The prevalence and characteristics of metabolic syndrome in patients with vertigo.

Objectives/hypothesis: Metabolic syndrome (MetS) is a condition that increases the risk of coronary artery disease and cerebral infarction. We determined the prevalence of MetS in vertigo patients and clinically investigated the association between MetS and vertigo.

Study Design: Case-control study.

Osteoporosis as a risk factor for the recurrence of benign paroxysmal positional vertigo.

Objectives/hypothesis: Benign paroxysmal positional vertigo (BPPV) frequently occurs in females over 50 years old, suggesting that a postmenopausal decrease in estrogen secretion might be involved in its onset. An estrogen deficiency is generally known to cause osteoporosis through a reduction in bone mass. This study was designed to investigate a clinical association between idiopathic BPPV and osteoporosis.

[Clinical analysis of metabolic syndrome in vertiginous diseases].

To explore the relationship between metabolic syndrome and vertigo, we measured waist circumference, plasma glucose, triglycerides and blood pressure in 333 subjects aged 20-79 years with vertigo. We found overall metabolic syndrome prevalence defined by Japanese diagnostic criteria to be 13.2%, similar to that in other national surveys by the Japanese Ministry of Health, Labour and Welfare.