Ectoparasites of Coragyps atratus (Bechstein, 1793) (Accipitriformes: Cathartidae) on Bucaramanga, Santander, Colombia

Identificar y conformar una lista de especies de ectoparásitos en el gallinazo negro en dos localidades de la ciudad de Bucaramanga, Colombia. Alcance. Realizar un aporte al conocimiento sobre las especies de ectoparásitos encontrados en piel y plumaje del gallinazo negro en el área metropolitana de Bucaramanga, en el nororiente de los Andes. Metodología. Las aves fueron capturadas en la Plaza de Mercado Guarín y en el Centro de Disposición de Residuos Sólidos “El Carrasco”, ambos en el área metropolitana de Bucaramanga, Colombia. Para obtener los ectoparásitos, los gallinazos se introdujeron uno por uno, en una cámara de fumigación previamente modificada para preservar la vida del ave durante el procedimiento. Adicionalmente, se tomaron algunas plumas y se preservaron en etanol 70%. Principales resultados. Se colectaron 1.696 ectoparásitos sobre 18 gallinazos negros (Coragyps atratus) en dos sitios de Bucaramanga (Colombia). Los parásitos fueron identificados como Cathartacarus coragyps (Gabuciniidae), Dermanysus gallinae (Dermanyssidae), Cuculiphilus alternatus (Menoponidae), Falcolipeurus marginalis (Philopteridae), Laemobothrion glutinans (Laemobothriidae) y Olfesia bisulcata (Hippoboscidae). Las especies más abundantes fueron Cuculiphilus alternatus con 1.217 individuos y Cathartacarus coragyps con 295. Conclusiones. La mayor parte de estos registros son nuevos para la región y amplían el conocimiento con respecto a la distribución de estos ectoparásitos. Tanto las pruebas de Mann-Whitney como los índices parasitológicos calculados permiten observar diferencias entre los dos sitios de muestreo.To identify and to list ectoparasite species of black vulture in two locations in Bucaramanga, Colombia. Scope. To contribute to the knowledge of ectoparasites species found in black vultures in the metropolitan area of Bucaramanga, at the northeastern Andes. Methodology. The birds were captured in Guarin Marketplace and "El Carrasco" Solid Waste Disposal Center, both in the metropolitan area of Bucaramanga, Colombia. To obtain the ectoparasites, each black vulture were introduced into a fumigation chamber previously modified to preserve the life of the bird during the procedure. Moreover, some feathers were taken and preserved in ethanol 70%. Main results. In total, 1,696 ectoparasites were collected from 18 black vultures (Coragyps atratus) in two localities of Bucaramanga (Colombia). The parasites were identified as Cathartacarus coragyps (Gabuciniidae), Dermanysus gallinae (Dermanyssidae), Cuculiphilus alternatus (Menoponidae), Falcolipeurus marginalis (Philopteridae), Laemobothrion glutinans (Laemobothriidae) and Olfesia bisulcata (Hippoboscidae). The most abundant species were Cuculiphilus alternatus with 1,217 specimens and Cathartacarus coragyps with 295. Conclusions. Most of these records are new to the region and contribute to improving the knowledge concerning the ectoparasites distribution in the study area. Mann-Whitney tests and the calculated parasitological indexes show differences between the two sampling places

Evaluation of a quality improvement intervention to reduce anastomotic leak following right colectomy (EAGLE): pragmatic, batched stepped-wedge, cluster-randomized trial in 64 countries

Background Anastomotic leak affects 8 per cent of patients after right colectomy with a 10-fold increased risk of postoperative death. The EAGLE study aimed to develop and test whether an international, standardized quality improvement intervention could reduce anastomotic leaks. Methods The internationally intended protocol, iteratively co-developed by a multistage Delphi process, comprised an online educational module introducing risk stratification, an intraoperative checklist, and harmonized surgical techniques. Clusters (hospital teams) were randomized to one of three arms with varied sequences of intervention/data collection by a derived stepped-wedge batch design (at least 18 hospital teams per batch). Patients were blinded to the study allocation. Low- and middle-income country enrolment was encouraged. The primary outcome (assessed by intention to treat) was anastomotic leak rate, and subgroup analyses by module completion (at least 80 per cent of surgeons, high engagement; less than 50 per cent, low engagement) were preplanned. Results A total 355 hospital teams registered, with 332 from 64 countries (39.2 per cent low and middle income) included in the final analysis. The online modules were completed by half of the surgeons (2143 of 4411). The primary analysis included 3039 of the 3268 patients recruited (206 patients had no anastomosis and 23 were lost to follow-up), with anastomotic leaks arising before and after the intervention in 10.1 and 9.6 per cent respectively (adjusted OR 0.87, 95 per cent c.i. 0.59 to 1.30; P = 0.498). The proportion of surgeons completing the educational modules was an influence: the leak rate decreased from 12.2 per cent (61 of 500) before intervention to 5.1 per cent (24 of 473) after intervention in high-engagement centres (adjusted OR 0.36, 0.20 to 0.64; P < 0.001), but this was not observed in low-engagement hospitals (8.3 per cent (59 of 714) and 13.8 per cent (61 of 443) respectively; adjusted OR 2.09, 1.31 to 3.31). Conclusion Completion of globally available digital training by engaged teams can alter anastomotic leak rates. Registration number: NCT04270721 (http://www.clinicaltrials.gov)