| dc.creator | Palacios M,Sylvia | |
| dc.creator | Pérez P,Osvaldo | |
| dc.creator | Flores A,Guillermo | |
| dc.creator | Olmos C,Alfonso | |
| dc.date | 2000-05-01 | |
| dc.date.accessioned | 2019-11-14T12:58:05Z | |
| dc.date.available | 2019-11-14T12:58:05Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0034-98872000000500003 | |
| dc.identifier.uri | https://revistaschilenas.uchile.cl/handle/2250/118679 | |
| dc.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) | |
| dc.format | text/html | |
| dc.language | es | |
| dc.publisher | Sociedad Médica de Santiago | |
| dc.relation | 10.4067/S0034-98872000000500003 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Revista médica de Chile v.128 n.5 2000 | |
| dc.subject | Mitral valve stenosis | |
| dc.subject | Muscle weakness | |
| dc.subject | Respiratory muscles | |
| dc.subject | Ventricular dysfunction | |
| dc.title | Mejoría de la función muscular inspiratoria en pacientes con estenosis mitral cerrada después de valvuloplastia mitral percutánea: comunicación preliminar | |
