Sigrid Bairdain - Academia.edu (original) (raw)

Papers by Sigrid Bairdain

Critical Care Medicine, 2014

Diseases of the Esophagus, 2018

Background The Foker process is used in patients with long-gap esophageal atresia (LGEA) to maint... more Background The Foker process is used in patients with long-gap esophageal atresia (LGEA) to maintain the native esophagus; however, chemical paralysis, used to ‘protect’ the esophagus, is associated with complications and longer hospital stays. The purpose of this study was to identify changes in practice patterns with increased Foker experience, and to review the relationship of paralysis time with the incidence of esophageal leaks and need for stricture resections. Methods A retrospective review of LGEA patients from January 2006 to December 2016 was performed. Patients were excluded if they had previous attempts elsewhere. Patients were initially divided into two groups: early group (surgery before 2013) and late group (2013–2016) to assess outcomes. All patients, irrespective of surgery date, were then divided into three subgroups based on esophageal anastomotic tension. Logistic regression with odds ratio (OR) and 95% confidence interval (CI) was used to assess risk of leaks an...

Bairdain et al. This is an open access article distributed under the terms of the Creative Common... more Bairdain et al. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 3.0., which permits unrestricted use, distribution, and reproduction in any medium,

Surgery for Obesity and Related Diseases

Diseases of the Esophagus

Background The objective of this study was to identify whether paralysis time following stricture... more Background The objective of this study was to identify whether paralysis time following stricture resection and tension applied at the anastomosis influenced leak rate, need for repeat stricture resection (SR), or need for an interposition graft. Methods A retrospective chart review was performed of patients undergoing esophageal stricture resection and anastomosis from October 2007 to July 2017 (IRB# P00004344). Patients who required an interposition as their primary surgery were excluded. Leak rates following stricture resection and the need for further esophageal surgery was identified. Tension groups were also delineated into mild, moderate, and high anastomotic tension. Anastomotic tension and paralysis times were analyzed by multivariable logistic regression and area under the curve (AUC) to determine factors associated with development of leaks and an increased risk of repeat SR. Results Ninety-four patients were identified; 45 were males and mean gestational age was 35 weeks...

Obesity surgery, Jan 15, 2018

In the USA, three types of bariatric surgeries are widely performed, including laparoscopic sleev... more In the USA, three types of bariatric surgeries are widely performed, including laparoscopic sleeve gastrectomy (LSG), laparoscopic Roux-en-Y gastric bypass (LRYGB), and laparoscopic adjustable gastric banding (LAGB). However, few economic evaluations of bariatric surgery are published. There is also scarcity of studies focusing on the LSG alone. Therefore, this study is evaluating the cost-effectiveness of bariatric surgery using LRYGB, LAGB, and LSG as treatment for morbid obesity. A microsimulation model was developed over a lifetime horizon to simulate weight change, health consequences, and costs of bariatric surgery for morbid obesity. US health care prospective was used. A model was propagated based on a report from the first report of the American College of Surgeons. Incremental cost-effectiveness ratios (ICERs) in terms of cost per quality-adjusted life-year (QALY) gained were used in the model. Model parameters were estimated from publicly available databases and published...

JPEN. Journal of parenteral and enteral nutrition, 2016

Journal of Pediatric Surgery, 2014

Splenic preservation is the standard of care for hemodynamically stable children with splenic inj... more Splenic preservation is the standard of care for hemodynamically stable children with splenic injuries. We report a 20-year single-institutional series of children with splenic injuries managed without a splenectomy. Children evaluated and treated for blunt splenic injury at Boston Children&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s Hospital from 1994 to 2014 were extracted from the trauma registry. Demographics, clinical characteristics, complications, and outcomes were reviewed. Three time-periods were evaluated based upon the development and modification of splenic injury clinical pathway guidelines (CPGs). Survival was defined as being discharged from the hospital alive. 502 suffered isolated splenic injuries. The median AAST grade of splenic injury increased across the three CPG time periods (p&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt;0.001). No splenic-injury related mortalities occurred. Hospital length of stay decreased significantly secondary to splenic injury CPGs (p&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt;0.001). 99% of the patients were discharged home. In children managed over the last 20years for isolated splenic injury, no patient died or underwent splenectomy. Hospital length of stay decreased across time, despite an increase in the severity of splenic injuries encountered. Splenectomy has become so unusual in the management of hemodynamically stable children with a splenic injury that it may no longer be a legitimate outcome marker.

