Israel Medical Association Journal

Objectives: To test the in vitro activity of linezolid (oxazolidinone) and other antimicrobial agents against MRSA[1] isolates recovered from hospitalized patients.

Methods: We tested 150 MRSA isolates recovered from hospitalized patients. The minimal inhibitory concentration of vancomycin, teicoplanin, pristinamycin (quinupristin-dalforistin), and linezolid was determined by the Etest method. Susceptibility to other antibiotics was tested by the disk diffusion method.

Results: All isolates were sensitive to vancomycin, teicoplanin, pristinamycin, and linezolid. The MIC₉₀ was 2.0 mg/ml for vancomycin and teicoplanin (range 0.5–2.0 mg/ml and 0.125–2.0 mg/ml, respectively), and 0.5 mg/ml for pristinamycin and linezolid (range 0.125–0.75 mg/ml and 0.125–0.5 mg/m, respectively). Of the other antibiotics, fusidic acid showed the best in vitro activity, with 96.7% susceptibility, associated with trimethoprim/sulfamethoxazole (85.8%) and minocycline (84%). Penicillin was associated with the lowest susceptibility (1.3%), associated with ofloxacin (3%) and erythromycin (14%). An increase in the minimal inhibitory concentration value of vancomycin was associated with a significant decrease in resistance to TMP-SMZ[2] (P < 0.01) and an apparent increase in resistance to other antibiotics.

Conclusion: The excellent in vitro activity of linezolid and its reported in vivo effectiveness renders it an important therapeutic alternative to vancomycin in the treatment of MRSA infection.

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[1] MRSA = methicillin-resistant Staphylococcus aureus

[2] TMP-SMX = trimethoprim/sulfamethoxazole

Background: Road traffic accidents are the leading cause of accidental injury and death for persons under the age of 35. The medical literature presents surprisingly little information on the general characteristics of such accidents in the urban setting.

Objectives: To characterize RTA[1] patients arriving at an urban trauma center.

Methods: We prospectively examined the charts of all patients admitted to the Tel Aviv Sourasky Medical Center due to RTA injuries during two periods in 1995.

Results: Of the 1,560 patients examined, the male:female ratio was 1:1 and median age was 27 years (47% aged 20–30 years); 51% of the accidents took place between 8 a.m. and 4 p.m. and on working week days; automobiles comprised 47.1% of the vehicles involved, motorized two-wheel vehicles 37.1%, bicycles 3.8%, and pedestrians 12%. The Glasgow Coma Scale was 15 on arrival in 98.7% of the patients. The trunk was the most commonly injured body part (84.7%); whiplash injury to the neck was diagnosed in 343 patients (22%), and brain concussion in 183 (11.7%). Computed tomography studies were performed in 34 patients (2.2%). The vast majority of patients (1,438, 92.2%) was discharged home; 14 (0.9%) were admitted to the intensive care unit, and 2 (0.13%) died during hospitalization. The average time spent in the emergency department in the morning shift was 2.1 hours.

Conclusions: We could identify distinguishing factors of this population: equal gender distribution, peak RTA incidence in the young adult working population during working hours, automobile drivers being the most injured subgroup, a disproportionate number of motorcycle and motor scooter involvement, and a relatively extensive amount of time and resources spent treating these injuries despite their generally minor nature.



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[1] RTA = road traffic accidents

Background: Many medical school curricula include training for ethical considerations, legal comprehension, implementation of patients' rights, awareness of cultural differences and communication skills (ELCE).

Objectives: To explore medical students' perceptions of their ELCE training during the clinical phase as well as the relationship between humanistic practice skills' experiences and the quality of clinical training.

Methods: A cross-sectional survey was carried out in two cohorts during their clinical year period at Tel Aviv University's Sackler Faculty of Medicine at the end of their internal medicine and surgery clerkships in the 2002 academic year. The research tool was an 18 item Likert-type questionnaire (ELCEQ), based on the literature of biomedical ethics, legal aspects and behavior of practice skills. The content validation of the questionnaire was established by consulting experts among the school's faculty. It was circulated among the students by representatives of the Unit of Medical Education.

Results: The response rate was 88%. Students reported only a few opportunities for gaining experience in humanistic practice skills. A weak correlation was found between students' assessment of the quality of clinical training and their experiences in humanistic practice skills.

Conclusions: A wider and more relevant range of active experiences in humanistic practice skills should be available to students during the clerkships. Correspondingly, there is a need for the clinical faculty to find innovative ways to internalize their task as role models and ensure that students acquire and are able to practice those skills.
 

Melanoma is the leading cause of death from skin tumors worldwide, with an annual increase in incidence over the past decade. The molecular mechanisms involved in melanoma pathogenesis are beginning to be unraveled. While a family history of melanoma and exposure to ultraviolet irradiation have been known for years as risk factors in melanoma development, the precise genes involved in inherited predisposition were defined only in the past decade. Germline mutations in two genes that play a pivotal role in controlling cell cycle and division – CDKN2A and cyclin-dependent kinase 4 (CDK4) – have been detected in autosomal, dominant, high penetrance familial melanoma cases. In addition to these two highly penetrant genes, germline mutations and polymorphisms in a few low penetrance genes have been reported in familial melanoma cases: melanocortin-1 receptor, epidermal growth factor, glutathione s-transferase M1, cytochrome p450 debrisoquine hydroxylase locus (CYP2D6) and vitamin D receptor.

While some claim that germ-line engineering is a definite possibility, the law in Israel and in most countries states that it should be avoided. This paper suggests that using GLE[1] in order to ‘self-evolve’ (when it becomes safe) is not only inevitable but also morally justified. This paper argues that,  

• The great achievements of healthcare during the last century, enabling longer life, have made almost everyone prey to late-onset diseases.


