Hanna Alemayehu

Safety of a new protocol decreasing antibiotic utilization after laparoscopic appendectomy for perforated appendicitis in children: A prospective observational study

INTRODUCTION In a previous randomized trial, we found children with perforated appendicitis could be safely discharged prior to completion of a 5 day intravenous antibiotics course. To progress the protocol further, patients who met discharge criteria early were discharged without oral antibiotics if leukocyte counts were normal. METHODS Children undergoing laparoscopic appendectomy for perforated appendicitis were prospectively observed after institution of a new antibiotic regimen consisting of daily intravenous dosing ceftriaxone/metronidazole while an inpatient. Patients discharged prior to 5 days were discharged home without oral amoxicillin-clavulanate if no leukocytosis at discharge. Outcomes were compared to the previous protocol of daily intravenous ceftriaxone/metronidazole with completion of a 7-day antibiotic course with amoxicillin-clavulanate of all patients discharged prior to 5 days. RESULTS 540 patients (270 new protocol, 270 old protocol) were identified. There was no significant difference in patient demographics, admission leukocyte count, time to regular diet, or length of stay. Postoperative abscess occurred in 21.8% in the new protocol compared to 19.3% of the previous (P=0.5). There was a significant decrease in the number of patients discharged home on oral antibiotic therapy (P<0.001). CONCLUSIONS Patients meeting discharge criteria with normal leukocyte count prior to completion of 5 days IV antibiotic therapy can be safely discharged home without oral antibiotics after laparoscopic appendectomy for perforated appendicitis.

Incidence and outcomes of unexpected pathology findings after appendectomy

PURPOSE Pathologic evaluation of the appendix after appendectomy is routine and can identify unexpected findings. We evaluated our experience in children undergoing appendectomy to review the clinical course of patients with unexpected appendiceal pathology. METHODS After IRB approval, a retrospective review was conducted on patients who underwent appendectomy from January 1, 1995 to March 1, 2011. Patient demographics, diagnosis, pathological findings, disease outcomes, and treatment were collected only on patients with abnormal pathology. RESULTS 3602 patients underwent appendectomy. 113 patients had normal appendices, and 86 patients had unexpected findings, including carcinoid tumor (n=9), pinworm (n=34), granuloma (n=14), eosinophilic infiltrates (n=18), and other (n=11). All cases of carcinoid tumor were completely resected, with no recurrence or need for reoperation. Of the 34 patients with pinworm infestation, 41.2% underwent antimicrobial therapy, and none had post-operative symptoms. One patient (7%) with an appendiceal granuloma developed Crohns disease. Three patients (16.7%) with eosinophilia developed symptomatic intestinal eosinophilia. CONCLUSIONS Pediatric appendiceal carcinoid is an incidental finding; in this series, none required further intervention. Appendiceal granulomas are not commonly associated with developing Crohns disease in the short term. Routine antibiotics for the treatment of pinworms are adequate. Patients with appendiceal eosinophilia may develop symptomatic intestinal eosinophilia.

Minimal vs. maximal esophageal dissection and mobilization during laparoscopic fundoplication: long-term follow-up from a prospective, randomized trial.

PURPOSE We have previously conducted a prospective randomized trial (PRT) comparing circumferential phrenoesophageal dissection and esophageal mobilization (MAX) to minimal dissection/mobilization (MIN). The MIN group had a decreased incidence of postoperative wrap herniation and need for reoperation. This study provides long-term follow-up of the patients from our center who participated in the PRT. METHODS Parents of patients in the PRT were queried regarding symptoms, medication use, postoperative complications, and additional procedures. Medical records were reviewed. Students t-test was used for continuous variables. Fishers exact and chi-square with Yates correction were used where appropriate. RESULTS Of patients from our center, 75.4% MAX and 72.5% MIN patients were contacted. Median time to follow-up was 6.5 years. A rise in the incidence of herniation was noted in both groups (22.7% to 36.5% MAX vs 2.8% to 12.2% MIN). Time to diagnosis of hernia was significantly longer in the MIN group (14.7±9.5 months MAX vs 30.2±23.6 months MIN, P=0.04). There was no significant difference between MIN and MAX group in reflux symptoms or medication use. CONCLUSION Long-term follow-up demonstrates an increase in incidence of herniation in both groups. Previously demonstrated higher risk of wrap herniation with maximal esophageal dissection during laparoscopic fundoplication remains supporting original findings.

