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עמוד בית
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August 2012
A. Shturman, A. Bickel and S. Atar

Background: The prognostic value of P-wave duration has been previously evaluated by signal-averaged ECG (SAECG) in patients with various arrhythmias not associated with acute myocardial infarction (AMI).

Objectives: To investigate the clinical correlates and prognostic value of P-wave duration in patients with ST elevation AMI (STEMI).

Methods: The patients (n=89) were evaluated on the first, second and third day after admission, as well as one week and one month post-AMI. Survival was determined 2 years after the index STEMI.

Results: In comparison with the upper normal range of P-wave duration (< 120 msec), the P-wave duration in STEMI patients was significantly increased on the first day (135.31 ¡À 29.29 msec, P < 0.001), up to day 7 (127.17 ¡À 30.02 msec, P = 0.0455). The most prominent differences were observed in patients with left ventricular ejection fraction (LVEF) ¡Ü 40% (155.47 ¡À 33.8 msec), compared to LVEF > 40% (128.79 ¡À 28 msec) (P = 0.001). P-wave duration above 120 msec was significantly correlated with increased complication rate namely, sustained ventricular tachyarrhythmia (36%), congestive heart failure (41%), atrial fibrillation (11%), recurrent angina (14%), and re-infarction (8%) (P = 0.012, odds ratio 4.267, 95% confidence interval 1.37¨C13.32). P-wave duration of 126 msec on the day of admission was found to have the highest predictive value for in-hospital complications including LVEF < 40% (area under the curve 0.741, P < 0.001).  However, we did not find a significant correlation between P-wave duration and mortality after multivariate analysis.

Conclusions: P-wave duration as evaluated by SAECG correlates negatively with LVEF post- STEMI, and P-wave duration above 126 msec can be utilized as a non-invasive predictor of in-hospital complications and low LVEF following STEMI.

July 2012
S. Giryes, E. Leibovitz, Z. Matas, S. Fridman, D. Gavish, B. Shalev, Z. Ziv-Nir, Y. Berlovitz and M. Boaz
Background: Depending on the definition used, malnutrition is prevalent among 20¨C50% of hospitalized patients. Routine nutritional screening is necessary to identify patients with or at increased risk for malnutrition. The Nutrition Risk Screening (NRS 2002) has been recommended as an efficient tool to identify the risk of malnutrition in adult inpatients.

Objectives: To utilize the NRS 2002 to estimate the prevalence of malnutrition among newly hospitalized adult patients, and to identify risk factors for malnutrition.

Methods: During a 5 week period, all adult patients newly admitted to all inpatient departments (except Maternity and Emergency) at Wolfson Medical Center, Holon, were screened using the NRS 2002. An answer of yes recorded for any of the Step 1 questions triggered the Step 2 screen on which an age-adjusted total score ¡Ý 3 indicated high malnutrition risk.

Results: Data were obtained from 504 newly hospitalized adult patients, of whom 159 (31.5%) were identified as high risk for malnutrition. Malnutrition was more prevalent in internal medicine than surgical departments: 38.6% vs. 19.1% (P < 0.001). Body mass index was within the normal range among subjects at high risk for malnutrition: 23.9 ¡À 5.6 kg/m2 but significantly lower than in subjects at low malnutrition risk: 27.9 ¡À 5.3 kg/m2 (P < 0.001). Malnutrition risk did not differ by gender or smoking status, but subjects at high malnutrition risk were significantly older (73.3 ¡À 16.2 vs. 63.4 ¡À 18.4 years, P < 0.001). Total protein, albumin, total cholesterol, low density lipoprotein-cholesterol, hemoglobin and %lymphocytes were all significantly lower, whereas urea, creatinine and %neutrophils were significantly higher in patients at high malnutrition risk.

Conclusions: Use of the NRS 2002 identified a large proportion of newly hospitalized adults as being at high risk for malnutrition. These findings indicate the need to intervene on a system-wide level during hospitalization.
R. Marom, R. Lubetzky, F.B. Mimouni, H. Bassan, L. Ben Sira, I. Berger, S. Dollberg and D. Mandel

Background: Infants with severe intraventricular-periventricular hemorrhage (IVH) have higher absolute nucleated red blood cell counts (aNRBC) at birth (a marker of intrauterine hypoxia) than controls. Periventricular leukomalacia (PVL) is known to be associated with prenatal and postnatal events. Whether PVL is also linked to intrauterine hypoxia is unknown.

Objectives: To test the hypothesis that infants with PVL have higher aNRBC counts at birth than controls.

Methods: We studied 14 very low birth weight infants with PVL and compared them with 14 pair-matched controls without PVL. Head ultrasound scans were performed in all infants on days 3–5 and 21–25 of life. Paired tests, Fisher exact tests and stepwise logistic regression were performed for analysis.

