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עמוד בית
Thu, 18.07.24

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August 2013
G. Segal, I. Alperson, Y. Levo and R. Hershkovitz
 Background: Predicting mortality is important in treatment planning and professional duty towards patients and their families.

Objectives: To evaluate the predictive value regarding patients' survival once the diagnosis of “general deterioration” replaces an ICD-9 diagnosis upon re-admission.

Methods: In a retrospective cohort case-control study, we screened the records of patients re-admitted at least three times during the past 2 years. For each patient's death during the third hospitalization, we matched (for age and gender) a patient who survived the third hospitalization. We evaluated 14 parameters potentially accountable for increased risk of mortality, e.g., length of stay at each admission, interval to re-admission, etc. We applied a multifactorial analysis using logistic regression to predict the risk of mortality during the third hospitalization as potentially affected by the aforementioned parameters.

Results: The study included 81 study patients and 81 controls. Of the 14 parameters potentially explaining an increased risk of mortality during the third hospitalization, several were found to be statistically significant. The most significant was the diagnostic switch from a specific ICD-9 diagnosis on first admission to the non-specific diagnosis of “general deterioration” at the second hospitalization. In such cases, the risk of death during the third hospitalization was increased by 5300% (odds ratio = 54, P = 0.008). The increased risk of mortality was not restricted to patients with malignancy as their background diagnosis.

Conclusions: At re-admission, a switch from disease-specific diagnosis to the obscure diagnosis “general deterioration” increases the subsequent risk of mortality.

 

July 2013
G. Korchia, Y. Amitai, G. Moshe, L. Korchia, A. Tenenbaum, J. Rosenblum and A. Schechter

Background: Hypovitaminosis D is common worldwide, even in sunny regions.

Objectives: To assess the prevalence and determinants of vitamin D deficiency in toddlers.

Methods: A cross-sectional prospective study was conducted in healthy Jewish children aged 1.5–6 years at five primary care pediatric clinics in the Jerusalem area during the period October 2009 to November 2010. Parents were interviewed regarding personal and demographic data and sun exposure. Blood samples were obtained for serum 25-hydroxyvitamin D [25-OHD] level. Vitamin D deficiency and insufficiency were defined as 25-OHD < 20 ng/ml and < 30 ng/ml, respectively.

Results: Of 247 children studied, 188 (76%) were ultra-Orthodox and 59 (24%) were Orthodox, traditional or secular. Mean (± SD) 25-OHD level was 25.7 ± 10 ng/ml. Only 73 children (29.6%) had sufficient 25-OHD levels, 104 (42.1%) had insufficiency, and 70 (28.3%) had 25-OHD deficiency. The difference between ultra-Orthodox and others was insignificant (25 ± 10 vs. 27.8 ± 10.5 ng/ml respectively, P = 0.062). Children aged 1.5–3 years had higher 25-OHD levels than those aged 3–6 years (28.6 ± 10.7 and 24 ± 9.2 ng/ml respectively, P < 0.001). Vitamin D deficiency was more common in winter (53%) and autumn (36%) than in summer (19%) and spring (16%). Toddlers attending long-day kindergartens had higher 25-OHD level than those staying at home or at short-day kindergartens (28.8 ± 11.5 and 24.7 ± 9.6 ng/ml respectively, P < 0.05).

Conclusions: A high prevalence of vitamin D deficiency was found in toddlers in our study, mainly in older children and in the winter and autumn. We recommend routine supplementation of vitamin D for children beyond the agear.

O. Segal, J.R. Ferencz, P. Cohen, .A.Y. Nemet and R. Nesher

Background: The number of patients treated with intravitreal injections has increased significantly over the past few years, mainly following the introduction of anti-vascular endothelial growth factor antibody intraocular medications. Bevacizumab is mostly used in this group of medications.

Objectives: To describe persistent elevation of intraocular pressure (IOP) following intravitreal injection of bevacizumab.

Methods: We reviewed consecutive cases of persistent IOP elevation after intravitreal bevacizumab injection for exudative age-related macular degeneration (AMD). A total of 424 patients (528 eyes) met the inclusion criteria and received 1796 intravitreal injections of bevacizumab. Persistent IOP elevation was found in 19 eyes (3.6%, 19/528) of 18 patients (4.2%, 18/424) with IOP elevated 30–70 mmHg, 3–30 days after injection.

