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Biomedical subjects

O Saarinen

Publications and source records attributed to O Saarinen.

25 records · Page 2Linked to original sources

How many projections are really needed in angiographic assessment of the femoral bifurcation?

The purpose of this study was to analyze how many angiographic projections are needed in the diagnosis of hemodynamically significant stenoses of the femoral bifurcation. A total of 134 femoral bifurcations were examined with triplanar angiography in 67 patients (45 men and 22 women). The patients, ranging in age from 42 to 81 years (mean 63), suffered from incapacitating symptoms of peripheral arterial disease. The contralateral posterior oblique projection proved to be the most valuable in the assessment of hemodynamically significant arterial stenoses of the femoral bifurcation. An AP projection added information on stenoses of the inlets of the deep femoral artery in 9% of cases and on stenoses of the inlets of the superficial femoral artery in 6% of cases. An arteriographic examination should be started with a contralateral posterior oblique projection and this view will suffice in most cases.

Adult↗

Urography with spasmolytics.

The effects of glucagon (1 mg i.v.) and hyoscine butylbromide (Buscopan 20 mg i.v.) and placebo on the visualization of the pyelocalyceal systems and ureters was compared in a routine urography with abdominal compression in a double-blind, randomized trial comprising 189 kidneys and ureters. The visualization of the ureters in the supine position was highly significantly better than in the prone. In the prone position the ureteral visualization with Buscopan was marginally significantly better than with placebo or glucagon. Otherwise, neither Buscopan nor glucagon improved the pyeloureteral visualization. However, with glucagon the pyelocalyceal visualization was highly significantly poorer than with placebo, and marginally significantly poorer than with Buscopan.

Animals↗

Shoulder arthrography with sodium meglumine metrizoate and iopamidol.

The purpose of this study was to analyze arthrographic imaging of the structures of the shoulder joint when using either sodium meglumine metrizoate or iopamidol as a contrast medium. Two hundred and ten patients underwent single-contrast shoulder arthrography. In patients with a full-thickness tear of the rotator cuff, both contrast agents reliably revealed this lesion. However, in patients with a full-thickness rotator cuff tear, the biceps tendon could be demonstrated more readily with iopamidol, which is a non-ionic contrast medium.

Adult↗

Aseptic necrosis of the femoral head following renal transplantation.

The occurrence of aseptic hip necrosis was investigated in 546 renal transplant patients (639 transplants) with graft survival for a minimum of 12 months. Aseptic hip necrosis developed in 39 hips in 29 patients (5.3%) from 3 to 121 months (mean 22 months) after the renal transplantation. There was no sex-related difference in incidence of hip necrosis. The complication was significantly more common among patients younger than 20 than among those older than 40 years. The development of hip necrosis did not correlate with type of renal disease, origin of graft (cadaver of living relative donor), side of transplant or length of dialysis treatment. The number of transplantations per patient did not influence the occurrence of hip necrosis. Analyses of serum concentrations of creatinine, calcium, phosphorus and parathormone before and at different periods after transplantation revealed no patterns predictive of hip necrosis. The pathogenesis of aseptic necrosis of the femoral head obviously is multifactorial.

Adolescent↗

Steroid treatment and aseptic necrosis of the femoral head in renal transplant recipients.

The subject of our study was 546 renal transplant recipients with a graft survival for minimum 12 months. Of these, 29 renal recipients (5.3%) developed aseptic necrosis of the femoral head. The examination revealed that there were no significant differences between the renal recipients with hip necrosis and the control group in the total quantities of administered glucocorticosteroids, whereas there was a highly significant correlation between the two groups in the number of the intravenously administered methylprednisolone pulse doses.

Azathioprine↗