[The perinatal risk factors and periventricular leukomalacia (PVL) in premature infants--relationship between fetal heart rate decelerations and PVL].
Periventricular leukomalacia (PVL) has recently been recognized as an important risk factor of neurological impairment in premature infants. We studied 29 PVL cases on perinatal risk factors comparing with a non-PVL matched control group retrospectively. Variable decelerations were more frequently observed with statistical significance in the PVL group in the intrapartum period. Then another study was conducted to evaluate the relationship between fetal heart rate (FHR) decelerations and cystic PVL prospectively. Since January 1993 through December 1994 we studied 209 low birth weight infants (31.1 +/- 3.2 weeks, 1,424 +/- 419 g) who had been subjected to intrapartum FHR monitoring and postnatal sonographic intracranial examinations sequentially every 7 days until discharge. Cystic PVL was detected in 6 of 209 cases (2.9%) and occurred only in infants who had revealed severe variable deceleration or prolonged deceleration (6/37, 16%) in intrapartum FHR monitoring. We conclude that in low birth weight infants intrapartum severe variable deceleration or prolonged deceleration might play a causal role in cystic PVL.
Ibara
S
S
Department of Obstetrics & Gynecology, Miyazaki Medical College.
Ikenoue
T
T
Sameshima
H
H
Asano
H
H
Maruyama
H
H
Tokunaga
S
S
Maeda
T
T
Maruyama
Y
Y
Nakata
T
T
Matsuda
Y
Y
Hatae
M
M
Kuraya
K
K
Nakamura
T
T
D001919:Bradycardia / Q000150:complications; D005260:Female; D005315:Fetal Diseases / Q000503:physiopathology; D006340:Heart Rate, Fetal; D006801:Humans; D007231:Infant, Newborn; D007969:Leukomalacia, Periventricular / Q000209:etiology*; D011247:Pregnancy; D012189:Retrospective Studies; D012307:Risk Factors