A national survey of anaesthetic and peri-operative management of category-1 caesarean section was sent to 245 consultant-led maternity units. There was a 70% response rate. The median (IQR [range]) general anaesthetic rate was 51% (29%-80% [6%-100%]), 12% (9%-16% [3%-93%]), 4% (2%-5% [<1%-18%]), for category-1 caesarean section, categories 1-3 (non-elective ⁄ emergency) and category-4 (elective) caesarean section, respectively. The main operating theatre for caesarean section is on the delivery suite in 151 (88%) units, and 112 (66%) units also have a second theatre in the same location. One hundred and thirty-nine (81%) use the standard urgency classification described in the NICE caesarean section guideline. However, only 72 (42%), 24 (14%), and 16 (9%) units comply with this guideline's recommended decision-delivery intervals for category-1 ( £ 30 min), category-2 ( £ 30 min) and category-3 ( £ 75 min) caesarean sections, respectively. Practice in the smaller units was similar to that in the larger units, although there was less availability of a dedicated anaesthetist, intra-uterine resuscitation guidelines and operating theatres on the delivery suite in the smaller units. A four-point classification of urgency of caesarean section was described by Lucas et al. [1], and was recommended for national use by the National Institute for Clinical Excellence (NICE) in 2004 [2]. 'Emergency' and 'elective' caesarean section equate to categories 1-3 and category 4 respectively. Category 1, the most urgent, is defined as 'immediate threat to life of woman or fetus'. The relative risk of maternal death for category-1 caesarean section was observed to be 15 times that of category-3 caesarean section, although it is not clear whether this is due to pre-existing maternal pathology, or the indication for caesarean section [3]. In emergency situations, there is a greater need for clear communication, teamwork and consistent practice. We wished to establish the organisational factors including staffing, anaesthetic practice and the existence of specific guidelines that may have an impact on management of category 1 caesarean sections in consultant-led obstetric units in the UK.
MethodsA questionnaire was developed by the authors and reviewed by the Obstetric Anaesthetists' Association's Audit Subcommittee. The Subcommittee approved this as a national survey (number 63 -http://www.oaaanaes.ac.uk). Contact details for lead obstetric anaesthetists in 245 maternity units were provided and a questionnaire was sent by post (Appendix). The questionnaire asked about labour ward and operating Anaesthesia, 2010Anaesthesia, , 65, pages 362-368 doi:10.1111Anaesthesia, /j.1365Anaesthesia, -2044Anaesthesia, .2010
362Journal compilation Ó 2010 The Association of Anaesthetists of Great Britain and Ireland theatre organisation, staffing levels, the categorisation of urgency used for caesarean section in each unit, the choice of anaesthetic used according to urgency, and the existence of guidelines in each unit for anaesthesia, intraute...