bradycardia

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Related to fetal bradycardia: fetal tachycardia

bradycardia:

see arrhythmiaarrhythmia
, disturbance in the rate or rhythm of the heartbeat. Various arrhythmias can be symptoms of serious heart disorders; however, they are usually of no medical significance except in the presence of additional symptoms.
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Bradycardia

 

decrease in frequency of heart contractions to less than 60 beats per minute.

Bradycardia may be found as a normal, constitutionally conditioned phenomenon in perfectly healthy persons, in well-trained athletes, and as one of the symptoms in many diseases. More often, bradycardia is observed as a result of organic disturbances of auriculoventricular conductivity—heart blockage, myocardial infarction, and inflammatory (infectious or toxic) diseases of the heart muscle. Complete blockage of the heart with a pulse frequency of 30–40 beats per minute or less threatens brain complications: loss of consciousness, convulsions, and cessation of heart activity. Prophylaxis and treatment are directed toward removal of the cause.

bradycardia

[¦brād·i¦kärd·ē·ə]
(medicine)
Slow heart rate.
References in periodicals archive ?
Searle reported that the following serious adverse events were reported following off-label use of Cytotec[R] in pregnant women: maternal or fetal death; uterine hyperstimulation, rupture or perforation requiring uterine surgical repair, hysterectomy or salpingooophorectomy; amniotic fluid embolism; severe vaginal bleeding, retained placenta, shock, fetal bradycardia and pelvic pain.
Fetal bradycardia after paracervical block: correlation with fetal and maternal blood levels of local anesthetic (mepivacaine).
Persistent fetal bradycardia (FHR below 80 bpm) is associated with fetal hypoxemia and asphyxia (20).
Reserve true "crash" C-sections for cases of sustained fetal bradycardia of 60 beats per minute (BPM) or less.
The Searle letter said misoprostol use in pregnancy is linked to possible adverse outcomes: maternal or fetal death, uterine hyperstimulation, uterine rupture or peforation, hysterectomy, salpingo-oophorectomy, amniotic fluid embolism, severe vaginal bleeding, retained placenta, shock, fetal bradycardia, and pelvic pain.
Maternal respiratory depression, allergic reaction, hypotension, and transient fetal bradycardia are other potentially serious complications.
SEVERAL HOURS AFTER A WOMAN'S LABOR BEGAN, fetal bradycardia developed precipitously.
lapses, the 35 frank prolapses were usually diagnosed by fetal bradycardia or severe variables.
health care workers shortly before mifepristone was approved, reminding them that misoprostol is contraindicated in pregnancy Off-label use of misoprostol in pregnancy has been linked to maternal or fetal death and other adverse events, including fetal bradycardia, amniotic fluid embolism, severe vaginal bleeding, and retained placenta, according to the letter.
The significance of fetal bradycardia Am J Obstet Gynecol 1981; 139: 194-8.
The presence of a nuchal cord is often cited as a major cause of fetal distress, as evidenced by meconium stained amniotic fluid and/or fetal bradycardia or tachycardia 10,13,15.