תוצאת חיפוש

Photodynamic Therapy of Nasal Basal Cell Carcinoma

R. Haddad, M. Cohen, O. Kaplan, R. Greenberg, H. Kashtan

Dept. of Surgery, Tel Aviv-Sourasky Medical Center

Photodynamic therapy (PDT) is a noninvasive modality used topically for several skin cancers. We evaluated the effects of PDT on basal cell carcinoma (BCC) of the nose, using aminolevulinic acid (ALA) as a photosensitizer and a non-laser light source (Versa-LightTM). The advantages of this light source are synergistic, hyperthermia and fewer side effects.

A paste of 20% ALA was applied topically to biopsy-proven BCC of the nose. Lesions were covered with occlusive light-shielding dressing and after 18 hours they were submitted to 10 minutes of exposure to the light. Initial evaluation was made after 21 days and every 3 months thereafter. Patients who did not respond after 2 treatments were referred for surgery.

Mean follow-up in 31 patients was 19 months (range 6-36). There were no significant side-effects. There was complete response in 24/27 (88.9%), in whom there was recurrence in 2/27 (7.4%).
 

Surgical Repair of Myxomatous Mitral Valve

D. Bitran, O. Merin, I. Dzigivker, D.Rosenmann, S. Od-allah, S. Silberman

Depts. of Cardiothoracic Surgery and of Anesthesiology and Cardiology; Shaare Zedek Medical Center, Jerusalem

Myxomatous mitral valve disease is now the most common cause of mitral regurgitation in the western world. Repair of the leaking valve has become standard surgical procedure during the past 2 decades. Between 1993-1999 we performed 113 repairs of the mitral valve. In 25 patients the etiology was myxomatous degeneration (no mortality). Long-term clinical results depend on patients' functional class at surgery. Based on this fact, and the good surgical results, it is recommended to refer such patients even with severe mitral incompetence for surgery at an early stage, even if symptoms are minimal.

Antioxidant Profile of Human Saliva and its Biological Significance

R. M. Nagler, A. Z. Reznick

Dept. of Oral and Maxillofacial Surgery, Salivary Clinic and Oral Biochemistry Laboratory; Rambam Medical Center and Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa

Saliva is the first biological medium to come in contact with materials entering the body through the oral cavity. These materials are contained in food and drink (or inhaled as volatile ingredients). Accordingly, saliva contains various defense mechanisms which have been thoroughly investigated. They include immunological and enzymatic systems aimed at pathological microorganisms. Saliva also can protect the mucosa against mechanical insults and when required, promote its healing via agents such as the epidermal growth factor.

Another defense mechanism in saliva which has been gaining increased attention and seems to be of paramount importance is its antioxidant system. We discuss both the molecular and enzymatic components of the salivary antioxidant system in respect to mixed, parotid, submandibular and sublingual saliva and under various physiological conditions of secretion.

Screening for Early Detection of Prostatic Cancer

A. Neheman, Y. Shotland, Y. Metz, A. Stein

Dept. of Urology, Carmel Hospital, Lady Davis Medical Center, Haifa

Prostatic cancer (PC) is second only to lung cancer as a cause of cancer mortality in men word-wide. In Israel it is the most common cause of cancer mortality in men, after lung cancer and colo-rectal cancer.

We screened, for the first time in Israel, for prostatic cancer using serum levels of PSA and a digital rectal examination (DRE). The purpose was not only to diagnose PC but also to increase public awareness of the condition.

300 men in the Haifa area who met statistical criteria for early diagnosis of PC participated. They filled a questionnaire regarding risk factors for PC (age, family history (FH) of prostatic and breast cancer, cigarette smoking, alcohol consumption, previous PSA sampling) and were examined. Those who had out-of-ragne, age-related PSA values, or a pathologic DRE underwent trans-rectal ultrasound (TRUS) examination and guided biopsy of the prostate. Those with a positive biopsy for PC underwent radical prostatectomy or radiation therapy.

41 (14.3%) had out-of-range, age-related PSA levels and 10 (3.5%) had a pathologic DRE. 39 (13.3%) underwent TRUS and biopsy and 6 (2.04%) had clinically significant PC, all early stages (Gleason 4-6).

