Creep Analysis of Bamboo Composite for Structural Applications.

The present study investigates the phenomena of creep in a bamboo composite. The material was tested under tensile and compressive loading and simulated in finite element analysis software to estimate the creep coefficients. The presented findings have displayed the material's propensity to fail at loads lower than the recorded ultimate strength, as early as 65% of this strength within 100 h, showing the importance of considering creep when designing structural components.

[Pediatric heart surgery minimally invasive: experience of a Colombian center].

Objective: During the last decades, cardiac surgery has revolutionized, there is a growing interest in minimizing the physical aggression of surgical procedures, seeking a quick recovery, minimally invasive approaches have been a trend in recent years, with safety and efficacy equivalent to traditional techniques sternotomy. The objective of this study is to compare ­clinical results between pediatric patients with congenital heart disease undergoing minimally invasive surgery versus standard sternotomy.

Methods: Case-control study, nested in a retrospective cohort.

Percutaneous pulmonary valve implant: Two Colombian case reports.

Los pacientes con cardiopatías congénitas que afectan la continuidad del ventrículo derecho con la arteria pulmonar deben someterse con frecuencia a intervenciones debido a la limitada vida útil de los conductos quirúrgicos, lo que lleva al desarrollo de disfunción ventricular derecha por cambios en la geometría ventricular y predisposición a arritmias letales, con el consiguiente riesgo de reintervenciones. El implante valvular percutáneo pulmonar es una nueva alternativa terapéutica, menos invasiva en comparación con la quirúrgica, para pacientes seleccionados. Se realiza una revisión de las publicaciones médicas actuales disponibles y se describe la experiencia inicial del implante valvular pulmonar percutáneo en un centro colombiano de alta complejidad para el tratamiento de enfermedades cardiovasculares, en dos pacientes con disfunción del homoinjerto aórtico en posición pulmonar con doble lesión valvular, en los cuales el implante valvular pulmonar percutáneo fue una conducta exitosa.

Results of balloon atrial septostomy as preparation for surgical correction in transposition of great arteries.

Balloon atrial septostomy (BAS) is a palliative procedure performed in the preoperative management of patients with transposition of great arteries (TGA), to improve the mixing of blood between the 2 systems. This report describes experience at the Clínica Cardiovascular Santa Maria in Medellin, Colombia. Between 2002 and 2010, 22 patients with TGA underwent BAS.

Recurrence of inflammatory pseudotumor in the distal bile duct: lessons learned from a single case and reported cases.

Inflammatory myofibroblastic tumors (IMTs) or inflammatory pseudotumors (IPs) have been extensively discussed in the literature. They are usually found in the lung and upper respiratory tract. However, reporting of cases involving the biliopancreatic region has increased over recent years.

The use of preoperative endoscopic tattooing in laparoscopic colorectal cancer surgery for endoscopically advanced tumors: a prospective comparative clinical study.

Background: Endoscopic India ink marking techniques are often used for the intraoperative location of colonic polyps and early stage neoplasms. The aim of this study was to compare how effective this technique is compared with conventional localization methods, as well as its influence on the results of colorectal laparoscopy (LSCRC) for endoscopically advanced tumors.

Methods: From January 2003 to January 2005, 47 patients with colorectal carcinomas were included in the study.