Biomedical subjects

F Haab

Publications and source records attributed to F Haab.

40 records · Page 3Linked to original sources

PubMed1992

[Beneficial effects of perfusion of atrial natriuretic factor in acute post-ischemic renal insufficiency in the rat].

Owing to its capacity of increasing glomerular filtration, potential beneficial effects of atrial natriuretic factor (ANF) were assessed during a post ischemic acute renal insufficiency in rats. Renal insufficiency was obtained by clamping the renal artery during 30 min., and by performing a reperfusion during 2 hours in uninephrectomized rats. Three groups were defined: a control group where animals were submitted to an operation procedure without renal artery clamping, a control group were animals received a physiological serum perfusion (1.5 ml/h) during the renal reperfusion time and an experimental group where animals were administrated a rat 1-28 ANF perfusion (5 microns/ml in NaCl 0.9%, 1.5 ml/hour) during the reperfusion time. Insulin clearance (1.0 + 0.05 ml/h vs 0.7 + 0.05 ml/h, p < 0.01), and diuresis (32.9 +/- 3.6 microliters/min. vs 7.5 +/- 0.23 microliters/min., p < 0.01) were significantly higher in rats which were administrated a NaCl 0.9% perfusion. Histologically, a significant decrease in kidney weight and in he percentage of diseases nephrons was observed after reperfusion in ANF treated rats. The results obtained demonstrate that ANF perfusion in case of post ischemic acute renal insufficiency in rats improves the recovery of renal function and reduces the renal histologic lesions.

Acute Kidney Injury↗

PubMed1991

[Adrenal myelolipoma. Review of the literature and case report].

Adrenal myelolipoma is a rare, benign tumour composed of adipose and haematopoietic cells. It is usually an incidental finding or may present in the form of a complication, the most severe being spontaneous retroperitoneal rupture. Computed tomography is the best examination, providing a preoperative diagnosis in 90% of cases. Adrenal aspiration cytology is useful in the case of a persistent doubt concerning the diagnosis. The principal differential diagnosis consists of an angiomyolipoma of the upper pole of the kidney. The indications for surgical resection are limited to symptomatic tumours, tumours larger than 5 cm in diameter and in the case of a doubtful diagnosis.

Adrenal Gland Neoplasms↗

PubMed1991

[Should adrenalectomy be performed systematically as part of radical nephrectomy for renal cancer? Review of 119 cases].

Systematic histological examination of 119 operative specimens of radical nephrectomies performed for renal cell carcinoma revealed adrenal invasion in 6 cases (5.04%). Preoperative computed tomography visualised the adrenal lesions with a sensitivity of 100%. Adrenal involvement was due to either contiguous invasion (3 cases) or metastatic spread (3 cases). Other visceral or lymph node metastases were detected in every case. The mean survival of patients with an adrenal lesion was 16.5 months. These data and those reported in the literature suggest the value of systematic adrenalectomy as part of radical nephrectomy.

Adrenalectomy↗

PubMedDate not supplied

Helical CT and 3D reconstruction of ureteropelvic junction obstruction: accuracy in detection of crossing vessels.

PURPOSE: The purpose of our study was to evaluate the accuracy of 3D helical CT and its value in surgical planning for the treatment of ureteropelvic junction obstruction (UPJO). METHOD: CT scans and 3D reconstruction of renal vessels and the renal pelvis were performed in 20 cases of UPJO treated by open surgery. We analyzed scans in search of a vessel at the junction and its position relative to the UPJ. Helical CT scans and 3D reconstructions were correlated with macroscopic surgical findings. RESULTS: CT scans demonstrated the presence of a UPJO in all cases. Crossing vessels were present at the junction in 13 of 20 cases. The vessel crossed the junction posteriorly in six cases and anteriorly in seven cases. Macroscopic surgical findings were in agreement with helical CT reconstructions in 100% of the cases. CONCLUSION: Axial scans together with 3D reconstruction are an accurate way of detecting crossing vessels when UPJO occurs, and the choice of the most adequate surgical technique is facilitated.

Humans↗