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Biomedical subjects

R B Johanson

Publications and source records attributed to R B Johanson.

6 recordsLinked to original sources

A multicentre study of perinatal mortality in Nepal.

A prospective survey was carried out in two Kathmandu hospitals and two rural districts to establish urban and rural perinatal mortality rates (PNMRs) for these four centres in Nepal and to ascertain the causes of perinatal mortality. All perinatal deaths occurring over a 1-year period in the four centres were included (during which time there was a total of 14,967 births). Cause of death was established by contemporary review of hospital case records or by structured questionnaire ('verbal autopsy') in the rural areas. The PNMRs in the hospitals were 48.0 and 23.7 per thousand total births respectively, whilst those of the rural settings were 96.2 and 42.5 per thousand births. Perinatal asphyxia, low birthweight and infection were the most common causes but many of the deaths were unexplained. The high mortality rates were felt to reflect the difficult circumstances of childbirth in Nepal. It was concluded that a number of interventions would appear appropriate, but that these should be introduced in a scientific manner.

Adult

Worldwide survey of assisted vaginal delivery.

OBJECTIVES: To ascertain which instruments are most commonly used for assisted vaginal delivery. METHODS: A postal survey in which 1411 questionnaires were sent to major obstetric centers worldwide. RESULTS: Over 60% (305/508) of the respondents indicated willingness to participate in a multicenter randomized controlled trial between the two instruments. CONCLUSIONS: The forceps remained popular in most of the 'English-speaking' countries, as well as in Eastern Europe and South America. The ventouse was most popular in Africa, Asia and Northern Europe.

Data Collection

Effect of post-delivery care on neonatal body temperature.

A prospective observational study of post-delivery care and neonatal body temperature, carried out at Kathmandu Maternity Hospital, was followed by a randomized controlled intervention study using three simple methods for maintaining body temperature. There were 500 infants in the initial observation study and 300 in the intervention study. In the observation study, 85% (420/495) of infants had temperatures < 36 degrees C at 2 h and nearly 50% (198/405) had temperatures < 36 degrees C at 24 h (14% were < 35 degrees C). Most of the infants who were cold at 24 h had initially become cold at the time of delivery (only seven infants had been both well dried and wrapped). In the intervention study, all infants were dried and wrapped before random assignment to one of the three methods: the "kangaroo" method, the traditional "oil massage" or a "plastic swaddler". All three were found to be equally effective. Overall, 38% (114/298) of the infants had temperatures < 36 degrees C at 2 h and 18% (41/231) at 24 h (when none was < 35 degrees C).

Body Temperature