Hyperventilation Attacks

Hyperventilation as a cause of panic attacks.

Studies on the platelet function of acute febrile mucocutaneous lymph node syndrome and trial of prevention of thrombosis by flurbiprofen. synthesis of thromboxane A2 by platelets from patients with Kawasaki disease. The syndrome characterised by repeated panic attacks has been known by several names, including muscular exhaustion of the heart, neurasthenia, irritable heart, anxiety neurosis, e...

Effects of Hyperventilation Can hyperventilation cause syncope?

Hyperventilation challenge test in panic disorder and depression with panic attacks.

Our aim was to determine whether panic disorder (PD) patients, major depressive patients without panic attacks (MD) and major depressive patients with panic attacks (MDP) respond similarly to hyperventilation challenge tests. We randomly selected 35 PD patients, 33 MDP patients, 27 MD patients and 30 normal volunteers with no family history of anxiety or mood disorder. The patients had not been...

Clinical features of panic patients sensitive to hyperventilation or breath-holding methods for inducing panic attacks.

Our aim was to compare the clinical features of panic disorder (PD) patients sensitive to hyperventilation or breath-holding methods of inducing panic attacks. Eighty-five PD patients were submitted to both a hyperventilation challenge test and a breath-holding test. They were asked to hyperventilate (30 breaths/min) for 4 min and a week later to hold their breath for as long as possible, four ...

Estradiol supplementation suppresses hyperventilation-induced attacks in postmenopausal women with variant angina.

OBJECTIVES We sought to examine whether estradiol (E2) supplementation suppresses anginal attacks in women with variant angina. BACKGROUND Estrogen is known to improve endothelial function. Coronary spasm plays an important role in the pathogenesis of not only variant angina but also ischemic heart disease in general, and endothelial dysfunction seems to be involved in the pathogenesis of cor...