Optimal timing for surgical reconstruction of bile duct injury: meta-analysis.

BACKGROUND: Major bile duct injury (BDI) after cholecystectomy generally requires surgical reconstruction by means of hepaticojejunostomy. However, there is controversy regarding the optimal timing of surgical reconstruction. METHODS: A systematic review was performed by searching PubMed, Embase and Cochrane databases for studies published between 1990 and 2018 reporting on the timing of hepaticojejunostomy for BDI (PROSPERO registration CRD42018106611). The main outcomes were postoperative morbidity, postoperative mortality and anastomotic stricture. When individual patient data were available, time intervals of these studies were attuned to render these comparable with other studies. Data for comparable time intervals were pooled using a random-effects model. In addition, data for all included studies were pooled using a generalized linear model. RESULTS: Some 21 studies were included, representing 2484 patients. In these studies, 15 different time intervals were used. Eight studies used the time intervals of less than 14 days (early), 14 days to 6 weeks (intermediate) and more than 6 weeks (delayed). Meta-analysis revealed a higher risk of postoperative morbidity in the intermediate interval (early versus intermediate: risk ratio (RR) 0·73, 95 per cent c.i. 0·54 to 0·98; intermediate versus delayed: RR 1·50, 1·16 to 1·93). Stricture rate was lowest in the delayed interval group (intermediate versus delayed: RR 1·53, 1·07 to 2·20). Postoperative mortality did not differ within time intervals. The additional analysis demonstrated increased odds of postoperative morbidity for reconstruction between 2 and 6 weeks, and decreased odds of anastomotic stricture for delayed reconstruction. CONCLUSION: This meta-analysis found that surgical reconstruction of BDI between 2 and 6 weeks should be avoided as this was associated with higher risk of postoperative morbidity and hepaticojejunostomy stricture.

ANTECEDENTES: La lesión mayor de la vía biliar (bile duct injury, BDI) después de la colecistectomía generalmente requiere reconstrucción quirúrgica mediante una hepaticoyeyunostomía. Sin embargo, existe controversia en relación al momento óptimo para la reconstrucción quirúrgica. MÉTODOS: Se realizó una revisión sistemática mediante la búsqueda en las bases de datos de Pubmed, Embase y Cochrane de los estudios que proporcionaban información sobre el momento de la realización de la hepaticoyeyunostomía por la BDI, publicados entre 1990-2018 (registro PROSPERO: CRD42018106611). Los resultados principales fueron la morbilidad postoperatoria, la mortalidad postoperatoria y las estenosis de la anastomosis. Cuando se disponía de datos individuales de los pacientes, los intervalos de tiempo de estos estudios se ajustaron para hacerlos comparables con otros estudios. Los datos de los intervalos de tiempo comparables se agruparon utilizando un modelo de efectos aleatorios. Además, los datos de todos los estudios incluidos se agruparon mediante un modelo lineal generalizado. RESULTADOS: Se incluyeron 21 estudios con un total de 2.229 pacientes. En estos estudios, se utilizaron 15 intervalos de tiempo diferentes. Ocho estudios utilizaron los intervalos de tiempo < 14 días (precoz), 14 días-6 semanas (intermedio) y > 6 semanas (tardío). El metaanálisis reveló un mayor riesgo de morbilidad postoperatoria en el intervalo intermedio (precoz versus intermedio: riesgo relativo, RR 0,73; i.c. del 95%: 0,54-0,98; intermedio versus tardío RR 1,50, 1,16-1,93). La tasa de estenosis fue más baja en el grupo del intervalo tardío (RR intermedio versus tardío, RR 1,50, 1,07-2,20). La mortalidad postoperatoria no difirió entre los distintos intervalos de tiempo. El análisis adicional demostró mayores probabilidades de morbilidad postoperatoria para la reconstrucción entre 2-6 semanas y menores probabilidades de estenosis anastomóticas en el caso de reconstrucción tardía. CONCLUSIÓN: Este metaanálisis muestra que la reconstrucción quirúrgica de la BDI entre 2 y 6 semanas debe evitarse, ya que este intervalo se asoció con un mayor riesgo de morbilidad postoperatoria y estenosis de la hepaticoyeyunostomía.

Characterisation and comparison of the uptake of ionizable and polar pesticides, pharmaceuticals and personal care products by POCIS and Chemcatchers.

