vasomotorisia

Vasomotorisia is a term occasionally used to describe a proposed syndrome of dysregulated vascular tone mediated by the autonomic nervous system, resulting in episodic changes in skin perfusion. It is not part of major medical classifications and its precise definition varies in the literature.

Clinical features commonly include sudden episodes of flushing or pallor, dizziness or lightheadedness, palpitations, sweating, headaches, and sometimes near-fainting or syncope. Triggers may include heat, meals, stress, standing, and rapid changes in posture. The episodes are typically transient and may occur intermittently over weeks to months.

Pathophysiology is not well defined. Proposed mechanisms involve autonomic nervous system imbalance and endothelial factors that influence vasodilation or vasoconstriction. Some theories consider abnormal release of vasodilators or heightened sensitivity of vascular smooth muscle, though evidence remains limited and non-specific.

Diagnosis is largely clinical and by exclusion. There is no validated biomarker for vasomotorisia. Evaluation may include autonomic function testing to assess heart rate and blood pressure responses and laboratory studies to rule out alternative causes such as pheochromocytoma, thyroid disease, anemia, or other autonomic disorders.

Management focuses on symptom control and trigger avoidance. Nonpharmacologic measures include adequate hydration, salt intake as advised, slow position changes, physical conditioning, and compression garments where appropriate. Pharmacologic options cited in related autonomic disorders are used variably and evidence for vasomotorisia-specific efficacy is limited; treatment is individualized.

Prognosis and epidemiology are uncertain due to limited data. The term vasomotorisia is not widely used in core medical references, and further research is needed to establish its validity, diagnostic criteria, and best practices.