Diagnosis Of Chylothorax Research Articles

Utility of an Alpha-1 Adrenergic Agonist in the Management of Chylothorax: A Case Series and Management Algorithm.

The initial diagnosis of chylothorax is based on clinical suspicion and proper imaging.The clinical success of midodrine use as a first-line medical treatment for chylothorax will support the use of midodrine before considering invasive procedures.We propose a management algorithm for patients with chylothorax that will stimulate researchers to conduct prospective studies to assess its efficacy.

ABORD ANTEROLATERAL DE LA CHARNIERE THORACO-LOMBAIRE : EXPERIENCE D’UN CAS AVEC CHYLOTHORAX PAR PLAIE IATROGENE DU CANAL THORACIQUE.

Despite its advantages, the anterolateral approach to the thoracolumbar spine can present several complications including chylothorax. We present a rare case of thoracic duct injury secondary to an anterolateral surgical approach to the thoracolumbar spine post-vertebromedullary trauma which was successfully treated non-surgically. Observation: This is a 35-year-old patient, hospitalized for the treatment of a spinal trauma whose radiological assessment revealed a type A3 fracture of the 12th thoracic vertebra according to the Ao-spine classification. He had benefited from a corpectomy of the same vertebra followed by the placement of an interbody implant via an anterolateral approach with thoraco-phrenotomy. The immediate aftermath of the operation was marked by the presence in the chest drain of a white lactescent liquid, the chemical study of which revealed the presence of chylomicrons by electrophoresis, lipoproteins and a triglyceride level of 80 g/l, confirming the diagnosis of chylothorax. Conservative medical treatment was instituted consisting of chest drainage for 3 weeks and parenteral nutrition which allowed complete recovery. Conclusion: Iatrogenic chylothorax represents a rare cause of pleural effusion. This case reflects a successful approach to the management of post-dorsal spine surgery lymph leak via anterolateral approach, using drainage and strict dietary changes, which precluded the need for thoracic duct repair surgery. Keywords: Anterolateral approach, Chylothorax, Conservative treatment,

Bilateral Pleural Chylothorax from A Blunt Chest Trauma

Introduction: Bilateral traumatic chylothorax is a very rare condition. Approximately80% of chylothorax are unilateral and usually 2/3 of cases on the right side [1]. The chyle leakage shows a milky white appearance, inexhaustible, in a consideration amount. Purpose: To report the management of bilateral traumatic chylothorax as a very rare condition. Material and methods: We present a patient with bilateral pleural chylothorax from a blunt chest trauma which is combined with a vertebral thoracal fracture of Th8, Th10.We present the diagnostic basis, treatment and evolution of chilies leakage. Results: A 36 years old man involved in a car crash. He was hospitalized with a diagnose such as right pleural effusion and thoracal vertebral fractures of the Th8, Th10.2 days after trauma the scan examination showed a large amount of effusion in the right hemithorax and minimal effusion in the left hemithorax. From the drainage tube in the right pleural cavity there was a flow of about 1000ml with a milky appearance. The biochemical analyses of the pleural effusion showed the presence of triglycerides with more than 1.24mmol /l and the cholesterol level with less than 5.18mmol/l which support the diagnosis of chylothorax. Initial treatment was conservative. A zero nutritional regimen was implemented for the first 10 days, being replaced by total parenteral nutrition such as plasma, albumin, electrolytes, vitamins. After that we passed to a fat-free nutritional diet. In the scan examination 6 days after the trauma, there was an increase in the amount of pleural effusion on the left side. A chest tube was performed from which there was 700 ml leakage, which had the appearance of chyle. The biochemical tests confirmed the diagnose of chylothorax. The chest tube of the left pleural cavity was removed after 5 days. The chyle leakage from the right pleural cavity has continued for about 3 weeks in a quantity ranging from 150-300 ml in 24 hours. After this period, approximately for 1 week the chyle leakage was in an amount of less than 1000ml in 24 hours. In the 5th week, the chest tube was removed, since the leaks were reduced to about 20-30 ml in 24 hours. The patient left the hospital after 30 days. The patient was completely recovered. Conclusions: The case was managed conservatively, based on a bilateral pleural drainage and a diet without fats, which proved to be successful.

