Rotational Thromboelastometry Predicts Increased Bleeding After Off-Pump Coronary Bypass Surgery

Sarah Soh, Younglan Kwak, Jong Wook Song, Kyung Jong Yoo, Hee Jung Kim, Jae Kwang Shim

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Abstract

Background We aimed to investigate the ability of rotational thromboelastometry (ROTEM) thresholds for coagulopathy to predict increased perioperative blood loss in off-pump coronary artery bypass graft surgery (OPCABG) and its association with transfusion requirement. Methods The data of 303 patients undergoing OPCABG were retrospectively analyzed. Perioperative blood loss and transfusion requirement were compared according to the presence of abnormal ROTEM thresholds, which were tested after anesthesia induction and heparin reversal. Logistic regression analyses were performed to predict significant perioperative blood loss (more than 20% of estimated blood volume). Results After graft completion, 92 patients (30%) exhibited abnormal ROTEM thresholds and showed significantly higher perioperative blood loss (median 840 mL [interquartile range: 646 to 1,102 mL] versus median 690 [interquartile range: 530 to 850 mL], p < 0.001) and greater transfusion requirement (both in the number of patients receiving transfusion and the median number of transfused units) of packed erythrocytes and fresh frozen plasma than patients exhibiting no ROTEM thresholds. After multivariate analysis of preoperative anemia, postoperative international normalized ratio greater than 1.3, and ROTEM thresholds, only ROTEM threshold (odds ratio 3.45, 95% confidence interval: 2.00 to 5.97, p < 0.001) remained an independent predictor of significant perioperative blood loss, which occurred in 79 patients (26%). Conclusions Abnormal ROTEM thresholds after heparin reversal were found to be associated with significant perioperative bleeding and transfusion requirement in OPCABG. Rotational thromboelastometry may allow timely hemostatic interventions to reduce blood loss and transfusion in OPCABG.

Original languageEnglish
Pages (from-to)1318-1324
Number of pages7
JournalAnnals of Thoracic Surgery
Volume104
Issue number4
DOIs
Publication statusPublished - 2017 Oct 1

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Thrombelastography
Hemorrhage
Off-Pump Coronary Artery Bypass
Coronary Artery Bypass
Transplants
Blood Transfusion
Heparin
International Normalized Ratio
Hemostatics
Blood Volume
Anemia
Multivariate Analysis
Anesthesia
Erythrocytes
Logistic Models
Odds Ratio
Regression Analysis
Confidence Intervals

All Science Journal Classification (ASJC) codes

  • Surgery
  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine

Cite this

Soh, Sarah ; Kwak, Younglan ; Song, Jong Wook ; Yoo, Kyung Jong ; Kim, Hee Jung ; Shim, Jae Kwang. / Rotational Thromboelastometry Predicts Increased Bleeding After Off-Pump Coronary Bypass Surgery. In: Annals of Thoracic Surgery. 2017 ; Vol. 104, No. 4. pp. 1318-1324.
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abstract = "Background We aimed to investigate the ability of rotational thromboelastometry (ROTEM) thresholds for coagulopathy to predict increased perioperative blood loss in off-pump coronary artery bypass graft surgery (OPCABG) and its association with transfusion requirement. Methods The data of 303 patients undergoing OPCABG were retrospectively analyzed. Perioperative blood loss and transfusion requirement were compared according to the presence of abnormal ROTEM thresholds, which were tested after anesthesia induction and heparin reversal. Logistic regression analyses were performed to predict significant perioperative blood loss (more than 20{\%} of estimated blood volume). Results After graft completion, 92 patients (30{\%}) exhibited abnormal ROTEM thresholds and showed significantly higher perioperative blood loss (median 840 mL [interquartile range: 646 to 1,102 mL] versus median 690 [interquartile range: 530 to 850 mL], p < 0.001) and greater transfusion requirement (both in the number of patients receiving transfusion and the median number of transfused units) of packed erythrocytes and fresh frozen plasma than patients exhibiting no ROTEM thresholds. After multivariate analysis of preoperative anemia, postoperative international normalized ratio greater than 1.3, and ROTEM thresholds, only ROTEM threshold (odds ratio 3.45, 95{\%} confidence interval: 2.00 to 5.97, p < 0.001) remained an independent predictor of significant perioperative blood loss, which occurred in 79 patients (26{\%}). Conclusions Abnormal ROTEM thresholds after heparin reversal were found to be associated with significant perioperative bleeding and transfusion requirement in OPCABG. Rotational thromboelastometry may allow timely hemostatic interventions to reduce blood loss and transfusion in OPCABG.",
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Rotational Thromboelastometry Predicts Increased Bleeding After Off-Pump Coronary Bypass Surgery. / Soh, Sarah; Kwak, Younglan; Song, Jong Wook; Yoo, Kyung Jong; Kim, Hee Jung; Shim, Jae Kwang.

