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Cazalbou S, Naccache L, Sourdet S, Cariou E, Fournier P, Nourhashemi F, Balardy L, Toulza O, Lairez O, Steinmeyer Z. Frailty in Older Patients with Transthyretin Cardiac Amyloidosis. J Clin Med 2023; 12:7507. [PMID: 38137576 PMCID: PMC10743850 DOI: 10.3390/jcm12247507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/22/2023] [Accepted: 11/30/2023] [Indexed: 12/24/2023] Open
Abstract
Background-Transthyretin cardiac amyloidosis (ATTR-CA) prevalence increases with age. The interplay between frailty and heart failure has been increasingly recognized. The objective of this study is to compare clinical, biological, and transthoracic echocardiography (TTE) characteristics of older ATTR-CA patients according to the G8 frailty screening tool. Methods-Patients over 75 years old with a confirmed diagnosis of ATTR-CA were included between January 2020 and April 2021. All patients underwent a routine blood test, TTE, and a functional assessment with a six-minute walking distance test (6MWD) or cardiopulmonary exercise testing (CPET), and the G8 score was calculated. Results-Fifty-two patients were included. Thirty-nine (75%) patients were frail and their mean NYHA stage was more severe (2.2 vs. 1.7; p = 0.004); 62% of them had a Gilmore stage of 2 or 3 (p = 0.05). Global left ventricular strain (GLS) was lower (-11.7% vs. -14.9%; p = 0.014) and the interventricular septum was thicker (18 ± 2 mm vs. 17 ± 2 mm; p = 0.033) in frail patients. There were no significant differences according to functional tests. Conclusion-The majority of older patients with ATTR-CA are frail according to the G8 score. They are more symptomatic and have an increased cardiac involvement and a poorer prognosis, requiring more personalized cardiac management.
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Affiliation(s)
- Stéphanie Cazalbou
- Department of Cardiology, University Hospital of Toulouse, 31400 Toulouse, France; (S.C.); (E.C.); (P.F.)
- Cardiac Imaging Center, University Hospital of Toulouse, 31059 Toulouse, France
| | - Louise Naccache
- Geriatrics Department, Internal Medicine and Cardiogeriatry Unit, Toulouse University Hospital, 31059 Toulouse, France; (L.N.); (S.S.); (F.N.); (L.B.); (O.T.); (Z.S.)
| | - Sandrine Sourdet
- Geriatrics Department, Internal Medicine and Cardiogeriatry Unit, Toulouse University Hospital, 31059 Toulouse, France; (L.N.); (S.S.); (F.N.); (L.B.); (O.T.); (Z.S.)
| | - Eve Cariou
- Department of Cardiology, University Hospital of Toulouse, 31400 Toulouse, France; (S.C.); (E.C.); (P.F.)
- Cardiac Imaging Center, University Hospital of Toulouse, 31059 Toulouse, France
| | - Pauline Fournier
- Department of Cardiology, University Hospital of Toulouse, 31400 Toulouse, France; (S.C.); (E.C.); (P.F.)
- Cardiac Imaging Center, University Hospital of Toulouse, 31059 Toulouse, France
| | - Fati Nourhashemi
- Geriatrics Department, Internal Medicine and Cardiogeriatry Unit, Toulouse University Hospital, 31059 Toulouse, France; (L.N.); (S.S.); (F.N.); (L.B.); (O.T.); (Z.S.)
- French National Institute of Health and Medical Research, Toulouse III Paul Sabatier University, 31062 Toulouse, France
- Medical School of Medicine, Toulouse III Paul Sabatier University, 31062 Toulouse, France
| | - Laurent Balardy
- Geriatrics Department, Internal Medicine and Cardiogeriatry Unit, Toulouse University Hospital, 31059 Toulouse, France; (L.N.); (S.S.); (F.N.); (L.B.); (O.T.); (Z.S.)
- French National Institute of Health and Medical Research, Toulouse III Paul Sabatier University, 31062 Toulouse, France
| | - Olivier Toulza
- Geriatrics Department, Internal Medicine and Cardiogeriatry Unit, Toulouse University Hospital, 31059 Toulouse, France; (L.N.); (S.S.); (F.N.); (L.B.); (O.T.); (Z.S.)
| | - Olivier Lairez
- Department of Cardiology, University Hospital of Toulouse, 31400 Toulouse, France; (S.C.); (E.C.); (P.F.)
- Cardiac Imaging Center, University Hospital of Toulouse, 31059 Toulouse, France
- Medical School of Medicine, Toulouse III Paul Sabatier University, 31062 Toulouse, France
- Department of Nuclear Medicine, University Hospital of Toulouse, 31059 Toulouse, France
| | - Zara Steinmeyer
- Geriatrics Department, Internal Medicine and Cardiogeriatry Unit, Toulouse University Hospital, 31059 Toulouse, France; (L.N.); (S.S.); (F.N.); (L.B.); (O.T.); (Z.S.)
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Garcia Brás P, Gonçalves AV, Reis JF, Moreira RI, Pereira-da-Silva T, Rio P, Timóteo AT, Silva S, Soares RM, Ferreira RC. Age Differences in Cardiopulmonary Exercise Testing Parameters in Heart Failure with Reduced Ejection Fraction. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1685. [PMID: 37763804 PMCID: PMC10535443 DOI: 10.3390/medicina59091685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/09/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023]
Abstract
Background and Objectives: Cardiopulmonary exercise testing (CPET) is a cornerstone of risk stratification in heart failure with reduced ejection fraction (HFrEF). However, there is a paucity of evidence on its predictive power in older patients. The aim of this study was to evaluate the prognostic power of current heart transplantation (HTx) listing criteria in HFrEF stratified according to age groups. Materials and Methods: Consecutive patients with HFrEF undergoing CPET between 2009 and 2018 were followed-up for cardiac death and urgent HTx. Results: CPET was performed in 458 patients with HFrEF. The composite endpoint occurred in 16.8% of patients ≤50 years vs. 14.1% of patients ≥50 years in a 36-month follow-up. Peak VO2 (pVO2), VE/VCO2 slope and percentage of predicted pVO2 were strong independent predictors of outcomes. The International Society for Heart and Lung Transplantation thresholds of pVO2 ≤ 12 mL/kg/min (≤14 if intolerant to β-blockers), VE/VCO2 slope > 35 and percentage of predicted pVO2 ≤ 50% presented a higher overall diagnostic effectiveness in younger patients (≤50 years). Specific thresholds for each age subgroup outperformed the traditional cut-offs. Conclusions: Personalized age-specific thresholds may contribute to an accurate risk stratification in HFrEF. Further studies are needed to address the gap in evidence between younger and older patients.
