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Biomedical subjects

S Gavrilescu

Publications and source records attributed to S Gavrilescu.

At least 19 recordsLinked to original sources
PubMed1991

[Acute cholangiocholecystitis].

In analysis of a group of 48 patients, the authors describe an entity they call acute cholangio-cholecystitis (or acute cholecystitis of choledochal origin) and define it by 4 obligatory criteria: 1. vesicular lesion of acute cholecystitis type; 2. the obstruction of the main bile duct in the direction of its junction with the cystic duct; 3. free duct communication between the gallbladder and the main bile ducts; 4. fluid content (purulent gallbladder) found identical over the whole biliary territory (the gallbladder the main bile ducts the intrahepatic bile ducts). This entity represents 7.6% of the total of acute cholecystitis and was met in 2.8% of the total of the interventions for the main bile ducts obstruction. The deficient biological background of the patients (60% over 60 years old), and other seriousness factors--vesicular destructive lesions associated with biliary peritonitis (7/48), the existence of the duct obstruction, usually calculous (42/48), but also hydatic (3/48) or tumoural (3/48), the multitude and seriousness of the associated lesions are emphasized. The surgery, performed in over 80% emergent cases, was directed to the decomprimation of the main biliary axis to which the increase of the gangrenous cholecyst, treatment of the duct obstructive factor, repair of the internal biliary fistulas, treatment of the consequent peritonitis were added. The results, very often good (71%), were shadowed by a series of complications (29%) which ended in deaths (14.5%). The paper pleads for the early surgery of the lithiasic biliary disease, before the appearance of the inevitable complications.

Acute Disease↗
PubMed1979

Complete atrio-ventricular block due to cardiac echinococcosis.

A 33-year-old man presented a complete antrio-ventricular block due to two hydatid cysts localized in the interventricular septum and interrupting both bundle branches. Intracardiac rupture within the right ventricle led to extensive pulmonary hydatidosis and death.

Adult↗
PubMed1977

Accelerated atrioventricular conduction during acute myocardial infarction.

Three cases are described in which accelerated atrioventricular conduction occurred during an acute myocardial infarction. The first patient, an 82-year-old woman, developed a WPW syndrome suggesting posterior right ventricular preexcitation, a pattern which persisted for four months until her death. An accessory bundle was found on autopsy. Fibrotic changes, associated with acute lesions (hemorrhage, polymorphonuclear infiltrates) were present in the atrioventricular node and His-Purkinje system. Two men, of 47 and 74 years, developed a short PR interval associated with supraventricular tachycardia during the course of an acute myocardial infarction. The PR interval returned to its initial value in one case and remained unchanged for three months in the other. Accessory atrioventricular connections which became functional during myocardial ischemia may explain the various electrocardiographic patterns of preexcitation.

Aged↗
PubMed1977

Parasystole associated with fixed coupling ventricular ectopic activity.

In 5 patients ventricular parasystole and fixed coupling ectopic beats were recorded. In two cases ventricular parasystole and bigeminism acted intermittently. In one case the spontaneous transition from ventricular parasystole into parasystolic tachycardia with "reverse coupling" and finally to ventricular bigeminy could be illustrated. In all these cases ventricular parasystole and fixed coupling extrasystolic activity seems to be a close related mechanism. In other two cases there was a mathematical relationship between the sinus and parasystolic discharge rate which explained the periodic fixed coupling of ectopic beats. In one of these cases His bundle electrography was helpful in documenting the ventricular origin of ectopic beats.

Adolescent↗
PubMed1976

Monophasic action potentials of right atrium and electrophysiological properties of AV conducting system in patients with hypothyroidism.

In 12 patients with manifest hypothyroidism right atrial monophasic action potentials showed a significant prolongation in comparison with data from normal or euthyroid patients. Atrial effective refractory periods were also significantly prolonged. After thyroid treatment the monophasic action potential duration and the effective refractory period of the right atrium were within normal ranges. In 6 hypothyroid patients studies of AV conduction with the aid of His bundle electrography and atrial pacing showed a supraHisian conduction delay which was manifest in one case and latent in another two. InfraHisian conduction delay was encountered in 2 cases.

Action Potentials↗
PubMed1976

Ventricular activity during atrial fibrillation. Studies with His bundle electrography.

His bundle electrograms were recorded in 12 patients with atrial fibrillation. In all cases but one, the dominant rhythm was atrial fibrillation. In 1 case the dominant rhythm was fascicular tachycardia due probably to digitalis overdosage. However ventricular, fascicular and junctional beats could be often recognized on His bundle tracings, even when QRS configuration was similar to supraventricular conducted beats due to atrial fibrillation. In the patients in whom sinus rhythm occurred, the H-V interval was unchanged. Although it is admitted that during atrial fibrillation the zone of concealment of A-V conduction is in the A-V nodal area, concealed penetration of atrial impulses in the fascicular system may be encountered in patients not treated with digitalis.

Adult↗
PubMed1976

Recurrent ventricular tachycardia due to reentry within the bundle branches.

A case of recurrent ventricular paroxysmal tachycardia in a young man without obvious heart disease is described. Posttachycardiac T-wave inversion followed the arrhythmic episodes. Programmed stimulation of the heart in association with intracardiac recordings showed evidence in favor of reentry within the bundle branches and its divisions during tachycardia. A critical prolongation of the H2-V3 interval preceded each paroxysm of tachycardia.

Adolescent↗
PubMed1976

Monophasic action potentials of the right atrium during atrial fibrillation in man.

In 28 patients with established atrial fibrillation [AF], right atrial monophasic action potentials [MAP] were recorded before DC shock. A close correlation was found between the atrial rate and MAP duration of the fibrillatory waves [FW]. The duration of MAPs ranged between 1 and 6 mV. The atrial rate ranged between 311 and 578 per minute, the highest rates were found during lone AF. In two patients in whom cardioversion failed, a prolongation of right atrial MAP duration of the FW was noted. The efficacy of DC shock and the maintenance of sinus rhythm after cardioversion was greater in patients with AF having a slower rate and a longer MAP.

Adult↗
PubMed1976

Bidirectional tachycardia a study of five cases.

Five patients with bidirectional tachycardia due to digitalis toxicity associated with severe organic heart disease were studied. The origin of the abnormal rhythm was established with the aid of His bundle recordings in three cases and by indirect clues in the others two. In three cases the origin of bidirectional tachycardia was suprahisian while in two patients it was infrahisian. In one patient the transition from junctional to ventricular tachycardia could be observed. Bidirectional tachycardia appears to be a complex arrhythmia in which similar electrocardiographic configuration can be due to different mechanism. Digitalis toxicity was often a causal factor.

Aged↗
PubMed1976

Pseudo-retrograde conduction in complete A-V heart block due to ectopic His bundle activity.

A case with complete A-V heart block in whom retrograde P- waves following some of the ventricular complexes were due to an ectopic junctional activity with the characteristics of parasystole is reported. His bundle electrogram showed an infrahisian block. After administration of 1 mg atropine intravenously the retrograde P- waves were detached from the ventricular automatic complexes and an H' deflection preceded each inverted P- wave with an H'-A' interval of 40 msec.

Adult↗