LOW THORACIC DUCT LIGATION FOR POSTOPERATIVE CHYLOUS EFFUSIONS IN INFANTS AND CHILDREN

Three patients aged from three months to six years underwent thoracic duct ligation at the level of the diaphragm for chylothorax which occurred following cardiac operations. Another three-month-old patient underwent thoracic duct ligation for massive postoperative chylopericardium. Indications for operation were a large recurrent chyle accumulation or prolonged chyle drainage. Operative ductograms to deliniate the cisterna chyli and to exclude the presence of multiple lymph channels were performed in three patients. Excellent postoperative results were obtained in all patients for periods of up to two years. Low thoracic duct ligation is a reliable means of control of postoperative chylothorax and lengthy persistence with conservative treatment is no longer necessary.     

膈上胸导管结扎术在食管癌切除术中的应用

目的探讨胸导管结扎术对食管癌术后乳糜胸的预防和治疗作用。方法回顾性分析我院2003年1月至2009年6月的两组共836例食管癌切除术后的乳糜胸发生情况和治疗效果。其中结扎组431例,术中常规在膈上水平整块结扎胸导管,非结扎组405例,术中未常规结扎胸导管,术后并发乳糜胸者,再次采用手术治疗。结果结扎组无术后乳糜胸发生。非结扎组术后发生乳糜胸15例（3．7％）,治愈13例（86．7％）,死亡2例（13．3％）,1例死于呼吸功能衰竭,1例死于多器官功能衰竭。结论食管癌切除术中常规结扎胸导管可有效预防术后乳糜胸的发生。膈上胸导管结扎法稳妥有效。食管癌术后并发乳糜胸应积极手术治疗。     

Prophylactic Thoracic Duct Mass Ligation Prevents Chylothorax After Transthoracic Esophagectomy for Cancer

Background  Chylothorax after transthoracic esophagectomy for cancer is an uncommon but potentially life-threatening postoperative complication. It has been reported that preventive thoracic duct ligation can reduce the incidence of postoperative chylothorax after esophagectomy for cancer. In this prospective series, we evaluated the results of preventive intraoperative thoracic duct mass ligation in patients who underwent transthoracic esophagectomy for cancer. Methods  From 2001 to 2006, 323 patients underwent transthoracic esophagectomy for cancer and duct ligation during the operation was routinely performed. Results  No intraoperative or postoperative complications directly related to the procedure were recorded. No postoperative chylothorax was observed. Conclusions  In this series, the technique of intraoperative thoracic duct mass ligation proved to be safe and effectively prevented postoperative chylothorax in patients who underwent transthoracic esophagectomy for cancer.     

Thoracoscopic ligation of the thoracic duct.

OBJECTIVE: When nonoperative treatment of chylothorax fails, thoracic duct ligation is usually performed through a thoracotomy. We describe two cases of persistent chylothorax, in a child and an adult, successfully treated with thoracoscopic ligation of the thoracic duct. METHODS: A 4-year-old girl developed a right chylothorax following a Fontan procedure. Aggressive nonoperative management failed to eliminate the persistent chyle loss. A 72-year-old insulin-dependent diabetic man was involved in a motor vehicle accident, in which he sustained multiple fractured ribs, a right hemopneumothorax, a right femoral shaft fracture, and a T-11 thoracic vertebral fracture. Subsequently, he developed a right chylothorax, which did not respond to nonoperative management. Both patients were successfully treated with thoracoscopic ligation of the thoracic duct. RESULTS: The child had significant decrease of chyle drainage following surgery. Increased drainage that appeared after the introduction of full feedings five days postoperatively was controlled with the somatostatin analog octreotide. The chest tube was removed two weeks after surgery. After two years' follow-up, she has had no recurrence of chylothorax. The adult had no chyle drainage following surgery. He was maintained on a medium-chain triglyceride diet postoperatively for two weeks. The chest tube was removed four days after surgery. After six months' follow-up, he has had no recurrence of chylothorax. CONCLUSIONS: Thoracoscopic ligation of the thoracic duct provides a safe and effective treatment of chylothorax and may avoid thoracotomy and its associated morbidity.     

