Analgesia for emergency laparotomy: a systematic review

Aims/Background Poorly controlled pain is common after emergency laparotomy. It causes distress, hinders rehabilitation, and predisposes to complications: prolonged hospitalisation, persistent pain, and reduced quality of life. The aim of this systematic review was to compare the relative efficacies of pre-emptive analgesia for emergency laparotomy to inform practice. Methods We performed a search of MEDLINE, MEDLINE In-Process, Embase, PubMed, Web of Science and SCOPUS for comparator studies of preoperative/intraoperative interventions to control/reduce postoperative pain in adults undergoing emergency laparotomy (EL) for general surgical pathologies. Exclusion criteria: surgery including non-abdominal sites; postoperative sedation and/or intubation; non-formal assessment of pain; non-English manuscripts. All manuscripts were screened by two investigators. Results We identified 2389 papers. Following handsearching and removal of duplicates, 1147 were screened. None were eligible for inclusion, with many looking at elective and/or laparoscopic surgeries. Conclusion Our findings indicate there is no evidence base for pre-emptive analgesic strategies in emergency laparotomy. This contrasts substantially with elective cohorts. Potential reasons include variation in practice, management of physiological derangement taking priority, and perceived contraindications to neuraxial techniques. We urge a review of contemporary practice, with analysis of clinical data, to generate expert consensus.