Tuberculous Dactilitis in Young Male, a Rare Case

Introduction : Chylothorax is an uncommon medical condition caused by the accumulation of chylous fluid in the pleural space. Chylothorax has no predilection for sex or age. The prevalence after various cardiothoracic surgeries is 0.2% to 1%. Mortality and morbidity rates are around 10%. Respiratory distress may occur due to compression of the lung by the accumulated fluid. Management and approaches to treating the condition require multidisciplinary therapy, starting from non-pharmacological, pharmacological, to interventional management. Case Report : A 57-year-old Man patient was referred to the emergency room with chief complaint of shortness of breath. Reduced breathing sound on both lung fields. No previous history of cancer or thoracic surgery were found. X-ray examination had found bilateral pleural effusion. Thoracocentesis and pleural fluid analysis was performed with total of 6800 cc serosanguinous, whitish fluid was extracted from both of the lung. The patient was diagnosed with chylothorax. Lymphangiography and embolization was performed on the leak on left thoracic duct (T10) from right lymph node. Antibiotic was also given to treat the community acquired pneumonia that could be one of the possible etiology on this patient. Dietary modification with low fat diet and Ocreotide was also given to this patient as one of the treatment modalities. Discussion : The diagnosis of Chylothorax on this patient was established based on pleural fluid analysis and evidenced by lymphangiography examination by the presence of a leak in the thoracic lymphatic duct. Various modalities to diagnose this condition have been carried out with inconclusive results. Non-pharmacological, pharmacological and radiological interventions with embolization through lymphangiography are proven to be able to stop leaks and reduce symptoms in this patient. Conclusion : Chyle leak to the pleural space may compress the lung and cause respiratory distress. Combinaton of thoracocentesis, embolization of the leakage, dietary intake modification and administration of ocreotide may help prevent further chylous fluid accumulation.

Cough-induced chylothorax in a two-year-old boy – case report and review of the literature

BackgroundChylothorax is a very rare form of pleural effusion in children, especially after the neonatal period, and predominantly occurs secondary to cardiothoracic surgery. It can lead to significant respiratory distress, immunodeficiency, and malnutrition. Effective treatment strategies are therefore required to reduce morbidity.Case presentationA previously healthy two-year old boy was admitted with history of heavy coughing followed by progressive dyspnea. The chest X-ray showed an extensive opacification of the right lung. Ultrasound studies revealed a large pleural effusion of the right hemithorax. Pleural fluid analysis delivered the unusual diagnosis of chylothorax, most likely induced by preceded excessive coughing. After an unsuccessful treatment attempt with a fat-free diet and continuous pleural drainage for two weeks, therapy with octreotide was initiated. This led to complete and permanent resolution of his pleural effusion within 15 days, without any side effects.ConclusionsSevere cough may be a rare cause of chylothorax in young children. Octreotide seems to be an effective and safe treatment of spontaneous or traumatic chylothorax in children.There is, however, a lack of comprehensive studies for chylothorax in children and many issues concerning diagnostic strategies and treatment algorithms remain.

Chylothorax After Heart Surgery in Children.

Chylothorax is a consequence of a thoracic duct injury that can occur during surgical procedures in patients with congenital heart disease. It is associated with high rates of morbimortality and increased use of clinical and hospital resources. The aim of this study was to evaluate the risk factors, distribution, manifestations, complications, and treatments for chylothorax in patients undergoing cardiac surgery in a tertiary pediatric hospital in southern Brazil. This is a retrospective, quantitative study, in which all medical records (n = 166) of patients with chylothorax after pediatric cardiac surgery between January 2014 and December of 2020 and a matched control group (n = 166) were analyzed. Over the study period, there was an increase in incidence of chylothorax from 4.5% in 2014 to 7.6% in 2020, a trend that has been reported in the literature. After multivariate analysis, the following were identified as risk factors for the diagnosis of chylothorax: genetic syndrome (OR 2.298); prolonged cardiopulmonary bypass time (greater than 120min) (OR 2.410); fluid overload in the immediate postoperative period (OR 1.110); and SIRS (OR 2.527). Mortality was two times greater (p = 0.021) and there was a higher rate (34.4%) of infection (p < 0.001) in patients who developed chylothorax. In addition, a sensitivity analysis was performed comparing patients with low- and high-output chylothorax (> 20 mL/kg), which confirmed unfavorable outcomes for the latter group. Herein, we show that hemodynamic alterations were important factors for diagnosis. Understanding the risk factors, outcomes, and complications helps early identification and enables the reduction of morbidity and mortality.