Surgical management of chylothorax: a report of 65 cases

Sixty-five cases of chylothorax treated at the Shanghai Chest Hospital over the past 30 years are reviewed. The causes of chylothorax in this series were mainly traumatic and postoperative (47/65). Two cases were associated with chylopericardium and another 2 with chylous sputum. The authors believe that untreated chylothorax is a serious, often life-threatening entity and that the following principles are applicable in its management: (1) If daily chyle loss exceeds 1000 ml in adults with no tendency of subsidence, surgery is indicated especially in the effusion may lead to disastrous nutritional and immunologic consequences; (2) Ligation of the thoracic duct is effective by a mass ligature encircling all tissues between the azygos vein and the aorta. The most favorable site for ligation is immediately above the diaphragm. Over dissection of the thoracic duct should be avoided; (3) The proper surgical approach is on the side of the effusion in unilateral chylothorax, but right side approach is preferred in case of bilateral chylothorax or when the origin of chylous fistula is unknown; (4) Pleurodesis is indicated for those cases if the duct is not obviously present or chyle comes from the pleural lymphatics. Concentrated glucose solution with or without Talc suspension is recommendable.     

Prone thoracoscopic thoracic duct ligation for postsurgical chylothorax

Background  Chylothorax after complex abdominal and thoracic procedures remains a challenging complication with a mortality rate reaching 50% if untreated [1]. Iatrogenic trauma accounts for almost 20% of all chyle leaks, and esophagectomy is the most common iatrogenic cause [2]. Consequences of ongoing chyle leak include dehydration, malnutrition, and immunocompromise. Methods  When nonoperative management techniques fail, prompt ligation of the thoracic duct at the diaphragmatic hiatus should be attempted. The authors present prone thoracoscopic thoracic duct ligation performed for two patients after laparoscopic transthoracic esophagectomy and revision paraesophageal hernia repair. Results  The prone position for thoracoscopic thoracic duct ligation offers several benefits to the surgeon. Gravity retracts the lung anteriorly, exposing the diaphragmatic hiatus. Single-lumen endotracheal intubation combined with low-pressure carbon dioxide insufflation efficiently collapses the lung to create ample working space. For the two reported patients, only three trocars were necessary to complete suture ligation of the thoracic duct via the right chest. Both patients had complete resolution of their chylothorax and recovered uneventfully. Based on this experience, the authors currently advocate early thoracoscopic treatment for cost and morbidity savings. Conclusions  The authors believe prone thoracoscopic thoracic duct ligation offers significant advantages to the patient in preventing the dangerous consequences of chyle leak in a timely, minimally invasive fashion. Importantly, the prone technique with carbon dioxide insufflation makes the technical challenges of thoracic duct ligation more facile for the surgeon. Electronic supplementary material  The online version of this article (doi:) contains supplementary material, which is available to authorized users.     

Results of prophylactic thoracic duct ligation in advanced esophageal carcinoma

Objective  Esophageal carcinoma is one of the most common lethal malignancies in northwest Iran. The purpose of this study is to determine the efficiency of prophylactic thoracic duct ligation and compare the incidence, risk factors and outcomes of chylothorax in patients undergoing esophageal cancer surgery. Methods and Material  From 1995 through 2005 a total 420 patients undergoing esophageal resection with or without mediastinal lymph node dissection. In first five years (Group I: 210 patients) that after any esophagectomies we have not used prophylactic thoracic duct ligation (1995–2000). In last five years for prevention of chylothorax after any esophagectomies (Group II: 210 patients), thirty patients with advanced stage of esophageal carcinoma underwent to prophylactic thoracic duct ligation (2000–2005). Data analysis included Chi-square or Fisher exact test and Independent Samples t test. A p-value of <0.05 was considered significant. All analyzes were performed using the SPSS.15/_win software. Results  There were 100 men and 110 women with a mean age of 53.18±12.35 years in Group I, 108 men and 102 women with a mean age of 56.1±9.83 years in Group II. The initial procedures were transhiatal esophagectomies and transthoracic esophagectomies. Six patients of group I, developed to chylothorax with average daily postoperative drainage greater than 1000 ml/day for 6 days, and underwent to reoperation at a mean of 7.12±1.85 days after diagnosis (4–8 days). Chest tube drainage was stopped during 48 hours after reoperation. In Group II chylothorax did not occur. Conclusions  Chylothorax increases mortality and duration of hospitalization after esophageal cancer surgery. Most cases of chylothorax after esophageal resection are cured with early surgical intervention. It could be concluded that prophylactic thoracic duct ligation reduce the occurrence of chylothorax in advanced cases of esophageal carcinoma.     

