Ruptured Appendicitis Leading to Development of a Tubo-Ovarian Abscess in a Non-sexually Active Adolescent Patient.

Tubo-ovarian abscesses (TOA) are commonly associated with pelvic inflammatory disease (PID) caused by sexually transmitted infections (STI). There have been several reports of adolescent non-sexually active female patients diagnosed with TOAs. Symptoms of TOAs often mimic appendicitis and have often been diagnosed as such. We present a case of a 12-year-old non-sexually active adolescent who was initially diagnosed with ruptured appendicitis and found to have a TOA engulfing the appendix.

Conservative management of urachal anomalies.

PURPOSE: The purpose of this study was to evaluate trends in management of urachal anomalies at our institution and the safety of nonoperative care. METHODS: Based on our experience managing urachal remnants from 2000 to 2010 (reported in 2012), we adopted a more conservative approach, including preoperative antibiotic use, refraining from using voiding cystourethrograms (VCUG), postponing surgery until at least six months of age, and considering nonoperative management. A retrospective analysis of urachal anomaly cases was conducted (2011-2016) to assess trends in practice. Charts indicating anomalies of the urachus were pulled and trends in management (nonoperative versus surgical treatment), VCUG and antibiotic use, and outcomes were reviewed. RESULTS: Data from 2000-2010 and 2013-2016 were compared. Our findings indicate care has shifted towards nonoperative management. A smaller proportion of patients from 2013-2016 was treated surgically compared to 2000-2010. Patients receiving nonoperative treatment exhibited lower rates of complication relative to surgically managed cases. VCUGs were eliminated as a diagnostic tool for evaluating urachal anomalies. Prophylactic preoperative antibiotic use was standardized. No patients with a known urachal remnant presented later with an abscess or sepsis. CONCLUSIONS: We find that a shift towards nonoperative treatment of urachal anomalies did not adversely affect overall outcomes. We recommend observing minimally symptomatic patients, especially those under six months old. STUDY TYPE: Performance improvement. LEVEL OF EVIDENCE: Level IV.

Update on Wilms tumor.

This article reviews of the current evidence-based treatment standards for children with Wilms tumor. In this article, a summary of recently completed clinical trials by the Children's Oncology Group is provided, the current diagnostic evaluation and surgical standards are discussed, and the surgical impact on current risk stratification for patients with Wilms tumor is highlighted. LEVEL OF EVIDENCE: This is a review article of previously published and referenced LEVEL 1 studies, but also includes expert opinion LEVEL V, represented by the American Pediatric Surgical Association Cancer Committee.

Neurodevelopmental outcomes of tracheoesophageal fistulas.

PURPOSE: The purpose of this study was to perform a retrospective review of tracheoesophageal fistula (TEF) patients who followed up in a state-sponsored program to assess neurodevelopmental outcomes. METHODS: Records were reviewed retrospectively of children who underwent TEF repair between August 2001 and June 2014. Children discharged from the neonatal intensive care unit were referred to the state-sponsored Developmental Tracking Infant Progress Statewide (TIPS) program. We reviewed TIPS assessments performed before age 24months and noted referral for early school intervention services. Poor outcomes were defined as scores of "failure" on the screening assessment or referral for enrollment in early intervention services by 24months. Children with TEF were compared with case-matched nonsyndromic children of similar gestational age and birth weight. RESULTS: Seventy-eight children underwent TEF repair. Thirty-eight followed up with TIPS. Survival was 93.6%. Predictors of hospital survival were Waterston classification (p=0.001), birth weight (p=0.027), and ventilator days (p=0.013). LOS was the only significant predictor of referral for early intervention services (p=0.0092) in multivariate analysis. There was a borderline significant difference in referral rate between children with TEF and controls. 52.6% of TEF patients were referred, while 34.2% of controls were referred (p=0.071). CONCLUSION: More than half of TEF patients experience neurodevelopmental delays requiring referral for early intervention (53%).

Trends in surgical management of urachal anomalies.

PURPOSE: We have noted an increasing frequency of diagnosed urachal anomalies. The purpose of this study is to evaluate this increase, as well as the outcomes of management at our institution over 10 years. METHODS: A retrospective analysis of urachal anomalies at our institution was performed. Inclusion criteria were Anomalies of Urachus (ICD 753.7) or Urinary Anomaly NOS (ICD 753.9) between January 2000 and December 2010. Exclusion criteria were having an asymptomatic urachal remnant incidentally excised. RESULTS: Eighty-five patients (49 male, 36 female) presented between 0 and 17 years of age (mean 1.5 years). Diagnoses increased from 0 in 2000 to 21 in 2010. Zero was surgically managed in 2000 while 21 were managed in 2010 (p=0.0145). Fifteen patients (17.6%) were observed with 13 (13/15, or 15.3%) resolving without complication while 2 were operated on. Average time to resolution (clinical or radiologic) was 4.9 months (Range: 0.4-12.6). A total of seventy-two patients (84.7%) underwent excision. Thirty-nine (54%) surgical cases were outpatient while 33 (46%) were admitted. Thirteen (18%) had post-operative complications. Ten (77%) of the complications were wound infections. Patients under 6 months of age accounted for 60% (6 of 10) of all wound infections and 52% (17 of 33) of hospitalizations. CONCLUSIONS: Our experience and review of the literature suggest a high complication rate with surgical management in young patients, mostly from infections and support non-operative management of all non-infected urachal remnants in children.

