Application of Ultrasound-guided Intranodal Lymphangiography and Embolization in Cancer Patients with Postoperative Lymphatic Leakage

Abstract Background: Traumatic lymphatic leakage is a rare but potentially life-threatening complication. The purpose of this study was to introduce ultrasound-guided intranodal lymphangiography and embolisation techniques for postoperative lymphatic leakage in patients with cancer.Methods: From January 2018 through June 2020, seven cancer patients (three males, four females, aged 59-75 years [mean 67.57 ± 6.11 years]) developed lymphatic leakage after abdominal or pelvic surgery, with drainage volumes ranging from 550 to 1200 mL per day. The procedure and follow-up of ultrasound-guided intranodal lymphangiography and embolisation were recorded. This study retrospectively analysed the technical success rate, operative time, length of hospital stay, clinical efficacy, and complications.Results: The operation was technically successful in all patients. Angiography revealed leakage and embolisation was performed in all seven patients (7/7, 100%). The operative time of angiography and embolisation was 41 to 68 minutes, with an average time of 53.29 ± 10.27 minutes. The mean length of stay was 3.51±1.13 days. Lymph node embolisation was clinically successful in five patients (5/7, 71.43%), who had a significant reduction in or disappearance of chylous ascites. The other two patients received surgical treatment two weeks later due to poor results after embolisation. All patients were followed for two weeks. No serious complications or only minor complications were found in all the patients.Conclusions: Ultrasound-guided intranodal lymphangiography and embolisation were well tolerated by the patients, who experienced a low incidence of complications. Early intervention is recommended for cancer patients with postoperative lymphatic leakage.