Table 1 Preoperative Data

Age (Years)

   <50 Years

422 (84)

   >50 Years

82(16)

Sex

   Male

423(84)

   Female

82(16)

Pre existing comorbid conditions

   Respiratory disease

51 (10)

   Renal Disease

27 (50)

   Malignancy

25 (5)

   Hypertension

11 92)

   Diabetes mellitus

5 (1)

Signs and symptoms

   Pain

495 (98)

   Vomiting

296 (59)

   Abdominal distention

221 (44)

   Constipation

193 (38)

   Fever

124 (25)

   Diarrhoea

35 (7)

   Tachycardia (pulse >/110/minute)

115 (23)

   Hypotention (Systolic blood pressure <100 mm Hg)

44 (9)

   Urine output (<30 ml/hr)

80 (16)

   Tacchypnea (respiratory rate >20/minute)

334 (66)

Investigations

   Pneumoperitoneum on Chest X-Ray

340(67)

   Air fluid levels on abdominal X-Ray

108(21)

   Hyponatraemia(Na<130 mEq/L)

148(29)

   Hypokalemia(K<2.7 mEq/L)

44(09)

   Blood Urea Nitrogen(>167 mg/dl)

76(15)

   Serum Creatinine(<1.7 mg/dl)

65(13)