Adoption of a chylothorax management protocol is feasible, and in our small cohort of patients implementation led to a significant decrease in the duration of chest tube utilisation, while eliminating practice variability among providers.
Objective: A standardised multi-site approach to manage paediatric post-operative chylothorax does not exist and leads to unnecessary practice variation. The Chylothorax Work Group utilised the Pediatric Critical Care Consortium infrastructure to address this gap. Methods: Over 60 multi-disciplinary providers representing 22 centres convened virtually as a quality initiative to develop an algorithm to manage paediatric post-operative chylothorax. Agreement was objectively quantified for each recommendation in the algorithm by utilising an anonymous survey. “Consensus” was defined as ≥ 80% of responses as “agree” or “strongly agree” to a recommendation. In order to determine if the algorithm recommendations would be correctly interpreted in the clinical environment, we developed ex vivo simulations and surveyed patients who developed the algorithm and patients who did not. Results: The algorithm is intended for all children (<18 years of age) within 30 days of cardiac surgery. It contains rationale for 11 central chylothorax management recommendations; diagnostic criteria and evaluation, trial of fat-modified diet, stratification by volume of daily output, timing of first-line medical therapy for “low” and “high” volume patients, and timing and duration of fat-modified diet. All recommendations achieved “consensus” (agreement >80%) by the workgroup (range 81–100%). Ex vivo simulations demonstrated good understanding by developers (range 94–100%) and non-developers (73%–100%). Conclusions: The quality improvement effort represents the first multi-site algorithm for the management of paediatric post-operative chylothorax. The algorithm includes transparent and objective measures of agreement and understanding. Agreement to the algorithm recommendations was >80%, and overall understanding was 94%.
Introduction: The Pediatric Extracorporeal Membrane Oxygenation Prediction (PEP) model was created to provide risk stratification for all pediatric patients requiring extracorporeal life support (ECLS). Our purpose was to externally validate the model using contemporaneous cases submitted to the Extracorporeal Life Support Organization (ELSO) registry. Methods: This multicenter, retrospective analysis included pediatric patients (<19 years) during their initial ECLS run for all indications between January 2012 and September 2014. Median values from the BATE dataset for activated partial thromboplastin time and internationalized normalized ratio were used as surrogates as these were missing in the ELSO group. Model discrimination was evaluated using area under the receiver operating characteristic curve (AUC), and goodness-of-fit was evaluated using the Hosmer-Lemeshow test. Results: A total of 4,342 patients in the ELSO registry were compared to 514 subjects from the bleeding and thrombosis on extracorporeal membrane oxygenation (BATE) dataset used to develop the PEP model. Overall mortality was similar (42% ELSO vs. 45% BATE). The c-statistic after external validation decreased from 0.75 to 0.64 and model calibration decreases most in the highest risk deciles. Conclusion: Discrimination of the PEP model remains modest after external validation using the largest pediatric ECLS cohort. While the model overestimates mortality for the highest risk patients, it remains the only prediction model applicable to both neonates and pediatric patients who require ECLS for any indication and thus maintains potential for application in research and quality benchmarking.
Introduction: Chylothorax after congenital cardiac surgery is associated with increased risk of malnutrition. Nutritional management following chylothorax diagnosis varies across sites and patient populations, and a standardised approach has not been disseminated. The aim of this review article is to provide contemporary recommendations related to nutritional management of chylothorax to minimise risk of malnutrition. Methods: The management guidelines were developed by consensus across four dietitians, one nurse practitioner, and two physicians with a cumulative 52 years of experience caring for children with CHD. A PubMed database search for relevant literature included the terms chylothorax, paediatric, postoperative, CHD, chylothorax management, growth failure, and malnutrition. Results: Fat-modified diets and nil per os therapies for all paediatric patients (<18 years of age) following cardiac surgery are highlighted in this review. Specific emphasis on strategies for treatment, duration of therapies, optimisation of nutrition including nutrition-focused lab monitoring, and supplementation strategies are provided. Conclusions: Our deliverable is a clinically useful guide for the nutritional management of chylothorax following paediatric cardiac surgery.
Objective: To determine the Final ICU Need in the 24 hours prior to ICU discharge for children with cardiac disease by utilising a single-centre survey. Methods: A cross-sectional survey was utilised to determine Final ICU Need, which was categorised as “Cardiovascular”, “Respiratory”, “Feeding”, “Sedation”, “Systems Issue”, or “Other” for each encounter. Survey responses were obtained from attending physicians who discharged children (≤18 years of age with ICU length of stay >24 hours) from the Cardiac ICU between April 2016 and July 2018. Measurements and results: Survey response rate was 99% (n = 1073), with 667 encounters eligible for analysis. “Cardiovascular” (61%) and “Respiratory” (26%) were the most frequently chosen Final ICU Needs. From a multivariable mixed effects logistic regression model fitted to “Cardiovascular” and “Respiratory”, operations with significantly reduced odds of having “Cardiovascular” Final ICU Need included Glenn palliation (p = 0.003), total anomalous pulmonary venous connection repair (p = 0.024), truncus arteriosus repair (p = 0.044), and vascular ring repair (p < 0.001). Short lengths of stay (<7.9 days) had significantly higher odds of “Cardiovascular” Final ICU Need (p < 0.001). “Cardiovascular” and “Respiratory” Final ICU Needs were also associated with provider and ICU discharge season. Conclusions: Final ICU Need is a novel metric to identify variations in Cardiac ICU utilisation and clinical trajectories. Final ICU Need was significantly influenced by benchmark operation, length of stay, provider, and season. Future applications of Final ICU Need include targeting quality and research initiatives, calibrating provider and family expectations, and identifying provider-level variability in care processes and mental models.
Background: Earlier diagnosis of chylothorax following pediatric cardiac surgery is associated with decreased duration of chylothorax. Pleural uid 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 uid testing in pediatric patients following cardiac surgery.Methods: A Multivariable logistic regression model was developed to detect chylothorax using a stepwise approach. The model was developed using data from patients <18 years 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.Results: A total of 763 encounters (735 patients) were analyzed, of which 72 had chylothorax. The nal variables selected were chest tube output (CTO) the day after sternal closure (dichotomized at 15.6 mL/kg/day, and as a continuous variable) and delayed sternal closure. The highest odds of chylothorax was 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) Conclusions: Using the models described, chylothorax after pediatric cardiac surgery may be detected earlier and without reliance on enteral feeds.
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