Biomedical subjects

E Pianzola

Publications and source records attributed to E Pianzola.

3 recordsLinked to original sources

PubMedDate not supplied

[Mitral insufficiency after a penetrating thoracic wound. Report of a case].

It is communicated an isolated mytral insufficiency case, secondary to thorax's penetrative wound by steel arm. There are commented the clinic discoveries, phonomechanocardiographic, echocardiographic, haemodynamic and operation results of a unique orifice in the mytral's septal valve with important overflow. When perforation was sutured it was necessary reoperate it in order to suture's dehiscence and valve's substitution by a Bjork-Shilley's prothesis. The patient persists asymptomatic 35 months after intervention.

Acute Disease↗

PubMedDate not supplied

[Comparison between the treadmill exercise test and atrial stimulation with measurements of plasma catecholamines in patients with angina pectoris].

The assessment of atrial pacing (AP), in relation to the electrocardiographic treadmill test (ETT), was carried out in 22 patients with angina pectoris in whom the importance of the adrenergic system was also evaluated. Coronary cineangiography, left ventricular angiography and plasmatic catecholamine determinations were carried out before and after ETT and transvenous AP. All patients with coronary artery obstruction of more than 80% had positive ETT (X2 = 5.2) and 61.5% had positive AP tests (X2 = 5.2) and 61.5% had positive AP tests (X2 = 3.16). Sixty six of those patients without angiographic coronary obstruction had positive ETT and in 55.6% the AP test was also positive. The increase in systolic blood pressure was found to correlate with the increase in plasmatic catecholamine concentrations during ETT but not with AP (p less than 0.001). The electrocardiographic treadmill test has a greater specificity and sensitivity than AP and correlates with the plasmatic catecholamine concentration. Our results suggest that the myocardial ischemia produced by AP is not related to the endogenous output of catecholamines nor to the elevation of blood pressure, but rather it seems to be dependent of a greater imbalance between the cardiac debit supply ratio of oxygen induced exclusively by an increase in heart rate.

Adult↗

PubMedDate not supplied

[Exercise tests in pneumopathy patients].

In this prospective work eleven pneumopathes patients were studied, ten of them with HAP, which were subjected to effort prove in endless band, in order to know the electrocardiographic alterations presented during the exercise. The VO2 máx was determined simultaneously in four patients. In the four, the value of this parameter was found under the normal value, which showed us a poor increase of the cardiac expense for the demands in the exercise. If the effort proves had not been practiced, this fact could not have been known. Related to the electrocardiographic alterations, cellular diastolic depolarization signs (cellular damage), product of the cellular damage, were found. The mechanics of this cellular damage, as well as the one of the poor increase of cardiac expense, are mentionned in the discussion.

Adolescent↗