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Biomedical subjects

V Nieto

Publications and source records attributed to V Nieto.

8 recordsLinked to original sources
PubMed2001

Benefit of pacing and beta-blockers in idiopathic repetitive polymorphic ventricular tachycardia.

An 18-year-old woman presented with recurrent exercise-induced syncopal episodes and severe systolic dysfunction. ECG monitoring disclosed repetitive polymorphic ventricular complexes, paroxysms of bidirectional ventricular tachycardia, and nonsustained bursts of slow polymorphic ventricular tachycardia that increased in length and rate during exercise. Ventricular arrhythmias were refractory to medical treatment, which included verapamil and beta-blockers. Addition of permanent atrial pacing to beta-blocker therapy suppressed the arrhythmias and reversed systolic impairment in the following months.

Adolescent↗
PubMed2001

Dynamic intraventricular obstruction in acute myocardial infarction.

Transient left ventricular dynamic obstruction (TLVO) is an infrequent complication in acute myocardial infarction (AMI). Its hallmark is a new systolic murmur associated with hemodynamic worsening. An echocardiogram is necessary for diagnosis. We report on two cases, both of which had a good outcome. Serial echocardiograms showed that enhanced contractility of the basal left ventricular segments obstructed cardiac ejection by means of mitral valve systolic anterior movement in the left ventricular outflow tract. In both cases, the intraventricular gradient remained for several days and subsequently disappeared. The understanding of this mechanism is useful for management of this clinical problem.

Diagnosis, Differential↗
PubMed1996

Inflammatory extracavitary right atrial mass and pulmonary thromboembolism.

A 40 year old male patient diagnosed as having pulmonary thromboembolism, was found to have a right atrial mass, after being subjected to an echocardiogram, a CT thoracic Scan and magnetic resonance imaging. An intracardiac exploration by cardiopul-monary bypass was performed. The mass was located and excised, but in fact found to be an extracardiac, inflammatory and cavitated mass. The wall of the right atrium was infiltrated due to the inflammatory process. This case illustrates the advantage of echocardiography, followed by surgery, in the clinical diagnosis and also shows how to treat cardiac masses and tumors.

Adult↗