Comparison of Two Laparoscopic Techniques in Management of Pediatric Inguinal Hernias.

Introduction: Many studies focus on comparing outcomes of the open method for inguinal hernia repair (IHR) and the laparoscopic method. However, few studies compare different laparoscopic techniques. With over a dozen different techniques described in the literature for laparoscopic IHR, significant opportunities exist to study the efficacy of each technique. We investigated outcomes of a subcutaneous endoscopically assisted transfixion ligation (SEATL) technique and a percutaneous internal ring suturing (PIRS). Materials and Methods: After receiving institutional review board approval, we completed a retrospective chart review of IHR performed at our pediatric tertiary care center between September 2015 and May 2020. We included all patients under the age of 18 years. We separated laparoscopic repairs from total repairs. Laparoscopic repairs were further divided into their respective techniques. Factors involving patient demographics, operative details, and postoperative complications were statistically analyzed using SPSS. Results: There was a total of 131 IHRs performed with SEATL and 124 IHRs performed with PIRS. Median operative time (minutes) differed significantly (P = .001) with SEATL at 49 (28-66) and PIRS at 55 (37-76)] minutes. Significantly more incarcerated hernias were repaired with PIRS (n = 13) than with SEATL (n = 3, P = .006). SEATL had a higher number of postoperative complications; the most significant were granulomas (n = 3, P = .09) and recurrent hernias (n = 12, P < .001). Conclusion: SEATL had a significantly higher number of postoperative complications. This may be a result of multiple factors including but not limited to the absence of electrocautery, a shorter median operative time, and utilization of absorbable suture. Modifications have been made to this technique to reduce risk of postoperative complications.

Portal Vein Thrombosis Following Splenectomy in Children: Is There a Higher Rate When Using Single-Incision Laparoscopy?

BACKGROUND: Portal vein thrombosis can be a life-threatening complication associated with a splenectomy. Laparoscopic splenectomy has been suggested to cause an increased rate of portal vein thrombosis. Our study evaluated the rate of portal vein thrombosis in pediatric patients who underwent a splenectomy via single-site laparoscopy. METHODS: A retrospective chart review was performed for all patients undergoing laparoscopic splenectomy from November 2012 to July 2019. Demographic data, operative details, postoperative imaging, and patient outcomes were obtained for analysis. Patients were contacted to determine if they had any complications for which they sought medical care elsewhere. RESULTS: There were 78 pediatric patients who underwent laparoscopic splenectomy over the 7-year period. The most common indication was sickle cell disease (70.5%). Single-incision laparoscopy was performed in 61.5% of the cases. Eight were converted to open. Eleven patients (14.1%) had a laparoscopic cholecystectomy performed during the same operation. The overall complication rate was 8.9%. A quarter of our patients had imaging within 1 year of surgery; no portal vein thrombosis was identified. In addition, over half of the patients were recontacted for follow-up questioning. None of the patients surveyed sought medical care elsewhere for a surgery-related complication or sequela of a portal vein thrombus. DISCUSSION: Single-incision laparoscopic splenectomy is a safe approach in children. Using the single-site platform allows the flexibility to perform additional operations, such as cholecystectomy, without the placement of additional ports. This analysis shows that patients undergoing single-incision laparoscopic splenectomy do not have a higher rate for portal vein thrombosis.

Reducing Constipation-Related Admissions: The Effectiveness of Antegrade Continence Enema Procedures in Children.

INTRODUCTION: Constipation in pediatrics remains a common problem. Antegrade continence enema (ACE) procedures have been shown to decrease the distress of daily therapy. Patients are able to administer more aggressive washouts in the outpatient setting. Therefore, we hypothesize that patients following an ACE procedure would have reduced admissions for constipation. METHODS: Patients who underwent an ACE procedure at a large children's hospital from 2015 to 2018 were included. Demographics, diagnosis, procedure, and preoperative/postoperative hospital admissions were analyzed. RESULTS: Forty-eight patients were included in the study. Over half were diagnosed with idiopathic constipation. Majority of patients underwent an appendicostomy (88%, n = 42). Preoperatively, 26 patients were admitted for a combined total of 63 times for constipation. Postoperatively, 4 patients were admitted for a total of 5 visits (P = .021). Twenty-eight patients required a nonscheduled appendicostomy tube replacement. CONCLUSION: This study demonstrates ACE procedures can improve constipation-related symptoms in children and are associated with decrease hospital admissions.

