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עמוד בית
Fri, 05.12.25

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March 2013
A. Ber and D.S. Seidman
 Background: The insertion of a levonorgestrel-releasing intrauterine system (LNG-IUS) requires experience and is associated with a low failure rate.

Objectives: To assess the reasons given by gynecologists why they failed to insert a LNG-IUS.

Methods: We obtained data from the sole distributor in Israel that prospectively recorded these cases when contacted by gynecologists following an insertion failure.

Results: The mean rate of failed insertions was 0.95% (range 0.77–1.03%) for the 5 year study period 2006–2010. The most common reasons reported by gynecologists for LNG-IUS insertion failure were loss of sterility of the device, inability to insert the device due to a stenotic cervical canal, accidental removal of the device following a successful insertion due to hasty removal of the inserter or the use of blunt scissors, and removal of the newly inserted LNG-IUS following ultrasound evidence that it was misplaced.

Conclusions:  Gynecologists should be aware of the common pitfalls associated with insertion of an LNG-IUS. Several techniques that may aid in avoiding these mishaps are described.

A. Shauer, I. Gotsman, A. Keren, D.R. Zwas, Y. Hellman, R. Durst and D. Admon
 Acute myocarditis is one of the most challenging diseases to diagnose and treat in cardiology. The true incidence of the disease is unknown. Viral infection is the most common etiology. Modern techniques have improved the ability to diagnose specific viral pathogens in the myocardium. Currently, parvovirus B19 and adenoviruses are most frequently identified in endomyocardial biopsies. Most patients will recover without sequelae, but a subset of patients will progress to chronic inflammatory and dilated cardiomyopathy. The pathogenesis includes direct viral myocardial damage as well as autoimmune reaction against cardiac epitopes. The clinical manifestations of acute myocarditis vary widely – from asymptomatic changes on electrocardiogram to fulminant heart failure, arrhythmias and sudden cardiac death. Magnetic resonance imaging is emerging as an important tool for the diagnosis and follow-up of patients, and for guidance of endomyocardial biopsy. In the setting of acute myocarditis endomyocardial biopsy is required for the evaluation of patients with a clinical scenario suggestive of giant cell myocarditis and of those who deteriorate despite supportive treatment. Treatment of acute myocarditis is still mainly supportive, except for giant cell myocarditis where immunotherapy has been shown to improve survival. Immunotherapy and specific antiviral treatment have yet to demonstrate definitive clinical efficacy in ongoing clinical trials. This review will focus on the clinical manifestations, the diagnostic approach to the patient with clinically suspected acute myocarditis, and an evidence-based treatment strategy for the acute and chronic form of the disease.

 

November 2012
K. Parakh, M.M. Kittleson, B. Heidecker, I.S. Wittstein, D.P. Judge, H.C. Champion, L.A. Barouch, K.L. Baughman, S.D. Russell, E.K. Kasper, K.K. Sitammagari and J.M. Hare

Background: Determining the prognosis of patients with heart failure is essential for patient management and clinical trial conduct. The relative value of traditional prognostic criteria remains unclear and the assessment of long-term prognosis for individual patients is problematic.

Objectives: To determine the ability of clinical, hemodynamic and echocardiographic parameters to predict the long-term prognosis of patients with idiopathic dilated cardiomyopathy.

Methods: We investigated the ability of clinical, hemodynamic and echocardiographic parameters to predict the long-term prognosis of individual patients in a large, representative, contemporary cohort of idiopathic dilated cardiomyopathy (IDCM) patients referred to Johns Hopkins from 1997 to 2004 for evaluation of cardiomyopathy. In all patients a baseline history was taken, and physical examination, laboratory studies, echocardiogram, right heart catheterization and endomyocardial biopsy were performed.

Results: In 171 IDCM patients followed for a median 3.5 years, there were 50 long-term event-free survivors (LTS) (median survival 6.4 years) and 34 patients died or underwent ventricular assist device placement or transplantation within 5 years (NLTS; non-long-term survivors) (median time to event 1.83 years. Established risk factors (gender, race, presence of diabetes, serum creatinine, sodium) and the use of accepted heart failure medications (angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, beta blockers) were similar between the two groups. Although LTS had younger age, higher ejection fraction (EF) and lower New York Heart Association (NYHA) class at presentation, the positive predictive value of an EF< 25% was 64% (95% CI 41%–79%) and of NYHA class > 2 was 53% (95% CI 36–69%). A logistic model incorporating these three variables incorrectly classified 29% of patients.

Conclusions: IDCM exhibits a highly variable natural history and standard clinical predictors have limited ability to classify IDCM patients into broad prognostic categories. These findings suggest that there are important host-environmental factors still unappreciated in the biology of IDCM.
 

September 2012
J. Ben-Shoshan, M. Entin-Meer, H. Guzner-Gur and G. Keren

Heart failure (HF) accompanied by renal failure, termed cardiorenal syndrome (CRS), encompasses both the development and worsening of renal insufficiency secondary to HF as well as the harmful effects of impaired renal function on the cardiovascular system, and remains a universal clinical challenge. CRS was recently classified into subtypes depending on the etiologic and chronologic interactions between cardiac and renal dysfunctions. The mechanisms underlying the CRS are multifactorial, including hemodynamic alterations, neurohormonal effects, and inflammatory components. However, despite enhanced understanding and awareness of CRS, further elucidation of the mechanisms involved and the appropriate treatment approaches are clearly warranted. CRS is a difficult condition to manage, as treatment to relieve congestive symptoms of HF is limited by a further decline in renal functions, itself a major independent predictor of long-term cardiac morbidity. In order to perform a proper clinical investigation and implement appropriate treatment that will minimize subsequent progression of heart and kidney injury, a comprehensive approach to these two pathologies is crucial. In the present review we discuss current theories behind the mechanistic evolution of the CRS as well as therapeutic issues regarding this multifaceted condition.
 

