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עמוד בית
Fri, 22.11.24

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November 2005
Galinsky, D. Kisselgoff, T. Sella, T. Peretz, E. Libson and M. Sklair-Levy
 Background: Mammography is the principal breast cancer imaging technique; however, sensitivity is reduced, especially in dense breast tissue. Magnetic resonance imaging is increasingly used in the detection and characterization of breast cancers. The high sensitivity (95–100%) of MRI is consistently observed, and in many situations, MRI is proving superior to classical forms of imaging. Assessment of its impact on management and outcome is vital if MRI is to become standard in the management of breast cancers.

Objectives: To establish the impact of breast MRI on women undergoing testing in our institution.

Methods: We analyzed 82 cases that underwent MRI between January 2001 and April 2003. Analysis appraised the clinical impact of MRI testing in cases where medical summaries were available.

Results: Studies were categorized into five indications: a) screening in high risk women (n=7), b) search for primary disease in the presence of disease (n=5), c) monitoring of chemotherapy (n=2), d) postoperative assessment of tumor bed (n=9), and e) diagnostic/characterization of primary or recurrent breast cancer (n=59). Results were defined as negative, positive or no impact on clinical management. MRI testing had a positive impact in 62 cases, affecting measurable change in 9 cases. Benefit was seen in screening, diagnosis and postoperative cases. In 15 cases, MRI stimulated investigations.

Conclusion: MRI is a valuable tool in breast imaging and affects management. Further trials are necessary to define clearly the role of MRI and to ascertain whether in cases where beneficial impact on management is noted, there is ultimate impact on outcome. 

A. Yellin, S.T. Zwas, J. Rozenman, D.A. Simansky and E. Goshen
Background: Somatostatin receptor scintigraphy has been used widely for the evaluation of neuroendocrine tumors in the gastrointestinal tract. Its use for detecting and staging thoracic carcinoids is only sporadically reported.
Objectives: To evaluate the possible roles of SRS[1] in the management of proven or suspected pulmonary carcinoids. 

Methods: We conducted a retrospective study of all patients undergoing SRS for known or suspected pulmonary carcinoids in a tertiary referral center during a 10 year period. During this period 89 patients underwent resection of pulmonary carcinoids and SRS was used for detection, staging or localization purposes in 8 of them (9%). Scans were labeled true positive, true negative, false positive, or false negative in comparison with histologic or follow-up results. 

Results: SRS was true positive in 6/6 lung locations; true positive in 2/8, true negative in 4/8 and false positive in 2/8 lymph node locations; and true positive in 1/8, true negative in 6/8 and false negative in 1/8 distant locations. The sensitivity, specificity, positive and negative predictive values and accuracy were 90%, 83%, 83%, 91% and 87% respectively. The scans were strongly positive in the tumors and involved lymph nodes. SRS correctly localized an occult secreting pulmonary carcinoid. Granulomatous and reactive lymph nodes showed increased uptake. SRS was accurate in ruling out distant metastases. 

Conclusions: SRS is effective for visualizing and localizing pulmonary carcinoids. It assists in the staging of these tumors by detecting lymph node involvement and confirming or ruling out distant metastases. Inflamatory areas in the lung or lymph nodes may be falsely positive.


[1] SRS = somatostatin receptor scintigraphy

 
October 2005
S. Yust-Katz, M. Katz-Leurer, L. Katz, Y. Lerman, K. Slutzki and A. Ohry.
 Background: Population structures are changing across the western world, with particularly rapid growth in the number of very old people. Life expectancy has been increasing gradually over years, resulting in a larger subpopulation of people aged 90 and over.

Objectives: To describe the sociodemographic, medical and functional characteristics of people aged 80–90 and 90+ who were admitted to a sub-acute geriatric hospital and to compare the hospitalization outcomes between these subgroups.

Methods: We compared the demographic and clinical data (extracted by means of chart review) of two groups of elderly who were admitted to the Reuth Medical Center during 2001–2002: those aged 90+ and those 80–89. Among survivors, the main outcome measures at discharge were mortality rate, functional ability, and place of residence.

Results: The study included 108 patients who were admitted to different divisions of Reuth: 55 patients aged 90+ and 53 aged 80–90. The mortality rate was significantly elevated in the older age group (49.1% vs. 28.1% in the younger age group) on multivariate analysis. The most important prognostic factors for mortality were incontinence (odds ratio 3.45) and being dependent before admission (OR[1] 4.76). Among survivors an association was found between being incontinent and dependent before hospitalization, and being dependent on discharge.

Conclusions: The main prognostic factors for mortality and functional outcome in patients admitted to a non-acute geriatric hospital are incontinence and functional state prior to admission, and not age per se.

