Giovanni Gnecco

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OBJECTIVE To report our data on selected patients with previous paradoxical embolism who underwent transcatheter patent foramen ovale (PFO) closure. METHODS Between July 2001 and July 2007, percutaneous PFO closure was performed on 128 patients (65 women, mean age: 46 +/- 12.8 years). Patent foramen ovale closure was recommended for secondary prevention(More)
Cardiac function and plasma levels of atrial natriuretic factor (ANF) were studied in a group of 38 patients with untreated essential hypertension and in a group of 31 well matched normotensive controls. ANF was slightly but significantly higher in hypertensives and was directly correlated with mean arterial pressure and inversely with plasma renin activity(More)
In this report we discuss the case of a 55-year-old female who underwent echocardiographic and Doppler studies for the presence of systolic murmur at physical examination, in which echocardiography showed the concomitant presence of an atrial septal aneurysm, a Chiari network and a tricuspid valve prolapse, a hypothetic association not previously described.(More)
Between January 1987 and December 1991 26 patients with mitral and mitro-aortic disease and severe pulmonary hypertension (> or = 60 mmHg) were subjected to surgery. In 22 patients we have studied systolic pulmonary pressures by echocardiography-Doppler examination at 3-6 and 12 months from surgery. We noticed a decrease in pulmonary pressure values in all(More)
The most frequent diseases of thoracic aorta in the adult population, aneurysms and dissection, can lead to dramatic complications. Therefore in these cases an early and careful diagnosis is required for a correct therapeutic choice. The close distance of the thoracic aorta to the esophagus allows a better visualization by transesophageal echocardiography(More)
We studied and compared functional parameters in 314 valvular prostheses. The following parameters have been calculated: mean transvalvular gradients for aortic and mitral prostheses and functional area by Pht (pressure half time) for mitral prostheses. All patients with important depression in myocardial function, tachycardia or malfunctioning prostheses(More)
Transesophageal echocardiography is a new semi-invasive procedure whose practical application has yet to be precisely defined. The diagnosis of prosthetic valve endocarditis is particularly difficult with the transthoracic approach, either by thoracic conformation of patients who underwent cardiac surgery, or ultrasound attenuation caused by the prosthetic(More)
Transthoracic and transesophageal echocardiography were used to demonstrate prosthetic valve dysfunction in 134 patients with cardiac prosthetic valves in aortic, mitral and tricuspid position. Transthoracic echocardiography showed a high accuracy in the diagnosis of prosthetic valve dysfunction, especially in aortic position or when a stenosis was present.(More)