Control of hypercapnia and mortality in home mechanical ventilation: the population-based DISCOVERY study.

Background: Studies on the survival of patients with home mechanical ventilation (HMV) are sparse. We aimed to analyse the impact of controlled hypercapnia on survival over 27 years among patients with HMV in Sweden.

Study Design And Methods: Population-based cohort study of adult patients starting HMV in the Swedish Registry for Respiratory Failure (Swedevox) during 1996-2022 cross-linked with the National Cause of Death registry.

Home Mechanical Ventilation and Risk of Hospitalization in Obesity Hypoventilation Syndrome - The Population-based DISCOVERY Study.

Rationale: Patients with obesity hypoventilation syndrome (OHS) have high risk of hospitalization, which might be decreased by home mechanical ventilation (HMV).

Objectives: To evaluate annualized hospitalization rate (AHR) and change in AHR in patients with OHS starting home mechanical ventilation (HMV), and explore if there were any difference in AHR by starting HMV acutely or electively.

Methods: Population-based longitudinal study of patients with OHS starting HMV in the Swedish DISCOVERY cohort between 1996 and 2018, cross-linked with the National Patient Registry for national data on hospital admissions.

The Swedish sleep apnea registry (SESAR) cohort - "Real world data" on a national level.

Introduction: The Swedish Sleep Apnea Registry (SESAR) collects clinical data from individual obstructive sleep apnea (OSA) patients since 2010. SESAR has recently been integrated with additional national healthcare data. The current analysis presents the SESAR structure and representative clinical data of a national sleep apnea cohort.

Long-Term Oxygen Therapy for 24 or 15 Hours per Day in Severe Hypoxemia.

Background: Long-term oxygen supplementation for at least 15 hours per day prolongs survival among patients with severe hypoxemia. On the basis of a nonrandomized comparison, long-term oxygen therapy has been recommended to be used for 24 hours per day, a more burdensome regimen.

Methods: To test the hypothesis that long-term oxygen therapy used for 24 hours per day does not result in a lower risk of hospitalization or death at 1 year than therapy for 15 hours per day, we conducted a multicenter, registry-based, randomized, controlled trial involving patients who were starting oxygen therapy for chronic, severe hypoxemia at rest.