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Biomedical subjects

Y Sudre

Publications and source records attributed to Y Sudre.

At least 37 records · Page 2Linked to original sources

[Cardiac complications of infectious endocarditis].

Factors predisposing to cardiac complications and influencing hospital survival, were analysed in a retrospective study of 101 cases of infective endocarditis. Heart failure occurred in 52 p. 100 of our patients. A significantly greater incidence of heart failure was observed in endocarditis with no preexisting heart disease (p less than 0.01), aortic and mitral valve involvement (p less than 0.01), staphylococcus aureus infections (p less than 0.05), arrhythmias (p less than 0.001), and conduction disturbances (p less than 0.01). Significantly more patients with congestive cardiac failure died in hospital (51 p. 100) than those without congestive cardiac failure (17 p. 100) (p less than 0.001). Severe heart failure before treatment (p less than 0.05), streptococcus D endocarditis (p = 0.05), supraventricular arrhythmias (p less than 0.05), and intracardiac conduction disturbances (p less than 0.05), significantly increased the hospital mortality in patients with congestive heart failure. Electrocardiographic findings revealed arrhythmias in 34 p. 100 of cases, more commonly with mitral valve involvement (71 p. 100) and 52 p. 100 died in hospital. The development of intracardiac conduction disturbance during the course of 18 cases of endocarditis (aortic valve in 11 cases) was associated with a hospital mortality rate of 60 p. 100. The incidence of pericarditis and pulmonary embolism was 4 and 7 p. 100 respectively, and all patients died in hospital. Acute inferior myocardial infarction compatible with coronary embolism was suspected in one patient. Early cardiac valve replacement improved the hospital survival in patients with cardiac complications of infective endocarditis.

Adult↗

[Chronic atrophic polychondritis. Critical analysis of the therapeutic efficacy of dapsone. 2 cases].

Dapsone has been used since 1976 in the treatment of relapsing polychondritis. A critical analysis of its therapeutic effectiveness based on 2 personal cases and 14 cases reported in the literature, all treated with dapsone alone, showed that treatment had to be discontinued in 4 on account of side effects (haemolytic anaemia, erythema multiforme, somnolence, headache, nausea); 1 patient showed no improvement and 5 relapsed; 6 responded favourably and without relapse during a 3 months' to 4 years' follow-up. Considering the unpredictable course of relapsing polychondritis and the fact that some of its clinical manifestations, notably auricular chondritis, may spontaneously resolve, the response of the disease to dapsone is difficult to establish and requires to be confirmed by a controlled clinical trial.

Aged↗

[Infectious endocarditis in the elderly].

Thirty three cases of infectious endocarditis in patients over 65 years of age (mean age: 72,5 years) observed between 1966 and 1982, were analysed; there were 22 male and 11 female patients, a male predominance of 67%. The data was compared with 68 cases of patients aged less than 65 years of age (mean age: 48,4 years; 49 male and 19 female patients, a male predominance of 72%) treated during the same period. In the patients over 65 years old, compared to those under the age of 65, we observed that: the previous condition of the cardiac valves was more commonly unknown (39% compared to 21%), rheumatic valvular disease was rare (12% of cases), the diagnosis was not delayed, the reason for hospital admission was usually a complication (30% compared to 7%), the two cardinal signs (pyrexia and a cardiac murmur) were always present, as in the younger age group, the urinary tract was the only commoner site of primary infection, the blood cultures were as frequently positive in both groups (79% compared to 85%), in cases with negative blood cultures, antibiotics had not always been given beforehand, but this was commoner than in the younger age group, the causal organisms and usual biological changes were unremarkable, echocardiography, often more difficult because of the high incidence of valvular thickening, remained a valuable tool for diagnosis and management, cardiac failure was more common (55% compared to 37%) as were neurological complications (24% compared to 10%) and renal failure, mortality was greater (39% compared to 25%) and higher in both groups in patients with aortic valve disease and infection with staph-aureus.

Aged↗

[Remission induced at the early stage of insulin-dependent diabetes: do predictive factors exist?].

The induction of a remission has been attempted in 28 patients with insulin-dependent diabetes of less than 3 months' duration by strictly normalizing glycemia either with a period of external artificial pancreas followed by continuous subcutaneous insulin infusion (22 patients) or with continuous subcutaneous insulin infusion alone (6 patients). HLA A, B and DR antigens were determined in every patient. Residual beta-cell function was evaluated by measuring C peptide and the ratio of C peptide to glycemia, and by testing the response to a glucagon stimulation before initiating and after withdrawing insulin treatment. Oral treatment with 15 mg glibenclamide and 840 mg metformin daily was administered when insulin had been stopped. A remission was obtained in 17 of the 28 cases. The likelihood of a remission was greater if: (1) the patient was older (mean age was 25.6 years in case of success and 16.6 Years in case of failure); (2) initial daily needs for insulin were smaller (0.88 v. 1.23 U/kg); and (3) stimulated secretion of C peptide was larger (0.22 v. 0.11 mmol/l).