Results: Groups were similar for gestational age (GA), birth weight (BW), prolonged rupture of membranes (PROM), Apgar scores, IVH, and aNRBC counts. PVL correlated significantly with low partial pressure of CO2 (pCO2) and IVH (P < 0.01). In logistic regression, when GA, gender, PROM, antenatal steroid therapy, 1 (or 5) minute Apgar scores, IVH grade, nosocomial sepsis, patent ductus arteriosus, necrotizing enterocolitis (NEC), need for pressors, aNRBC counts and lowest pCO2 were used as independent variables, pCO2 (P = 0.002), IVH grade (P = 0.001), GA (P = 0.038), NEC (P = 0.061) and use of dopamine (P = 0.010) remained in the analysis (total R2 = 68.2%).

Conclusions: In contrast to severe IVH, aNRBC counts do not predict the development of PVL.

G. Yahalom, A. Yagoda, C. Hoffmann, O. Dollberg and N. Gadoth
June 2012
E. Atar, C. Neiman, E. Ram, M. Almog, I. Gadiel and A. Belenky

Background: The presence of stones in the common bile duct (CBD) may cause complications such as obstructing jaundice or ascending cholangitis, and the stones should be removed.

0bjectives: To report our results with percutaneous elimination of CBD stones from the gallbladder through the papilla.

Methods: During a 4 year period, six patients (five men and one woman, mean age 71.5 years) who had CBD stones and an existing gallbladder drain underwent percutaneous stone push into the duodenum after balloon dilatation of the papilla, with a diameter equal to that of the largest stone. Access into the CBD was from the gallbladder, using an already existing percutaneous gallbladder drain (cholecystostomy tube).

Results: Each patient had one to three CBD stones measuring 7–14 mm. Successful CBD stone elimination into the duodenum was achieved in five of the six patients. The single failure occurred in a patient with choledochal diverticulum, who was operated successfully. There were no major or minor complications during or after the procedures.

Conclusions: Trans-cholecystic CBD stone elimination is a safe and feasible percutaneous technique that utilizes existing tracts, thus obviating the need to create new percutaneous access. This procedure can replace endoscopic or surgical CBD exploration.
 

February 2012
L.V. Lage, J.F. de Carvalho, M.T.C. Caleiro, N.H. Yoshinari, L.M.H. da Mota, M.A Khamashta and W. Cossermelli

Background: Antibodies directed against endothelial cell surface antigens have been described in many disorders and have been associated with disease activity. Since the most prominent histopathologic feature in mixed connective tissue disease (MCTD) is the widespread and unique proliferative vascular lesion, our aim was to evaluate the frequency of anti-endothelial cell antibodies (AECA) in this condition.

Objectives: To evaluate the frequency of AECA in this disease and assess its clinical and laboratory associations.

Methods: Seventy-three sera from 35 patients with MCTD (Kasukawa’s criteria), collected during a 7 year period, were tested for immunoglobulins G and M (IgG and IgM) AECA by cellular ELISA, using HUVEC (human umbilical vein endothelial cells). Sera from 37 patients with systemic lupus erythematosus (SLE), 22 with systemic sclerosis (SSc) and 36 sera from normal healthy individuals were used as controls. A cellular ELISA using HeLa cells was also performed as a laboratory control method.

Results: IgG-AECA was detected in 77% of MCTD patients, 54% of SLE patients, 36% of SSc patients and 6% of normal controls. In MCTD, IgG-AECA was associated with vasculitic manifestations, disease activity and lymphopenia, and was also a predictor of constant disease activity. Immunosuppressive drugs were shown to reduce IgG-AECA titers. Since antibodies directed to HeLa cell surface were negative, AECA was apparently unrelated to common epitopes present on epithelial cell lines.

Conclusions: AECA are present in a large proportion of patients with MCTD and these antibodies decrease after immunosuppressive treatment.


 
D. Bendayan, A. Hendler, K. Litman and V. Polansky
Background: Interferon-gamma release tests are appealing alternatives to the tuberculin skin test (TST) for latent tuberculosis infection.

Objectives: To determine the yield of the Quantiferon TB Gold test (QFT-G) in the diagnosis of active tuberculosis disease, with a focus on elderly patients, human immunodeficiency virus (HIV) co-infection, and extra-pulmonary tuberculosis (EPTB).

Methods: The QFT-G test was performed in 98 patients suspected of having active tuberculosis. The results were evaluated for each subgroup of patients and compared to the results of the TST.

Results: Active tuberculosis was diagnosed in 92 of the 98 patients. Sixteen (17.3%) were elderly patients (over age 70), 15 (16%) were co-infected with HIV, and 14 (15%) had EPTB. QFT-G was positive in 49 patients (53%) and indeterminate in 4. The results were not significantly affected by HIV co-infection (P = 0.17), old age (P = 0.4), or the presence of EPTB (P = 0.4). There was a good correlation between the TST and the QFT-G test (P < 0.001). In EPTB and in the elderly, the QFT-G test appears to be better than the TST.

Conclusions: The QFT-G test is suboptimal in its ability to detect active tuberculosis and should not be used to exclude it.
January 2012
Michael B. Levy, MD, Michael R. Goldberg, MD, PhD, Liat Nachshon, MD, Elvan Tabachnik, MD and Yitzhak Katz, MD

Background: Most reports in the medical literature on food allergy mortality are related to peanuts and tree nuts. There is limited knowledge regarding these reactions and often only a partial medical history is described.