Lymphoscintigraphy findings in patients with chylothorax: influence of biochemical parameters

BackgroundChylothorax is a condition that can be challenging to diagnose due to its nonspecific clinical presentation. Several biochemical parameters of chylous pleural effusion have been identified as important indicators for the diagnosis of chylothorax. Lymphoscintigraphy is utilized to assess chylothorax and determine the location of chyle leakage. The present study aimed to evaluate the correlation between the biochemical parameters of chylous pleural effusion and 99mTc-dextran (99mTc-DX) lymphoscintigraphy in diagnosing chylothorax.Material and methodsA total of 120 patients were enrolled in the study, 83 of the patients with unilateral chylothorax, and 37 with bilateral chylothorax. All patients underwent both 99mTc-DX lymphoscintigraphy and pleural effusion laboratory analysis. The 99mTc-DX lymphoscintigraphy images were categorized as positive or negative groups based on the presence or absence of abnormal radioactive tracer accumulation in the thorax, respectively. The biochemical parameters of the two groups were subsequently compared.ResultsAmong these patients, 101 (84.17%) had exudative effusions, while 19 (15.83%) had transudative effusions, as determined by the levels of pleural effusion protein, lactate dehydrogenase and cholesterol. Abnormal tracer accumulation in thorax was observed in 82 patients (68.33%). Our findings indicated that lymphoscintigraphy results were not associated with exudative and transudative chylothorax (P = 0.597). The lymphoscintigraphy positive group displayed significantly higher levels of pleural effusion triglyceride and pleural effusion triglyceride/serum triglyceride ratio in all biochemical parameters, compared to the negative group (P = 0.000 and P = 0.005). We identified cutoff values of 2.870 mmol/L for pleural effusion triglycerides and 4.625 for pleural effusion triglyceride/serum triglyceride ratio, respectively, which can facilitate differentiating the positive and negative cases on lymphoscintigraphy.ConclusionLymphoscintigraphy technique is a dependable diagnostic tool for the qualitative assessment of chylous pleural effusion. Higher pleural effusion triglyceride level and pleural effusion triglyceride/serum triglyceride ratio indicate a positive result in patients with chylothorax on lymphoscintigraphy, with the cutoff values of 2.870 mmol/L and 4.625 aiding in the diagnosis.

Chylothorax Management Four Years Post Spine Surgery: A Successful Conservative Treatment

Background: Chylothorax is a pathological condition associated with a high mortality and morbidity rate. The first observation of chylothorax associated with thoracic vertebral injury was documented by Krabbell in 1885. Since then, several cases have been described in the literature.&#x0D; Non traumatic chylothorax several years after spine surgery is a rare condition. We described a case of a patient who sustained a thoracic spine fracture-dislocation and presented with a right sided chylothorax as a late complication to his thoracic spine trauma. A right thoracentesis was performed, providing partial relief of respiratory symptoms. The collected fluid was sent to the laboratory for further examination. Biochemical analysis of the milky pleural fluid confirmed the suspicion of chylothorax, with elevated levels of triglycerides and lymphocytes. These findings supported the diagnosis of chylothorax.&#x0D; Conclusion: Non-traumatic chylothorax occurring several years after spine surgery is a rare condition, and there is limited literature available on this particular pathology. The diagnosis can be simplified through laboratory examination of the milky fluid. Conservative treatment is typically the approach of choice in the majority of cases, involving total parenteral nutrition and the insertion of a chest tube into the chest cavity, followed by chemical pleurodesis.

Risk factors and early outcomes of chylothorax following congenital cardiac surgery: A single-center experience.