Perforated Appendicitis During a Pandemic: The Downstream Effect of COVID-19 in Children.

INTRODUCTION: Coronavirus Disease-19 (COVID-19) was declared a pandemic in March 2020. States issued stay-at-home orders and hospitals cancelled non-emergent surgeries. During this time, we anecdotally noticed more admissions for perforated appendicitis. Therefore, we hypothesized that during the months following the COVID-19 pandemic declaration, more children were presenting with perforated appendicitis. MATERIALS AND METHODS: This is a retrospective cohort study reviewing pediatric patients admitted at a single institution with acute and/or perforated appendicitis between October 2019 to May 2020. Interval appendectomies were excluded. COVID-19 months were designated as March, April, and May 2020. Additional analysis of March, April, and May 2019 was performed for comparison purposes. Analyzed data included demographics, symptoms, white blood cell count, imaging findings, procedures performed, and perforation status. Statistical analysis was performed. RESULTS: During the study period, 285 patients were admitted with the diagnosis of acute appendicitis with 95 patients being perforated. We identified a significant increase in perforated appendicitis cases in the three COVID-19 months compared with the preceding five months (45.6% vs 26.4%; P <0.001). In addition, a similar significant increase was identified when comparing to the same months a year prior (P = 0.003). No significant difference in duration of pain was identified (P=0.926). CONCLUSION: The COVID-19 pandemic and its associated stay-at-home orders have had downstream effects on healthcare. Our review has demonstrated a significant increase in the number of children presenting with perforated appendicitis following these stay-at-home ordinances. These results demonstrate that further investigations into the issues surrounding access to healthcare, especially during this pandemic, are warranted.

Small tunneled central venous catheters as an alternative to a standard hemodialysis catheter in neonatal patients.

BACKGROUND/PURPOSE: Continuous renal replacement therapy (CRRT) is difficult in neonates for several reasons, including problems with catheter placement and maintenance. We sought to compare outcomes between standard hemodialysis catheters (HDC) and 6Fr-tunneled central venous catheters (TC-6Fr). METHODS: We evaluated neonates who received CRRT from December 2013 - January 2018. All patients received CRRT with the Aquadex (Baxter Corporation, Minneapolis, Minnesota) circuit. Data regarding patient demographics, CRRT indication, catheter days, reason for removal, and catheter-specific complications were analyzed. RESULTS: Forty-six catheters were placed in 26 neonates; nine of these were 6Fr-tunneled catheters. The median age and mean weight at CRRT initiation was 9.5 days (IQR 4-31) and 3.5 kg (+/- 0.6 kg), respectively. TC-6Fr lasted longer (median of 28 days vs 10 days, p = 0.02), required fewer revisions (0 vs 0.16/10 catheter days) and were less commonly removed due to bleeding complications (0% vs 10.8%), occlusion (11.1% vs 18.9%), or malposition (0% vs 8.1%); none of these differences were statistically significant. TC-6Fr were associated with higher infection rates (33.3% vs 0%, p = 0.01) than HDC. CONCLUSIONS: TC-6Fr use resulted in less need for catheter revisions and provided longer-lasting vascular access, which may influence infection rates. This catheter provides neonates in need of CRRT more reliable vascular access. LEVEL OF EVIDENCE: III.

Trending diversity: Reviewing four-decades of graduating fellows and the current leadership in pediatric surgery.

