, low cardiac output, bradycardia and sometimes hypotension. ... Factors suggesting a poor prognosis are older age, persistent hypothermia, bradycardia, lower degree of consciousness by ... Electrocardiographic findings may include bradycardia, varying degrees of block, low voltage, nonspecific ST-segment changes, ...

Bradycardia, hypotension, and T-wave abnormalities may occur in relation to the amount of ingested ciguatoxin. Cardiovascular ...

Hashimoto thyroiditis is part of the spectrum of autoimmune thyroid diseases (AITDs) and is characterized by the destruction of thyroid cells by various cell- and antibody-mediated immune processes. This condition is the most common cause of hypothyroidism in the United States in individuals older than 6 years.

Hypoglycemia may be considered a biochemical symptom, indicating the presence of an underlying cause. Because glucose is the fundamental energy currency of the cell, disorders that affect its availability or use can cause hypoglycemia.

Thyroid-associated orbitopathy (TAO), frequently termed Graves ophthalmopathy, is part of an autoimmune process that can affect the orbital and periorbital tissue, the thyroid gland, and, rarely, the pretibial skin or digits (thyroid acropachy). Although the use of the term thyroid ophthalmopathy is pervasive, the disease process is actually ...

Cluster headache (CH), also known as histamine headache, is a primary neurovascular primary headache disorder, the pathophysiology and etiology of which are not well understood. As the name suggests, CH involves a grouping of headaches, usually over a period of several weeks.

Glycogen-storage disease (GSD) type III (GSD III) is an autosomal recessive inborn error of metabolism caused by loss of function mutations of the glycogen debranching enzyme (Amylo-1,6-glucosidase [AGL]) gene, which is located at chromosome band 1p21.2.

Guillain-Barré syndrome (GBS) can be described as a collection of clinical syndromes that manifests as an acute inflammatory polyradiculoneuropathy with resultant weakness and diminished reflexes. With poliomyelitis under control in developed countries, GBS is now the most important cause of acute flaccid paralysis.

Hyponatremia is defined as serum sodium (Na) concentration of less than 135 mEq/L. Plasma Na plays a significant role in plasma osmolality and tonicity (serum osmolarity = 2Na + Glu/18 + BUN/2.

Bradycardia is a common feature in patients with LQTS. View Media Gallery ... although some patients may present with excessive bradycardia for their age, and some patients may have hearing loss ( ... Bradycardia is a common feature in patients with LQTS. ...

Precautions - Hypotension; bradycardia; cardiac arrest; excitation; drowsiness; nervousness; dizziness; seizures; blurred ...

Patients experience burning of the mouth, pharynx, and esophagus; swallowing difficulties; diarrhea; bradycardia; cardiac ...

Early afterdepolarizations commonly are responsible for bradycardia associated VPCs, but they also can be present with ischemia ...

Hypothyroidism is a common endocrine disorder resulting from deficiency of thyroid hormone. It usually is a primary process in which the thyroid gland is unable to produce sufficient amounts of thyroid hormone.

Bradycardia * Shortening of QT interval Calcium has a positive inotropic effect. Hypercalcemia also causes hypertension, ...

Sinus bradycardia and AV conduction blocks are the most common ECG changes in the pediatric population, while ventricular ... Magnesium sulfate may terminate dysrhythmias, but is contraindicated in the setting of bradycardia or AV block and should be ...

Cardiovascular manifestations include hypertension, bradycardia, shortened QT interval, and left ventricular hypertrophy. [1] ...

Bradycardia * Sudden death Older infants may manifest the following signs and symptoms in addition to those noted for neonates: ...

Beta-blockers should be avoided in those congenital cases in which bradycardia is a prominent feature. Beta-blockers are ... Pacemaker implantation is effective in cases that are associated with heart block or bradycardia. ICDs are indicated in cases ... Isoproterenol can be used in bradycardia-dependent torsade that usually is associated with acquired long QT syndrome (pause- ... Patients with acquired long QT syndrome usually develop torsade during periods of bradycardia. The most common causes of ...

Bradycardias, AV block. ECG presentations associated with poor outcome: AF, QT-interval prolongation, ST-segment and T-wave ... Bradycardias, AV block. ECG presentations associated with poor outcome: AF, QT-interval prolongation, ST-segment and T-wave ... 13] One prominent cause of bradycardia/asystole or various cardiac dysrhythmias is hyperkalemia. First-line treatment of acute ...

Bradycardia. Flat T waves, U waves, ST-segment depression. Tall T waves ...

Bradycardia * First-, second-, or third-degree atrioventricular (AV) block * Any type of bundle-branch block ...

Hyponatremia is defined as serum sodium (Na) concentration of less than 135 mEq/L. Plasma Na plays a significant role in plasma osmolality and tonicity (serum osmolarity = 2Na + Glu/18 + BUN/2.