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Biomedical subjects

R Haïat

Publications and source records attributed to R Haïat.

At least 55 records · Page 3Linked to original sources
PubMed1982

[Rupture of a post-infarct ventricular aneurysm. Apropos of 3 cases cured surgically].

The authors report 3 cases of post-infarction left ventricular aneurysm with localised rupture into the pericardium. The patients (3 men aged 54, 58 and 67 years old) had left ventricular aneurysms (2 anterior, I posterior) which ruptured early, between the second and tenth week. All presented with cardiogenic shock. The diagnosis was made by 2D echocardiography (I case) or by pericardial aspiration and angiography (2 cases). Good results were obtained by surgical evacuation of the hemopericardium and resection of the ventricular aneurysm with a follow-up of 3 to 12 months. The rarity of these cases is underlined: only three other similar cases appear to have been previously reported.

Aged↗
PubMed1981

[Doppler velocimetric study of the arteries involved in erection. A new diagnostic approach to sexual impotence of arterial origin].

With the aim of diagnosing possible arterial causes of sexual impotence, a Doppler study of the arteries of erection (dorsal arteries of the penis, left and right cavernous arteries) was performed according to an original protocol on 132 patients with cardiovascular disease. The Doppler study included recording of mean arterial flow and the measurement of the systolic pressure of the arteries of erection with a specially designed cuff connected to a manometer. In 60 out of 132 cases the investigation demonstrated an arterial component in the cause of the impotence and was able to determine whether the disease was uni- or bilateral. The disturbance of penile irrigation was constantly associated with a lengthening of the decceleration phase of the arterial flow curve. Aortography was carried out in 46 of these 60 cases and confirmed the results by showing arterial disease and its location: aortic bifurcation (33 cases) ischio-perineal trunk and/or the perineal branch of the hypogastric artery (7 cases), hypogastric artery (6 cases). Reliable and atraumatic, our protocol allows a precise diagnostic of possible arterial components in sexual impotence; it should therefore be an integral part of investigation of impotence of recent onset.

Adult↗
PubMed1981

[Pseudoventricular tachycardia linked to a reciprocal antidromic rhythm from Mahaim's fibers].

A 24 year old female presented with paroxysmal pseudo-ventricular tachycardia with wide QRS complexes and complete atrioventricular dissociation. Electrophysiological studies showed a junctional tachycardia with an antidromic reciprocating rhythm. The activation involved Mahaïm nodo-ventricular fibres in the anterograde direction, the nodo-hisian pathway being the retrograde limb of the reentry pathway. The main point of interest of this case was the presence of complete atrioventricular dissociation during tachycardia, the atria remaining in sinus rhythm with the possibility of sinus capture formally excluding the diagnosis of a paraseptal Kent bundle. This reentry mechanism has been previously described and constitutes a differential diagnosis of ventricular tachycardia.

Adult↗
PubMed1980

[Electroplethysmographic study of nitroglycerin microcapsule preparation at two concentrations: 2.5 and 7.5 mg (author's transl)].

In a double-blind, cross-over study involving 15 subjects (10 healthy volunteers and 5 patients with chronic coronary disease) the authors have compared the activity of two nitroglycerin microcapsule preparations containing 2.5 and 7.5 mg respectively. The hemodynamic effects were assessed by electroplethysmography, which is based on variations of impedance in the precordial area. The method records plethysmographic changes in the aorta and measures parameters exploring ventricular stroke. Both concentrations were found to be active. The effects lasted about 1 to 3 hours with the 2.5 mg preparation and more than 4 hours with the 7.5 mg preparation. The response to the 7.5 mg dose was approximately 50% greater than that to the 2.5 mg dose. These findings were supported by the occurence of headaches of six hours duration in 3 out of the 10 healthy subjects.

Adult↗
PubMed1976

[The exercise electrocardiogram after the acute phase of myocardial infection. Analysis of 100 cases].

A study was made of the effort electrocardiogram (ECG) of 100 patients who had had a myocardial infarction and correlated in 46 cases with findings at coronography. Angina occurred in 38 cases. The ECG remained stable in 17 cases and showed changes in 83. In 60 patients, in those leads with pathological Q waves, isolated T wave changes (15 cases), ST elevation (43 cases) or ST depression were seen. In 17 cases there was isolated ST depression in leads free of any signs of infarction. In 6 cases alterations in rhythm or conduction were seen.

Angina Pectoris↗
PubMed1975

Transient ST segment elevation occurring without anginal pain. Correlations with Prinzmetal's angina.

Two cases presenting with episodes of marked ST segment elevation occurring with, but most often without, anginal pain are reported. The changes were recorded through continuous ECG monitoring during Prinzmetal's angina and in the course of myocardial infarction. Such transient asymptomatic ECG abnormalities reveal silent acute myocardial ischemia and are often unrecognized. However, they may lead to severe arrhythmias or myocardial infarction, and sudden deaths occurring in the course of ischemic heart disease are likely to be explained on this basis. Transient episodes of silent ST segment elevation similar to those occurring in Prinztal's angina have been reported in various circumstances. They bring into discussion the delimitations of variant angina pectoris.

Aged↗