Mejoría de la función muscular inspiratoria en pacientes con estenosis mitral cerrada después de valvuloplastia mitral percutánea: comunicación preliminar

Background: It has been proved that there is an inspiratory muscle dysfunction in mitral stenosis; Although its causes still remain unknown. Aim: to evaluate the effect of percutaneous balloon mitral valvuloplasty (PMV) on inspiratory muscle performance (IMP) in patients with mitral stenosis (mitral...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Palacios M,Sylvia, Pérez P,Osvaldo, Flores A,Guillermo, Olmos C,Alfonso
Lenguaje:Spanish / Castilian
Publicado: Sociedad Médica de Santiago 2000
Materias:
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872000000500003
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:scielo:S0034-98872000000500003
record_format dspace
spelling oai:scielo:S0034-988720000005000032004-06-22Mejoría de la función muscular inspiratoria en pacientes con estenosis mitral cerrada después de valvuloplastia mitral percutánea: comunicación preliminarPalacios M,SylviaPérez P,OsvaldoFlores A,GuillermoOlmos C,Alfonso Mitral valve stenosis Muscle weakness Respiratory muscles Ventricular dysfunction Background: It has been proved that there is an inspiratory muscle dysfunction in mitral stenosis; Although its causes still remain unknown. Aim: to evaluate the effect of percutaneous balloon mitral valvuloplasty (PMV) on inspiratory muscle performance (IMP) in patients with mitral stenosis (mitral area < 1.5 cm²). Patients and methods: We studied IMP in 8 patients (35 ± 10 years) before and 3 months after successful PMV. Inspiratory muscle strength was studied by measuring maximal statistical inspiratory mouth pressure (MIP). Endurance was evaluated using a two minute incremental threshold loading test in order to obtain the maximal sustainable inspiratory pressure (SIP), with the maximal sustainable load (MSL) the patients could sustain for 2 minutes. Results: Mitral valvuloplasty increased mean cardiac index from 3.1 ± 0.3 to 4.15 ± 0.3 l/min/m² (p<0.01), and significantly decreased mean pulmonary and capillary pressures. The MIP value(118 ± 6 cmH2O), similar to that of normal group, increased to 137 ± 7 cmH2O (p<0.01). SIP and maximal sustainable load were 52 ± 3 cmH2O and 294 ± 29 g respectively, lower than normal subjects (p<0.05) They increased after PMV to 80 ± 3 cmH2O and 463 ± 26 g respectively (p<0.001). Conclusions: PMV improved inspiratory muscle function in patients with severe mitral stenosis, probably secondary to a decrease work of breath and improvement of ventricular function. (Rev Méd Chile 2000; 128: 467-74)info:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.128 n.5 20002000-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872000000500003es10.4067/S0034-98872000000500003
institution Scielo Chile
collection Scielo Chile
language Spanish / Castilian
topic Mitral valve stenosis
Muscle weakness
Respiratory muscles
Ventricular dysfunction
spellingShingle Mitral valve stenosis
Muscle weakness
Respiratory muscles
Ventricular dysfunction
Palacios M,Sylvia
Pérez P,Osvaldo
Flores A,Guillermo
Olmos C,Alfonso
Mejoría de la función muscular inspiratoria en pacientes con estenosis mitral cerrada después de valvuloplastia mitral percutánea: comunicación preliminar
description Background: It has been proved that there is an inspiratory muscle dysfunction in mitral stenosis; Although its causes still remain unknown. Aim: to evaluate the effect of percutaneous balloon mitral valvuloplasty (PMV) on inspiratory muscle performance (IMP) in patients with mitral stenosis (mitral area < 1.5 cm²). Patients and methods: We studied IMP in 8 patients (35 ± 10 years) before and 3 months after successful PMV. Inspiratory muscle strength was studied by measuring maximal statistical inspiratory mouth pressure (MIP). Endurance was evaluated using a two minute incremental threshold loading test in order to obtain the maximal sustainable inspiratory pressure (SIP), with the maximal sustainable load (MSL) the patients could sustain for 2 minutes. Results: Mitral valvuloplasty increased mean cardiac index from 3.1 ± 0.3 to 4.15 ± 0.3 l/min/m² (p<0.01), and significantly decreased mean pulmonary and capillary pressures. The MIP value(118 ± 6 cmH2O), similar to that of normal group, increased to 137 ± 7 cmH2O (p<0.01). SIP and maximal sustainable load were 52 ± 3 cmH2O and 294 ± 29 g respectively, lower than normal subjects (p<0.05) They increased after PMV to 80 ± 3 cmH2O and 463 ± 26 g respectively (p<0.001). Conclusions: PMV improved inspiratory muscle function in patients with severe mitral stenosis, probably secondary to a decrease work of breath and improvement of ventricular function. (Rev Méd Chile 2000; 128: 467-74)
author Palacios M,Sylvia
Pérez P,Osvaldo
Flores A,Guillermo
Olmos C,Alfonso
author_facet Palacios M,Sylvia
Pérez P,Osvaldo
Flores A,Guillermo
Olmos C,Alfonso
author_sort Palacios M,Sylvia
title Mejoría de la función muscular inspiratoria en pacientes con estenosis mitral cerrada después de valvuloplastia mitral percutánea: comunicación preliminar
title_short Mejoría de la función muscular inspiratoria en pacientes con estenosis mitral cerrada después de valvuloplastia mitral percutánea: comunicación preliminar
title_full Mejoría de la función muscular inspiratoria en pacientes con estenosis mitral cerrada después de valvuloplastia mitral percutánea: comunicación preliminar
title_fullStr Mejoría de la función muscular inspiratoria en pacientes con estenosis mitral cerrada después de valvuloplastia mitral percutánea: comunicación preliminar
title_full_unstemmed Mejoría de la función muscular inspiratoria en pacientes con estenosis mitral cerrada después de valvuloplastia mitral percutánea: comunicación preliminar
title_sort mejoría de la función muscular inspiratoria en pacientes con estenosis mitral cerrada después de valvuloplastia mitral percutánea: comunicación preliminar
publisher Sociedad Médica de Santiago
publishDate 2000
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872000000500003
work_keys_str_mv AT palaciosmsylvia mejoriadelafuncionmuscularinspiratoriaenpacientesconestenosismitralcerradadespuesdevalvuloplastiamitralpercutaneacomunicacionpreliminar
AT perezposvaldo mejoriadelafuncionmuscularinspiratoriaenpacientesconestenosismitralcerradadespuesdevalvuloplastiamitralpercutaneacomunicacionpreliminar
AT floresaguillermo mejoriadelafuncionmuscularinspiratoriaenpacientesconestenosismitralcerradadespuesdevalvuloplastiamitralpercutaneacomunicacionpreliminar
AT olmoscalfonso mejoriadelafuncionmuscularinspiratoriaenpacientesconestenosismitralcerradadespuesdevalvuloplastiamitralpercutaneacomunicacionpreliminar
_version_ 1718435916244058112