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Table 6 Influence of coagulation parameters on bleeding rates

From: Percutaneous ultrasonographically guided liver punctures: an analysis of 1961 patients over a period of ten years

 

Platelet count

Quick test

PTT

Reference range

≥ 70,000/μl

≥ 70 %

< 50 s

Findings in relation to biopsy

42.5% (n = 948)

43.4% (n = 968)

34.8% (n = 775)

Biopsy in patients not meeting full coagulation criteria

1.2% (n = 11)

5.1% (n = 49)

1.4% (n = 11)

Most significant deviation from reference range

32,000/μl

45%

66 s

OR [95%-CI]

1.000 [0.997-1.004]

0.970 [0.0943-0.999]

1.078 [1.014-1.146]

p-value *

0.8301

0.0430

0.0157

  1. * Bivariate logistic regression for individual coagulation parameters considered as constant variables, statistically significant values in bold type.
  2. CI Confidence interval, OR Odds Ratio, PTT Partial Thromboplastin Time, s Seconds.