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Featured researches published by L.R. Scherer.


Journal of Pediatric Surgery | 2003

Long-term analysis of children with esophageal atresia and tracheoesophageal fistula

D.C Little; F.J. Rescorla; Jay L. Grosfeld; Karen W. West; L.R. Scherer; Scott A. Engum

BACKGROUND/PURPOSE For children with esophageal atresia (EA) or tracheoesophageal fistula (TEF), the first years of life can be associated with many problems. Little is known about the long-term function of children who underwent repair as neonates. This study evaluates outcome and late sequelae of children with EA/TEF. METHODS Medical records of infants with esophageal anomalies (May 1972 through December 1990) were reviewed. Study parameters included demographics, dysphagia, frequent respiratory infections (> 3/yr), gastroesophageal reflux disease (GERD), frequent choking, leak, stricture, and developmental delays (weight, height < 25%, < 5%, respectively). RESULTS Over 224 months, 69 infants (37 boys, 32 girls) were identified: type A, 10 infants; type B, 1; type C, 53; type D, 4; type E, 1. Mean follow-up was 125 months. During the first 5 years of follow-up, dysphagia (45%), respiratory infections (29%), and GERD (48%) were common as were growth delays. These problems improved as the children matured. CONCLUSIONS Children with esophageal anomalies face many difficulties during initial repair and frequently encounter problems years later. Support groups can foster child development and alleviate parent isolationism. Despite growth retardation, esophageal motility disorders, and frequent respiratory infections, children with EA/TEF continue to have a favorable long-term outcome.


Annals of Surgery | 1996

Increased risk of necrotizing enterocolitis in premature infants with patent ductus arteriosus treated with indomethacin

Jay L. Grosfeld; Mark Chaet; Francine Molinari; William A. Engle; Scott A. Engum; Karen W. West; Frederick J. Rescorla; L.R. Scherer

OBJECTIVE The authors evaluated the risk of necrotizing enterocolitis (NEC) in very low birth weight infants receiving indomethacin (INDO) to close patent ductus arteriosus (PDA). BACKGROUND DATA Controversy exists regarding the best method of managing very low birth weight infants with PDA and whether to employ medical management using INDO or surgical ligation of the ductus. METHODS Two hundred fifty-two premature infants with symptomatic PDA were given intravenously INDO 0.2 mg/kg every 12 hours x 3 in an attempt to close the ductus. Patients were evaluated for sex, birth weight, gestational age, ductus closure, occurrence of NEC, bowel perforation, and mortality. RESULTS There were 135 boys and 117 girls. The PDA closed or became asymptomatic in 224 cases (89%), whereas 28 (11%) required surgical ligation. Ninety infants (35%) developed evidence of NEC after INDO therapy. Fifty-six were managed medically; surgical intervention was required in 34 of 90 cases (37.8%) or 13% of the entire PDA/INDO study group. Bowel perforation was noted in 27 cases (30%). Factors associated with the onset of NEC included gestational age < 28 weeks, birth weight < 1 kg, and prolonged ventilator support. The overall mortality rate was 25.5%, but was higher in infants with NEC versus those without. The highest mortality was noted in perforated NEC cases. The PDA/INDO patients were compared with a control group of 764 infants with similar sex distribution, birth weights, and gestational ages without PDA who did not receive INDO. Necrotizing enterocolitis occurred in 105 of 764 control patients (13.7%), including 13 (12.3%) with perforation. The overall mortality rate of controls was 25%, which was similar to the overall 25.5% mortality rate in the PDA/INDO study group. CONCLUSION These data indicate that there is increased risk of NEC and bowel perforation in premature infants with PDA receiving INDO. Mortality was higher in the PDA/INDO group with NEC than those PDA/INDO infants without NEC.


Journal of Pediatric Surgery | 1995

Diagnosis and treatment of symptomatic breast masses in the pediatric population

Karen W. West; Frederick J. Rescorla; L.R. Scherer; Jay L. Grosfeld

Between 1980 and 1993, 74 children and adolescents were referred for surgical evaluation of palpable breast masses. Thirty-two were managed nonoperatively for unilateral thelarche (26), fibroadenoma (3), gynecomastia (2), or hemorrhagic cyst (1). The other 42 children had surgical intervention for giant or painful fibroadenomas (19), breast abscesses (5), painful gynecomastia (6), metastatic disease (4), or other conditions (8). No instances of primary breast malignancy were noted. Physical examination and minimal (selective) diagnostic testing can conserve health care dollars in cases of pediatric patients with breast masses.


