Incidence and management of chylothorax after esophagectomy
نویسندگان
چکیده
BACKGROUND Chylothorax is a rare but serious postoperative complication in esophageal cancer patients. The aim of this study was to identify risk factors associated with chylothorax and the indication for surgical intervention. METHODS A consecutive series of 1290 patients who underwent esophagectomy for esophageal cancer was included. Peri-operative data, including postoperative morbidity and mortality, were analyzed. RESULTS Thirty-four patients (2.6%) developed chylothorax and had significantly higher instances of pneumonia (26.5% vs. 11.1%, P = 0.012) and arrhythmia (17.6% vs. 2.9%, P = 0.001), and a longer hospital stay (22 vs. 18 days, P < 0.001). Reoperation was performed in 11 patients at a rate of 77.8%, 42.9%, 20%, and 0% for chylothorax diagnosed in two, three, four, and >= 5 days, respectively, after esophagectomy (P < 0.001). After three days of conservative therapy, the chest tube output was significantly greater in patients whose medical management had failed than in those successfully treated (P < 0.001). All patients who required reoperation had >= 13.5 ml/kg of drainage (sensitivity 100%); four of 23 patients with successful medical management had a chest tube output >= 13.5 ml/kg (specificity 83%). Logistic regression analysis showed that body mass index (BMI) < 25 was an independent risk factor for chylothorax (hazard ratio = 9.256, P = 0.029). CONCLUSIONS Patients with a BMI < 25 are more likely to develop chylothorax after esophagectomy. Operative therapy should be seriously considered in patients who develop chylothorax early postoperatively. In addition, a high daily chylous output of >= 13.5 ml/kg after three days of conservative therapy might be a reliable indicator for reoperation.
منابع مشابه
Aetiology and management of chylothorax in adults.
Though rare in incidence, chylothorax can lead to significant morbidity and mortality. Its occurrence corresponds to increased mortality following esophagectomy. Leakage of chyle and lymph leads to significant loss of essential proteins, immunoglobulins, fat, vitamins, electrolytes and water. The presence of chylomicrons and a triglyceride level >110 mg/dl in the aspirated pleural fluid confirm...
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