Kevin P Moriarty

Baystate Medical Center, Springfield, MA, USA

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Publications (24)34.29 Total impact

  • Article: Surgical Management of Pediatric Adhesive Bowel Obstruction.
    Justin Lee, David B Tashjian, Kevin P Moriarty
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    ABSTRACT: Abstract Introduction: The objective of this study was to analyze a population-based database for recent trends in surgical management of pediatric adhesive bowel obstruction and compare open versus laparoscopic lysis of adhesions (LOA). Subjects and Methods: Pediatric adhesive bowel obstruction cases were identified in the Kids' Inpatients Database from 1997, 2000, 2003, 2006, and 2009. Data analysis included patients' demographics, hospital variables, length of stay (LOS), and total hospital charges (THC). Complications analysis included postoperative shock, hemorrhage, hematoma, seroma, wound complications, infection, fistula, and pulmonary complications. Results: In total, 20,679 pediatric adhesive bowel obstruction cases were identified during the study period. These were characterized by a median age of 11 years old, with 59.0% of the population female. Overall treatment included 88.6% open and 11.4% laparoscopic LOA. A more than twofold increase in utilization of laparoscopy was observed from 7.2% in 1997 to 17.2% in 2009 (P<.001). Complication rates were lower for laparoscopic LOA versus open (5.6% versus 10.4%; odds ratio 0.512; 95% confidence interval 0.394-0.667; P<.001), especially accidental puncture or laceration rate (2.2% versus 3.9%; odds ratio 0.566; 95% confidence interval 0.375-0.854; P=.006). Conversion to open LOA occurred in 1.9%. Laparoscopy was associated with a shorter median LOS (6 versus 8 days; P<.001) and a lower mean THC ($38,241.11 versus $48,552.51; P<.001) compared with open LOA. Multivariate regression analysis did not find hospital bed size, location, teaching status, and regions to be statistically significant predictors for utilization of laparoscopy. Conclusions: Laparoscopic LOA is a safe option for pediatric adhesive bowel obstruction with lower complication rates and a reduced economic burden. Despite the increase in utilization of laparoscopy in recent years, only a minority of patients underwent laparoscopic LOA. Further studies are needed to identify and characterize the subgroup of patients who benefit from laparoscopic LOA.
    Journal of Laparoendoscopic & Advanced Surgical Techniques 06/2012; · 1.40 Impact Factor
  • Article: Missed opportunities in the treatment of pediatric appendicitis.
    Justin Lee, David B Tashjian, Kevin P Moriarty
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    ABSTRACT: This study sought to evaluate the outcomes of in-hospital delay and determine associated co-morbidities in the treatment of pediatric acute appendicitis. This was a retrospective analysis of the national inpatient sample from 2000 to 2008. Immediate treatment was defined as treatment in hospital day 0 or 1. Delay in treatment was defined as treatment in hospital day 2 and beyond. During the study period, 683,016 pediatric appendicitis were identified. 17,737 (2.6%) experienced a delay in treatment. Multivariate analysis identified associated co-morbidities for delay in treatment: ALL (OR 12.84, CI 11.04-14.94), AML (OR 9.41, CI 7.58-11.68), neutropenia (OR 5.53, CI 4.60-6.65), and ovarian cyst without torsion (OR 3.17, CI 2.94-3.42). Surgical management included more than 13-fold increase in drainage procedures (5.5 vs. 0.4%), sixfold increase in cecectomy (1.2 vs. 0.2%), 14-fold increase in hemicolectomy (1.4 vs. 0.1%), 11-fold increase in small bowel laceration suture repair (1.1 vs. 0.1%), and 15-fold increase in small bowel resection (1.5 vs. 0.1%). In-hospital delay beyond 2 days is associated with significant negative outcomes with regard to complications, economic burden, and subsequent surgical management. Using the co-morbidity index, high-risk co-morbidities with associated delay in treatment were identified.
    Pediatric Surgery International 05/2012; 28(7):697-701. · 1.25 Impact Factor
  • Article: Less is more: management of pediatric splenic injury.