Journal of Pediatric Surgery | 2000

Prehospital triage in the injured pediatric patient

Scott A. Engum; M.K. Mitchell; L.R. Scherer; G. Gomez; Lewis E. Jacobson; Kathleen C. Solotkin; Jay L. Grosfeld

BACKGROUND/PURPOSE Identifying major trauma patients in the prehospital setting is essential in determining management, destination, and best utilization of emergency department resources. Few methods of trauma triage have been accepted unanimously. This study prospectively evaluates the efficacy of comprehensive field triage using 12 criteria (simplified version of the American College of Surgeons guidelines) in 1,285 pediatric trauma patients. METHODS Major trauma was defined as occurring in those who died in the emergency room, had major surgery (penetrating injury involving surgery of the head, neck, chest, abdomen, or groin), or were admitted directly to the intensive care unit. The correlation between trauma triage criteria, hospital disposition, and triage accuracy were determined prospectively and compared in the pediatric patients (36 months) with an adult cohort of patients (12 months). RESULTS A total of 1,285 pediatric trauma patients were evaluated and compared with 1,326 adult trauma patients. The most accurate trauma triage criterion for major injury was a blood pressure < or = 90 mmHg (systolic) with an accuracy of 86%. This was followed by burn greater than 15% total body surface area (79%), Glasgow Coma Scale score < or = 12 (78%), respiratory rate less than 10/min or greater than 29/min (73%), and paralysis (50%). Less accurate criteria included a fall from greater than 20 feet (33%); penetrating injury to head, neck, chest, abdomen, or groin (29%); ejection from vehicle (24%); pedestrian struck at greater than 20 mph (16%); paramedic judgement (12%); rollover (3%); and extrication (0%). The Glasgow Coma Scale score was a more accurate indicator of major injury in children than adults, and paramedic judgement was less accurate in children when compared with adults. Of the 379 major pediatric trauma victims, the Revised Trauma Score and Pediatric Trauma Score missed 36% and 45% of these major trauma victims, respectively. The overtriage rate for children was 71% with a sensitivity of 100% (no missed major trauma patients). CONCLUSIONS Physiological variables, anatomic site, and mechanism of injury provide a sensitive and safe system of triage. Continued education of prehospital personnel regarding pediatric trauma and stratification of the current triage tools are necessary to minimize overtriage in an era of shrinking resources.


Journal of Pediatric Surgery | 1995

The efficacy of early ERCP in pediatric pancreatic trauma

Frederick J. Rescorla; Donald A Plumley; Stuart Sherman; L.R. Scherer; Karen W. West; Jay L. Grosfeld

Recognition of pancreatic injuries is frequently delayed, and optimal treatment is often controversial. The use of endoscopic retrograde cholangiopancreatography (ERCP) has allowed accurate delineation of pancreatic ductal injuries; however, the small size of children and the concern with inducing pancreatitis and/or lesser sac contamination have limited its use in children. In 1988, the authors began using ERCP for selected pancreatic injuries. This report describes their experience with this technique and examines the role of ERCP in pediatric pancreatic injuries. Six children with pancreatic transections resulting from blunt trauma were treated between 1988 and 1993. The age range was 2 1/2 to 8 years, and the weight range was 13.6 to 27.9 kg. The average period from injury to referral to the hospital was 14 days (range, 2 to 30 days). All six children presented with chemical evidence of pancreatitis and had an initial computed tomography (CT) scan; five scans were interpreted as being normal. Five of the six patients had subsequent CT scans, which showed lesser-sac fluid collection. Three patients were treated with drainage (2 percutaneous, 1 open [outside hospital]), and when this failed, ERCP was performed, at 13.6 days (average) after presentation. These three patients underwent ERCP relatively early in the course (an average of 3 days after presentation). All six children had major ductal transections documented through ERCP. After ERCP, the serum amylase level remained elevated in three, increased in one, and normal in one. (It was not measured in one of the recent cases taken for immediate operation.)(ABSTRACT TRUNCATED AT 250 WORDS)


Annals of Surgical Oncology | 1994

Mediastinal tumors in children: experience with 196 cases.

