Correlation between COPD and pulmonary hypertension

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Chronic obstructive pulmonary disease (COPD) is in up to 90 % of all cases caused bysmoking. COPD often has negative effects on circulation, effects that first and foremost can beobserved as respiratory insufficiency. Reduced function of the right ventricle of the heart iscommon in patients suffering from chronic obstructive pulmonary disease, especially if theyalso have hypoxemi; insufficient levels of oxygen in blood or tissue. The incidence of thiscardiac complication reduces the survival time. It is possible in chronic obstructive pulmonarydisease that the pressure in the pulmonary circulation gradually increases resulting inpulmonary hypertension followed by a slow adaptation of the right ventricle by hypertrophy ofthe myocardium.To investigate a correlation between COPD and pulmonary hypertension COPD patientswere subjected to spirometry and ultrasound on heart.Of 14 examined patients 5 had developed pulmonary hypertension. A correlation betweenobstruction in the COPD- patients and an increase in left ventricular diameter was found.DLCO (diffusion capacity) of the lungs is directly connected to PA (pulmonary arterialpressure). The lower DLCO, the higher risk to develop pulmonary hypertension. However, we...