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Affiliation(s)
- Pedro Garcia Brás
- Cardiology Department, Santa Marta Hospital, Central Lisbon Hospital University Center, 1169-024 Lisbon, Portugal
| | - António Valentim Gonçalves
- Cardiology Department, Santa Marta Hospital, Central Lisbon Hospital University Center, 1169-024 Lisbon, Portugal
| | - João Ferreira Reis
- Cardiology Department, Santa Marta Hospital, Central Lisbon Hospital University Center, 1169-024 Lisbon, Portugal
| | - Rita Ilhão Moreira
- Cardiology Department, Santa Marta Hospital, Central Lisbon Hospital University Center, 1169-024 Lisbon, Portugal
| | - Tiago Pereira-da-Silva
- Cardiology Department, Santa Marta Hospital, Central Lisbon Hospital University Center, 1169-024 Lisbon, Portugal
| | - Pedro Rio
- Cardiology Department, Santa Marta Hospital, Central Lisbon Hospital University Center, 1169-024 Lisbon, Portugal
| | - Ana Teresa Timóteo
- Cardiology Department, Santa Marta Hospital, Central Lisbon Hospital University Center, 1169-024 Lisbon, Portugal
- NOVA Medical School, Faculdade de Ciências Médicas (NMS|FCM), 1169-056 Lisbon, Portugal
| | - Sofia Silva
- Cardiology Department, Santa Marta Hospital, Central Lisbon Hospital University Center, 1169-024 Lisbon, Portugal
| | - Rui M. Soares
- Cardiology Department, Santa Marta Hospital, Central Lisbon Hospital University Center, 1169-024 Lisbon, Portugal
| | - Rui Cruz Ferreira
- Cardiology Department, Santa Marta Hospital, Central Lisbon Hospital University Center, 1169-024 Lisbon, Portugal
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Jones NR, Roalfe AK, Adoki I, Hobbs FDR, Taylor CJ. Survival of patients with chronic heart failure in the community: a systematic review and meta-analysis. Eur J Heart Fail 2019; 21:1306-1325. [PMID: 31523902 PMCID: PMC6919428 DOI: 10.1002/ejhf.1594] [Citation(s) in RCA: 252] [Impact Index Per Article: 50.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/25/2019] [Accepted: 07/26/2019] [Indexed: 12/25/2022] Open
Abstract
Aim To provide reliable survival estimates for people with chronic heart failure and explain variation in survival by key factors including age at diagnosis, left ventricular ejection fraction, decade of diagnosis, and study setting. Methods and results We searched in relevant databases from inception to August 2018 for non‐interventional studies reporting survival rates for patients with chronic or stable heart failure in any ambulatory setting. Across the 60 included studies, there was survival data for 1.5 million people with heart failure. In our random effects meta‐analyses the pooled survival rates at 1 month, 1, 2, 5 and 10 years were 95.7% (95% confidence interval 94.3–96.9), 86.5% (85.4–87.6), 72.6% (67.0–76.6), 56.7% (54.0–59.4) and 34.9% (24.0–46.8), respectively. The 5‐year survival rates improved between 1970–1979 and 2000–2009 across healthcare settings, from 29.1% (25.5–32.7) to 59.7% (54.7–64.6). Increasing age at diagnosis was significantly associated with a reduced survival time. Mortality was lowest in studies conducted in secondary care, where there were higher reported prescribing rates of key heart failure medications. There was significant heterogeneity among the included studies in terms of heart failure diagnostic criteria, participant co‐morbidities, and treatment rates. Conclusion These results can inform health policy and individual patient advanced care planning. Mortality associated with chronic heart failure remains high despite steady improvements in survival. There remains significant scope to improve prognosis through greater implementation of evidence‐based treatments. Further research exploring the barriers and facilitators to treatment is recommended.
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Affiliation(s)
- Nicholas R Jones
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Andrea K Roalfe
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Ibiye Adoki
- Foundation Training Programme, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK
| | - F D Richard Hobbs
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Clare J Taylor
- Foundation Training Programme, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK
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Corrà U, Agostoni PG, Anker SD, Coats AJS, Crespo Leiro MG, de Boer RA, Harjola VP, Hill L, Lainscak M, Lund LH, Metra M, Ponikowski P, Riley J, Seferović PM, Piepoli MF. Role of cardiopulmonary exercise testing in clinical stratification in heart failure. A position paper from the Committee on Exercise Physiology and Training of the Heart Failure Association of the European Society of Cardiology. Eur J Heart Fail 2017; 20:3-15. [PMID: 28925073 DOI: 10.1002/ejhf.979] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/25/2017] [Accepted: 08/01/2017] [Indexed: 12/20/2022] Open
Abstract
Traditionally, the main indication for cardiopulmonary exercise testing (CPET) in heart failure (HF) was for the selection of candidates to heart transplantation: CPET was mainly performed in middle-aged male patients with HF and reduced left ventricular ejection fraction. Today, CPET is used in broader patients' populations, including women, elderly, patients with co-morbidities, those with preserved ejection fraction, or left ventricular assistance device recipients, i.e. individuals with different responses to incremental exercise and markedly different prognosis. Moreover, the diagnostic and prognostic utility of symptom-limited CPET parameters derived from submaximal tests is more and more considered, since many patients are unable to achieve maximal aerobic power. Repeated tests are also being used for risk stratification and evaluation of intervention, so that these data are now available. Finally, patients, physicians and healthcare decision makers are increasingly considering how treatments might impact morbidity and quality of life rather than focusing more exclusively on hard endpoints (such as mortality) as was often the case in the past. Innovative prognostic flowcharts, with CPET at their core, that help optimize risk stratification and the selection of management options in HF patients, have been developed.
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Affiliation(s)
- Ugo Corrà
- Cardiology Division, Istituti Clinici Scientifici Maugeri, Centro Medico di Riabilitazione di Veruno, Veruno, Novara, Italy
| | - Pier Giuseppe Agostoni
- Cardiology Center of Monzino, IRCCS, Milan, Italy; and Cardiovascular Section, Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Stefan D Anker
- Division of Cardiology and Metabolism - Heart Failure, Cachexia & Sarcopenia, Department of Cardiology (CVK) and Berlin-Brandenburg Center for Regenerative Therapies (BCRT), at Charité University Medicine, Berlin; Department of Cardiology and Pneumology, University Medicine Göttingen (UMG), Göttingen, Germany; German Center for Cardiovascular Research (DZHK), Berlin, Germany
| | | | - Maria G Crespo Leiro
- Heart Failure and Heart Transplant Unit, Complejo Hospitalario Universitario A Coruña (CHUAC), CIBERCV, La Coruña, Spain
| | | | - Veli-Pekka Harjola
- Emergency Medicine, University of Helsinki, Department of Emergency Medicine and Services, Helsinki University Hospital, Helsinki, Finland
| | - Loreena Hill
- School of Nursing and Midwifery, Queen's University, Belfast, UK
| | - Mitja Lainscak
- Faculty of Medicine, University of Ljubljana; and Center for Heart Failure, General Hospital Murska Sobota, Slovenia
| | - Lars H Lund
- Department of Medicine, Karolinska Institutet; and Heart and Vascular Theme, Karolinska University Hospital, Stockholm, Sweden
| | | | | | - Jillian Riley
- National Heart and Lung Institute, Imperial College, London, UK
| | - Petar M Seferović
- Internal Medicine, University of Belgrade School of Medicine, Belgrade, Serbia
| | - Massimo F Piepoli
- Heart Failure Unit, Cardiac Department, Guglielmo da Saliceto Hospital, Piacenza, Italy
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Statement on cardiopulmonary exercise testing in chronic heart failure due to left ventricular dysfunction: recommendations for performance and interpretation Part III: Interpretation of cardiopulmonary exercise testing in chronic heart failure and future applications: Task Force of the Italian Working Group on Cardiac Rehabilitation and Prevention (Gruppo Italiano di Cardiologia Riabilitativa e Prevenzione, GICR), endorsed by Working Group on Cardiac Rehabilitation and Exercise Physiology of the European Society of Cardiology. ACTA ACUST UNITED AC 2016; 13:485-94. [PMID: 16874136 DOI: 10.1097/01.hjr.0000201518.43837.bc] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Optimal use of cardiopulmonary exercise testing (CPET) in clinical practice and chronic heart failure (CHF) requires appropriate data presentation and a flexible interpretative strategy. The greatest potential impact on the decision-making process may rest not on the value of any individual measurement, although some are obviously more important than others, but rather on their integrative use. Such an integrative approach relies on interrelationship, trending phenomena and patterns of key gas exchange variable responses. An multiparametric approach will be discussed in different clinical applications, for exercise prescription and monitoring, functional evaluation of drug therapy or cardiac resynchronisation therapy efficacy, and risk stratification. The role of CPET in the daily clinical decision-making process will be underscored. Future indications of CPET will be addressed, suggesting and promoting an extended candidacy either to all CHF patients, including those at high risk or most vulnerable, such as female, elderly patients, and patients with implantable cardioverter defibrillator or in every clinical setting where objective definition of exercise capacity provides implications for medical, surgical, and social decision making.