Thoracoscopic management of chylothorax complicating esophagectomy

BACKGROUND: Chylothorax is a relatively uncommon complication of esophageal surgery that may lead to severe respiratory, nutritional, and immunologic deficiencies. PATIENTS AND METHODS: Between 1992 and 2000, 3 of 316 patients (0.9%) undergoing transthoracic esophagectomy for carcinoma developed postoperative chylothorax. Two of them had previously been treated with neoadjuvant chemoradiation, and one had been submitted to esophagogastric resection through a left thoracotomy. After a 2-week trial of total parenteral nutrition and drainage, two patients underwent thoracic duct ligation via thoracotomy. In the last patient, the operation was completed by thoracoscopy. The azygos vein and the periaortic tissue above the diaphragm were encircled en bloc by a right-angled clamp, and a roticulating endostapler was applied. RESULTS: Reoperation was successful in all patients. The postoperative hospital stay was 4 days. CONCLUSION: Thoracoscopy is a safe and effective procedure for the treatment of chylothorax complicating esophagectomy. Given the minimal trauma to the patient, early thoracoscopic reoperation can be advocated in patients with high-output chyle loss in order to reduce the hospital stay.     

Chylothorax following fracture of the thoracolumbar spine

Chylothorax is an uncommon occurrence seen most frequently in patients with malignancy. We report a case of chylothorax following fracture-dislocation of the thoracolumbar spine, the ninth reported case in the English literature. Seven cases of chylothorax were identified in a 12-year period at our institution. A total 925 patients sustained fractures of the thoracic or lumbar spine during this period, and this was the only case associated with chylothorax. We have reviewed the literature, and recommend conservative management utilizing closed thoracotomy drainage and total parenteral nutrition for at least 2 weeks. If chyle flow has not diminished by that time then thoracic duct ligation should be considered.     

Chylothorax after neck dissection for thyroid carcinomas: report of three cases

Chylothorax is a rare complication of neck dissection. We report three cases of chylothorax after neck dissections for thyroid carcinoma and attribute this relatively high incidence to the assumption that most patients are asymptomatic. Thus, conventional chest X-ray or ultrasonography in the early postoperative period may be warranted to exclude asymptomatic chylothorax, especially if the thoracic duct is injured and ligated during the operation. We suggest that for chylothorax induced by ligation of the thoracic duct, which may be transient and resolve quickly, short-term thoracic drainage is enough.     

Chylothorax after cardiothoracic surgery

8 patients with postoperative chylothorax were reported: 7 after resection of esophageal carcinoma, 1 after radical correction of tetralogy of Fallot. 1 case was treated conservatively and 7 by ligation of thoracic duct after rethoracotomy. All the cases recovered. The factors causing postoperative chylothorax, the principles of treatment, and the role of prophylactic ligation of thoracic duct were discussed. The authors point out that, the mechanisms of postoperative chylothorax after open heart surgery by sternotomy may be: (1) injury of perithymotic and anterior mediastinal lymph ducts; (2) injury of thoracic duct through posterior wall of pericardium; and (3) effect of hypertension of systemic veins on flow of thoracic duct.     

Successful management of severe unremitting chylothorax after thoraci trauma

Post-traumatic chylothorax needs surgical approach when conservative treatment is not successful to reduce chyle leakage. Thoracic duct ligation requires thoracoscopic or thoracotomic access. The authors report on a surgical thoracotomic approach to a severe and unremitting thoracic duct lesion after IX and X ribs and vertebral fractures.     

A review of traumatic chylothorax

BackgroundTraumatic chylothorax is an extremely rare complication following thoracic trauma or surgery. The aetiology of traumatic chylothorax is dominated by iatrogenic causes, with a reported incidence of 0.5% to 3% following oesophageal surgery. The mortality from a chylothorax post oesophagectomy can be as high as 50%. Iatrogenic causes in total account for approximately 80% of traumatic causes. Non-iatrogenic traumatic chylothoraces are exceedingly uncommon. The complication rate in blunt thoracic trauma is said to be 0.2% to 3%, whilst in penetrating trauma, the incidence is 0.9% to 1.3%. If recognised late or managed poorly, this condition has devastating complications, including nutritional depletion, physiological derangements and immunological depression. This review revisits the anatomy of the thoracic duct, the physiology of chyle production and associated dynamics as well as the current management strategies available for traumatic chylothorax.MethodsA review of selected English literature from 1980 to 2015 was undertaken. Databases used included Pubmed, Cochrane and Science Direct. Publications of both traumatic and postoperative chylothorax were reviewed. The appropriate literature was analysed by comparing and contrasting content with particular emphasis on management issues. Keywords and phrases were used to achieve a streamlined and focused review of the topic.ConclusionChylothorax remains a rare complication of thoracic surgery and thoracic trauma. The potential complications can result in serious morbidity and can even be fatal. Understanding the pathophysiology of a chyle leak underpins the principles of management. The overall success of conservative management ranges from 20% to 80%. The timing of surgical intervention remains debatable. Benefits of early surgical intervention are clearly documented, resulting in a gradual shift toward early operative treatment with reports suggesting thoracic duct ligation yielding a 90% success rate. Technological advances such as thoracic duct embolisation, with a potential success rate of 90%, and thoracoscopic interventions are attractive alternatives to orthodox open surgery.     