PURPOSE: Diversity in the physician workforce remains a priority in healthcare as it has been shown to improve outcomes. Decisions for choosing specific fields in medicine are partly influenced by mentors, which tend to be the same sex or ethnicity. Females are starting to outnumber males in medical school and minorities are targeted for recruitment. We hypothesized that diversity in pediatric surgery has increased over time. METHODS: The recently published A Genealogy of North American Pediatric Surgery was utilized to identify graduating pediatric surgery fellows from 1981 to 2018. Organization websites were used to identify past and current leaders. A web-based analysis, including online facial recognition software, was performed. A year-to-year and decade-to-decade demographic comparison was completed. RESULTS: 1217 pediatric surgery fellows graduated between 1981 and 2018. When comparing graduates from the first and last decades, an increase from 16.9% to 39.5% for female graduates was observed (p = 0.046). A significant increase in nonwhite graduates was seen for all races (p < 0.05). Representation in leadership was White and male dominant. CONCLUSION: There was a significant increase in diversity in pediatric surgery fellowship graduates. There were increasing trends in female graduates and all nonwhite racial groups. Focusing on enhancing the pipeline and mentoring underrepresented minorities will continue to enhance this trend for the field of pediatric surgery. LEVEL OF EVIDENCE: III; Retrospective Review.

Venous thromboembolism following inpatient pediatric surgery: Analysis of 153,220 patients.

PURPOSE: To evaluate venous thromboembolism (VTE) rates and risk factors following inpatient pediatric surgery. METHODS: 153,220 inpatient pediatric surgical patients were selected from the 2012-2015 NSQIP-P database. Demographic and perioperative variables were documented. Primary outcome was VTE requiring treatment within 30 postoperative days. Secondary outcomes included length of stay (LOS) and 30-day mortality. Prediction models were generated using logistic regression. Mortality and time to VTE were assessed using Kaplan-Meier survival analysis. RESULTS: 305 patients (0.20%) developed 296 venous thromboses and 12 pulmonary emboli (3 cooccurrences). Median time to VTE was 9 days. Most VTEs (81%) occurred predischarge. Subspecialties with highest VTE rates were cardiothoracic (0.72%) and general surgery (0.28%). No differences were seen for elective vs. urgent/emergent procedures (p = 0.106). All-cause mortality VTE patients was 1.2% vs. 0.2% in patients without VTE (p < 0.001). After stratifying by American Society of Anesthesiologists (ASA) class, no mortality differences remained when ASA < 3. Preoperative, postoperative, and total LOSs were longer for patients with VTE (p < 0.001 for each). ASA ≥ 3, preoperative sepsis, ventilator dependence, enteral/parenteral feeding, steroid use, preoperative blood transfusion, gastrointestinal disease, hematologic disorders, operative time, and age were independent predictors (C-statistic = 0.83). CONCLUSIONS: Pediatric postsurgical patients have unique risk factors for developing VTE. LEVEL OF EVIDENCE: Level II.

Histone-Complexed DNA Fragments Levels are Associated with Coagulopathy, Endothelial Cell Damage, and Increased Mortality after Severe Pediatric Trauma.

BACKGROUND: The release of damage-associated molecular pattern molecules in the extracellular space secondary to injury has been shown to cause systemic activation of the coagulation system and endothelial cell damage. We hypothesized that pediatric trauma patients with increased levels of histone-complexed DNA fragments (hcDNA) would have evidence of coagulopathy and endothelial damage that would be associated with poor outcomes. METHODS: We conducted a prospective observational study of 149 pediatric trauma patients and 62 control patients at two level 1 pediatric trauma centers from 2013 to 2016. Blood samples were collected upon arrival and at 24 h, analyzed for hcDNA, coagulation abnormalities, endothelial damage, and clinical outcome. Platelet aggregation was assessed with impedance aggregometry (Multiplate) and coagulation parameters were assessed by measuring prothrombin time ratio in plasma and the use of viscoelastic techniques (Rotational Thromboelastometry) in whole blood. RESULTS: The median age was 8.3 years, the median injury severity score (ISS) was 20, and overall mortality was 10%. Significantly higher levels of hcDNA were found on admission in patients with severe injury (ISS > 25), coagulopathy, and/or abnormal platelet aggregation. Patients with high hcDNA levels also had significant elevations in plasma levels of syndecan-1, suggesting damage to the endothelial glycocalyx. Finally, significantly higher hcDNA levels were found in non-survivors. CONCLUSION: hcDNA is released following injury and correlates with coagulopathy, endothelial glycocalyx damage, and poor clinical outcome early after severe pediatric trauma. These results indicate that hcDNA may play an important role in development of coagulation abnormalities and endothelial glycocalyx damage in children following trauma.