Identifying strategies to decrease infectious complications of gastroschisis repair.

PURPOSE: We describe the infectious complications of gastroschisis in order to identify modifiable factors to decrease these complications. METHODS: Data from 155 gastroschisis patients (2001-2013) were reviewed. Complicated gastroschisis (intestinal atresia, necrotic bowel, or perforation) were excluded, leaving 129 patients for review. Patient demographics, surgical details, postoperative infections and complications, and length of stay were reviewed. We used CDC definitions of infectious complications. RESULTS: The average gestational age of patients was 35.97weeks. Silos were used in 46% of patients (n=59) for an average of 7.4days. Thirty-one patients (24%) acquired an infection within the first 60days of life. Patients who developed an infection were born earlier in gestation (P=0.02), weighed less (P=0.01), required silos more often (P=0.01), and received a sutured repair (P=0.04). Length of stay of patients with an infection was longer than in patients without infection (P=0.01). CONCLUSIONS: Infectious complications following gastroschisis repair are common. Subsets of gastroschisis patients at increased risk of infection include patients with silos, preterm delivery, low birth weight, and sutured repair. Based on our findings, our recommendation would be to carry gastroschisis patients to term and advocate against the routine use of silos, reserving their use for those cases when primary closure is not possible.

Chronic cervical esophageal foreign bodies in children: surgical approach after unsuccessful endoscopic management.

OBJECTIVES: We reviewed the surgical management of chronic cervical esophageal foreign bodies (CCEFBs) in a pediatric population after failed endoscopic retrieval. METHODS: A descriptive analysis via a retrospective chart review of patients with CCEFBs who failed initial endoscopic management was performed between 2008 and 2013. Details were recorded regarding presenting symptoms, time from symptom onset to diagnosis of the CCEFB, surgical approach, and complications. RESULTS: Three patients with CCEFBs unsuccessfully managed with endoscopy were identified. The range of ages at diagnosis was 14 months to 4.5 years. The foreign bodies (FBs) were present for at least 1 month before diagnosis (range, 1 to 10 months). Respiratory symptoms were predominant in all cases. Neck exploration with removal of the FB was performed in each case. Complications included esophageal stricture necessitating serial dilations (patient 1), left true vocal fold paresis that resolved spontaneously (patient 3), and tracheoesophageal fistula with successful endoscopic closure (patient 3). No long-term sequelae were experienced. CONCLUSIONS: A high index of suspicion is required to recognize CCEFBs in children with respiratory distress. Although endoscopic management remains the first-line treatment, it may fail or may not be possible because of transmural FB migration. In this setting, neck exploration with FB removal is a safe and effective alternative.

Laparoscopic transperitoneal repair of pediatric diaphragm eventration using an endostapler device.

BACKGROUND: Minimally invasive repairs of pediatric diaphragm eventration have been well described via a thoracoscopic approach, oftentimes requiring single-lung ventilation and tube thoracostomy, with the disadvantage of not being able to clearly visualize what lies beneath the diaphragm. We describe a novel pediatric diaphragm eventration repair using a laparoscopic transperitoneal approach and an endostapler device. We also describe our initial experience with this technique. PATIENTS AND METHODS: Four pediatric diaphragmatic eventration patients underwent laparoscopic transperitoneal repair using an endostapler device. Repairs were performed in both male and female patients with right-sided eventrations. We approach the repair in a transperitoneal fashion using inverting sutures at the apex of the diaphragm to create tension toward the pelvis. Subsequently, an endostapler is used to remove the redundant portion of diaphragm, leaving a repaired, taut diaphragm. RESULTS: The median age at operation was 10.5 months. The median operative time was 70 minutes. There was no mortality, surgical complications, or recurrence at a median follow-up of 17 months. CONCLUSIONS: This laparoscopic approach allows for clear visualization of the intraabdominal organs and, at least in our early experience, a very simple, straightforward operation. Additionally, with the use of the endostapler, the redundant, often weakened diaphragm is removed, leaving the native, healthy diaphragm behind, resulting in a reliable and reproducible repair. This repair should be considered as a feasible alternative approach to the more traditional open and thoracoscopic repairs.

