Preoperative coagulation abnormalities as a risk factor for adverse events after pancreas surgery
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Published on: May 31, 2024
Joshua Castle1, Aditya Mazmudar1, David Bentrem1
1Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Insights
Elevated INR or PTT values predict adverse outcomes and mortality after elective pancreatectomy. Coagulation profiles can identify high-risk patients needing more resources for better surgical outcomes.
Area of Science:
- Surgical outcomes research
- Coagulation diagnostics
- Pancreatic surgery
Background:
- Elective pancreatectomy carries significant postoperative risks.
- Predictive markers for adverse events are crucial for patient management.
Purpose of the Study:
- To investigate if elevated International Normalized Ratio (INR) or Prothrombin Time (PTT) predict 30-day adverse events after elective pancreatectomy.
- To assess the association between prolonged bleeding times and postoperative morbidity and mortality.
Main Methods:
- Analysis of the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database (2005-2013).
- Inclusion of 14,747 patients undergoing elective pancreatectomy.
- Multivariate logistic regression to examine the association of elevated INR/PTT with 30-day outcomes.
Main Results:
- A significant increase in 30-day mortality was observed in patients with elevated INR/PTT (1.8% vs. 3.3%).
- Elevated INR/PTT correlated with increased odds of bleeding, surgical site infections, sepsis, respiratory complications, cardiac events, renal failure, reoperation, and prolonged hospital stay.
- These associations remained significant after controlling for confounders, except for superficial surgical site infections.
Conclusions:
- Prolonged bleeding times (elevated INR/PTT) are linked to higher mortality and adverse outcomes post-pancreas surgery.
- Coagulation profiles, specifically INR and PTT, can serve as valuable tools for risk stratification in patients undergoing pancreatectomy.
- Identifying high-risk patients allows for targeted resource allocation and potentially improved patient care.
Objective:
To determine whether elevated INR or PTT values predicted 30-day postoperative adverse events following elective pancreatectomy.
Methods:
The American college of surgeons national surgical quality improvement program (ACS-NSQIP) database was used to identify 14 747 patients undergoing elective pancreatectomy from 2005 to 2013. The association of elevated INR or PTT with 30-day postoperative outcomes of morbidity and mortality was examined using multivariate logistic regression analysis.
Results:
The overall 30-day mortality rate increased from 1.8% to 3.3% from the control to the high INR or PTT group (P = <0.001). An elevated INR/PTT increased the odds for bleeding requiring transfusion, superficial SSI, sepsis, unplanned intubation or >48 h on a ventilator, cardiac arrest or myocardial infarction, acute renal failure, return to the OR, and prolonged length of stay. With the exception of superficial SSI, multivariate logistic regression models revealed that these same events remained statistically significant after controlling for potential confounders.
Conclusion:
Prolonged bleeding times (high INR/PTT) is associated with increased mortality and adverse outcomes after pancreas surgery. A patient's coagulation profile may serve as a risk stratification tool to identify higher risk patients that require more resources.
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