תוצאת חיפוש

Computed Tomographic Angiography of the Peripheral Vasculature - Role & Applications in Vascular Surgery

G. Szendro¹, D. Lumelsky², A. Klimov², I. Faingersh³

The department of vascular surgery Soroka Medical Center, Ben-Gurion university Beer-Sheva¹, the department of radiology Ha'Emek Medical Center Afula² and the department of surgery "B" Ha'Emek Medical Center Afula³

Computed tomographic angiography (CTA) is a relatively new diagnostic modality in the field of vascular surgery. Despite being new it has already been introduced into a wide range of diagnostic applications in this field and in many cases it can precede or replace the conventional intra-arterial angiography. During a 12 month period between 1.8.98 and 1.8.99 sixty five peripheral arterial imaging scans were performed using a CT Twin - 2 helical scanner (Spiral Twin Flash., Elscint, Israel) with a 100% technical success rate and no complications at all. Twelve patients (18.5%) were operated upon and 20 (30.7%) underwent endovascular procedures with full intra-procedural agreement with the pre-operative or pre-procedure CTA findings. Despite possible pitfalls and a few disadvantages the technique carries major benefits and significant advantages to both the patient and the clinician. Therefore we recommend considering CTA as a first line diagnostic modality whenever peripheral vasculature has to be demonstrated whether electively or urgently and to spare the conventional angiography for selected cases only.

שי מרקו, אלעד לרון, משה מזור

החטיבה למיילדות וגינקולוגיה, מרכז רפואי אוניברסיטאי סורוקה, הפקולטה למדעי הבריאות, אוניברסיטת בן-גוריון בנגב, באר-שבע

שיררומות רחם הן שאתות טבות ממקור של שריר חלק ומהוות גורם שכיח לדימום רחמי לא חד.

הן נפרדות מרירית הרחם, אך אינן עטופות קופסית סיבית. הטיפולים המוצעים כיום לחולות בשרירומות, כגון כריתת רחם, כריתת השרירומת עצמה וטיפולים נוספים אחרים, הם בעלי חסרונות. תיסחוף עורק הרחם באמצעות צינתור הוא טיפול חדש שהוצע על ידי Ravina וחב' ב- 1994. תיסחוף עורק הרחם הוא שיטה לא ניתוחית ומהווה כיום נקודת מיפנה בחשיבה הגינקולוגית ובטיפול בנשים עם שרירומות רחם תסמיניות המעוניינות לשמר את יכולת הפוריות שלהן. בשיטה זו מתבצע צינתור עורק הרחם וחסימת זרימת הדם לעבר השרירומות המסופקות על ידו. בסקירה זו מובאת סקירת המחקרים ותוצאותיהם בתחום חדש זה.

שרית אביאל-רונן, ברוריה שלמון ודבורה נס

העניין במחלת אלצהיימר (מ"א) חצה זה מכבר את גבולות האקדמיה והקליניקה. שכיחות המחלה העולה בכל עשור מעל העשור השישי ומגיעה לכ-50% מעל גיל 85, הופכת אותה לבעיה רפואית, חברתית וכלכלית בחברה מזדקנת. התסמינים, המתחילים בהפרעות קלות בתיפקודים שיכליים או בהפרעות באפקט, מתפתחים במהלך 5-10 שנים לחוסר התמצאות מתקדם, אובדן זיכרון ואימלות (אפזיה) ובשיאם מגיעים לשיטיון עמוק עם אובדן כושר הדיבור והניידות.