This study aims to investigate the incidence and risk factors for chylothorax and to evaluate the effect of chylothorax on the early postoperative outcomes following congenital cardiac surgery. A total of 1,053 patients (606 males, 447 females; median age: 12 months; range, 3 days to 48 years) who underwent surgery for congenital heart disease at our institute between January 2018 and December 2019 were retrospectively analyzed. Patients with chylothorax were identified and the data of this cohort was compared with the entire study population. Following the diagnosis of chylothorax, a standardized management protocol was applied to all patients. Of 1,053 patients operated, 78 (7.4%) were diagnosed with chylothorax. In the univariate analysis, younger age, peritoneal dialysis, preoperative need for mechanical ventilation, surgical complexity, delayed sternal closure, high vasoactive inotrope score in the first 24 h after operation, residual or additional cardiac lesions which required reoperations were found to be the risk factors for chylothorax (p<0.05). In the multivariate analysis, the correlation persisted with only younger age, infections, and peritoneal dialysis requirement (p<0.05). In the chylothorax group, ventilation times were longer, and re-intubation and infection rates were higher (p<0.05). Although the length of intensive care unit and hospital stay was significantly longer in this patient group, there was no significant association between the development of chylothorax and in-hospital mortality (p>0.05). Chylothorax following congenital cardiac surgery is a significant problem which prolongs the length of hospital stay and increases the infection rates. Complex cardiac pathologies which require surgery at early ages and re-operations are risk factors for chylothorax. Although there is no consensus on the most optimal therapeutic strategy, standardizing the management protocol may improve the results.

Prediction Model with External Validation for Early Detection of Postoperative Pediatric Chylothorax.

Earlier diagnosis of chylothorax following pediatric cardiac surgery is associated with decreased duration of chylothorax. Pleural fluid testing is used to diagnosis chylothorax which may delay detection in patients who are not enterally fed at time of chylothorax onset. Our aim was to develop and externally validate a prediction model to detect chylothorax earlier than pleural fluid testing in pediatric patients following cardiac surgery. A multivariable logistic regression model was developed to detect chylothorax using a stepwise approach. The model was developed using data from patients < 18years following cardiac surgery from Primary Children's Hospital, a tertiary-care academic center, between 2017 and 2020. External validation used a contemporary cohort (n = 171) from Lucille Packard Children's Hospital. A total of 763 encounters (735 patients) were analyzed, of which 72 had chylothorax. The final variables selected were chest tube output (CTO) the day after sternal closure (dichotomized at 15.6mL/kg/day, and as a continuous variable) and delayed sternal closure. The highest odds of chylothorax were associated with CTO on post-sternal closure day 1 > 15.6mL/kg/day (odds ratio 11.3, 95% CI 6,3, 21.3). The c-statistic for the internal and external validation datasets using the dichotomized CTO variable were 0.78 (95% CI 0.73, 0.82) and 0.84 (95% CI, 0.78, 0.9) and performance improved when using CTO as a continuous variable (OR 0.84, CI: 95% CI 0.80, 0.87). Using the models described, chylothorax after pediatric cardiac surgery may be detected earlier and without reliance on enteral feeds.

Evaluation of Clinical Findings in Children with Chylothorax: A Descriptive Study.

Chylothorax refers to the presence of chyle in the pleural space. There are multiple etiologies of chylothorax. Our aim in this study was to evaluate the clinical manifestations, causes, and treatment of chylothorax in childhood and also to show the differences between the 2 age groups admitted to a tertiary care children's hospital. The second aim was to evaluate the clinical and radiologic features of patients diagnosed as having Gorham-Stout disease via chylothorax. The archives were reviewed for chylothorax documented in the last 31 years. Twenty-two patients (11 girls and 11 boys) were included. Patients were divided into 2 groups: the younger group aged under 24 months and the older group aged over 24 months. A total of 22 patients had chylothorax, and 10 were aged younger than 24 months. In the younger group, etiologies were in order congenital heart surgery, congenital chylothorax, and Gorham-Stout disease. In the older group, etiologies were Gorham-Stout disease, congenital heart surgery, heart failure, heart transplantation, thrombus, intestinal lymphangiectasia, and idiopathic. The most common treatment in the younger group was the medium-chain triglyceride diet (70%), and in the older group, it was sirolimus (50%). There is a wide variety of underlying etiologies in childhood, so a multidisciplinary approach is important to identify the underlying diagnosis. The common etiologies were postoperative and Gorham-Stout disease in our study. All patients with Gorham-Stout disease had a good prognosis. Gorham-Stout disease should be considered in patients of any age with a diagnosis of chylothorax who have bone lesions.