Granular cell tumors and congenital granular cell epulis in children: Similar entities

BACKGROUND/PURPOSE Granular cell tumor (GCT) is an unusual lesion thought to originate from Schwann cells. Congenital granular cell epulis (CGCE) is a rare fibroma-like lesion arising from the alveolar ridge in newborns. These entities have been described as distinct entities. METHODS A retrospective review was performed of children with a histopathologic diagnosis of GCT or CGCE from 1991-2014. Data were recorded and analyzed. All values reported as the mean±standard deviation. RESULTS GCT or CGCE was identified in 41 patients with a mean age of 7.8±6.1years. Thirty-one patients had GCT, and 10 had CGCE. All patients underwent excisional biopsy, except 1 who underwent incisional biopsy only. Fifteen patients had positive margins after excision (12 GCT and 3 CGCE). Only 1 had a local recurrence, and this same patient had multifocal GCT. Only 1 patient had an invasive lesion without recurrence after wide local excision. All patients survived, with a median follow-up of 42.5months (0.2-204.2months). CONCLUSION In children, both GCT and CGCE exhibit benign behavior, and complete excision does not appear to be mandatory, as recurrence or invasive disease is rare. When invasive features are present, wide local excision should be undertaken.

Management of electrical and chemical burns in children

BACKGROUND Pediatric electrical and chemical burns are rare injuries, and the care of these patients varies significantly. We reviewed our experience in management of electrical and chemical burns to analyze the clinical course, management, and outcomes. METHODS A retrospective review was conducted on children with chemical and electrical burns presenting to two large regional pediatric burn centers over a 10-y period (2002-2012). Clinical data including patient demographics, nature of burns, management, and outcomes were collected and analyzed. RESULTS There were 50 cases, 25 chemical and electrical burns each. Overall, the mean±standard deviation age was 6.2±5.6 y, and the mean total body surface area burn was 4.3±3.2%. Chemical burns were larger, had less depth, and shorter length of stay, whereas electrical burns were smaller, deeper, and had a longer length of stay. Two chemical burns and six electrical burns required grafting. Twelve percent of electrical burns required rehabilitation, and 20% required compression garments for hypertrophic scars. Six percent required late surgeries. CONCLUSIONS Pediatric electric and chemical burns are rare and require specialized care. Graft rates are not high but are mostly noted in electrical burns.

Impact of Epidural Failures on the Results of a Prospective, Randomized Trial

INTRODUCTION We conducted a prospective randomized trial to evaluate the merits of two established postoperative pain management strategies: thoracic epidural (EPI) versus patient-controlled analgesia (PCA) with intravenous narcotics after minimally invasive repair of pectus excavatum. Pain scores favored the EPI group for the first two postoperative days only. Critics of the trial suggest that if the epidural failure rate was not so high, results may have favored the EPI group. Therefore, we performed a subset analysis of the EPI group to evaluate the impact of these failures. METHODS Patients for whom epidural catheter could not be placed or whose catheters were removed early owing to dysfunction were compared with those with well-functioning catheters. Those with well-functioning catheters were also compared with the PCA group. A two-tailed independent Student t-test and a two-tailed Fisher exact test were used where appropriate. RESULTS Of 55 patients in the EPI group, 12 patients (21.8%) had failed placement or required early removal. Comparing those with failed placements with the rest of the group, there was no difference in daily visual analogue scale pain scores or measures of hospital course. Likewise, comparing those with well-functioning catheters only to those in the PCA group, the results of the trial are replicated in terms of pain scores, hospital course, and length of stay. CONCLUSION In patients with failed epidural therapy, there is no significant difference in postoperative hospital course. Comparing those with well-functioning catheters to those in the PCA group, trial results are replicated-that is, no significant difference in length of stay, time to regular diet, or time to transition to oral medications. Therefore, failure rate in the EPI group did not influence the results of the trial.

Lower radiation exposure from body CT imaging for trauma at a dedicated pediatric hospital

PURPOSE We compare radiation exposure from body CT imaging for blunt trauma performed at outside hospitals (OH) versus our childrens hospital (CH). METHODS We performed a retrospective chart review of all children transferred to our facility for management of trauma after undergoing a body CT scan at an OH from June 2011 to August 2013. Radiation from OH images was compared to our CH by matching to age, gender, and nearest date. Radiation measures included dose length product (DLP), computed tomography dose index (CTDI), and size-specific dose estimate (SSDE). RESULTS Fifty-one children were transferred from 39 OH. Abdomen/pelvis and chest/abdomen/pelvis imaging was performed in 30 and 21 children, respectively. Demographics are shown in Table 1. Results are illustrated in Tables 2 and 3. Contrast was utilized in 45 (1 oral, 41 IV, 3 both) and 51 (49 IV, 2 both). CT scans were performed at OH and CH, respectively (P=0.03). CONCLUSIONS Children receive significantly less radiation exposure with body CT imaging for blunt trauma when performed at our dedicated CH. CT scans were significantly more likely to be ordered with appropriate contrast at our CH.

