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עמוד בית
Thu, 18.07.24

Search results


October 2005
A. Kesler, A. Mosek, N. Fithlicher and Y. Gidron
 Background: Idiopathic intracranial hypertension, also known as pseudotumor cerebri, is a relatively rare disorder of increased intracranial pressure >250 mm water, with a normal neuroimaging and normal cerebrospinal fluid content.

Objectives: To examine whether hostility, anxiety and autobiographical memory (a correlate of depression) are associated with IIH[1].

Methods: Using a case-control cross sectional design, 20 patients with IIH were compared with 9 healthy controls of similar age, weight and height, and 11 headache controls. Patients were assessed for hostility and anxiety. The Autobiographical Memory Test was used to assess episodic memories.

Results: The IIH group reported significantly more anxiety and more general episodic memories than the healthy controls, but not the headache control group. The headache control patients reported more general memories than did the healthy controls.

Conclusions: Patients with headaches, whether of general origin or related to IIH, have a poor psychosocial profile. While the study design does not permit any conclusions regarding causality, our results support the need to consider psychological factors in evaluating and treating IIH and headache patients. 

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[1] IIH = idiopathic intracranial hypertension

E. Zimlichman, A. Lahad, A. Aron-Maor, A. Kanevsky and Y. Shoenfeld.
 Background: As complementary and alternative medicine is gaining popularity among health consumers, diagnostic screening tools based on neuroreflexology are also being developed. These techniques, which are based on the rationale that measurement of electrical impedance of specific dermatomes reflects corresponding internal organ pathologies, have not yet been the subject of conventional scientific research.

Objectives: To determine the effectiveness of a neuroreflexology-based screening test, specifically the Medex device (Medex Screen Ltd.), for diagnosing patients undergoing conventional internal organ assessment, in a hospital setting.

Methods: Patients admitted to an internal medicine department, who met the inclusion criteria and agreed to participate, underwent conventional medical evaluation that included past medical history and physical examination. Another examination was conducted by a second physician using the Medex device to determine internal organ pathologies. A third researcher compared the actual “conventional” diagnosis with the Medex device output using standard statistical analysis.   

Results: Overall, 150 patients participated in the study. Correlation was significant for all categories (P < 0.01) except for blood and lymphatic disease. A high sensitivity (>70%) was measured for cardiovascular, respiratory, gastrointestinal and genitourinary diseases. The highest measure of agreement, as represented by the Cohen-Kappa factor, was found for respiratory disease (0.57).

Conclusions: Although the exact mechanism is not entirely clear, measurement of electroskin impedance of dermal-visceral zones has the potential to serve as a screening tool for inner organ pathologies. Further research should be conducted to create more evidence to support or dispute the use of this technique as a reliable diagnostic tool.

X. Giakoumi, M. Tsironi, C. Floudas, E. Polymeropoylos, E. Papalambros and A. Aessopos
September 2005
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.

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[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
T. Gaspar, D. Dvir and N. Peled
 Background: Computed tomography angiography enables non-invasive evaluation of the coronary arteries.

Objectives: To evaluate the accuracy of 16-slice multi-detector CT angiography in the diagnosis of coronary artery disease, and assess coronary bypass grafts and coronary anomalies.

Methods: We conducted a retrospective study of 223 patients who were examined at our medical center over a period of 2 years with a 16-slice CT angiography scanner and retrospective electrocardiographic gating.

Results: There were no significant complications, and good visualization of the coronary arteries was achieved in all but eight patients. A high correlation with the results of the invasive angiography was noted (sensitivity 85%, specificity 93%, negative predictive value 98%). Altogether, 131 bypass conduits were examined with excellent graft visualization. Several coronary anomalies were detected, as were significant extra-cardiac findings.

Conclusions: Multi-slice CT angiography is a reliable non-invasive diagnostic procedure for demonstration of the coronary arteries and bypass grafts. In the future it will probably replace part of the diagnostic invasive coronary angiography and, as a result, a large proportion of coronary angiography procedures will be therapeutic.

S.D. Duek, M.M. Krausz and D.D. Hershko
Background: Transanal endoscopic microsurgery has recently gained acceptance as an alternative minimally invasive surgical technique for the curative management of large rectal adenomas and selected early rectal carcinomas.

