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Table 7 Laboratory indexes

From: Risk factors for venous thromboembolism of total hip arthroplasty and total knee arthroplasty: a systematic review of evidences in ten years

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

  1. *RVSP = right ventricular systolic pressure, referring to pulmonary hypertension.
  2. AaDO2 = alveolar-arterial oxygen gradient.
  3. HIT = heparin-induced thrombocytopenia, which is a thromboembolic complication that can occur with unfractionated heparin (UFH) or low molecular weight heparin (LMWH).