Results: Mean IOP was 42.6 mmHg (range 30–70); IOP elevations occurred after an average of 7.8 injections of bevacizumab (range 3–13). Injected eyes (19/528) had a significantly higher incidence of elevated IOP than uninjected eyes (fellow eyes), 1/328, P < 0.001.

 Conclusions: Like other anti-vascular endothelial growth factor (VEGF) substances reported in a few recent studies, intravitreal injection of bevacizumab for neovascular AMD may be associated with persistent IOP elevation. Providers should be aware that significant IOP elevation might occur after repeated treatments. 

G. Yaniv, G. Twig, O. Mozes, G. Greenberg, C. Hoffmann and Y. Shoenfeld
 Systemic lupus erythematosus (SLE) is a complex autoimmune disorder involving multiple organs. One of the main sites of SLE morbidity is the central nervous system (CNS), specifically the brain. In this article we review several imaging modalities used for CNS examination in SLE patients. These modalities are categorized as morphological and functional. Special attention is given to magnetic resonance imaging (MRI) and its specific sequences such as diffusion-weighted imaging (DWI), diffuse tensor imaging (DTI) and magnetic resonance spectroscopy (MRS). These modalities allow us to better understand CNS involvement in SLE patients, its pathophysiology and consequences.

 

June 2013
G. Barkai, A. Barzilai, E. Mendelson, M. Tepperberg-Oikawa, D. Ari-Even Roth and J. Kuint
 Background: Congenital cytomegalovirus (C-CMV) infection affects 0.4–2% of newborn infants in Israel, most of whom are asymptomatic. Of these, 10–20% will subsequently develop hearing impairment and might have benefitted from early detection by neonatal screening.

Objectives: To retrospectively analyze the results of a screening program for C-CMV performed at the Sheba Medical Center, Tel Hashomer, during a 1 year period, using real-time polymerase chain reaction (rt-PCR) from umbilical cord blood.

Methods: CMV DNA was detected by rt-PCR performed on infants’ cord blood. C-CMV was confirmed by urine culture (Shell-vial). All confirmed cases were further investigated for C-CMV manifestations by head ultrasound, complete blood count, liver enzyme measurement, ophthalmology examination and hearing investigation.

Results: During the period 1 June 2009 to 31 May 2010, 11,022 infants were born at the Sheba Medical Center, of whom 8105 (74%) were screened. Twenty-three (0.28%) were positive for CMV and 22 of them (96%) were confirmed by urine culture. Two additional infants, who had not been screened, were detected after clinical suspicion. All 24 infants were further investigated, and 3 (12.5%) had central nervous system involvement (including hearing impairment) and were offered intravenous ganciclovir for 6 weeks. Eighteen (82%) infants would not otherwise have been diagnosed.

Conclusions: The relatively low incidence of C-CMV detected in our screening program probably reflects the low sensitivity of cord blood screening. Nevertheless, this screening program reliably detected a non-negligible number of infants who could benefit from early detection. Other screening methods using saliva should be investigated further.

 

May 2013
G. Yaniv, O. Mozes, G. Greenberg, M. Bakon and C. Hoffmann
 Background: Misinterpretation of head computerized tomographic (CT) scans by radiology residents in the emergency department (ED) can result in delayed and even erroneous radiology diagnosis. Better knowledge of pitfalls and environmental factors may decrease the occurrence of these errors.

Objectives: To evaluate common misinterpretations of head CT scans by radiology residents in a level I trauma center ED.

Methods: We studied 960 head CT scans of patients admitted to our ED from January 2010 to May 2011. They were reviewed separately by two senior neuroradiologists and graded as being unimportant (score of 1), important but not requiring emergent treatment (score of 2), and important requiring urgent treatment (score of 3). We recorded the time of day the examination was performed, the year of residency, the site, subsite and side of the lesion, the pathology, the anatomical mistake, false-positive findings, and the attending neuroradiologists' score.

Results: A total of 955 examinations were interpreted of which 398 had misinterpreted findings that were entered into the database, with the possibility of multiple errors per examination. The overall misinterpretation rate was 41%. The most commonly missed pathologies were chronic infarcts, hypodense lesions, and mucosal thickening in the paranasal sinuses. The most common sites for misdiagnosis were brain lobes, sinuses and deep brain structures. The highest percentage of misinterpretation occurred between 14:30 and 20:00, and the lowest between 00:00 and 08:00 (P < 0.05). The overall percentage of errors involving pathologies with a score of 3 by at least one of the neuroradiologists was 4.7%. Third-year residents had an overall higher error rate and first-year residents had significantly more false-positive misinterpretations compared to the other residents.