Growing concern about the environmental impact of ionizable and polar organic chemicals such as pesticides, pharmaceuticals and personal care products has lead to the inclusion of some in legislative and regulatory frameworks. It is expected that future monitoring requirements for these chemicals in aquatic environments will increase, along with the need for low cost monitoring and risk assessment strategies. In this study the uptake of 13 neutral and 6 ionizable pesticides, pharmaceuticals and personal care products by modified POCIS (with Strata™-X sorbent) and Chemcatchers™ (SDB-RPS or SDB-XC) was investigated under controlled conditions at pH = 6.5 for 26 days. The modified POCIS and Chemcatcher™ (SDB-RPS) samplers exhibited similar performance with the uptake of the majority of the 19 chemicals of interest categorised as linear over the 26 day deployment. Only a few ionized herbicides (picloram and dicamba) and triclosan showed negligible accumulation. Chemcatcher™ with SDB-XC sorbent performed relatively poorly with only carbamazepine having a linear accumulation profile, and 8 compounds showing no measurable accumulation. Differences in the uptake behavior of chemicals were not easily explained by their physico-chemical properties, strengthening the requirement for detailed calibration data. PES membranes accumulated significant amount of some compounds (i.e. triclosan and diuron), even after extended deployment (i.e. 26 days). At present there is no way to predict which compounds will demonstrate this behavior. Increasing membrane pore size from 0.2 to 0.45 µm for Chemcatcher™ (SBD-RPS) caused an average increase in Rs of 24%.

Partial liver resection because of bile duct injury.

AIM: To analyze the outcome of partial liver resection (PHx) after bile duct injury (BDI) in patients after multimodality treatment. METHODS: Between 1990 and 2012, 800 BDI patients were referred to our tertiary center. Patient characteristics and long-term outcomes were described. RESULTS: PHx was performed in 11 patients (1.4%), mean age 48.3 years (range 29.3-83.5 years), mainly because of complex injury [Amsterdam classification type D (n = 10, 91%), Strasberg type E (n = 7, 64%) and Bismuth type IV (n = 8, 73%)]. In 7 patients (64%), concomitant vasculobiliary injury had occurred in the right hepatic artery (n = 3), proper hepatic artery (n = 1), portal vein (PV; n = 2) and the right hepatic artery and PV simultaneously (n = 1). Early PHx was performed in 2 patients and delayed resection in 9 patients after a median of 57.8 months (range 3.9-183.4 months). The in-hospital mortality was 18% (n = 2) and long-term mortality 9% (n = 1). There were no significant differences in postoperative complications between early and late resection. CONCLUSIONS: Indications for PHx after BDI in patients referred to a tertiary center are relatively low (1.4%) and generally apply to vasculobiliary injury. The implications for treatment are important, so it is worthwhile to classify vascular injuries in the management of BDI.

[An unusual presentation of a periappendicular infiltrate]. / Een ongebruikelijke manifestatie van een periappendiculair infiltraat.

A 17-year-old boy presented with an atypical manifestation of acute appendicitis. The clinical aspect, radiological investigations and peroperative aspect of the appendix were not conclusive but nevertheless a neuroendocrine tumour (carcinoid tumour) of the appendix was suspected. After ileocaecal resection and resection of pathological lymph nodes, histopathological evaluation revealed the diagnosis: a periappendicular mass without any sign of malignancy. In retrospect, ileocaecal resection was performed for a benign disease. This case illustrates that an unusual presentation of a common disease occurs more frequently than a typical presentation of a rare disease.

[A colo-colic invagination on the basis of MutYH-associated polyposis in a boy aged 14]. / Een colocolische invaginatie op basis van MutYH-geassocieerde polyposis coli bij een jongen van 14 jaar.

A 14-year-old boy presented with acute abdominal pain, vomiting and diarrhoea. Colo-colic intussusception was diagnosed by means of a colonic contrast X-ray. The intussusception was successfully reduced during this procedure. Hundreds of polyps were seen throughout the entire colon. Genetic research showed a mutation of the MutYH gene. Proctocolectomy with ileoanal pouch anastomosis was carried out. The pathology specimen showed an intramucosal carcinoma and multiple adenomas. MutYH-associated polyposis coli is an autosomal recessive disease that occurs as a result of a mutation in the MutYH gene. This will lead to polyposis coli. An intussusception is a rarely seen symptom. Patients need preventive surgical treatment because of the high risk developing a colorectal carcinoma.

Polychlorinated biphenyls and hexachlorobenzene in atmosphere, sea-surface microlayer, and water measured with semi-permeable membrane devices (SPMDs).

The time evolution of polychlorinated biphenyl (PCB) levels and hexachlorobenzene (HCB) levels in air, seawater, and at the sea-air boundary layer was examined during autumn and winter at a near-shore location in the Western Wadden Sea (Netherlands), using semi-permeable membrane devices (SPMDs). Performance reference compounds (PRCs) were added to the SPMDs prior to exposure for measuring the in situ exchange kinetics. For PCBs, a fair degree of equilibrium between atmosphere and water was found. HCB concentrations in the atmosphere were about eight times higher than the equilibrium concentration. PCB concentrations in seawater and atmosphere fell by a factor of 2-10, respectively, during the sampling period. HCB concentrations in water increased by a factor of 2. Atmospheric concentrations of HCB showed a decrease by a factor of about 10. Results for the sea-surface microlayer (SSM) deployment showed that the chemical activities at the air-water interface did not differ from those in deeper water layers. This means that the SSM was of no special toxicological significance in this study as far as PCBs and HCB are concerned.