Massive transfusion in pediatric trauma: analysis of the National Trauma Databank.

BACKGROUND: Massive transfusion (MT) in pediatric trauma has been described in combat populations and other single institutions studies. We aim to define the incidence of MT in a large US civilian pediatric trauma population, identify predictive parameters of MT, and the mortality associated with MT. METHODS: Data from the National Trauma Databank (2010-2012), a trauma registry maintained by the American College of Surgeons, were analyzed. We included pediatric trauma patients ≤14 y that underwent MT, as defined by 40 mL/kg of blood products within the first 24 h after admission. We compared the MT group with children receiving any transfusion within the same time frame. Univariate and multivariate analysis were performed. RESULTS: Of 356,583 pediatric trauma patients, 13,523 (4%) received any transfusion in the first 24 h and 173 (0.04%) had a MT. On multivariate analysis, factors predicting MT were: older patients (5-12: OR 2.71, P = 0.006, and ≥12: OR 5.14, P < 0.001), hypothermic patients (temperature <35: OR 2.48, P < 0.025), low Glasgow Coma Scale (Glasgow Coma Scale <8: OR 2.82, P = 0.009), and Injury Severity Scores ≥25 (OR 2.01, P = 0.03). Overall mortality for the entire group, any transfusion group, and MT group were 2.5%, 13.6%, and 50.6%, respectively (P < 0.001). CONCLUSIONS: MT in pediatric trauma is an uncommon event associated with a significant mortality. Patients undergoing MT are older, more likely to be hypothermic and have sustained more severe injuries as measured by traditional trauma scoring systems than transfused trauma patients.

Outcome assessment of renal replacement therapy in neonates.

BACKGROUND: Recent advances in renal replacement therapy (RRT) have brought about a proliferation of dialysis in neonates (<30 d). This study aimed to assess morbidity and mortality after RRT initiation in this population. METHODS: Retrospective chart review of all patients between 2006 and 2014 requiring RRT initiated in the first 30 d of life was performed. RESULTS: A total of 49 patients were identified, of which 39 were boys and 10 were girls. Thirty-two patients (65%) had end-stage renal disease, 11 (22%) had errors of metabolism, and six (12%) required RRT for other pathologies. Median age and weight at RRT onset were 6 (4-14) d and 3.1 (2.7-4.0) kg, respectively. A total of 201 surgeries were performed. Excluding catheter revisions, 83 new hemodialysis (HD) and 28 new peritoneal dialysis lines were placed, with maximum of six HD and four peritoneal catheters placed in single patient. Catheter-associated morbidities occurred in 100% of patients. Most common complications for HD included circuit clotting (87%), bleeding (68%), and bacteremia (50%). Peritoneal dialysis complications included peritonitis (83%), malpositioned catheters (72%), and leaks (55%). Overall mortality was 65.3%, with 56% of all deaths occurring within first month of life and 94% occurring within first year. Among long-term survivors (median follow-up of 5.3 y), 44% were severely and 22% moderately developmentally delayed. CONCLUSIONS: Although RRT is becoming more technically feasible for neonates with renal and metabolic diseases, it remains associated with significant morbidity and mortality. Pediatric surgeons must be aware of the challenges, taking them into account when considering the care of these critically ill children.

Routine utilization of single-incision pediatric endosurgery (SIPES): a 5-year institutional experience.

BACKGROUND: Single-incision pediatric endosurgery (SIPES) allows operation through one access site, eliminating the multiple sites traditionally used. There are few large series evaluating the versatility of SIPES. The purpose of this study is to review a 5-year single-institution experience with routine SIPES use. PATIENTS AND METHODS: This is an Institutional Review Board-approved retrospective analysis of prospectively collected data. All SIPES cases from March 2009 to December 2013 were included. Our database contains demographics, procedure type, operative duration, estimated blood loss, instance of added ports or conversion to open, complications, and follow-up duration. RESULTS: Of 1322 SIPES operations performed, most (82.1%) were appendectomies and cholecystectomies. Of 871 (66%) patients seen in follow-up, with a median duration of 26 days, 53 (6.1%) experienced postoperative complications. Forty-two cases (4.8%) were surgical-site infections, of which 4 required drainage. Less frequent complications that required operative intervention include recurrent inguinal hernia (n=4), umbilical hernia (n=3), intraabdominal abscess (n=1), bleeding (n=1), abdominal compartment syndrome (n=1), bowel obstruction (n=1), stitch granuloma (n=1), and persistent postoperative pain (n=1). CONCLUSIONS: Operative times and complication rates are comparable to those in prior reported multiport laparoscopic series, allowing safe integration of SIPES into the routine of a surgical practice for most common procedures.