In: Annals of Thoracic Surgery, Vol. 104, No. 4, 01.10.2017, p. 1318-1324.

Research output: Contribution to journalArticle

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AU - Kwak, Younglan

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AU - Shim, Jae Kwang

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N2 - Background We aimed to investigate the ability of rotational thromboelastometry (ROTEM) thresholds for coagulopathy to predict increased perioperative blood loss in off-pump coronary artery bypass graft surgery (OPCABG) and its association with transfusion requirement. Methods The data of 303 patients undergoing OPCABG were retrospectively analyzed. Perioperative blood loss and transfusion requirement were compared according to the presence of abnormal ROTEM thresholds, which were tested after anesthesia induction and heparin reversal. Logistic regression analyses were performed to predict significant perioperative blood loss (more than 20% of estimated blood volume). Results After graft completion, 92 patients (30%) exhibited abnormal ROTEM thresholds and showed significantly higher perioperative blood loss (median 840 mL [interquartile range: 646 to 1,102 mL] versus median 690 [interquartile range: 530 to 850 mL], p < 0.001) and greater transfusion requirement (both in the number of patients receiving transfusion and the median number of transfused units) of packed erythrocytes and fresh frozen plasma than patients exhibiting no ROTEM thresholds. After multivariate analysis of preoperative anemia, postoperative international normalized ratio greater than 1.3, and ROTEM thresholds, only ROTEM threshold (odds ratio 3.45, 95% confidence interval: 2.00 to 5.97, p < 0.001) remained an independent predictor of significant perioperative blood loss, which occurred in 79 patients (26%). Conclusions Abnormal ROTEM thresholds after heparin reversal were found to be associated with significant perioperative bleeding and transfusion requirement in OPCABG. Rotational thromboelastometry may allow timely hemostatic interventions to reduce blood loss and transfusion in OPCABG.

AB - Background We aimed to investigate the ability of rotational thromboelastometry (ROTEM) thresholds for coagulopathy to predict increased perioperative blood loss in off-pump coronary artery bypass graft surgery (OPCABG) and its association with transfusion requirement. Methods The data of 303 patients undergoing OPCABG were retrospectively analyzed. Perioperative blood loss and transfusion requirement were compared according to the presence of abnormal ROTEM thresholds, which were tested after anesthesia induction and heparin reversal. Logistic regression analyses were performed to predict significant perioperative blood loss (more than 20% of estimated blood volume). Results After graft completion, 92 patients (30%) exhibited abnormal ROTEM thresholds and showed significantly higher perioperative blood loss (median 840 mL [interquartile range: 646 to 1,102 mL] versus median 690 [interquartile range: 530 to 850 mL], p < 0.001) and greater transfusion requirement (both in the number of patients receiving transfusion and the median number of transfused units) of packed erythrocytes and fresh frozen plasma than patients exhibiting no ROTEM thresholds. After multivariate analysis of preoperative anemia, postoperative international normalized ratio greater than 1.3, and ROTEM thresholds, only ROTEM threshold (odds ratio 3.45, 95% confidence interval: 2.00 to 5.97, p < 0.001) remained an independent predictor of significant perioperative blood loss, which occurred in 79 patients (26%). Conclusions Abnormal ROTEM thresholds after heparin reversal were found to be associated with significant perioperative bleeding and transfusion requirement in OPCABG. Rotational thromboelastometry may allow timely hemostatic interventions to reduce blood loss and transfusion in OPCABG.

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