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Dive into the research topics where Dave R. Lal is active.

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Featured researches published by Dave R. Lal.


Journal of Pediatric Surgery | 2009

Beyond feasibility: a comparison of newborns undergoing thoracoscopic and open repair of congenital diaphragmatic hernias

David M. Gourlay; Laura D. Cassidy; Thomas T. Sato; Dave R. Lal; Marjorie J. Arca

BACKGROUND Although both laparoscopic and thoracoscopic repair of congenital diaphragmatic hernia (CDH) have been described in the literature, neither appropriate selection criteria nor improved outcomes for minimally invasive repair over open repair have been clearly delineated. METHODS We reviewed our experience with neonatal CDH repair between 2004 and 2007 to determine clinical parameters that are associated with successful thoracoscopic CDH repair. We compared these patients to a similarly matched cohort of patients who had undergone an open neonatal CDH repair between 1999 and 2003. RESULTS From 2004 to 2007, 20 (61%) of 33 patients underwent successful neonatal thoracoscopic CDH repair. Characteristics common to all patients who underwent successful thoracoscopic repair included absence of congenital heart defects, no need for extracorporeal membrane oxygenation, ventilatory peak inspiratory pressure of less than 26 cmH(2)O, and oxygenation index less than 5 on the day of planned surgery. From 1999 to 2003, 40 patients underwent an open neonatal CDH repair, of which 18 (45%) patients would have matched our selection criteria for thoracoscopic repair. These 2 cohorts were similar in age, estimated gestational age, weight, APGAR scores, and oxygenation index at the time of surgery. The thoracoscopic cohort had statistically and clinically significant quicker return to full enteral feeds, had shorter duration on the ventilator postoperatively, and required less narcotic/sedation postoperatively. Less severe complications occurred in the thoracoscopic cohort. Adjusted total hospital charges were less for the thoracoscopic repair. CONCLUSIONS Successful thoracoscopic CDH repair can be expected in newborns, which has limited respiratory compromise. Thoracoscopic CDH repair is associated with lower morbidity and quicker recovery than traditional open repair and without increased risk of recurrence or complications.


Surgical Endoscopy and Other Interventional Techniques | 2006

Medium- and long-term outcome of laparoscopic redo fundoplication.

Brant K. Oelschlager; Dave R. Lal; E. Jensen; M. Cahill; Elina Quiroga; Carlos A. Pellegrini

BackgroundFor a small subset of patients, laparoscopic fundoplication fails, typically resulting in recurrent reflux or severe dysphagia. Although redo fundoplications can be performed laparoscopically, few studies have examined their long-term efficacy.MethodsUsing a prospectively maintained database, the authors identified and contacted 41 patients who had undergone redo laparoscopic fundoplications at the University of Washington between 1996 and 2001. The median follow-up period was 50 months (range, 20–95 months). Current symptoms were compared with those acquired and entered into the authors’ database preoperatively. Patients also were asked to return for esophageal manometry and pH testing.ResultsAll redo fundoplications were performed laparoscopically. There were no conversions. The most common indication for redo fundoplication was recurrent reflux. The most common anatomic abnormality was a herniated wrap. Heartburn improved in 61%, regurgitation in 69%, and dysphagia in 74% of the patients. Complete resolution of these symptoms was achieved, respectively, in 45%, 41% and 38% of these same patients. Overall, 68% of the patients rated the success of the procedure as either “excellent” or “good,” and 78% said they were happy they chose to have it. For those who underwent reoperation for gastroesophageal reflux disease, distal esophageal acid exposure according to 24-h pH monitoring decreased after redo fundoplication from 15.7% ± 18.1% to 3.4% ± 3.6% (p = 0.041).ConclusionAlthough not as successful as primary fundoplication, a majority of patients can expect durable improvement in their symptoms with a laparoscopic redo fundoplication.


Pediatric Blood & Cancer | 2005

Primary epithelial lung malignancies in the pediatric population

Dave R. Lal; Ian Clark; Jaime Shalkow; Robert J. Downey; Nicholas A. Shorter; David S. Klimstra; Michael P. La Quaglia

Primary epithelial lung malignancies are rare in childhood and adolescence. We reviewed the Memorial Sloan‐Kettering Cancer Center experience with these tumors to better understand their histology, time to diagnosis, treatment, and outcome.


