[Comparison of clinical characteristics between elderly and young patients with bradycardia less than 80,000 beats per 24 hours].

Few researchers have conducted 24-hour total heart beat (THB) studies in patients with bradycardia, and its prevalence and significance in the elderly remain controversial. The aim of this study was to compare of distribution of THB, underlying diseases and effects of medication on THB in inpatients with bradycardia less than 80,000 beats/24 hrs between elderly and young patients. There were 303 Holter monitorings of bradycardia out of 7,687 consecutive monitorings, with only the earliest monitoring registered when duplicating.

A 15-year longitudinal follow-up study of heart rate and heart rate variability in healthy elderly persons.

Background: Few researchers have conducted heart rate (HR) studies in healthy very elderly subjects aged 70 years or older, and there are no longitudinal follow-up studies in this population. The objective of this study was to evaluate long-term changes in HR and heart rate variability (HRV) with aging in healthy elderly persons by means of comparison between two Holter monitor recordings obtained at an interval of 15 years.

Methods: The study population consisted of 15 healthy elderly persons (10 women and 5 men) aged 64 to 80 years (mean 70 +/- 4.

Evidence of three clinical subgroups in patients with dual atrioventricular nodal pathways.

We attempted to test the hypothesis that dual atrioventricular (A-V) nodal pathways with second-degree atrioventricular block (2nd A-V block) present as a different clinical entity from those with A-V nodal reentranttachycardia (AVNRT). By evaluation with Holter monitoring (2.9 +/- 2.

[A case of parenchymal pulmonary endometriosis with recurrent chest pain].

A 36-year-old woman was admitted to Nagasaki Citizens Hospital because of severe pleuritic chest pain associated with small amounts of hemoptysis. This episode occurred with the onset of her menses 2 months after a surgical abortion. Chest X-ray revealed a nodular shadow in the left middle lung field.

Pure infundibular pulmonary stenosis induced by radiation therapy--a case report.

A sixty-one-year-old woman developed acquired infundibular pulmonary stenosis eleven years after radiation therapy to the mediastinum. On catheterization, there was a 48 mmHg gradient between the right ventricle and the pulmonary artery. Postmortem examination revealed remarkable narrowing of infundibulum.