Introduction
Pulmonary aspiration of gastric contents is a major perioperative complication with a mortality rate of 75% and severe morbidity of 14%. The risk increases in emergency surgeries and gastric ultrasound may be useful to establish gastric content and inform aspiration risk assessment. In this study we describe the degree of agreement between pre-surgical clinical evaluation and gastric ultrasound, in the identification of full stomach in adult patients requiring emergency surgery.
Materials and methods
Descriptive observational cross-sectional study of diagnostic tests. The analysis included all adult patients with pathologies requiring emergency surgeries between August 2023 and May 2024 at Hospital Universitario Hernando Moncaleano Perdomo, Neiva, Colombia. The Kappa index was calculated between the two tests (Clinical evaluation vs. Gastric ultrasound), and the level of agreement between them was determined.
Results
A total of 57 patients were included in the study. Age, median (range): 51 (18–83), of whom 64.9% were male. The main types of surgeries were general surgery (80.7%), followed by trauma (19.3%). The majority of the population was classified as ASA 3. The most common comorbidities were Arterial Hypertension and type 2 Diabetes Mellitus. Fasting time ranged from 12 to 24 hours. There was a high level of agreement among the examiners for determining a full stomach using point-of-care (POCUS) gastric ultrasound, with a concordance level of 0.88 (p < 0.001). In contrast, there was a low level of agreement between the clinical and sonographic evaluation for gastric content assessment, with a concordance level of -0.03 (p 0.768).
Conclusion
Our results suggest that gastric ultrasound has a high level of reproducibility in the emergency surgical setting and can provide information beyond the clinical assessment.
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