Conclusions: The percentage of errors made by our residents in cases that required urgent treatment was comparable to the published data. We believe that the intense workload of radiology residents contributes to their misinterpretation of head CT findings.

 

March 2013
S. Luria, G. Rivkin, M. Avitzour, M. Liebergall, Y. Mintz and R. Mosheiff
 Background: Explosion injuries to the upper extremity have specific clinical characteristics that differ from injuries due to other mechanisms.

Objectives: To evaluate the upper extremity injury pattern of attacks on civilian targets, comparing bomb explosion injuries to gunshot injuries and their functional recovery using standard outcome measures.

Methods: Of 157 patients admitted to the hospital between 2000 and 2004, 72 (46%) sustained explosion injuries and 85 (54%) gunshot injuries. The trauma registry files were reviewed and the patients completed the Disabilities of Arm, Shoulder and Hand Questionnaire (DASH) and Short Form-12 (SF-12) after a minimum period of 1 year.

Results: Of the 157 patients, 72 (46%) had blast injuries and 85 (54%) had shooting injuries. The blast casualties had higher Injury Severity Scores (47% over a score of 16 vs. 22%, P = 0.02) and higher percent of patients treated in intensive care units (47% vs. 28%, P = 0.02). Although the Abbreviated Injury Scale score of the upper extremity injury was similar in the two groups, the blast casualties were found to have more bilateral and complex soft tissue injuries and were treated surgically more often. No difference was found in the SF-12 or DASH scores between the groups at follow up.  

Conclusions: The casualties with upper extremity blast injuries were more severely injured and sustained more bilateral and complex soft tissue injuries to the upper extremity. However, the rating of the local injury to the isolated limb is similar, as was the subjective functional recovery.

 

February 2013
O. Halshtok Neiman, S. Sadetzki, A. Chetrit, S. Raskin, G. Yaniv and C. Hoffmann
 Background: MRI differentiation between metastases and high grade gliomas is a challenging task. Contrast enhancement and size of edema do not provide clear-cut differentiators. The differences in the properties of the peritumoral edema between these tumor types may be exploited to distinguish between them, using MRI perfusion sequences, which are capable of imaging edema in the clinical setting and may be a reliable method to make this differentiation.

Objectives: To assess the ability of perfusion-weighted imaging to differentiate between high grade gliomas and brain metastases.

Methods: During 5 months, 21 patients (age 40–85, median age 61, 16 males and 5 females) with either glioblastoma multiforme (GBM) or metastasis (pathology proven), underwent MRI for assessment of the tumor prior to surgery. Most of the scans were done at 3 Tesla. The scans included perfusion-weighted imaging sequences. Perfusion in the tumor, in the peritumoral edema and in normal tissue were assessed using Functool® software. The ratios of tumor perfusion and peritumoral edema perfusion to normal tissue perfusion were calculated and compared.

Results: Bleeding artifact precluded perfusion assessment in four patients. There was no statistically significant difference between the tumor perfusion ratios of high grade gliomas and those of metastases. The edema perfusion ratios were higher in GBM than in metastases (P = 0.007).

Conclusions: Perfusion-weighted imaging of peritumoral edema can help to differentiate between GBM and metastases.

January 2013
M. Weyl Ben-Arush, A. Ben Barak, R. Bar-Deroma, S. Ash, G. Goldstein, H. Golan, H. Houri, D. Waldman, N. Nevo, R. Bar Shalom, A. Berniger, A. Nevelsky, A. Toren, I. Yaniv and A. Kuten
 Background: Palliative treatment of refractory neuroblastoma remains a significant clinical problem.

Objectives: To retrospectively determine the clinical response to 131I-MIBG therapy at low doses in patients with refractory neuroblastoma.

Methods: We performed a retrospective chart review of 10 patients with neuroblastoma treated with 131I-MIBG at Rambam Health Care Campus from 1994 to 2012. Clinical data, number of 131I-MIBG courses delivered, toxicities, and clinical responses were reviewed. MIBG scan was performed after each course.

Results: Twenty-one courses of 131I-MIBG were delivered to 10 patients (3 girls, 7 boys). Their mean age was 3.8 years (range 1.5–6 years). All patients received several protocols of chemotherapy including the high dose form. Three patients received three courses of 131I-MIBG with a minimum of 6 weeks between each course, five patients received two courses, and two patients received only one course. An objective response to the first course was obtained in nine patients and to the second course in six of eight, and in three children who underwent the third course the pain decreased. One patient has no evidence of disease, four are alive with disease, and five died of the disease. No unanticipated toxicities were observed.

