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Biomedical subjects

A Pinet

Publications and source records attributed to A Pinet.

At least 37 records · Page 2Linked to original sources
PubMed1980

[Warren's operation for portal hypertension. Evaluation of results by early angiography in 23 cases (author's transl)].

After distal splenorenal anastomosis, as described by Warren, in 23 patients, early assessment of results (after 2 weeks and 2 months) by endoscopic examination and celiomesenteric angiography was used to evaluate the effectiveness of the procedure and its effects on hepatic portal perfusion. The distal splenorenal shunt remained open in almost all cases (22 out of 23), the varices diminished, and postoperative hemorrhage rarely occurred (3/23 cases). The portogastric disconnection was incomplete in 8 patients, preservation of hepatoportal flow not being constant, as 6 cases with partial and 2 cases with complete portal thrombosis were observed.

Adult↗
PubMed1978

[The use of simultaneous angiography to determine the signification of vascular images in renal scintiscans with technetium (author's transl)].

Combined angiography and renal scintiscans were used by the authors in an attempt to determine the signification of the images and vascular tracings obtained after intravenous injection of technetium (99mTc). They conclude that the scintiscan images are essentially the reflection of cortical vascularization and that its duration, as determined by the scintiscan, is roughly equal to the mean transit time of the indicator employed (Tc). Arterial stenosis cannot be demonstrated by scintiscans using technetium.

Adolescent↗
PubMed1976

Hepatography with intravenously injected emulsified iodolipids. Preliminary results.

Hepatography by slow intravenous infusion of AG 60 99 Guerbet (iodized lipids in a stable emulsion) was performed in 31 patients, aged 17 to 77 years, to detect circumscribed hepatic lesions: metastases, cysts, and hepatic abscesses. The tolerance was good with minor side effects unrelated to the patient's age. The uptake of the medium involves the entire liver and lasts for several hours, allowing tomography to be carried out. Intrahepatic lesions with a diameter of less than one centimeter may be demonstrated. Hepatography proves to be the most accurate method available at present for exploration of the liver.

Adolescent↗
PubMed1975

Renal hemodynamic response to l-dopa during acute renal failure in man.

Twelve patients with acute renal failure underwent L.dopa infusion into a renal artery and 133Xenon wash-out recordings before and during the infusion. Urine volume and sodium output were also compared during two 24 hours periods, before and after the procedure. Hemodynamic data were compared with data obtained from a matched group of patients receiving Furosemide (8 patients) in place of L.dopa. Only L.dopa infusion significantly increased outer cortical distribution (p less than 0.005 using paired t-test). No blood flow change could be demonstrated in any component nor did the drug improve urinary excretion or the general course of the disease. Control data shows that reduced cortical distribution is the most consistent feature of acute renal failure, so that L.dopa does partially improve intrarenal hemodynamics in this condition. The failure of the drug to restore kidney function may be explained by the following reasons: a) Inability of the agent to restore a normal wash-out pattern; b) Involvement of non-hemodynamic factors, as suggested by comparing similar wash-out improvements after L.dopa in acute glomerulonephritis and in reversible acute renal failure.

Acute Kidney Injury↗
PubMed1975

[Renal venous thrombosis in the adult].

Eleven cases of renal vein thrombosis (RVT) are reported, 9 of which presented with nephrotic syndrome (NS) and 2 with acute renal failure (ARF). Hematuria, enlarged kidneys, assymetric peripheral edema and collateral vein dilatations were the classic symptoms. Phlebography was employed in 101 suspected cases and permitted definitive diagnosis in 11 percent. Phlebography was performed in 13 percent of the NS cases and 11 percent of the ARF cases, but in none of the other cases. Fifteen kidney biopsies (KB) were performed in 8 patients, 6 with NS and 2 with ARF. In the 6 cases of NS, 4 presented a pattern of membranous glomerulonephritis and 2 had mild thickening of the basement membrane. This was confirmed by electromicroscopy in 5. In the 2 with ARF capillary dilatations, polynuclear infiltrates and interstitial edema was found. Repetitive KB, performed in 3 cases, revealed the same histological pattern in 2, while in the other case granular membranous deposits were found on the second biopsy that were not apparent in the first. This last patient was free from clinical manifestations at the time of this last biopsy. Immunofluorescent studies (iF) were performed on 7 KB of 5 patients, 4 with NS and 1 with ARF. Three of the 4 with NS presented a pattern of membranous deposits. On i.F one patient was found to have IgG and C3 deposits, one IgG and fibrinogen and one no detectable IgG, IgA, IgM, IgE, C3 or fibrinogen. The fourth with minimal histological changes was also negative for i.F, as was the case of ARF. Sequential treatment by heparin and antivitamin K was administered in 8 patients. Recovery occurred in 3 and stabilization in 4, while in 1 case this treatment was without effect.

Acute Kidney Injury↗