Purpose: Treatment of long-gap esophageal atresia challenges pediatric surgeons. Dr. Foker descri... more Purpose: Treatment of long-gap esophageal atresia challenges pediatric surgeons. Dr. Foker described utilization of external traction sutures to promote in-vivo growth through tension-induced lengthening, but reproducibility of this technique is difficult. We describe a safe and reproducible traction system using transduction of hydrostatic pressure as a surrogate for tension. Methods: We conducted a multi-institutional review of patients treated with this system from 2005 to 2012. All children had sutures applied to both pouches with continuous measurement of associated hydrostatic pressures (tension). Main outcome measures were days to delayed primary repair and thoracotomies prior to primary repair. Results: Seven children were included. Median time to delayed repair was 15 days (range: 6-47 days). Three patients required repeat thoracotomies owing to mechanical entrapment of a pouch, all identified early by this system. All required postoperative dilations. Three had self-limited postdilation leaks, and there was one operation-related leak. Conclusions: This system provides reproducible traction application, facilitating staged primary repair by preventing major failures through limiting excessive traction and guides re-exploration for trapped segments. Larger studies are needed to determine the optimal tension protocol, prevent postoperative leaks, while decreasing the need for dilations and time to enteral feeding.

JPEN. Journal of parenteral and enteral nutrition, Jan 22, 2016

Malnutrition is common in hospitalized patients in the United States. In 2010, 80,710 of 6,280,71... more Malnutrition is common in hospitalized patients in the United States. In 2010, 80,710 of 6,280,710 hospitalized children <17 years old had a coded diagnosis of malnutrition (CDM). This report summarizes nationally representative, person-level characteristics of hospitalized children with a CDM. Data are from the 2010 Healthcare Cost and Utilization Project, which contains patient-level data on hospital inpatient stays. When weighted appropriately, estimates from the project represent all U.S. hospitalizations. The data set contains up to 25ICD-9-CMdiagnostic codes for each patient. Children with a CDM listed during hospitalization were identified. In 2010, 1.3% of hospitalized patients <17 years had a CDM. Since the data include only those with a CDM, malnutrition's true prevalence may be underrepresented. Length of stay among children with a CDM was almost 2.5 times longer than those without a CDM. Hospital costs for children with a CDM were >3 times higher than those ...

Obesity is important and its affects are not only limited to adults and medical conditions, but a... more Obesity is important and its affects are not only limited to adults and medical conditions, but also may affect children and adolescents and may have overarching effects on social parameters. Programs to prevent the negative outcomes associated with obesity and its associated social stigmization should be at the forefront. And, lastly, both medical and surgical options to prevent and combat obesity should be investigated as there is often a positive association with an improvement in body mass index and health related quality of life.

Paediatric Respiratory Reviews, 2016

Tracheobronchomalacia, as a whole, is likely misdiagnosed and underestimated as a cause of respir... more Tracheobronchomalacia, as a whole, is likely misdiagnosed and underestimated as a cause of respiratory compromise in pediatric patients. Currently, there is no standardized approach for the overall evaluation of pediatric tracheobronchomalacia (TBM) and the concept of excessive dynamic airway collapse (EDAC); no grading score for the evaluation of severity; nor a standardized means to successfully approach TBM and EDAC. This paper describes our experience standardizing the approach to these complex patients whose backgrounds include different disease etiologies, as well as a variety of comorbid conditions. Preoperative and postoperative evaluation of patients with severe TBM and EDAC, as well as concurrent development of a prospective grading scale, has allowed us to ascertain correlation between surgery, symptoms, and effectiveness on particular tracheal-bronchial segments. Long-term, continued collection of patient characteristics, surgical technique, complications, and outcomes must be collected given the overall heterogeneity of this particular population.

Journal of pediatric surgery, Jan 14, 2015

Tracheobronchomalacia (TBM) is associated with esophageal atresia, tracheoesophageal fistulas, an... more Tracheobronchomalacia (TBM) is associated with esophageal atresia, tracheoesophageal fistulas, and congenital heart disease. TBM results in chronic cough, poor mucous clearance, and recurrent pneumonias. Apparent life-threatening events or recurrent pneumonias may require surgery. TBM is commonly treated with an aortopexy, which indirectly elevates trachea's anterior wall. However, malformed tracheal cartilage and posterior tracheal membrane intrusion may limit its effectiveness. This study describes patient outcomes undergoing direct tracheobronchopexy for TBM. The records of patients that underwent direct tracheobronchopexy at our institution from January 2011 to April 2014 were retrospectively reviewed. Primary outcomes included TBM recurrence and resolution of the primary symptoms. Data were analyzed by McNemar's test for matched binary pairs and logistic regression modeling to account for the endoscopic presence of luminal narrowing over multiple time points per patient...

