תוצאת חיפוש

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. 
 

Prevention and Treatment of Procedural Pain in Pediatric Wards

R. Gorodischer, L. Herzog, E. Herzog

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

Present knowledge and available pharmacological agents allow for adequate prevention and treatment of pain in children. We present guidelines we prepared for the prevention and treatment of procedural pain in children in our general pediatric ward. This followed extensive review of the literature, participation in scientific meetings, discussions with experts and consultation with interested clinicians. Successful implementation of the guidelines requires increased appreciation of the importance of pain prevention, participation of the nursing, as well as medical staff, and ability to evaluate pain in children of various ages.
 

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%).
 

עבד אלנאסר עזב, יורי ירוסלבסקי,

המח' לפארמאקולוגיה קלינית, אוניברסיטת בן-גוריון בנגב, המרכז לבריאות הנפש, באר-שבע

כיום, מצויה ספרות רחבת יריעה המתבססת על עבודות קליניות המצביעה על כך, שליתיום (litium) לא יוכל לתת מענה לכל החולים הלוקים במחלה אפקטיבית דו-קוטבית (מא"ד), ומכך נבע הצורך בחיפוש אחר אפשרויות טיפוליות נוספות. התרופות הראשונות שיעילותן הוכחה במחקרים קליניים מבוקרים (כפולי-סמיות) הן התרופות נוגדות הכיפיון (תנ"כ), קארבאמזפין חדישות, כגון לאמוטריגין (lamorigine), שגם לגביו קיימת עדות קלינית מצטברת והולכת שהוא עוזר לטיפול במחלה אפקטיבית דו-קוטבית.

את מנגנון הפעולה של התנ"כ (המשמשות כיום לטיפול במא"ד) ניתן לסווג באופן כללי לשלושה סוגים: 1) הגבלת הירי החשמלי המתמשך (היח"מ, sustained repetitive firing) של הנירונים, המושגת דרך הארכת תקופת האיבטול של תעלות נתרן. 2) הגברת השפעת (GABA) הגורמת להשפעה מעכבת באותן סינאפסות. 3) חסימה של תעלות סידן, בעיקר של תעלות בעלות סף נמוך (T-type). עם זאת, המנגנון שעומד מאחורי היות התנ"כ הנ"ל תרופות שעוזרות לטיפול במא"ד, עדיין אינו ברור.

חשוב לציין, שהמשותף לכל התנ"כ הללו הוא יכולתן לחסות את תעלות הנתרן (voltage-activeted sodium channel blockade), אך למרות זאת, התרופה פניטואין, החוסמת ביעילות אותן תעלות נתרן, עדיין לא ניתנה כטיפול במא"ד, על אף העובדה שהיא משמשת כתרופה נוגדת כיפיון כבר קרוב לשישה עשורים. לכן, היה עניין רב לבדוק את ההפעה הנטימאנית של פניטואין ובסקירה זו, יובאו התוצאות של עבודה ראשונית שנעשתה לבדיקת השפעות אלו של התרופה בקרב חולים עם מא"ד ובחולים סכיזואפקטיביים, שבהם נמצאה השפעה חיובית של התרופה.
 

ענבר צוקר¹, לאה סירוטה¹, נחמה לינדר¹

¹המח' לטיפול נמרץ פגים, מרכז שניידר לרפואת ילדים בישראל, פתח-תקווה

ילודים, ובמיוחד פגים במשקל לידה נמוך, נמנים עם קבוצות החולים הנזקקות בשכיחות גבוהה לערויי-דם ותוצריו. על פי הערכות, כ- 80% מהילודים השוקלים פחות מ- 1500 ג', יקבלו מספר ערויי-דם בשבועות הראשונים לחייהם. ערויים אלה ניתנים כדי לתקן אנמיה תסמינית, הנגרמת כתוצאה ממישלב של חסר ייצור מספיק של דם ע"י הילוד ובמיוחד הפג הגדל, ושל איבודי דם מישניים לבדיקות. לעיתים, ניתנים ערויים במסגרת פעולות טיפוליות מיוחדות, המצריכות מתן ערויי דם בכמות גדולה, כגון ניתוחי לב וערוי חלופין. הטיפול בערויי דם יכול לגרום לשורה של סיבוכים מיידיים ומאוחרים. חלקם יכולים לחול בכל קבוצת גיל וחלקם ייחודיים לילודים. המטרה בסקירה זו היא לדווח על הסיבוכים האפשריים של ממתן ערוי-דם בילודים, תוך התייחסות למאפיינים הייחודיים לתת-אוכלוסייה זו של חולים.
 

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.

Laparoscopic Cholecystectomy - 1,000 Procedures in a Surgical Department

Uri Freund, Ami Mayo, Ivan Schwartz, David Neufeld, Haim Paran

Dept. of Surgery A, Meir Hospital, Kfar Saba; and Sackler School of Medicine, Tel Aviv University

The first 1,000 laparoscopic cholecystectomies performed in our department were reviewed. There was no operative mortality; conversion to open cholecystectomy was necessary in 2%. In the last 600 cases the rate of conversion had decreased to 0.5%. There was common bile duct injury in 0.3%, with the injuries identified during primary surgery. This clinical experience is consistent with previous studies, which proved that laparoscopic cholecystectomy is safe and should replace open operation as the procedure of choice. 

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.

Hospitalization for Renal Colic: Epidemiological Features and Clinical Manifestations

Yahav Oron, Amir Shahar, Eran Dolev

Sheba Medical Center, Tel Hashomer; Israel Defense Forces Medical Center; Meir General Hospital, Sapir Medical Center, Kfar Saba; and Dept. of Medicine H, Sourasky-Tel Aviv Medical Center

The medical records of all patients referred to the emergency department (ED) of Sheba Medical Center for renal colic during 1996 were analyzed. Patients discharged from the ED and those hospitalized were compared.

There was no significant difference between the 2 groups with regard to average age or sex distribution. Statistically significant differences were found with regard to frequency of chills and fever, history of renal colic, referral for renal colic during that year or hospitalization for renal colic or nephrolithiasis, previous positive imaging, stone removal by surgery or extracorporeal shock wave lithotripsy, fever exceeding 37.5^o and administration of fluids, pethidine or pramin in the ED, prolonged stay in the ED and previous appendectomy.

A conditional regression model tested the predictive value of each of those factors. Inclusion of independent variables into the model led to an overall correct classification rate of 84.43%, with 44.83% sensitivity and 93.16% specificity. There were correlations between referrals for renal colic, overall renal colic rate and average monthly temperature, so there was no pure correlation between average monthly temperature and referrals to the ED for renal colic.

The major indications for hospitalization were actually the clinical ones, indicating either an active metabolic disease or suspected obstruction of the urinary tract. Treatment in the ED and duration of the visit indicated disease severity.

What Primary Care Physicians Think of Israel's Health Policy Reform

Revital Gross, Hava Tabenkin, Shuli Brammli-Greenberg

JDC Brookdale Institute, Jerusalem, HaEmek Hospital, Afula; and Ben-Gurion University of the Negev, Beer Sheba

Opinions of the National Health Insurance (NHI) Law held by primary care physicians were surveyed. A questionnaire was submitted (April-July 1997) to 930 primary care physicians employed by sick funds, including general practitioners, family physicians, pediatricians and internists. Response rate was 86%.

They supported the main components of the NHI law. It was considered desirable "to a great" or "very great extent" to allocate funds to sick funds based on age and number of members (76%), to require them to accept all applicants (72%), to designate a uniform basket of services (65%), to allow members to transfer freely between funds (63%), and to allow sick funds to sell supplemental insurance (59%). However, only 41% were satisfied with the implementation of the law.

Multivariate analysis showed that employment by Maccabi, Meuhedet, or Leumit sick funds had an independent effect on low satisfaction with the law as implemented, and on negative opinions about the uniform basket of services, the accepting of all applicants, and allocation of funding based on age and number of members. Those employed by the Maccabi and Meuhedet funds were in favor of allowing sick funds to sell supplemental insurance.

The findings of the study have implications for policy-makers interested in increasing support for national health reform by physicians. It is important to examine possibilities of developing direct channels of communication between national policy-makers and physicians, as well as institutionalizing mechanisms that involve physicians directly in formulation of national policy.

Specialty Clinics - Gain or Loss?

Natalya Bilenko, Luna Avnon, Fanya Shimonovich, Dov Heimer

Epidemiology Dept.; and Pulmonary Unit of Soroka Medical Center; Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheba

We evaluated the significance of first visits to our pulmonary clinic with regard to diagnosis and treatment by reviewing records of 287 new referrals by medical care providers (Sept. 1998 - Feb. 1999). At the first visit the diagnosis was changed in 30%, and treatment in 40%. These are minimal figures because evaluation had not been completed nor the diagnosis determined in all cases, while further investigation and follow-up continued.

In light of these findings, we believe that recent pressure on primary care physicians to avoid referrals to specialty clinics would result in short-term savings, but in the long term, would increase expenses and diminish quality of care. It is important to consider ways to maximize the interaction between the primary care physician and the specialist to maintain quality of care and decreases costs.