Thoracoscopic thoracic duct ligation for traumatic chylothorax

Traumatic chylothorax requires surgical intervention when conservative medical management fails to reduce chyle leakage. This usually entails thoracotomy or laparotomy. We report a case in which successful ligation of a torn thoracic duct was achieved using a video-assisted thoracoscopic technique.     

BILATERAL CHYLOTHORAX

A 2.5-kg female developed bilateral chylothoraces 10 days aftersurgery for coarctation of the aorta. Initial conservative managementconsisted of intermittent positive pressure ventilation, drainageof chylous fluid and enteral feeding, but there was no diminutionin loss of chyle. Ligation of the thoracic duct and pleurectomywere performed subsequently to reduce the large daily lossesof chyle, amounting to nearly three times the child's circulatingblood volume. Brawny oedema of the right upper quadrant of thebody developed rapidly after the duct ligation and right pleurectomy.A further period of conservative treatment was required beforethe latter complication resolved. The literature relating tothis iatrogenic complication and to fluid and nutritional lossesin paediatric chylothorax is reviewed and discussed.     

Treatment of symptomatic primary chylous disorders.

PURPOSE: Primary chylous disorders (PCDs) are rare. Rupture of dilated lymph vessels (lymphangiectasia) may result in chylous ascites, chylothorax, or leakage of chyle through chylocutanous fistulas in the lower limbs or genitalia. Chyle may reflux through incompetent lymphatics, causing lymphedema. To assess the efficacy of surgical treatment, we reviewed our experience. METHODS: The clinical data of 35 patients with PCDs treated between January 1, 1976, and August 31, 2000, were reviewed retrospectively. RESULTS: Fifteen men and 20 women (mean age, 29 years; range, 1 day-81 years) presented with PCDs. Sixteen (46%) patients had chylous ascites, and 19 (54%) had chylothorax (20 patients), and of these, 10 (29%) had both. In 16 patients, reflux of chyle into the pelvic or lower limb lymphatics caused lymphedema (14, 88%) or lymphatic leak through cutaneous fistulae (11, 69%). Presenting symptoms included lower-limb edema (19, 54%), dyspnea (17, 49%), scrotal or labial edema (15, 43%), or abdominal distention (13, 37%). Primary lymphangiectasia presented alone in 23 patients (66%), and it was associated with clinical syndromes or additional pathologic findings in 12 (yellow nail syndrome in 4, lymphangiomyomatosis in 3, unknown in 3, Prasad syndrome (hypogammaglobulinemia, lymphadenopathy, and pulmonary insufficiency) in 1, and thoracic duct cyst in 1). Twenty-one (60%) patients underwent 26 surgical procedures. Preoperative imaging included computed tomography scan in 15 patients, magnetic resonance imaging in 3, lymphoscintigraphy in 12, and lymphangiography in 14. Fifteen patients underwent 18 procedures for chylous ascites or pelvic reflux. Ten (56%) procedures were resection of retroperitoneal/mesenteric lymphatics with or without sclerotherapy of lymphatics, 4 (22%) were lymphovenous anastomoses or grafts, 3 (17%) were peritoneovenous shunts, and 1 (6%) patient had a hysterectomy. Six patients underwent eight procedures for chylothorax, including thoracotomy with decortication and pleurodesis (4 procedures), thoracoscopic decortication (1 patient), ligation of thoracic duct (2 procedures), and resection of thoracic duct cyst (1 patient). Postoperative mean follow-up was 54 months (range, 0.3-276). Early complications included wound infections in 3 patients, elevated liver enzymes in 1, and peritoneovenous shunt occlusion with innominate vein occlusion in 1. All patients improved initially, but four (19%) had recurrence of symptoms at a mean of 25 months (range, 1-43). Three patients had postoperative lymphoscintigraphy confirming improved lymphatic transport and diminished reflux. One patient died 12 years postoperatively, from causes unrelated to PCD. CONCLUSIONS: More than half of the patients with PCDs require surgical treatment, and surgery should be considered in patients with significant symptoms of PCD. Lymphangiography is recommended to determine anatomy and the site of the lymphatic leak, especially if lymphovenous grafting is planned. All patients had initial benefit postoperatively and two thirds of patients demonstrated durable clinical improvement after surgical treatment.     

