Table 1.
Characteristics of studies included in meta-analysis
| Author, year | Country | Type of surgery | Type of anesthesia | Number of participants | Female (%) | Age (Mean) | Postoperative complications | Definition of hypotension | Type of study | Quality scorei |
|---|---|---|---|---|---|---|---|---|---|---|
| Bertrand, 2001 [7] | France | Elective major vascular sugery | General | 37 | 12.2 | 68 | ST-T abnormalities | SBPa< 80 mmHg | RCT | RCT |
| Brabant, 1999 [12] | France | Elective vascular surgery | General | 39 | 16.7 | 69 | MIb | SBP < 90 mmHg or 30% baseline | Prospective observational | 8 |
| Calloway, 2014 [13] | USA | Total knee arthroplasty | Neuraxial | 60 | 61 | 66 | MI, stroke/TIAc, AKId, death | SBP ≤85 mmHg | Retrospective observational | 8 |
| Colson, 1992 [18] | France | Coronary artery bypass graft surgery | General | 16 | 12.5 | 65 | N/Ae | MAPf < 70 mmHg | Prospective observational | 6 |
| Comfere, 2005 [15] | USA | Non-cardiovascular | General | 267 | 44 | 66(Median) | MI, stroke, AKI, death | SBP ≤85 mmHg | Retrospective observational | 9 |
| Coriat, 1994 [16] | France | Peripheral vascular | General | 51 | N/A | 67 | N/A | SBP < 90 mmHg | RCTg | RCT |
| Licker, 2000 [19] | Switzerland | Coronary artery bypass graft | General | 32 | 22 | 60 | N/A | SBP < 90 mmHg | Prospective observational | 7 |
| Pigott, 1999 [9] | UK | Coronary artery bypass graft | General | 40 | 12.5 | 63 | N/A | SBP < 85 mmHg | RCT | RCT |
| Roshanov, 2017 [20] | Eight countries | Noncardiac Surgery | NA | 4802 | N/A | N/A | myocardial injury, stroke, death | SBP < 90 mmHg | Prospective observational | 8 |
| Ryckwaert, 1997 [14] | France | Coronary artery bypass graft | General | 18 | 11 | 62 | N/A | 70mmHg | Prospective observational | 7 |
| Salvetti, 2016 [17] | Italy | Elective bariatric surgery | General | 26 | 73% | 47 | N/A | N/A | Prospective observational | 8 |
| Steely, 2016 [21] | New England | Carotid endarterectomy | General/ Neuraxial | 2878 | N/A | N/A | MACEh, stroke/ death | N/A | Retrospective observational | 9 |
| Zainudheen, 2017 [22] | Woolloongabba | Elective orthopaedic surgery | General/ Neuraxial | 258 | 58.5% | 69.8 | MACE, AKI | SBP < 90 mmHg | Retrospective observational | 7 |
a, SBP, systolic blood pressure; b, MI, myocardial infarction; c, TIA, transient ischemic attack; d, AKI, acute kidney injury; e, N/A, not available;f, mean arterial pressure; g, RCTs, randomized controlled trials; h, MACE, major adverse cardiac event
ithe quality score was assessed with the use of the Newcastle–Ottawa Scale (NOS)