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Alba AC, Adamson MW, MacIsaac J, Lalonde SD, Chan WS, Delgado DH, Ross HJ. The Added Value of Exercise Variables in Heart Failure Prognosis. J Card Fail 2016; 22:492-7. [DOI: 10.1016/j.cardfail.2016.01.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 01/02/2016] [Accepted: 01/27/2016] [Indexed: 01/24/2023]
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Hao Y, Tsuruda T, Sekita-Hatakeyama Y, Kurogi S, Kubo K, Sakamoto S, Nakamura M, Udagawa N, Sekimoto T, Hatakeyama K, Chosa E, Asada Y, Kitamura K. Cardiac hypertrophy is exacerbated in aged mice lacking the osteoprotegerin gene. Cardiovasc Res 2016; 110:62-72. [PMID: 26825553 DOI: 10.1093/cvr/cvw025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 01/22/2016] [Indexed: 02/06/2023] Open
Abstract
AIMS Osteoprotegerin (OPG) may play a role in the progression of cardiac hypertrophy and heart failure. However, its pathophysiological role in changes in cardiac structure and function with ageing remains to be elucidated. METHODS AND RESULTS We conducted experiments using 2.5- and 12-month-old OPG(-/-) mice and age-matched wild-type (WT) mice and compared the morphology and function of the left ventricle (LV). Both 2.5- and 12-month-old OPG(-/-) mice showed a higher systolic blood pressure and a greater heart weight/body weight ratio than age-matched WT mice. Twelve-month-old OPG(-/-) mice had a significantly larger LV chamber and reduced wall thickness compared with age-matched WT mice, and contractile function was decreased. The morphological differences were accompanied by an increase in the number of apoptotic cells and activation of tumour necrosis factor-related apoptosis-inducing ligand (TRAIL) in the LV of 12-month-old OPG(-/-) mice. Correspondingly, OPG small interfering RNA induced the expressions of TRAIL and cleaved caspase-3 in cultured cardiac myocytes. In addition, these mice revealed a decrease in interstitial fibrosis, activation of matrix metalloproteinase (MMP)-2 and tissue inhibitors of MMP-1 and -2, and inactivation of procollagen α1 synthesis. Moreover, intraperitoneal administration of recombinant OPG to either 2.5- or 12-month-old OPG(-/-) mice for 28 days led to partial improvement of LV structure and function without affecting systolic blood pressure. CONCLUSION These results suggest that OPG plays a role in preserving myocardial structure and function with ageing through a reduction in apoptosis and preservation of the matrix structure. In addition, this appears to be independent of effects on the vasculature.
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Affiliation(s)
- Yilin Hao
- Department of Internal Medicine, Circulatory and Body Fluid Regulation, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Toshihiro Tsuruda
- Department of Internal Medicine, Circulatory and Body Fluid Regulation, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Yoko Sekita-Hatakeyama
- Department of Internal Medicine, Circulatory and Body Fluid Regulation, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Syuji Kurogi
- Division of Orthopaedic Surgery, Department of Medicine of Sensory and Motor Organs, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Keishi Kubo
- Department of Internal Medicine, Circulatory and Body Fluid Regulation, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Sumiharu Sakamoto
- Department of Internal Medicine, Circulatory and Body Fluid Regulation, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Midori Nakamura
- Department of Biochemistry, Matsumoto Dental University, Nagano 399-0781, Japan
| | - Nobuyuki Udagawa
- Department of Biochemistry, Matsumoto Dental University, Nagano 399-0781, Japan
| | - Tomohisa Sekimoto
- Division of Orthopaedic Surgery, Department of Medicine of Sensory and Motor Organs, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Kinta Hatakeyama
- Department of Diagnostic Pathology, Nara Medical University, Nara 634-0813, Japan
| | - Etsuo Chosa
- Division of Orthopaedic Surgery, Department of Medicine of Sensory and Motor Organs, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Yujiro Asada
- Department of Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Kazuo Kitamura
- Department of Internal Medicine, Circulatory and Body Fluid Regulation, University of Miyazaki, Miyazaki 889-1692, Japan
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Hargraves TL, Bennett AA, Brien JAE. Developing an Outpatient Heart Failure Pharmacy Service. JOURNAL OF PHARMACY PRACTICE AND RESEARCH 2015. [DOI: 10.1002/j.2055-2335.2008.tb00812.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Tracey-Lea Hargraves
- Pharmacy Department; St Vincent's Hospital
- Faculty of Pharmacy; University of Sydney
| | - Alexandra A Bennett
- Pharmacy Department; St Vincent's Hospital
- Faculty of Pharmacy; University of Sydney
| | - Jo-anne E Brien
- Pharmacy Department; St Vincent's Hospital
- Faculty of Pharmacy; University of Sydney
- Faculty of Medicine; University of New South Wales; Kensington New South Wales
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Ma G, Xu M, Gao W, Li Z, Li W, Chen B, Feng J, Wang H, Ma W, Chen H, Shen A, Feng X, Zhang Y. Left ventricular filling pressure assessed by exercise TDI was correlated with early HFNEF in patients with non-obstructive hypertrophic cardiomyopathy. BMC Cardiovasc Disord 2014; 14:194. [PMID: 25524147 PMCID: PMC4289563 DOI: 10.1186/1471-2261-14-194] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 06/23/2014] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Hypertrophic cardiomyopathy (HCM) patients are more susceptible to suffer from heart failure with normal ejection fraction (HFNEF). Therefore, it is critical to evaluate the relationship between left ventricular filling pressure (LVFP) and HFNEF, even if a large proportion of HCM patients have normal LVFP at rest. The objective was to assess the correlation between exercise tissue Doppler imaging (TDI) and early HFNEF in HCM patients by treadmill exercise echocardiography combined with cardiopulmonary exercise test (CPET). METHOD Twenty-seven non-obstructive HCM patients and 31 age- and gender-matched healthy volunteers were enrolled in this study. All subjects underwent treadmill exercise echocardiography combined with CPET. N-terminal pro-brain natriuretic peptide (NT-proBNP) levels were analyzed before and after exercise. RESULT Five HCM patients had normal LVFP at rest and increased after exercise. For this subgroup, the relationship between minute ventilation and carbon dioxide production (VE/VCO2 slope) and NT-proBNP levels were higher compared with controls and the subgroup with normal resting and stress LVFP, but was similar to the subgroup with elevated LVFP both at rest and after exercise. CONCLUSION Elevated LVFP after exercise suggested the occurrence of early HFNEF in patients with non-obstructive HCM.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Xinheng Feng
- Department of Cardiology, Peking University Third Hospital, 100191 Beijing, China.
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Rodriguez-Pascual C, Paredes-Galan E, Vilches-Moraga A, Ferrero-Martinez AI, Torrente-Carballido M, Rodriguez-Artalejo F. Comprehensive Geriatric Assessment and 2-Year Mortality in Elderly Patients Hospitalized for Heart Failure. Circ Cardiovasc Qual Outcomes 2014; 7:251-8. [DOI: 10.1161/circoutcomes.113.000551] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Carlos Rodriguez-Pascual
- From the Departments of Geriatric Medicine (C.R.-P., A.V.-M., A.I.F.-M., M.T.-C.) and Cardiology (E.P.-G.), Hospital Meixoeiro, Complejo Hospitalario Universitario de Vigo, Vigo, Spain; Instituto de Investigación Biomédica de Vigo (IBIV), Vigo, Spain (C.R.-P.); Department of Medicine, School of Medicine, Universidad de Santiago de Compostela, Santiago de Compostela, Spain (C.R.-P.); and Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPaz,
| | - Emilio Paredes-Galan
- From the Departments of Geriatric Medicine (C.R.-P., A.V.-M., A.I.F.-M., M.T.-C.) and Cardiology (E.P.-G.), Hospital Meixoeiro, Complejo Hospitalario Universitario de Vigo, Vigo, Spain; Instituto de Investigación Biomédica de Vigo (IBIV), Vigo, Spain (C.R.-P.); Department of Medicine, School of Medicine, Universidad de Santiago de Compostela, Santiago de Compostela, Spain (C.R.-P.); and Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPaz,
| | - Arturo Vilches-Moraga
- From the Departments of Geriatric Medicine (C.R.-P., A.V.-M., A.I.F.-M., M.T.-C.) and Cardiology (E.P.-G.), Hospital Meixoeiro, Complejo Hospitalario Universitario de Vigo, Vigo, Spain; Instituto de Investigación Biomédica de Vigo (IBIV), Vigo, Spain (C.R.-P.); Department of Medicine, School of Medicine, Universidad de Santiago de Compostela, Santiago de Compostela, Spain (C.R.-P.); and Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPaz,
| | - Ana Isabel Ferrero-Martinez
- From the Departments of Geriatric Medicine (C.R.-P., A.V.-M., A.I.F.-M., M.T.-C.) and Cardiology (E.P.-G.), Hospital Meixoeiro, Complejo Hospitalario Universitario de Vigo, Vigo, Spain; Instituto de Investigación Biomédica de Vigo (IBIV), Vigo, Spain (C.R.-P.); Department of Medicine, School of Medicine, Universidad de Santiago de Compostela, Santiago de Compostela, Spain (C.R.-P.); and Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPaz,
| | - Marta Torrente-Carballido
- From the Departments of Geriatric Medicine (C.R.-P., A.V.-M., A.I.F.-M., M.T.-C.) and Cardiology (E.P.-G.), Hospital Meixoeiro, Complejo Hospitalario Universitario de Vigo, Vigo, Spain; Instituto de Investigación Biomédica de Vigo (IBIV), Vigo, Spain (C.R.-P.); Department of Medicine, School of Medicine, Universidad de Santiago de Compostela, Santiago de Compostela, Spain (C.R.-P.); and Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPaz,
| | - Fernando Rodriguez-Artalejo
- From the Departments of Geriatric Medicine (C.R.-P., A.V.-M., A.I.F.-M., M.T.-C.) and Cardiology (E.P.-G.), Hospital Meixoeiro, Complejo Hospitalario Universitario de Vigo, Vigo, Spain; Instituto de Investigación Biomédica de Vigo (IBIV), Vigo, Spain (C.R.-P.); Department of Medicine, School of Medicine, Universidad de Santiago de Compostela, Santiago de Compostela, Spain (C.R.-P.); and Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPaz,
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Al Suwaidi J, Asaad N, Al-Qahtani A, El-Menyar A, Al-Mulla AW, Singh R, AlBinali HA. Effect of Age on Outcome on Patients Hospitalized With Heart Failure: From a 20-Year Registry in a Middle-Eastern Country (1991-2010). ACTA ACUST UNITED AC 2012; 18:320-6. [DOI: 10.1111/j.1751-7133.2012.00290.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Manisty CH, Al-Hussaini A, Unsworth B, Baruah R, Pabari PA, Mayet J, Hughes AD, Whinnett ZI, Francis DP. The acute effects of changes to AV delay on BP and stroke volume: potential implications for design of pacemaker optimization protocols. Circ Arrhythm Electrophysiol 2011; 5:122-30. [PMID: 22095639 DOI: 10.1161/circep.111.964205] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The AV delay optimization of biventricular pacemakers (cardiac resynchronization therapy) may maximize hemodynamic benefit but consumes specialist time to conduct echocardiographically. Noninvasive BP monitoring is a potentially automatable alternative, but it is unknown whether it gives the same information and similar precision (signal/noise ratio). Moreover, the immediate BP increment on optimization has been reported to decay away: it is unclear whether this is the result of an (undesirable) decrease in stroke volume or a (desirable) compensatory relief of peripheral vasoconstriction. METHODS AND RESULTS To discriminate between these alternative mechanisms, we measured simultaneous beat-to-beat stroke volume (flow) using Doppler echocardiography, and BP using finger photoplethysmography, during and after AV delay changes from 40 to 120 ms in 19 subjects with cardiac pacemakers. BP and stroke volume both increased immediately (P<0.001, within 1 heartbeat). BP showed a clear decline a few seconds later (average rate, -0.65 mm Hg/beat; r=0.95 [95% CI, 0.86-0.98]); in contrast, stroke volume did not decline (P=0.87). The immediate BP increment correlated strongly with the stroke volume increment (r=0.74, P<0.001). The signal/noise ratio was 3-fold better for BP than stroke volume (6.8±3.5 versus 2.3±1.4; P<0.001). CONCLUSIONS Improving AV delay immediately increases BP, but the effect begins to decay within a few seconds. Reassuringly, this is because of compensatory vasodilatation rather than reduction in cardiac function. Pacemaker optimization will never be reliable unless there is an adequate signal/noise ratio. Using BP rather than Doppler minimizes noise. The early phase (before vascular compensation) has the richest signal lode.
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Affiliation(s)
- Charlotte H Manisty
- International Centre for Circulatory Health, Imperial College London, London, UK.
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Malfatto G, Branzi G, Giglio A, Ciambellotti F, Villani A, Parati G, Facchini M. Diastolic dysfunction and abnormal exercise ventilation predict adverse outcome in elderly patients with chronic systolic heart failure. Eur J Prev Cardiol 2011; 19:396-403. [PMID: 21450576 DOI: 10.1177/1741826711401047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Heart failure is increasing in the elderly and represents a socioeconomic burden requiring the correct management for which risk stratification is mandatory. Among younger patients, echocardiogram and cardiopulmonary exercise test are useful in prognostic stratification. Few studies have analyzed the utility of these tests in elderly patients. METHODS We report on 90 patients over 70 years old, on whom cardiopulmonary tests and echocardiograms were performed between 1998 and 2006 (67 M, 23 F; 75 ± 3 years; ejection fraction (EF) 30 ± 6%; NYHA 2.1 ± 0.8; 60% ischemic; therapy according to international guidelines). Echocardiographic variables were (1) left ventricular ejection fraction (EF); (2) severity of diastolic dysfunction on multiparametric examination of Doppler and TDI parameters; (3) severity of functional mitral regurgitation. Cardiopulmonary variables were (1) peak VO(2); (2) peak O(2) pulse; (3) peak respiratory quotient (RQ); (4) VE/VCO(2) slope. Endpoint considered was mortality of any cause at three-years follow-up. RESULTS Mortality was 21%. At univariate analysis, survivors (n = 71) and deceased (n = 19) were similar for age, NYHA class, peakVO(2) and RQ; they differed for EF, severity of mitral regurgitation, severity of diastolic dysfunction, O(2) pulse and VE/VCO(2) slope. At multivariate analysis, only VE/VCO(2) slope and severe diastolic dysfunction (restrictive filling pattern) discriminated between the two groups. In particular, the association of restrictive filling pattern and VE/VCO(2) slope ≥ 45 predicted 3-year mortality with sensitivity of 84% and specificity of 88%. CONCLUSIONS Echocardiographic and cardiopulmonary data can identify high-risk elderly patients with systolic heart failure, who may need aggressive clinical management.
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Affiliation(s)
- Gabriella Malfatto
- Divisione di Cardiologia, Ospedale San Luca, Istituto Auxologico Italiano IRCCS, piazzale Brescia 20, Milan, Italy.
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Scardovi AB, De Maria R, Ferraironi A, Gatto L, Celestini A, Forte S, Parolini M, Sciarretta S, Ricci R, Guazzi M. A case for assessment of oscillatory breathing during cardiopulmonary exercise test in risk stratification of elderly patients with chronic heart failure. Int J Cardiol 2011; 155:115-9. [PMID: 21402422 DOI: 10.1016/j.ijcard.2011.02.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Accepted: 02/10/2011] [Indexed: 01/26/2023]
Abstract
UNLABELLED The prognostic value of exercise oscillatory breathing (EOB) during cardiopulmonary test (CPX) has been described in young chronic heart failure (HF) patients. We assessed the prognostic role of EOB vs other clinical and ventilatory parameters in elderly HF patients performing a maximal CPX. METHODS AND RESULTS We prospectively followed-up 370 HF outpatients ≥ 65 years after a symptom limited CPX. We tested the predictive value of clinical and ventilatory parameters for all-cause mortality and a composite of all-cause mortality and HF hospitalizations. Median age was 74 years, 51% had ischemic heart disease, 25% NYHA class III; ejection fraction was 41% [34-50]. Peak oxygen consumption (PVO(2)) was 11.9 [9.9-14] mL/kg/min, the slope of the regression line relating ventilation to CO(2) output, (VE/VCO(2) slope) was 33.9 [29.8-39.2]. EOB was found in 58% of patients. At follow-up, 84 patients died and overall 158, using a time-to-first event approach, met the composite end-point. Independent predictors of all-cause mortality were CPX EOB and the ratio of VE/VCO(2) slope to peak VO(2), hemoglobin, creatinine and body mass index. The area under the ROC curve (AUC) of the Cox multivariable model was 0.80 (95% CI 0.73 to 0.87). Independent predictors of the composite end-point were EOB, VE/VCO(2) slope, hemoglobin and HF admissions in the previous year (Model AUC 0.75) (95% CI 0.69 to 0.81). CONCLUSIONS Among elderly HF patients, EOB prevalence is higher than middle-aged cohorts. EOB and the ratio of VE/VCO(2) slope to peak VO(2) resulted the strongest ventilatory predictor of all-cause mortality, independent of ventricular function.
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Ather S, Chan W, Chillar A, Aguilar D, Pritchett AM, Ramasubbu K, Wehrens XH, Deswal A, Bozkurt B. Association of systolic blood pressure with mortality in patients with heart failure with reduced ejection fraction: a complex relationship. Am Heart J 2011; 161:567-73. [PMID: 21392613 DOI: 10.1016/j.ahj.2010.12.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Accepted: 12/06/2010] [Indexed: 12/22/2022]
Abstract
BACKGROUND In ambulatory patients with heart failure with reduced ejection fraction (HFrEF), high systolic blood pressure (SBP) is associated with better outcomes. However, it is not known whether there is a ceiling beyond which high SBP has a detrimental effect. Thus, our aim was to assess the linearity of association between SBP and mortality. METHODS We used the External Peer Review Program (EPRP) and Digitalis Investigation Group (DIG) trial databases of HFrEF patients. Linearity of association of SBP with mortality was assessed by plotting Martingale residuals against SBP. To assess the patterns of relationship of SBP with mortality, we used restricted cubic spline analysis with Cox proportional hazards model. RESULTS In patients with mild-to-moderate left ventricular systolic dysfunction (LVSD) (30% ≤ LVEF < 50%), SBP had a nonlinear association with mortality in both EPRP (n = 3,693) and DIG (n = 3,263) databases. In these patients, SBP had a significant U-shaped association with mortality in EPRP and a trend toward U-shaped relationship in DIG database. In patients with severe LVSD (LVEF <30%), SBP had a linear association with mortality in both EPRP (n = 2,906) and DIG (n = 3,537) databases, with lower SBP being associated with increased mortality. CONCLUSIONS Systolic blood pressure has a complex nonlinear association with mortality in patients with heart failure. Whereas it has a U-shaped association in patients with mild-to-moderate LVSD, it has a linear association with mortality in patients with severe LVSD. Recognition of this pattern of association of blood pressure profile may help clinicians in providing better care for their patients and help improve existing prediction models.
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Arena R, Myers J, Abella J, Pinkstaff S, Brubaker P, Kitzman DW, Peberdy MA, Bensimhon D, Chase P, Guazzi M. Cardiopulmonary exercise testing is equally prognostic in young, middle-aged and older individuals diagnosed with heart failure. Int J Cardiol 2010; 151:278-83. [PMID: 20580105 DOI: 10.1016/j.ijcard.2010.05.056] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2009] [Revised: 04/20/2010] [Accepted: 05/30/2010] [Indexed: 11/29/2022]
Abstract
BACKGROUND Previous research has demonstrated the prognostic value of cardiopulmonary exercise testing (CPX) in elderly patients with heart failure (HF). Investigations that have comprehensively examined the value of CPX across different age groups are lacking. The purpose of the present investigation was to evaluate the prognostic value of CPX in young, middle-aged and older patients with HF. METHODS A total of 1605 subjects (age: 59.2 ± 13.7 years, 78% male) underwent CPX and were subsequently tracked for major cardiac events. Ventilatory efficiency (VE/VCO(2) slope) and peak oxygen consumption (VO(2)), both absolute and percent-predicted, were determined. The prognostic value of these CPX variables was assessed in ≤ 45, 46-65 and ≥ 66 year subgroups. RESULTS The three year event rates for major cardiac events in the ≤ 45, 46-65 and ≥ 66 year subgroups were 8.8%, 6.0% and 5.7%, respectively. The VE/VCO(2) slope (Hazard ratio ≥ 1.07, p<0.001), peak VO(2) (Hazard ratio ≤ 0.87, p<0.001) and percent-predicted peak VO(2) (Hazard ratio 0 ≤ 0.98, p<0.001) were all significant prognostic markers in each age subgroup. While the VE/VCO(2) slope carried the greatest prognostic strength, peak VO(2) and percent-predicted peak VO(2) were retained in multivariate analyses (Residual Chi-Square ≥ 5.2, p<0.05). With respect to peak VO(2), the actual value was the more robust prognostic marker in the ≤ 45 and ≥ 66 year subgroups while the percent-predicted expression provided better predictive resolution in subjects who were 46-65 years old. CONCLUSIONS These results indicate that, irrespective of a patient's age at presentation, CPX provides valuable prognostic information in the HF population.
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Affiliation(s)
- Ross Arena
- Department of Physical Therapy, Virginia Commonwealth University, Richmond, Virginia 23298-0224, USA.
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Ertel D, Phatak K, Makati K, Holland M, Baig S, Kim MH, Link M, Passman R. Predictors of early mortality in patients age 80 and older receiving implantable defibrillators. PACING AND CLINICAL ELECTROPHYSIOLOGY: PACE 2010; 33:981-7. [PMID: 20230459 DOI: 10.1111/j.1540-8159.2010.02729.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND There are no upper age restrictions for implantable defibrillators (ICDs) but their benefit may be limited in patients > or = 80 years with strong competing risks of early mortality. Risk factors for early (1-year) mortality in ICD recipients > or = 80 years of age have not been established. METHODS Two-center retrospective cohort study to assess predictors of one-year mortality in ICD recipients > or = 80 years of age. RESULTS Of 2,967 ICDs implanted in the two centers from 1990-2006, 225 (7.6%) patients were > or =80 years of age and followed-up at one of the two centers. Mean age was 83.3 +/- 3.1 years and follow-up time 3.3 +/- 2.6 years. Median survival was 3.6 years (95% confidence interval 2.3-4.9). Multivariate predictors of 1-year mortality included ejection fraction (EF) < or = 20% and the absence of beta-blocker use. Actuarial 1-year mortality of ICD recipients > or = 80 with an EF < or = 20% was 38.2% versus 13.1% in patients 80+ years with an EF > 20% and 10.6% for patients < 80 years with an EF < or = 20% (P < 0.001 for both). There was no significant difference in the risk of appropriate ICD therapy between those patients 80+ years with EF above and below 20%. CONCLUSION In general, patients > or = 80 years of age who meet current indications for ICD implantation live sufficiently long to warrant device implantation based on anticipated survival alone. However, those with an EF < or = 20% have a markedly elevated 1-year mortality with no observed increase in appropriate ICD therapy, thus reducing the benefit of device implantation in this population.
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Affiliation(s)
- Drew Ertel
- Northwestern University Feinberg School of Medicine, Department of Medicine, Chicago, Illinois, USA
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Donadini MP, Squizzato A, Dentali F, Ageno W. Prognostic stratification of chronic heart failure in elderly population: are cardiopulmonary tests and BNP really valuable? Intern Emerg Med 2009; 4:353-4; author reply 355. [PMID: 19357823 DOI: 10.1007/s11739-009-0247-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2009] [Accepted: 03/18/2009] [Indexed: 11/29/2022]
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Usefulness of peak exercise oxygen consumption and the heart failure survival score to predict survival in patients >65 years of age with heart failure. Am J Cardiol 2009; 103:998-1002. [PMID: 19327430 DOI: 10.1016/j.amjcard.2008.12.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2008] [Revised: 12/01/2008] [Accepted: 12/01/2008] [Indexed: 11/22/2022]
Abstract
Peak exercise oxygen consumption (Vo(2)) and the Heart Failure (HF) Survival Score (HFSS) were developed in middle-aged patient cohorts referred for heart transplantation with HF. The prognostic value of Vo(2) in patients >65 years has not been well studied. Accordingly, the prognostic value of peak Vo(2) was evaluated in these patients with HF. A retrospective analysis of 396 patients with HF >65 years with cardiopulmonary exercise testing was performed. Peak Vo(2) and components of the HFSS (presence of coronary artery disease, left ventricular ejection fraction, heart rate, mean arterial blood pressure, presence of intraventricular conduction defects, and serum sodium) were collected. Follow-up averaged 1,038 +/- 983 days. Outcome events were defined as death, implantation of a left ventricular assist device, or urgent transplantation. Patients were divided into risk strata for peak Vo(2) and HFSS based on previous cut-off points. Survival curves were derived using Kaplan-Meier analysis and compared using log-rank analysis. Survival differed markedly by Vo(2) stratum (p <0.0001), with significantly better survival rates for the low- (>14 ml/kg/min) versus medium- (10 to 14 ml/kg/min), low- versus high- (<10 ml/kg/min), and medium- versus high-risk strata (all p <0.05). Survival also differed markedly by HFSS stratum (p <0.0001), with significantly better survival rates for the low- (> or =8.10) versus medium- (7.20 to 8.09), low- versus high- (< or =7.19), and medium- versus high-risk strata (all p <0.0001). In conclusion, peak Vo(2) and the HFSS were both excellent parameters to predict survival in patients >65 years with HF.
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Additive prognostic value of cardiopulmonary exercise testing in elderly patients with heart failure. Clin Sci (Lond) 2009; 116:415-22. [DOI: 10.1042/cs20080111] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
To date, the role of CPET (cardiopulmonary exercise testing) for risk stratification in elderly patients with HF (heart failure) with depressed or preserved ventricular function has not been evaluated. In the present study, we analysed whether CPET is useful in predicting outcome in this population. A total of 220 NYHA (New York Heart Association) class I–III patients with HF ≥70 years of age [median age, 75 years; 23% had NYHA class III; and 59% had preserved ventricular systolic function (left ventricular ejection fraction ≥40%)] performed maximal CPET (peak expiratory exchange ratio >1.00). Median peak oxygen uptake was 11.9 ml·kg−1 of body weight·min−1, median V̇E/V̇CO2 slope (slope of the minute ventilation/carbon dioxide production ratio) was 33.2 and 45% had an EVR (enhanced ventilatory response) to exercise (V̇E/V̇CO2 slope ≥34). During 19 months of follow-up, 94 patients (43%) met the combined end point of death and hospital admission for worsening HF, arrhythmias or acute coronary syndromes. By Cox multivariable analysis, a creatinine clearance of <50 ml/min {HR (hazard ratio), 1.657 [95% CI (confidence interval), 1.055–2.602]} and EVR [HR, 1.965 (95% CI, 1.195–3.231)] were the best predictors of outcome, while ventricular function had no influence on prognosis. In conclusion, in elderly patients with HF, a steeper V̇E/V̇CO2 slope provides additional information for risk stratification across the spectrum of ventricular function and identifies a high-risk population, commonly not considered in exercise testing guidelines.
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Scardovi AB, De Maria R, Celestini A, Coletta C, Aspromonte N, Perna S, Parolini M, Ricci R. Prognostic value of brain natriuretic peptide and enhanced ventilatory response to exercise in patients with chronic heart failure. Intern Emerg Med 2008; 3:331-7. [PMID: 18560771 DOI: 10.1007/s11739-008-0163-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2007] [Accepted: 05/05/2008] [Indexed: 10/21/2022]
Abstract
Whether brain natriuretic peptide (BNP), combined with a cardiopulmonary exercise test (CPx) parameters or echocardiography improves prognostic stratification in mild-to-moderate systolic heart failure (HF) is currently unclear. In 156 consecutive stable outpatients with mild to moderate HF and left ventricular ejection fraction (LVEF) <40%, we assessed the impact of BNP assay, Doppler echocardiography and CPx on survival. Median BNP plasma levels were 207 [90-520] pg/mL. Mean LVEF was 33 +/- 7%. Left bundle branch block (LBBB) was present in 52 patients (33%) and a restrictive filling pattern in 35 (22%). The slope of the relation between minute ventilation and carbon dioxide production (VE/VCO(2) slope) averaged 35 +/- 8; an enhanced ventilatory response (EVR) to exercise (VE/VCO(2) slope >35) was found in 67 patients (43%). During 759 +/- 346 days of follow-up, 24 patients died. By multivariate analysis, the strongest independent predictors of all-cause death among clinical, echocardiographic variables and BNP were LBBB and beta-blocker treatment. When CPx variables were added, the best predictors of mortality were LBBB, beta-blockade and VE/VCO(2) slope. This study highlights the value of a sequential approach, based on clinical, laboratory and functional data to identify high-risk HF patients. BNP assay might constitute a simple alternative tool for patients with an inability or with clinical contraindications to exercise, advanced physical deconditioning and unreliable CPx results. However, whenever feasible, CPx with assessment of EVR is recommended for a more accurate prediction of prognosis.
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The clinical and research applications of aerobic capacity and ventilatory efficiency in heart failure: an evidence-based review. Heart Fail Rev 2007; 13:245-69. [PMID: 17987381 DOI: 10.1007/s10741-007-9067-5] [Citation(s) in RCA: 180] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2007] [Accepted: 10/22/2007] [Indexed: 10/22/2022]
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Seow SC, Chai P, Lee YP, Chan YH, Kwok BWK, Yeo TC, Chia BL. Heart failure mortality in Southeast Asian patients with left ventricular systolic dysfunction. J Card Fail 2007; 13:476-81. [PMID: 17675062 DOI: 10.1016/j.cardfail.2007.03.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2006] [Revised: 03/13/2007] [Accepted: 03/19/2007] [Indexed: 11/16/2022]
Abstract
BACKGROUND Prognostic indicators and mortality in multiethnic Southeast Asian patients with heart failure (HF) may be different. METHODS AND RESULTS The study population comprised 225 inpatients with HF with a left ventricular ejection fraction of 40% or less who were discharged alive. Five years later, survival and causes of death were determined. Proportionally, more Malay and Indian patients were admitted compared with Chinese patients (P < .001). There were 55.6% in New York Heart Association (NYHA) class III or IV. Ischemic heart disease was the most common cause (85.8%). At 5 years, 152 patients (67.5%) had died. Angiotensin-converting enzyme inhibitors were prescribed to 79.1% of patients on discharge. Cardiovascular causes accounted for 69.7% of deaths. Predictors of mortality include female gender (P = .046), age 70 years or more (P = .017), renal impairment (P = .008), NYHA class III or IV (P = .03), and non-use of angiotensin-converting enzyme inhibitors (P = .005). On multivariate analysis, increasing age (P = .001) and renal impairment (P = .019) were independent predictors of all-cause mortality. Cardiovascular death was more likely with NYHA class III or IV (P = .004) and renal impairment (P = .012). CONCLUSION Mortality is unusually high in this group of patients despite treatment. Greater use of evidence-based therapies in HF-management programs may arrest this trend.
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Scardovi AB, Coletta C, De Maria R, Perna S, Aspromonte N, Feola M, Rosso G, Greggi M, Ceci V. The cardiopulmonary exercise test is safe and reliable in elderly patients with chronic heart failure. J Cardiovasc Med (Hagerstown) 2007; 8:608-12. [PMID: 17667032 DOI: 10.2459/01.jcm.0000281698.53983.4e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIM To assess safety and feasibility of cardiopulmonary exercise test (CPX) in elderly patients with chronic heart failure (CHF) and left ventricular dysfunction. METHODS AND RESULTS We analysed 395 cardiopulmonary exercise tests (CPXs) performed in 227 clinically stable patients with CHF [mean age 76 years, males 70%, mean New York Heart Association (NYHA) class 2.2 +/- 0.5] and impaired left ventricular function (mean ejection fraction 43 +/- 12%). Ninety-eight out of 395 CPXs (25%) were performed in patients older than 80 years. A standard bicycle exercise ramp protocol was used, with increments of 10 W/min. An expiratory exchange ratio (RER) >or= 1.05 at the peak of CPX was considered as the index of maximal exercise. Average workload was 65 +/- 23 W. No adverse reactions were observed, although one test was stopped for non-sustained ventricular tachycardia. The main reasons for stopping were exhaustion (50%), dyspnoea (30%), maximal predicted heart rate (17%), orthopaedic problems (2.5%) and significant ST segment depression (0.5%). In the overall cohort, 80% of patients achieved an RER >or= 1.05 and, in 56% of them, the RER was >or= 1.15. The anaerobic threshold (AT) was detectable in 80% of CPXs, and mean oxygen consumption (VO2) at AT was 9 +/- 6 ml/kg per min, whereas mean peak VO2 was 11 +/- 3 ml/kg per min. In the cohort of patients aged > 80 years, 71% reached an RER >or= 1.05 and 47% reached an RER >or= 1.15. In these older patients, AT was detectable in 68% of CPXs performed, and the mean peak VO2 was 10 +/- 3 ml/kg per min. CONCLUSIONS In elderly patients with CHF, the CPX is safe, feasible and able to provide basic information for individual risk assessment. These findings potentially extend the indications of CPX, which is currently applied to selected middle-aged patients with CHF, to the elderly population.
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Witham MD, Argo IS, Johnston DW, Struthers AD, McMurdo MET. Long-Term Follow-Up of Very Old Heart Failure Patients Enrolled in a Trial of Exercise Training. ACTA ACUST UNITED AC 2007; 16:243-8. [PMID: 17617751 DOI: 10.1111/j.1076-7460.2007.06488.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Little is known about how physical and psychological status changes with time in older heart failure patients. The authors followed up a cohort of 82 patients (mean age, 80.5 years) enrolled in a randomized controlled trial of exercise training in heart failure. Six-minute walk test, accelerometry, functional status, quality of life, anxiety, and depression were measured at baseline, 3 months, 6 months, and a mean of 19 months post-enrollment. There were no significant differences between the exercise and control groups at long-term follow-up. Six-minute walk distance declined by only 0.2 m/month in those attending final follow-up (vs 4.6 m/month in nonattenders; P=.03). Similar results were seen for other outcomes. Only a small proportion of the variance in change of any of the outcomes was explained by differences in baseline variables.
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Affiliation(s)
- Miles D Witham
- Section of Ageing and Health, University of Dundee, Ninewells Hospital, UK.
