What do systematic reviews say?

Fewer‐than‐four ports vs four ports

• Fewer‐than‐four ports versus four ports for laparoscopic cholecystectomy 2014 · Cochrane Headline outcomes only
  no estimate extracted
  4 studies · 510 participants
  Very low

Fewer‐than‐four ports vs four ports

It is very uncertain whether fewer‐than‐four ports changes conversion to open cholecystectomy compared with four ports (very low certainty).

• Fewer‐than‐four ports versus four ports for laparoscopic cholecystectomy 2014 · Cochrane Headline outcomes only
  RR 0.68 [0.19, 2.35]
  5 studies · 581 participants
  Very low

Fewer‐than‐four ports vs four ports

• Fewer‐than‐four ports versus four ports for laparoscopic cholecystectomy 2014 · Cochrane Headline outcomes only
  no estimate extracted
  9 studies · 855 participants
  Very low

Fewer‐than‐four ports vs four ports

• Fewer‐than‐four ports versus four ports for laparoscopic cholecystectomy 2014 · Cochrane Headline outcomes only
  no estimate extracted
  6 studies · 731 participants
  Very low

Fewer‐than‐four ports vs four ports

It is very uncertain whether fewer‐than‐four ports changes proportion discharged as day surgery compared with four ports (very low certainty).

• Fewer‐than‐four ports versus four ports for laparoscopic cholecystectomy 2014 · Cochrane Headline outcomes only
  RR 0.92 [0.7, 1.22]
  1 study · 50 participants
  Very low

Fewer‐than‐four ports vs four ports

• Fewer‐than‐four ports versus four ports for laparoscopic cholecystectomy 2014 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 325 participants
  Very low

Fewer‐than‐four ports vs four ports

• Fewer‐than‐four ports versus four ports for laparoscopic cholecystectomy 2014 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 150 participants
  Very low

Various interventions vs control

It is very uncertain whether various interventions changes morbidity compared with control (very low certainty).

• Pharmacological interventions for prevention or treatment of postoperative pain in people undergoing laparoscopic… 2014 · Cochrane Headline outcomes only
  RR 0.75 [0.37, 1.53]
  5 studies · 543 participants
  Very low

Various interventions vs control

It is very uncertain whether various interventions changes proportion discharged as day‐surgery compared with control (very low certainty).

• Pharmacological interventions for prevention or treatment of postoperative pain in people undergoing laparoscopic… 2014 · Cochrane Headline outcomes only
  RR 1 [0.74, 1.34]
  1 study · 116 participants
  Very low

Various interventions vs control

• Pharmacological interventions for prevention or treatment of postoperative pain in people undergoing laparoscopic… 2014 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 119 participants
  Very low

Various interventions vs control

• Pharmacological interventions for prevention or treatment of postoperative pain in people undergoing laparoscopic… 2014 · Cochrane Headline outcomes only
  no estimate extracted
  11 studies · 999 participants
  Very low

Various interventions vs control

• Pharmacological interventions for prevention or treatment of postoperative pain in people undergoing laparoscopic… 2014 · Cochrane Headline outcomes only
  no estimate extracted
  9 studies · 707 participants
  Very low

Various interventions vs control

• Pharmacological interventions for prevention or treatment of postoperative pain in people undergoing laparoscopic… 2014 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 123 participants
  Very low

Various interventions vs control

The review found no eligible studies for this question.

• Pharmacological interventions for prevention or treatment of postoperative pain in people undergoing laparoscopic… 2014 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

• Methods of intraperitoneal local anaesthetic instillation for laparoscopic cholecystectomy 2014 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 206 participants
  Very low

Intervention not reported

• Methods of intraperitoneal local anaesthetic instillation for laparoscopic cholecystectomy 2014 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 206 participants
  Very low

Intervention not reported

It is very uncertain whether the intervention changes just after creation of pneumoperitoneum versus end of surgery (very low certainty).

• Methods of intraperitoneal local anaesthetic instillation for laparoscopic cholecystectomy 2014 · Cochrane Headline outcomes only
  RR 0.98 [0.65, 1.5]
  1 study · 33 participants
  Very low

Intervention not reported

It is very uncertain whether the intervention changes subdiaphragmatic instillation versus gallbladder bed instillation (very low certainty).

• Methods of intraperitoneal local anaesthetic instillation for laparoscopic cholecystectomy 2014 · Cochrane Headline outcomes only
  RR 1.56 [0.76, 3.19]
  1 study · 82 participants
  Very low

Intervention not reported

The review found no eligible studies for this question.

• Methods of intraperitoneal local anaesthetic instillation for laparoscopic cholecystectomy 2014 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

• Methods of intraperitoneal local anaesthetic instillation for laparoscopic cholecystectomy 2014 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 206 participants
  Very low