Zhao 2005.
| Methods | Design: RCT Operative phase: intra‐ and postoperative Withdrawals: not stated Setting: 1 centre (China) Sample size: 40 Funding: not stated |
|
| Participants | Age (mean range): 44 ‐ 52 years Gender (M/F): 23/17 ASA grade: I ‐ II Surgery type: elective (abdominal surgery) Surgery duration (average): > 2 hrs (204/230 mins) Anaesthesia type: general |
|
| Interventions |
Intervention (ABSW): n = 20 Forced‐air warming blanket (Warmtouch®, Mallinckrodt Medical Inc, St Louis, Mo) + IV fluid warming (Warmflo®, Mallinckrodt Medical Inc, St Louis, Mo) Temperature: set at 42° ‐ 43 °C Duration (mean): not stated Body area covered: from the legs up to the pubis Proportion covered: not stated Control: n = 20 Single layer of cotton sheet Duration (mean): not stated Co‐interventions: not stated Room temperature: 22.4° ‐ 22.5ºC |
|
| Outcomes | Transfusion (Units) Shivering ('absent/mild/medium/severe') Blood loss (ml) Fluids infused (crystalloids; colloids) (ml) Other outcomes reported not included in the review:
|
|
| Notes | Comparison 1 | |
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Random sequence generation (selection bias) | Unclear risk | Not reported |
| Allocation concealment (selection bias) | Unclear risk | Not reported |
| Blinding of participants and personnel (performance bias) All outcomes | Unclear risk | Not reported |
| Blinding of outcome assessment (detection bias) All outcomes | Unclear risk | Not reported |
| Baseline comparability of groups | Low risk | To a high extent according to Table 1 |
| Co‐interventions equal between groups | Unclear risk | None reported |
| Incomplete outcome data (attrition bias) All outcomes | Low risk | All randomized participants were analysed |
| Selective reporting (reporting bias) | Unclear risk | We did not have access to the protocol, therefore we cannot exclude risk of selective reporting with the information provided |
| Other bias | Low risk | |
ASEPSIS: A scoring method (ASEPSIS) for postoperative wound infections for use in clinical trials Points are given for the need for Additional treatment, the presence of Serous discharge, Erythema, Purulent exudate, and Separation of the deep tissues, the Isolation of bacteria, and the duration of inpatient Stay (ASEPSIS). CABG: coronary artery bypass graft CBP: coronary bypass CK: creatine kinase ECC: Extracorporeal Circulation ECG: electrocardiograph FAW: forced‐air warming hr: hour ICU: intensive care unit ITT: intention‐to‐treat IV: intravenous min(s): minute(s) OPCABG: off‐pump coronary artery bypass graft OR: operating room PACU: perioperative anaesthetic care unit PP: post partum CVP: Central Venous Pressure RBC: red blood cell VAS: visual analogue scale VNRS: verbal numerical rating score