    Justin Lee, Kevin P Moriarty, David B Tashjian
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    ABSTRACT: To analyze national trends in the nonoperative management of pediatric splenic injury. Retrospective cohort analysis. All children and adolescents 18 years or younger from 2 national databases who were hospitalized with pediatric splenic injury. Data from 9 years of the National Inpatient Sample database (2000-2008) and 3 years of Kids' Inpatient Database (2000, 2003, and 2006). We calculated and chronicled rates of splenectomy, angiography, and transfusion from 2000 to 2008. During the study period, the rate of splenectomy decreased from 18.25% to 10.86%. Changes in nonoperative management included more than a 2-fold increase in angiography, from 2.43% to 6.94%, and a significant increase in transfusion, from 7.71% to 11.49%. Operative management was associated with increased length of stay (9.15 vs 6.52 days) and higher mean total hospital charges ($74 981.26 vs $36 156.30). Cases occurring in rural locations were more likely to undergo operative management (odds ratio, 1.24 [95% CI, 1.18-1.31]; P < .001), but less likely to undergo angiography (0.82 [0.76-0.89]; P < .001). Children with pediatric splenic injury are undergoing fewer splenectomies but more angiography. Rural location may be an independent risk factor for operative management. Further studies are needed to assess for disparity in access to and availability of aggressive nonoperative management.
    Archives of surgery (Chicago, Ill.: 1960) 05/2012; 147(5):437-41. · 4.32 Impact Factor
  • Article: Is partial colectomy the operation of choice in pediatric Clostridium difficile colitis?
    Justin Lee, David B Tashjian, Kevin P Moriarty
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    ABSTRACT: This study examined the national trends in incidence and surgical management of pediatric Clostridium difficle colitis (CDC) hospitalizations. This was a cross-sectional Nationwide Inpatient Sample (NIS) analysis of pediatric CDC from 2000 to 2008. Data analysis included patient demographics, procedures, length of stay (LOS), total hospital charges (THC), and in-hospital mortality. During the 9-year study period, the total number of CDC hospitalizations per year increased almost twofold, from 2,513 in 2000 to 4,817 in 2008. The rate per 100,000 discharges followed a similar trend, increasing from 38.08 in 2000 to 72.57 in 2008. Abdominal colectomy was performed in 0.35 %, with partial colectomy performed more often than total colectomy. Mortality, mean LOS, and mean THC were not statistically different between partial versus total colectomy. Children with ulcerative colitis were more likely to undergo total colectomy, (OR 35.700, CI 11.025-115.98, P < 0.001). Infants under the age of 1 year were less likely to undergo total colectomy (OR 0.568, 0.477-0.677, P < 0.001). Pediatric hospitalizations for CDC are on the rise. Partial colectomy is performed more often than total colectomy without statistical compromise of mortality, length of stay, and total hospital charges. Further studies are needed to determine the standard surgical management of pediatric CDC.
    Pediatric Surgery International 04/2012; 28(6):603-7. · 1.25 Impact Factor
  • Article: Primary repair of facial dog bite injuries in children.
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    ABSTRACT: The management of dog bite wounds is controversial, and current data on risk of infection are variable and inconsistent. Furthermore, the use of prophylactic or empiric antibiotics for the treatment of these wounds is debatable. We investigate the rate of wound infections and other complications after primary repair of pediatric facial dog bite injuries. We reviewed 87 consecutive patients aged 18 years or younger who had facial dog bite injuries from January 2003 to December 2008. Variables examined were age, sex, setting of repair, number of sutures used for repair, whether surgical drains were used, and antibiotic administration. End points measured were incidence of wound infection, need for scar revision, and any wound complications. The mean age of patients was 6.8 years, and the majority were women (53%). All facial injuries were primarily repaired at the time of presentation either in the emergency department (ED; 46%), operating room (OR; 51%), or an outpatient setting (3%). All patients received an antibiotic course, none of the patients developed wound infection, and no subsequent scar revisions were performed. Three patients repaired in the OR underwent placement of a total of 4 closed-suction drains. The mean (SD) age of patients repaired in the OR was significantly younger than those repaired in the ED (5.7 [3.9] vs 8.0 [4.5] years, respectively; P < 0.01). The number of sutures used were greater for patients repaired in the OR than in the ED (66.4 [39.6] vs 21.7 [12.5], respectively; P < 0.01). Intuitively, younger patients and patients with greater severity injuries are more likely to undergo repair in the OR, and this was supported by our data. Overall, we found that primary repair of pediatric facial dog bite injuries, including complex soft-tissue injuries, is safe when performed in conjunction with antibiotic administration; however, further cross-specialty studies are needed to fully characterize these end points in a larger population.
