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Biomedical subjects

G Serment

Publications and source records attributed to G Serment.

67 records · Page 4Linked to original sources
PubMed1977

[Prognosis of visceral and osseous metastases of differentiated thyroid cancers. 24 cases].

Twenty four cases of differentiated thyroid carcinoma with distant metastases are analysed. Prolonged survival periods are possible. The best prognosis in papillary forms is stressed. Metastases fixing I131 progress more slowly, as a result of treatment with radioactive iodine but apparently also by virtue of the higher degree of differentiation of such metastases. One case of apparent cure of pulmonary metastasis after treatment with radioactive iodine is described. Surgery and external radiotherapy retain a place of choice in the treatment of metastases. In our experience, chemotherapy has been disappointing.

Adolescent↗
PubMedDate not supplied

[Flow cytometry in bladder lavage fluid for the diagnosis and surveillance of bladder tumors. Preliminary results].

The authors evaluate the accuracy and practical applications of flow cytometry (FCM) on bladder lavage fluid in the diagnosis and follow-up of bladder tumours. The apparatus used was a Coultronics Epics Profile II cytofluorograph. Two hundred and fifteen samples were obtained with a yield of 86%. The specimens were preserved in ethanol. The staining was performed on whole cells with preservation of the cytoplasm. The analysis of a control group of 45 patients confirmed that the FCM study of ploidy was specific (0.97 for normal bladders and 0.8 for inflammatory lesions). Four aspects were evaluated: Correlation between FCM and the histological type of the tumour: a significant difference was observed between the control group, the invasive tumour group (p < 0.01) and the carcinoma in situ group (< 0.001). A significant difference was observed in the case of high-grade PTA and PT1 tumours. No significant difference was observed between FCM and classical cytodiagnosis when this technique was performed by a trained cytologist. Predictive value of FCM for the recurrence of PTA and PT1 tumours: 40 patients were followed with a mean follow-up of 13 months. The relative risk of recurrence in the case of a tumour with an abnormal FCM was 2 (p < 0.05). FCM and monitoring of conservatively treated tumours: 30 patients with normal endoscopic examination after endoscopic resection of a PTA or PT1 tumour underwent cytometric analysis and cytodiagnosis. In the case of an abnormality on cytometry, randomised bladder biopsies and urography were performed. The positive predictive value for the presence of a lesion not diagnosed by cystoscopy and detected by FCM was 0.38 +/- 0.26. FCM and intravesical chemotherapy: 16 patients with PT1 tumours and abnormal FCM received BCG therapy (11 patients) or mitomycin C instillations (5 patients). A significant difference (p < 0.01) was observed between the 2 treatments in terms of normalisation of cytometry.(ABSTRACT TRUNCATED AT 400 WORDS)

Flow Cytometry↗
PubMedDate not supplied

[Impotence caused by venous leakage. Placement of a prosthetic venous bandage].

A new treatment of impotence by venous leakage is reported. It consists of tying the dorsal and lateral aspects of the cavernous body with a bandage of synthetic material. The bandage, inserted on the bulbo-cavernous muscles, restores a "carter effect" and prevents venous leakage during erection. This technique has been used in 20 patients, with satisfactory results in 10 who were followed up for more than 4 months.

Blood Vessel Prosthesis↗
PubMedDate not supplied

[Bret's plastic operation on the uterus (author's transl)].

A comparison of our results with those in the literature confirms that Bret's plastic operation on the uterus is valuable in the cure of septate uterus with two cavities in infertile patients who have had several spontaneous abortions. In spite of this it is advisable to take care to select cases and to be guided by the classical indications for plastic operation on the uterus. The number of abortions (more than 2) is the major criterion but it is often difficult to confirm that the infertility which results is due to the malformation and not to associated pathology. The problem is even more complex when it is a question of sterility rather than repeated abortions.

Abortion, Incomplete↗
PubMedDate not supplied

Construction of a urinary sphincter by means of an electrically stimulated striated muscle: experimental procedure and urodynamic results on canine model.

A canine model of urinary neosphincter using electrically stimulated autologous striated muscle is described. The superior belly of canine sartorius was activated by a pacemaker with an intermittent low frequency stimulation (0.5-1 pulse per sec) during 7 weeks. Then, the muscle graft was passed around the urethra and sutured back on to itself to form a neosphincter. The surgical procedure was easy to perform and with no complication. Urethral pressure profile was performed initially (T0), and when the muscle was in peri-urethral position, before (T1) and during electrical stimulation (T2). The continence parameter readings (maximal urethral closure pressure MUP, functional length FL, continence zone CZ, and continence area CA) increased from T0 to T1, and from T1 to T2. We noted: 1) 28%, 38%, 52%, and 86% increases for the MUP, FL, CZ, and CA respectively from T0 to T1, 2) 10%, 41%, 30%, and 43% increases for MUP, FL, CZ, and CA respectively from T1 to T2. Chronic low frequency stimulation could transform a skeletal fast-twitch type 2 muscle into a slow-twitch fatigue-resistant type 1 muscle. In this study, morphological changes of the stimulated muscle were noted, whereas phenotype was unchanged. This dynamic autologous neosphincter may be a new alternative to the artificial urinary sphincter prosthesis with fewer complications. Further studies are ongoing to evaluate the efficacy of such a neosphincter as continent system for bladder substitution after pelvic exenteration for pelvic cancers.

Animals↗
PubMedDate not supplied

[Water and electrolytes disorders in apudocarcinomas (author's transl)].

The authors report an analytic study of hydroelectrolytic disorders in patients with APUD tumors. In most of the cases a diarrhea occurs. The type of this diarrhea is: -- a motrice diarrhea (in the great majority of carcinoid tumor and medullary carcinoma of the thyroid); -- a secretory diarrhea (W.D.H.A.): it is the case in gastrinoma (gastric hypersecretion), in secretinoma (pancreatic hypersecretion) and in vipoma (intestinal hypersecretion). The others disorders could be no diarrhea dependant (hyponatremia by ADH hypersecretion, hypercalcemia). The personal cases of the authors are: 12 medullary carcinoma of the thyroid, 19 enteraminoma and 2 others apudomas.

Diarrhea↗