[Approach to percutaneous nephrolithotomy. Comparison of the procedure in a one-shot versus the sequential with metal dilata].

Introduction: Percutaneous nephrolithotomy is an efficient approach for treatment of different types of kidney stones. Various types of access techniques have been described like sequential dilatation and one-shot procedure.

Objective: To determine the differences in time of exposure to X-rays and hemoglobin levels between techniques.

[Platelet-rich plasma and its effect in bone regeneration in mandibular fractures. Controlled clinical trial].

Background: Currently there is great interest in developing clinical applications of platelet-rich plasma to enhance bone repair.

Aim: To assess bone regeneration in mandibular fractures, with the application of this adjuvant.

Methods: Twenty patients with mandibular fractures were included in a randomized clinical trial.

Oral glutamine reduces myocardial damage after coronary revascularization under cardiopulmonary bypass. A randomized clinical trial.

Background: Glutamine is the most abundant free amino acid in the body. It modulates immune cell function and is an important energy substrate for cells in critically ill patients. Reduction of injury cardiac markers had been observed in patients receiving intravenous glutamine and in a pilot study with oral glutamine.

[Not Available].

Introducción: la desnutrición intrahospitalaria se ha descrito hace más de 70 años como un problema frecuente. En México se reportan cifras de entre el 20% al 50%; sin embargo no se ha estudiado su prevalencia ni su asociación con la morbilidad y mortalidad hospitalaria.Objetivos: evaluar el estado nutricional y su relación con la morbimortalidad hospitalaria en pacientes mexicanos.

Bone regeneration in mandibular fractures after the application of autologous mesenchymal stem cells, a randomized clinical trial.

Background/aim: Facial injury in adults can commonly result in fractures of the mandible. Autologous mesenchymal stem cells (AMSCs) transplantation is proposed as an alternative to conventional graft treatment to improve bone regeneration. The aim was to evaluate the effectiveness of AMSCs application in mandibular fractures to reduce regeneration time and increase bone quality.