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עמוד בית
Sat, 23.11.24

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April 2016
Luca Cantarini MD PhD, Maria L. Stromillo MD, Antonio Vitale MD, Giuseppe Lopalco MD, Giacomo Emmi MD PhD, Elena Silvestri MD, Antonio Federico MD, Mauro Galeazzi MD, Florenzo Iannone MD PhD and Nicola De Stefano MD PhD

Behçet's disease (BD) is a multi-systemic disorder of unknown etiology characterized by relapsing oral-genital ulcers, uveitis, and involvement of the articular, gastrointestinal, neurologic, and vascular systems. The choice of treatment is based on the severity of systemic involvement, clinical presentation and the site affected, and includes corticosteroids, azathioprine, interferon, cyclophosphamide, methotrexate or tumor necrosis factor-alpha and interleukin-1 blockers. We present a case series of four refractory BD patients successfully treated with intravenous immunoglobulins (IVIG). All patients fulfilled International Study Group criteria. The patients’ mean age was 38.75 ± 12.09 years and mean disease duration 10.25 ± 8.5 years. Human leukocyte antigen B51 was positive in two of four patients. In addition to oral aphthosis, all patients suffered from genital ulcers and cutaneous BD-related manifestations; central nervous system involvement and arthralgia were found in two patients. Peripheral nervous system, gastrointestinal and eye involvement occurred in 25% of cases. In all patients, previously treated according to EULAR recommendations without reaching satisfactory results, IVIG induced immediate and sustained response over time without incurring any side effects. We propose IVIG administration as an additional effective and safe treatment option in patients with severe and resistant BD.

January 2016
Josef Haik MD MPH, Stav Brown, Alon Liran MD, Oren Weissman MD, Batia Yaffe MD, Avraham Rivkind MD, Shai Efrati MD, Eyal Winkler MD and Yoram Epstein PhD
Philippe Biderman MD, Ilya Kagan MD, Zaza Jakobishvili MD, Michael Fainblut MD, Ynon Lishetzinsky MD and Jonathan Cohen MD
December 2015
May-Tal Rofe MD, Ran Levi PhD, Einat Hertzberg-Bigelman MSc, Pavel Goryainov MSc, Rami Barashi MD, Jeremy Ben-Shoshan MD PhD, Gad Keren MD and Michal Entin-Meer PhD
 

Background: Chronic kidney disease (CKD) is a prevalent clinical condition affecting 15% of the general population. Cardiorenal syndrome (CRS) type 4 is characterized by an underlying CKD condition leading to impairment of cardiac function and increased risk for major cardiovascular events. To date, the mechanisms leading from CKD to CRS are not completely understood. In particular, it is unclear whether the pathological changes that occur in the heart in the setting of CKD involve enhanced cell death of cardiac cells.  


Objectives: To assess whether CKD may mediate loss of cardiac cells by apoptosis. 


Methods: We established rat models for CKD, acute myocardial infarction (acute MI), left ventricular dysfunction (LVD), and sham. We measured the cardiac-to-body weight as well as kidney-to-body weight ratios to validate that renal and cardiac hypertrophy occur as part of disease progression to CRS. Cardiac cells were then isolated and the percent of cell death was determined by flow cytometry following staining with annexin-FITC and propidium iodide. In addition, the levels of caspase-3-dependent apoptosis were determined by Western blot analysis using an anti-cleaved caspase-3 antibody. 


Results: CKD, as well as acute MI and LVD, resulted in significant cardiac hypertrophy. Nevertheless, unlike the increased levels of cell death observed in the acute MI group, in the CKD group, cardiac hypertrophy was not associated with induction of cell death of cardiac cells. Caspase-3 activity was even slightly reduced compared to sham-operated controls. 


Conclusions: Our data show that while CKD induces pathological changes in the heart, it does not induce cardiac cell death. 


 

 
Orly Goitein MD, Elio Di Segni MD, Yael Eshet MD, Victor Guetta MD, Amit Segev MD, Eyal Nahum MD, Ehud Raanani MD, Eli Konen MD and Ashraf Hamdan MD

Background: Trans-catheter valve implantation (TAVI) is a non-surgical alternative for patients with severe aortic stenosis (AS). Pre-procedural computed tomography angiography (CTA) allows accurate “road mapping,” aortic annulus sizing and the detection of incidental findings.

Objectives: To document the prevalence of non-valvular extra-cardiac findings on CTA prior to TAVI and the impact of these findings on the procedure.  

