Shoulder Dystocia
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Am J Obstet Gynecol. 2004
Sep;191(3):911-6.
Episiotomy versus fetal manipulation in managing severe
shoulder dystocia: a comparison of outcomes.
Gurewitsch ED, Donithan M, Stallings SP, Moore PL,
Agarwal S, Allen LM, Allen RH.
Department of Gynecology and Obstetrics, Johns Hopkins
University, School of Medicine, Baltimore, Md 21287,
USA. egurewi@jhmi.edu
Objectives:
In severe shoulder dystocia, when initial
maneuvers fail, either episiotomy or fetal manipulation
(Rubin, Woods' screw, or posterior arm release) is
recommended. We sought to compare maternal and neonatal
outcomes between severe shoulder dystocia deliveries
managed with episiotomy versus fetal manipulation. STUDY
Design:
We identified severe shoulder dystocia
deliveries from three databases: all shoulder dystocia
deliveries (1993-2003 and 1994-1997) from two teaching
institutions and litigated cases of shoulder dystocia-associated
permanent brachial plexus palsy from multiple U.S.
institutions. Pair-wise comparisons were made among
three groups of deliveries: those managed by fetal
manipulation without episiotomy (fetal
manipulation-only), those managed by episiotomy without
fetal manipulation (episiotomy-only), and those managed
with both (episiotomy + fetal manipulation). Rates of
brachial plexus palsy, neonatal depression, and anal
sphincter trauma were compared among groups using chi 2
, with significance at P < .05.
Results:
Among
episiotomy-only, 13 of 22 (59.1%) sustained brachial
plexus palsy, compared with 20 of 57 (35.1%) among fetal
manipulation-only (P = .05). Twenty-eight of 48 (58.3%)
in episiotomy + fetal manipulation had brachial plexus
palsy, which did not differ from episiotomy-only (P =
.95) but was higher than fetal manipulation-only (P =
.02), suggesting that the addition of episiotomy
conferred no benefit in averting neonatal injury. Anal
sphincter trauma was significantly more common among
episiotomy-only and episiotomy + fetal manipulation,
compared with fetal manipulation-only.
Conclusion:
In
severe shoulder dystocia, if fetal manipulation can be
performed without episiotomy, severe perineal trauma can
be averted without incurring greater risk of brachial
plexus palsy.