Purpose: To demonstrate ventilation changes in an animal model of methacholine-induced bronchoconstriction using hyperpolarized (HP) helium-3 (He-3) MRI.
Materials And Methods: Bronchoconstriction was induced in 11 healthy rats using an intravenous injection of methacholine. The He-3 was laser-polarized using a custom-built system.
Background/aims: To determine whether addition of amantadine to pegylated interferon/ribavirin improved response rates among chronic hepatitis C patients, non-responders to interferon/ribavirin and study the dynamic of response.
Methods: In a double blind, multicenter, randomized trial, 200 non-responder patients received pegylated interferon 1.5 microg/kg per week and ribavirin 800-1200 mg/day, plus either amantadine 200 mg/day or placebo for 48 weeks.
Background: Although psychological stress is known to favor ventricular arrhythmic events, there is no evidence that stress management intervention decreases ventricular electrical instability in implantable cardioverter-defibrillator (ICD) patients. The aim of the study was to determine whether cognitive behavioral therapy (CBT) results in a decrease of arrhythmic events requiring ICD intervention through an improvement in sympathovagal balance.
Methods: Of 253 consecutive ICD patients (age 59 +/- 10 years, 64 men), 70 were randomly assigned to CBT (n = 35) or conventional medical care (n = 35).
Rev Chir Orthop Reparatrice Appar Mot
October 2005
Purpose Of The Study: Classically, the shoulder joint is thought to age more by its tendons than by its cartilages, the incidence of rotator cuff tears being considered to increase with age. The purpose of this work was to assess the natural history of the shoulder joint based on a clinical and radiological study of 200 patients aged 70 to 101 years.
Material And Methods: The cohort was composed of 48 men (34%) and 152 women (76%), aged 84.
Purpose: To determine the evolution of the ischemic lesion volumes in a population treated with tissue plasminogen activator (t-PA), MRIs were performed before treatment and 24 hours later; final infarct size was evaluated 60 days later.
Materials And Methods: A total of 42 patients with hemispheric stroke were recruited for a thrombolytic study. Intravenous t-PA was given after MRI within the first seven hours after stroke onset.