Objectives: To analyze our 8 year experience using TEM[1] for the management of rectal cancer.

Methods: Local resection by TEM was performed in patients with benign tumors and early rectal cancer. In addition, selected patients with T2 and T3 rectal cancers who were either medically unfit or unwilling to undergo radical surgery were also treated with this modality. Radical surgery was offered to all patients with incomplete tumor excision by TEM.

Results: Overall, 116 TEM operations for rectal tumors were carried out between 1995 and 2003, including 74 patients with rectal adenomas and 42 patients with rectal carcinomas. Twenty-five patients had T1 tumors that were all successfully removed, with clear tumor margins, by TEM. Fourteen patients had T2 cancer and 3 of them (21%) required additional radical surgery due to incomplete excision. Local recurrence was observed in one patient with T2 cancer. There was no mortality. Major surgery, or radiotherapy-related complications requiring additional surgical intervention was needed in five patients with T2 cancer.

Conclusions: Local excision by TEM is a safe surgical procedure and should be offered to highly selected patients with early rectal cancer.


 


[1] TEM = transanal endoscopic microsurgery


G.P. Georghiou, Y. Shapira, A. Tobar, B.A. Vidne and G. Sahar
June 2005
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


I.L. Nudelman, V. Fuko, A. Geller, E. Fenig and S. Lelchuk
 Background: Abdominoperineal resection entails the need for a permanent colostomy, which significantly reduces patient self-image and quality of life.

Objective: To investigate the effectiveness of preoperative chemoradiation in increasing the resectability rates of rectal cancer and increasing the anal sphincter preservation rate.

Methods: The study group included 66 patients aged 33–84 years with T2–T3 rectal carcinoma who were treated in our institute from 1997 to 2002 with preoperative chemoradiation followed by surgery 6 weeks later. All patients underwent preoperative transrectal endoscopic ultrasound for tumor staging and localization. The duration of follow-up was 25 months.

Results: Chemoradiation led to tumor downstaging in 61 patients (92.4%), all of whom underwent low anterior resection. Only 11.4% of this group needed a temporary (6 weeks) loop colostomy/ileostomy. None of the 16 patients with post-treatment T0 tumors had evidence of malignant cells on pathologic study. Five patients (7.6%) failed to respond to chemoradiation and underwent APR[1]. There were no major complications, such as leakage, and no deaths.

Conclusions: Neoadjuvant chemoradiation is an effective modality to downstage advanced rectal cancer, improving patient quality of life by significantly reducing the need for a terminal permanent colostomy, or even a temporary one.


 





[1] APR = abdominoperineal resection


May 2005
N. Bitterman and I. Shalev
 Background: In light of changes in the medical profession, the different requirements placed on physicians and the evolving needs of the healthcare system, the need arose to examine the medical education curriculum in Israel. This survey, conducted by the Samuel Neaman Institute for Science and Technology summarizes 20 years of medical education in Israel's four medical schools, as the first stage in mapping the existing state of medical education in Israel and providing a basis for decision-making on future medical education programs.

Objectives: To characterize the academic background of graduates, evaluate their attitudes towards current and alternative medical education programs, and examine subgroups among graduates according to gender, medical school, high school education, etc.

Methods: The survey included graduates from all four Israeli medical schools who graduated between the years 1981 and 2000 in a sample of 1:3. A questionnaire and stamped return envelope were sent to every third graduate; the questionnaire included open and quantitative questions graded on a scale of 1 to 5. The data were processed for the entire graduate population and further analyzed according to subgroups such as medical schools, gender, high school education, etc.

Results: The response rate was 41.3%. The survey provided a demographic profile of graduates over a 20 year period, their previous educational and academic background, additional academic degrees achieved, satisfaction, and suggestions for future medical education programs.

Conclusions: The profile of the medical graduates in Israel is mostly homogenous in terms of demographics, with small differences among the four medical schools. In line with recommendations of the graduates, and as an expression of the changing requirements in the healthcare system and the medical profession, the medical schools should consider alternative medical education programs such as a bachelor’s degree in life sciences followed by MD studies, or education programs that combine medicine with disciplines such as law, engineering, computer science, etc.

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