Minimal access laparoscopic surgery for treatment of ulcerative colitis and familial adenomatous polyposis coli in children and adolescents.

BACKGROUND: Laparoscopic restorative proctocolectomy is standard surgical treatment for patients with ulcerative colitis (UC) and familial adenomatous polyposis coli (FAP). Scar burden can be minimized by reducing the number of laparoscopic ports. The aim of this study is to review the authors' experience with reduced-port laparoscopy in this setting and to compare it with conventional laparoscopy using multiple ports. MATERIALS AND METHODS: Charts of pediatric patients undergoing colectomy for UC or FAP between 2009 and 2012 were retrospectively reviewed. Patients who had the operation performed through one or two multichannel ports were assigned to the minimal access (MA) study group. Patients who had four or five single-channel ports with or without an additional small laparotomy were assigned to the LAP group. RESULTS: Twenty-two patients were identified. Ages at first operation were 2-18 years (median, 13.5 years). There were no conversions to laparotomy and no mortality. Mean operative times for the MA and LAP groups, respectively, were 250 and 284 minutes for abdominal colectomy with end ileostomy (P=.15), 198 and 301 minutes for completion proctectomy with diverting loop ileostomy (DLI) (P=.26), and 455 and 414 minutes for proctocolectomy with ileal pouch-anal anastomosis and DLI (P=.72). A major complication requiring laparotomy occurred in 1 patient (9%) in the MA group and in 2 patients (18%) in the LAP group. CONCLUSIONS: Minimal access laparoscopic surgery for UC and FAP is safe and feasible. A slightly larger incision at the ostomy site facilitates extraction of the specimen and extracorporeal construction of a J-pouch. Operative times and hospital stay are comparable to those with multiport laparoscopy.

Predictors of radiolucent foreign body aspiration.

BACKGROUND: Children frequently present for suspected foreign body aspiration, many have mild symptoms and/or negative radiographs raising the question of a radiolucent foreign body aspiration. METHOD: Retrospective review of patients having bronchoscopy for suspected radiolucent foreign body aspiration from 2000 to 2010 collecting demographics, history, hospital presentation, radiographic, and operative details. Pearson's correlation was used between event history, presentation, radiographic details and bronchoscopically identified foreign body with P value <0.01. RESULTS: 138 patients, mean age 2.6 years, mean weight 15.6 kg, 68% male. Event symptoms: 81% witnessed events, 64% wheezing, 43% coughing, 39% choking, 6% stridor, and 0.7% lethargy. Hospital presentation: 70% persistent symptoms, wheezing 56%, coughing 15%, desaturations 11%, stridor 7%, choking 4%, and lethargy 1%. 92% of patients had a chest x-ray; air trapping found in 38%, and lung collapse in 21%. 2 patients received CT scans; 1 had lung collapse. Bronchoscopy identified foreign bodies in 93% of patients: food 68%, plastic 18%, non-descript 11%, rocks 3%. No correlations between event symptoms, hospital presentation, radiographs and foreign body presence. CONCLUSION: Event history, hospital presentation, and radiographs are insufficient in proving the absence of a radiolucent foreign body. Patients with suspected radiolucent foreign body aspiration should undergo diagnostic bronchoscopy prior to discharge.

Is there an increased risk of complications with laparoscopy looking for a contralateral patent processus vaginalis?

