Pediatric endoscopic pilonidal sinus treatment (PEPSiT): report of a multicentric national study on 294 patients.

This study aimed to report a multicentric national experience about the outcomes of pediatric endoscopic pilonidal sinus treatment (PEPSiT). The medical records of all pediatric patients, aged up to 18 years, who underwent PEPSiT in the period 2019-2021, were retrospectively reviewed. Patients' demographics, operative details, and post-operative outcomes were assessed. A total of 294 patients (182 boys), with median age of 14 years (range 10-18), receiving PEPSiT in the study period, were enrolled. Pilonidal sinus disease (PSD) was primary in 258 (87.8%) and recurrent in 36 (12.2%). The median operative time was 36 min (range 11-120). The median VAS pain score was 0.86 (range 0-3) and the median duration of analgesic use was 27 h (range 12-60). The overall success rate was 95.2% (280/294) and the median time to full healing was 23.4 days (range 19-50). Six/294 (2.0%) patients developed Clavien 2 post-operative complications. The recurrence rate was 4.8% (14/294) and all recurrences were re-operated using PEPSiT. Redo-surgery for wound debridement was performed in one (0.3%) patient with late healing. On multivariate analysis, hirsutism and typology of sinus (pits ≥ 2, paramedian and more proximal to the anus) were predictors of PSD recurrence (p = 0.001). To date, this is the largest series of PEPSiT published in the pediatric population. The outcomes reported after a 3 years experience confirm that PEPSiT is a safe, effective, and real minimally invasive procedure to treat adolescents with PSD. It provides patients quick and painless recovery, satisfactory success, and high quality of life.

Pediatric endoscopic pilonidal sinus treatment (PEPSiT): what we learned after a 3-year experience in the pediatric population.

This paper aimed to report a multi-institutional 3-year experience with pediatric endoscopic pilonidal sinus treatment (PEPSiT) and describe tips and tricks of the technique. We retrospectively reviewed all patients < 18 years, with primary or recurrent pilonidal sinus disease (PSD), undergoing PEPSiT in the period 2017-2020. All patients received pre-operative laser therapy, PEPSiT and post-operative dressing and laser therapy. Success rate, healing rate/time, post-operative management, short- and long-term outcome and patient satisfaction were assessed. A total of 152 patients (98 boys) were included. Median patient's age was 17.1 years. Fifteen/152 patients (9.8%) presented a recurrent PSD. All patients resumed full daily activities 1 day after surgery. The post-operative course was painless in 100% of patients (median VAS pain score < 2/10). Patient satisfaction was excellent (median score 4.8). The median follow-up was 12.8 months (range 1-36). Complete healing in 8 weeks was achieved in 145/152 (95.4%) and the median healing time was 24.6 days (range 16-31). We reported post-operatively immediate Clavien grade 2 complications (3 oedema, 2 burns) in 5/152 (3.3%) and delayed Clavien grade 2 complications (3 granulomas, 8 wound infections) in 11/152 (7.2%). Disease recurrence occurred in 7/152 (4.6%), who were re-operated using PEPSiT. PEPSiT should be considered the standard of care for surgical treatment of PSD in children and teenagers. PEPSiT is technically easy, with short and painless post-operative course and low recurrence rate (4.6%). Standardized treatment protocol, correct patient enrollment and information, and intensive follow-up are key points for the success of the procedure.

Pediatric Endoscopic Pilonidal Sinus Treatment (PEPSiT) in Children With Pilonidal Sinus Disease: Tips and Tricks and New Structurated Protocol.

Background: The advent of pediatric endoscopic pilonidal sinus treatment (PEPSiT) has dramatically changed the surgical management of pilonidal sinus disease (PSD) in children and adolescents. This study aimed to report the outcome of our new structurated protocol, including PEPSiT, laser epilation, and oxygen-enriched oil-based gel dressing, for treatment of PSD in pediatric patients and describe tips and tricks of the technique. Methods: We retrospectively reviewed the data of 127 pediatric patients, who underwent PEPSiT for PSD in our institutions over a 36-month period. All patients received laser epilation (LE) before and after surgery. Post-operative dressing was performed using silver sulfadiazine spray and in the last 18 months oxygen-enriched oil-based gel. We divided the patients in two groups according to the protocol adopted: G1 (laser + oxygen-enriched oil-based gel dressing) included 72 patients and G2 (laser + silver sulfadiazine spray dressing) included 55 patients. The two groups were compared regarding success rate, recurrence, wound infection rate, wound healing time, post-operative outcome, time to full daily activities and patient satisfaction. Results: No difference emerged between the two groups regarding the average operative time, the average post-operative pain score, the average analgesic requirement, the average hospitalization and the average time to full daily activities (p = 0.33). No intra- or post-operative complications including wound infection occurred in both groups. The patients required an average number of 7 LE sessions (range 4-10) to achieve complete hair removal. The overall success rate was significantly higher in G1 (n = 71, 98.6%) compared with G2 (n = 50, 90.9%) [p = 0.001]. The recurrence rate was also significantly lower in G1 (n = 1, 1.4%) compared with G2 (n = 5, 9%) [p = 0.001]. Furthermore, G1 reported a faster wound healing (average 21 days) compared with G2 (average 29 days) [p = 0.001] and a higher patient satisfaction score (average 4.9) compared with G2 (average 4.2) [p = 0.001]. Conclusions: Based upon our experience, PEPSiT may be considered the standard of care for surgical treatment of PSD in children and adolescents. Our new structurated protocol consisting of pre-operative LE, PEPSiT, and post-operative wound management with oxygen-enriched oil-based gel dressing and LE, allowed to achieve an excellent outcome, with a success rate > 98%.