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[1] OR = odds ratio

O. Nissim, M. Bakon, B. Ben Zeev, E. Goshen, N. Knoller, M. Hadani and Z. Feldman.
 Moyamoya disease is a cerebral vasculopathy characterized mainly by progressive narrowing of the major intracranial vessels. While more common and having a familial predilection in the Far East, it can also develop in association with some common hereditary diseases and can be acquired after environmental exposure. In the young its manifestations are the result of cerebral ischemia. Adults usually suffer from repeated incidents of intracerebral hemorrhage. Surgical revascularization of ischemic cerebral territories plays a major role in their treatment. We review the literature and present our series of three adult and five pediatric patients; these patients were diagnosed at our institution and treated with indirect revascularization techniques.

 

D. Hazzan, J. G. Eckstein, R. Steinhagen
September 2005
D. Golan, M. Zagetzki and S. Vinker
Background: Acute respiratory viral infections are minor self-limited diseases. Studies have shown that patients with ARVI[1] can be treated as effectively by non-physician practitioners as by physicians.

Objectives: To examine whether a military medic, using a structured questionnaire and an algorithm, can appropriately triage patients to receive over-the-counter medications and refer more complicated cases to a physician.

Methods: The study group comprised 190 consecutive soldiers who presented to a military primary care clinic with symptoms of ARVI. Using a questionnaire, a medic recorded the patient's history and measured oral temperature, pulse rate and blood pressure. All patients were referred to a doctor. Physicians were “blind” to the medic’s anamnesis and to the algorithm diagnosis. We compared the medic’s anamnesis and therapeutic decisions to those of the doctors.

Results: Patients were young (21.1 ± 3.7 years) and generally healthy (93% without background illness). They usually had a minor disease (64% without fever), which was mostly diagnosed as viral ARVI (83% of cases). Ninety-nine percent were also examined by a physician. According to the patients' data, the medics showed high overall agreement with the doctors (83–97.9%). The proposed algorithm could have saved 37% of referrals to physicians, with a sensitivity of 95.2%. Had the medics been allowed to examine the pharynx for an exudate, the sensitivity might have been 97.6%.

Conclusions: Medics, equipped with a questionnaire and algorithm but without special training and without performing a physical examination, can appropriately triage patients and thereby reduce the number of referrals to physicians.

________________

[1] ARVI = acute respiratory viral infection

E. Kaluski, N. Uriel, O. Milo and G. Cotter
 Although 40 years have passed since the advent of advanced cardiac life support, out-of-hospital cardiac arrest still carries an ultimate failure rate of 95%. This review reinforces the importance of public education, optimization of the local chain of survival, early bystander access and bystander basic life support, and early defibrillation. It emphasizes the role of simplified basic life support algorithms and demonstrates the low incremental benefit of complex skillful protocols employed in ACLS[1]. The impact of automatic external defibrillators and new medications incorporated into ACLS algorithms is evaluated in the light of contemporary research. The persistent, discouraging, low functional survival rate (less than 5% of out-of-hospital cardiac arrest victims) mandates reassessment of current strategies and guidelines.

_________________

[1] ACLS = advanced cardiac life support

 
August 2005
E. Konen, I. Greenberg and J. Rozenman
 Background: Chest radiography is still the most frequently performed radiologic imaging study. Digital radiography is gradually replacing the conventional systems.

Objectives: To compare the subjective visibility of normal anatomic landmarks in the chest on storage phosphor-based digital radiographs versus conventional screen-film radiographs.

Methods: Digital phosphor-based and screen-film posteroanterior chest radiographs were obtained during 1 year in 140 asymptomatic patients without any known pulmonary disease (119 men, 21 women; mean age 52.1 years, range 23–86). Both sets of films were independently compared by two experienced radiologists in different sessions. The visibility of each of the following anatomic landmarks was graded from 1 to 3: pulmonary fissures, carina, bronchi to left upper lobe, right upper lobe and left lower lobe, bronchus intermedius, anterior and posterior junctional lines, and vessels behind the heart and diaphragm. Additionally, subjective general quality impression of each radiograph was graded similarly. Statistical analyses were performed using the chi-square test. A P value less than 0.05 was considered significant.

Results: Visibility with the digital images was statistically significantly higher for the carina, left lower lobe bronchus, bronchus intermedius, and vessels behind the heart and diaphragm. Subjective general quality impression of digital radiographs was also higher (P < 0.001). No significant visibility differences were found for pulmonary fissures or junctional lines.

Conclusion: Subjective visibility of anatomic structures behind the heart and diaphragm and at the hilae is significantly improved with phosphor-based digital radiography compared with conventional screen-film radiography. This suggests that pathologic processes such as pulmonary nodules, masses or consolidations projected over those structures may be more easily and reliably depicted on digital than conventional chest X-rays.

E. Tamir, M. Heim and I. Siev-Ner
 Background: Neuropathic plantar ulceration of the foot is treated by de-loading the ulcer. The total contact cast is considered to be the gold standard, but it is a labor-intensive procedure and frequent cast changes are needed.

Objectives: To describe an alternative de-loading method using a fiberglass removable walking cast.