Intraoperative fluorescence lymphography using indocyanine green in a patient with chylothorax after esophagectomy: report of a case

We report a case of chylothorax treated successfully by a new diagnostic tool: indocyanine green (ICG) fluorescence lymphography. The patient, a 65-year-old man with adenocarcinoma of the esophagogastric junction, underwent radical esophagectomy, which was followed by the development of chylothorax. On postoperative day 10, we performed transabdominal ligation of the thoracic duct. During the re-operation, we injected ICG into the mesentery of the small bowel. We then performed mass ligation of the tissue right and dorsal of the aorta, including the thoracic duct, after which a near-infrared camera system revealed a fluorescent stripe on the caudal part of the ligation. The remnant thoracic duct appeared to be dilated as a result of lymphatic stasis. The patient was discharged 35 days after his initial surgery. We report this case to demonstrate the usefulness of intraoperative ICG lymphography as a tool to identify and confirm ligation of the thoracic duct transabdominally.     

Supradiaphragmatic thoracic duct clipping for chylothorax through left-sided video-assisted thoracoscopic surgery.

Chylothorax is a life-threatening clinical entity. Traditional surgical management for cases refractory to conservative treatment is thoracic duct ligation through a right open thoracotomy or closure of the site of duct laceration through an open thoracotomy. We report herein two patients with left chylothorax successfully treated by supradiaphragmatic thoracic duct (STD) ligation through left-sided video-assisted thoracoscopic surgery (VATS). This approach offers optimal exposure for the thoracic duct ligation and is useful for treatment of left chylothorax after left-sided thoracic surgery and idiopathic left chylothorax.     

Video-assisted right supradiaphragmatic thoracic duct ligation for non-traumatic recurrent chylothorax.

BACKGROUND: Chylothorax is an uncommon disorder with respiratory, nutritional and immunological manifestations. Surgical management is indicated in case of recurrence or failure after conservative treatment. We report our experience with video-assisted right-sided supradiaphragmatic thoracic duct ligation for non-traumatic, non-postoperative persistent or recurrent chylothorax. PATIENTS AND METHODS: The medical records of six patients operated at our institution between 1999 and 2004 were retrospectively reviewed. A right-sided chylothorax was found in four patients, a left-sided in one, and a bilateral in one. Three patients developed chylothorax after chemotherapy and chest irradiation for malignant diseases (lymphoma in two patients and breast cancer in one), one in the context of lymphangioleiomyomatosis, one due to a non-diagnosed lymphoma, and one after heart transplantation. RESULTS: The mean operative time was 102 min, with an average length of hospital stay of 14 days. Persistent cessation of chylous effusion within 7 days after surgery was observed in 5/6 patients without recurrence during a mean follow-up time of 41 months. One patient with undiagnosed mediastinal lymphoma required re-operation and thoracic duct ligation on day 8 by right-sided thoracotomy due to persistent chylothorax. No 30-day mortality was recorded. Two patients presented postoperative complications including respiratory insufficiency requiring mechanical ventilation in one, and chylous ascites development requiring peritoneo-venous LeVeen shunting in one patient. CONCLUSIONS: Recurrent or persistent non-traumatic chylothorax may be successfully treated by video-assisted right supradiaphragmatic thoracic duct ligation.     

结扎胸导管预防不同部位胸段食管癌切除术后乳糜胸的疗效分析

目的分析术中结扎胸导管对不同部位胸段食管癌患者手术后预防发生乳糜胸的作用。方法对2003年3月至2007年6月手术切除的胸段食管癌243例患者的临床资料进行回顾性分析。根据不同病变部位将患者分为上段、中上段、中段、中下段和下段5组，了解不同部位胸段食管癌患者术中结扎和不结扎胸导管与术后乳糜胸发生有无相关性。结果术后共计8例患者出现乳糜胸，总发生率3．3％。上段病变结扎组乳糜胸发生3例，未结扎组5例；中上段病变结扎组和未结扎组均未发生乳糜胸；中段病变未结扎组1／28（3．6％）；中下段病变结扎组乳糜胸发生率1／39（2．6％），未结扎组1／35（2．9％）；下段病变结扎组乳糜胸发生率1／37（2．7％），未结扎组2／44（4．5％）。Logistic回归分析显示。不同部位胸段食管癌切除术中是否结扎胸导管结扎对术后乳糜胸的发生均无影响（P〉0．05）。结论预防性结扎胸导管不能降低不同部位胸段食管癌术后继发乳糜胸的发生率。