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Biomedical subjects

I Meizner

Publications and source records attributed to I Meizner.

At least 127 records · Page 7Linked to original sources
PubMed1986

Prenatal ultrasonic diagnosis of anterior abdominal wall defects.

Nine cases of different types of anterior abdominal wall defects were diagnosed prenatally by ultrasound: gastroschisis (one case), omphalocele (five cases), exstrophy of the cloaca (one case) and the extreme form of prune belly syndrome (two cases). The ultrasonic features of gastroschisis and omphalocele are well recognized by most experienced sonographists. The ultrasonic prenatal diagnosis of exstrophy of the cloaca has not been reported previously and it is a very rare entity. The anterior abdominal wall defect is larger than in omphalocene and is located infraumbilically. Fetal ascites and a lumbosacral myelomeningocele are present as well. The extreme form of prune belly syndrome is associated with the absence of the abdominal wall musculature and marked dilatation of the urinary tract, presented ultrasonically as multiple large cysts occupying the distended fetal abdominal cavity. The differential diagnosis of these entities and guidelines for their correct prenatal ultrasonic diagnosis will be discussed.

Abdominal Muscles↗
PubMed1986

The impact of prenatal care on the outcome of pregnancy.

In a 12-months' prospective project all women delivering at the Soroka Medical Center, Beer-Sheba, Israel, were studied with regard to the type of prenatal care (P.C.) and the outcome of pregnancy. The Soroka Medical Center is the sole medical facility providing obstetric and neonatal services to the 300,000 inhabitants of the region. Prenatal care is delivered by a uniform network of 70 community-based stations. The availability, type and quality of services were uniform for all women and were not altered throughout the study period. The project encompassed 7308 deliveries. 2154 Bedouin women were excluded in order to avoid possible bias due to cultural and genetic characteristics. Data regarding 5154 Jewish women were analysed. Perinatal mortality was inversely proportional to the number of prenatal contacts. The uncorrected mortality rates were 12.7% in women entirely lacking P.C. and 6.2%, 1.9% and 1.0% in patients who had 1-6, 7-10 and 11 or more prenatal contacts respectively. The low-birthweight rate was significantly increased in women lacking prenatal care (22.8%) or having rudimentary care (17.4%) as compared to those who had 11 or more prenatal contacts with medical personnel (5.9%). Prenatal care reduced neonatal morbidity as expressed by the length of hospitalization, the frequency of infants with multiple diagnoses and the incidence of specific pathologies such as respiratory distress syndrome, light for dates and asphyxia. The incidence of some complications of pregnancy (abruptio placentae, premature labor, PROM) was significantly increased in women lacking P.C. or having inadequate P.C. (1-6 prenatal contacts). Moreover, lack of prenatal care was clearly connected with high-risk delivery, thus increasing the danger to the baby. It is suggested that many adverse effects of various socio-economic, genetic and general health factors may be diminished by proper prenatal care coupled with adequate obstetric and neonatal services.

Adult↗
PubMed1986

Prenatal ultrasonic diagnosis of fetal thoracic and intrathoracic abnormalities.

Seventeen cases of different types of fetal thoracic and intrathoracic abnormalities were diagnosed prenatally by ultrasound: nonimmune hydrops (5 cases), diaphragmatic hernia (3), Potter's syndrome (3), chylothorax (1), exstrophy of the cloaca (1), the extreme form of prune-belly syndrome (2), cystic hygroma (1) and short rib polydactyly syndrome (Majevski type) (1 case). The ultrasonic features of nonimmune hydrops, diaphragmatic hernia, Potter's syndrome and cystic hygroma are well recognized by most experienced sonographers. The ultrasonic prenatal diagnosis of exstrophy of the cloaca, a very rare entity, has not been reported previously. The condition consists of a large infraumbilical anterior abdominal wall defect, lumbosacral myelomeningocele, and fetal ascites. The extreme form of prune-belly syndrome is associated with the absence of the abdominal wall musculature and marked dilatation of the urinary tract, presented ultrasonically as multiple large cysts occupying the distended fetal abdominal cavity. In exstrophy of the cloaca, prune-belly syndrome, Potter's syndrome and short rib polydactyly syndrome the chest abnormality is similar-extreme shortening of the thoracic cage, which has various causes. The differential diagnosis of all these entities and guidelines for their correct prenatal ultrasonic diagnosis are presented.

Diaphragmatic Eventration↗
PubMed1985

Prenatal ultrasonic diagnosis of cloacal exstrophy.

Cloacal exstrophy is a rare malformation, but most of its prominent structural features can be observed by detailed ultrasonography. Reported is a case in which the anomaly was diagnosed on prenatal scanning.

Abdominal Muscles↗
PubMed1984

Artificial hydramnion. A simple method of verifying premature rupture of the membranes.

Accurate diagnosis of premature rupture of the membranes is of paramount importance for proper treatment. Currently available methods of diagnosing this complication of pregnancy are not satisfactory. A new, simple, noninvasive method occludes the amniotic outflow with a cervical cap on the external cervical os, permitting the formation of an artificial hydramnion. Observation of this hydramnion formation using ultrasonography and the release of accumulated amniotic fluid after removal of the cap are strong evidence of the existence of premature rupture of the membranes. We used this method in 17 cases.

Adult↗
PubMed1983

Clinical significance of sinusoidal fetal heart rate pattern.

Sinusoidal fetal heart rate pattern has been regarded as a sign of fetal jeopardy and 92 instances of this pattern were analysed. The morphologically different major and minor sinusoidal patterns were assessed with regard to their clinical significance as predictors of fetal compromise. There were 83 instances of minor sinusoidal pattern (amplitude of oscillation less than 25 beats/min) with only one antepartum fetal death. Major sinusoidal pattern (amplitude of oscillation greater than 25 beats/min) was diagnosed in nine patients and in six of them the fetus died before, during or after delivery. It is concluded that patients with minor sinusoidal heart rate patterns may be managed expectantly, whereas on the rare occasion when a major sinusoidal pattern is seen expeditious delivery is justified.

Apgar Score↗
PubMed1982

Is end-stage deceleration of the fetal heart ominous?

End-stage deceleration (ESD) defined as deep and sustained fetal bradycardia during the second stage of labour was observed in 55 patients. Fetal well-being and neonatal outcome were assessed with fetal-scalp pH, umbilical-vein pH and 1-min Apgar score values. Only six infants with pathological fetal heart-rate patterns before ESD had a 1-min Apgar score of less than 7 and an acidotic umbilical-vein pH. The remaining 49 babies were born in excellent condition, although when ESD persisted for more than 15 min umbilical-vein pH decreased.

Adult↗
PubMed1981

Cesarean section--a review of two annual periods separated by a ten-year interval.

In the Soroka Medical Center in Beer-Sheba during the two annual periods 1969 and 1979, 693 cesarean sections were performed, of which 633 are presented. The main reasons for the rise in cesarean section rate from 2.6% in 1969 to 8.0% in 1979 were evaluated. Cesarean sections were performed more often for fetal indications during 1979 than in 1969, reflecting the change in our approach to the management of the fetus at risk. The increase in the cesarean section rate was concomitant with a drop in the perinatal mortality from 23/1000 in 1969 to 13.1/1000 in 1979.

Breech Presentation↗