Mj. Renfrew et al., PRACTICES THAT MINIMIZE TRAUMA TO THE GENITAL-TRACT IN CHILDBIRTH - ASYSTEMATIC REVIEW OF THE LITERATURE, Birth, 25(3), 1998, pp. 143-160
Background: Trauma to the genital tract commonly occurs at birth, and
can cause short- and long-term morbidity. Clinical measures to reduce
its occurrence have not been fully identified. Methods: A systematic r
eview of the English language literature was conducted to describe the
current state of knowledge on reduction of genital tract trauma befor
e planning a large randomized controlled trial of ways to prevent such
trauma. Randomized trials and other published reports were identified
from relevant databases and hand searches. Studies were reviewed and
assessed using a structured format. Results: A total of 77 papers and
chapters were identified and placed into 5 categories after critical r
eview: 25 randomized trials, 4 meta-analyses, 4 prospective studies, 3
6 retrospective studies, and 8 descriptions of practice from textbooks
. The available evidence is conclusive in favor of restricted use of e
pisiotomy. The contribution of maternal characteristics and attitudes
to intact perineum has not been investigated. Several other topics war
rant further study, including maternal position, style of pushing, and
antenatal perineal massage. Strong opinions and sparse data exist reg
arding the role of hand maneuvers by the birth attendant for perineal
management and birth of the baby. This became the topic of the planned
randomized controlled trial, which was completed; results will be pub
lished soon. Conclusions: The case for restricting the use of episioto
my is conclusive. Several other clinical factors warrant investigation
, including the role of hand maneuvers by the birth attendant in preve
nting birth trauma. A large randomized controlled trial will report on
this topic.