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Biomedical subjects

I Kronzon

Publications and source records attributed to I Kronzon.

At least 289 records · Page 16Linked to original sources
PubMedDate not supplied

Echocardiographic evaluation of the five-chamber heart: a rare congenital coronary anomaly.

Coronary artery fistulas are rare congenital anomalies that usually drain into one of the cardiac chambers or veins. The current patient was found to have a distinctly unusual anatomic picture, with a fifth cardiac chamber appearing at the cardiac apex. This proved to be the drainage site for a large coronary artery fistula originating in the left anterior descending coronary artery. The anatomic relations and blood flow patterns were demonstrated with transthoracic and transesophageal echocardiography.

Adult↗
PubMedDate not supplied

Echocardiographic diagnosis of secondary coarctation complicating the repair of a traumatic pseudoaneurysm of the aorta.

An 18-year-old patient underwent repair of traumatic aortic pseudoaneurysm. Postoperatively, the physical examination showed hypertension with 30 mm Hg gradient between the upper and lower extremities. Doppler echocardiographic evaluation demonstrated a new (secondary) aortic coarctation at the site of the repair. Transesophageal echocardiography revealed the detailed anatomy and the cross-sectional area of the coarctation.

Adolescent↗
PubMedDate not supplied

Aortic dissection complicating cardiac surgery: diagnosis by intraoperative biplane transesophageal echocardiography.

Aortic dissection is a rare but devastating complication of cardiopulmonary bypass. Intraoperative transesophageal echocardiography can be a useful technique to define the anatomy of the dissection, to evaluate its extension and progression, and to detect the presence of aortic insufficiency. We describe two cases in which transesophageal echocardiography helped in making a rapid diagnosis of aortic dissection during cardiac surgery and demonstrate how it may play a role in therapeutic decision making.

Aged↗
PubMedDate not supplied

Pitfalls in the diagnosis of thoracic aortic aneurysm by transesophageal echocardiography.

A 74-year-old man underwent transesophageal echocardiography to evaluate the possibility of dissection of the descending aorta. The study demonstrated a round lumen that contained an echogenic mass mimicking aortic aneurysm with thrombus. However, computerized tomographic scanning identified the lumen as the pleural cavity containing a collapsed lung. The esophagus was on the right side of the spine, and the transesophageal technique could not visualize the descending aorta.

Aged↗
PubMedDate not supplied

Metastatic cardiac liposarcoma: diagnosis by transesophageal echocardiography and magnetic resonance imaging.

The most superior portion of the right atrium is not well visualized by transthoracic echocardiography. This limits the ability of the technique to detect intracardiac disease in this area. We describe a 41-year-old man with a history of liposarcoma in whom transthoracic echocardiography was unable to elucidate a right atrial metastasis. Transesophageal echocardiography demonstrated the morphology and extent of the large right atrial mass. These findings were well correlated with both magnetic resonance imaging and surgery.

Adult↗
PubMedDate not supplied

Diagnosis of patent ductus arteriosus by serendipity in the adult.

Seven patients with patent ductus arteriosus (PDA) were seen in our adult echocardiography laboratory. In five of seven patients the diagnosis was made on color Doppler when it was not suspected clinically. The diagnosis became apparent because of a turbulent retrograde jet seen on color Doppler in the main pulmonary artery. One of the patients had known congenital heart disease and heart surgery in the past, and the diagnosis of PDA was missed both on catheterization and in the operating room. PDA may be unsuspected in adult patients and may be missed by techniques other than color Doppler echocardiography. The striking findings on color Doppler may help to make this important diagnosis in such patients.

Adult↗
PubMedDate not supplied

Echocardiographic diagnosis of bland thrombus on an aortic valve.

Echocardiography is a valuable modality for imaging thrombi and vegetations. Although patients with systemic lupus erythematosus may develop Libman-Sacks endocarditis, in which punctate verrucous plaques are found histologically on valvular endocardial tissue, these lesions are ordinarily too small for ultrasonic imaging. We describe a patient with systemic lupus erythematosus complicated by systemic embolization, who had a large mobile aortic valve thrombus, which was discovered with the aid of echocardiography and was confirmed by surgical resection.

Adult↗
PubMedDate not supplied

A patient with right and left atrial membranes: the role of transesophageal echocardiography and magnetic resonance imaging in diagnosis.

A patient who had right and left atrial membranes was examined. The diagnosis and the hemodynamic significance of both membranes were detailed by transesophageal echocardiography and were confirmed by magnetic resonance imaging. Transesophageal imaging was found to be superior to routine echocardiography in visualization of these atrial structures.

Adult↗
PubMedDate not supplied

Transesophageal echocardiography during percutaneous mitral valvuloplasty.

Transesophageal echocardiography was performed during mitral balloon valvuloplasty. It provided valuable information about the position of the transseptal needle, wires, and balloon catheter throughout the procedure, and it helped in the immediate evaluation of its results. Transesophageal echocardiography was well tolerated and there were no complications.

Catheterization↗