Correlation between age and PSA has been proven statistically significant (p<0.05). Symptoms of urinary tract obstruction and nocturia were related to a high PSA (p=0.035 and 0.002, respectively). Those with PC had at least 1 symptom of urinary tract obstruction; 6 (15.3%) who underwent TRUS and biopsy and a FH of prostate cancer. However, no subject with a FH of PC had biopsy-proven cancer. Those with PC had PSA values from 4.9 to 31.8 ng/ml (9.6 median). Age-related PSA had a positive predictive value of 17.1%.

Results of our annual screening for early detection of PC using age-related PSA, and DRE are encouraging: cases detected were clinically significant and treatable. It would appear that screening for PC will result in decreasing the incidence of metastatic cancer and therefore mortality. 
 

A Molecular Method of Diagnosis of Congenital Adrenal Hyperplasia

Shoshana Israel, Chaim Brautbar

Tissue Typing Unit, Hadassah Medical Center, Jerusalem

Congenital adrenal hyperplasia (CAH) is caused mainly by deficiency of the 21-hydroxylase enzyme. The disease may appear in the classical salt-losing, simple virilizing forms or as a mild, nonclassical form. 21-hydroxylase is encoded by the CYP21B gene on the short arm of chromosome 6, in the midst of the human leukocyte antigen (HLA) complex, between HLA Class I and Class II regions.

We describe a method for identifying mutations in the CYP21B gene. It is based on amplification of the gene using the polymerase chain reaction and identification of mutations with sequence-specific oligo-probes. The mutations identified were: V281 and P30L responsible for nonclassical CAH, and I2 splice, Q318X, I172N, cluster E6, and a deletion including 8bP in the third exon (8bP del) responsible for the classical form of CAH.

We also analyzed 2 families affected with the classical form of CAH which demonstrate possible complications in genotyping. Typing for HLA haplotypes can be helpful in certain cases, as demonstrated in 1 of the families presented. In this case it was necessary to distinguish between 2 possible genotypes: 1 with the mutations in tandem on 1 chromosome and the other with the mutated genes on both chromosomes. HLA haplotyping enabled the assignment of the mutations to the relevant chromosomes and thus allowed correct genetic counseling.

The other family demonstrated the importance of CYP21B genotyping in individuals with the nonclassical form of CAH. This form may consist of 1 mild and 1 severe mutation, representing a serious potential for transmitting the classical form of CAH.

Assisted Reproductive Technologies Reported in Israel National Registry, 1995 and 1996

V. Insler, O. Gonnen, D. Levran, Y. Lotan, B. Fish, G. Potashnik, A. Kogosovsky, R. Ron-El

Committee of the Israel National Registry Assisted Reproductive Technologies*

National registration of the results of assisted reproductive technology (ART) is maintained by many countries. The Israel Committee for Registry of ART asked 19 in-vitro fertilization (IVF) units in 1995 and 20 in 1996 to report on their activities and results.

Data were collected by questionnaires and analyzed by computer. The most common ovarian stimulation was the combination of GnRH agonist and gonadotropins. There were 10,89 treatment cycles in 1995, of which 45% were with intracytoplasmic sperm injection (ICSI). In 1996, of 12,72 cycles, 54% were with the ICSI procedure. Embryos were transferred into the uterine cavity in 90% of the conventional IVF cycles and in 95% of the ICSI cycles. The overall pregnancy rate was 22% per embryo transfer in the conventional IVF and ICSI cycles. The delivery rate was 13.7% and 15.4% per embryo transfer in the conventional IVF and ICSI cycles, respectively. The rates for abortion and tubal pregnancy were 24% and 1.3%, respectively.

These results are better than in previous years and are comparable with results in some western European countries. Efforts are being made to convert the registry into a real-time computerized system.

Committee of the Israel National Registry of ART.

Advantages of Standardized Protocol for Oral Rehydration in Acute Pediatric Gastroenteritis

Avi Weizman, Ahmed Alsheikh, Laura Herzog, Asher Tal, Rafael Gorodischer

Pediatric Depts. A and B, Soroka Medical Center; and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheba

Oral rehydration (OR) for acute gastroenteritis in infants and children has been shown to be as effective as IV therapy, with less discomfort and lower costs. In this retrospective study we compared 2 pediatric wards, in 1 of which only a standardized, simplified, bedside protocol, based on American Academy of Pediatrics guidelines, was used.

