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Postoperative complications after esophagectomy for cancer, neoadjuvant chemoradiotherapy compared to neoadjuvant
Halla Sif Ólafsdóttir1,2, Emmy Dalqvist3, Eva Onjukka3,4
1Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, SE-141 52 Huddinge, Sweden.
Background:
Complications after esophagectomy are common and the possible increase in postoperative complications associated with neoadjuvant chemoradiotherapy is of concern. The aim of our study was to analyze if the addition of radiotherapy to neoadjuvant chemotherapy increases the incidence and severity of postoperative complications, including evaluation of the relation between radiation doses to the heart and lungs and postoperative complications.
Methods:
The study was based on an institutional surgical database for esophageal cancer. The study period was October 2008 to March 2020. Patients treated with neoadjuvant chemoradiotherapy were compared to patients treated with neoadjuvant chemotherapy and dose/volume parameters for the lungs and heart considered. The primary outcome was 30-day postoperative complications.
Results:
During the study period, 274 patients underwent surgery for esophageal cancer, 93 patients after neoadjuvant chemotherapy and 181 patients after neoadjuvant chemoradiotherapy. The median prescribed radiation dose to the planning target volume was 41.4 Gy, the median of the mean lung dose was 6.2 Gy, and the median of the mean heart dose was 20.3 Gy. The addition of radiotherapy to neoadjuvant chemotherapy did not increase the incidence of postoperative complications. Neither were radiation doses to the lungs and heart associated with postoperative complications. Taxane-based chemotherapy regimens were however associated with an increased incidence of postoperative complications.
Conclusions:
In our cohort, the addition of neoadjuvant radiotherapy to chemotherapy was not associated with postoperative complications. However, taxane-based chemotherapy regimens, with or without concomitant radiotherapy, were associated with postoperative complications.
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