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Biomedical subjects

G Arvis

Publications and source records attributed to G Arvis.

At least 19 recordsLinked to original sources
PubMed1992

[Ovarian vein syndrome. Apropos of a case].

The ovarian vein syndrome is due to ureteral compression caused by a dilated ovarian vein. The authors describe the clinical case of a young ten-week pregnant woman in whom the ovarian vein syndrome was revealed by a pain in the lower right quadrant of the abdomen associated with fever. Excretory urography, retrograde uretero pyelography and computed tomographic examination were performed. The principal clinical and radiological aspects of this syndrome are discussed.

Adult↗
PubMed1991

[Lithotripsy for pelvic lithiasis with the Dornier system with radiological location].

The authors report their results with 58 patients presenting with pelvic lithiasis who were treated by extracorporeal lithotrity with the Dornier HM3 system. They describe the appropriate procedure of analgesia and emphasize the difficulties to locate the pelvic calculi, which sometimes requires resorting to urography during the treatment. Out of the 58 cases, success was total in 55 (94.83%), after one session of lithotrity in 52 of them and after two sessions in 3. In 2 of the 3 cases of failure, the calculi were monohydrated calcium oxalate stones located very high in the ischiadic incisure. Five cases of presacral lithiasis were treated in the ventral position, successfully in 3 cases and without success in 2. Thus it appears that shock wave lithotrity with the Dornier HM3 system with radiological location is highly effective for the treatment of pelvic lithiasis.

Adolescent↗
PubMed1991

[The value of using a facilitating dose of papaverine chlorhydrate during cavernometry].

In order to establish diagnostic cavernometric criteria, we selected 63 patients who did not respond positively to visual sexual stimulation. They were subjected to the following protocol including Rigiscan monitoring of 2 or 3 nights erections for, hormonal assays, penile doppler, cavernometry and cavernography. Intracorporeal injection of 8 mg of papaverine was performed during the hemodynamic tests. Our results showed that the erection maintenance blood flow and the maintenance index are statistically reliable diagnostic criteria for venous leaks (the maintenance index is more accurate). The use of 8 mg of papaverine reduces the incidence of false positive results without significant hemodynamic changes. In order to exclude psychogenic false positive patients, it is recommended to select the candidates for cavernometry after papaverine tests and nocturnal penile tumescence and rigidity monitoring.

Adult↗
PubMed1990

[The treatment of pelvic ureteral calculi using the Dornier lithotripter. Apropos of 20 cases].

The authors report a series of twenty patients with pelvic ureteric stones treated by the Dornier lithotriptor. Sixteen men and 4 women were treated over a period of 8 months (November 1988 and June 1989). A single treatment session was sufficient to ensure destruction and elimination of the stones. This technique, which does not require anaesthesia, but at most simple neuroleptanalgesia, has a low morbidity (15%). In the series of 20 patients: the stones were completely eliminated in 16 cases, 1 case was a failure at 3 months and 3 patients were not reviewed. These results are assessed with a minimum follow-up of three months and a maximum follow-up of eight months. This simple, rapide, repeatable and effective therapeutic technique appears to constitute an alternative to operative endoscopy (flexible or rigid ureteroscopy) in the treatment of stones of the pelvic ureter.

Adult↗
PubMed1990

[Milk of calcium syndrome: a diagnosis to be made before the scheduling of lithotripsy. Consideration apropos of 6 cases].

The authors report six cases of milk of calcium syndrome. As in previously published cases, the diagnosis was established by the film taken in the standing position: the "lithiasic density" shrinks, densifies and exhibits a horizontal upper edge. Four patients were at first mistakenly diagnosed as having urinary lithiasis for which extracorporeal lithotripsy was scheduled. In one case, the lithotripsy was actually performed and the diagnosis of milk of calcium disease was established only immediately after the procedure. In another patient, lithotripsy was performed because small stones were thought to be present in the milk of calcium. In the two other cases, the diagnosis was made on the day before scheduled lithotripsy and this procedure was therefore cancelled. The purpose of the authors in reporting these cases is above all to point out the diagnostic value of a plain film of the abdomen in the standing position. Diagnosis must be made in time to avoid extracorporeal lithotripsy since, in milk of calcium syndrome, this procedure is illogical, inefficient and probably more hazardous than useful. On the basis of the six cases reported herein and of data from the literature, several characteristics of milk of calcium syndrome can be emphasized. Milk of calcium syndrome predominantly affects individuals with a positive personal or family history for renal lithiasis. It occurs in both sexes and all age groups, including childhood. Milk of calcium syndrome complicates partial or total dilatation of the urinary tract. Crystallization may be of the phosphatic or oxalic type. Concomitant urinary tract infection is common.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1989

[Infection of the sperm in male sterility].

