A 76-year-old Korean woman visited to emergency room because of respiratory arrest and admitted to intensive care unit of the hospital. Severe hypothyroidism was diagnosed after repeated failure of weaning mechanical ventilator. Respiratory arrest and weaning failures were considered to be associated with hypoventilation due to hypothyroidism. She was recovered and weaned from mechanical ventil...

OBJECTIVE A comparison was made between invasive mechanical ventilation (IMV) and noninvasive positive pressure ventilation (NPPV) in haematological patients with acute respiratory failure. DESIGN A retrospective observational study was made from 2001 to December 2011. SETTING A clinical-surgical intensive care unit (ICU) in a tertiary hospital. PATIENTS Patients with hematological malign...

ecently published studies have emphasized the technical ifficulty of assessing mechanical left ventricular (LV) synhrony in patients undergoing cardiac resynchronization herapy (CRT). The failure of a large, multicenter study to dentify benefit from CRT in dyssynchronous, narrow omplex heart failure (1), as well as the failure of synchrony arkers to predict success of CRT (2), has cast a cloud ...

Jacketing of reinforced concrete columns is a common and useful strengthening method. This method substantially improves mechanical properties of the column, such as flexural strength as well as shear and ductility. In this paper, the behavior of confined reinforced concrete columns are investigated. The results indicate that the method is more effective for slender columns in the region of the...

OBJECTIVE To identify risk factors for extubation failure and reintubation in newborn infants subjected to mechanical ventilation and to establish whether ventilation parameters and blood gas analysis behave as predictors of those outcomes. METHODS Prospective study conducted at a neonatal intensive care unit from May to November 2011. A total of 176 infants of both genders subjected to mecha...

The hardmetal cutting tools used in machining are submitted to extreme conditions in terms of temperature and mechanical loading. A better understanding of the failure of cutting tools and capability to predict tool life are key factors in the development of new tool materials with improved mechanical behaviour. Main failure mechanisms are wear, thermal–mechanical fatigue and brittle fracture. ...

OBJECTIVE To evaluate the usefulness of continuous noninvasive mechanical ventilation and mechanical coughing aids to avoid endotracheal intubation and tracheostomy during episodes of acute respiratory failure in patients with neuromuscular disease. DESIGN We conducted a prospective cohort study at the respiratory medicine ward of a university hospital to study the success rate of the use of ...

Heart failure remains one of the most common causes of morbidity and mortality worldwide. The advent of mechanical circulatory support devices has allowed significant improvements in patient survival and quality of life for those with advanced or end-stage heart failure. We provide a general overview of past and current mechanical circulatory support devices encompassing options for both short-...

ME:3052 Mechanical Systems 4 s.h. Topics in mechanical behavior and failure of materials; materials selection in design; stress and deflection analysis; static failure theories; fatigue and durability in design; fracture, statistical, and reliability considerations; introduction to finite element analysis using commercial software packages; standards, product liability, engineering ethics. Prer...