Adolescent↗

[2 new cases of myocardial infarction after injection of vincristine].

The authors report two cases of myocardial infarction following the injection of vincristine. The vincristine is held responsible for several reasons: absence of past history or risk factors of coronary artery disease, no past history of mediastinal radiotherapy, the development of coronary manifestations several hours after the injection of vincristine. Both cases followed a fatal course. The pathophysiology of this iatrogenic complications is unclear. Any patient receiving such treatment should be carefully monitored clinically and electrocardiographically.

Aged↗

[Plasmocyte dyscrasia with polyneuropathy, polyendocrinopathy and polyadenopathy].

A 72 years old, male complains difficulty in walking, a peripheral neuropathy of four limbs is found. Clinical examination shows a peripheral lymphadenopathy predominating in left inguinal nodes. A malignant IgA k plasmocytoma is seen on lymph node biopsy. There is no pathological plasmocytosis on bone trephine biopsy. Bone radiographies are normal. Immunoelectrophoreses finds a monoclonal IgA lambda protein of little abundance without lowering of other immunoglobulins. Insufficiency of adenohypophysis clinically suspected, is confirmed by static and dynamic tests as well as anomaly of glucose tolerance. Biopsies of skin, muscle and nerve show neither plasma cell infiltrate nor amyloid deposit. Evolution is stabilized during 12 months by an hematosarcoma type treatment which must be stopped because of bad hematologic tolerance. This interruption is followed by a fast severe evolution that leads to death in few weeks. This case as comparable with those reported by japanese authors in Far East and of which rare cases have been reported in non japanese people. It seems that the association of a non myelomatous plasma cell dyscrasia of uncertain malignancy with peripheral neuropathy, endocrinic, cutaneous and various visceral signs must be individualized. It could be considered as a particular paraneoplastic syndrome more especially as in many case the cure of the plasma cell proliferation has been followed by disparition of visceral signs.

Aged↗

[Nephrotic syndrome associated with chronic lymphoid leukemia. Review of the literature apropos of a case].

A case of chronic lymphoid leukaemia complicated by a nephrotic syndrome is reported. There was no evidence of amyloidosis or renal vein thrombosis. Percutaneous renal biopsy disclosed lobular membranoproliferative glomerulonephritis with subendothelial deposits of IgG, C3, C4 and C1q. Circulating immune complexes, IgG lambda cryoglobulin and low CH50 levels due to activation of the classical pathway were demonstrated in serum. Immunosuppressive treatment of the leukaemia resulted in complete regression of the nephrotic syndrome.

Aged↗

[Blood sugar control in diabetics with the insulin pump. Comparison with discontinuous injections].

Eighteen insulin-dependent diabetic patients received insulin in a continuous subcutaneous infusion delivered by a portable pump. Short-term glycemic control was evaluated on the average glycemia (serum glucose was assayed seven times per 24 hours for three to five days), on the MAGE coefficient which gives an estimate of glycemic lability, and, in eight patients, on serum C-peptide concentrations. Results were compared to those recorded with two daily subcutaneous injections of a combination of regular and intermediate insulin. The average glycemia and the MAGE coefficient were 1.32 + 0.05 milligram (m + SEM) and 1 + 0.05 milligram respectively under continuous infusion, compared to 2.05 + 0.12 and 1.76 + 0.12 milligram respectively under insulin injections. Insulin requirements were significantly lower under continuous infusion (0.99 + 0.08 U/kg versus 1.35 + 0.11 U/kg). In three patients with brittle diabetes the use of the pump ensured rapid metabolic control. The advantages and drawbacks of portable insulin pumps are discussed in the light of this experience.

Adolescent↗

[Viral etiology of aseptic lymphocytic meningitis. Twenty-four cases seen over a nine-year period (author's transl)].

Among 208 cases of aseptic lymphocytic meningitis seen over a nine-year period, 24 were diagnosed as viral infections. Diagnosis was established by both isolation of the virus from one or several specimens (feces, pharyngeal mucus, CSF) and significant rise in specific antibody titres. The usual clinical and epidemiological characteristics of these benign infections were demonstrated in our series: prevalence in males; recrudescence in summer; infectious syndrome associated with an unequivocal, though moderately severe, meningeal syndrome, and occasionally with various visceral manifestations (exanthema, pharyngitis, acute respiratory disease, myalgia); clear CSF usually with pleiocytosis (relative but not absolute predominance of lymphocytes) and normal chemical findings. All the cases in our series were due to enteroviruses, Echo or coxsackie. Isolation of a poliovirus (type III) in one case deserves mention. Cases where clinical examination led to unequivocal diagnosis of mumps or herpes zoster were not included in our study.

Adolescent↗