Table 2

Haemodynamic variables before and after percutaneous mitral commissurotomy

VariableBeforeAfterp value
Mean pulmonary artery pressure (mm Hg)25.1 (7.1)19.1 (5.8)<0.001
Left atrial pressure (mm Hg)16.2 (5.2)11.9 (5.1)<0.001
LVEDP (mm Hg)7.6 (4.5)6.4 (4.1)NS
Mitral valve area (cm2)1.38 (0.38)1.75 (0.42)<0.001
Total pulmonary resistance (dyne.s.cm−5.m2)464 (147)358 (102)<0.002
Pulmonary vascular resistance (dyne.s.cm−5.m2)237 (103)207 (76)NS
Cardiac index (l/min.m2)3.05 (0.53)2.97 (0.54)NS
Heart rate (beats/min)78 (16)74 (13)NS
Mean arterial pressure (mm Hg)91 (11)89 (10)NS
Systemic vascular resistance (dyne.s.cm−5.m2)2423 (399)2557 (585)NS
  • Values are means (SD). LVEDP, left ventricular end diastolic pressure.