    Pediatric emergency care 08/2011; 27(9):801-3. · 0.92 Impact Factor
  • Article: Geographic distribution of community-acquired methicillin-resistant Staphylococcus aureus soft tissue infections.
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    ABSTRACT: The goal of this study is to look at the geographic growth patterns of community-acquired methicillin-resistant Staphylococcus aureus (MRSA) infections in our local region and to determine if specific geographic areas are at increased risk. After Institution Review Board approval (132603-3), a retrospective chart review was conducted of 614 patients who underwent incision and drainage of an abscess by a single pediatric surgical practice from January 2004 to December 2008. In addition, previously published data from 195 patients who underwent incision and drainage of an abscess from January 2000 to December 2003 were reviewed. The most commonly cultured organism found in the pediatric population undergoing incision and drainage was S aureus (n = 388), of which 258 (66%) were methicillin resistant. This is a 21% increase from the rate of MRSA cultures identified from 2000 to 2003. Geographic information system space-time analysis showed that a cluster of 14 MRSA cases was located within a 1.44-km radius between 2000 and 2003, and 5 separate clusters of more than 20 MRSA infection cases each were identified in 3 separate cities over the 8-year time span using geographic information system spatial analysis (P value = .001). Methicillin-resistant S aureus has now become the most prevalent organism isolated from cultures of community-acquired abscesses requiring incision and drainage in the pediatric population in our local region. Significant clustering of MRSA infections has appeared in several different cities within our geographic region.
    Journal of Pediatric Surgery 06/2011; 46(6):1089-92. · 1.45 Impact Factor
  • Article: The impact of vesicoureteral reflux treatment on the incidence of urinary tract infection.
    George M Wadie, Kevin P Moriarty
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    ABSTRACT: Vesicoureteral reflux (VUR) is a heterogeneous disease and its management remains one of the most controversial topics in pediatrics. Management options include surveillance, antibiotics, and surgery. The approval of dextranomer/hyaluronic acid (DHA) as a bulking agent by the Food and Drug Administration was followed by wide acceptance of endoscopic techniques as a major tool in the management of reflux. Pyelonephritis rather than VUR is the most common cause of kidney damage in children. It should be emphasized that the primary goal of diagnosing and treating VUR should be preventing this complication. There are no sufficient data in the literature to address the impact of the different treatment modalities on the incidence of febrile urinary tract infections (feb-UTIs) denoting pyelonephritis, with very few studies evaluating endoscopic treatment in light of this clear and well-defined outcome. The fact that we can correct the anatomy at the vesicoureteral junction with a simple and relatively safe outpatient procedure does not justify offering it to all patients. In this review, we attempt to critically evaluate the available literature pertaining to the impact of different treatment modalities on reducing the incidence of febrile UTIs and kidney damage, with a special emphasis on endoscopic treatment.
    Pediatric Nephrology 03/2011; 27(4):529-38. · 2.52 Impact Factor
  • Article: Geographic Distribution of Community-Acquired MRSA Soft Tissue Infections
    Journal of Pediatric Surgery. 01/2011; 46(6):1089-92.
  • Article: Hybrid notes: incisionless intragastric stapled cystgastrostomy of a pancreatic pseudocyst.