Chylothorax in the Setting of Lung Malignancy.

Chylothorax refers to chyle within the pleural space, which frequently arises from an interruption in the thoracic duct or because of reduced lymphatic drainage. Pleural fluid that is white/milky in appearance, with a triglyceride concentration of greater than 110 mg/dL, strongly supports the diagnosis of chylothorax. Chylothorax is nearly always exudative. Transudative chylothorax is extremely rare and typically presents due to a secondary cause, such as liver cirrhosis, nephrotic syndrome, or congestive heart failure. We present a case of chylothorax that occurs in the setting of lung adenocarcinoma. A 65-year-old African American man with a past medical history of metastatic right lung adenocarcinoma presented with dyspnea and palpitations. He denied fever, orthopnea, and paroxysmal nocturnal dyspnea. Therapeutic drainage of the left pleural effusion resulted in 650 mL of milky-white fluid. Pleural fluid analysis demonstrated a triglyceride concentration of 520 mg/dL, a pleural/serum protein ratio of 0.41, a pleural/serum lactate dehydrogenase (LDH) ratio of 0.26, a total pleural LDH of 127 IU/L, and a cholesterol level of 58 mg/dL. This effusion can be classified as transudative as per Light's criteria and exudative as per Heffner's and pleural cholesterol criteria. A subsequent pleural fluid cytology found malignant cells consistent with lung adenocarcinoma. Malignancy is the most common cause of nontraumatic, exudative chylothorax. Light's criteria misinterpret about 25% of transudative effusions as exudative. Therefore, to minimize this error, a combination of the 3-criterial consideration is ideal.

"COUGHING CHYLOTHORAX": TRAUMATIC NONIATROGENIC THORACIC DUCT LEAK

"COUGHING CHYLOTHORAX": TRAUMATIC NONIATROGENIC THORACIC DUCT LEAK

The biochemistry part in the diagnosis of chylothorax and chyle effusion

Background and Aims : Background Chylothorax and chyle effusion are rare lymphatic disorders which characterize by an abnormal circulation of lymph fluid in the pleural, pericardia and peritoneal cavities. They commonly occur in neonatal period and after surgery cut in the thoracic duct. Aim: We developed a biological decision tree for the diagnosis of chylothorax and chyle effusion, based on the aspect of the liquid, the assays of triglycerides (TG), total cholesterol (TC) and glycerol and the lipidogram (LPG) that separates the different lipoproteins depending on their electrophoretic charge, and allows to detect the presence of chylomicrons.Methods: We selected 178 patients from January to October 2021; were excluded purulent or viscous liquids, liquids with analytical interferences (n=5), and redundant liquids that were collected several times for clinical follow-up (n=48). We performed on the remaining liquids (n=125) lipid parameters and lipidogram .Results: Among the 125 liquids, we detected 69 liquids with the presence of chylomicron via the lipidogram (LPG+) and 56 liquids without chylomicrons (LPG-). When we compared the two groups, we observed in the LPG(+) group, 44 male, with a median for TG 2.64 mmol/L (p<0.0001), for TC 1.37 mmol/L (p=0.06), only 3 patients have a glycerol >0.5 mmol/L, and the chylomicron fraction in LPG represented 12.30 % (p<0.0001)Conclusions: Conclusion: Chylothorax and chyle effusions are rare lymphatic disorders, requiring rapid diagnosis based on biological process including lipid parameters as triglycerides assays and lipidogram as a confirmation test. Early biological detection of chylomicrons, allows a successful follow-up and treatment. Background and Aims : Background Chylothorax and chyle effusion are rare lymphatic disorders which characterize by an abnormal circulation of lymph fluid in the pleural, pericardia and peritoneal cavities. They commonly occur in neonatal period and after surgery cut in the thoracic duct. Aim: We developed a biological decision tree for the diagnosis of chylothorax and chyle effusion, based on the aspect of the liquid, the assays of triglycerides (TG), total cholesterol (TC) and glycerol and the lipidogram (LPG) that separates the different lipoproteins depending on their electrophoretic charge, and allows to detect the presence of chylomicrons. Methods: We selected 178 patients from January to October 2021; were excluded purulent or viscous liquids, liquids with analytical interferences (n=5), and redundant liquids that were collected several times for clinical follow-up (n=48). We performed on the remaining liquids (n=125) lipid parameters and lipidogram . Results: Among the 125 liquids, we detected 69 liquids with the presence of chylomicron via the lipidogram (LPG+) and 56 liquids without chylomicrons (LPG-). When we compared the two groups, we observed in the LPG(+) group, 44 male, with a median for TG 2.64 mmol/L (p<0.0001), for TC 1.37 mmol/L (p=0.06), only 3 patients have a glycerol >0.5 mmol/L, and the chylomicron fraction in LPG represented 12.30 % (p<0.0001) Conclusions: Conclusion: Chylothorax and chyle effusions are rare lymphatic disorders, requiring rapid diagnosis based on biological process including lipid parameters as triglycerides assays and lipidogram as a confirmation test. Early biological detection of chylomicrons, allows a successful follow-up and treatment.

