During severe asthma, paradoxic pulse may result from increased impedance to left ventricular ejection, mechanical impairment of left ventricular filling by ventricular interdependence or decreased pulmonary venous return augmented by hypovolemia. We studied the effect of reversible blood volume expansion by MAST inflation during severe attacks of asthma. Ten patients with clinically detectable...

BACKGROUND In patients with coronary artery disease, stress-redistribution-reinjection thallium scintigraphy provides important information regarding myocardial ischemia and viability. Although both reversible and mild-to-moderate irreversible thallium defects retain metabolically active, viable myocardium, we hypothesized that stress-induced reversible thallium defects may better differentiate...

Stress-induced cardiomyopathy is caused by emotional or physical stressors and mimics acute myocardial infarction, though Stress-induced cardiomyopathy is characterized by reversible left ventricular (LV) apical ballooning in the absence of significant coronary artery disease. We describe a 51-year-old male who underwent left upper lobectomy for non-small cell lung cancer, and during which card...

Takotsubo cardiomyopathy (TCM), also known as stress-induced cardiomyopathy or transient left ventricular apical ballooning syndrome, is characterized by reversible left ventricular (LV) dysfunction that is frequently precipitated by a stressful event. LV thrombus is a recognized complication of TCM; however, the clinical significance and therapy of LV thrombus in TCM remain unclear. Here we re...

A high cardiac output state has been an infrequent but previously reversible cause of heart failure in patients with hemodialysis fistulas. A patient with two proximal upper extremity fistulas was found to have progressive depression in his left ventricular function and a high output state. His symptoms did not respond to the removal of the most prominent fistula, suggesting that chronic volume...

Hypocalcemia is a relatively uncommon but reversible cause of left ventricular dysfunction in infants and children. A 30-day-old boy with idiopathic hypocalcemia presented with congestive heart failure and convulsive seizures. He had no evidence of underlying cardiac disease. The cardiac failure responded to calcium therapy. It is suggested that hypocalcemia should be considered as a possible c...

‎let $mathcal{a}$ be a unital banach algebra‎, ‎$mathcal{m}$ be a left $mathcal{a}$-module‎, ‎and $w$ in $mathcal{z}(mathcal{a})$ be a left separating point of $mathcal{m}$‎. ‎we show that if $mathcal{m}$ is a unital left $mathcal{a}$-module and $delta$ is a linear mapping from $mathcal{a}$ into $mathcal{m}$‎, ‎then the following four conditions are equivalent‎: ‎(i) $delta$ is a jordan left de...

A 37-year-old woman, previously known to have severe airplane phobia, develops panic disorder-like symptoms in the second hour of flight. After a while, disorder was accompanied by chest pain and syncope. An ECG showed no abnormalities. Transthoracic echocardiogram demonstrated decreased left ventricular ejection fraction (EF: 30), large apical akinesis, characteristic regional wall motion abno...

apical ballooning syndrome (abs) is a reversible cardiomyopathy with presentation mimicking an acute coronary syndrome. so in clinical practice, it is essential to consider it in the differential diagnosis of patients presenting with chest pain, especially in postmenopausal women. coronary angiography is usually indicated to achieve a proper diagnosis. typically, patients do not have significan...

  Introduction: We investigated the difference in left ventricular ejection fraction (LVEF) and end-systolic volume(ESV) measured by gated myocardial perfusion SPECT (GSPECT) in the post-dipyridamole stress and rest periods, and compared the results with the perfusion patterns found in the conventional non-gated tomograms. Methods: 297 consecutive patients were studie...