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P Bergsjo

Publications and source records attributed to P Bergsjo.

At least 19 recordsLinked to original sources
PubMed1996

The occurrence of placental abruption in Norway 1967-1991.

STUDY OBJECTIVE: To study secular trends of placental abruption (PA), the effects of demographic variables and the use of cesarean section (CS) associated with PA. DESIGN: A population based cohort study. SETTING: The Medical Birth Registry of Norway. PATIENTS: 9,592 cases of PA of a total of 1,446,154 births notified, i.e. all births in Norway 1967-1991. MAIN RESULTS: The PA proportion was 6.6 per 1000 births of a gestational age of 16 weeks or more, ranging from 5.3 in 1971 to 9.1 in 1990. Birth order two had the lowest proportion and it increased by maternal age. The PA proportion decreased by gestational age from 86.4 per 1000 below 28 weeks to 3.4 in term pregnancies. The PA proportion per 10,000 pregnancies at risk increased from 1.3 in the 28th week to 14.1 in the 42nd week. A secular trend of a decreasing but still high relative risk of PA in SGA-births at any gestational age increased from 1967 through 1991. The relative risk of PA of Apgar score <7 after five minutes, adjusted for gestational age, was 7.8. CONCLUSIONS: Inspite of an increasing CS rate, an increasing proportion of PA was noted from 1967 through 1991. The proportion was lowest for birth order two and increased by maternal age. To an increasing extent, PA births were centralized. SGA, prematurity and asphyxia were major problems associated with PA. A tendency towards larger infants and a decreasing relative risk of PA in SGA-births might be attributable to improvements in antenatal care.

Abruptio Placentae↗
PubMed1996

Perinatal mortality and case fatality after placental abruption in Norway 1967-1991.

STUDY OBJECTIVE: To study national secular trends in Norway of perinatal mortality and case fatality to placental abruption (PA) and associations with cesarean section (CS). DESIGN: A population based cohort study. SETTING: The Medical Birth Registry of Norway. PATIENTS: 9,592 cases of placental abruption (PA) of a total of 1,446,154 births notified in Norway 1967-1991. MAIN MEASURES: Comprehensive perinatal mortality (all stillbirths > or = 16 weeks of gestation and early neonatal deaths) and standard perinatal mortality (all stillbirths > or = 28 weeks of gestation and all early neonatal deaths). Case fatality rate. MAIN RESULTS: From 1967 through 1991, the standard perinatal mortality rate due to placental abruption (PA) in Norway decreased from 2.5 per 1000 births (13.5% of all deaths) in 1967 to 0.9 (13.2%) in 1991. The comprehensive perinatal mortality rate due to placental abruption (PA) in Norway decreased from 3.2 to 1.7 per 1000. The proportion of all perinatal deaths due to PA increased from 11.4% in 1967-1971 to 217.0 in 1987-91 and decreased in all gestational age categories. Case fatality in PA with cesarean section (CS) was generally lower than in PA without CS, regardless of gestational age. CONCLUSIONS: Placental abruption is an important cause of perinatal mortality in Norway. Our results are in favor of an active approach with frequent use of cesarean section, also at lower gestational ages. The decreasing case fatality rate by year of birth in all gestational age groups may be attributed to improved obstetric and perinatal care.

Abruptio Placentae↗
PubMed1996

Hemoglobin concentration in pregnant women. Experience from Moshi, Tanzania.

BACKGROUND: Anemia in pregnancy is common in Tanzania. Previous information on distribution of hemoglobin concentration in total populations is scarce. METHODS: Standard measurement of hemoglobin concentration in consecutive first visit attenders at the antenatal care clinic in Moshi, 1991-1994, for a total of 1800, divided into three series of 600 each. RESULTS: Hemoglobin concentrations ranged from 41 to 146 g/l, mean 96.9 and s.d. 16.3. For international comparison, 74.5% were below 110 g/l and 7.0% below 70 g/l. The median was 97.0; other percentiles were 10th: 75.0, 90th: 116.0. The distribution did not change with mother's age, but in the years 1991 and 1994 there were more low hemoglobin values than in the intervening years. CONCLUSIONS: Low hemoglobin concentrations are prevalent among pregnant women in Moshi, Tanzania. Seven percent were found to have severe anemia, defined as a hemoglobin concentration below 70 g/l.

Anemia↗
PubMed1976

Growth of the fetal skull, with special reference to weight-for-dates of the newborn child.

Two growth curves of the fetal biparietal diameter are presented. One is prospective, based on the last menstrual period, while the other is retrospective, calculated from the date of birth. The prospective curve shows a slight decline in average values following the week 42 of gestation. This is thought not to reflect a true shortening of the biparietal diameter in the single fetus, since serial measurements in single fetuses show growth up to the time of delivery. Individual growth curves, grouped according to the weight-for-dates of the newborn child, show a trend towards longer biparietal diameters in the larger fetuses. Serial measurements, preferably starting before week 30, appear to be a good help in predicting birth weight, but growth rates without regard to the actual measurement values were of little prognostic value in the present material.

Birth Weight↗
PubMed1975

Dysmenorrhea in industrial workers.

In two Norwegian industrial companies 234 women of menstruating age were examined by the industrial nurse with regard to menstrual complaints. Every second woman experienced pain, 23% had consulted a doctor previously, about 30% had to stay in bed, and about 30% had been absent from work recently due to dysmenorrhea. Although pain was prevalent in all age groups, there were age-specific differences in other complaints, such as headache and depression, which were more frequent among the older women. In a selected group of 32 women with severe complaints, the history and gynecological examination indicated secondary dysmenorrhea in only a few cases. Hormonal assays and endometrial biopsy indicated anovulatory cycles in 4 out of 12 women, in spite of dysmenorrhea.

Adolescent↗