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Results for “Atrioventricular Block”

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At least 343 records · Page 19Linked to original sources

PubMed1994

A Ro/SS-A auto-antibody positive mother's infant revealed congenital complete atrioventricular block, followed by insulin dependent diabetes mellitus and multiple organ failure.

We experienced a congenital complete atrioventricular block infant who was born from a Ro/SS-A antibody positive mother. Ro/SS-A antibody was also found in this baby which was presumed to be mediated by the maternal placenta. Temporary cardiac pacing was required at birth and pacemaker implantation was performed at 9 months. At 11 months of age, the baby fell into shock and experienced multiple organ failure because of diabetes mellitus-induced coma. The association between congenital complete heart block and the Ro/SS-A antibody is well known. However, the accompaniment of insulin-dependent diabetes mellitus has not been reported previously. As the Ro/SS-A antigen appears in the cytoplasm of many tissues, the possibility of an association between Ro/SS-A antibody and diabetes mellitus is difficult to deny. We report this rare case to draw attention to the possibility that babies who are born from an Ro/SS-A antibody positive mother may develop diabetes mellitus as well as congenital complete heart block.

Adult↗

PubMed2002

Haemodynamics during a complete exercise induced atrioventricular block.

The case is reported of an athlete who, during an exercise test, had a complete atrioventricular block without symptoms of cardiac output failure. Heart rate, stroke index, cardiac index, and myocardial contractility were monitored during the episode by an impedance cardiograph. The most important findings of this report are the continuous increase in stroke index, which compensated for the lack of heart rate response, and the normal cardiac index values achieved during the exercise. This stroke index response was mainly due to an increase in myocardial contractility.

Adult↗

PubMed1979

2:1 atrioventricular block associated with mitral leaflet prolapse.

A case of mitral leaflet prolapse associated with 2:1 atrioventricular block is described. A His-bundle electrogram demonstrated an infra-Hisian level of block. Bradyarrhythmias and sudden death in this syndrome are briefly reviewed.

Electrocardiography↗

PubMed1998

Congenital complete atrioventricular block in an infant with long QT syndrome.

A three months old patient with congenital complete atrioventricular block and prolonged QT interval syndrome is presented. Before admission she had had two syncopal attacks. During hospitalization she had an episode of torsade de pointes which was followed by ventricular fibrillation. After a successful cardiopulmonary resuscitation, a permanent epicardial ventricular pacemaker was implanted and she was discharged on propranolol therapy. She is now free of symptoms and doing well, 16 months after discharge.

Adrenergic beta-Antagonists↗

PubMed1990

[Atrioventricular block in Kearns-Sayre syndrome].

We report a case of a 17-year-old woman with Kearns-Sayre Syndrome who developed a high degree atrioventricular block. She had intraventricular conduction disturbances with normal atrioventricular conduction in previous electrocardiograms. The diagnosis criteria of this rare syndrome are commented on, and we describe the electrophysiological features, prognostic and treatment that atrioventricular conduction disturbances produce in these patients. We emphasize the necessary collaboration between neurologists and cardiologists in the early recognition of the conduction disturbances for implanting a prophylactic pacemaker.

Adolescent↗

PubMed2006

Potential additional indicators for pacemaker requirement in isolated congenital atrioventricular block.

Low heart rate is the predominantly used indication for pacemaker intervention in patients with isolated congenital atrioventricular block (CAVB). The aim of this study was to compare the difference in heart rates recorded with ECG and Holter monitoring between paced (PM) and nonpaced (NPM) patients with isolated CAVB before pacemaker implantation to identify additional predictors for future PM need. Retrospective evaluation of atrial and ventricular rates (electrocardiography) and minimal and maximal (Holter) heart rates in 129 CAVB patients prior to PM implantation (n = 93) was performed, and results are expressed in V adjusted for age and sex. The average V score for the atrial rate was 0.51 (n = 50) in the PM group and 0.60 (n = 22) in the NPM group (not-significant). The average z score for the ventricular (average) rate was -0.91 (n = 83) in the PM group and -0.93 (n = 33) in the NPM group (not-significant). Minimal heart rate was -0.94 (n = 61) in the PM group and -0.86 (n = 25) in the NPM group (not significant). Maximal heart rate was -0.96 (n = 61) in the PM group and -0.95 (n = 26) in the NPM group (not significant). Initial recordings of the average heart rate and the minimal and maximal heart rate recorded during Holter monitoring do not seem to predict future pacemaker need in patients with CAVB. Studies with exercise stress tests are needed to confirm these findings.

Cardiac Pacing, Artificial↗

PubMed1989

Atrioventricular block in accidental hypothermia--a case report.

The finding of second-degree and high-grade atrioventricular block in a patient with severe accidental hypothermia is described. Additional findings included atrial fibrillation, severe sinus bradycardia, and prominent J (Osborn) waves. This case represents, to the authors' knowledge, the first report of advanced spontaneous AV block not induced by atrial pacing in severe accidental hypothermia. Reversal of the block, and other characteristic changes, suggest a relationship to low temperature.

Aged↗

PubMed1955