בן-עמי סלע

המכון לכימיה פתולוגית, מרכז רפואי שיבא, תל-השומר; החוג לביוכימיה קלינית, הפקולטה לרפואה סאקלר, אוניברסיטת תל-אביב

החשיבות של יציבות המירקם החוץ-תאי (extracellular matrix, להלן EMC) בשמירת שלמות דופן כלי הדם מוכרת היטב, בין השאר מהבנת מחלות בהן נפגעת שלמות EMC, כמו לדוגמה בתיסמונת Marfan. כשמעלים את נושא ה- EMC, מוזכרת בנשימה אחת קבוצת אנזימי המירקם נושאי האבץ, MMP, בשל חשיבות פעולתם הפרוטאוליטית בפירוק של רוב המרכיבים החלבוניים במירקם האמור. על חשיבותם האבולוציונית של אנזימי MMP תעיד העובדה, שעד היום זוהו 66 אנזימים כאלה החל ביצורים ירודים כמתגים מסוימים, ועד לאדם, בו התגלו עד כה 21 אנזימים ממשפחה זו. במקביל נתגלו  4 חלבוני ריקמה (tissue inhibitors of MMP, או TIMP), היוצרים קשר לא-קוולנטי עם האנזימים האמורים ומנטרלים את פעולתם. אנזימי MMP מופרשים כזימוגנים בלתי-פעילים אנזימית, ושיפעולם נעשה באמצעות פרוטאינאזות אחרות כפלסמין, טריפסין ולפחות MMP ממברנתי אחד שכינויו –MT-MMP, המבקעים פפטיד קצר בזימוגן, ומביאים להתמרתו ל- MMP פעיל. בסקירה קודמת בעיתון זה, ייחדנו מקום לחשיבותם של אנזימי המירקם הללו בתהליך הסרטני, ואילו בסקירה הנוכחית יורחב הדיון למשמעויות של אנזימי MMP בהיבטים אחדים של כלי הדם.
 

Heart Rate Variability with Spells of Unconsciousness in the Elderly

H. Semo, S. Feldman, A. Adunsky

Dept. of Geriatric Medicine and Neufeld Institute of Cardiology, Sheba Medical Center, Tel Hashomer

Presyncope, syncope and falls in undetermined circumstances are frequent among the elderly. They may be caused by orthostatic hypotension secondary to autonomic insufficiency. Tilt-tests and determination of catecholamines in serum and urine may establish the diagnosis, but often may not be feasible in these patients.

A simple, indirect, noninvasive technique to assess autonomic insufficiency is analysis of heart rate variability during Holter-monitoring. We present 5 cases in which it proved useful in the investigation of spells of unconsciousness.
 

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.
 

זאב פילדמן¹, זאב קורשון¹, זאב ארינזון¹, רינת פרידמן²

¹מרכז רפואי לגריאטריה, נתניה, ²"נופי השרון", דיור מוגן, נתניה

התלונה על נדודי שינה אופיינית לקשישים ובד"כ מתמידה. שכיחותה עולה עם הגיל ומדווחת אצל נשים, גרושים או אלמנים, המתגוררים לבד, ומשתייכים למעמד חברתי-כלכלי הנמוך. נדודי שינה יכולים להופיע כמחלה בפני עצמה או כביטוי להפרעות פסיכיאטריות, פיזיולוגיות, או על רקע טיפול תרופתי.

המטרה בסקירה: להרחיב את המודעות לנושא נדודי השינה בקרב קשישים ולהרחיב את הנושא, בעיקר בנוגע לשינויים הפיזיולוגיים ולגישה הטיפולית.
 

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. 
 

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.

Folic Acid for Preventing Neural Tube Defects

Ziv Gil, Adi Aran, Orna Friedman, Liana Beni-Adani, Shlomo Constantini

Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheba; Division of Pediatric Neurosurgery, Dana Children's Hospital, Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv

Spina bifida and anencephaly are the most common, serious malformations in neural tube defects (NTD). Randomized trials in the last 2 decades have demonstrated that folic acid, 0.4 mg/d, reduces the incidence of NTD by more than 50%. We investigated the use of folic acid and multivitamins containing folic acid in childbearing women.

Of 221 women interviewed, 67 (30%) regularly took pills containing 0.4 mg folic acid. Women with higher educational levels were more likely to take multivitamins with folic acid than were the less educated (p=0.05). Of the women who took folic acid, only 5 (7.5%) used separate folic acid tablets, before and during their pregnancy. The rest used multivitamins containing folic acid. The 5 women who took folic acid separately were college-educated and nonreligious, and they took multivitamins in addition (p>0.05).

