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Biomedical subjects

A Rémond

Publications and source records attributed to A Rémond.

At least 19 recordsLinked to original sources
PubMed1995

[Delayed angioplasty of residual coronary stenosis after thrombolysis of myocardial infarction: prognostic factors of left ventricular function].

The aim of this study was to analyse the prognostic factors of long term left ventricular function after successful delayed angioplasty of residual coronary stenosis after thrombolysis for myocardial infarction. The left ventricular function of fifty patients, aged 54 +/- 10 years, who underwent intravenous thrombolysis 2.9 +/- 1.3 hours after the onset of myocardial infarction (28 anterior, 22 inferior wall) was assessed by angiography at the 6.1 +/- 1.7th day and 6.1 +/- 2.5 months after successful angioplasty undertaken on the 8.3 +/- 5.2nd day. In cases without reocclusion (n = 44), the ejection fraction and the wall motion of the infarcted region improved significantly from 56.8 +/- 12.2% to 59.5 +/- 15.4% (p < 0.002) and from 8.4 +/- 14.8% to 18.3 +/- 24.3% (p = 0.0001), respectively. These parameters did not change in cases with reocclusion (n = 6). When the dilated artery remained patent, an improvement in motion of the infarcted region was observed in 69.5% of hypokinesis (n = 23), 50% of akinesis (n = 10) and 9.1% of dyskinesis (n = 11) (p < 0.005). The improvement in motion of the infarcted zone was negatively correlated with the delay of thrombolysis (r = 0.36; p < 0.02) and peak CPK levels (r = 0.31; p < 0.04). Over 60% restenosis on digitalised densitometry (n = 11) did not compromise the possibilities of improvement, the evolution of wall motion of the infarcted zone and volumes with respect to cases without restenosis (n = 33).(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1994

[Left ventricular function and secondary angioplasty after anterior infarction in simple coronary vessel disease].

Arterial patency is a good prognostic factor in terms of survival and left ventricular function after myocardial infarction. The aim of this prospective study was to evaluate the benefit of secondary angioplasty of the infarct-related artery in single vessel, left anterior descending disease, on regional and global left ventricular function. Initial coronary angiography was undertaken at the 7th +/- 2 days after the onset of infarction. Arterial patency was assessed by the TIMI criteria and by percentage stenosis on quantitative angiography. Forty consecutive patients (Group I) underwent conventional angioplasty of the left anterior descending artery at the 9th +/- 2 days. Twelve consecutive patients (Group II) did not undergo angioplasty. A repeat coronary angiographic study was performed at 3 months. The results showed no difference between the two groups of patients in base line values. A significant improvement in arterial patency was observed in Group I (TIMI Grades II or III) and in residual stenosis at 3 months (54.7 +/- 13% versus 80.6 +/- 13%, p < 0.05). In addition, a significant improvement in ejection fraction of +4.7% (p < 0.02), of left anterior descending myocardial regional wall motion of +7.6 (p < 0.02) and a reduction of induced left ventricular end systolic volume of -2.2 ml/m2 (p < 0.05) were observed in Group I. Initial segmental hypokinesia or akinesia improved in 67.5% of patients. However, 50% of patients in Group II improved their segmental wall motion abnormalities at 3 months.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1989

[The French Society of EEG and Clinical Neurophysiology is 40 years old].

The historical reminder of the foundation of the French EEG Society and the changes which have occurred during its operation show the worry of the Society for a better efficiency all along this last fourty years. A general survey of the scientific activities disclose the contribution of the society in the papers first published in the Revue Neurologique, and, after 1971, in the Revue d'EEG et de Neurophysiologie clinique de Langue française. The French participation in other clinical neurophysiological or scientific meetings in France and abroad is underlined by the important role it has played in the life of the International Federation for EEG Societies. Training of specialized doctors and technicians in the domain of the functional exploration of the nervous system has been a standing preoccupation of the Society, with the teaching of the so-called "Attestation d'EEG" in French universities and the training of technical personnel in specialized schools.

Electroencephalography↗
PubMed1986

Transcatheter embolization of liver capsule perforation during transvenous liver biopsy.

Fatal hemoperitoneum due to liver capsule perforation has been reported after transvenous liver biopsy. We report 2 cases of prophylactic embolization of such capsular gap. We propose the following techniques for embolization: detection of liver capsule puncture if the liver biopsy is difficult to perform because the liver is small or moves in ascites; and therapeutic embolization of detected capsular gap.

Biopsy↗
PubMed1985

[Xanthogranulomatous cholecystitis. X-ray computed tomographic study of a pseudotumoral form].

The authors report a case of xanthogranulomatous cholecystitis in a 63-year-old woman hospitalized because of a right hypochondrium mass. Ultrasonography, computed tomography, and celiac arteriogram showed a gallbladder tumour. Surgical management allowed subtotal tumour resection. Diagnosis of xanthogranulomatous cholecystitis was established by histological examination. Twenty-two months later, patient is in good health. From this observation and a world-wide literature review (90 previously reported cases), the authors analyse the clinical, pathological, and pathophysiological features of this very unusual entity.

Cholecystectomy↗
PubMed1984

[Gallbladder atony and celiac disease in adults. Radiographic and echographic study of 15 cases].