Journal of Laparoendoscopic & Advanced Surgical Techniques | 2013

Current Patterns of Practice and Technique in the Repair of Esophageal Atresia and Tracheoesophageal Fistua: An IPEG Survey

Dave R. Lal; Go Miyano; David Juang; Nicole E. Sharp; Shawn D. St. Peter

BACKGROUND Optimal surgical treatment of infants with esophageal atresia (EA) and tracheoesophageal fistula (TEF) remains controversial. In order to better understand variability in management, we surveyed the International Pediatric Endosurgery Group (IPEG) membership. MATERIALS AND METHODS An online-based survey, conducted in 2012, was sent to all IPEG members. RESULTS The survey was completed by 170 surgeons from 31 countries. A majority of respondents practiced in academic/university settings (86%) and performed one to three EA/TEF repairs annually (67%). Those practicing for over 15 years made up 39% of the study group, followed by those practicing 6-10 years (24%), 0-5 years (22%), and 11-15 years (15%). Utilization of a thoracoscopic approach was reported by half of the respondents with a frequency of 1-3 cases (76%), 4-6 cases (17%), and greater than 7 cases (7%) per year. Low birth weight, congenital heart disease, long gap length, and compromised physiologic status were identified as the most common exclusion criteria for thoracoscopic repair. The thoracoscopic repair was almost uniformly performed via an intrapleural approach (96%), in contrast with the open repair that was done extrapleurally in 89%. Preoperative bronchoscopy was routinely performed by 60%. Size 4-0 to 5-0 absorbable suture predominated for EA repair. Postoperative chest tube/drain and transanastomotic tube placement were used by 83%. A normal esophagram was required by 85% to initiate oral feeding. Sixty-six percent initiated transanastomotic feeds prior to obtaining an esophagram. Postoperative antibiotic use was common (76%) and varied from less than 1 to greater than 14 days. Acid suppression medication was used by 76% with duration ranging from 7 days to lifelong. For long gap EA, spiral myotomies were rarely performed (10%), and gastric transposition was the favored method for esophageal replacement (66%). CONCLUSIONS Considerable variability existed among the IPEG membership in treatment of patients with EA/TEF. The identification of variance is the first step in creating future studies to identify best practices.


Journal of Pediatric Surgery | 2017

Perioperative management and outcomes of esophageal atresia and tracheoesophageal fistula

Dave R. Lal; Samir K. Gadepalli; Cynthia D. Downard; Daniel J. Ostlie; Peter C. Minneci; Ruth M. Swedler; Thomas H. Chelius; Laura D. Cassidy; Cooper T. Rapp; Katherine J. Deans; Mary E. Fallat; S. Maria E. Finnell; Michael A. Helmrath; Ronald B. Hirschl; Rashmi Kabre; Charles M. Leys; Grace Z. Mak; Jessica Raque; Frederick J. Rescorla; Jacqueline M. Saito; Shawn D. St. Peter; Daniel von Allmen; Brad W. Warner; Thomas T. Sato