Skin-Sparing Débridement for Necrotizing Fasciitis in Children.

BACKGROUND: Necrotizing fasciitis is a serious soft-tissue infection associated with sepsis and tissue destruction. Surgical management usually requires extensive débridement of necrotic fascia and overlying skin, with significant aesthetic and functional consequences. The authors review the outcome of all recent cases of necrotizing fasciitis treated with skin-sparing débridement at their institution. METHODS: The authors conducted a retrospective review of all of their cases of necrotizing fasciitis treated with skin-sparing débridement. Medical records were evaluated with a standard form gathering relevant demographic and clinical data. All cases were confirmed as necrotizing fasciitis histologically. RESULTS: Ten patients were admitted with a diagnosis of necrotizing fasciitis. The median age of the patients was 4.9 years (range, 1.7 to 15.1 years). The majority of initial lesions were caused by chickenpox, mostly on the trunk. Interval from admission to surgery was 6 hours (range, 1 to 27.5 hours), with a median hospital stay of 11 days (range, 5 to 43 days). Median fasciectomy was 2.5 percent (range, 1 to 15 percent) of total body surface area, with a median skin excision of 0.25 percent of total body surface area (range, 0.1 to 3 percent). All patients received intravenous amoxicillin/clavulanic acid plus clindamycin. Delayed direct closure was possible for all patients. Median follow-up was 17 months (range, 3 to 79 months). There was no death in this series. CONCLUSION: This surgical management restricts skin excision to the area of definite skin necrosis, limiting skin excision to one-tenth of excised fascia, with long-term favorable cosmetic and functional results. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.

Mesenchymal hamartoma or embryonal sarcoma of the liver in childhood: a difficult diagnosis before complete surgical excision.

BACKGROUND: Clinical experience shows that the primary diagnosis of mesenchymal hamartoma (MHL) and embryonal sarcoma of the liver (ESL) recurrently is mistaken, leading to inadequate managements. We evaluated the accuracy of the primary diagnosis of those liver tumors, compared with the final histological diagnosis. METHODS: Records of 25 children (0-16 years, treated 01/1989-01/2013) with final diagnosis of MHL or ESL were analyzed. RESULTS: Final diagnosis was MHL in 18/25 children (10 solid-cystic, 2 cystic, 6 solid) and ESL in 7/25 (4 solid-cystic, 1 cystic, 2 solid). Only 3/7 ESL patients and 15/18 MHL patients fell into the "typical" age group. In 13/25 children primary diagnosis was based on imaging only. Overall, primary diagnosis was concordant with the final diagnosis in 17/25 patients. Of 99/25 biopsied cases, 4/9 biopsy results exposed the wrong final diagnosis; of cystic-solid masses 4/14 were mistaken, of cystic masses 1/3, of solid masses 3/8. CONCLUSION: Preoperative diagnosis of MHL and ESL is challenging because of atypical clinical presentation, misleading "typical" radiological findings, and difficult interpretation of biopsies. If feasible, complete surgical resection of, in particular, solid-cystic liver masses in the pediatric age group must be aimed for, to get a definitive, final diagnosis, followed by an adequate treatment strategy.

Adenovirus-induced obstructive uropathy with acute renal failure in an immunodeficient child.

Viral infections represent severe complications in immunodeficient patients, associated with significant morbidity and mortality. We report a case of a bone marrow-transplanted adolescent with hemorrhagic cystitis 4 weeks after transplant, associated with renal failure because of obstructive pyelonephritis. Diagnostic workup finally revealed adenovirus infection. A double-J stent was inserted with spontaneous favorable evolution thereafter. Adenovirus infection in an immunocompromised patient can cause hemorrhagic cystitis without specific symptoms and might evolve toward obstructive pyelonephritis because of tubular necrosis. Diagnosis is made by urine culture and/or blood polymerase chain reaction. In case of fatal dissemination, diagnosis might only be revealed on autopsy.

Prenatal diagnosis of congenital mesoblastic nephroma.

A case of prenatal diagnosis of congenital mesoblastic nephroma by magnetic resonance is described.

An unusual abdominal cystic mass.

We report a case of a multicystic abdominal mass in a 12 year old girl.