To the Editor: As the time for the centennial of the Kielland’s forceps approaches, one ponders: will this elegant instrument have its demise before its 100th anniversary? Introduced in 1915 by Dr Christian Kielland, a Norwegian obstetrician, for the “deep transverse arrest,” it evolved into the instrument of choice for arrest of descent with occipito-transverse or occipito-posterior position of a cephalic presentation.1.Patterson W.R. The Kielland forceps.Can Med Assoc J. 1928; 18: 177-180PubMed Google Scholar The malpresenting baby would often not be large, as opposed to a non-malpresenting baby that would usually be large to have arrested in the first place. With a high likelihood of failure with attempts at manual rotation or a rotational vacuum, the Kielland’s forceps became an ideal instrument for facilitating a vaginal birth for fetal malposition in cephalic presentation. The relatively straight handle with a gentle backward pelvic curve and a sliding lock were ingenious additions to the obstetric forceps design, allowing easy application to a severely asynclitic head. Further, this design, when combined with the Scanzoni manoeuvre, allowed rotation of up to 180 degrees within the tight constraints of the maternal pelvis due to a relatively small circle of rotation. Given the usual normal-sized baby being delivered, once the head could be successfully rotated, most skilled users would agree that the risk of a significant perineal laceration was small. However, the last decade has witnessed a rapid decline in the use of Kielland’s forceps.2.Ramin S.M. Little B.B. Gilstrap 3rd., L.C. Survey of forceps delivery in North America in 1990.Obstet Gynecol. 1993; 81: 307-311PubMed Google Scholar, 3.Vacca A. Current obstetric training programs are unlikely to provide registrars with sufficient skill in the safe use of Kielland forceps.Aust N Z J Obstet Gynaecol. 2000; 40: 226-227Crossref PubMed Google Scholar This can be attributed to concerns regarding poor neonatal outcomes that were associated with the use of Kielland’s forceps.4.Patel R.R. Murphy D.J. Forceps delivery in modern obstetric practice.BMJ. 2004; 328: 1302-1305Crossref PubMed Scopus (95) Google Scholar In the litigious field of obstetrics, it was tempting to give up a controversial practice for the easier option, the Caesarean section. Given the medico-legal climate, although North American centres were slow in adopting the use of Kielland’s forceps, they were quicker to let it go. However, more recent evidence suggests that the concerns regarding neonatal outcomes may have been misplaced. A retrospective review of deliveries at a tertiary care centre over a four-year period compared the use of Kielland’s forceps, rotational ventouse and emergency Caesarean section.5.Tempest N. Hart A. Walkinshaw S. Hapangama D.K. A re-evaluation of the role of rotational forceps: retrospective comparison of maternal and perinatal outcomes following different methods of birth for malposition in the second stage of labour.BJOG. 2013; 120: 1277-1284Crossref PubMed Scopus (72) Google Scholar With a 25% Caesarean section rate and a 13% operative vaginal delivery rate, a cohort of approximately 1300 cases that reached full cervical dilatation with fetal malposition was identified. With an intention-to-treat analysis, 80% had an attempted Kielland’s rotation, 8% had an attempted rotational ventouse, and 11% had an emergency Caesarean section. The likelihood of needing a Caesarean section was eight-fold higher if a ventouse was used as opposed to the Kielland’s forceps. Failure of delivery with Kielland’s occurred in 4% of cases. Other than a trend towards an increased rate of shoulder dystocia, no increase in adverse outcomes was noted.5.Tempest N. Hart A. Walkinshaw S. Hapangama D.K. A re-evaluation of the role of rotational forceps: retrospective comparison of maternal and perinatal outcomes following different methods of birth for malposition in the second stage of labour.BJOG. 2013; 120: 1277-1284Crossref PubMed Scopus (72) Google Scholar However, obstetric practice changed before the evidence relating to the long-term outcomes of babies could become available,6.Kotaska A. Menticoglou S. Gagnon R; SOGC Maternal Fetal Medicine Committee. Vaginal delivery of breech presentation. SOGC Clinical Practice Guideline no. 226, June 2009.J Obstet Gynaecol Can. 2009; 31 (567–78): 557-566Abstract Full Text PDF PubMed Scopus (72) Google Scholar leaving a generation of obstetricians who are untrained in the science and art of a rotational forceps delivery. With increasing Caesarean section rates and associated maternal morbidity and mortality, we need ongoing efforts to find viable alternatives to Caesarean section. This leads to the question: is it time to revive the Kielland’s forceps delivery before it is too late? Or should we helplessly watch this endangered species disappear and become a part of the annals of the history of medicine?
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