Of the women interviewed, 58 (26.2%) were Bedouin of the Negev. 24 (41.4%) of them took pills containing folic acid on a regular basis. This percentage is higher than that in the Jewish women in the study who took folic acid for prevention of NTD (17%; p=0.038).

Most of the women took folic acid after the first trimester. Only a minority took daily periconceptional folic acid. Multivitamins containing 0.4 mg of folic acid were more popular than folic acid tablets alone. This study emphasizes the need for continuing efforts to increase consumption of folic acid and awareness of its benefits among women of childbearing age.

Atrophic Gastritis Presenting with Pulmonary Embolism

Muhammad A. Abdul-Ghani, Rima Feldman, Moshe Shai, Jacob Varkel

Dept. of Medicine C, Western Galilee Hospital, Naharia

Atrophic gastritis is an autoimmune gastropathy in which there is destruction of gastric parietal cells. This results in intrinsic factor deficiency and disturbance in vitamin B12 absorption. Its clinical manifestationa are therefore the consequences of B12 deficiency and include anemia and neurological defect. In addition, lack of B12 results in metabolic changes, including disturbances of methionine metabolism and accumulation of homocysteine.

In recent years, there has been increasing evidence suggesting that hyperhomocysteinemia is a risk factor for thrombo-embolic disease. We describe a 51-year-old man with atrophic gastritis, severe B12 deficiency and hyperhomocystein-emia. The initial clinical manifestation was pulmonary embolism, without either anemia or neurological signs. B12 deficiency should therefore be considered in patients being investigated for hypercoagulability.

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.

Testicular Cancer: Self-Awareness and Testicular Self-Examination in Soldiers and Military Physicians

Thomas Tichler, Rony Weitzen, Aharon Feinstone, Raoul Orvieto, Marian Moskovitz, Adam Singer

Depts. of Oncology and Medicine B, Sheba Medical Center, Tel Hashomer; Medical Corps, Israel Defence Forces; Gynecology Dept., Hasharon Medical Center, Petah Tikvah; and Medical Dept. B, Fleaman Hospital, Haifa

Testicular cancer is the most common malignancy in young men. To evaluate knowledge and awareness of that cancer, and of the practice of testicular self-examination (TSE), we developed a questionnaire which was distributed to 717 male soldiers and 200 of their military physicians.

21% of the soldiers had received some explanation of the importance of TSE, but only 16% were actually instructed how to perform TSE, and only 2% practiced it regularly. 24% had never examined their testicles before, 185 only rarely, and 6% often. With increased age, TSE frequency increased, but previous education, type of military unit, and ethnic origin had no affect. 99% of military physicians had been taught how to examine breasts, but only 70% had been taught routine testicular examination. 22% performed it, but 27% never did. 84% had never taught their soldiers the importance of TSE, although 51% taught female soldiers breast self-examination.

There was a significant lack of awareness of the importance of regular practice of TSE among both soldiers and their army physicians.

Gastrointestinal Hemorrhage of Obscure Origin

Yoel Siegel, David Ergaz, Oscar Liphshitz, Felix Gottesfeld, Zev Sthoeger

Depts. of Medicine B and Surgery, and Gastroenterology Unit, Kaplan Medical Center, Rehovot (Associated with Hebrew University-Hadassah Medical School, Jerusalem)

Gastrointestinal bleeding of obscure origin consists of recurrent bouts of acute or chronic bleeding for which no definite source is discovered in routine endoscopic and barium contrast studies of the upper and lower gastrointestinal tracts. Usually its cause is angiodysplasia of the intestine, but many cases are due to tumors, mostly of the small bowel, which may be malignant.

In patients under the age of 50, the proportion with malignancy is relatively high (up to 14%) as compared to older patients. We describe a 45-year-old woman who suffered from gastrointestinal bleeding for 3 years. The cause of bleeding was not found despite extensive work-up.

In her last admission for acute gastrointestinal hemorrhage she was given a total of 30 units of blood. A tumor of the small intestine found by angiography was excised and found to be a stromal tumor of uncertain malignant potential. 1 year after operation she is asymptomatic without bleeding and her hemoglobin is stable without treatment.

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.