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KMID : 0338420200350051199
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The Korean Journal of Internal Medicine
2020 Volume.35 No. 5 p.1199 ~ p.1209
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The role of platelet function analyzer-200 in predicting perioperative bleeding risk
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Yu Eun-Sang
Jeon Min-Ji
Kang Ka-Won
Lee Byung-Hyun
Kang Eun-Joo
Park Yong
Lee Se-Ryeon
Sung Hwa-Jung
Choi Chul-Won
Kim Byung-Soo
Kim Dae-Sik
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Abstract
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Background/Aims: Various preoperative screening tests, such as platelet count, prothrombin time, activated partial thromboplastin time, and bleeding time, have been widely used to evaluate the risk of bleeding during surgery. Use of platelet function analyzer (PFA)-100/200 for assessing platelet function instead of bleeding time is increasing. However, its role in predicting the perioperative risk of bleeding remains controversial.
Methods: Data of 703 patients who underwent surgery under general anesthesia were retrospectively analyzed. Preoperative platelet function was measured using PFA-200 system and the association with intraoperative bleeding was assessed. Additionally, other variables that could affect PFA-200 results were assessed by logistic regression analysis.
Results: Collagen/epinephrine (COL/EPI) test was prolonged in 199/703 (28.3%) patients (EPI group), while 99/212 (46.7%) patients showed COL/adenosine diphosphate test abnormalities. Bleeding over 300 mL during surgery occurred in 14.3% and 20.1% of patients in the normal and EPI groups, respectively (p = 0.058). In addition, red blood cell transfusion within 72 hours after surgery rate was significantly higher in the EPI group than in the normal group (31.7% vs. 23.4%, p = 0.024). In multivariate logistic analysis, prolongation closure time with COL/EPI (p = 0.068) was marginally associated with risk of bleeding during surgery. Furthermore, PFA-200 results were influenced by various factors, such as nonsteroidal anti-inflammatory drug use, blood group, hematocrit, and time of blood collection.
Conclusions: Preoperative PFA-200 test may be helpful in predicting the risk of perioperative bleeding. However, its results should be carefully interpreted because they are affected by several factors.
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KEYWORD
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Platelet function analyzer, Bleeding, Surgery, Screening test
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