Objective: To record and characterize all known cases of mortality due to food allergy in Israel occurring during the period 2004–2011.

Methods: All cases of food allergy-related mortality that were known to medical personnel or were published in the Israeli national communications media were investigated. We interviewed the parents and, when feasible, physicians who treated the final event.

Results: Four cases of food-related mortality were identified: three cases were due to cow’s milk and one to hazelnut. All were exposed to a hidden/non-obvious allergen. All four had a history of asthma but were not on controller medications, and all had experienced previous non-life threatening accidental reactions. Three of the four patients had not been evaluated by an allergist, nor were they prescribed injectable epinephrine. The one patient who had been prescribed injectable epinephrine did not use it during her fatal anaphylactic attack.

Conclusions: Fatal reactions to cow’s milk and hazelnut but not to peanut are the only reported food mortality cases in Israel. Although these patients had previous reactions following accidental exposures, none had experienced a life-threatening reaction. Patients at risk are not adequately evaluated by allergists, nor are they prescribed and instructed on the proper use of injectable epinephrine. Cow’s milk should be considered a potentially fatal allergen.




 



 
December 2011
A.Ben-Haroush, J. Farhi, I. Ben-Aharon, O. Sapir, H. Pinkas and B. Fisch

Background: Adjuvant/neoadjuvant chemotherapy in breast cancer patients may be associated with amenorrhea and a marked reduction in ovarian reserve.

Objectives: To assess the use of letrozole with follicle-stimulating hormone (FSH) in gonadotropin-releasing hormone (GnRH) analogue protocols, based on reported attempts to avoid the estradiol (E2) increase during controlled ovarian hyperstimulation for embryo cryopreservation in breast cancer patients using a combination of low dose FSH and aromatase inhibitor (letrozole) in a GnRH-antagonist protocol.

Methods: Twenty-four breast cancer patients were treated with recombinant FSH (150–450 U/day) and letrozole (5 mg/day) in a long GnRH-agonist (n=7) or GnRH-antagonist (n=17) protocol. After oocyte retrieval, insemination and/or intracytoplasmic sperm injection was performed. The embryos were frozen.

Results: The average interval from surgery to oocyte retrieval was 40 days. Average duration of treatment was 9.6 days and mean peak E2 level 1342 ± 1091 pmol/L, yielding 16.0 ± 16.3 oocytes (range 0–82). Mean fertilization rate was 69.5 ± 20.4% and mean number of embryos cryopreserved 10.3 ± 9.3. More oocytes were retrieved with the long GnRH protocol, but the difference was not statistically significant (24.8 ± 24.6 vs. 12.0 ± 8.8 pmol/L, P = 0.07).

Conclusions: As previously reported, ovarian stimulation with letrozole and FSH, in both the long GnRH-agonist and GnRH-antagonist protocols, is apparently effective in breast cancer patients and spares them exposure to high E2 levels.
 

T. Smolkin, I. Ulanovsky, S. Blazer and I.R. Makhoul
October 2011
A. Gadoth, E. Aurie, H. Shaim and N.M. Bornstein

Background: In the past, carotid endarterectomy (CEA) was the only modality for invasive intervention in cases of carotid stenosis. Due to improvements in endovascular techniques (stenting), there is a growing debate regarding the preferred procedure for carotid intervention.

Objectives: To compare the 30 day complication rate after CEA and carotid angioplasty and stenting (CAS) in a tertiary medical center in Israel between the years 2008 and 2010.

Methods: We reviewed the medical charts of all the patients who underwent either CEA or CAS of the internal carotid artery due to symptomatic and asymptomatic stenosis during the period 20082010 (total of 128 patients).

Results: There was no difference between the groups in the rate of severe complications in the peri-procedural period. Mild complications were non-significantly more common in the CEA group (17%) compared to the CAS group (7.1%).

Conclusions: There was no significant difference in the mild and severe complications rate between CEA and CAS in the peri-procedural period.

September 2011
I. Rabin, A. Kapiev, B. Chikman, Z. Halpern, N. Poluksht, I. Wassermann, J. Sandbank and A. Halevy

Background: Gastric stump cancer is often described as a tumor with a poor prognosis and low resectability rates.

Objectives: To compare the pathological characteristics of gastric stump cancer patients with those of patients with proximal gastric cancer.

Methods: This retrospective study was based on the demographic and pathological data of patients diagnosed with gastric cancer and treated at Assaf Harofeh Medical Center during an 11 year period. The patients were divided into two groups: those undergoing proximal gastrectomy for proximal gastric cancer and those undergoing total gastrectomy for gastric stump cancer.

Results: Patients with gastric stump cancer were predominantly male, older (P = 0.202, not significant), and had a lower T stage with less signet-ring type histology, fewer harvested and fewer involved lymph nodes (P = 0.03, statistically significant) and less vascular/lymphatic involvement than patients with proximal gastric cancer.

Conclusions: The lower incidence of involved lymph nodes and lymphovascular invasion in gastric stump cancer as compared to proximal gastric cancer in this study may imply that the prognosis of gastric stump cancer may be better than that of proximal gastric cancer. However, to verify this assumption a study comparing patient survival is required.
 

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