Methods: This prospective uncontrolled study comprised 24 diabetic and non-diabetic patients with a single planter neuropathic ulcer. Exclusion criteria included the presence of osteomyelitis or cellulites, peripheral vascular disease, severe foot or leg edema, more than one ulcer on the treated foot, ulcers on the other foot, visual problems, gait instability, and personality or psychiatric problems. All patients were treated with the removable fiberglass de-loading cast. At each weekly follow-up visit the cast was removed. Data were collected using a clinical report form.

Results: The ulcer healed completely in 21 of the 24 patients treated (87.5%). The mean time for healing was 6.8 weeks (range 3–20 weeks, SD = 4.2). New ulcers developed in six patients (25% of the group).

Conclusions: The effectiveness and safety of the method is comparable to that of the total contact cast, but is less labor intensive because the cast is manufactured only once and serves for the whole length of treatment. Improving the technique is expected to lower the complication rate.

July 2005
L. Pollak, M. Kushnir, Y. Shpirer, Y. Zomer and S. Flechter

Background: Benign paroxysmal positional vertigo is a common and treatable vestibular disorder characterized by attacks of positional vertigo. Although elderly patients often complain about unsteadiness, the symptom of positional vertigo is seldom reported. Several studies on BPPV[1] in the elderly reveal a low success rate in the treatment of this entity.


Objectives: To assess the clinical characteristics and treatment outcome of BPPV in elderly patients and to compare them with those of the general population treated at our dizziness clinic.


Methods: We reviewed the medical records of 23 patients above age 75 who were treated at our dizziness clinic for BPPV during the years 1998–2004. Their clinical data, BPPV characteristics and treatment outcome were compared with the data of 30 consecutive BPPV patients who represented the general population.


Results: No differences in gender distribution, duration of BPPV, treatment responsiveness or recurrence rate were found between elderly patients as compared to the general population. The duration of the last attack of positional vertigo was found to be longer in the elderly, probably due to the delay in recognition of symptoms and accessibility of a dizziness clinic.


Conclusions: Our study shows that BPPV characteristics and treatment effectiveness, as measured by negative Dix-Hallpike maneuver, are not age-dependent and there is no need for a special approach or cautiousness in prognosis prediction. It is important to search actively for this condition since treatment leads to amelioration of unsteadiness and improved well-being in these patients.




[1] BPPV = benign paroxysmal positional vertigo

 
 

June 2005
M.A. Abdul-Ghani, J. Kher, N. Abbas and T. Najami
 Background: Type 2 diabetes is usually associated with obesity, and both conditions are frequently detected in the Arab population in Israel. Recent studies have demonstrated that diabetes can be prevented by a change in lifestyle.

Objective: To assess the prevalence of diabetes in an Arab community, the contribution of obesity to diabetes development, and the therapeutic potential of a preventive program.

Methods: Data were obtained from the medical files of diagnosed diabetes patients attending a primary care clinic in an Arab village in northern Israel.

Results: Type 2 diabetes was diagnosed in 323 patients of whom 63% were women. The prevalence of diabetes below age 65 years was significantly higher among women than men. Diabetic women were younger than men at diagnosis (48.27 vs. 59.52 respectively) and were found to have higher body mass index (34.35 vs. 30.04 respectively) at diagnosis. The age at diagnosis of diabetes was strongly correlated with BMI[1] (r = 0.97, P < 0.0001).

Conclusions: Women of Arab origin are at higher risk of developing type 2 diabetes compared to men. Obesity in women seems to be associated with higher diabetes risk as well as earlier appearance of the disease. Therefore, they will have the disease for longer and, consequently, a higher risk for complications.


 





[1] BMI = body mass index


A. Kessler, H. Gavriel, S. Zahav, M. Vaiman, N. Shlamkovitch, S. Segal and E. Eviatar
 Background: Fine-needle aspiration biopsy has been well established as a diagnostic technique for selecting patients with thyroid nodules for surgical treatment, thereby reducing the number of unnecessary surgical procedures performed in cases of non-malignant tumors.

Objectives: To evaluate the sensitivity, specificity, accuracy, and positive and negative predictive values of FNAB[1] in cases of a solitary thyroid nodule.

Methods: The preoperative FNAB results of 170 patients who underwent thyroidectomy due to a solitary thyroid nodule were compared retrospectively with the final postoperative pathologic diagnoses.

Results: In cases of a solitary thyroid nodule, FNAB had a sensitivity of 79%, specificity of 98.5%, accuracy of 87%, and positive and negative predictive values of 98.75% and 76.6% respectively. All cases of papillary carcinoma diagnosed by FNAB proved to be malignant on final histology, while 8 of 27 cases of follicular adenoma detected by preoperative FNAB were shown to be malignant on final evaluation of the surgical specimen.

Conclusions: FNAB cytology reduces the incidence of thyroidectomy since this method has excellent specificity and sensitivity and a low rate of false-negative results. It proved to be cost-effective and is recommended as the first tool in the diagnostic workup in patients with thyroid nodules.


 





[1] FNAB = fine-needle aspiration biopsy


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