![]() ![]() VDalveolar was calculated as: (VD / VT × VT) – anatomic dead space. The physiologic dead space (VDphysiologic) to tidal volume (VT) ratio (VD/VT) was calculated using the Enghoff modification of the Bohr equation. Ventilatory efficiency (evaluated as the V˙V˙E/V˙V˙co2 slope) also was measured from rest to 20W in patients with HFpEF. Gas exchange (ventilation, oxygen uptake, and CO2 elimination ) and arterial blood gases were analyzed at rest, twenty watts (20W), and peak exercise. Twenty-three patients with HFpEF and 12 control participants were studied. Research Questionĭo patients with HFpEF develop VDalveolar during exercise? Study Design and Methods Therefore, we tested the hypothesis that VDalveolar would increase during exercise to a greater extent in patients with HFpEF compared with control participants. Patients with heart failure with preserved ejection fraction (HFpEF) exhibit many cardiopulmonary abnormalities that could result in V˙V˙/Q˙Q˙ mismatch, manifesting as an increase in alveolar dead space (VDalveolar) during exercise. ![]() Source: This abstract has been sourced from NZ Respiratory Research Review Issue 207 NZ Adolescent and Adult Asthma Guidelines 2020.COVID-19 and its link to E-cigarette use.Vaping in New Zealand Youth Survey 2021. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |