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001-es BibID:	BIBFORM030333
Első szerző:	Heerebeek, Loek, van
Cím:	Response to Letter Regarding Article, "Diastolic Stiffness of the Failing Diabetic Heart : Importance of Fibrosis, Advanced Glycation End Products, and Myocyte Resting Tension" / van Heerebeek L., Hamdani N., Handoko M. L., Falcao-Pires I., Musters R. J., Kupreishvili K., Ijsselmuiden A. J., Schalkwijk C. G., Bronzwaer J. G., Diamant M., Borbely A., van der Velden J., Stienen G. J. M., Laarman G. J., Niessen H. W., Paulus W. J.
Dátum:	2008
ISSN:	0009-7322
Tárgyszavak:	Orvostudományok Elméleti orvostudományok levél
Megjelenés:	Circulation. - 117 (2008), p. e484. -
További szerzők:	Hamdani, Nazha Handoko, Martin Louis Falcao-Pires, Ines Musters, René J. Kupreishvili, Koba Ijsselmuiden, Alexander J. J. Schalkwijk, Casper G. Bronzwaer, Jean G. F. Diamant, Michaela Borbély Attila (1978-) (kardiológus) Velden, Jolanda, van der Stienen, Ger J. M. Laarman, Gerrit J. Niessen, Hans W. M. Paulus, Walter J.
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001-es BibID:	BIBFORM005642
Első szerző:	Heerebeek, Loek, van
Cím:	Diastolic stiffness of the failing diabetic heart : importance of fibrosis, advanced glycation end products, and myocyte resting tension / van Heerebeek, L., Hamdani, N., Handoko, M. L., Falcao-Pires, I., Musters, R. J., Kupreishvili, K., Ijsselmuiden, A. J. J., Schalkwijk, C. G., Bronzwaer, J. G. F., Diamant, M., Borbely, A., van der Velden, J., Stienen, G. J. M., Laarman, G. J., Niessen, H. W. M., Paulus, W. J.
Dátum:	2008
ISSN:	1524-4539 (Electronic)
Megjegyzések:	Excessive diastolic left ventricular stiffness is an important contributor to heart failure in patients with diabetes mellitus. Diabetes is presumed to increase stiffness through myocardial deposition of collagen and advanced glycation end products (AGEs). Cardiomyocyte resting tension also elevates stiffness, especially in heart failure with normal left ventricular ejection fraction (LVEF). The contribution to diastolic stiffness of fibrosis, AGEs, and cardiomyocyte resting tension was assessed in diabetic heart failure patients with normal or reduced LVEF. METHODS AND RESULTS: Left ventricular endomyocardial biopsy samples were procured in 28 patients with normal LVEF and 36 patients with reduced LVEF, all without coronary artery disease. Sixteen patients with normal LVEF and 10 with reduced LVEF had diabetes mellitus. Biopsy samples were used for quantification of collagen and AGEs and for isolation of cardiomyocytes to measure resting tension. Diabetic heart failure patients had higher diastolic left ventricular stiffness irrespective of LVEF. Diabetes mellitus increased the myocardial collagen volume fraction only in patients with reduced LVEF (from 14.6+/-1.0% to 22.4+/-2.2%, P<0.001) and increased cardiomyocyte resting tension only in patients with normal LVEF (from 5.1+/-0.7 to 8.5+/-0.9 kN/m2, P=0.006). Diabetes increased myocardial AGE deposition in patients with reduced LVEF (from 8.8+/-2.5 to 24.1+/-3.8 score/mm2; P=0.005) and less so in patients with normal LVEF (from 8.2+/-2.5 to 15.7+/-2.7 score/mm2, P=NS). CONCLUSIONS: Mechanisms responsible for the increased diastolic stiffness of the diabetic heart differ in heart failure with reduced and normal LVEF: Fibrosis and AGEs are more important when LVEF is reduced, whereas cardiomyocyte resting tension is more important when LVEF is normal.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban Case-Control Studies Diabetes Complications/ physiopathology Diabetes Mellitus/physiopathology Diastole Female Fibrosis Glycosylation End Products, Advanced Heart Failure/etiology/ pathology Heart Ventricles/pathology Humans Male Middle Aged Muscle Tonus Myocytes, Cardiac/ physiology Stroke Volume
Megjelenés:	Circulation. - 117 : 1 (2008), p. 43-51. -
További szerzők:	Hamdani, Nazha Handoko, Martin Louis Falcao-Pires, Ines Musters, René J. Kupreishvili, Koba Ijsselmuiden, Alexander J. J. Schalkwijk, Casper G. Bronzwaer, Jean G. F. Diamant, Michaela Borbély Attila (1978-) (kardiológus) Velden, Jolanda, van der Stienen, Ger J. M. Laarman, Gerrit J. Niessen, Hans W. M. Paulus, Walter J.
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001-es BibID:	BIBFORM003763
Első szerző:	Paulus, Walter J.
Cím:	How to diagnose diastolic heart failure : a consensus statement on the diagnosis of heart failure with normal left ventricular ejection fraction by the Heart Failure and Echocardiography Associations of the European Society of Cardiology / Paulus, W. J., Tschope, C., Sanderson, J. E., Rusconi, C., Flachskampf, F. A., Rademakers, F. E., Marino, P., Smiseth, O. A., De Keulenaer, G., Leite-Moreira, A. F., Borbely, A., Edes, I., Handoko, M. L., Heymans, S., Pezzali, N., Pieske, B., Dickstein, K., Fraser, A. G., Brutsaert, D. L.
Dátum:	2007
Megjegyzések:	Diastolic heart failure (DHF) currently accounts for more than 50% of all heart failure patients. DHF is also referred to as heart failure with normal left ventricular (LV) ejection fraction (HFNEF) to indicate that HFNEF could be a precursor of heart failure with reduced LVEF. Because of improved cardiac imaging and because of widespread clinical use of plasma levels of natriuretic peptides, diagnostic criteria for HFNEF needed to be updated. The diagnosis of HFNEF requires the following conditions to be satisfied: (i) signs or symptoms of heart failure; (ii) normal or mildly abnormal systolic LV function; (iii) evidence of diastolic LV dysfunction. Normal or mildly abnormal systolic LV function implies both an LVEF > 50% and an LV end-diastolic volume index (LVEDVI) <97 mL/m(2). Diagnostic evidence of diastolic LV dysfunction can be obtained invasively (LV end-diastolic pressure >16 mmHg or mean pulmonary capillary wedge pressure >12 mmHg) or non-invasively by tissue Doppler (TD) (E/E' > 15). If TD yields an E/E' ratio suggestive of diastolic LV dysfunction (15 > E/E' > 8), additional non-invasive investigations are required for diagnostic evidence of diastolic LV dysfunction. These can consist of blood flow Doppler of mitral valve or pulmonary veins, echo measures of LV mass index or left atrial volume index, electrocardiographic evidence of atrial fibrillation, or plasma levels of natriuretic peptides. If plasma levels of natriuretic peptides are elevated, diagnostic evidence of diastolic LV dysfunction also requires additional non-invasive investigations such as TD, blood flow Doppler of mitral valve or pulmonary veins, echo measures of LV mass index or left atrial volume index, or electrocardiographic evidence of atrial fibrillation. A similar strategy with focus on a high negative predictive value of successive investigations is proposed for the exclusion of HFNEF in patients with breathlessness and no signs of congestion. The updated strategies for the diagnosis and exclusion of HFNEF are useful not only for individual patient management but also for patient recruitment in future clinical trials exploring therapies for HFNEF
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban Biological Markers blood Consensus diagnosis Diagnosis,Differential Diastole Echocardiography Echocardiography,Doppler Heart Failure Humans methods Natriuretic Peptides physiology Stroke Volume therapy ultrasonography
Megjelenés:	European Heart Journal. - 28 : 20 (2007), p. 2539-2550. -
További szerzők:	Tschöpe, Carsten Sanderson, John E. Rusconi, Cesare Flachskampf, Frank A. Rademakers, Frank E. Marino, Paolo Smiseth, Otto A. De Keulenaer, Gilles Leite-Moreira, Adelino F. Borbély Attila (1978-) (kardiológus) Édes István (1952-) (kardiológus) Handoko, Martin Louis Heymans, Stephane Pezzali, Natalia Pieske, Burkert Dickstein, Kenneth Fraser, Alan G. Brutsaert, Dirk L.
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