BACKGROUND: In young children with a unilateral congenital inguinal hernia, the relatively high incidence of an occult contralateral patent processus vaginalis (CPPV) has led to the practice of laparoscopic contralateral exploration. The effect on postoperative complications such as surgical site infection from performing the laparoscopy has not been previously reported. PATIENTS AND METHODS: A retrospective review was conducted on all patients who underwent a unilateral inguinal hernia repair from January 1, 2000 to March 1, 2010. We compared those children who underwent laparoscopic evaluation of the contralateral inguinal ring with those who did not. Patient demographics and operative data outcomes were evaluated. Student's t test was used to compare continuous variables, and the chi-squared test with Yates's correction was used for discrete variables. RESULTS: There were 1164 patients who underwent a unilateral inguinal hernia repair during the 10-year study period, and laparoscopy was used in 1010 patients. There were no intraoperative complications from the laparoscopy. In the group who underwent laparoscopy, the mean age was 4.0±3.6 years old, and 88% were male. At laparoscopic exploration, 315 (31%) patients were found to have a CPPV. There were 10 patients (1.0%) who developed a surgical site infection. Infection developed in the side used for laparoscopic exploration in 9 patients and in the contralateral side in 1 patient. All patients with surgical site infections were treated initially with oral antibiotics. Abscesses developed in 2 patients, requiring incision and drainage. No patient required hospital admission or reoperation. In the 154 patients who did not undergo laparoscopy, mean age was 4.3±4.4 years (P=.35), and 85.8% were male (P=.54). There was one wound infection identified in this control group (0.6%) (P=1.00). There was no difference in rate of recurrence (control group, 0%; exploration group, 0.6%; P=.72). CONCLUSIONS: There is minimal risk of infection or recurrence following unilateral inguinal hernia repair, and this risk is not increased with the use of contralateral exploration using laparoscopy.

Evaluation of ultrasonographic parameters in the diagnosis of pyloric stenosis relative to patient age and size.

INTRODUCTION: Pyloric thickness of 3 mm or higher and length of 15 mm or higher by ultrasonography (US) is widely accepted as diagnostic criteria for pyloric stenosis (PS). However, infants presenting at earlier ages are held to this same criteria, which may not be applicable. METHODS: Retrospective review was conducted on patients evaluated with pyloric US to rule out PS from May 2010 through December 2010. Pearson correlation was used to detect an association between weight and age with pyloric thickness and length. Sensitivity and specificity for US parameters were determined. RESULTS: Three hundred four patients underwent 318 ultrasounds, of which 67 had PS. Of those with PS, age and weight had a positive correlation with thickness (P < .007), and age positively correlated with length (P < .001). In patients with and without PS, there was a negative correlation for both age and weight with thickness (P < .02). Those who did not have PS held a stronger negative correlation between age and thickness (P = .002). Overall, US had a 100% sensitivity and specificity for PS. Thickness of 3 mm or higher was 100% sensitive and 99% specific, and pyloric length of 15 mm or higher was 100% sensitive and 97% specific. CONCLUSIONS: Although significant associations between age and weight with pyloric thickness and length may exist, our data indicate that this does not have an impact on the diagnostic criteria for PS.

Predictors of failed enema reduction in childhood intussusception.

BACKGROUND: Initial management of intussusception is enema reduction. Data are scarce on predicting which patients are unlikely to have a successful reduction. Therefore, we reviewed our experience to identify factors predictive of enema failure. METHODS: A retrospective review of all episodes of intussusception over the past 10 years was conducted. Demographics, presentation variables, colonic extent of intussusceptions, and hospital course were collected. Extent of intussusception was classified as right, transverse, descending, and rectosigmoid. Episodes were grouped as success or failure of enema reduction and compared using the Student t test for continuous variables and χ(2) test for dichotomous variables. Significance was P less than .05. RESULTS: We identified 405 episodes of intussusception and 371 attempts at enema reduction. There were 285 successful enema reductions. There was no difference between groups in age; sex; or the presence of emesis, fever, or abdominal mass. The failed enema group was more likely to have had symptoms over 24 hours before presentation (P = .006), bloody diarrhea (P < .001), and lethargy (P < .001). The chance of success diminished with colonic extent (right, 88%; transverse, 73%; left, 43%; colorectal, 29%; P < .001). CONCLUSION: Predictors of failed enema reduction of intussusception include presence of symptoms over 24 hours, diarrhea, lethargy, and distal extent of intussusception.

