[Complicated right Bochdalek hernia].

The clinical case of a 53-year-old woman diagnosed with a right Bochdalek hernia complicated by intestinal obstruction is presented. This type of diaphragmatic hernia is rare, especially those located on the right side, but is the most common non-hiatal hernia. Her diagnosis focused on the computed tomography of the chest and abdomen and the repair was performed using a laparoscopic approach.

Early laparoscopic cholecystectomy in acute mild gallstone pancreatitis. Is there a role for routine admission contrast-enhanced CT Scan?

Purpose: This study aims to evaluate the efficacy of admission contrast-enhanced CT scans in formulating strategies for performing early laparoscopic cholecystectomy in cases of acute gallstone pancreatitis.

Methods: Patients diagnosed with acute gallstone pancreatitis underwent a CT scan upon admission (after at least 24 h from symptom onset) to confirm diagnosis and assess peripancreatic fluid, collections, gallstones, and common bile duct stones. Patients with mild acute gallstone pancreatitis, following the Atlanta classification and Baltazar score A or B, were identified as candidates for early cholecystectomy (within 72 h of admission).

[Not Available].

La colitis fulminante por Clostridium difficile se caracteriza por el desarrollo de una inflamación aguda severa del colon, asociada a toxicidad sistémica, y es la forma más grave de colitis aguda con una mortalidad de hasta el 80%. Presentamos el caso de un varón de 45 años que acude al servicio de urgencias por dolor abdominal agudo, diarrea y fiebre. La tomografía computarizada mostró engrosamiento parietal difuso circunferencial del colon, incluido el recto, asociado con estriación de los tejidos circundantes y formaciones ganglionares.

[Fulminant colitis due to Clostridium Difficile in a patient with a history of liver transplantation: a severe life-threatening complication].

Clostridium difficile´s fulminant colitis is characterized by the development of severe acute inflammation of the colon, associated with systemic toxicity. Fulminant colitis is the most serious form of acute colitis with a mortality of up to 80%. We present the case of a 45-year-old man who presented to the emergency department with acute abdominal pain, diarrhea and fever.

[Degree of satisfaction with the informed consent process and participation in clinical trials. A 3400 patients' study].

The level of comprehension on the information provided in the process of the informed consent can provide a free and voluntary decision. The comprehension and satisfaction of the participants affect their adherence to clinical trials. The objective of the study was to analyze the level of satisfaction of the subjects with the informed consent process as well as with their participation in clinical trials.

[Recurrent primary enterolithiasis with no apparent cause. Presentation of a case].

Enterolithiasis is a rare cause of intestinal obstruction. It occurs with a low frequency and its etiology can be primary or secondary. They present nonspecifically clinically and their resolution is usually surgical.

Renal clear cell carcinoma metastasis to submandibular gland: case report and review of the literature.

Metastases from renal clear cell carcinoma (RCCC) to the head and neck (HN) region are rare, representing 8-14% of all RCCC metastases, with the thyroid gland being the most common site of RCCC metastasis in the HN. Metastatic tumors that are located in the salivary glands have a prevalence of 5%, while the submandibular gland is only involved in 1% of the cases. We present the case of a 74-year-old female patient with metastasis to the submandibular gland, 11 years after radical nephrectomy for a RCCC.

Impact of the International Nosocomial Infection Control Consortium (INICC) Multidimensional Hand Hygiene Approach During 3 Years in 6 Hospitals in 3 Mexican Cities.

Objectives: To evaluate the impact of the International Nosocomial Infection Control Consortium (INICC) multidimensional hand hygiene (HH) approach in Mexico, and analyze predictors of poor HH compliance.

Methods: From June 2002 to April 2006, we conducted a prospective, observational, before-and-after study in 8 intensive care units (ICUs) from 6 hospitals in 3 cities of Mexico. The approach included administrative support, availability of supplies, education and training, reminders in the workplace, process surveillance, and performance feedback.

Periodic emission of droplets from an oscillating electrified meniscus of a low-viscosity, highly conductive liquid.

The generation of identical droplets of controllable size in the micrometer range is a problem of much interest owing to the numerous technological applications of such droplets. This work reports an investigation of the regime of periodic emission of droplets from an electrified oscillating meniscus of a liquid of low viscosity and high electrical conductivity attached to the end of a capillary tube, which may be used to produce droplets more than ten times smaller than the diameter of the tube. To attain this periodic microdripping regime, termed axial spray mode II by Juraschek and Röllgen [R.

Prevalence of antibodies against transfusion-transmissible infections (TTI) in blood donors from the Colombian eastern region.

Background: The main purpose of this study was to establish the prevalence of antibodies against five transfusion-transmissible infections (TTIs) in blood donors from one of the most important blood banks in Colombia.

Methods: A cross-sectional, descriptive and case control study was performed from a database of Higuera-Escalante blood bank, for a period of a year. Serum was used for donor screening.

Effectiveness of a multidimensional approach for prevention of ventilator-associated pneumonia in adult intensive care units from 14 developing countries of four continents: findings of the International Nosocomial Infection Control Consortium.

Objectives: The aim of this study was to analyze the effect of the International Nosocomial Infection Control Consortium's multidimensional approach on the reduction of ventilator-associated pneumonia in patients hospitalized in intensive care units.

Design: A prospective active surveillance before-after study. The study was divided into two phases.

Time-dependent analysis of extra length of stay and mortality due to ventilator-associated pneumonia in intensive-care units of ten limited-resources countries: findings of the International Nosocomial Infection Control Consortium (INICC).

