Válvula ou Pulmão?


Stress Echocardiography

The clinical indications for stress echocardiography (SE) in the context of PH-LHD are as follows: severe VHD without symptoms, non-severe VHD with symptoms, and symptomatic non-severe VHD with low flow . Heart rate normally increases two- to three-fold during exercise, contractility three- to four-fold, and systolic blood pressure by ≥ 50%, while systemic vascular resistance decreases. This often serves to reveal symptoms in patients previously considered asymptomatic or, for example, may demonstrate that mitral valve stenosis changes from moderate to severe with activity.

Therefore, SE may be a useful diagnostic tool in selected cases of suspected PH-LHD (pulmonary hypertension related to left heart disease ) leading to recommendations to treat the underlying VHD.

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