The role of 2-octyl cyanoacrylate in prevention of penile adhesions after circumcision: A prospective, randomized trial

PURPOSE Penile adhesions are the most common complication after circumcision, although strategies to decrease them are poorly studied. We conducted a prospective, randomized trial comparing the use of 2-octyl cyanoacrylate (glue) skin adhesive to hydrophobic ointment after circumcision. METHODS Patients <7years old undergoing circumcision were randomized to glue around the sutures and corona of the penis or antibiotic ointment. The primary outcome variable was postoperative penile adhesions. Utilizing a power of 0.8 and an alpha of 0.05, 168 patients were calculated for each arm. Because of high attrition, we planned to include up to 500 patients. Presence/absence of adhesions was evaluated 2-4weeks postop. Parents subjectively scored happiness, comfort, distress, and concern on a Likert scale 1-5. RESULTS From 11/2012 through 7/2016, 409 patients were enrolled. Adhesion data were available on 243 patients. There was no difference between glue (16.8%) and those with antibiotic ointment (15.2%) (p=0.88) or in parental satisfaction across all areas measured. 165 patients were lost to follow-up, evenly distributed between the two groups (38% vs. 42%, p=0.49). CONCLUSION The placement of 2-octyl cyanoacrylate skin adhesive does not decrease the rate of postoperative penile adhesions after circumcision. Parent satisfaction outcomes are similar. TYPE OF STUDY Treatment study. LEVEL OF EVIDENCE Level II.

Outcomes of Ostomy Location in Children: Placement of the Ostomy at the Umbilicus

PURPOSE Neonatal exploratory laparotomies are often performed with a transumbilical incision in our institution, so umbilical ostomy placement has become more common. The purpose of our study is to evaluate the outcomes of neonates with ostomy placement at the umbilicus in comparison to more traditional stoma locations. MATERIAL AND METHODS Retrospective study of neonates that underwent an exploratory laparotomy with ostomy creation between January 2010 and September 2015. Demographics, presentation, feedings, ostomy position, postoperative complications, and outcomes were collected. Comparative analysis was performed in STATA with P-value <.05 determined as significant. Results reported as means ± standard deviation and medians with interquartile ranges. RESULTS Fifty-four children were included, 37% (n = 20) had stomas at the umbilicus. Most common other stoma location was the right lower quadrant (63%, n = 34). Necrotizing enterocolitis (NEC) was the most common indication for surgery in both groups. Days to stoma output were similar between the two groups, [3 (1, 6) versus 2 (1, 5), P = .96]. Days to initiation of feeds were delayed in the umbilical ostomy group [15 (9.5, 23.5) versus 6 (4, 10), P = .02]. Comparing only NEC patients, initiation of feeds was similar [22 (14, 56) versus 15.5 (8, 43), P = .73]. Umbilical ostomies had an increase in prolapse/peristomal hernias (7 versus 3, P = .01), but no patients required operative revision. CONCLUSION Umbilical ostomies had similar time to stoma function compared to other sites, but a delay in initiation of oral feeds likely secondary to a higher percentage of patients with NEC.

Abdominal Exploration in Neonates Using Transumbilical Exposure Compared with Transverse Laparotomies

INTRODUCTION The vertical transumbilical incision (TU) technique during neonatal abdominal exploration involves dissection and ligation of umbilical vessels, which allow access to all quadrants of the abdomen and complete bowel evisceration with minimal violation to the anterior abdominal wall. We compared patient characteristics and outcomes for neonates undergoing TU with standard transverse exploration. MATERIALS AND METHODS A single-center retrospective review of neonates who underwent abdominal exploration between January 2010 and September 2015 was conducted after obtaining Institutional Review Board approval. Data included patient demographics, indication for operative intervention, operative details, complications, including incisional hernias, and long-term outcomes. RESULTS There were 88 neonates under 4 months of age who underwent abdominal exploration, with a median age of 5.5 ± 17 days and a median gestational age of 32.8 ± 16 weeks. Exploration was emergent in 38 patients (43%) and 49 (56%) required ostomy formation. A transverse incision (TV) was used in 30 patients and a TU in 58 patients. Both groups had similar postoperative complication rates; 27 (47%) in the TU group and 11 (36%) in the TV group, P = .51. Median length of follow-up in the TU group was 5.1 ± 18 months and 6.2 ± 16 months in the TV group, P = .48. The TU group had 4 incisional/umbilical hernias (7%), none have required repair. CONCLUSION TUs for abdominal explorations in neonates have similar outcomes as the standard TV while preserving the integrity of the anterior abdominal wall.