תוצאת חיפוש

Sonographic Demonstration of a Levonorgestrel-Releasing LUD

Yaron Zalel, Doron Kreizer, David Soriano, Reuven Achiron

Ultrasound Unit, Obstetrics and Gynecologic Dept., Sheba Medical Center, Tel Hashomer and Sackler School of Medicine, Tel Aviv University

Mirena, a new intra-uterine device (IUD) introduced in Israel during the past year, releases 20 mcg/day of levonorgestrel for 5 years. It has the advantages of reduced pregnancy rates and diminished menstrual blood loss, together with a low risk of pelvic inflammatory disease compared with current IUD's.

It has a typical sonographic appearance, differing from that of regular IUD's, which was demonstrated in all 15 women examined in this study. Its sonographic appearance includes both proximal and distal ends of the vertical arm of the device, which extend into the internal cervical os and fundal region, respectively. Acoustic shadowing between both ends defines the location of the device, which should help avoid consultations due to "lost IUD's."

Trisomy 18 Anomalies on Sonography and Calculated Risk of Chromosomal Abnormalities During First Trimester

Ron Maymon, Arie Herman, Eli Dreazen, Mati Glasner, Zvi Weinraub

Ultrasound Unit, Dept. of Obstetrics and Gynecology, Assaf Harofeh Medical Center, Zrifin, and Sackler School of Medicine, Tel Aviv University; and Women's Health Center, Kupat Holim, Holon Branch, Tel Aviv-Jaffa District

Trisomy 18 is a chromosomal disorder giving multiple anomalies. Its frequency depends on maternal age. We report a 28-year-old woman in her first pregnancy, who underwent first trimester scanning for screening. Due to increased nuchal translucency and exomphalos, chorionic villous sampling was performed. Cytogenetic diagnosis was trisomy 18 and termination of pregnancy was carried out immediately.

Percutaneous Ablation of Malignant Kidney Tumors in Rabbits by Low Frequency Radio Energy

Boaz Moskovitz, Ofer Nativ, Edmond Sabo, Yousef Barbara, Daniel Mordohovich, Yoseph Kaftori, Arie Shalhav, Benad Goldwasser

Bnai-Zion Medical Center and Bruce Rappaport Faculty of Medicine, The Technion, Haifa

Radio-frequency (RF) current has been used successfully to ablate normal human tissue. To investigate further the clinical application of this modality in tumors, we studied the potential of using RF percutaneously to destroy experimental kidney tumors. 35 outbred albino rabbits underwent direct-implantation of renal VX2 tumor during open surgery. After 21 days, ultrasonography was performed to show tumor presence and size. A shielded RF needle was designed to be inserted percutaneously through an introduction needle. An electrical insulation shield covering the RF needle was retractable, controlling the length of exposure of the RF needle inside the tissue. 22 days after tumor implantation, RF was applied via this special needle using a ZoMed International RF generator. In one group of rabbits the procedure was performed under direct vision during open surgery, while in another group treatment was percutaneous, the needle guided by palpation of the tumor. Rabbits were killed 3 days later and revealed 4-25 mm intra-tumoral RF-induced lesions. A direct relation was found between lesion size and the power and duration of RF applied (at 7.5 W, R=0.48, and P=0.32). Based on our preliminary results we can conclude that RF may have clinical applications in the near future for percutaneous local tumor control in parenchymal organs.

An Achondroplastic Dwarf with Paraplegia

A. Rakier, G. Sviri, M. Feinsod

Dept. of Neurosurgery, Rambam (Maimonides) Medical Center, Rappaport Faculty of Medicine, The Technion, Israel Institute of Technology, Haifa

A 30-year-old female achondroplastic dwarf developed a progressive gait disturbance erroneously attributed to her hydrocephalus and deformities of both legs. Her condition deteriorated into flaccid paraplegia with anal and urinary incontinence. CT revealed extreme spinal stenosis typical in achondroplasia (shallow vertebbody, short pedicles, and hypertrophy of intervertebral joints) together with disc protrusions. Wide laminectomy of the lumbar vertebrae resulted in complete amelioration of all the neurological deficits. Progressive paraplegia is a rare complication of achondroplasia; its early recognition and surgical treatment is very rewarding.

Salivary Gland Endoscopy: a New Technique for Diagnosis and Treatment of Sialolithiasis

O. Nahlieli, A.M. Baruchin, H. Librus, D. London

Oral and Maxillofacial Surgery Unit, Plastic Surgery Service and Radiology Institute, Barzilai Medical Center, Ashkelon

The use of an endoscopic, minimally invasive technique for the removal of salivary gland stones from the submandibular or parotid duct is described. A 2.0-2.7 mm endoscope is inserted into an incision in the parotid or submandibular duct. When the stone is visualized through the endoscope it is removed using suction and forceps. We used this technique in 45 cases for removal of calculi, screening the ductal system to rule out residual calculi. and determination of ductal dilatation. The success rate was 80% and there were no major postoperative complications. To the best of our knowledge these are the first such cases reported in Israel.