Operative findings in antenatal abdominal masses of unknown etiology in females.

BACKGROUND: Perinatal findings of abdominal masses pose a diagnostic challenge to clinicians. This study presents the operative findings of patients who underwent exploration for perinatally identified abdominal masses of unknown etiology. METHODS: Retrospective review of all patients with abdominal masses of unknown etiology identified in the antenatal period was conducted from January 1, 2000 to July 1, 2010. Patient demographics were collected. Preoperative radiographic studies, operative findings, and pathologic evaluation were reviewed. RESULTS: There were 17 patients identified within the study period. The median age was 30 d at the time of operation (range 0-287 d). The median height was 51 cm (range 45-77 cm), and the median weight was 4.0 kg (range 2.6-10.4 kg). All patients were asymptomatic. After birth, ultrasound identified abdominal masses in 14 patients, and computed tomography scan was used in four patients where one patient had both an ultrasound and a computed tomography scan. Mass resection was performed using laparoscopy in 15 patients, whereas two patients underwent open resection. At the time of surgery, 11 patients were diagnosed with ovarian cysts, four patients with ovarian torsion with an associated cyst, and two patients with an enteric duplication cyst. On final pathology, eight patients had benign ovarian cysts, seven patients had hemorrhagic ovarian necrosis, and two patients had duplication cysts. CONCLUSION: Females with antenatally identified abdominal masses of unknown etiology appear to be benign in nature. In this series, a benign ovarian cyst is the most common diagnosis, and these lesions can be approached laparoscopically.

Interval appendectomy after perforated appendicitis: what are the operative risks and luminal patency rates?

BACKGROUND: The need for interval appendectomy after nonoperative management of a perforated appendicitis is being questioned owing to recent studies that estimated recurrence rates as low as 5% because of obliteration of the appendiceal lumen. We review our experience with interval appendectomy in this subset of patients to determine the postoperative outcomes and luminal patency rates. METHODS: A retrospective review was conducted of all children treated nonoperatively for a perforated appendicitis followed by elective interval appendectomy during the past 10 years. The data collected included initial hospitalization, convalescence period, perioperative course, and luminal patency rates. RESULTS: A total of 128 patients were identified, of whom 55% were male. Their mean ± SD age was 9.1 ± 4.2 years. The mean interval from the initial presentation to appendectomy was 65.9 ± 20.3 d. All but 2 of the patients underwent laparoscopic appendectomy with 3 conversions to open surgery. The mean operative time was 43.6 ± 19.2 min. The complication rate was 9%, including 1 postoperative abscess, 1 reoperation for bleeding, and 1 readmission for Clostridium difficile infection. Six patients had a superficial wound infection, and 2 patients underwent outpatient procedures for suture granuloma. No risk factors for complications were identified. Of the specimens, 16% had obliterated lumens. CONCLUSIONS: Major postoperative morbidity for interval appendectomy after a perforated appendicitis is low and should not be a deterrent in offering interval appendectomy to this subset of patients.

Experience with a simple technique for pectus bar removal.

BACKGROUND: There have been numerous reports of techniques used for pectus bar removal after correction of pectus excavatum. We use 2 operating tables positioned perpendicular to each other in a T-shaped configuration with the patients thorax circumferentially exposed so the bar is removed in 1 motion without bending the bar. In this study, we report the results of this procedure. METHODS: A retrospective chart review of patients undergoing bar removal after repair of pectus excavatum at our institution from August 2000 to March 2010 was performed. RESULTS: There were 230 patients with a mean age of 16.7 years (range, 7.8-25.3 years) at bar removal. Mean operative time for bar removal was 28.6 minutes, and average estimated blood loss (EBL) was 9.5 mL (range, 5-400 mL). One patient demonstrated significant hemorrhage from the bar tract after bar removal, which was controlled with circumferential compression wrap. Calcification was noted in 11 patients, and chondroma, in 8 patients. Wound infection after bar removal occurred in 3% of patients. No patient required the bar to be bent into a straight configuration for removal. CONCLUSIONS: Removal of pectus bars using this 2-table T-configuration technique is safe, is time efficient, and obviates the need for bending the bar.