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    ABSTRACT: We present a case report of a novel hybrid natural orifice transluminal endoscopic surgery (NOTES). The operation performed was a transgastric cystgastrostomy with endoscopic guidance for a pancreatic pseudocyst. This operation was completed entirely through an existing gastrostomy site with no incisions, thus avoiding the peritoneal cavity. This is a case of a 7-year-old boy with neurologic impairment from congenital herpes simplex virus encephalitis who is tube fed. He had acute pancreatitis and developed a 9 cm pancreatic pseudocyst. The pseudocyst failed to resolve after 6 weeks and developed a mature wall. Due to a history of multiple abdominal surgeries and known abdominal adhesions, a minimally invasive approach that would avoid entering the peritoneal cavity was the desired approach. The technique involved a trans-oral endoscope for visualization and the use of the gastrostomy as access to the gastric lumen and pseudocyst. The pancreatic pseudocyst was stabilized with two T-fasteners and confirmed with needle aspiration under endoscopic visualization. The pseudocyst was then opened with the LigaSure (Valleylab, Boulder, CO). The cystgastrostomy anastomosis was completed with an Endopath ETS-Flex Articulating Linear Stapler/Cutter (Ethicon Endo-Surgery, Inc, Cincinnati, OH). The operation took less than 2 hours and was completed without an incision. Under the policies of the Human Research Protection Program, review of a single case is outside the scope of the definition of human subjects research and does not require institutional review board review and approval. The patient did well postoperatively and had a dramatic reduction in size of the pancreatic pseudocyst to 3.5 cm by 2 weeks. Hybrid NOTES cystgastrostomy performed through an existing gastrocutaneous fistula is an excellent approach for minimally invasive drainage of pancreatic pseudocysts.
    Journal of Pediatric Surgery 01/2010; 45(1):80-3. · 1.45 Impact Factor
  • Article: Endoscopic treatment with Deflux for refluxing duplex systems.
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    ABSTRACT: The aim of this study was to review the experience of a single institution with the endoscopic Deflux (Q-Med Scandinavia, Uppsala, Sweden) procedure and assess its effectiveness in the treatment of refluxing duplex systems. A retrospective review of all patients that underwent endoscopic Deflux treatment for vesicoureteral reflux (VUR) in duplex systems between June 2003 and July 2007 was performed. Data collection included: age, gender, side of refluxing ureter, preoperative radiologic grade of VUR on a voiding cystourethrogram (VCUG), presence of VUR on a radionuclide VCUG 3 months postprocedure, volume of Deflux injected, number of Deflux injections performed per patient, and number of patients that underwent reimplantation surgery. Sixteen patients with duplex systems, two being bilateral, for a total of 18 duplex ureteral systems, underwent the Deflux procedure. Grades of reflux were as follows: grade II: 4 ureters; grade III: 8 ureters; grade IV: 4 ureters; and grade V: 2 ureters. Deflux injection volume ranged from 0.28 to 1.5 cc (mean, 0.84). Fourteen ureteral systems required one injection, three required two injections, and one required three injections. The overall success rate of the procedure after a maximum of three injections was 94%. One patient with preoperative unilateral grade V reflux had persistent high-grade reflux after two injections and opted to proceed with surgical reimplantation. The mean follow-up was 24 months (mean, 6-48). We conclude that the Deflux procedure is a safe, effective minimally invasive treatment alternative for patients with refluxing duplex systems.
    Journal of Laparoendoscopic & Advanced Surgical Techniques 06/2009; 19(5):679-82. · 1.40 Impact Factor
  • Article: Improving tactile sensation in minimally invasive pediatric surgery.
