Cochrane · systematic review · CD007821
Heated insufflation with or without humidification for laparoscopic abdominal surgery
Birch, DW, Dang, JT, Switzer, NJ, et al. · Cochrane Database of Systematic Reviews · 2016 · Cochrane Library
ColorectalAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
38
current version
GRADE rated
37
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 1 · 2.6%Very low 4 · 10.5%Low 14 · 36.8%Moderate 16 · 42.1%High 3 · 7.9%
Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.
Questions and results
Core temperature
Population: Laparoscopic abdominal surgery (core temperature)
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Change in core temperature (ºC) | no estimate extracted | 19 studies · 1100 participants | Low Downgraded: risk of bias, imprecision, inconsistency |
Change in core temperature: heated, humidified vs cold | no estimate extracted | 14 studies · 885 participants | Low Downgraded: risk of bias, imprecision, inconsistency |
Change in core temperature: heated only vs cold | no estimate extracted | 7 studies · 215 participants | Low Downgraded: risk of bias, imprecision, inconsistency |
Change in core temperature for known low risk of bias studies | no estimate extracted | 10 studies · 653 participants | Moderate Downgraded: risk of bias, imprecision, inconsistency |
Change in core temperature for known low risk of bias studies: heated, humidified vs cold | no estimate extracted | 8 studies · 561 participants | Moderate Downgraded: risk of bias, imprecision, inconsistency |
Change in core temperature for low risk of bias studies: heated only vs cold | no estimate extracted | 3 studies · 92 participants | Moderate Downgraded: risk of bias, imprecision, inconsistency |
Change in core temperature with external warming | no estimate extracted | 8 studies · 545 participants | Moderate Downgraded: risk of bias, imprecision, inconsistency |
Change in core temperature without external warming | no estimate extracted | 6 studies · 340 participants | Moderate Downgraded: risk of bias, imprecision, inconsistency |
Change in core temperature for operations > 120 min | no estimate extracted | 4 studies · 194 participants | Moderate Downgraded: risk of bias, imprecision, inconsistency |
Pain score
Population: Laparoscopic abdominal surgery (pain score)
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Day 1 pain score (0 to 10‐point VAS) | no estimate extracted | 14 studies · 991 participants | Low Downgraded: risk of bias, imprecision, inconsistency |
Day 1 pain score: heated, humidified vs cold (abdominal) | no estimate extracted | 10 studies · 670 participants | Low Downgraded: risk of bias, imprecision, inconsistency |
Day 1 pain score: heated, humidified vs cold (shoulder) | no estimate extracted | 3 studies · 171 participants | Very low Downgraded: risk of bias, imprecision, inconsistency |
Day 1 pain score: heated only vs cold | no estimate extracted | 3 studies · 150 participants | Moderate Downgraded: risk of bias, imprecision, inconsistency |
Day 2 pain score | no estimate extracted | 10 studies · 695 participants | Low Downgraded: risk of bias, imprecision, inconsistency |
Day 2 pain score: heated, humidified vs cold (abdominal) | no estimate extracted | 7 studies · 442 participants | Low Downgraded: risk of bias, imprecision, inconsistency |
Day 2 pain score: heated, humidified vs cold (shoulder) | no estimate extracted | 2 studies · 111 participants | Very low Downgraded: risk of bias, imprecision, inconsistency |
Day 2 pain score: heated only vs cold | no estimate extracted | 3 studies · 142 participants | Low Downgraded: risk of bias, imprecision, inconsistency |
Day 1 pain score for low risk of bias studies | no estimate extracted | 7 studies · 570 participants | High |
Day 1 pain score for low risk of bias studies: heated, humidified vs cold (abdominal) | no estimate extracted | 7 studies · 460 participants | High |
Day 1 pain score for low risk of bias studies: heated, humidified vs cold (shoulder) | no estimate extracted | 2 studies · 110 participants | Moderate Downgraded: risk of bias, imprecision, inconsistency |
Day 2 pain score for low risk of bias studies | no estimate extracted | 5 studies · 380 participants | High |
Morphine consumption
Population: Laparoscopic abdominal surgery (morphine consumption)
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Up to 6 h | no estimate extracted | 4 studies · 231 participants | Moderate Downgraded: risk of bias, imprecision |
Day 1 morphine | no estimate extracted | 9 studies · 573 participants | Moderate Downgraded: risk of bias, imprecision |
Day 1 morphine: heated, humidified vs cold | no estimate extracted | 7 studies · 481 participants | Low Downgraded: risk of bias, imprecision |
Day 1 morphine: heated only vs cold | no estimate extracted | 3 studies · 92 participants | Low Downgraded: risk of bias, imprecision |
Day 2 morphine | no estimate extracted | 7 studies · 532 participants | Moderate Downgraded: risk of bias, imprecision |
Day 2 morphine: heated, humidified vs cold | no estimate extracted | 6 studies · 410 participants | Moderate Downgraded: risk of bias, imprecision |
Day 2 morphine: heated only vs cold | no estimate extracted | 2 studies · 122 participants | Low Downgraded: risk of bias, imprecision |
Hospital stay
Population: Laparoscopic abdominal surgery (hospital stay)
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Hospital stay (days) | no estimate extracted | 10 studies · 685 participants | Moderate Downgraded: risk of bias |
Hospital stay: heated, humidified vs cold | no estimate extracted | 9 studies · 563 participants | Moderate Downgraded: risk of bias |
Hospital stay: heated only vs cold | no estimate extracted | 2 studies · 122 participants | Moderate Downgraded: risk of bias |
Risk of bias not clear | no estimate extracted | 1 participants | Ungraded |
Recovery time
Population: Laparoscopic abdominal surgery (recovery time)
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Recovery time (minutes) | no estimate extracted | 6 studies · 327 participants | Low Downgraded: risk of bias, imprecision |
Recovery time for low risk of bias studies | no estimate extracted | 5 studies · 277 participants | Moderate Downgraded: risk of bias, imprecision |
Lens fogging
Population: Laparscopic abdominal surgery (lens fogging)
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Times cleaned | no estimate extracted | 7 studies · 341 participants | Low Downgraded: risk of bias, inconsistency |
Operative time
Population: Laparoscopic abdominal surgery (operative time)
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Operative time (minutes) | no estimate extracted | 20 studies · 1318 participants | Very low Downgraded: risk of bias, imprecision, inconsistency |
Operative time: heated, humidified vs cold | no estimate extracted | 15 studies · 1033 participants | Very low Downgraded: risk of bias, imprecision, inconsistency |
Operative time: heated only vs cold | no estimate extracted | 7 studies · 285 participants | Low Downgraded: risk of bias, imprecision, inconsistency |