Fadia Dib1,2, Lara Ribeiro Parenti3, Anne Boutten4, David Hajage5,6,7, Jean-Pierre Marmuse3. 1. AP-HP, Department of Epidemiology, Biostatistics and Clinical Research, Bichat-Claude-Bernard Hospital, Paris Diderot University, 46, rue Henri-Huchard, 75018, Paris, France. fadia.dib@aphp.fr. 2. INSERM, CIC-EC 1425, 75018, Paris, France. fadia.dib@aphp.fr. 3. AP-HP, General Surgery, Department of Surgery, Bichat-Claude-Bernard Hospital, Paris, France. 4. AP-HP, Department of Biochemistry, Bichat-Claude-Bernard Hospital, Paris, France. 5. Département de Biostatistiques, Santé publique et Information médicale, AP-HP, Hôpital Pitié-Salpêtrière, 75013, Paris, France. 6. Sorbonne Paris Cité, UMR 1123 ECEVE, Université Paris Diderot, 75010, Paris, France. 7. INSERM, UMR 1123 ECEVE, 75018, Paris, France.
Abstract
BACKGROUND: Gastric leak is the most common and dreaded post-operative infectious complication (PIC) after laparoscopic sleeve gastrectomy (LSG). Accurate identification of patients at risk postoperatively is of cardinal importance. OBJECTIVE: The aim of this study is to assess the diagnostic performance of C-reactive protein (CRP) in predicting PICs and the most optimal time to measure it. METHODS: CRP results were collected in patients undergoing LSG between 2011 and 2015. CRP was systematically measured on post-operative days (POD) 1, 3, and 5. RESULTS: Of 1326 patients, 42 (3.2%) developed a PIC at a median of 5 days after surgery. The incidence of leakage was 1.9%. The best area under the curve was observed on POD5 (0.87; 95% CI 0.77-0.96). At this time point, a cut-off of 115 mg/L yielded a sensitivity of 66.7% (95% CI 46.5-86.8%), a specificity of 95.1% (95% CI 93.9-96.3%), a positive and negative predictive values of 19.4% (95% CI 10.3-28.6%) and 99.4% (95% CI 99.0-100%), respectively, and a positive and negative likelihood ratios (LRs) of 13.62 and 0.35, respectively. The combination of sequential assessments of CRP on POD3 and 5 provided a sensitivity of 84.4% (95% CI 71.8-97.0%), a specificity of 91.1% (95% CI 89.5-92.8%), a positive and negative predictive values of 20.9% (95% CI 14.0-27.9%) and 99.5% (95% CI 99.1-99.9%), respectively, and a positive and a negative LRs of 9.58 and 0.17, respectively. CONCLUSIONS: CRP may be useful to identify patients at risk of PICs after LSG and, therefore, to prompt early investigation. However, CRP does not help rule out PICs.
BACKGROUND: Gastric leak is the most common and dreaded post-operative infectious complication (PIC) after laparoscopic sleeve gastrectomy (LSG). Accurate identification of patients at risk postoperatively is of cardinal importance. OBJECTIVE: The aim of this study is to assess the diagnostic performance of C-reactive protein (CRP) in predicting PICs and the most optimal time to measure it. METHODS:CRP results were collected in patients undergoing LSG between 2011 and 2015. CRP was systematically measured on post-operative days (POD) 1, 3, and 5. RESULTS: Of 1326 patients, 42 (3.2%) developed a PIC at a median of 5 days after surgery. The incidence of leakage was 1.9%. The best area under the curve was observed on POD5 (0.87; 95% CI 0.77-0.96). At this time point, a cut-off of 115 mg/L yielded a sensitivity of 66.7% (95% CI 46.5-86.8%), a specificity of 95.1% (95% CI 93.9-96.3%), a positive and negative predictive values of 19.4% (95% CI 10.3-28.6%) and 99.4% (95% CI 99.0-100%), respectively, and a positive and negative likelihood ratios (LRs) of 13.62 and 0.35, respectively. The combination of sequential assessments of CRP on POD3 and 5 provided a sensitivity of 84.4% (95% CI 71.8-97.0%), a specificity of 91.1% (95% CI 89.5-92.8%), a positive and negative predictive values of 20.9% (95% CI 14.0-27.9%) and 99.5% (95% CI 99.1-99.9%), respectively, and a positive and a negative LRs of 9.58 and 0.17, respectively. CONCLUSIONS:CRP may be useful to identify patients at risk of PICs after LSG and, therefore, to prompt early investigation. However, CRP does not help rule out PICs.
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