Methods: Ninety AS patients underwent CTA as part of pre-TAVI planning. Scans extended from the clavicles to the groin. Non-vascular non-valvular findings were documented and graded as follows: (A) significant findings causing TAVI cancellation or postponement, (B) significant findings leading to a change in the TAVI procedure approach, (C) non-significant findings not affecting the TAVI procedure. 

Results: TAVI was planned for 90 patients; their average age was 80.2 ± 7.5 years, 53% were females. Overall, non-valvular cardiac, extra-cardiac and extra-vascular significant and non-significant incidental findings were documented in 97% of scans (87/90). Significant pathologies causing TAVI cancellation or postponement (category A) were documented in 8%. Significant findings affecting the TAVI procedure (category B) were found in 16% of patients. 

Conclusions: Pre-TAVI CTA detected non-valvular extra-vascular pathologies leading to procedure cancellation/postponement or procedure modification in 8% and 16%, respectively. Comprehensive CTA evaluation that acknowledges the importance of such findings is of major importance since it might alter the TAVI procedure or even render it inappropriate. 

 

November 2015
Therese Fuchs MD and Amram Torjman MSc

Background: Brief episodes of atrial tachycardia are a common finding in the Holter monitor recordings of elderly patients. Episodes of atrial tachycardia may convert to atrial fibrillation. Current guidelines do not recommend anticoagulant therapy in patients with atrial tachycardia and risk factors for embolism. 

Objectives: To assess the incidence of atrial tachycardia in a 24 hour Holter monitor recording of patients admitted to hospital with ischemic stroke. 

Methods: The patient cohort included two groups: 134 patients admitted with a diagnosis of ischemic stroke (the study group), and 68 consecutive patients admitted with a diagnosis of syncope (the control group). Both groups used a Holter monitor.

Results: There was no difference in the incidence of atrial tachycardia runs between the groups. Patients who suffered a stroke were more likely to be hypertensive (P < 0.05) and more likely to have a CHA2DS2-VASc score of ≥ 3 (P = 0.05).

Conclusions: Atrial tachycardia as recorded on a Holter monitor was not more prevalent in patients presenting with ischemic stroke. The occurrence of atrial tachycardia is not an indication for systemic anticoagulation. 

 

Zaher Bahouth MD, Rani Zreik MD, Assaf Graif MD, Ofer Nativ MD, Sarel Halachmi MD and Giora Pillar MD

Background: Erectile dysfunction (ED), a common problem in males of all ages, can be of organic, psychogenic or combined etiology. Organic ED is mainly caused by vascular and neurological disorders. One of the available tests for differentiating organic from inorganic ED is measuring penile tumescence and rigidity during the REM phase of sleep. However, this test lacks the ability to differentiate between a vascular and non-vascular cause of organic ED. 

Objectives: To compare the results of the EndoPAT test and the nocturnal penile tumescence (NPT) test in patients with erectile dysfunction.

Methods: Twenty patients with ED were recruited for the study. Each participant was evaluated by the SHIM score, RigiScan during polysomnography, and two EndoPAT tests (at the beginning and end of the study).

Results: Seventeen patients had SHIM score ≤ 21; 4 of them had organic ED with a mean EndoPAT score of 1.49, significantly lower than the 1.93 mean EndoPAT score of the 11 patients in the psychogenic ED group (P = 0.047). Two participants had a neurological impairment (spinal trauma and herniated disk). The average SHIM score in the vascular organic group was 6.25 points as compared to 11.69 for the psychogenic group (P = 0.027). The positive predictive value was 43% and the negative predictive value 90%.

Conclusions: EndoPAT could be helpful in excluding organic ED.

 

Oren Gordon MD PhD, Sinan Abu-Leil MD, Yotam Almagor MD, Elite Cohen MD, Alexander Margulis MD, Dan Arbell MD, Benjamin Bar-Oz and Smadar Eventov-Friedman MD PhD
October 2015
Bshara Mansour MD and Nael Elias MD MHA

Background: Foreign body aspiration (FBA) is common in the pediatric population and if not diagnosed and treated properly can lead to major complications. 

Objectives: To define the clinical and radiological features of aspirated foreign bodies, characterize the incidence of FBA among the Israeli-Arab population, and evaluate flexible bronchoscopy as a diagnostic tool prior to performing rigid bronchoscopy.

Methods: We reviewed the e-files of 115 children who underwent bronchoscopy for suspected FBA between January 2006 and December 2010 in the pediatric department of the St. Vincent French Hospital, Nazareth.