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    ABSTRACT: The aim of this study was to investigate factors that impact tactile sensation during minimally invasive pediatric surgery. Three different 3-mm Maryland laparoscopic instruments were tested with and without the resistance of a trocar (Ethicon 3-mm): Jarit (24-cm shaft, 113 g), Storz (30-cm shaft, 62 g), and an ultra-light prototype (24-cm shaft, 5 g). Experiments were conducted in a custom-designed laparoscopic simulator that directs instruments at fixed angles toward a central target. Surgeons were instructed to insert the instruments into the simulator and make contact with the target with as little force as possible. Instantaneous pressure measurements on the target were measured and recorded every 0.0001 seconds. The differences between impact pressures were compared with a paired, two-tailed, Student's t test. Twenty-seven (27) surgeons participated in the study. The ultra-light prototype had significantly lower impact pressures than the Storz instrument at all angles both with a trocar (P < 0.05) and without a trocar (P < 0.001). The ultra-light prototype had significantly lower impact pressures than the Jarit instrument at all angles in the absence of a trocar (P < 0.001), but with a trocar in place the only significant difference was at 5 degrees (P < 0.001). The presence of the trocar on the ultra-light prototype had a negative impact on tactile sensation that was statistically significant (P < 0.01). The presence of a trocar negatively impacted the surgeon's tactile sensation. Decreasing instrument mass by 10- to 20 fold did make a statistically significant improvement in tactile sensation.
    Journal of Laparoendoscopic & Advanced Surgical Techniques 08/2007; 17(4):501-3. · 1.40 Impact Factor
  • Article: The deflux procedure reduces the incidence of urinary tract infections in patients with vesicoureteral reflux.
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    ABSTRACT: The aim of this study was to review the experience of a single institution with the Deflux (Q-Med Scandinavia; Uppsala, Sweden) procedure and assess its effectiveness in reducing the incidence of urinary tract infections (UTIs) in children with vesicoureteric reflux (VUR). After institutional review board approval, the charts of 100 patients with VUR, who presented between June 2003 and June 2005, were prospectively reviewed. Data collected included: demographics, the number of preoperative and postoperative UTIs, a radiologic grade of VUR on a voiding cystourethrogram (VCUG) and the presence of VUR on a radionuclide VCUG 3 months after the procedure. Patients were continued on oral antibiotics until urine culture at 3 months was negative and no reflux was demonstrated on VCUG. The student's t test was used for data analysis. The mean age was 3.8 +/- 0.3 years, and 76% were girls. From 155 ureters treated, 10 had Grade I reflux, 42 Grade II, 76 Grade III, 25 Grade IV, and 2 Grade V. A second injection was required in 22 ureters (14.2%). The overall success rate of the procedure (Grade 0 reflux at 3 months) was 77.4% after the first injection and 83.9% after a second injection. The success rate per grade was: 100% for Grade I, 88.1% for Grade II, 86.8% for Grade III, 64% for Grade IV, and 50% for Grade V. The mean follow-up was 446 +/- 20 days. The mean volume injected/ureter was 0.6 +/- 0.03 mL. Thirteen (13) patients had UTIs after the procedure, compared to 75 before. There was a 5-fold reduction in the incidence of UTIs/year, from a mean of 0.68 +/- 0.09 pre- to 0.12 +/- 0.04 postinjection (P = 0.001). The majority of UTIs were caused by Escherichia coli (74% pre- and 82% postinjection). We conclude that the Deflux procedure is effective not only in eliminating VUR on radiologic studies, but also in reducing the incidence of UTIs and antibiotic use in children with VUR.
    Journal of Laparoendoscopic & Advanced Surgical Techniques 07/2007; 17(3):353-9. · 1.40 Impact Factor
  • Article: Giant polypoid gastric heterotopia of the jejunum presenting with intermittent intussusception.
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    ABSTRACT: We report the case of a 17-year-old female with symptoms of intermittent small bowel obstruction. Computed tomography scan of the abdomen revealed an intussusception. The patient underwent a laparoscopic-assisted resection of the mass, which proved to be gastric heterotopia of the jejunum. We report on the case, discuss the surgical approach, and review the pertinent literature.
    Journal of Laparoendoscopic & Advanced Surgical Techniques 05/2007; 17(2):249-51. · 1.40 Impact Factor
  • Article: Nonoperative correction of pectus carinatum with orthotic bracing.