Laparoscopic Ultrasound in Predicting Resectability of Choriocarcinoma

M. Shimonov, P. Schachter, G. Gvirtz, Y. Avni, A. Rosen, A. Czerniak

Depts. of Surgery, Ultrasound, and of Gastroenterology, Wolfson Medical Center, Holon and Sackler Faculty of Medicine, Tel Aviv University

Cholangiocarcinoma accounts for about 1% of all malignant tumors. They are difficult to diagnose because of their small size and their location. Although surgical resection is the best therapeutic approach, most patients undergo unnecessary exploratory laparotomy due to incorrect preoperative diagnosis.

We present our experience with laparoscopic ultrasound (LU) in the evaluation of cholangiocarcinoma and determination of tumor spread and vascular involvement. Of 25 patients referred for surgery, 6 were excluded following LU and were referred instead for palliative treatment. Diagnosis of the tumor was successful in 92%, and vascular involvement was diagnosed in 46%. LU should be an integral diagnostic test in the evaluation of choriocarcinoma.

Multiresistant Escherichia Coli from Elderly Patients

Ilana Slucky-Shraga, Moshe Wolk, Sofia Volis, Israel Vulikh, David Sompolinsky

Dept. of Medicine and Microbiology Laboratory, Mayanei Hayeshua Hospital, Bnei Brak; Central Laboratories, Ministry of Health, Jerusalem; and Faculty of Life Sciences, Bar Ilan University, Ramat Gan

We examined all ceftriaxone-resistant Escherichia coli isolates obtained from clinical samples during 16 months (1‚Dec. '97 - 31 Mar. '99). A total of 97 resistant isolates from 36 patients were obtained, mostly from urine specimens. Of these patients, 35/36 were over 75 years old, most lived in nursing homes, were dependent on nursing in their daily lives, and were incontinent and/or had indwelling catheters.

All 97 isolates had similar susceptibility profiles: resistant to ciprofloxacin, gentamicin, ampicillin, amoxycillin/clavulanate, tricarcillin/clavulanate, aztreonam, and cefuroxime; decreased susceptibility to ceftazidime and cefepime; and susceptible to imipenem and meropenem. Double-disc tests indicated that all strains produced extended spectrum beta-lactamase(s). All the isolates belonged to 1 of 3 E. coli serotypes: 79 were 0153:H31, 13 were 0142:H10, and 5 were 0102:H6.

Thallium Scan and Pulmonary Carcinoma 

Adam Mor, Amit Segev, Rami Herskoviz, Yoseph A. Mekori

Dept. of Medicine B, Meir General Hospital, Kfar Saba Affiliated with Sackler Faculty of Medicine, Tel Aviv

A 70-year-old man was admitted for exacerbation of congestive heart failure. In his assessment thallium scan of the heart was performed. An incidental finding was a focus of absorption in the right lung. The lesion was later diagnosed as adenocarcinoma based on the cytological findings.

Non-Penetrating Deep Sclerectomy without Collagen Implantfor Glaucoma

Ben Zion Silverstone, Isaac Aizenman, Carmit Landau, Yaacov Rozenman

Ophthalmology Dept., Shaare Zedek Medical Center, Jerusalem

Deep sclerectomy (DS) can be used in glaucoma with increased intraocular pressure when medical treatment fails. It involves removing part of the ocular drainage apparatus. Resistance to intraocular fluid drainage is decreased, improving drainage and decreasing intraocular pressure. By avoiding anterior chamber penetration, DS diminishes frequency of the complications of filtering surgery.

24 eyes of 23 patients underwent DS for primary or secondary open angle glaucoma with elevated intraocular pressure not controlled medically. It included preparation of a 4.0 x 4.0 mm limbal-based external scleral flap, dissecting and removing most of an internal scleral flap (leaving it 1 mm smaller than the external flap), unroofing Schlemm's canal and removing fine endothelial tissue lining its inner walls. The external scleral flap was then repositioned and sutured. Collagen implants were not used. In some cases DS was combined with extracapsular cataract extraction and intra-ocular lens implantation.

Mean intraocular pressure decreased from 24.8‏3.9 mmHg initially to 12.8‏4.4 mmHg 6 months after operation (p<0.0001). There was no difference in postoperative intra-ocular pressure between DS as a single procedure or as part of a combined operation. Comations were mild and of short duration.

If long-term follow-up shows that lowered intraocular pressures are maintained, DS should be a surgical option in earlier stages of glaucoma.