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Abstract
Despite advances in the therapy of cardiovascular disorders, heart failure remains a challenging disease with a dismal prognosis. A plethora of variables have been shown to be related to survival in patients with heart failure. These include heart failure etiology, clinical presentation, ventricular performance, exercise capacity, neurohormones and, more recently, inflammatory and necrosis markers. In this review we briefly list established predictive markers and discuss whether survival can accurately be predicted in this condition.
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Affiliation(s)
- Viorel G Florea
- Heart Failure Program, VA Medical Center, One Veterans Drive, 111-C, Minneapolis, MN 55417, USA
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Lötscher F, Löffel T, Steiner R, Vogt M, Klossner S, Popp A, Lippuner K, Hoppeler H, Däpp C. Biologically relevant sex differences for fitness-related parameters in active octogenarians. Eur J Appl Physiol 2007; 99:533-40. [PMID: 17219173 DOI: 10.1007/s00421-006-0368-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/27/2006] [Indexed: 12/21/2022]
Abstract
The number of elderly people is growing in western populations, but only few maximal performance data exist for people >75 years, in particular for European octogenarians. This study was performed to characterize maximal performance of 55 independently living subjects (32 women, 81.1 +/- 3.4 years; 23 men, 81.7 +/- 2.9 years) with a focus on sex differences. Maximal performance was determined in a ramp test to exhaustion on a bicycle ergometer with ergospirometry, electrocardiogram and blood lactate measurements. Maximal isometric extension strength of the legs (MEL) was measured on a force platform in a seated position. Body composition was quantified by X-ray absorptiometry. In >25% of the subjects, serious cardiac abnormalities were detected during the ramp test with men more frequently being affected than women. Maximal oxygen consumption and power output were 18.2 +/- 3.2 versus 25.9 +/- 5.9 ml min(-1) kg(-1) and 66 +/- 12 versus 138 +/- 40 W for women versus men, with a significant sex difference for both parameters. Men outperformed women for MEL with 19.0 +/- 3.8 versus 13.6 +/- 3.3 N kg(-1). Concomitantly, we found a higher proportion of whole body fat in women (32.1 +/- 6.2%) compared to men (20.5 +/- 4.4%). Our study extends previously available maximal performance data for endurance and strength to independently living European octogenarians. As all sex-related differences were still apparent after normalization to lean body mass, it is concluded that it is essential to differentiate between female and male subjects when considering maximal performance parameters in the oldest segment of our population.
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Affiliation(s)
- Fabian Lötscher
- Institute of Anatomy, University of Bern, Baltzerstrasse 2, 3000, Bern 9, Switzerland
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Owen A. Life expectancy of elderly and very elderly patients with chronic heart failure. Am Heart J 2006; 151:1322.e1-4. [PMID: 16781244 DOI: 10.1016/j.ahj.2006.03.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2005] [Accepted: 03/20/2006] [Indexed: 11/28/2022]
Abstract
INTRODUCTION The survival of patients with chronic heart failure is typically reported as a comparison of different groups of patients using the hazard ratio from a Cox proportional hazards analysis. The absolute survival is generally neglected. Furthermore, attention is often focused on relatively young patients although chronic heart failure largely affects older patients. The present study was undertaken to determine the life expectancy (a measure of absolute survival) of older patients with chronic heart failure. METHODS Patients >75 years with chronic heart failure caused by impaired left ventricular systolic function who attended an outpatient clinic were included in the study. Follow-up commenced on August 1, 1993, and continued until September 30, 2005, when vital status was ascertained. Mean survival time was calculated as a measure of life expectancy. RESULTS There were 210 patients included in the study. Male patients of mean age 80 years had a life expectancy of 3.9 years (95% CI 3.2-4.5), compared with that of 7 years for men in the general population of the same age. For female patients of mean age 80 years, the life expectancy was 4.5 years (95% CI 3.6-5.7), compared with 8.5 years for the general population of women of the same age. CONCLUSION The presence of chronic heart failure in older patients results in an approximately 50% reduction in life expectancy.
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Affiliation(s)
- Andrew Owen
- Department of Cardiology, Kent and Canterbury Hospital, Canterbury, UK
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Martínez-Sellés M, García Robles JA, Prieto L, Domínguez Muñoa M, Frades E. Heart failure in the elderly: age-related differences in clinical profile and mortality. Int J Cardiol 2005; 102:55-60. [PMID: 15939099 DOI: 10.1016/j.ijcard.2004.03.072] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2003] [Revised: 02/18/2004] [Accepted: 03/05/2004] [Indexed: 11/19/2022]
Abstract
BACKGROUND Age influence in the prognosis in unselected patients with heart failure has not been widely studied. AIMS To evaluate possible differences in clinical profile and outcome of patients hospitalized with HF according to age. METHODS AND RESULTS During 1996, a total of 1065 hospital in-patients had confirmed heart failure, with follow-up data through 2002. Patients were separated in two groups < or = 75 and > 75 years of age. Older patients were less frequently men (32 vs. 52%) and had a higher prevalence of previous stroke (14 vs. 10%). Echocardiography was performed less frequently in older patients (55% vs. 78%) and normal systolic function (55 vs. 40%), and aortic stenosis (12 vs. 7%) were more prevalent. They received less anticoagulants (11 vs. 43%) and beta-blockers (2 vs. 7%), while the opposite happened with aspirin (32 vs. 23%) and diuretics (88 vs. 80%). During follow-up, 507 patients died: 55.9% vs. 38.5%. Being > 75 years of age was the strongest predictor of mortality HR: 1.7, CI 95% 1.5-2.1, P < 0.0001. CONCLUSION Patients with 76 or more years admitted with HF have a different clinical profile. Echocardiography, oral anticoagulation and beta-blockers were underused in these patients. Age was the strongest predictor of long-term mortality.
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Alehagen U, Lindstedt G, Levin LA, Dahlström U. The risk of cardiovascular death in elderly patients with possible heart failure. Results from a 6-year follow-up of a Swedish primary care population. Int J Cardiol 2005; 100:17-27. [PMID: 15820281 DOI: 10.1016/j.ijcard.2004.03.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2003] [Revised: 03/05/2004] [Accepted: 03/05/2004] [Indexed: 10/26/2022]
Abstract
UNLABELLED Little is known about the prognosis and clinical variables influencing the prognosis among elderly patients in primary health care with mild to moderate heart failure. AIM To evaluate the risk of cardiovascular mortality in elderly patients with symptoms of heart failure with respect to systolic and diastolic function, and functional impairment. To evaluate prognostic determinants and to risk-stratify the patients. METHODS A cardiologist examined 510 patients, out of 548 invited, attending primary care for symptoms of dyspnoea, fatigue and/or peripheral oedema and assessed New York Heart Association (NYHA) functional class. Examination by Doppler echocardiography was done in 454 patients, 56 patients being excluded because of, e.g., atrial fibrillation. Abnormal systolic function was defined as ejection fraction<40%. The diastolic function was evaluated using the mitral inflow and pulmonary venous flow variables. Different clinical and echocardiographic variables were analysed using a Cox regression analysis to identify those most influencing the risk of cardiovascular mortality. CONCLUSION Abnormal systolic and/or diastolic function was found in 219 patients (48% of the 454 patients who could be echocardiographically completely investigated). The follow-up period was 6 years. Total mortality was 20%, and cardiovascular mortality was 14% (70% of total mortality). Cardiovascular mortality was high in patients with severely impaired functional capacity and ejection fraction<40% at the start of the study. Risk variables identified were male gender, diabetes mellitus, impaired functional capacity and abnormal cardiac function by echocardiography. A prognostic score model using simple clinical variables (gender, NYHA class, cardiac function) was developed to assess the risk of cardiovascular death in order to identify patients with high, moderate or low risk. In a ROC curve analysis, the AUC for clinical variables was only 0.75, whereas the AUC for clinical variables and echocardiography was 0.78, indicating that the additional prognostic information obtained by Doppler echocardiography was rather small.
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Affiliation(s)
- U Alehagen
- Department of Cardiology, Heart Center, University Hospital of Linköping, SE-581 85, Linköping, Sweden.
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Bibbins-Domingo K, Lin F, Vittinghoff E, Barrett-Connor E, Grady D, Shlipak MG. Renal insufficiency as an independent predictor of mortality among women with heart failure. J Am Coll Cardiol 2004; 44:1593-600. [PMID: 15489091 DOI: 10.1016/j.jacc.2004.07.040] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2004] [Revised: 06/29/2004] [Accepted: 07/16/2004] [Indexed: 12/21/2022]
Abstract
OBJECTIVES We sought to explore the association between renal insufficiency and mortality among women with heart failure (HF) and to evaluate this risk by the presence of preserved or depressed systolic function. BACKGROUND Although HF is common in older women, little is known about their risk factors for mortality. METHODS This prospective cohort study retrospectively analyzed data from the Heart and Estrogen/progestin Replacement Study (HERS). Of the 2,763 women in HERS, 702 had HF. Renal function was categorized as creatinine clearance (CrCl) >60 ml/min, 40 to 60 ml/min, and <40 ml/min. We used proportional hazards models to evaluate the association between renal insufficiency and mortality. RESULTS Over a mean 5.8 years, 228 women with HF died (32%). Renal insufficiency was strongly associated with mortality, even after adjustment for co-morbid conditions, systolic function, and medications (adjusted hazard ratio [HR] 1.53, 95% confidence interval [CI] 1.09 to 2.16 for CrCl 40 to 60 ml/min; adjusted HR 2.40, 95% CI 1.60 to 3.62 for CrCl <40 ml/min). Preserved or depressed systolic function did not modify the association between renal insufficiency and mortality risk, but the use of angiotensin-converting enzyme (ACE) inhibitors did modify this risk (ACE users: adjusted HR = 0.9, 95% CI 0.6 to 1.6; ACE nonusers: adjusted HR 2.1, 95% CI 1.3 to 3.2; p = 0.02 for interaction). Compared with other risk factors for mortality, renal insufficiency had the highest population attributable risk (27%). CONCLUSIONS Renal insufficiency was a major predictor of mortality among women with HF and preserved or depressed systolic function. This risk was attenuated by the use of ACE inhibitors.
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Affiliation(s)
- Kirsten Bibbins-Domingo
- Division of General Internal Medicine, San Francisco General Hospital, University of California at San Francisco, San Francisco, CA 94143-1364, USA.
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Arena R, Myers J, Aslam SS, Varughese EB, Peberdy MA. Prognostic Comparison of the Minute Ventilation/Carbon Dioxide Production Ratio and Slope in Patients with Heart Failure. ACTA ACUST UNITED AC 2004. [DOI: 10.1159/000078907] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Witham MD, McMurdo MET. Don't shoot the messenger: the 6-minute walk test is a useful outcome measure in exercise trials. Am Heart J 2003; 146:E7. [PMID: 12891214 DOI: 10.1016/s0002-8703(03)00290-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
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Kerzner R, Gage BF, Freedland KE, Rich MW. Predictors of mortality in younger and older patients with heart failure and preserved or reduced left ventricular ejection fraction. Am Heart J 2003; 146:286-90. [PMID: 12891197 DOI: 10.1016/s0002-8703(03)00151-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND Although half of elderly patients with heart failure have preserved left ventricular ejection fraction (LVEF), little is known about predictors of mortality in this group. METHODS We reviewed the charts of 400 patients hospitalized at an academic medical center in 1999 with a principal discharge diagnosis of heart failure. Patients were divided into 4 groups on the basis of age > or =75 or <75 years and the presence of preserved or reduced LVEF. Vital status was ascertained as of October 2001. RESULTS A total of 373 patients (mean age 69.1 years, 56.0% female, 47.5% nonwhite) underwent echocardiography to assess LVEF. Of these, 216 patients were <75 years of age (81 with preserved LVEF [group 1, 21.7%] and 135 with reduced LVEF [group 2, 36.2%]), and 157 were > or =75 years of age (81 with preserved LVEF [group 3, 21.7%] and 76 with reduced LVEF [group 4, 19.6%]). After a mean follow-up of 25 months, independent predictors of mortality among the 4 groups differed substantially: group 1, male sex, prescription of a calcium-channel blocker, and diuretic dose at discharge; group 2, blood urea nitrogen (BUN), lower hemoglobin level, and not being prescribed a beta-blocker at discharge; group 3, BUN; and group 4, older age, history of myocardial infarction, severity of reduced LVEF, and diuretic dose. CONCLUSION In patients with heart failure, predictors of mortality vary by age and by the presence of preserved or reduced LVEF. Traditional predictors of mortality in patients with reduced LVEF may not apply to elderly patients with preserved LVEF.
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Affiliation(s)
- Roger Kerzner
- Department of Medicine, Washington University School of Medicine, St Louis, Mo 63110, USA
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Abstract
The heart is a muscular mechanical pump with an ability to generate both flow (cardiac output) and pressure. The product of flow output and systemic arterial pressure is the rate of useful work done, or power output. Cardiac pumping capability can be defined as the cardiac power output (CPO(max)) achieved by the heart during maximal stimulation. Cardiac reserve is the increase in power output as the cardiac performance is increased from the resting to the maximally stimulated state. Recently, several studies have shown that CPO(max), a direct indicator of overall cardiac function, measured directly or as an approximation, is a major determinant of exercise capacity and a most powerful predictor of prognosis for patients with chronic heart failure. The same holds true in acute heart failure, where it is also useful in subclassifying the conditions to select the appropriate treatment.
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Affiliation(s)
- Gad Cotter
- *The Cardiology Institute, Assaf-Harofeh Medical Center, Zerifin, Israel.
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Witham MD, Struthers AD, McMurdo MET. Exercise training as a therapy for chronic heart failure: can older people benefit? J Am Geriatr Soc 2003; 51:699-709. [PMID: 12752848 DOI: 10.1034/j.1600-0579.2003.00217.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Despite recent advances in pharmacological therapy, chronic heart failure remains a major cause of morbidity and mortality in older people. Studies of exercise training in younger, carefully selected patients with heart failure have shown improvements in symptoms and exercise capacity and in many pathophysiological aspects of heart failure, including skeletal myopathy, ergoreceptor function, heart rate variability, endothelial function, and cytokine expression. Data on mortality and hospitalization are lacking, and effects on everyday activity, depression, and quality of life are unclear. Exercise therapy for patients with heart failure appears to be safe and has the potential to improve function and quality of life in older people with heart failure. To realize these potential benefits, exercise programs that are suitable for older, frail people need to be established and tested in an older, frail, unselected population with comorbidities.
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Affiliation(s)
- Miles D Witham
- Section of Aging and Health, Department of Clinical Pharmacology, Ninewells Hospital and Medical School, University of Dundee, UnitedKingdom.
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Lim E, Large S, Wallwork J, Parameshwar J. Candidate selection for heart transplantation in the 21st Century. Curr Opin Organ Transplant 2002. [DOI: 10.1097/00075200-200209000-00002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lissin LW, Gauri AJ, Froelicher VF, Ghayoumi A, Myers J, Giacommini J. The prognostic value of body mass index and standard exercise testing in male veterans with congestive heart failure. J Card Fail 2002; 8:206-15. [PMID: 12397568 DOI: 10.1054/jcaf.2002.126812] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To evaluate the prognostic characteristics of body mass index (BMI) and standard exercise test variables in a consecutive series of patients with mild to moderate congestive heart failure (CHF) referred for standard exercise tests. BACKGROUND Controversy exists regarding the prognostic importance of BMI, etiology, and exercise test variables in patients with CHF. METHODS All patients referred for evaluation at two university-affiliated Veterans Affairs Medical Centers who underwent treadmill tests for clinical indications between 1987 and 2000 were determined to be dead or alive using the Social Security Death Index after a mean 6 years follow-up. Clinical and exercise test variables were collected prospectively according to standard definitions; testing and data management were performed in a standardized fashion using a computer-assisted protocol. Survival analysis was performed using all-cause mortality as the endpoint for follow-up. RESULTS A total of 522 patients with a history and clinical findings of CHF underwent exercise testing. Forty-two percent died during the follow-up period, for an average annual mortality of 6.7%. Cox proportional hazards model chose peak metabolic equivalents (METs), BMI, age, and ischemic etiology in rank order as independently and significantly associated with time to death. A score based on these variables classified patients into low (2% annual mortality), medium (5.2%), and high-risk groups (7% annual mortality). CONCLUSION Standard exercise testing and BMI can be used to estimate prognosis in outpatients with heart failure. A score incorporating METs, BMI, age, and etiology efficiently stratified these patients. BMI was chosen by the survival analysis, confirming its surprising inverse relationship to prognosis in CHF patients (i.e., heavier patients do better).
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Affiliation(s)
- Lynette W Lissin
- Division of Cardiovascular Medicine, Stanford University Medical Center, Palo Alto, California 94304, USA
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