Gallbladder emptying was evaluated in 15 adult celiac disease patients by oral cholecystography or ultrasonography, after fatty meal or cholecystokinin stimulation. Gallbladder inertia was found in 13 cases. Our study agrees with previously reported results; however it is the first one in which this abnormality was demonstrated by ultrasonography. Our findings may suggest that gallbladder inertia is due to duodenal release of an inactive endogenous cholecystokinin. Control studies demonstrates that gallbladder inertia is reversible after gluten-free diet, recurs with relapse, and thus represents a true celiac disease sign, and not an associated condition. Finally, our cases suggest that gallbladder inertia may be radiologically evident before clinical features of malabsorption become apparent. Awareness of this possibility may persuade the radiologist to research in this condition an occult celiac disease.

Adult↗
PubMed1983

Bleeding cecal typhoid ulcer. Value of emergency angiography for selective surgical hemostasis.

A case of bleeding cecal typhoid ulcer in a 22-year-old patient demonstrated by superior mesenteric arteriography is described. An attempt to stop hemorrhage using intraarterial vasopressin infusion, failed. However, arteriography proved helpful in locating the bleeding site, and in permitting conservative surgery, namely cecal ulcer suture to achieve hemostasis. On the basis of this case and a review of the literature, management of complicating hemorrhage resulting from typhoid fever is discussed, with particular reference to radiological procedures.

Adult↗
PubMed1983

[Upper esophageal varices. Study of 6 cases and review of the literature].

Distal esophageal varices are most frequently associated with portal hypertension, while varices of the upper esophagus are occasionally observed in patients with vena caval obstruction. One hundred and nineteen cases of upper esophageal varices (downhill varices) have been reported in the literature. We report 6 cases (4 men and 2 women), with vena caval obstruction. Upper gastrointestinal hemorrhage occurred in one patient. Endoscopy showed varices in the proximal third of the esophagus in 5 patients and in the proximal half of the esophagus in the other patient. Superior vena cavogram demonstrated total or partial occlusion of the vena cava in 6 cases, with opacification of the right azygos vein in 4 cases and thrombosis of this vein in one case. Superior vena caval obstruction was secondary to malignant lymphoma in 2 cases, to malignant thymoma in 2 cases, to malignant thyroid tumor in one case and to anaplastic bronchogenic carcinoma in one case. Clinical symptoms of vena caval obstruction are present in 91.4 p. 100 of the cases in the literature. Upper gastrointestinal hemorrhage are observed in 7.6 p. 100 of cases. It is generally agreed that the predominant factors involved in the determination of the downward extension of varices along the esophagus are the level of superior vena caval obstruction and its duration. Because of the risk of digestive hemorrhage and of the topographic meaning of the degree of extension, upper esophageal varices should be routinely searched in patients with vena caval hypertension.

Adult↗
PubMed1981

Eye movement artifact nulling in EEGs by multichannel on-line EOG subtraction.

A multichannel nulling or subtraction technique for minimizing or eliminating vertical and/or horizontal eye movement artifact including blinks in EEG recordings is described. The circuit, which makes use of principles previously described by other workers, is intended to function integrally with contemporary electroencephalographs, and is relative simple in design and easy to implement.

Electroencephalography↗
PubMed1981

Cecal herniation into the lesser sac: double-contrast study of one case.

In a 45-year-old woman with abdominal pain and vomiting, plain films and barium studies showed a gas and fluid collection displacing the stomach anteriorly and to the left, and outlined by haustral folds. These signs were suggestive of cecal herniation through the epiploic foramen and eliminated the possibility of a lesser sac abscess. The diagnosis was confirmed by a double-contrast barium enema. Symptoms spontaneously resolved, and 4 years later, the patient was in good health, and without abdominal complaint.

Barium Sulfate↗
PubMed1980

Villous tumors of the colon and rectum: double-contrast study of 47 cases.

The radiological features of 47 villous tumors of the large bowel found in 39 patients by the double-contrast barium enema were studied. An attempt was made to determine the radiological indicators of malignancy and two features proved to be suspicious: large tumor size and indentation of tumoral base. This retrospective study emphasizes the advantages of the double-contrast technique in the detection of colonic villous tumors.

Adenoma↗
PubMed1980

[Combined intravenous arteriography and pyelography in renovascular hypertension. II. Comparison of its cost-effectiveness ratio with that of the classical approach (i.-v. pyelography +/- Seldinger arteriography) (author's transl)].

The cost of the systematic radiological examination of 100 hypertensive patients in the search of renovascular hypertension reaches 118 330 F, for the classical approach based on selecting the indications of the Seldinger arteriography on the urographic signs and even 164 950 F when these indications are broadened. The systematic examination of 100 hypertensives by the combined intravenous arteriography and pyelography costs 108 240 F when only one film is taken and 120 910 F when 6 films are taken. The effectiveness for the diagnosis of the 11 renovascular diseases present in 100 hypertensive patients, is measured by the recognition of 8.6-9.1 of them by the classical approach and 10.4-10.9 by the combined intravenous arteriography and pyelography. The effectiveness for the diagnosis of the 2,3 cases of renovascular hypertension present in 100 hypertensive patients is measured by the recognition of 1.8 -1.9 of them by the classical approach and 2.1-2.27 by the combined IV arteriography and pyelography. The cost of finding a patient with curable renovascular hypertension is respectively 51 543 F and 53 264 F with the routine intravenous arteriography according to the number of films and 65 738 and 86 815 F for the classical approach according to wether the indications of the Seldinger arteriography have purely urographic or also clinical basis. In conclusion, the combined intravenous renal arteriography and urography is a method more reliable and less expensive to diagnose renovascular disease and hypertension than the classical approach selecting the seldinger arteriography on the urographic and clinical data. Furthermore, this technic prevents arterial catheterism complications and allows a non traumatic follow-up of the non operated stenosis which may threaten the life of the kidney, as well as the operated or dilated ones.

Cost-Benefit Analysis↗