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    ABSTRACT: This study sought to evaluate the efficacy of nonoperative compression in correcting pectus carinatum in children. Children presenting with pectus carinatum between August 1999 and January 2004 were prospectively enrolled in this study. The management protocol included custom compressive bracing, strengthening exercises, and frequent clinical follow-up. There were 30 children seen for evaluation. Their mean age was 13 years (range, 3-16 years) and there were 26 boys and 4 girls. Of the 30 original patients, 6 never returned to obtain the brace, leaving 24 patients in the study. Another 4 subjects were lost to follow-up. For the remaining 20 patients who have either completed treatment or continue in the study, the mean duration of bracing was 16 months, involving an average of 3 follow-up visits and 2 brace adjustments. Five of these patients had little or no improvement due to either too short a follow-up or noncompliance with the bracing. The other 15 patients (75%) had a significant to complete correction. There were no complications encountered during the study period. Compressive orthotic bracing is a safe and effective alternative to both invasive surgical correction and no treatment for pectus carinatum in children. Compliance is critical to the success of this management strategy.
    Journal of Laparoendoscopic & Advanced Surgical Techniques 05/2006; 16(2):164-7. · 1.40 Impact Factor
  • Article: Posterior urethral valves in a newborn with imperforate anus: clinical presentation and management.
    Gregory T Banever, Kevin P Moriarty
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    ABSTRACT: Anorectal malformations are frequently associated with urinary tract abnormalities, which generally consist of vesicoureteral reflux, renal agenesis, and bladder dysfunction. Posterior urethral valves associated with anorectal malformations are exceedingly rare. We report the third case described in literature and the unique management.
    Journal of Pediatric Surgery 09/2005; 40(8):1332-4. · 1.45 Impact Factor
  • Article: Ductal carcinoma in situ in a 16-year-old adolescent boy with gynecomastia: a case report.
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    ABSTRACT: Ductal carcinoma in situ (DCIS) of the male breast is rare. Even more rare is the finding of DCIS in association with gynecomastia. After an extensive literature search, only two cases have been reported in the literature, both in adults. Here we present the case of a 16-year-old adolescent boy who presented with pubertal gynecomastia that was treated with bilateral subcutaneous mastectomies. A DCIS focus was found in the right breast specimen, and the patient underwent bilateral completion total mastectomies uneventfully. Despite its rarity, surgeons should be aware of the possibility of the breast of adolescents with gynecomastia harboring a neoplastic focus.
    Journal of Pediatric Surgery 09/2005; 40(8):1349-53. · 1.45 Impact Factor
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    Article: Geographic information system localization of community-acquired MRSA soft tissue abscesses.
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    ABSTRACT: Soft tissue infections with methicillin-resistant Staphylococcus aureus (MRSA) pose an ever-increasing risk to children in the community. Although historically these infections were limited to children with prolonged hospitalization, the authors have seen an increase in community-acquired infections in children without identifiable risk factors. The goal of this study is to determine the incidence of truly community-acquired MRSA soft tissue infections in our community and geographically map regions of increased risk. After obtaining the institutional review board's approval, a retrospective chart review was conducted on 195 patients records who underwent an incision and drainage of soft tissue infections from January 1, 2000, to December 31, 2003. Thirteen patients were excluded from the study because no cultures were taken at the time of incision and drainage. The most common organism isolated from wound culture was S aureus , 40% (73/182), of which 45% (33/73) were MRSA. Eighty-one percent (27/33) of MRSA infections were in Springfield, 1 of 18 towns represented in the patient population. Geographic information system analysis identified a significant MRSA cluster 1.96 km in diameter within the city of Springfield. Geography proved to be a significant risk factor for presenting with MRSA infection. Geographic maps of antibiotic resistance can be used to guide physician antibiotic selection before culture results are available. This has significant implications for the health care provider in proper antibiotic selection within the community.
    Journal of Pediatric Surgery 07/2005; 40(6):962-5; discussion 965-6. · 1.45 Impact Factor
  • Article: Feasibility of thoracoscopic U-clip esophageal anastomosis: an alternative for esophageal atresia reconstruction.
