Table 7.
Laboratory indexes
| Risk factors(laboratory indexes) | Studies reporting on a risk factor for THA or TKA:total number,number reporting a significant (p ≤ .05)increased (+) or decreased (−) risk,and number with no significant association(p > .05) | |||||||
|---|---|---|---|---|---|---|---|---|
| THA | TKA | |||||||
| N | p ≤ .05 | p > .05 | N | p ≤ .05 | p > .05 | |||
| + | - | + | - | |||||
| Preoperative index | ||||||||
| blood glucose ≥ 200 mg/dl | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 |
| Resting PaO2 < 75 mmHg | - | - | - | - | 1 | 0 | 0 | 1 |
| Resting PaCO2 ≥ 45 mmHg | - | - | - | - | 1 | 1 | 0 | 0 |
| RVSP ≥ 35 mmHg* | - | - | - | - | 1 | 0 | 0 | 1 |
| Postoperative index | ||||||||
| Higher platelet counts | - | - | - | - | 1 | 1 | 0 | 0 |
| Hemoglobin ≥ 10.5 g/dl | - | - | - | - | 1 | 1 | 0 | 0 |
| AaDO2 ≥ 34 Torr† | - | - | - | - | 1 | 1 | 0 | 0 |
| Seroconvertion of IgG-class HIT Antibody‡ | - | - | - | - | 1 | 1 | 0 | 0 |
*RVSP = right ventricular systolic pressure, referring to pulmonary hypertension.
†AaDO2 = alveolar-arterial oxygen gradient.
‡HIT = heparin-induced thrombocytopenia, which is a thromboembolic complication that can occur with unfractionated heparin (UFH) or low molecular weight heparin (LMWH).