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Biomedical subjects

G Benoit

Publications and source records attributed to G Benoit.

At least 253 records · Page 14Linked to original sources
PubMed1985

[Urologic complication of renal transplantation. Importance of the length of the ureter].

The authors report a series of 430 renal transplantations performed over five years. During this period, the surgical technique was modified to ureterovesical anastomosis. The urological complications--fistulae and stenosis--are discussed as a function of the site of the implantation, the position of the kidney, the type of anastomosis and the length of the ureter. The results show that transplantation in the iliac position gives rise to more complications than transplantation in the pelvic position. They also show that inversion of the superior pole of the kidney leads to a greater number of urological complications. In the series reported, ureterovesical anastomosis gave 6.7% of complications, against 12% for uretero-ureteral anastomosis, which also gave rise to a significantly larger number of fistulae. More detailed study of the series reveals a complication rate of 4.7% for ureterovesical anastomosis (out of 224 patients) against 4% for uretero-ureteral anastomosis, when the ureter was short (in both series). The dominant factor is therefore the length of the ureter; the longer it is, the greater the number of urological complications.

Constriction, Pathologic↗
PubMed1985

[A non-secreting bladder paraganglioma. A case report].

The authors report the case of a 43 year old patient hospitalized for hematuria extending over eight years. Cystoscopy revealed an endovesical lesion which was resected and diagnosed as a non-secreting vesical paraganglioma. At operation, the cervical localization of the lesion was treated by total cystoprostatectomy. Starting out from this case report, the authors discuss the difficulties of diagnosing non-secreting vesical paragangliomas, the difficulties of assessing their malignancy and therefore the difficulties of treating them.

Humans↗
PubMed1985

[Topographic anatomy of the caliceal stem: the colonic risk].

Body-section roentgenograms were taken of seventy five patients examined for non-urological complaints. These were studied and the axes of the ventral and dorsal calices were measure. The axis of the ventral calix passes through the left or right colon. The axis of the dorsal calix follows the avascular line and passes to the lateral border of the paravertebral muscles, avoiding the left and right colon. These anatomical data confirm that the dorsal calix is the route of choice in the percutaneous approach to the kidney.

Colon↗
PubMed1985

[Urologic manifestations of aortocaval fistulas].

The authors report two cases of aortocaval fistula, resulting from the rupture of an abdominal aneurysm, and revealed by lumbar pains and hematuria. In both cases, the left kidney was mute, and was possibly responsible for the hematuria.

Aged↗
PubMed1984

[Hemostasis of the preprostatic veins in total cystoprostatectomy. Anatomical bases].

An anatomical study has enabled the authors to propose a diagrammatic description of pre-prostatic veins, the haemostasis of which is one of the difficult stages in total cystoprostatectomy for cancer. These veins are surrounded by the pubovesical ligaments but they are separated from the membranous urethra by a cleavage plane which can be used to control venous bleeding.

Hemostasis, Surgical↗
PubMed1984

[Sarcoma of the bladder in adults].

The authors report five cases of sarcoma of the bladder and make a distinction between homotypical and heterotypical sarcomas and lymphosarcomas presenting specific therapeutical problems. The prognosis is severe because of very frequent local relapse. They recommend disregard of the invasion of the muscular wall, and the performance of total cystectomy following a positive histological diagnosis. In their view, this is the basis for the treatment of sarcomas.

Aged↗
PubMed1984

Anatomical bases of kidney transplantation in man.

Kidney transplantation is a well codified operation. The way to reduce surgical complications (urological and vascular) lies in a precise knowledge of the anatomy of the renal pedicle, as well as of the ureter and its vascularization. The choice of a site for implantation depends on anatomical arguments which aim at using a well vascularised ureter, and so a short one, and a renal pedicle without tension, with therefore a long or extended renal vein. A privileged site for transplantation is the right or left iliac fossa; transplantation in the lumbar fossa remains exceptional.

Histological Techniques↗
PubMed1984

Anatomical basis of the surgical approach to the membranous urethra.

The pars membranacea is the short segment of the urethra traversing the floor of the perineum. The main anatomical obstacles encountered in the approach to the membranous urethra are the perineal body posteriorly, and the deep dorsal vein of the penis and preprostatic venous plexus, anteriorly. These obstacles must be borne in mind when performing a surgical approach to the membranous urethra. The perineal body is the main obstacle to the perineal approach and can be avoided by incision of the sagittal raphes (anobulbar and rectourethral raphes) posterior to it and up to the apex of the prostate. When the trans-symphysial or transpubic approach is used, detachment of the suspensory ligament and roots of the penis allows exposure of the preprostatic venous plexus whose inferior part lies over the membranous urethra.

Abdomen↗
PubMed1984

Anatomical basis of total prostatocystectomy in man.

In the first part of this paper special emphasis is given to the anatomy of Denonvillier 's fascia which is derived from the prostatic capsule and covers the seminal vesicles, and to the preprostatic veins. In the second part devoted to the surgical technique of total prostatocystectomy the authors propose that the vesicoprostatic unit be freed by dissecting posterior to Denonvillier 's fascia. It is also proposed that the membranous urethra be sectioned prior to performing hemostasis of the preprostatic veins.

Fascia↗
PubMed1984

[What are the indications for nephrectomy in candidates for renal transplants].

The kidneys of a patient with renal insufficiency often retain an endocrine role which should not be overlooked, and they are sometimes capable of residual diuresis. A case history of acute pyelonephritis, the existence of infected stones, or problems of infected reflux, are all indications for nephrectomy. On the other hand, arterial hypertension or an uninfected reflux do not, in our view, constitute indications for this procedure. In cases of renal polycystosis, only those kidneys whose volume constitutes an obstacle to transplantation should be treated surgically.

Humans↗
PubMed1984

[Santorini's venous plexus].

This article provides an anatomical study of Santorini's venous plexus based on forty dissections. The authors present a sketch of the plexus and its housing and suggest surgical applications of this anatomic sketch.

Humans↗
PubMed1984

[The medio-femoral approach].

The authors report a series of thirty A. profunda femoris dissections by anterior approach: the medio femoral way, which is enabled to isolate an arterial segment of six centimeters.

Aged↗
PubMed1983

[Secondary tumors of the kidney].

The authors report twelve cases of secondary kidney tumors. In seven cases, they found antecedents of primary tumors, contrasting with the clinical, urographic and echographic data suggestive of a typical kidney tumor. Only arteriography, when performed, could visualize a hypovascularized tumor. The authors make a distinction between two situations: unilateral kidney tumors, which require total nephectomy, since, in 95% of cases, they are primary growths, and bilateral tumors, which require further exploration, since, in 20% of cases, they are metastatic proliferations.

Adult↗