August 2012
A.Gefen, M. Weyl Ben Arush, I. Eisenstein, E. Vlodavsky, R. Abdah-Bortnyak and S. Postovsky
March 2012
B. Zafrir and O. Amir

Beta blockers are a fundamental treatment in chronic heart failure (HF), yet concern and disagreement regarding their role in the treatment of decompensated HF and during hospitalization are common in clinical practice. This review summarizes the literature on various aspects of beta blocker treatment during acute and chronic decompensated HF. In recent years evidence has accumulated concerning the efficacy and tolerability of beta blockers in decompensated HF. Clinical analyses show that withdrawal of chronic beta blockade should be avoided when possible during hospitalization and that beta blocker therapy be initiated as soon as hemodynamic stability and a euvolemic state are achieved. This strategy may increase adherence to beta blockers after discharge and lower rehospitalization and mortality rates. We also discuss the various positive inotrope regimens (phosphodiesterase inhibitors, levosimendan, dobutamine) and their interactions with beta blockers in decompensated HF.

August 2011
I. Gotsman, D. Zwas, Z. Zemora, R. Jabara, D. Admon, C. Lotan and A. Keren

Background: Patients with heart failure (HF) have a poor prognosis. Heart failure centers with specialized nurse-supervised management programs have been proposed to improve prognosis.

Objectives: To evaluate the clinical outcome of patients with HF treated at a multidisciplinary HF center of Clalit Health Services in Jerusalem in collaboration with Hadassah University Hospital.

Methods: We evaluated clinical outcome including hospitalizations and death in all HF patients followed at the HF center for 1 year.

Results: Altogether, 324 patients were included and followed at the HF center; 58% were males with a mean age of 76 ± 11 years, and 58% were in New York Heart Association (NYHA) functional class 3-4. The overall 1 year survival rate was 91% and the 1 year hospitalization rate 29%. Comparing patients in the HF center to the whole cohort of patients with a diagnosis of HF (N=6618) in Clalit Health Services in Jerusalem demonstrated a similar 1 year survival rate: 91% vs. 89% respectively but with a significantly reduced hospitalization rate: 29% vs. 42% respectively (P < 0.01). Cox regression analysis demonstrated that treatment in the HF center was a significant predictor of reduced hospitalization after adjustment for other predictors (hazard ratio 0.65, 95% confidence interval 0.530.80, P < 0.0001). A subset of patients that was evaluated (N=78) showed significantly increased compliance. NYHA class improved in these patients from a mean of 3.1 ± 0.1 to 2.6 ± 0.1 after treatment (P < 0.0001).

Conclusions: Supervision by dedicated specialized nurses in a HF center increased compliance, improved functional capacity in HF patients, and reduced hospitalization rate. HF centers should be considered part of the standard treatment of patients with symptomatic HF.
 

E.Y. Birati and A. Roth

Telemedicine is the application of advanced telecommunication technology for diagnostic, monitoring and therapeutic purposes. It enables data transmission from the patient's whereabouts or his/her primary care provider to a specialized medical call center. Telecardiology is a highly developed medical discipline involving almost every aspect of cardiology, including acute coronary syndromes, arrhythmias, congestive heart failure, sudden cardiac arrest and others. Israel is one of the leading countries in the use of telecardiology, achieving both extended survival, improvement of the patient's quality of life, and significant reduction in health costs. 

July 2011
I. Gabizon, A. Shiyovich, V. Novack, V. Khalameizer, H. Yosefy, S.W. Moses and A. Katz

Background: As the lowest natural site on earth (-415 meters), the Dead Sea is unique for its high pressure and oxygen tension in addition to the unparalleled combination of natural resources. Furthermore, its balneotherapeutic resorts have been reported to be beneficial for patients with various chronic diseases.

Objectives: To evaluate the safety, quality of life (QoL), exercise capacity, heart failure, and arrhythmia parameters in patients with systolic congestive heart failure (SCHF) and implantable cardioverter defibrillator (ICD) following descent and stay at the Dead Sea.

Methods: The study group comprised patients with SCHF, New York Heart Association functional class II-III after ICD implantation. The following parameters were tested at sea level one week prior to the descent, during a 4 day stay at the Dead Sea, and one week after return: blood pressure, O2 saturation, ejection fraction (echocardiography), weight, B-type natriuretic peptide (BNP), arrhythmias, heart rate, heart rate variability (HRV), and QoL assessed by the Minnesota Living with Heart Failure questionnaire.

Results: We evaluated 19 patients, age 65.3 ± 9.6 years, of whom 16 (84%) were males and 18 (95%) had ICD-cardiac resynchronization therapy. The trip to and from and the stay at the Dead Sea were uneventful and well tolerated. The QoL score improved by 11 points, and the 6 minute walk increased by 63 meters (P < 0.001). BNP levels slightly increased with no statistical significance. The HRV decreased (P = 0.018). There were no significant changes in blood pressure, weight, O2 saturation or ejection fraction.

Conclusions: Descent to, ascent from, and stay at the Dead Sea resort are safe and might be beneficial in some aspects for patients with sCHF and an ICD.
 

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