Gastric outlet obstruction due to adenocarcinoma in a patient with Ataxia-Telangiectasia syndrome: a case report and review of the literature.

BACKGROUND: Ataxia-Telangiectasia syndrome is characterized by progressive cerebellar dysfunction, conjuctival and cutaneous telangiectasias, severe immune deficiencies, premature aging and predisposition to cancer. Clinical and radiographic evaluation for malignancy in ataxia-telangiectasia patients is usually atypical, leading to delays in diagnosis. CASE PRESENTATION: We report the case of a 20 year old ataxia-telangiectasia patient with gastric adenocarcinoma that presented as complete gastric outlet obstruction. CONCLUSION: A literature search of adenocarcinoma associated with ataxia-telangiectasia revealed 6 cases. All patients presented with non-specific gastrointestinal complaints suggestive of ulcer disease. Although there was no correlation between immunoglobulin levels and development of gastric adenocarcinoma, the presence of chronic gastritis and intestinal metaplasia seem to lead to the development of gastric adenocarcinoma. One should consider adenocarcinoma in any patient with ataxia-telangiectasia who presents with non-specific gastrointestinal complaints, since this can lead to earlier diagnosis.

Image guidance during abdominal exploration for recurrent colorectal cancer.

BACKGROUND: Real-time intraoperative image guidance has been successfully applied to malignancies of the head, neck and central nervous system. Few attempts have been made to apply this technology to gastrointestinal cancers. Our purpose was to determine if a computer-assisted navigation system could be accurately used at the time of abdominal exploration. METHODS: Fourteen patients with resectable recurrent colorectal cancer underwent computer tomography (CT) imaging of the abdomen and pelvis. The CT images were uploaded to a StealthStation (Medtronic, Inc., Minneapolis, MN), a device that tracks the motion of a handheld probe in the operating field and displays its position, in real time, on the uploaded images. Various anatomic points were utilized to match, or register, the patient to the images in the navigation system. After four or more anatomic points were registered, the accuracy of the registration process was computed by the navigation system and reported as the global error. RESULTS: A total of 23 different anatomic structures were used for registration. The median number of points used for registration per patient was 6.5 (range 5-9). The anatomic sites most commonly used were the anterior superior iliac spines, aortic bifurcation, sacral promontory, symphysis pubis, and iliac artery bifurcation. The median global error was 10.0 mm (range 6.7 mm-27.0 mm). CONCLUSION: Computer-assisted navigation systems can be used to accurately deliver image guidance at the time of abdominal exploration. Future work will be directed at determining the value of this technology in the localization and resection of tumors.

Combination therapy with anti-CTL antigen-4 and anti-4-1BB antibodies enhances cancer immunity and reduces autoimmunity.

The majority of cancer antigens identified thus far have limited expression in normal tissues. It has been suggested that autoimmune disease is a necessary price for cancer immunity. This notion is supported by a recent clinical trial involving an anti-CTL antigen-4 (CTLA-4) antibody that showed significant clinical responses but severe autoimmune diseases in melanoma patients. To selectively modulate cancer immunity and autoimmunity, we used anti-CTLA-4 and anti-4-1BB antibodies to treat mice with a preexisting cancer, MC38. The combination of the two antibodies led to CD8 T-cell-mediated rejection of large established MC38 tumors and long-lasting immunity to the same tumor cells, although the same regimen was not effective for B16 melanoma. More importantly, whereas individual antibodies induced inflammation and autoimmune manifestations, combination therapy increased cancer immunity while reducing autoimmunity. The reduction of autoimmune effects correlates with an increased function of regulatory T cells. Our results suggest a novel approach to simultaneously enhance cancer immunity and reduce autoimmunity.

Pilot study using a humanized CC49 monoclonal antibody (HuCC49DeltaCH2) to localize recurrent colorectal carcinoma.

BACKGROUND: CC49 is a monoclonal antibody directed against a pancarcinoma antigen (TAG-72) expressed by colorectal cancers. The use of murine CC49 in radioimmunoguided surgery (RIGS) was problematic because of the human anti-mouse antibodies (HAMA) generated. This study was designed to assess the clearance, safety, and effectiveness of localization of a complimentarity determining region (CDR)-grafted humanized domain-deleted antitumor CC49 antibody (HuCC49DeltaCH2). METHODS: After thyroid blockade, 1 mg of HuCC49DeltaCH2 radiolabeled with 2 mCi of iodine-125 was administered. All patients subsequently underwent traditional exploration followed by a survey with the gamma-detecting probe. In five patients, exploration was performed 10 to 24 days after injection, when precordial counts were sufficiently low (<30 counts per 2 seconds [cp2s]). Traditionally suggestive and probe-positive tissue was biopsied or excised and examined for the presence of carcinoma, when considered appropriate by the operating surgeon. Serum was assessed for HAMA. RESULTS: Seventeen sites were identified as suggestive of carcinoma on traditional exploration and 21 by RIGS. Of these, pathologic correlation was obtained in 15. The sensitivity of RIGS was 92%, and the positive predictive value was 100%. None of the patients expressed significant HAMA. CONCLUSIONS: This initial study indicates that the HuCC49DeltaCH2 monoclonal antibody, when used with RIGS, is safe and sensitive in detecting recurrent intra-abdominal colon cancer.