Jay L. Grosfeld; Michael A. Skinner; Frederick J. Rescorla; Karen W. West; L.R. Scherer

AbstractBackground: Mediastinal masses are relatively common in infants and children. These lesions are often neoplastic in origin and have a high risk of malignancy. Methods: This report concerns 196 infants and children with mediastinal tumors. Fifty-five cases (28%) were benign, and 141 (72%) were malignant. Diagnosis included Hodgkins disease (47), neuroblastoma (46), non-Hodgkins lymphoma (37), teratoma (18), ganglioneuroma (14), cystic hygroma (11), Schwannoma (five), germ-cell tumors (three), lipoma (three), thymic tumor (three), malignant histiocytosis (two), neurofibroma (two), mesenchymal sarcoma (one), rhabdomyosarcoma (one), peripheral neuroectodermal tumor (one), hamartoma (one), and hemangioma (one). Diagnoses were usually made by assessing the patients age, radiologic evidence of tumor location, the presence of calcium in the tumor, and the presence of tumor markers (α-fetoprotein, vanillmandelic acid, human chorionic gonadotropin). Diagnoses were verified by histologic evaluation. Resection was the only treatment for benign tumors. Biopsy and chemotherapy (and/or radiation) were employed for lymphoid tumors, and resection and adjuvant therapy were used for other solid malignancies. Results: Survival was achieved in 53 of 55 (96.3%) patients with benign tumors and 105 of 141 (74.4%) patients with malignant tumors. Conclusions: Seventy-two percent of mediastinal tumors in this study were malignant. Early diagnosis followed by biopsy and chemotherapy for lymphoid tumors or resection of nonlymphoid tumors along with aggressive adjuvant therapy result in high survival rates (74.4%). Children with benign tumors almost always survive (96.3%) after resection.


Annals of Surgery | 1997

Reoperation after Nissen fundoplication in children with gastroesophageal reflux: experience with 130 patients.

Laura K. Dalla Vecchia; Jay L. Grosfeld; Karen W. West; Frederick J. Rescorla; L.R. Scherer; Scott A. Engum

OBJECTIVE The authors evaluate reoperation for recurrent gastroesophageal reflux (GER) after a failed Nissen fundoplication. SUMMARY BACKGROUND DATA Nissen fundoplication is an accepted treatment for GER refractory to medical therapy. Wrap failure and recurrence of GER are noted in 8% to 12%. METHODS Medical records of 130 children undergoing a second antireflux operation for recurrent GER from January 1985 to June 1996 retrospectively were reviewed. RESULTS One hundred one patients (78%) were neurologically impaired (NI), 74 (57%) had chronic pulmonary disease, and 8 had esophageal atresia. Recurrent symptoms included vomiting (78%), growth failure (62%), choking-coughing-gagging (38%), and pneumonia (25%). Gastroesophageal reflux was confirmed by barium swallow, gastric scintigraphy, and endoscopy. Operative findings showed wrap breakdown (42%), wrap-hiatal hernia (30%), or both (21%). A second Nissen fundoplication was performed in 128 children. Complications included bowel obstruction (18), wound infection (10), pneumonia (6) and tight wrap (9). There were two postoperative (<30 days) deaths (1.5%). Of 124 patients observed long term, 89 (72%) remain symptom free. Eight were converted to tube feedings. Twenty-seven required a third fundoplication, and 19 (70%) were successful outcome. Two with repetitive wrap failure due to gastric atony underwent gastric resection and esophagojejunostomy. CONCLUSION Nissen fundoplication was successful in 91% of patients. In 9% with wrap failure, a second Nissen fundoplication was successful in 72%. Reoperation is justified in properly selectedpatients. Conversion to jejunostomy feedings is suggested for neurologically impaired after two wrap failures and a partial wrap in those with esophageal atresia and severe esophageal dysmotility. Repeated wrap failure due to gastric atony requires gastric resection and esophagojejunostomy.