• The conundrum of healthcare allocation is worsening, partly due to late-onset dysfunctional genes that have escaped the barriers of natural selection.


• Trying to free future generations from late-onset diseases (such as Alzheimer’s for instance) may be considered as ‘eugenics’ but, if pursued freely and justly, is a noble goal.


• We will be affecting future generations whether or not we use GLE.


• By definition, GLE might be reversible; it follows therefore that GLE may not necessarily represent the dramatic change inserted in the germ line forever – as is usually suggested.


• Reproductive freedom and justice are paramount in this scenario. These values are not necessarily incompatible if the right policies are in place.

Background: Until recently trimethoprim-sulfamethoxazole was the drug recommended in the Leumit Health Fund for the empiric treatment of uncomplicated urinary tract infection in women. However, due to increased uropathogen resistance to this drug, the fund has designated nitrofurantoin as its new drug of choice.

Objectives: To evaluate the potential economic impact of implementing this new pharmaco-policy.

Methods: Using data derived from the electronic patient records of the Leumit Health Fund we identified all non-recurrent cases of women aged 18–49 with a diagnosis of acute cystitis or UTI[1] without risk factors for complicated UTI and empirically treated with antibiotics throughout 2003. The final sample comprised 5,489 physician-patient encounters. The proportion of cases treated with each individual drug was calculated, and the excess expenditure due to non-adherence to the new guideline from the perspective of the health fund was evaluated using 5 days of therapy with nitrofurantoin as the reference treatment.

Results: Ofloxacin was the most frequently prescribed drug (30.24%), followed by TMP-SMX[2] (22.43%), cephalexin (15.08%), and nitrofurantoin (12.59%). The observed net aggregate drug expenditure was 2.3 times greater than expected had all cases been treated with nitrofurantoin according to the guideline duration of 5 days. The cost of treatment in 53% of the cases exceeded the expected cost of the guideline therapy.

Conclusions: Successful implementation of the new drug policy will likely improve quality of care and reduce costs to the health fund.

Mortality rates have been falling at all ages, even for very old cohorts, in most western countries as well as in Israel. The question remains open as to whether morbidity rates are also decreasing, especially for Israel’s elderly. While health is improving in almost all industrialized countries, the situation in Israel is not yet resolved. While the more recent cohorts of the young-old (65–74 years) are healthier than their predecessors, Israel’s old-old (75+) may still be lagging behind other countries with regard to improvements in health status. This phenomenon is not well understood but could be explained in part by the more severe formative experiences of many of Israel’s very elderly cohort.

The Israel Health Ministry is preparing legislation that would allow a person to receive monetary compensation in exchange for donating a kidney for a lifesaving transplant. Such a bill would be the first of its kind, and would seem to establish a policy that is in contrast with both existing international professional ethics and major Christian and Islamic religious ethics. In an attempt to investigate the extent to which such a bill would be consistent with traditional Jewish ethics, we reviewed the opinions of major traditional Jewish ethicists/halakhists, with emphasis on contemporary opinions, and found that compensating an organ donor for his or her time, discomfort, inconvenience, and recovery is fully consistent with traditional Jewish law and ethics.  While non-altruistic sale of kidneys might be theoretically ethical from a Jewish perspective, ultimately its ethical status is inextricably connected to solving a series of pragmatic issues, such as creating a system that insures that potential vendors/donors are properly informed and not exploited; controlling and supervising medical screening and support of the donors to insure that their health is not permanently endangered; protecting minors and incompetents; and regulating payments so that they reasonably reflect compensation for pain and suffering.

The complexity of medical problems is a well-recognized phenomenon. In the presence of economic and cultural restrictions, medical decision-making can be particularly challenging. This paper outlines a system of analysis and decision-making for solving such problems, and briefly describes a case study in which the method was used to analyze the case of antibiotic overprescribing in a large health maintenance organization. The purpose of the study was to determine if a technique for problem-solving in the field of engineering could be applied to the complex problems facing primary care. The method is designated Systematic Inventive Thinking and consists of a three-step procedure: problem reformulation, general search-strategy selection, and an application of idea-provoking techniques. The problem examined is the over-prescribing of antibiotics by general practitioners working in Maccabi Healthcare Services, an HMO[1] serving one and a half million patients in Israel. The group of healthcare professionals involved in the discussions generated 117 ideas for improving antibiotic use. Six of these ideas were then implemented in a national campaign in the winter of 2000/1 and 2001/2. During this period, a significant reduction in per-visit antibiotic purchasing was observed for influenza visits (from 79.2 per 1,000 to 58.1 per 1,000, P < .0001), but not for other categories of visits. The SIT[2] methodology is a useful technique for problem-solving and idea generation within the medical framework.

Background: The lack of lactobacilli in the vagina of postmenopausal women due to estrogen deficiency plays an important role in the development of bacteriuria. In the last few years, the use of lactobacilli for the prevention of genitourinary infections has been explored using different probiotic strains.

Objectives: To evaluate the vaginal colonization by Lactobacillus rhamnosus GG in postmenopausal healthy women following oral administration of the bacteria in a yogurt base for 1 month, as a first step in evaluating the potential probiotic role of LGG[1] in the prevention of recurrent urinary tract infections.

Methods: One or two doses per day of yogurt containing 10⁹ colony forming units of LGG were administered orally to 42 postmenopausal healthy women for 1 month. Vaginal and rectal swabs were cultured at the beginning and end of the study.

Results: At the end of the study, the vaginas of only four women (9.5%) were colonized with LGG, at a very low number of bacteria, despite the fact that the gastrointestinal tracts of 33 women (78.6%) were colonized. There were no significant differences between one or two doses daily.

Conclusions: LGG should not be considered as a probiotic agent in urinary infections since it does not attach well to the vaginal epithelium.