Intestinal perfusion assessed by quantitative fluorescence angiography in piglets with necrotizing enterocolitis.

BACKGROUND: Reduced intestinal perfusion is thought to be a part of the pathogenesis in necrotizing enterocolitis (NEC). This study aims to evaluate the intestinal perfusion assessment in NEC-lesions by quantitative fluorescence angiography with indocyanine green (q-ICG) during laparoscopy and open surgery. METHODS: Thirty-four premature piglets were delivered by cesarean section and fed with parenteral nutrition and increasing infant formula volumes to induce NEC. During surgery, macroscopic NEC-lesions were evaluated using a validated macroscopic scoring system (1-6 for increasing NEC severity). The intestinal perfusion was assessed by q-ICG and quantified with a validated pixel intensity computer algorithm. RESULTS: Significantly higher perfusion values were found in healthy areas of the colon (score 1) compared to those with NEC scores of 4, 5, and 6 (p < 0.05). Similarly, in the small intestine, perfusion was higher in the intestine with areas scored 1 compared to scores of 3 and 4 (p < 0.05). A cut-off value was found between NEC score of 1-2 vs. 3-4 for the small intestine at 117 and for colon at 107 between NEC scores 12 vs. scores of 36 with an area less than the curve value at 0.9 (p < 0.05). CONCLUSIONS: q-ICG seems to be a feasible and valuable technique to evaluate the perfusion of tissue with NEC-lesions. We found a cut-off between intestine with scores 1-2 and intestine with NEC scores 3-6 in colon, and NEC score 3-4 in the small intestine. LEVEL OF EVIDENCE: II.

Early diagnosis and treatment for intussusception in children is mandatory.

INTRODUCTION: In some cases, surgical treatment is necessary to manage intussusception despite advances in enema reduction. The purpose of this study was to analyse treatment in two tertiary referral university centres for paediatric surgery to identify time-related factors influencing treatment of intussusception. METHODS: This was a retrospective two-centre chart review, performed for all patients under the age of 16 years who underwent treatment for intussusception during the period from 2005 to 2015. Demographic data and data on different time intervals from symptom debut to end of treatment and compliacations were retrieved from the medical record. RESULTS: A total of 158 children were included. Non-surgical reduction was used as the primary treatment modality in 48% and intussusception was successfully reduced in 32% of these cases. The non-surgical success rate was found to be significantly higher when the diagnosis was confirmed within four hours of hospitalisation (p = 0.003). A lower rate of bowel resection was observed when the diagnosis was confirmed within four hours of hospitalisation (p = 0.026) and treatment was initiated within six hours of hospitalisation (p = 0.033). CONCLUSIONS: This study found a relatively low utilisation rate for enema reduction and an overall low enema success rate. The success rate of enema was significantly higher and the intestinal resection rate lower when the diagnosis was confirmed within four hours of hospitalisation, which underpins the importance of a quick and timely diagnosis. FUNDING: none. TRIAL REGISTRATION: not relevant.

[Evaluation and treatment of patients after caustic ingestion].

This article presents recommendations regarding early management of patients after intake of corrosive chemicals, based on best evidence and clinical experience. Risk assessment built on clinical history, presentation and endoscopy is discussed as well as initial treatment, surgical appraisal and observation. Controversy still surrounds the need for endoscopy in asymptomatic patients, the use of computed tomography in assessing the severity of lesions as well as pharmacological treatment for preventing strictures.