2. Anesthesiology resuscitation department, Polytechnic University Hospital La Fe. Valencia, Spain.
3. Critical care medicine department, Polytechnic University Hospital La Fe. Valencia, Spain.
4. Pulmonology department, Polytechnic University Hospital La Fe. Valencia, Spain.
5. Cardiac Imaging Unit, Cardiology department, Polytechnic University Hospital La Fe. Valencia, Spain.
Background and purpose: Right ventricular dysfunction (RVD) has been described as an independent factor for morbidity and/ or mortality in various nosological entities. However, there are no data on its true prevalence in hospital environments. The present study aims to discover the prevalence of this pathology at a specialized hospital center, as well as the characteristics of the patients affected.
Methods and results: An observational and prospective study analyzing 7636 echocardiographs performed consecutively over a 20-month period. An etiological classification into four categories (cardiac cause, pulmonary thromboembolism, pneumopathy and idiopathic pulmonary hypertension) was proposed. 442 RVD cases were detected and classified, which is 5.78% of the examinations performed. Most of the cases (87.56%) presented prior cardiopathy as the origin of RVD. Only 12.44% presented a non-cardiac cause for RVD. Differences were detected in the demographic and echocardiographic characteristics of patients, depending on the etiology of the RVD.
Conclusions: With a prevalence of 5.78% of all the echocardiographs performed in a specialized hospital, the significance of RVD is confirmed. The most frequent etiological factor for this disease is the existence of prior heart disease.
Keywords: Heart failure, right ventricular dysfunction, epidemiologic methods, congenital cardiopathy