Biomedical subjects

Mohammed Lezrek

Publications and source records attributed to Mohammed Lezrek.

4 recordsLinked to original sources

PubMed2003

Modified Denis technique: a simple solution for maximal hemostasis in suprapubic prostatectomy.

OBJECTIVES: To describe our experience with a modified Denis technique for hemostasis in suprapubic prostatectomy. METHODS: We reviewed the charts of 78 patients who underwent suprapubic prostatectomy using a modified Denis technique between September 1996 and June 2001. After adenomectomy, we performed a bladder neck removable partition purse-string suture, and the prostatic fossa was drained. Patients were followed up for hemorrhagic complications and bladder neck strictures for 12 months. RESULTS: The mean intraoperative hemorrhage amount was 264 mL (range 160 to 510). The postoperative irrigating fluid volume was 2000 mL (range 500 to 4500), and the bladder irrigation duration was 24 hours in 70 patients (89.8%) and 48 hours in 8 patients (10.2%). Postoperative hemorrhage, measured by the prostatic fossa drain, was 0 mL in 48 patients and had a mean value of 55 mL (range 10 to 90) in 30 patients. No hemorrhagic complication was noted. None of our patients had transfusion, bladder clot formation, or late hemorrhage. One case (1.3%) of bladder neck stricture developed. CONCLUSIONS: This modified Denis technique is very effective and easy to perform and to learn. It has solved all our hemorrhagic problems in suprapubic prostatectomy.

Aged↗

PubMed2002

[Solitary giant retroperitoneal neurofibroma].

Retroperitoneal nerve sheath tumors (RNST), which include benign and malignant schwannomas and neurofibromas, are rare. A 71-year-old woman was complaining of flank pain. Ultrasonography and computed tomography revealed a retroperitoneal tumor measuring 22 x 15. It was successfully removed and extirpated through a midline laparotomy incision. It weighed 7 kgs. Histochemical and immunohistochemical staining of the tumor are useful for the diagnosis of solitary neurofibroma. After a two year follow-up, the patient is in good health, asymptomatic and without evidence of local recurrence.

Aged↗

PubMed2002

[Treatment of renal tumors with radiofrequency: preliminary results].

OBJECTIVE: To study the feasibility and the innocuity of the treatment by radiofrequency of small renal tumours. MATERIAL AND METHODS: From June 2000 to September 2001, 10 renal tumours in 6 patients were treated by radiofrequency. The mean age of the patients was 57 years. The mean tumour diameter was 20 mm. Indications for partial surgery were 3 solitary kidneys, one patient with chronic renal failure, one patient with Von Hippel Lindau disease and one patient in whom several angiomyolipomas were discovered in the right kidney. 4 patients were treated via a lumbar incision and 2 were treated percutaneously (one with ultrasound guidance and the other with computed tomography guidance). Patients were reviewed by imaging (CT and/or MRI) with injection of contrast agent to demonstrate complete devascularization of the tumour. RESULTS: Treatment lasted an average of 180 minutes. The intraoperative complication rate was 16%. The mean hospital stay was 9 days (4 days for the percutaneous route). Nine tumours (5 patients) were devascularized after a single session. One patient (treated via the percutaneous route under ultrasound guidance) showed persistence of tumour tissue (identified by CT). A second session, performed 4 months later, allowed complete devascularization of the tumour. The mean follow-up is 13 months. CONCLUSION: This study demonstrates the feasibility and safety in terms of renal function of radiofrequency treatment of small renal tumours. However further studies are necessary to precisely define the radiological criteria of tumour necrosis and to evaluate the long-term results of this method (outcome of necrotic tumour tissue, metastatic risk, cancer recurrence along the needle track in the case of a percutaneous approach). This treatment must be reserved for selected patients.

Adult↗

PubMed2002

[Psoas tumors].

The authors report a case of benign tumor of the psoas muscle occurring in a 36-year-old man. The diagnosis was based on computed tomography and the patient underwent tumorectomy by an extrapoeritoneal approach. The authors emphasize the ratity f psoas tumors that are usually malignant and the advantage of computed tomography and percutaneous biopsy. Treatment must be incorporated into a multidisciplinary approach in which surgery plays a leading role and must be based on the treatment of soft tissue tumors.

Adult↗