Objective: To determine the frequency of vitamin D deficiency in patients with liver cirrhosis and the relationship of vitamin D deficiency with Child Pugh Class in patients with cirrhosis. Materials and Methods: Vitamin D and calcium levels were checked in patients with cirrhosis of liver aged 18 to 80 years admitted in Gastroenterology department of Lahore General Hospital. Investigations were also done to calculate Child Pugh (CTP) score and Child Class was assigned on the basis of score. Quantitative variables were expressed in terms of mean and standard deviation. Frequency and percentage were used for qualitative measures. The p-value was calculated by the contingency coefficient to find a relationship of vitamin D levels to CTP scores of liver cirrhosis. Data was analyzed using SPSS 24 Study Duration: The study was carried out from December 2019 to October 2020 Results: A total of 170 patients with mean age of 43.82 ± 9.72 (19-61) years were evaluated of which 144 (84.7%) were males, 26 (15.3%) were females. Vitamin D3 deficiency was found in 144/170 (84.7%) patients while insufficiency was found in 14/170(8.2 %). It was more common in male patients (86.1%) compared to female patients (76.9%). Mean vitamin D3 levels was 14.4 ± 9.4 ng/ ml. Patients with Child A cirrhosis 6/10 (60%) had deficiency, with child B 66/82 (80.5%) while with Child C 72/78 (92.3%) had deficiency of Vitamin D3. Conclusion: Vitamin D deficiency is common in patients with cirrhosis and level has decreased stepwise with higher Child Pugh Class. Keywords: Cirrhosis, Vitamin D, Child Pugh score

Aims & Objectives: Corner stone in performing living donor liver transplant is to assess and predict the adequacy of the donated liver for recipient and remaining liver. Previously the conversion of liver volume to estimated weight is done by using unit to unit conversion with a factor of 1. We analyzed data of our institute to research the methodology and local applicability of the same. Place and duration of study: Shaikh Zayed Hospital, Lahore. January 2011 to June 2017 Material & Methods: Retrospective data was collected for the first 115 recipients and donors. Their preoperative liver volumes calculated by C.T scan and post-operative graft harvested with weights were compared. Results: The parameter of actual volume of right lobe averaged to 769.77 ± 12.73 gm varying with a quantum of 17.73% (426 – 1123 gm). Estimated volume of right lobe of liver varied 358 to 1218 ml (CV = 17.84%) with an average value of 798.96 ± 13.29 ml. Results of linear regression between estimated volume of right lobe and actual weight of the right lobe in gm was significantly linear (r = 0.830, r2 = 0.690, adj. r2 = 0.689 and F = 250.98, p < 0.0001), showing that volumetric assessment overestimated graft weight/volume. Following is equation generated from our data for graft weight estimation. Actual right lobe (g) = 134.004 + 0.796 (estimated right lobe volume (ml) ± 76.42. Conclusion: Using one to one principle for volume estimation of healthy liver can be misleading and therefore we propose an equation to reach more accurate estimation of graft weight. Keywords: living donor liver transplant, CT volumetry, graft to body weight ratio