Assessing growth of infants with chylothorax receiving fortified skimmed human breast milk.

To learn how skimmed human milk (SHM) can be used in infants with chylothorax to support adequate weight gain and nutrition while receiving human milk. Traditional nutrition management for chylothorax is to limit long-chain triglycerides (LCTs) and provide a diet high in medium-chain triglycerides (MCTs). Transition from human milk to formula has been required to provide the ratio of MCT to LCT required to stop the accumulation of chyle. Although SHM may provide the right fat content for a baby with chylothorax, previous studies have shown slow growth in infants receiving SHM. To demonstrate that infants receiving SHM fortified with high-MCT infant formula will have age appropriate growth without re-accumulation of chyle. Between 2017 and 2019, term infants with the diagnosis of chylothorax who were previously receiving human milk and transitioned to fortified SHM were monitored for growth and reaccumulation of chyle. The six infants who were prescribed fortified SHM with high-MCT infant formula using standardized recipes did not show reaccumulation of chyle and showed positive weight gain in five of the six study patients. The infants gained a mean weight of 30.5 g/day (±19.5), and their weight z scores improved by a mean of +0.29 (±0.33). Fortified SHM is a safe treatment option that can provide adequate nutrition for the infant with chylothorax to gain weight appropriately for age.

Etiological factors and treatment of chylothorax in paediatric patients - a systematic review

Chylothorax is an accumulation of chyle in the pleural cavity. It is a relatively rare cause of pleural effusion in children and its annual incidence is 14 cases per 100 000 children in Europe. &#x0D; The pleural fluid triglyceride level greater than 110 mg/dl with a cholesterol level lower than 200 mg/dl confirms the diagnosis of chylothorax. Medical imaging are also necessary such as a non-invasive and easily accessible lung ultrasound. Symptoms of this disease are tachypnea, dyspnea, and in some cases dry cough.&#x0D; This review aims to summarize the current literature regarding chylothorax in children, analyze its possible etiologies and treatments.&#x0D; The causes of chylothorax are varied. It may appear after surgical interventions, traumas, infections and also be congenital. Iatrogenic factors are the most common cause of chylothorax in children with cardiothoracic surgeries. Management of chylothorax can be quite complex and highly variable, depending on patient’s condition and their response to the introduced treatment. Conservative treatment consisting of nutrition therapy, chest drain, and pharmacotherapy is typically a first-line of treatment. Diet modification consist in dietary supplements enriched with medium chain triglycerides (MCT) or starting the patient on a total parenteral nutrition (TPN). In most of the analyzed cases the conservative treatment alone proved sufficient in the management of chylothorax. In case of its failure, surgical treatment was a secondary therapy choice. One of the most common surgical procedures for pleural effusion is a thoracic duct ligation (TDL) or pleurodesis and both of these methods are highly effective therapy for chylothorax.&#x0D; This review of the literature reveals a wide variety of causes and methods of treatment of chylothorax. There are no clear standards of management and the therapy is adjusted to the clinical condition of the patient.

