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Biomedical subjects

A Le Duc

Publications and source records attributed to A Le Duc.

159 records · Page 9Linked to original sources
PubMedDate not supplied

[First clinical experience with extracorporeal lithotriptor EDAP LT.02].

A preliminary study of the EDAP LT.02 extracorporeal lithotriptor is presented. The apparatus includes a double isocentric detection system (ultrasonographic and radiological), facilitating the in situ treatment of ureteric stones. Seventy patients with a total of 89 urinary stones were treated by primary extracorporeal lithotripsy (ECL) with no preliminary selection. 69 stones (77.5%) were located in the kidney and 20 stones (22.5%) were situated in the ureter. Anaesthesia was only required in 2 cases. The patients received an average of 1.2 lithotripsy sessions. Out of the 70 patients treated, there were 46 (66%) complete successes, 12 (17%) partial successes and 12 (17%) failures [corrected].

Adolescent↗
PubMedDate not supplied

[A procedure for avoiding reflux in uretero-ileal implantations during enterocystoplasty (author's transl)].

Excellent results are obtained when treating infiltrating bladder cancer without lymph node invasion, by means of a total prostatocystectomy and replacement enterocystoplasty using an ileal loop: 66 per cent survival after 5 years and 51 per cent after 9 years. It appeared logical to the authors to try to prevent urine reflux into the ureters in order to prolong survival. Their procedure consists of burying half of the length of the 4 cm long ureteral stump between the mucous and muscle layers, leaving the other half free in the ileal lumen. No cases of stenosis or reflex occurred during 10 consecutive ureteral implantations in 6 patients, but there has been an insufficient follow-up period for any definite conclusions to be drawn.

Humans↗
PubMedDate not supplied

[Developmental aspect of renal suppurations. Apropos of 2 cases].

The authors set out to differentiate between two types of renal parenchymal suppuration in the light of two personal cases treated recently - renal abscess and localized acute bacterial nephritis (LABN), which is perhaps no more than a preliminary stage in the formation of a renal abscess. Case 1 concerns a LABN, diagnosed by CT scan. The treatment was purely medical and monitoring scans show no anomalies. Case 2 was a gathered abscess, also diagnosed by CT scan, and treated by surgical drainage. The interest of the differentiation between these two types of suppuration is essentially therapeutic. Once gathered, the abscess must be drained surgically, whereas the LABN can be treated medically, with close supervision to ensure complete cure. The differential diagnosis between the two is mainly by scanner, with a study of the respective densities.

Abscess↗
PubMedDate not supplied

[The role of endoscopy in the diagnosis and treatment of keratinizing and desquamating malpighian metaplasia of the kidney pelvis].

Keratinized squamous cell metaplasia of the renal pelvis (KSMRP) is a rare lesion, difficult to differentiate from urothelial tumour on the basis of the usual morphological examinations. It is therefore usually diagnosed retrospectively, on histological examination of a nephroureterectomy specimen. However, as its benign nature justifies conservative treatment, preoperative recognition of this lesion is essential. Upper urinary tract endoscopy, which allows diagnosis and treatment of this disease, is therefore very important in this context. Endoscopy is indicated when KSMRP is suspected clinically in a doubtful case of urothelial tumour of the upper urinary tract, in a context of passage of soft stones or a history of renal stones or upper urinary tract infection. Ureteroscopy constitutes the first step to confirm the diagnosis. It must be completed by a percutaneous procedure to eradicate any residual lesion, which could be responsible for recurrence. We report a case of KSMRP in a solitary kidney treated by retrograde and percutaneous endoscopic surgery.

Diagnosis, Differential↗