fetal bradycardia


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Related to fetal bradycardia: fetal tachycardia

bradycardia

 [brad″e-kahr´de-ah]
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 ?
Most cases of fetal bradycardia need little or no intervention and resolve on their own, but it's difficult to tell which will be transient and which may be fatal.
ESTATE'S CLAIM The nurses did not report decelerations to the ObGyn, and they were slow to notify him of the fetal bradycardia.
Electronic external fetal heart-rate tracing showed fetal bradycardia at 60-70 beats per minute (bpm).
In interpreting fetal bradycardia, the obstetrician should keep in mind that it often comes with decreased fetal heart rate variability.
Studies have shown that while exercise does increase the fetal heart rate or occasionally causes fetal bradycardia, this is inconsequential as long as the fetus and mother are otherwise healthy.
Fetal bradycardia and variable decelerations occurred almost twice as often in the nuchal cord group (P < .
Ten minutes before birth, the fetal heart tracing ended; a sonogram showed fetal bradycardia and prompted an emergency vacuum extraction.
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.
Concerns have been raised about the possibility of fetal bradycardia following paracervical block, and there have been isolated reports of fetal or neonatal deaths attributed to the use of paracervical blocks.
A review of 70,000 patients treated with paracervical block revealed that transient fetal bradycardia associated with the block did not indicate fetal distress.
Fetal bradycardia and preterm labor have been linked to rewarming a hypothermic patient.