BACKGROUND/PURPOSE Esophageal atresia/tracheoesophageal fistula (EA/TEF) is a rare congenital anomaly lacking contemporary data detailing patient demographics, medical/surgical management and outcomes. Substantial variation in the care of infants with EA/TEF may affect both short- and long-term outcomes. The purpose of this study was to characterize the demographics, management strategies and outcomes in a contemporary multi-institutional cohort of infants diagnosed with EA/TEF to identify potential areas for standardization of care. METHODS A multi-institutional retrospective cohort study of infants with EA/TEF treated at 11 childrens hospitals between 2009 and 2014 was performed. Over the 5year period, 396 cases were identified in the 11 centers (7±5 per center per year). All infants with a diagnosis of EA/TEF made within 30days of life who had surgical repair of their defect defined as esophageal reconstruction with or without ligation of TEF within the first six months of life were included. Demographic, operative, and outcome data were collected and analyzed to detect associations between variables. RESULTS Prenatal suspicion or diagnosis of EA/TEF was present in 53 (13%). The most common anatomy was proximal EA with distal TEF (n=335; 85%) followed by pure EA (n=27; 7%). Clinically significant congenital heart disease (CHD) was present in 137 (35%). Mortality was 7.5% and significantly associated with CHD (p<0.0001). Postoperative morbidity occurred in 62% of the population, including 165 (42%) cases with anastomotic stricture requiring intervention, anastomotic leak in 89 (23%), vocal cord paresis/paralysis in 26 (7%), recurrent fistula in 19 (5%), and anastomotic dehiscence in 9 (2%). Substantial variation in practice across our institutions existed: bronchoscopy prior to repair was performed in 64% of cases (range: 0%-100%); proximal pouch contrast study in 21% (0%-69%); use of interposing material between the esophageal and tracheal suture lines in 38% (0%-69%); perioperative antibiotics ≥24h in 69% (36%-97%); and transanastomotic tubes in 73% (21%-100%). CONCLUSION Contemporary treatment of EA/TEF is characterized by substantial variation in perioperative management and considerable postoperative morbidity and mortality. Future studies are planned to establish best practices and clinical care guidelines for infants with EA/TEF. LEVEL OF EVIDENCE Type of study: Treatment study. Level IV.


Journal of The American College of Surgeons | 2013

Health Disparities Analysis of Critically Ill Pediatric Trauma Patients in Milwaukee, Wisconsin

Laura D. Cassidy; Daphne Lambropoulos; Jessica Enters; David M. Gourlay; Mina M Farahzad; Dave R. Lal

BACKGROUND Injury is the leading cause of childhood morbidity and mortality in the US. The associated costs exceed


Prehospital and Disaster Medicine | 2003

Prehospital hyperventilation after brain injury: a prospective analysis of prehospital and early hospital hyperventilation of the brain-injured patient.

Dave R. Lal; Steve T. Weiland; Monica Newton; Anne Flaten; Michael Schurr

20 billion annually. This study examined disparities in disadvantaged populations of critically injured pediatric patients admitted to a level 1 pediatric trauma center. STUDY DESIGN A retrospective study was conducted of all trauma patients admitted to the pediatric intensive care unit (PICU) at a level 1 pediatric trauma hospital from 2005 to 2009. RESULTS Data on 324 patients were analyzed; 45% of patients were Caucasian, 33% were African American, 12% were Hispanic, and 10% were other. There was no difference in age, Glasgow Coma Scale (GCS), or Injury Severity Score (ISS) across ethnic groups. The mortality rate was 12%. A higher percentage of Caucasians were commercially insured and from the highest income quartile than non-Caucasians (p < 0.001). African Americans had the highest rate of penetrating trauma and intentional injury compared with other ethnicities (p < 0.001). Nearly 75% of firearm injuries were clustered in 7 ZIP codes with the lowest median household incomes. The home was the most common location for firearm injuries. Children involved in assaults were more likely to have a single parent (67%) than 2 parents (26%, p < 0.001). Both ethnicity and payer status were significantly associated with mortality. CONCLUSIONS Significant disparities in socioeconomic status exist in severely injured pediatric patients treated in the PICU. Disparities were associated with adverse outcomes. These results should inform community and public health efforts to identify the areas and populations at highest risk for violence-related injuries.


Journal of Pediatric Surgery | 2017

Surgical management of gastroesophageal reflux disease (GERD) in children: A systematic review

Tim Jancelewicz; Monica E. Lopez; Cynthia D. Downard; Saleem Islam; Robert Baird; Shawn J. Rangel; Regan F. Williams; Meghan A. Arnold; Dave R. Lal; Elizabeth Renaud; Julia Grabowski; Roshni Dasgupta; Mary T. Austin; Julia Shelton; Danielle B. Cameron; Adam B. Goldin