Bilateral chylothorax: A late complication of Kawashima procedure despite normal pulmonary pressures.

IntroductionChylothorax, a relatively rare congenital heart disease early postoperative complication, is occurring more frequently due to complexity of cardiac surgeries.Presentation of caseWe present a 9-month-old boy who had hypoplastic left heart (HLH) syndrome with interrupted inferior vena cava (IVC) and bilateral superior vena cava (SVC) palliated with left sided modified Blalock-Taussig (MBT) shunt during neonatal period and second stage palliation with left sided bidirectional glen (BDG) procedure and right sided Kawashima procedure develop bilateral chylothorax two weeks after discharge.DiscussionThis is the first reported case in the literature of a patient who developed chylothorax with relatively low Fontan systemic venous pressures after a Kawashima procedure. Clinically important chylothorax may be a marker of poor long-term outcomes, demonstrating an inability to handle overwhelming lymphatic congestion.ConclusionEarly diagnosis of chylothorax in complex cardiac surgeries may permit successful conservative management.

Management of Chylothorax in Esophageal Surgery by Minimally Invasive Thoracoscopic Approach: Case Series.

Chylothorax is a rare complication, especially after esophageal cancer surgery. It may occur mainly in the thoracic stage of esophagectomy. The management of chylothorax is usually conservative, surgical reoperation with thoracic duct ligation being reserved for those cases refractory to that treatment. We discuss issues of diagnosis and therapeutic attitude, as evidenced by the literature, although a general consensus has not been established, most likely due to the low frequency of this complication. We emphasize the minimally invasive thoracoscopic approach, as it has been applied for two cases with this type of complication. A high rate of suspicion for thoracic duct injury should be maintained in all patients after esophageal surgery, with any pleural effusion entering the differential diagnosis of chylothorax.

Successfully Reducing Fat-modified Diet Duration for Treating Postoperative Chylothorax in Children

BackgroundMedical management, primarily a fat-modified diet (FMD), is the mainstay of treatment for most patients with chylothorax. Duration of FMD is traditionally reported as 6 weeks, but no studies have demonstrated the shortest effective duration that prevents recurrence of chylothorax. The aim of this study was to decrease FMD duration to 2 weeks in children with postoperative chylothorax without a significant increase in recurrence. MethodsThis single-center study included pediatric (aged <18 years) patients in whom chylothorax developed within 30 days of cardiac surgery. Patients with cavopulmonary anastomoses were excluded. The preintervention cohort consisted of 19 patients with a diagnosis of chylothorax between February 2014 and June 2015, and the postintervention cohort comprised 98 patients from July 2015 to December 2019. FMD duration was decreased from 6 weeks to 4 weeks in May 2016 and to 2 weeks in June 2018. Recurrence was defined as a return of a chylous effusion requiring chest tube placement or hospital readmission within 30 days of resuming a regular diet. ResultsThe median duration of FMD decreased from 42 days (interquartile range, 30, 43 days) in the preintervention cohort to 26 days (interquartile range, 14, 29 days) in the postintervention cohort, with no recurrence of chylothorax in any group. Compliance with the FMD duration instruction in the 6-week, 4-week, and 2-week groups was 100%, 84%, and 67% respectively. Compared with the first 6 months, compliance with the 2-week FMD instruction during the final 12 months increased from 40% (6/15) to 79% (26/33). ConclusionsAt the study center, FMD duration decreased from 6 weeks to 2 weeks without any recurrence of chylothorax.

