Significant unfavorable geometrical changes in ascending aorta despite stable diameter at follow-up.

Objective: The clinical importance of following up on the ascending aortic diameter lies in the fundamental presumption that wall pathology eventually manifests as a change in shape. However, the diameter describes the vessel locally, and the 55 mm criterion fails to prevent most dissections. We hypothesized that geometric changes across the ascending aorta are not necessarily imprinted on its diameter; i.

Injecting a ventricular tachycardia into the heart-Α unique case report.

Introduction: A 52-year-old woman presented with a complex ventricular arrhythmia in an intraoperative context, during kyphoplasty for an osteoporotic fracture of a lumbar vertebra. The subject showed no indications of a previous cardiovascular condition.

Methods And Results: Causes of arrhythmias associated with the procedure were excluded.

Extended law of laplace for measurement of the cloverleaf anatomy of the aortic root.

The cross-sectional shape of the aortic root is cloverleaf, not circular, raising controversy regarding how best to measure its radiographic "diameter" for aortic event prediction. We mathematically extended the law of Laplace to estimate aortic wall stress within this cloverleaf region, simultaneously identifying a new metric of aortic root dimension that can be applied to clinical measurement of the aortic root and sinuses of Valsalva on clinical computerized tomographic scans. Enforcing equilibrium between blood pressure and wall stress, finite element computations were performed to evaluate the mathematical derivation.

Prolonged complete atrioventricular block due to neostigmine and amiodarone interaction in an amyloidosis patient with left main dissection and postoperative intestinal pseudo-obstruction.

Cardiac amyloidosis has been strongly associated with postoperative intractable circulatory failure, and intestinal amyloidosis could lead to intestinal pseudo-obstruction. The latter can be treated with neostigmine, which is notorious for its brief bradyarrhythmic complications. The amyloidosis patient presented herein, suffered an iatrogenic left main dissection, failure of bailout stenting and finally underwent urgent surgery.

Debranching-first and proximal arch replacement for an innominate artery aneurysm: a case study.

The aneurysms of the innominate artery represent a rare form of aneurysmal disease. Management in an early elective basis is recommended due to the risk of stroke and rupture. Treatment options include open surgery, which is the gold standard, and endovascular repair.

Thoracoabdominal Resection of Mucormycosis Lesions in a Leukemic Patient.

Mucormycosis is a rare fungal infection that poses a severe threat to immunocompromised patients. In the case presented herein, a 56-year-old leukemic patient, who was treated with amphotericin B and posaconazole, was scheduled for surgical resection of mucormycosis lesions that had spread to the thorax and abdomen. Surgery was aggressive and the resection involved the left lateral thoracoabdominal wall, 2 ribs, the left diaphragm, and the spleen.

Pneumorachis associated with persistent tachycardia after blunt thoracic trauma.

Pneumorachis, or intraspinal air, can be a rare result of blunt thoracic trauma. We report the case of a 40-year-old man with multiple injuries and pneumorachis associated with persistent tachycardia. As factors that increase heart rate were gradually ruled out, intraspinal air was considered the potential culprit.

Subtle-discrete aortic dissection without bulging of the aortic wall. A rare but lethal lesion.

We report a subtle-discrete aortic dissection, without bulging of the aortic wall or aneurysm or valve pathology or periaortic effusion, which resulted in a lethal cardiac tamponade to a 35-year-old male.

Study of shape memory alloy fibers for the development of artificial myocardium.

Introduction: Circulatory support devices are employed to treat heart failure. Such a device could be made from shape memory alloy (SMA) fibers. These Ni-Ti fibers contract when electric current flows through them, thus resembling artificial muscles.