Abstract
Techniques of fetal monitoring, including fetal blood sampling in utero, were employed to study the physiological effects of acute maternal carbon monoxide intoxication upon the fetal rhesus monkey. 9 term pregnant female monkeys were exposed to 0.1 to 0.3% inspired CO over 1 to 3 hr. The mothers tolerated carboxyhemoglobin (COHb) levels exceeding 60% without clinical sequelae. The fetuses promptly developed profound hypoxia upon exposure of the mothers to CO. However, the fetal COHb levels rose only gradually over the 1 to 3 hr and thus contributed only slightly to the development of the early fetal hypoxia. Fetal hypoxia was associated with bradycardia, hypotension, and metabolic and, later, respiratory acidosis. A close correlation was noted between the severity of intrauterine hypoxia and the appearance of brain damage. Severe brain damage (brain swelling associated with hemorrhagic necrosis of the cerebral hemispheres) appeared only in those fetuses whose arterial O2 content had fallen below 2.0 ml/100 ml for at least 45 min during the maternal CO intoxication.
| Original language | English |
|---|---|
| Pages (from-to) | 309-317 |
| Number of pages | 9 |
| Journal | Acta Obstetricia et Gynecologica Scandinavica |
| Volume | 53 |
| Issue number | 4 |
| State | Published - Dec 1 1974 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Obstetrics and Gynecology
Cite this
Fetal brain damage following maternal carbon monoxide intoxication : an experimental study. / Ginsberg, Myron; Myers, R. E.
In: Acta Obstetricia et Gynecologica Scandinavica, Vol. 53, No. 4, 01.12.1974, p. 309-317.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fetal brain damage following maternal carbon monoxide intoxication
T2 - an experimental study
AU - Ginsberg, Myron
AU - Myers, R. E.
PY - 1974/12/1
Y1 - 1974/12/1
N2 - Techniques of fetal monitoring, including fetal blood sampling in utero, were employed to study the physiological effects of acute maternal carbon monoxide intoxication upon the fetal rhesus monkey. 9 term pregnant female monkeys were exposed to 0.1 to 0.3% inspired CO over 1 to 3 hr. The mothers tolerated carboxyhemoglobin (COHb) levels exceeding 60% without clinical sequelae. The fetuses promptly developed profound hypoxia upon exposure of the mothers to CO. However, the fetal COHb levels rose only gradually over the 1 to 3 hr and thus contributed only slightly to the development of the early fetal hypoxia. Fetal hypoxia was associated with bradycardia, hypotension, and metabolic and, later, respiratory acidosis. A close correlation was noted between the severity of intrauterine hypoxia and the appearance of brain damage. Severe brain damage (brain swelling associated with hemorrhagic necrosis of the cerebral hemispheres) appeared only in those fetuses whose arterial O2 content had fallen below 2.0 ml/100 ml for at least 45 min during the maternal CO intoxication.
AB - Techniques of fetal monitoring, including fetal blood sampling in utero, were employed to study the physiological effects of acute maternal carbon monoxide intoxication upon the fetal rhesus monkey. 9 term pregnant female monkeys were exposed to 0.1 to 0.3% inspired CO over 1 to 3 hr. The mothers tolerated carboxyhemoglobin (COHb) levels exceeding 60% without clinical sequelae. The fetuses promptly developed profound hypoxia upon exposure of the mothers to CO. However, the fetal COHb levels rose only gradually over the 1 to 3 hr and thus contributed only slightly to the development of the early fetal hypoxia. Fetal hypoxia was associated with bradycardia, hypotension, and metabolic and, later, respiratory acidosis. A close correlation was noted between the severity of intrauterine hypoxia and the appearance of brain damage. Severe brain damage (brain swelling associated with hemorrhagic necrosis of the cerebral hemispheres) appeared only in those fetuses whose arterial O2 content had fallen below 2.0 ml/100 ml for at least 45 min during the maternal CO intoxication.
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UR - http://www.scopus.com/inward/citedby.url?scp=0016285377&partnerID=8YFLogxK
M3 - Article
C2 - 4440458
AN - SCOPUS:0016285377
VL - 53
SP - 309
EP - 317
JO - Acta Obstetricia et Gynecologica Scandinavica
JF - Acta Obstetricia et Gynecologica Scandinavica
SN - 0001-6349
IS - 4
ER -