Background: Although laparoscopic cholecystectomy (LC) results in less pain than open cholecystectomy, it is not a pain-free procedure. Many methods of analgesia for pain after laparoscopy have been evaluated. Methods: Forty-two randomized controlled trials assessing interventions to reduce pain after LC are reviewed, as are the mechanisms and nature of pain after this procedure. Results: Non-steroidal anti-inflammatory drugs, wound local anaesthetic, intraperitoneal local anaesthetic, intraperitoneal saline, a gas drain, heated gas, low-pressure gas and nitrous oxide pneumoperitoneum have been shown to reduce pain after LC. The clinical significance of this pain reduction is questionable. Conclusion: Pain after LC is multifactorial. Although many methods of analgesia produce short-term benefit, this does not equate with earlier discharge or improved postoperative function. However, single trials evaluating low-pressure insufflation, heated gas and multimodal analgesia suggest that clinically relevant benefits can be achieved.

Pain after laparoscopic cholecystectomy.

Preoperative progressive pneumoperitoneum (PPP) is a safe and effective procedure in the treatment of large incisional hernia (size > 10 cm in width or length) with loss of domain (LIHLD). There is no consensus in the literature on the amount of gas that must be insufflated in a PPP program or even how long it should be maintained. We describe a technique for calculating the hernia sac volume (HSV) and abdominal cavity volume (ACV) based on abdominal computerized tomography (ACT) scanning that eliminates the need for subjective criteria for inclusion in a PPP program and shows the amount of gas that must be insufflated into the abdominal cavity in the PPP program. Our technique is indicated for all patients with large or recurrent incisional hernias evaluated by a senior surgeon with suspected LIHLD. We reviewed our experience from 2001 to 2008 of 23 consecutive hernia surgical procedures of LIHLD undergoing preoperative evaluation with CT scanning and PPP. An ACT was required in all patients with suspected LIHLD in order to determine HSV and ACV. The PPP was performed only if the volume ratio HSV/ACV (VR = HSV/ACV) was >or=25% (VR >or= 25%). We have performed this procedure on 23 patients, with a mean age of 55.6 years (range 31-83). There were 16 women and 7 men with an average age of 55.6 years (range 31-83), and a mean BMI of 38.5 kg/m(2) (range 23-55.2). Almost all patients (21 of 23 patients-91.30%) were overweight; 43.5% (10 patients) were severely obese (obese class III). The mean calculated volumes for ACV and HSV were 9,410 ml (range 6,060-19,230 ml) and 4,500 ml (range 1,850-6,600 ml), respectively. The PPP is performed by permanent catheter placed in a minor surgical procedure. The total amount of CO(2) insufflated ranged from 2,000 to 7,000 ml (mean 4,000 ml). Patients required a mean of 10 PPP sessions (range 4-18) to achieve the desired volume of gas (that is the same volume that was calculated for the hernia sac). Since PPP sessions were performed once a day, 4-18 days were needed for preoperative preparation with PPP. The mean VR was 36% (ranged from 26 to 73%). We conclude that ACT provides objective data for volume calculation of both hernia sac and abdominal cavity and also for estimation of the volume of gas that should be insufflated into the abdominal cavity in PPP.

A computerized tomography scan method for calculating the hernia sac and abdominal cavity volume in complex large incisional hernia with loss of domain.

Background
Laparoscopic cholecystectomy (LC) is the treatment of choice for symptomatic cholecystolithiasis. Despite the many advantages over open surgery, many patients complain about referred pain to the shoulder during the postoperative course. The purpose of this review was to evaluate different intraoperative surgical methods to minimize shoulder pain (SP).

Surgical techniques to minimize shoulder pain after laparoscopic cholecystectomy. A systematic review

Background
A clinical trial was designed to assess the use of preincisional and intraperitoneal ropivacaine, combined or not with normal saline, to reduce pain after laparoscopic cholecystectomy (LC)

Preincisional and intraperitoneal ropivacaine plus normal saline infusion for postoperative pain relief after laparoscopic cholecystectomy: a randomized double-blind controlled trial

Laparoscopic cholecystectomy is associated with a high incidence of postoperative pain, nausea, and vomiting. Pneumoperitoneum created during the operation and residual gas after the operation are two of the factors in postoperative pain and nausea. We studied the effects of a subdiaphragmatic gas drain, which is intended to decrease the residual gas, on postoperative pain, nausea, and vomiting after laparoscopic cholecystectomy. Seventy patients were randomized into two demographically and clinically comparable groups: drainage and control. Postoperative pain, nausea, and vomiting were measured by verbal grading and visual analog scale 2–72 h postoperatively. Analgesic and antiemetic use and incidence of retching, vomiting and other complaints were also recorded. Subdiaphragmatic drain effectively reduced the incidence and amount of subdiaphragmatic gas bubble. The incidence and severity of nausea was lower in the drainage group at 72 h. Although severity of pain was lower at 8 and 12 h in the drainage group, the difference was not significant. There was also no difference between the groups in regard to analgesic and antiemetic use. Subdiaphragmatic drain offers only minor, if any, benefit on postoperative pain, nausea, and vomiting after laparoscopic cholecystectomy, and this effect is probably clinically irrelevant.

Effect of drainage on postoperative nausea, vomiting, and pain after laparoscopic cholecystectomy.

Background: Patients who present with abdominal pain after recent laparoscopic surgery present a diagnostic dilemma when pneumoperitoneum is present. Previous studies do not define the duration of postlaparoscopic pneumoperitoneum. In this study, we attempted to define the duration of laparoscopic pneumoperitoneum and to identify factors which affect resolution time.

Duration of postlaparoscopic pneumoperitoneum

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Duration of postlaparoscopic pneumoperitoneum