The aim of the research is to gain an understanding of consumer behavior in developing countries in the electronic environment. For this purpose, the four constructs of the PREVEINCOSA scale were analyzed: purchase intention as the dependent variable and trust, perceived value, and satisfaction as the determining variables of the former. For this purpose, by means of convenience sampling, an online questionnaire was shared with citizens in Mexico, Peru, and Colombia. A total of 330 questionnaires were collected from people who knew or had bought clothes in an online shop of the small company. Structural equation modeling (SEM) was used to validate the model and test the hypotheses. The results indicate that trust and satisfaction directly and positively influence value perception and online purchase intention and that value perception directly and positively influences online purchase in...

Hombre de 38 años que consultó por sangrado digestivo de dos días de duración. La esofagogastroduodenoscopía demostró múltiples lesiones nodulares de color púrpura en el antro gástrico. La histopatología mostró un tumor formado por células fusiformes y proliferación vascular, hallazgos consistentes con sarcoma de Kaposi del estómago. Posteriormente se determinó la infección por virus de inmunodeficiencia (VIH) del paciente.

La coexistencia de embarazo y enfermedad hepática representa una situación clínica compleja. Durante el embarazo se desarrolla un estado hipervolémico debido a un flujo esplácnico incrementado, que contribuye a mayor presión portal transmitida a las venas colaterales que incrementan el riesgo de hemorragia varicosa en este grupo de pacientes. Se reporta el caso de una paciente de 39 años en el sexto embarazo y sin ningún antecedente médico previo que presenta hipertensión portal pre-sinusoidal y que gracias al manejo multidisciplinario adecuado, tuvo un parto sin complicaciones. Se revisa la literatura pertinente al caso.

Advanced heart failure is a major health problem for which heart transplantation or left ventricular assist devices are the only effective treatments. Intra-aortic balloon pump inserted using femoral artery access as a bridge to heart transplantation is still frequently used, but has the disadvantage of limiting the patient’s movements, hence exposing him or her to the hazards of immobility and threatening the success of the procedure or hindering recovery. Access through the subclavian artery has become an attractive alternative since it doesn’t impair the patient’s mobility, and there is increasing evidence supporting its use. We present the first case of subclavian counterpulsation balloon implantation in a cardiovascular care center in Colombia.

Advanced heart failure is a major health problem for which heart transplantation or left ventricular assist devices are the only effective treatments. Intra-aortic balloon pump inserted using femoral artery access as a bridge to heart transplantation is still frequently used, but has the disadvantage of limiting the patient’s movements, hence exposing him or her to the hazards of immobility and threatening the success of the procedure or hindering recovery. Access through the subclavian artery has become an attractive alternative since it doesn’t impair the patient’s mobility, and there is increasing evidence supporting its use. We present the first case of subclavian counterpulsation balloon implantation in a cardiovascular care center in Colombia.

Objective.  Evaluate the change of lactate levels and its prognostic role in the postoperative period of patients undergoing pulmonary thromboendarterectomy. Methods. Retrospective study between 2001 and 2019. Patients older than 18 years and who underwent pulmonary thromboendarterectomy were included. The U Mann Whitney test was performed to evaluate the change between lactate levels, and Cox regression analysis to evaluate the relationship with mortality. Areas under the curve were constructed for lactate levels. Results. Seventy-three patients were operated on during the study period. Median age was 51 years, 55% female. The median lactate on days 1 was 4.65 mml/L and on day 2 it was 1.62 mml/L with a change of 2.87 mml/L. No differences were found between the levels measured on day 1 and 2 between the people who died and those who did not on day 30. In the multivariate regressio...

Objective.  Evaluate the change of lactate levels and its prognostic role in the postoperative period of patients undergoing pulmonary thromboendarterectomy. Methods. Retrospective study between 2001 and 2019. Patients older than 18 years and who underwent pulmonary thromboendarterectomy were included. The U Mann Whitney test was performed to evaluate the change between lactate levels, and Cox regression analysis to evaluate the relationship with mortality. Areas under the curve were constructed for lactate levels. Results. Seventy-three patients were operated on during the study period. Median age was 51 years, 55% female. The median lactate on days 1 was 4.65 mml/L and on day 2 it was 1.62 mml/L with a change of 2.87 mml/L. No differences were found between the levels measured on day 1 and 2 between the people who died and those who did not on day 30. In the multivariate regressio...