CT myelography of a fragment of a lumbar disk sequestered posterior to the thecal sac.
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Adult↗
Biomedical subjects
J D Lutz
Publications and source records attributed to J D Lutz.
Radiology clinic: ulcerated, swollen finger: rule out osteomyelitis.
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Adult↗
[Renin-angiotensin-aldosterone system in obese children].
Plasma renin (PRA) and aldosterone activities were measured in 29 obese children and in 48 controls of the same age. Blood samples were taken at 8 AM after a night's sleep and after 3 days of a diet with normal sodium intake. The PRA in the obese children was lowered: m = 1.00 ng/ml/h (controls = 1.86 ng/ml/h; p = 0.01). The drop in plasma aldosterone activity was not significant: m = 134.1 pg/ml (controls: m = 167.5 pg/ml). Plasma aldosterone activity was positively correlated with PRA in controls (p less than 0.01): this correlation was not found in obese children. In obese children no dissociation could be found, in the resting state, between plasma aldosterone activity and PRA, contrary to obese adults under stimulation. In fact, 1) the aldosterone/PRA ratio did not differ significantly between obese children and controls, 2) the average value of plasma aldosterone activity that one could predict in the obese children from their average PRA level and the linear regression calculated from the controls exactly corresponded to the measured value. The elevated blood pressure found in the obese children could explain the drop in the PRA which would thus remain adapted to the blood pressure level.
Adolescent↗
[Congenital carotid to jugular aneurysm].
A congenital carotid--jugular aneurysm was responsible for severe heart failure in a two day old baby. The child recovered after surgery. The signs suggesting an arteriovenous fistula (a continuous murmur and thrill, hyperdynamic circulation) may be absent, as in this case, when the child is in severe cardiac failure. The signs should be sought when the circulation improves.
Arteriovenous Malformations↗
[Experimental nephrotic syndrome in the rat. Biologic parameters and study of several hydrolases in different purified kidney fractions].
The induction of nephrotoxic nephritis in rats with rabbit antibodies preparation results in proteinuria, hypoproteinemia and hyperlipidemia with little glomerular lesions. A study of some hydrolases in cortex and medulla on one hand and glomerular and tubules on the other, showed changes in the activities of following enzymes. 1) A 20-30 % decrease in Na+, K+ dependent ATP-ase in whole kidney. 2) A 20 % decrease in beta-galactosidase activity in glomerular and medulla. 3) A 20 % increase of arylsulphatase A activity in tubules. These results are discussed in the light of the present knowledge of sulphatide metabolism in kidney.
Animals↗
[Arterial hypertension after kidney injuries in children. Clinical and pathogenic aspects].
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Child↗
Stenting of the iliac arteries with the Palmaz stent: experience from a multicenter trial.
Balloon-expandable, intraluminal stenting of the iliac arteries with the Palmaz stent was the subject of a multicenter study for 4 years. A total of 486 patients underwent 587 procedures. Four hundred and five patients had unilateral and 81 had bilateral iliac stent placements. Follow-up ranged from 1 to 48 months (mean 13.3 +/- 11 months). Sustained clinical benefit of the treated patients was obtained in 90.9% at 1 year, 84.1% at 2 years, and 68.6% at 43 months. Angiographic patency rate was 92%. Diabetes mellitus and poor runoff had significant negative influence on the clinical outcome. The 10% incidence of procedural complications was not altered by operator experience.
Arteriosclerosis↗
Transjugular intrahepatic portosystemic shunt placement for variceal bleeding: predictors of mortality.
PURPOSE: To identify factors that predict survival in patients with variceal bleeding who have undergone transjugular intrahepatic portosystemic shunt (TIPS) placement. PATIENTS AND METHODS: TIPS was performed in 64 of 65 patients. Indications were bleeding esophagogastric varices in 64 patients and hemorrhoidal bleeding in one. Child-Pugh classifications were A in two patients, B in 32, and C in 31. Acute bleeding was controlled before TIPS in 26 patients in stable condition but not in 39 patients whose condition was unstable. RESULTS: Twelve patients died within 30 days of TIPS, and another 14 died thereafter. The cumulative survival rate was 67% at 6 months and 56% at 1 year. Cumulative 30-day survival was 96% for stable and 69% for unstable patients, a significant difference (P = .0135). Thirty-day survival was 91% for patients in Child-Pugh classes A and B combined and 71% for patients in class C (P = .042). CONCLUSION: Efforts to control acute bleeding and improve a patient's metabolic status before TIPS are likely to improve 30-day survival.
Adult↗
[Williams and Beuren's syndrome with hypertension and associated renal abnormalities (author's transl)].
The authors presented a case of the Williams and Beuren's syndrome, special by the existence of aorta coarctation, high blood pressure, nephrotic syndrome and renal dysplasia. The Williams-Beuren's syndrome is characterised by the association of facial anomalies, mental retardation and supra-valvular aortic stenosis. The case presented in this study demonstrates: -- the symptomatic diversity of the Williams and Beuren's syndrome; -- and the relationship of this syndrome and severe idiopathic hypercalcemia of the infant. The etiopathogenesis is also discussed.
Abnormalities, Multiple↗