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Biomedical subjects

N G De Vega

Publications and source records attributed to N G De Vega.

9 recordsLinked to original sources
PubMed1975

Thrombotic obstruction of Bjork-Shiley tricuspid valve prosthesis. Report of three cases reoperated with success.

Three patients presented subacute right heart failure, 6, 12 and 22 months after replacement of the tricuspid valve with a Björk-Shiley prosthesis. The principal finding encountered on clinical examination was a tricuspid filling murmur with inspiratory accentuation. The mean prosthetic gradient found at cardiac catheterization was 7, 8 and 10 mm Hg. At surgery, the three prostheses were thrombosed on their ventricular aspect and all the three were replaced with new ones of the same model. The patients are alive and in good condition, 21, 17 and 8 months after the operation. Problems which relate to the surgical management of tricuspid valve disease are discussed.

Adult↗
PubMedDate not supplied

Apicoaortic conduit implanted without cardiopulmonary bypass: a useful contingency technique.

Apicoaortic conduit implantation is easier and safer with cardiopulmonary bypass. We present an analysis of two cases in which the operation was successfully concluded without the bypass. The first patient had a simultaneous correction of aortic coarctation and tunnelliform subaortic stenosis 8 years ago and is asymptomatic at present. The second patient suffered from hyperlipoproteinemia, calcification of the ascending aorta and femoral arteries and severe aortic stenosis. One month after surgery be suffered cardiac arrhythmia and died. Although this experience is limited, we believe that information about this alternative method may be useful in some cases.

Aortic Valve Stenosis↗
PubMedDate not supplied

[Coronary dissection following coronary radiography].

We present 4 cases of dissection of the coronary arteries during coronary radiography, which required emergency surgery. The right coronary was dissected in 2 cases and the left coronary in the remaining cases. Coronary artery bypass was carried out using saphenous vein. Although one patient suffered myocardial infarction, all patients had successful recovery and evolution.

Adult↗
PubMedDate not supplied

The new De Vega technique in tricuspid annuloplasty (results in 150 patients).

A new technique of circular tricuspid annuloplasty in the treatment of tricuspid insufficiency is described. One hundred and fifty patients have been operated on by this technique between April 1973 and March 1975. The operative findings and the results of the operation from 6 to 30 months after operation are described. The addition of tricuspid circular annuloplasty to mitral and aortic valve replacements where indicated has resulted in a gratifying fall in operative mortality and better long term functional result.

Adolescent↗