BACKGROUND The Brain Trauma Foundations Guidelines for the Management of Severe Head Injury state that the use of prophylactic hyperventilation after traumatic brain injury (TBI) should be avoided because it can compromise cerebral perfusion. The objective of this study was to assess the prevalence of unintentional hyperventilation. METHODS A prospective evaluation of all intubated trauma patients with a diagnosis of TBI was performed. Patients with signs of impending herniation were excluded. RESULTS Forty patients were included in the study. The average Glasgow Coma Scale (GCS) was 6.3. Of these, 28 patients (70%) were unintentionally hyperventilated. Eleven (39%) of the hyperventilated patients died or were discharged in a persistent vegetative state. Of the remaining 12 patients who experienced normal ventilation, three patients (25%) died or were discharged in a vegetative state (p = ns) (Table 1). CONCLUSION Hyperventilation was common after TBI. However, patients ventilated to a normal PaCO2 were significantly more acidotic. Prehospital personnel should undergo educational training after development of strict ventilation protocols for patients suffering TBI.


European Journal of Pediatric Surgery | 2013

Recurrent Tracheoesophageal Fistula

Dave R. Lal; Keith T. Oldham

OBJECTIVE The goal of this systematic review by the American Pediatric Surgical Association Outcomes and Evidence-Based Practice Committee was to derive recommendations from the medical literature regarding the surgical treatment of pediatric gastroesophageal reflux disease (GERD). METHODS Five questions were addressed by searching the MEDLINE, Cochrane, Embase, Central, and National Guideline Clearinghouse databases using relevant search terms. Consensus recommendations were derived for each question based on the best available evidence. RESULTS There was insufficient evidence to formulate recommendations for all questions. Fundoplication does not affect the rate of hospitalization for aspiration pneumonia, apnea, or reflux-related symptoms. Fundoplication is effective in reducing all parameters of esophageal acid exposure without altering esophageal motility. Laparoscopic fundoplication may be comparable to open fundoplication with regard to short-term clinical outcomes. Partial fundoplication and complete fundoplication are comparable in effectiveness for subjective control of GERD. Fundoplication may benefit GERD patients with asthma, but may not improve outcomes in patients with neurologic impairment or esophageal atresia. Overall GERD recurrence rates are likely below 20%. CONCLUSIONS High-quality evidence is lacking regarding the surgical management of GERD in the pediatric population. Definitive conclusions regarding the effectiveness of fundoplication are limited by patient heterogeneity and lack of a standardized outcomes reporting framework. TYPE OF STUDY Systematic review of level 1-4 studies. LEVEL OF EVIDENCE Level 1-4 (mainly level 3-4).


Journal of Pediatric Surgery | 2017

Challenging surgical dogma in the management of proximal esophageal atresia with distal tracheoesophageal fistula: Outcomes from the Midwest Pediatric Surgery Consortium

Dave R. Lal; Samir K. Gadepalli; Cynthia D. Downard; Daniel J. Ostlie; Peter C. Minneci; Ruth M. Swedler; Thomas H. Chelius; Laura D. Cassidy; Cooper T. Rapp; Deborah F. Billmire; Steven W. Bruch; R. Carland Burns; Katherine J. Deans; Mary E. Fallat; Jason D. Fraser; Julia Grabowski; Ferdynand Hebel; Michael A. Helmrath; Ronald B. Hirschl; Rashmi Kabre; Jonathan E. Kohler; Matthew P. Landman; Charles M. Leys; Grace Z. Mak; Jessica Raque; Beth Rymeski; Jacqueline M. Saito; Shawn D. St. Peter; Daniel von Allmen; Brad W. Warner

Repair of recurrent tracheoesophageal fistulas (rTEFs) remains a technically challenging endeavor. Although considered the gold standard, open surgical repair is associated with significant morbidity and rates of recurrence. Over the last 40 years, endoscopic techniques have gained popularity and been touted as a safer first line treatment. This review complies the published articles related to endoscopic repair of rTEFs and reports the various techniques, number of interventions, and success rates. Controversy will remain as to which technique is superior until prospective, multi-institutional studies are performed.

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Julia Grabowski

Children's Memorial Hospital

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Laura D. Cassidy

Medical College of Wisconsin

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Marjorie J. Arca

Children's Hospital of Wisconsin

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Thomas T. Sato

Children's Hospital of Wisconsin

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Robert Baird

Montreal Children's Hospital

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Carlos A. Pellegrini

University of Washington Medical Center

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