Spectrum and Outcome of Emergency General Surgery Laparotomies at a Tertiary Center in South Africa.

BACKGROUND

Nontraumatic surgical emergencies constitute a significant portion of total surgical workload and are associated with a significant mortality rate. The spectrum and outcome of surgical emergencies in a low-middle-income country may differ from that in high-income countries. This study aims to describe the spectrum and outcome of emergency laparotomy for nontrauma surgical emergencies at a single-tertiary center in South Africa.

METHODS

A retrospective interrogation of a hybrid electronic record system of consecutive patients undergoing emergency laparotomy for nontraumatic surgical emergencies presenting to Greys Hospital from December 2012 to December 2018.

RESULTS

One thousand four hundred sixty four patients were included with a median age of 34 y (IQR 23-52) and male predominance (861; 59%). The mortality rate was 12.5% (183). The most common comorbidity was human immunodeficiency virus (353; 24.1%) which did not influence mortality. At least one comorbidity increased the odds of mortality by 4 times (95% CI 2.7-6.2). Mortality was associated with longer waiting times to operation (12.8 versus 8.4 h; P < 0.001) and longer operating times (105 min versus 80 min respectively; P < 0.001). Temporary abdominal closure was used in 245 (16.7%) patients. Planned repeat laparotomy was performed in 193 (13.2%) patients. Acute appendicitis (594, 40.6%) was the most common pathology of which 61.4% had the American Association for the Surgery of Trauma grade of 4 or more (high grade). This was followed by perforated peptic ulcer disease (10.5%). The adverse event rate was 51.5% (754). Postoperative pulmonary complications and acute kidney injury were the most common. The strongest predictors of mortality were abdominal compartment syndrome (OR 26.5, 95% CI 9.36-94.13) and postoperative hemodynamic instability 17.43 (OR 17.4, 95% CI 11.80-25.98).

CONCLUSIONS

Our spectrum of disease differs to that found in high-income countries. The morbidity and mortality rates are significant, and attention must be focused on attempts to reduce this. Various comorbidities and adverse events are associated with increased mortality.