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Biomedical subjects

M Gueron

Publications and source records attributed to M Gueron.

At least 109 records · Page 6Linked to original sources
PubMed1975

Isolated anomalous right ventricular muscle bundle in the asymptomatic adult.

Muscular obstruction to right ventricular outflow is usually at the infundibular level, but, less commonly, it can occur within the body of the ventricle due to an anomalous muscle bundle. This lesion is almost always associated with a ventricular septal defect or other cardiac lesions, and is usually discovered in infancy or childhood. Two asymptomatic adults with severe obstruction due to right ventricular muscular band as an isolated lesion are presented. The lesion can be tentatively diagnosed on clinical grounds and confirmed by angiocardiography. The advisability of surgical correction in the asymptomatic adult with such an isolated lesion is uncertain.

Adult↗
PubMed1975

A statistical approach to the recognition of inferior wall myocardial infarction by the Q/R ratios.

To sharpen ECG criteria for diagnosis of inferior wall myocardial infarction (IWMI), the distribution of Q duration and Q/R ratios in leads 3 and aVF in four groups have been analyzed. Two of these groups are teaching samples (200 ECGs of patients with various diagnoses, but in whom no myocardial infarction was found on post-mortem, and 123 ECGs of patients in whom IWMI was found on post-mortem examinations) and two control samples (408 ECGs of healthy men and 60 ECGs of patients with clinically proved IWMI). The chosen combination of conditions Q/R3 greater than 25 percent and Q/RaVF greater than 10 per cent gives minimal number of errors for the teaching samples. The diagnostic rule gave 5-7 percent errors over the control samples. It is shown that use of Q duration greater than 0.04'' gives less satisfactory results in the diagnosis of IWMI.

Diagnosis, Computer-Assisted↗
PubMed1975

Electrocardiographic changes following intravenous pyelography.

One hundred consecutive patients who underwent i.v. pyelography had ECG performed before, immediately following and 5 min after the injection. ECG changes appeared in 15 patients and were considered to be major in five of them. The incidence of ECG changes was significantly higher in patients with abnormal ECG prior to pyelography. The average age of the patients who developed changes was higher than that of patients in whom no ECG changes were observed. There was no significant difference in the incidence of ECG changes after standard and infusion pyelography.

Clinical Trials as Topic↗
PubMed1975

Pseudoaneurysm of the left ventricle after myocardial infarction: A curable form of myocardial rupture.

Rupture of the myocardium following an acute infarction is occasionally compatible with survival. In such cases, pre-existent pericardial adhesions confine the bleeding to a limited space within the pericardial sac and produce a chamber which communicates with the left ventricular cavity. The chamber gradually enlarges and forms a pseudoaneurysm. Two cases are described in which the diagnosis was made preoperatively and the pseudoaneurysm was surgically resected. Twenty-one previously reported cases are reviewed, as well. The condition's progressive nature leading to death from heart failure or rupture of the pseudoaneurysm, and its amenability to surgical cure make it imperative that the diagnostic features be well known. The diagnosis should be suspected in cases of progressive heart failure developing shortly after the acute phase of myocardial infarction, in which chest roentgenograms show an enlarging heart shadow characterized by a distinct posterior or lateral bulge. The diagnosis can be confirmed by left ventriculography, which should be performed immediately in all suspected cases.

Angiocardiography↗
PubMed1975

Quadruple valve commissurotomy.

A 12-year-old girl in congestive heart failure was diagnosed to be suffering from severe polyvalvular disease due to a combination of congenital and rheumatic lesions. Cardiac catheterization demonstrated stenotic lesions of all the heart valves. The child underwent quadruple valve commissurotomy and is symptom free and thriving 2 years later.

Child↗
PubMed1975

Cesarean section in a patient with a mitral valve prosthesis.

A successful cesarean section performed in a 24-year-old woman with rheumatic heart disease and a Starr-Edwards mitral valve prosthesis is reported. In the 33rd week of pregnancy, previous warfarin sodium therapy was discontinued and dipyridamole therapy instituted. Successful pregnancy and cesarean section in patients with mitral valve prostheses are possible with this regimen.

Adult↗