Results: We identified 44 patients (38.3%) who had foreign body aspiration (mean age 31.2 ± 29 months, males 64%). Organic-type foreign body was seen in 70% of cases and location was equally distributed. Statistically significant correlations were found between the presence of a foreign body and a history of choking, abnormal lung auscultation, and abnormal chest X-ray (P < 0.05). The rate of negative finding in rigid bronchoscopy in our study was as low as 15% (in only 8 of 52 rigid bronchoscopies was the finding negative for FBA). Compared with other centers in our region where rigid bronchoscopy was performed without the preceding flexible procedure, we found that our protocol reduced the rate of negative rigid bronchoscopies.

Conclusions: Introducing flexible bronchoscopy initially in FBA management reduced the rate of negative rigid bronchoscopies.

 

Jonathan E. Cohen MD PhD, Yasmin Cohen MD, Tamar Peretz MD and Ayala Hubert MD

Background: Predictive biomarkers for personalized treatment of neoplasms are suggested to be a major advancement in oncology and are increasingly used in clinical practice, albeit based on level II evidence. Target Now® (TN) employs immunostaining and RNA expression on tumor samples to identify potentially beneficial or ineffective drugs. 

Objectives: To explore retrospectively the predictive value of TN for patients with colorectal and gastric carcinomas. 

Methods: The study group comprised colorectal and gastric carcinoma patients with TN test reports. We identified chemotherapy regimens given for stage IV disease for which TN reports indicated prediction. Protocols were classified as having clinical benefit (CB; i.e., stable disease or any objective response) or progressive disease, and this was compared with the TN prediction. 

Results: Nineteen patients – 12 colorectal and 7 gastric carcinomas – met the inclusion criteria. There were 26 evaluable treatment protocols; of 18 with a CB 15 were predicted to have a CB while 3 were predicted to have a lack of CB. Of eight protocols that had no CB, seven were predicted to have a CB and one was predicted to have a lack of CB. A chi-square test was non-significant (P = 0.78). An exploratory analysis yielded a positive predictive value of 68% and a sensitivity of 83% for the TN test. 

Conclusions: This study emphasizes the need for larger multicenter studies to validate the TN test before it is adopted into clinical practice. 

 

Alon Nevet MD PhD, Talia Polak MD, Ovdi Dagan MD and Yehezkel Waisman MD

Background: Extracorporeal membrane oxygenation (ECMO) may serve as a bridge to regain cardiac function in refractory resuscitation. However, its use has so far been limited owing to low availability, especially in emergency departments. 

Objectives: To describe two children with acute myocarditis successfully treated with ECMO in the emergency department of a tertiary pediatric medical center. 

Description: The children presented with vomiting, followed by rapid deterioration to cardiogenic shock that failed to respond to conservative treatment. Given the urgency of their condition and its presumably reversible (viral) etiology, treatment with ECMO was initiated in the department’s resuscitation room. 

Results: Outcome was excellent, and cardiac function remained normal throughout 6 and 10 months follow-up. 

Conclusions: Extracorporeal life support has enormous potential in the emergency department and warrants further assessment.  

August 2015
June 2015
Yuval Tal MD PhD, Ido Weinberg MD MSc, Arie Ben-Yehuda MD and Mordechai Duvdevani MD
June 2015
Shachar Kenan MD, Aviram Gold MD, Moshe Salai MD, Ely Steinberg MD, Ran Ankory MD and Ofir Chechik MD

Background: The surgical treatment of hip fractures remains controversial especially when considering age. 

Objectives: To investigate the long-term functional outcomes of displaced subcapital hip fractures that were reduced and surgically fixed using parallel cannulated screws in patients aged 60 years and younger. 

Methods: During the period 1996–2005, 27 patients under age 60 with displaced subcapital hip fractures classified as Garden III or IV were treated with fracture reduction and surgical internal fixation using cannulated screws. Patient outcomes were assessed using the Harris Hip Score (HHS) and physical examination.

Results: During a follow-up period of 8–17 years 4 of the 27 patients (14.8%) developed non-union/femoral head avascular necrosis and had undergone hip arthroplasty. All reoperations were performed within the first year after fracture fixation, all in the 50–60 year old age group. The revision rate among patients 50–60 years old was significantly higher than that of patients 50 years and younger (40% vs. 0%, P = 0.037). Mean HHS was higher for patients not requiring revision surgery (85.4) than for patients with revision surgery (75.5), but this difference was not significant.

Conclusions: Internal fixation using fracture reduction and cannulated screw fixation is a successful treatment modality for displaced subcapital hip fractures in patients younger than 50 years old. Patients aged 50–60 years may have a higher risk of avascular necrosis or non-union and require arthroplasty, often within the first year after fracture fixation. The long-term outcome following these fractures is good when excluding patients who had early complications.

 

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