Ventilator-associated pneumonias (VAPs) are a worldwide problem that significantly increases patient morbidity, mortality, and length of stay (LoS), and their effects should be estimated to account for the timing of infection. The purpose of the study was to estimate extra LoS and mortality in an intensive-care unit (ICU) due to a VAP in a cohort of 69,248 admissions followed for 283,069 days in ICUs from 10 countries. Data were arranged according to the multi-state format.

Equilibrium height of a liquid in a gap between corrugated walls under spontaneous capillary penetration.

A simple and general method is presented to calculate the equilibrium surface of a liquid that penetrates spontaneously, due to capillarity, in the gap between two vertical corrugated plates. Several properties of the equilibrium solution are discussed and the results are backed by a qualitative experiment.

International Nosocomial Infection Control Consortium report, data summary for 2002-2007, issued January 2008.

We report the results of an International Nosocomial Infection Control Consortium (INICC) surveillance study from 2002 through 2007 in 98 intensive care units (ICUs) in Latin America, Asia, Africa, and Europe. During the 6-year study, using Centers for Disease Control and Prevention (CDC) National Nosocomial Infections Surveillance System (NNIS) definitions for device-associated health care-associated infection, we collected prospective data from 43,114 patients hospitalized in the Consortium's hospital ICUs for an aggregate of 272,279 days. Although device utilization in the INICC ICUs was remarkably similar to that reported from US ICUs in the CDC's National Healthcare Safety Network, rates of device-associated nosocomial infection were markedly higher in the ICUs of the INICC hospitals: the pooled rate of central line-associated bloodstream infections (CLABs) in the INICC ICUs, 9.

Breakup of a supported drop of a viscous conducting liquid in a uniform electric field.

Numerical computations and order-of-magnitude estimates are used to describe the time evolution of a drop of a very viscous liquid of finite electrical conductivity attached to a metallic plate which is suddenly subject to a uniform electric field. Under the action of the electric stresses induced at its surface, the drop elongates in the direction of the field, and charged droplets are emitted when the strength of the field is higher than a certain critical value. A stationary emission mode exists in which the attached drop develops a conical tip and a thin jet, with small droplets emitted from the end of the jet in a process that involves the formation of a long ligament.

Model of the meniscus of an ionic-liquid ion source.

A simple model of the transfer of charge and ion evaporation in the meniscus of an ionic-liquid ion source working in the purely ionic regime is proposed on the basis of order-of-magnitude estimates which show that, in this regime, (i) the flow in the meniscus is dominated by the viscosity of the liquid and is affected very little by the mass flux accompanying ion evaporation, and (ii) the effect of the space charge around the evaporating surface is negligible and the evaporation current is controlled by the finite electrical conductivity of the liquid. The model predicts that a stationary meniscus of a very polar liquid undergoing ion evaporation is nearly hydrostatic and can exist only below a certain value of the applied electric field, at which the meniscus attains its maximum elongation but stays smooth. The electric current vs applied electric field characteristic displays a frozen regime of negligible ion evaporation at low fields and a conduction-controlled regime at higher fields, with a sharp transition between the two regimes owing to the high sensitivity of the ion evaporation rate to the electric field.

Device-associated nosocomial infections in 55 intensive care units of 8 developing countries.

Background: Health care-associated infections from invasive medical devices in the intensive care unit (ICU) are a major threat to patient safety. Most published studies of ICU-acquired infections have come from industrialized western countries. In a Centers for Disease Control and Prevention (CDC) National Nosocomial Infections Surveillance (NNIS) System report, the U.

Device-associated nosocomial infection rates in intensive care units in four Mexican public hospitals.

Background: Routine surveillance of nosocomial infections has become an integral part of infection control and quality assurance in US hospitals.

Methods: As part of the International Nosocomial Infection Control Consortium, we performed a prospective nosocomial infection surveillance cohort study in 5 adult intensive care units of 4 Mexican public hospitals using the Centers for Disease Control and Prevention National Nosocomial Infections Surveillance system definitions. Site-specific nosocomial infection rates were calculated.

[Interrater reliability of the Spanish version of Schedule for Affective Disorders and Schizophrenia for School-Age Children--Present and Lifetime version (K-SADS-PL)].

Introduction: The K-SADS-PL diagnostic interview is useful for the cross-sectional and longitudinal evaluation of psychopathology in children and adolescents. The objective of this article was to describe the interrater reliability of the Spanish version of the Schedule for Affective Disorders and Schizophrenia for School-Age Children--Present and Lifetime version (K-SADS-PL).

Method: The interview was translated, back-translated and adapted to Spanish.

The effect of process control on the incidence of central venous catheter-associated bloodstream infections and mortality in intensive care units in Mexico.

Purpose: To ascertain the effect of an infection control program including process control on intensive care unit (ICU) rates of intravascular device (IVD)-associated bloodstream infection (BSI).

Setting: Two level III adult ICUs in one public university hospital in Mexico: one medical surgical ICU and one neurosurgical ICU. POPULATION STUDY: All adult patients admitted to study units who had a central venous catheter (CVC) in place for at least 24 hrs.

Natural convection in tilted cylindrical cavities embedded in rocks.

This paper presents a theoretical investigation of the low Rayleigh number conjugate natural convection in a slender tilted cylindrical cavity which is embedded in a solid that is subject to a uniform vertical temperature gradient. Two cases have been analyzed; a fluid-filled cavity and a cavity filled with a fluid-saturated porous medium. The temperature of the solid and the velocity, temperature, and pressure in the cavity have been determined by analytically solving the coupled problems within and around the cavity.