Impact of Patient and Intraoperative Factors on Anastomotic Leak After Ivor-Lewis Esophagectomy

Overview

This retrospective cohort study from a single tertiary center evaluated the incidence and risk factors for anastomotic leakage (AL) following Ivor-Lewis esophagectomy. Key findings highlight associations between perioperative fluid management, vasopressor use, and patient comorbidities with AL rates, providing insights into modifiable factors to improve surgical outcomes.

Background

Esophagectomy remains the primary curative treatment for resectable esophageal cancer but is associated with significant postoperative morbidity, notably anastomotic leakage (AL), which occurs in approximately 9–11% of cases. AL leads to increased intensive care needs, prolonged hospitalization, and higher mortality. Multiple risk factors including patient comorbidities, neoadjuvant therapy, and surgical technique influence AL risk. Perioperative fluid and hemodynamic management, including vasopressor use, are critical but understudied contributors to anastomotic integrity in esophagectomy.

Data Highlights

The study included adult patients undergoing elective Ivor-Lewis esophagectomy from January 2018 to September 2024. Data extracted encompassed demographics, comorbidities, medication use, intraoperative variables (vasopressor doses, fluid balance, blood pressure), and postoperative outcomes. Anastomotic leak was defined by radiographic and endoscopic criteria. Fluid balance was calculated cumulatively through postoperative day 7. Continuous arterial pressure monitoring and goal-directed fluid therapy were employed intraoperatively.

Key Findings

• Anastomotic leak incidence in this cohort aligned with contemporary international estimates (9–11%).
• Higher cumulative perioperative net fluid balance was associated with increased AL risk, suggesting fluid overload may compromise anastomotic healing.
• Use of vasopressors, particularly phenylephrine and vasopressin, showed variable effects on AL, implicating splanchnic vasoconstriction as a potential mechanism affecting conduit perfusion.
• Preoperative antiplatelet therapy, including P2Y12 inhibitors, correlated with higher AL rates, possibly reflecting underlying microvascular disease.
• Patient comorbidities such as diabetes, cardiovascular disease, and poor nutritional status remained significant contributors to AL risk.
• Goal-directed intraoperative fluid management using continuous hemodynamic monitoring was associated with lower AL rates compared to liberal fluid administration.

Clinical Implications

These findings underscore the importance of individualized, goal-directed fluid management during Ivor-Lewis esophagectomy to minimize fluid overload and optimize anastomotic perfusion. Careful selection and dosing of vasopressors should consider their potential impact on splanchnic blood flow. Preoperative assessment of vascular comorbidities and medication use can help stratify AL risk and guide perioperative planning.

Conclusion

Anastomotic leakage after Ivor-Lewis esophagectomy remains a significant clinical challenge influenced by modifiable perioperative factors including fluid balance and vasopressor use. Tailored hemodynamic management protocols may reduce AL incidence and improve patient outcomes.

References

1. University of Florida Institutional Review Board 2024 -- Retrospective Cohort Study on Esophagectomy
2. Mathis et al. -- Artifact Reduction in Intraoperative Blood Pressure Monitoring
3. STROBE RECORD Guidelines 2022 -- Reporting Observational Studies