BILATERAL CHYLOTHORAX AND ANASARCA CAUSED BY DASATINIB IN A PATIENT WITH CHRONIC MYELOGENOUS LEUKEMIA

TOPIC: Disorders of the Pleura TYPE: Medical Student/Resident Case Reports INTRODUCTION: Dasatinib is one of the tyrosine kinase inhibitors that is used in the treatment for Philadelphia positive Chronic Myeloid Leukemia (CML). Pleural effusion can occur in 10% of patients on dasatinib, but chylothorax was rarely reported as a side effect of dasatinib (1,2). CASE PRESENTATION: A 52 year-old male with medical history of CML presented with shortness of breath over the past 4months. Patient was diagnosed with CML 10 years ago. Initially he was started on imatinib which he did not tolerate secondary to headache and he was switched to dasatinib 100mg daily which he tolerated for 5 years. Bone marrow biopsy showed complete cytogenetic remission in 6-months and he achieved major molecular remission. Physical exam was remarkable for reduced air entry to both lungs, abdominal ascites, and lower extremities pitting edema up to the groins. Basic labs were within normal limits. Chest X-ray showed bilateral pleural effusions and confluent bibasilar infiltrates. Computed topography of the chest showed large bilateral effusions with passive atelectasis in the lower lobes (figure-1A and 1B). CT scan of the abdomen and pelvis showed diffuse body edema in the lower abdomen extending to both lower extremities. Large right hydrocele and moderate left hydrocele were also noticed (figure-1C). Imaging guided thoracentesis was performed on the right side and 1900 ml of milky fluid was drained. Pleural fluid analysis showed total protein of 4.6 g/dL (serum total protein:7.3 g/dL), glucose of 97 mg/dL (serum glucose: 84 mg/dL), elevated lactate dehydrogenase (116 U/L), elevated triglyceride (485 mg/dL), and elevated cholesterol (83 mg/dL). Based on that, Diagnosis of chylothorax was made and dasatinib was discontinued. Patient was started on short course of diuretics and oral prednisone. After one month of dasatinib discontinuation, patients SOB improved significantly. Abdominal and lower extremities swelling has improved too. Repeated CXR showed improved bilateral pleural effusion (figure-1D). We kept patient off dasatinib with monthly check of BCR/ABL by PCR with plan to restart dasatinib at 50 mg daily or switching to another treatment if he relapses. DISCUSSION: Pleural effusion is a known side effect of dasatinib and few reports of unilateral chylothorax have been reported. Bilateral chylothorax and anasarca are very rare side effects of dasatinib. In most of the cases, discontinuation of dasatinib can improve symptoms. In a previous case report, 63 year-old female presented with right sided dasatinib induced chylothorax which totally resolved after switching dasatinib to nilotinib (2). In another case report, the 71 year-old patient presented with dasatinib induced chylothorax that initially resolved and then recurred after re-initiation of dasatininb (3). CONCLUSIONS: Bilateral chylothorax after dasatinib is very rare. Most cases resolve completely with dasatinib discontinuation. REFERENCE #1: Kantarjian H, Shah NP, Hochhaus A, et al. Dasatinib versus imatinib in newly diagnosed chronic-phase chronic myeloid leukemia. N Engl J Med. 2010 Jun 17;362(24):2260-70. doi: 10.1056/NEJMoa1002315. Epub 2010 Jun 5. PMID: 20525995. REFERENCE #2: Al-Abcha A, Iftikhar MH, Abu Rous F, et al. Chylothorax: complication attributed to dasatinib use. BMJ Case Rep. 2019 Dec 16;12(12):e231653. doi: 10.1136/bcr-2019-231653. PMID: 31848139; PMCID: PMC6936595. REFERENCE #3: Chen B, Wu Z, Wang Q, et al. Dasatinib-induced chylothorax: report of a case and review of the literature. Invest New Drugs. 2020 Oct;38(5):1627-1632. doi: 10.1007/s10637-020-00932-3. Epub 2020 Apr 4. PMID: 32248338. DISCLOSURES: No relevant relationships by hamed daw, source=Web Response No relevant relationships by Christopher Haddad, source=Web Response No relevant relationships by Tariq Kewan, source=Web Response No relevant relationships by Talha Saleem, source=Web Response