Open necrosectomy in acute pancreatitis–obsolete or still useful?

Table 3 Ninety-day survival, forward conditional multivariate analysis

Risk factor	OR (95% CI)	P
Age > 60 years	19.355 (2.466–151.593)	0.005
Any co-morbidity*	16.869 (1.981–143.633)	0.010
Indication of necrosectomy: deterioration/prolonged organ failure	10.421 (1.572–69.080)	0.015
Necrosectomy < 28 days from symptom onset	6.480 (1.280–32.812)	0.024
Multiple organ failure^†	12.159 (1.155–127.981)	0.038
Preoperative WBC count ≥ 23.0^‡	21.442 (3.162–145.392)	0.002

Cut-off value for entry into multivariate analysis was P < 0.010 in Additional file 2
CI confidence interval, WBC white blood cell
*Any of the comorbidities presented in univariate analysis of all patients (Additional file 2)
^†At least two of the following organ failures within 24 h of first necrosectomy: Cardiovascular, respiratory or renal
^‡WBC count expressed as 1 × 10⁹/L. One WBC count was not taken 24 h prior to operation, and thus, the last available WBC count prior to first necrosectomy was used

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