Sania Waseem, Humera Naz Altaf, Sehrish Latif, Omar Shahzad Altaf, Fareeha Farooqui, Sohaib Khan.
Comparison of standard and low-pressure pneumoperitoneum; reduction in frequency and intensity of post-operative shoulder pain.
J Shifa Tameer-e-Millat Uni Jan ;2(2):47-51.

Laparoscopic cholecystectomy is now gold standard and depends on good exposure of the peritoneal cavity. It is achieved by insufflation of the abdominal cavity with CO2. Operating at lower intraabdominal pressure (<12 -15mmHg) has been associated with fewer pulmonary and hemodynamic complications and lesser postoperative pain. Objective: To ascertain the advantages of low pressure pneumoperitoneum over standard pressure pneumoperitoneum Methods: Our study was quasi experimental study conducted at  KRL Hospital, Islamabad over period of 3years from 2013 to 2016. SPSS version 20 was used to calculate p value.  Results: A total of 456 patients of gallstones were equally divided in two groups assigned to undergo low pressure (7-8mm of Hg) pneumoperitoneum or standard pressure (12-14mm of Hg) pneumoperitoneum laparoscopic cholecystectomy The average age of patients was 46.2+/-13.6yrs in group A compared to 43.5 +/- 12.9 in group B. There were 60 (26.3%) male and 168 (73.7%) female patients in group A compared to 53 (23.2% and 175 (76.85) in group B respectively. It was found that group A 14 (6.1%) had no pain, 26 (11.4%) had VAS between 1 – 7 and 188 (82.5%) had VAS of 8 – 10 where as in group B 164 (72.6%) patients reported no shoulder tip pain postoperatively, 42 (18.6%) had VAS of 1 – 7 and 20 (8.8%) had VAS OF 8 – 10. The difference was statistically significant (p-value = <0.001). Conclusions: reduced pressure of pneumoperitoneum to 7 – 8 mm of Hg produce lower incidence of postoperative shoulder tip pain.

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