fetal bradycardia

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Related to fetal bradycardia: fetal tachycardia


slowness of the heartbeat, so that the pulse rate is less than 60 per minute. This can occur in normal persons, particularly during sleep; trained athletes also usually have slow pulse and heart rates. adj., adj bradycar´diac.
fetal bradycardia a fetal heart rate of less than 120 beats per minute, generally associated with hypoxia; it is usually due to placental insufficiency; it may also result from transfer of local anesthetics or beta-adrenergic blocking agents, and rarely to heart block associated with congenital heart disease or maternal collagen vascular disease.
nodal bradycardia bradycardia in which the stimulus of the heart's contraction arises in the atrioventricular node or common bundle.
sinoatrial bradycardia (sinus bradycardia) a slow sinus rhythm, with a heart rate of less than 60 beats per minute in an adult; it is common in young adults and in athletes but is also a manifestation of some disorders.
bradycardia-tachycardia syndrome any cardiac dysrhythmia characterized by alternating slow and fast heart rates, often resulting in hemodynamic compromise. See also sick sinus syndrome.

fe·tal bra·dy·car·di·a

a fetal heart rate of less than 120 beats/minute.

fetal bradycardia

an abnormally slow fetal heart rate, usually below 100 beats/min.

fetal bradycardia

Persistent fetal heart rate slower than 110 beats per minute.
See also: bradycardia
References in periodicals archive ?
For fetal bradycardia in the second stage, with a fetal heart rate between 60 and 80 BPM, assess heart rate variability.
The most frequent (more than 5%) side effects seen in clinical trials were hypotension (low blood pressure); fetal bradycardia (slow fetal heart rate); nausea; bradycardia; vomiting; paresthesia (tingling in the hands or feet) and back pain.
In interpreting fetal bradycardia, the obstetrician should keep in mind that it often comes with decreased fetal heart rate variability.
This turn of the old aphorism "don't change horses in the middle of a stream" obviously does not apply to a prolonged deceleration or what we formally call a fetal bradycardia.