There were no significant clinical characteristics in the 208 patients. In the ward which used the above protocol, OR utilization was significantly more frequent than in the other ward (48% versus 15%), thus saving equipment costs of nearly $1,000/3 months. There were no significant differences in outcome between the wards.

We conclude that introducing a standardized management protocol may increase OR utilization in hospitalized children with acute diarrhea.
 

Penile Reconstruction after Complete Glans Amputation during Ritual Circumcision

Ofer Z. Shenfeld, Dean Ad-El

Depts. of Urology and of Plastic and Reconstructive Surgery, Hebrew University-Hadassah Medical Center, Jerusalem

Circumcision, so commonly performed, is considered a safe procedure rarely associated with significant complications. A case of complete amputation of the glans penis during neonatal circumcision is reported. The glans was successfully reimplanted, with good post-operative functional and esthetic results.

The Zavanelli Maneuver - Back to the Womb

R. Geist, Y. Yekel, B. Abramov, S. Grisaru, A. Samueloff

Obstetrics and Gynecology Dept., Shaare Zedek Medical Center, Jerusalem

The Zavanelli maneuver is the manual replacement of a partially-born fetus due to severe shoulder dystocia. It is described in obstetrical textbooks as being among the last to be tried in a series of maneuvers to rescue the fetus with severe shoulder dystocia, as it is considered a very difficult and heroic maneuver. Few obstetricians have seen it and fewer have done it themselves. It is even more rare when a single obstetrician has done the Zavanelli maneuver repeatedly. Therefore, both experienced obstetricians and certainly young residents are fearful when they have to use this maneuver and can lose control in cases of shoulder dystocia.

We have found descriptions of 93 cases of use of the Zavanelli maneuver in vertex presentations. We also describe a recent case in our experience. We conclude that this maneuver is safe and not too difficult to perform even without previous experience. Fetal and maternal complications are few, but there is of course a bias against reporting bad results.

We recommend that every obstetrician become familiar with this maneuver so as to feel sure that it is safe for him to use in severe cases of shoulder dystocia.

Coloring the Floor of Schlemm's Canal in Deep Sclerectomy

Ben Zion Silverstone

Eye Dept., Shaare Zedek Medical Center, Jerusalem

Increased intraocular pressure in glaucoma, resistant to maximal tolerated medical therapy, can be relieved by deep sclerectomy. Its advantage over classical trabeculotomy is fewer postoperative complications. This probably results from its being relatively noninvasive, since the anterior chamber is not penetrated.

Successful deep sclerectomy requires preservation of the trabeculo-descemetic membrane, which forms part of the floor of Schlemm's canal. Aqueous flows from the anterior chamber across the trabeculo-descemetic membrane and into the ocular venous drainage. Despite the importances of its preservation, during deep sclerectomy it is perforated in 10-15% of cases.

Coloring the endothelium lining the floor of the canal with gentian violet solution improves visualization of the membrane and thus aids in its preservation. Its use makes the procedure easier and should improve results.

Juridical and Halachic Aspects of Postmortem Sperm Procurement

Ya'akov Ariel, Moshe Vermout, Pnina Abramovitz-Shneider, Avinoam Shuper

Institute of Halachic and Ethical Aspects of Medicine, Ramat Gan

The ability to fertilize human ova with sperm retrieved soon after death has been utilized in Israel and in other countries. However, postmortem sperm procurement (PMSP) has significant Halachic, juridical and ethical implications with regard to both the action of sperm and its implications for mother and offspring. In specific situations, and with reliable supervision aimed at preventing sperm interchange, Halacha may allow the procedure, while the juridical approach in such a situation is not as yet well established.

As for Halacha, even if a son is born, the widowed mother will still be obligated by the Halacha of yibum (marrying the deceased husband's brother). The child's rights as heir, aspects of implications for its future life, or even social aspects of PMSP, all are factors to be seriously considered before PMSP is performed, without bias by temporary emotions. Thus, PMSP should be reserved for only very special circumstances, and only after consultation with the appropriate medical, Halachic, juridical and ethical experts.

