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Does Neoadjuvant Radiation Therapy Contribute to the Incidence of Pulmonary Complications Following Esophagectomy for
Matthew A Beier1, Alissa A Greenbaum2, Aaron W Kangas-Dick2
1Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA.
Background:
Post-operative pulmonary complications (POPC) are common in patients undergoing esophagectomy and neoadjuvant radiotherapy may exacerbate POPC. This study assessed whether neoadjuvant radiation increases the incidence of POPC in patients undergoing esophagectomy for malignancy.
Methods:
The American College of Surgeons-National Surgical Quality Improvement Program database files from 2016 to 2018 were queried for patients undergoing esophagectomy for malignancy. Inverse probability treatment weighting (IPTW) was used to create balanced cohorts in which the control group received neoadjuvant chemotherapy (nCT) and the treatment cohort received neoadjuvant chemoradiotherapy (nCRT). A subset analysis was performed on patients with pre-existing pulmonary disease (PEPD). Primary outcomes were POPC and 30-day mortality.
Results:
The all-patient analysis did not demonstrate a consistent association between neoadjuvant radiation and POPC. However, in patients with PEPD, POPC occurred more often in the nCRT cohort. Comparing nCRT to nCT and after IPTW adjustment for confounders, there was higher odds of pneumonia (aOR = 3.0, P = .002), unplanned intubation (aOR = 2.0, P = .03), and extended mechanical ventilation (aOR = 3.6, P = .002).
Discussion:
In esophageal cancer patients with PEPD that undergo nCRT vs nCT prior to esophagectomy, the greater risk of POPCs must be weighed against the potential for improved oncologic outcomes.
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