Conclusions: Low dose 131I-MIBG is an effective and relatively non-toxic treatment in neuroblastoma disease palliation. Rapid and reproducible pain relief with 131I-MIBG was obtained in most of the children. Treatment with systemic radiotherapy in the form of low dose 131I-MIBG was easy to perform and effective in cases of disseminated neuroblastoma, demonstrating that this primary therapy can be used for palliative purposes.

November 2012
A. Golan, M. Dishi-Galitzky, J. Barda and S. Lurie

Background: The management of sexual assault victims comprises complex medical, psychological, social and judicial care that was previously provided by various disciplines at several distant locations. This novel concept is the delivery of comprehensive care to victims of sexual assault at one location 24 hours a day.

Objectives: To describe the characteristics of sexual assault victims, their assailants, the assault and the treatment, and provide descriptive data on the evidentiary examination.

Methods: We performed a retrospective analysis of the charts of all sexual assault victims presenting to the Regional Israeli Center for Care of Sexual Assault Victims between October 2000 and July 2010. The center, the first in Israel, provides comprehensive care to victims of sexual assault in one location 24 hours a day using a multidisciplinary approach.

Results: The study group comprised 1992 subjects; 91.5% of the victims were females and 8.5% were males, and the age ranged from 1 to 88 years (mean age 22.3 years). Of the 1992 victims, 1635 were single (82.2%), 195 were divorced (9.8%), 141 were married (7.1%), 18 were widowed (0.9%) and 3 were unspecified. The assailant was a stranger in 794 (39.8%) of the cases, someone familiar to the victim in 786 cases (39.0%), a partner in 127 cases (6.4%), a family member in 117 cases (5.9%), someone met via the internet in 53 cases (2.7%), an authority figure in 39 cases (2.0%), and unspecified in 76 (3.9%). In the majority of cases the attack occurred either in the evening or at night (71.7%).

Conclusions: We identified several risk factors for sexual assault that can be used in prevention programs. The sexual assault victim in our study tended to be a young, single woman who was attacked by a familiar assailant in the evening or at night. Our center provides comprehensive care to victims 24 hours a day at one location and includes a team of forensic, psychological, physical and legal specialists.
 

October 2012
E. Segal, S. Felder , N. Haim, H. Yoffe-Sheinman, A. Peer, M. Wollner, Z. Shen-Or and S. Ish-Shalom

 Background: Vitamin D status is not evaluated routinely in cancer patients with bone metastasis who are treated with bisphosphonates.

Objectives: To assess the effect of vitamin D status on risk of hypocalcemia and quality of life in these patients.

Methods: We performed laboratory tests for routine serum biochemistry, 25(OH)D, plasma parathyroid hormone (PTH) and bone turnover markers (CTX, P1NP) in 54 patients aged 57.5 ± 13 years treated with intravenous bisphosphonates.

Results: Most of the patients (n=44, 77.8%) did not receive calcium and vitamin D supplementation. Their mean serum 25(OH)D levels (12.83 ± 6.86 ng/ml) correlated with vitamin D daily intake (P = 0.002). In 53 patients (98.1%) 25(OH)D levels were suboptimal (< 30 ng/ml). Albumin-corrected calcium levels correlated with plasma PTH (P = 0.001). No correlation was observed between daily calcium intake and serum calcium (P = 0.45). Hypocalcemia was observed in one patient. Mean plasma PTH was 88.5 ± 65 ng/L. Plasma PTH correlated negatively with 25(OH)D serum levels (P = 0.003) and positively with P1NP (P = 0.004). Albumin-corrected calcium correlated negatively with P1NP (mean 126.9 ± 191 ng/ml) but not with CTX levels (mean 0.265 ± 0.1 ng/ml) (P < 0.001). There was no correlation among quality of life parameters, yearly sun exposure and 25(OH)D levels (P = 0.99).

Conclusions: Vitamin D deficiency is frequent in oncology patients with bone metastasis treated with bisphosphonates and might increase bone damage. Our results indicate a minor risk for the development of severe hypocalcemia in vitamin D-deficient patients receiving bisphosphonate therapy. Although vitamin D deficiency might have some effect on the quality of life in these patients, it was not proven significant.
 

July 2012
R. Nevzorov, T. Ben-Gal, B. Strasberg and M. Haim
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