Neonatology, Jan 19, 2016

Long-gap esophageal atresia (LGEA) may have clinical and syndromic presentations different from t... more Long-gap esophageal atresia (LGEA) may have clinical and syndromic presentations different from those of esophageal atresia (EA) that affects shorter segments of the esophagus (non-LGEA). This may suggest unique underlying developmental mechanisms. We sought to characterize clinical differences between LGEA and non-LGEA by carefully phenotyping a cohort of EA patients, and furthermore to assess molecular genetic findings in a subset of them. This is a retrospective cohort study to systematically evaluate clinical and genetic findings in EA infants who presented at our institution over a period of 10 years (2005-2015). Two hundred twenty-nine EA patients were identified, 69 (30%) of whom had LGEA. Tracheoesophageal fistula was present in most non-LGEA patients (158 of 160) but in only 30% of LGEA patients. The VACTERL association was more commonly seen with non-LGEA compared to LGEA (70 vs. 25%; p < 0.001). Further, trisomy 21 was more common in LGEA than in non-LGEA. 25% of LGEA ...

Journal of Surgical Research, 2016

Foregut duplication cysts are rare congenital anomalies that require surgical intervention with a... more Foregut duplication cysts are rare congenital anomalies that require surgical intervention with approximately 10%-15% of all gastrointestinal duplication cysts originating from the esophagus. Consensus is lacking among surgeons regarding closure of the esophageal muscle layer after resection of an esophageal duplication cyst and long-term outcomes are poorly documented. Therefore, we conducted the first study comparing complication rates in patients undergoing closure versus nonclosure of the esophageal muscle layer after esophageal duplication cyst resection. A retrospective cohort study at Boston Children&amp;amp;amp;amp;amp;#39;s Hospital, Massachusetts General Hospital, Brigham and Women&amp;amp;amp;amp;amp;#39;s Hospital, and the Floating Hospital for Children at Tufts Medical Center was conducted. Patients undergoing resection of esophageal duplication cysts between 1990 and 2012 were classified according to whether the esophageal muscle layer was closed or left open. Demographic data, surgical technique, preoperative symptoms, and both short-term (&amp;amp;amp;amp;amp;lt;30 d) and long-term (≥30 d) complication rates were abstracted from patient medical records. Twenty-five patients were identified with a median age of 15-y old (range, 2 mo to 68-y old) and an average follow-up of 1 y. Eleven patients had the esophageal muscle layer closed after surgical resection (44%). Of those 11 patients, one developed a short-term complication, dysphagia (9%, 95% CI: 2%, 38%). Only one patient returned to the operating room, after 30 d, for an upper endoscopy after developing symptoms of gastroesophageal reflux disease. Of the 14 patients who had their muscle layer left open, three patients (21%, 95% CI: 8%, 48%) developed short-term complications, two of whom required surgical intervention within 30 d. Furthermore, two additional patients required surgical intervention after 30 d for a long-term complication (diverticulum and cyst recurrence). Surgical complications occurred more frequently in patients who had the muscle layer left open after resection of an esophageal duplication cyst. In addition, most patients requiring reoperation for both short-term and long-term complications occurred in this group. Though small, this study is the first to evaluate the complications after resecting esophageal duplication cysts. Our results suggest that closing the esophageal muscle layer after removal of an esophageal duplication cyst may be indicated to prevent both complications and the need for reoperations.

Pediatric surgery international, Jan 4, 2016

Patients with long-gap esophageal atresia (LGEA) treated with the Foker process are at increased ... more Patients with long-gap esophageal atresia (LGEA) treated with the Foker process are at increased risk of venous thromboembolism (VTE). An institutional quality improvement program to decrease VTE risk factor exposure and utilize prophylactic anticoagulation was implemented. We aim to evaluate the efficacy and safety of a VTE risk-reduction program in patients with LGEA. Implementation and evaluation of a VTE risk-reduction program in patients with LGEA from 2012 to 2015 was performed. Symptomatic VTE with radiographic confirmation were defined as events. Post-program characteristics were evaluated and compared to a historical cohort. Sixty-seven patients were identified. Two developed VTE (7 %) post-program implementation; compared to 13/40 (33 %) VTE incidence in the historical cohort (p = 0.018). Baseline demographics were similar, including age, esophageal atresia type and gap length. Post-protocol patients had fewer paralysis episodes (p = 0.004), paralysis days (p = 0.003), cen...