Sperm infection is a classic cause of infertility. But, it cannot be considered without a minimum of precautions. First, infection of the sperm must be proven (presence of altered leucocytes, even higher than 10(5) or 10(6)/ml is not sufficient). What are the consequences of sperm infection? For many germs, especially chlamydiae and mycoplasma, the effect on sperm is not recognized or demonstrated. Once the infection is recognized, an etiology must be found: unrecognized chronic urethritis, prostatitis and/or chronic vesiculitis, chronic epididymitis. The infection must be adequately treated: according to the germ, according to the results of the resistance to antibiotics, according to the etiology. The author concludes that a true sperm infection is very rare; but it must be looked for as soon as it is suspected, especially in patients with a recent history of genital infection. Therefore an effective treatment of infertility is possible.

Antibodies↗
PubMed1988

[Priapism after cavernography. Report of an original case].

The authors report a case of priapism following cavernography with secondary fibrosis of the corpora cavernosa demonstrated histologically. They stress the importance of a rigorous cavernography technique which must take account of the respective tissue toxicity of the various contrast media used.

Adult↗
PubMed1987

[Transurethral resection of the prostate under local transurethral anesthesia. Apropos of 18 cases].

The authors have used this method in 14 patients with a total of 18 transurethral resections under local anaesthesia. This technique is reserved for patients unsuitable for general anaesthesia or loco-regional anaesthesia and in whom prostatic resection is essential. The mean mass resected is 10 g, but with experience, it should be possible to resect 20 to 30 g. The technique is simple and the results are comparable to those of standard transurethral resections, apart from the fact that these patients are usually particularly elderly or fragile subjects.

Aged↗
PubMed1987

[The value of echography in scrotal contusions. Personal experience apropos of 20 cases].

We report a serial case study of 20 patients presenting scrotal contusions and for whom an emergency scrotal ultrasonography was performed. This investigation is not a luxury. It was a useful confirmation diagnostic tool for hematocele in 1/3 of cases (7/20) as well as for the detection of associated epididymal and or testicular lesions. In 2/3 of cases (13/20) it detected lesions unsuspected by clinical examination so that a therapeutic decision was taken promptly. Scrotal echography is therefore a useful emergency tool not for major trauma where the surgical decision is evident, but for apparently benign trauma where the clinical examination is currently deficient and needs provided a trained ultrasonography operator is available.

Adult↗
PubMed1987

[Effects of chemical and radiographic factors on the treatment of renal lithiasis using extracorporeal external shock-wave lithotripsy].

The systematic collection and filtration of urine for three days after extracorporeal shock wave lithotripsy (ECSWL) has enabled the chemical analysis of the stones treated in 90% of cases. We have been able to demonstrate a correlation between the chemical nature and the mode of fragmentation of the stones. Calcium oxalate monohydrate, brushite and cystine stones form fairly large, well separated, angular fragments with sharp edges. Calcium oxalate dihydrate, calcium phosphate and magnesium ammonium-phosphate (struvite) stones are reduced to an amorphous dust. These findings have direct therapeutic implications, as it is absolutely essential to make sure that no large stone fragments are left in the urinary tract after lithotripsy. These elements led us to try to evaluate the chemical nature and the hardness of the stones on the basis of the radiological findings, in order to adopt the best possible therapeutic strategy. Calcium oxalate dihydrate stones have a striated, spiky and non-homogeneous appearance on plain X-rays. They are frequently responsible for filling defects on intravenous pyelography. They are friable stones which are easily fragmented. In contrast, calcium oxalate monohydrate stones present a regular homogeneous opacity on plain X-rays with no filling defect on intravenous pyelography. These stones are hard and are broken up, with difficulty, into large fragments on the initial fluoroscopic images at the start of treatment. Many stones have a mixed composition (calcium oxalate monohydrate, calcium oxalate dihydrate and calcium phosphates): the plain X-ray does not provide sufficient information and the presence of a filling defect on intravenous pyelography may or may not be suggestive of a friable stone.(ABSTRACT TRUNCATED AT 250 WORDS)

Calcium Oxalate↗