Journal of Pediatric Surgery | 1998

Long-Term Follow-Up After Bowel Resection for Necrotizing Enterocolitis: Factors Affecting Outcome

Alan P. Ladd; Frederick J. Rescorla; Karen W. West; L.R. Scherer; Scott A. Engum; Jay L. Grosfeld

BACKGROUND Necrotizing enterocolitis (NEC) is the most common surgical emergency among newborns and is associated with a high morbidity and mortality. This study evaluates the long-term survival of infants requiring surgical intervention for NEC and factors affecting outcome. METHODS A retrospective review of infants requiring surgery for complications of NEC at a tertiary care, pediatric hospital over a 16-year period was performed. Patients were evaluated for early and late morbidity and mortality, length of intestinal resection, presence of the ileocecal valve (ICV), days of parenteral nutrition (PN), and growth. RESULTS Two hundred forty-nine patients were included, with an average gestational age of 30 +/- 5 (+/- SD) weeks and birth weight of 1.50 +/- 0.89 kg. The surgical mortality rate was 45%, with survivors (137) being larger (P < .001) and older (P < .001) at time of birth than nonsurvivors. Mortality rates varied inversely with gestational age and birth weight. Surgical survivors had an average of 21 +/- 26 cm of intestinal length resected. The ileocecal valve was preserved in 45% of infants. Growth was similar between infants with or without an ICV. Stratification of length of intestine resected showed that infants with larger resections had greater requirements for parenteral nutrition, but this had no influence on long-term growth at follow-up. CONCLUSIONS Survivors of NEC are characterized by greater gestational age, greater birth weight, and older postgestational age at surgery. Infants who underwent greater intestinal resections required longer periods of PN. The length of intestine resected or presence of the ileocecal valve had no overall bearing on long-term outcome.


Pediatric Clinics of North America | 1993

Inguinal Hernia and Umbilical Anomalies

L.R. Scherer; Jay L. Grosfeld

Inguinal hernias and umbilical anomalies remain the most common congenital anomalies. The loss of testis, ovary, or a portion of bowel from an irreducible hernia and the infectious complications of umbilical anomalies continue to be a threat to infants and young children. This article reviews the embryology, clinical features, and treatments of these anomalies and discusses some of the unusual and special considerations of these children.


Journal of Pediatric Surgery | 2000

Efficacy of primary and secondary video-assisted thoracic surgery in children

Frederick J. Rescorla; Karen W. West; Cynthia A. Gingalewski; Scott A. Engum; L.R. Scherer; Jay L. Grosfeld

BACKGROUND/PURPOSE Video-assisted thoracic surgery (VATS) is used commonly for diagnostic and therapeutic procedures in children. The purpose of this study was to determine the accuracy, efficacy, and complications associated with primary and secondary VATS in children. METHODS Eighty-seven infants, children, and adolescents underwent 104 VATS procedures between March 1993 and April 1999. There were 47 boys and 40 girls with an age range of 6 months to 19 years. VATS was performed for excision of pulmonary nodule (n = 51), biopsy of infiltrate (n = 14), excision or biopsy mediastinal mass (n = 12), decortication of empyema (n = 16), pleurodesis and bleb excision for pneumothorax (n = 5), pleurolysis for P32 administration (n = 3), esophageal myotomy (n = 2), and thymectomy (n = 1). In 6 children a contralateral thoracic procedure was performed along with VATS (3 VATS, 3 thoracotomies). Secondary VATS was performed in 20 after prior thoracic procedures. RESULTS VATS was efficacious for diagnostic or therapeutic purposes in 93 cases. Overall, 11 (11%) VATS required conversion to open thoracotomy. Average length of thoracostomy tube drainage (CTD) was 2.2 days, and average length of stay (LOS) was 3.7 days. Complications included prolonged air leak (> 7 days) in 3 (2 empyema, 1 nodule). Two children with malignancy and pulmonary infiltrates died within 30 days of progressive respiratory failure. There were no bleeding complications or deaths related to VATS. CONCLUSIONS VATS is a safe and effective primary and secondary procedure in children resulting in a short length of CTD and LOS. Duration of CTD and LOS are prolonged if empyema is associated with a bronchopleural fistula, and VATS may not be of value in this setting.

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