الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Surgical abdominal emergencies are clinical conditions of sudden onset that may require urgent operative intervention. They represent a spectrum of surgical conditions with varying etiological agents, depending on the environment. Common causes of acute surgical abdomen are intestinal obstruction, abdominal trauma, perforated peptic ulcer, typhoid ileal perforation, intra-abdominal abscess which unfortunately still carries high morbidity and mortality in our environment due largely to delay in presentation and operative intervention due to financial difficulties Malnutrition is a frequent finding in patients undergoing emergency abdominal surgery, especially in the elderly. The decreased nutritional status leads to increased complications and delayed recovery after the surgical procedure. This prospective observational study was carried out on 150 patients at the Emergency sector, general surgery department, Tanta University Hospitals. We included all adult patients submitted to emergency major abdominal surgery and excluded non major abdominal surgery and patients who were managed conservatively. All patients were subjected to full history tacking, Complete clinical examination including measurements like; height, weight, and BMI at time of admission. Standard laboratory investigation including those required for calculation of the three scores (serum albumin, total peripheral lymphocytic count, and serum cholesterol). We calculated for each patient CONUT score, PNI and NRI preoperatively and correlated them with early post operative complications during first months. • The study results showed: 1. The age of the studied patients ranged from 18 to 84 years with a mean value of 48.48 ± 15.80 years. BMI ranged from 20 - 44 kg/m2 with a mean value of 29.55 ± 4.99 kg/m2. The study included 97 (64.70%) males and 53 (35.3%) females. 2. The lymphocytic count of our patients ranged from 104 to 4500 with a mean value of 1961.23± 920.97, Albumin ranged from 2.7 to 4.9 (gm/dl) with a mean value of 3.72 ± 0.45 (gm/dl). Cholesterol ranged from 80 to 230 (mg/dl) with a mean value of 153.69 ± 34.35 (mg/dl) 3. 50.7% patients were diagnosed with peritonitis. 21.3% patients were diagnosed with intestinal obstruction 16.7% patients were diagnosed with strangulated hernias 11.3% patients were admitted with abdominal trauma. 4. Based on CONUT score :43.3% patients had normal nutrition 46% had light malnutrition, 10.7% had moderate malnutrition, (AUC) was 0.719 with sensitivity of 0.68 and specificity of 0.67，diagnostic accuracy was 68% and the optimal cut-off value was identified as 4 5. The values of NRI ranged from 33.8 - 49.9 with a mean of 46.94 ± 1.90, with cut off 46.3 (AUC) was 0.759， with sensitivity of 0.83 and specificity of 0.63, diagnostic accuracy was 73% and the optimal cut-off value was identified as 46.3 6. The values of PNI ranged from 32.4 - 59.5 with a mean of 46.76 ± 6.55 with cut off value 40 , (AUC) was 0.735 with sensitivity of 0.83 and specificity of 0.50 and diagnostic accuracy 66%.