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    ABSTRACT: The authors propose that U-Clips can significantly decrease the technical difficulty of performing thoracoscopic esophageal reconstruction, thus, reducing operating time, the incidence of postoperative leak, and stricture rate. After obtaining Institutional Animal Care and Use Committee approval, 3 4-kg female piglets underwent complete thoracoscopic esophageal transections. The esophagus was reconstructed thoracoscopically using S50 and S60 U-Clips over an 8F transanastomotic tube. Esophagrams were performed on postoperative day (POD) 7, 21, 44, and 77. Mean operating time was 57 minutes (45 to 75 min). Two of 3 piglets had no evidence of leak on POD 7 esophagrams. One animal had a small leak that resolved spontaneously on antibiotics. All 3 piglets tolerated a formula diet orally by POD 8. Over a 77-day survival period all 3 piglets had steady weight gain on an oral diet. U-Clips are a feasible alternative to sutures for esophageal reconstruction in thoracoscopic surgery. Further study is warranted to investigate the full potential of U-Clips in minimally invasive pediatric surgery.
    Journal of Pediatric Surgery 07/2004; 39(6):851-4. · 1.45 Impact Factor
  • Article: Quantitation of lung sealing in the survival swine model.
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    ABSTRACT: Small intercostal spaces and limited pleural space significantly limits the use of 12-mm stapling devices in pediatric thoracoscopic surgery. The goal of this study was to compare sealing of lung tissue by the 5-mm Ligasure (Valley Lab, Boulder, CO) device to a standard 12-mm Endo-GIA stapler (US Surgical, Norwalk, CT). Institutional Animal Care and Use Committee (IACUC) approval was obtained (#A3-02). Sixteen 10-kg female swine were divided between 2 survival surgical groups. Lung biopsy sections of the lingula were taken by 2 methods: group A, left anterolateral thoracotomy employing a 12-mm Endo-GIA stapler and group B, left thoracoscopy employing the Ligasure 5-mm instrument. After a 7-day survival period, lung burst pressures were measured by flow-controlled insufflation into the trachea. Burst pressure measurement reflects the first air leak. By Student's t test analysis there were no statistically significant differences between the burst pressures, biopsy weights, or operating times. Fifty percent (4 of 8) of the animals in group A (Endo-GIA), and 50% (4 of 8) of the animals in group B (Ligasure) developed the first air leak in the nonoperative lung. Two animals, one from each group, had evidence of intrapleural infections at the time of necropsy. These were asymptomatic and did not appear to affect burst pressure measurement. After 7 days of healing, lung biopsy sites created with both the Ligasure and the Endo-GIA stapler have burst strengths equal to or greater than that of normal lung tissue in the swine survival model.
    Journal of Pediatric Surgery 04/2004; 39(3):387-90. · 1.45 Impact Factor
  • Article: Pediatric hand treadmill injuries.
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    ABSTRACT: The great popularity of physical fitness in modern society has brought many pieces of exercise equipment into our homes for convenience and privacy. This trend has come with an increasing rate of injuries to children who curiously touch moving parts, including treadmill belts. Experience with a recent series of treadmill contact burns to children's hands is described in this article. A retrospective chart review at a tertiary referral center from June 1998 until June 2001 found six children sustaining hand burns from treadmills. The patients' ages at presentation ranged from 15 to 45 months (average of 31 months, three boys and three girls). All injuries occurred in the home while a parent was using the treadmill. Burns involved the palmar aspect of the hand, mostly confined to the fingers, and the severity ranged from partialto full-thickness burns. All patients were initially managed with collagenase and bacitracin zinc/polymyxin B powder dressings to second- and third-degree burns, along with splinting and range-of-motion exercises. Two patients required skin grafting at 2 weeks and 2 months for full-thickness tissue loss and tight joint contracture, respectively. At an average follow-up of 12 months, all patients had full range of motion and no physical limitation. The rate of children injured by exercise equipment is expected to increase. Friction burns to the hands remain a concern, although early recognition and appropriate management are associated with excellent functional outcomes. Protective modification of exercise machines seems to be the best approach to eliminating these injuries.
    Journal of Craniofacial Surgery 08/2003; 14(4):487-90; discussion 491-2. · 0.82 Impact Factor