Yoga and breathing technique training in patients with heart failure and preserved ejection fraction: study protocol for a randomized clinical trial.

Background: Current therapies for heart failure (HF) are followed by strategies to improve quality of life and exercise tolerance, besides reducing morbidity and mortality. Some HF patients present changes in the musculoskeletal system and inspiratory muscle weakness, which may be restored by inspiratory muscle training, thus increasing respiratory muscle strength and endurance, maximal oxygen uptake (VO), functional capacity, respiratory responses to exercise, and quality of life. Yoga therapies have been shown to improve quality of life, inflammatory markers, and peak VO mostly in HF patients with a reduced ejection fraction.

Risk factors for intensive care unit admission in patients with severe leptospirosis: a comparative study according to patients' severity.

Background: The aim of this study is to investigate predictive factors for intensive care unit (ICU) admission among patients with severe leptospirosis.

Methods: This is a retrospective study with all patients with severe leptospirosis admitted to a tertiary hospital. Patients were divided in ICU and ward groups.

Hemophagocytic Syndrome in Children With Visceral Leishmaniasis.

Background: Hemophagocytic lymphohistiocytosis (HLH) is a serious complication of visceral leishmaniasis (VL). The aim of this study is to describe demographical, clinical and laboratory features of HLH in children with VL.

Methods: This is a retrospective cohort of children with HLH and VL admitted to a tertiary hospital in Northeast, Brazil, from January 2012 to April 2014.