Abstract
Background
Preoperative simulation of the thoracic duct using magnetic resonance thoracic ductography (MRTD) would enable a safe lymph node dissection near the thoracic duct and the prevention of chylothorax after an esophagectomy. The aim of this study was to determine whether MRTD is useful for preventing injury to the thoracic duct during surgery and for reducing the incidence of chylothorax after surgery.
Methods
We evaluated 130 patients who underwent preoperative MRTD followed by a thoracoscopic esophagectomy for the treatment of thoracic esophageal cancer between August 2014 and April 2017 (MRTD group). These patients were then compared with 160 patients with esophageal cancer who underwent a thoracoscopic esophagectomy without preoperative MRTD (non-MRTD group).
Results
Four patients in the non-MRTD group developed Type IIIB chylothorax (International Consensus on Standardization), while none of the patients in the MRTD group developed Type III chylothorax. Some type of abnormal finding was found during MRTD in 24 patients (18.5%). Among them, 13 patients (10.0%) exhibited abnormal divergence, which was the most frequent finding, followed by 5 patients (3.8%) with window formation and 2 patients (1.5%) with stitch formation.
Conclusions
The present study revealed the frequencies of abnormal findings of the thoracic duct and of patients with false-negative MRTD findings. Injury to the thoracic duct can be avoided through the use of appropriate care during procedures performed in patients with abnormal findings on preoperative MRTD.
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Oguma, J., Ozawa, S., Kazuno, A. et al. Clinical Significance of New Magnetic Resonance Thoracic Ductography Before Thoracoscopic Esophagectomy for Esophageal Cancer. World J Surg 42, 1779–1786 (2018). https://doi.org/10.1007/s00268-017-4372-1
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DOI: https://doi.org/10.1007/s00268-017-4372-1