Inspiratory muscle function, hemodynamic parameters and dyspnea in patients with mitral valve stenosis
| Autor: | Palacios M, Sylvia, Pérez P, Osvaldo, Pino R, Jorge, Carrasco, Gonzalo, Fasce, Eduardo, Olmos C, Alfonso |
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| Jazyk: | Spanish; Castilian |
| Rok vydání: | 2006 |
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| Zdroj: | REVISTA MEDICA DE CHILE Artículos CONICYT CONICYT Chile instacron:CONICYT Revista médica de Chile, Volume: 134, Issue: 5, Pages: 556-564, Published: MAY 2006 |
| Popis: | Background: The mechanism involved in dyspnea in patients with mitral valve stenosis (MS) is not completely understood. Aim: To evaluate in patients with MS, changes in hemodynamic parameters during the assessment of inspiratory muscle endurance (IME) and the relationship between IME, hemodynamics and dyspnea. Subjects and methods: We studied 13 patients (9 in NYHA class II and 4 in class III). Endurance was evaluated using a two minute incremental threshold loading test, to obtain the maximal sustainable inspiratory pressure (SIP), and maximal inspiratory load (MIL). During the test, cardiac output (CO), mean pulmonary and capillary pressures (PAP and PCP, respectively), were evaluated. Results: Compared to six normal subjects, MS patients had reduced SIP and MIL (p |
| Databáze: | OpenAIRE |
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