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M Fauchet

Publications and source records attributed to M Fauchet.

46 records · Page 3Linked to original sources

[Criteria of detection and treatment of rejection crises following human cardiac transplantation in a series of 10 cases].

Analysis of a series of 10 cardiac transplantations confirmed that the reject phenomena have a paroxysmal course, the diagnosis of which is different according to the time occurence of the reject crises, whether early (acute early rejection) or late (late acute rejection or chronic rejection). Because of the early diagnosis based on the follow-up of the electrocardiogram, of coagulation, of the graft flow, overcome eight rejection crises on the 3 patients with middle-term survival.

Adrenal Cortex Hormones↗

[Radioisotope measurement of coronary flow with atrial stimulation in the normal subject and in patients with coronary disease].

The induction of atrial systole by stimulation is a means of demonstrating insufficiency of myocardial perfusion, even where there is a normal coronary flow under basal conditions in a genuine case of coronary atherosclerosis. The method, which entailed the use of radiocardiography with potassium 42, was first checked for reproducibility. The coronary flow was then measured under basal conditions, and subsequently during or after atrial stimulation at 150/min. in a group of 50 controls and coronary patients. Under atrial stimulation, the value increases by an average of 15 per cent in the controls, and decreases by an average of 32 per cent in cardiac patients with vessels which are patent on coronary angiography. The coronary moiety of the cardiac output increases by an average of 27 per cent in the controls, but does not change significantly in the coronary group. After aorto-coronary by-pass, the coronary moiety of the cardiac output is increased significantly during stimulation when the by-pass is patent.

Adult↗

Volumetric quantification of coronary artery calcifications using dual-slice spiral CT scanner: improved reproducibility of measurements with 180 degrees linear interpolation algorithm.

PURPOSE: The purpose of this work was to determine the reproducibility of coronary total calcium score (TCS) with dual-slice helical CT and compare three acquisition protocols. METHOD: Fifty patients (59 +/- 10 years old) underwent dual-slice helical CT (collimation = 2 x 2.5 mm) and coronary angiography. Two successive scans were performed, resulting in three sets of images: pitch = 1, 360 degrees linear interpolation (LI) (A360); pitch = 1, 180 degrees LI (A180); and pitch = 1.5, 180 degrees LI (B180). TCS values, calculated using a volumetric method with a threshold of 90 HU, were compared, and the interscan variation was determined. Diagnostic performances were compared with receiver operating characteristic curves. RESULTS: Protocol A360 provided significantly lower TCS than protocols A180 and B180 (p < 0.0001). No statistical difference was seen between A180 and B180, which provided the lowest interscan variation (40 +/- 58%). However, no significant clinical impact of the observed interscan variations was found. CONCLUSION: Reproducibility of TCS with dual-slice helical CT is improved by the 180 LI algorithm. However, dual-slice helical CT is not sufficiently reproducible to allow serial quantification of TCS over time.

Adult↗

[Ileal duplication in adults. Value of 99m pertechnetate scintigraphy].

Duplications of the small bowel are an uncommon group of congenital malformations whose symptoms rarely occur in adults. We report the case of a 21 year-old man who suffered during four years from symptoms related to the ulceration of ectopic gastric mucosa in an ileal duplication (spontaneously resolving peritonitis, pelvic abscess, recurrent gastrointestinal bleeding and chronic abdominal pain). Radiological and endoscopic explorations and a first laparotomy failed to provide the diagnosis. 99m pertechnetate (99mTcO4) scintigraphy demonstrated ectopic gastric mucosa and guided the radiological detection of an ileal ulceration. Injection of 99mTcO4 during a second laparotomy located the ectopic gastric mucosa at the level of a tumefaction found on the mesenteric side of the terminal ileum. Duplication was only recognized at pathological examination of the ileal resection. This case emphasizes the need to evoke a duplication in clinical circumstances like those described in this patient as well as the usefulness of 99mTcO4 in the diagnosis of such a malformation.

Adult↗