Problems in Fetal Monitoring: Characteristics of Risks for Malpractice Suits

Moshe D. Fejgin, Yael Gershtanski, Talia Halamish-Shani

Dept. of Obstetrics and Gynecology, Meir Hospital, Kfar Saba; and Medical Risk Management Co., Tel Aviv

Medical malpractice suits in obstetrics comprise about 10% of all claims against medical institutions in Israel. A significant proportion are due to failures relating to fetal monitoring. We studied the characteristics of 102 of 4125 obstetrical cases reported to the Medical Risk Management Co. as being at risk for a malpractice suit.

The cases were divided into those with medical management failures (misinterpretation of fetal monitor tracing, failure to respond promptly to fetal monitoring indicating distress, etc.) and technical failures (loss of monitor tracings, interruption in the tracing at a critical time, unreadable tracings, etc.).

The monetary quantum in fetal monitoring failures exceeded $30,000,000. The majority of these failures could have been avoided by using central electronic fetal monitoring systems with alerting and archival capabilities.

Thrombocytopenic Purpura as Sole Manifestation of Brucellosis in a Child

Ronen Marom, Dan Miron, Herzel Gabriel, Yosef Horowitz

Pediatric Dept. A, Pediatric Infectious Disease Service, and Pediatric Hemato-Oncology Unit, HaEmek Medical Center, Afula and Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa

Thrombocytopenic purpura associated with brucellosis has rarely been described in children. The thrombocytopenic purpura is usually part of the array of manifestations of brucellosis, such as fever, malaise, arthralgia, arthritis, hepatosplenomegaly and lymphadenopathy.

We describe a 4-year-old girl in whom severe thrombocytopenic purpura was the only manifestation of brucellosis which resolved after appropriate antibiotic therapy. We conclude that brucellosis should be included in the differential diagnosis of thrombocytopenic purpura in areas endemic for brucellosis, and when there is a history of exposure to infected food products.

Dermatitis from Contact with Agave Americana

Haim Golan, Marina Landau, Ilan Goldberg, Sara Brenner

Dermatology Dept., Tel Aviv-Sourasky Medical Center

Various plants induce dermatitis in man. There have been only a few published cases of contact dermatitis caused by Agave americana (AA).

We report intentional exposure to AA in a soldier seeking sick leave, and review our previously reported cases. Treatment with oral antihistamines and topical saline compresses resulted in subsidence of the systemic symptoms within 24h and regression of cutaneous manifestations in 7-10 days.

Physicians should be alert to the possibility of self-inflicted contact dermatitis induced by exposure to plants, especially to A. americana. Systemic signs may accompany the cutaneous lesions.

Preservation of the Larynx in Advanced Cancer

Edward Rosenblatt, Nava Siegelmann-Danieli, Jemal Zidan, Nisim Haim, Abraham Kuten

Oncology Dept., Rambam Medical Center and Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa

The effectiveness of sequential chemo-radiotherapy in preserving the larynx in advanced laryngeal carcinoma was assessed. 4 Unselected patients (19 men and 2 women, mean age 60 years) with advanced squamous cell carcinoma of the larynx (T3-4/N0-3) received induction chemotherapy consisting of 2-3 cycles of cisplatin (100 mg/m²) and 5-flourouracil (1000 mg/m²/day) as a continuous infusion on days 1-5 followed by definitive radiotherapy: 50 Gy to the whole neck, 70 Gy to the larynx and clinically involved nodes, using a combination of 6 MV photons and 9-12 MeV electrons.

19 of The 21 patients responded to combined therapy but there was no response to induction therapy in 2 (10%) and 2 did not complete therapy due to severe toxicity. At a mean follow-up of 40 months, 7 had undergone total laryngectomy (33%), for an overall 5-year laryngeal preservation rate of 66%. Reasons for total laryngectomy in 2 patients were no response and in 5 tumor recurrence.

Mean survival was 39 months (range 11-46 months); at last follow-up 17 of 21 were alive and disease-free, 11 of whom had a functional larynx (65% of survivors). 2 died due to disease progression and 1 due to a cardiovascular event. Sequential chemo-radiation allows laryngeal preservation in about 2/3 of surviving patients without compromising survival.