Effective use of the air ambulance for pediatric trauma.

BACKGROUND: The purpose of this study was to compare outcomes of pediatric trauma patients transported by helicopter from the injury scene (IS group) to a trauma center and those transported by air after hospital stabilization (HS group). METHODS: A retrospective analysis of pediatric trauma patients (<19 years of age) transported by air ambulance and admitted to a pediatric trauma center was conducted. Outcomes compared were mortality and length of stay. Patients were subdivided into minor (Injury Severity Score [ISS] < 15) and major (ISS > 15) trauma. TRISS analysis was performed to verify the overall quality of the care. RESULTS: Eight hundred forty-two HS and 379 IS patients were included. The mean age, median ISS, and distribution of penetrating and blunt injuries did not differ significantly between the groups. The overall death rate was significantly lower for the interfacility transfer patients (HS group, 5.5%; IS group, 8.7%; p < 0.05). Mean intensive care unit (ICU) and hospital length of stay did not differ significantly. HS patients with major trauma had significantly less mortality (HS group, 15.5%; IS group, 26.7%; p < 0.05) and shorter mean ICU stays (HS group, 118.3 hours; IS group, 149.1 hours; p < 0.05) than IS major trauma patients. No differences were seen in patients with minor trauma. TRISS analysis showed improved survival for all patients compared with Major Trauma Outcome Study norms. CONCLUSION: Retrospective analysis was not able to demonstrate any benefit to direct transport from the scene to a trauma center. Hospital stabilization before transfer by air ambulance may improve survival and shorten ICU stays for patients with major trauma.

Cost-effectiveness of sentinel lymph node biopsy in thin melanomas.

BACKGROUND: Consideration of sentinel lymph node biopsy (SLNB) is recommended for thin melanomas with poor prognostic features; however, few metastases are identified. The purpose of this study was to assess the cost effectiveness of SLNB in this population. METHODS: The prospective melanoma database was reviewed to identify patients with melanomas <1.2 mm thick who had undergone SLNB. Physician and hospital charges were collected from the appropriate billing department. RESULTS: A total of 138 patients were identified over an 8-year period (1994-2002). Two patients with positive SLNs were identified (1.4%), one with a melanoma <1 mm thick. Patient charges for SLNB ranged from $10,096 to $15,223 US dollars, compared with $1000 to $1740 US dollars for wide excision as an outpatient. Using these charges, the cost to identify a single positive SLN would be between $696,600 and $1,051,100 US dollars. The cost for wide excision would be between $69,000 and $120,100 US dollars. Assuming that all patients with a positive SLN would die of melanoma, the cost per life saved would be $627,000 to $931,000 US dollars. CONCLUSIONS: The cost of performing SLNB in this population is great and only a small number will have disease identified that will alter treatment. These data call into question the appropriateness of SLNB for thin melanomas.

Patterns of recurrence after sentinel lymph node biopsy for breast cancer.

BACKGROUND: Sentinel lymph node biopsy (SLNB) is gaining acceptance as an alternative to axillary lymph node dissection. The purpose of this study was to determine the frequency and pattern of disease recurrence after SLNB. METHODS: Two-hundred twenty-two consecutive patients undergoing SLNB from April 6, 1998, to October 27, 1999, and who were >or=24 months out from their procedure were identified from a prospectively maintained database. Retrospective chart review and data analysis were performed to identify variables predictive of recurrence. RESULTS: The median patient follow-up was 32 months (range, 24-43 months). A total of 159 patients (72%) were sentinel lymph node (SLN) negative and had no further axillary treatment. Five of these patients (3.1%) developed a recurrence (one local and four distant), with no isolated regional (axillary) recurrences. Sixty-three patients (28%) were SLN positive and underwent a subsequent axillary lymph node dissection. Six of these patients (9.5%) developed a recurrence (three local, one regional, and two distant). Pathologic tumor size (P <.001), lymphovascular invasion (P =.018), and a positive SLN (P =.048) were all statistically significantly associated with disease recurrence. CONCLUSIONS: With a minimum follow-up of 24 months, patients with a negative SLN and no subsequent axillary treatment demonstrate a low frequency of disease recurrence. This supports the use of SLNB as the sole axillary staging procedure in SLN-negative patients.