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Gori M, Marini M, De Maria R, Gonzini L, Gorini M, Cassaniti L, Benvenuto M, Municinò A, Navazio A, Ammirati E, Leonardi G, Pagnoni N, Montagna L, Catalano M, Midi P, Floresta AM, Pulignano G, Maggioni AP, Tavazzi L, Iacoviello M. Age-related changes in clinical characteristics and outcomes of chronic heart failure outpatients in a cardiology setting. A report from the Italian Network on Heart Failure. Int J Cardiol 2022; 346:36-44. [PMID: 34793855 DOI: 10.1016/j.ijcard.2021.11.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/08/2021] [Accepted: 11/07/2021] [Indexed: 11/30/2022]
Abstract
AIMS Ageing and comorbidities are increasing frailty/complexity of heart failure (HF) patients globally. We assessed evolving trends over two decades according to patients' age and time of recruitment in a nationwide cardiology setting in Italy. METHODS AND RESULTS Chronic HF outpatients recruited between 1999 and 2018 (N = 14,823) were divided into 3 cohorts: 1999-2005 (N = 5404); 2006-2011 (N = 3971); 2012-2018 (N = 5448). We analyzed temporal changes in clinical characteristics, therapies, and outcome (1-year all-cause mortality/cardiovascular hospitalization), overall and by age group: <65 (n = 5465); 65-79 (n = 6838); ≥80 (n = 2520) years old. Across enrolment epochs, comorbidities (atrial fibrillation, hypertension, obesity) increased by both epoch/age groups (p < 0.001), whereas the prevalence of ischemic etiology declined among patients ≥65 years (p = 0.05). Accordingly, the preserved LVEF phenotype (HFpEF) increased in all age categories (p < 0.001) over time. Moreover, the use of betablockers, mineralocorticoid-receptor antagonists and loop-diuretics rose by enrolment epoch in all age groups (p < 0.05). In parallel with these epidemiologic/treatment changes, age-adjusted survival free from cardiovascular hospitalization improved over time (p < 0.0001). However, divergent trends in the end-point components were apparent according to age groups: mortality decreased in patients<80 years, although hospitalizations remained stable in the youngest group, while subjects ≥65 years were less likely to be admitted for cardiovascular causes (all p < 0.005). CONCLUSIONS Over two decades in a cardiology outpatient setting, the prevalence of comorbid HFpEF increased in all age categories. Mortality improved among patients<80 years and cardiovascular hospitalizations decreased in patients≥65 years. These findings point to the value of cardiologist' input in the management of adult chronic HF patients at all ages.
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Affiliation(s)
- Mauro Gori
- Cardiology Division, Cardiovascular Department, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Marco Marini
- Department of Cardiovascular Sciences Cardiology-ICCU, Ospedali Riuniti, Ancona, Italy
| | - Renata De Maria
- CNR - Clinical Physiology Institute, Great Metropolitan Hospital Niguarda, Milan, Italy.
| | - Lucio Gonzini
- ANMCO Research Center, Heart Care Foundation, Florence, Italy
| | - Marco Gorini
- ANMCO Research Center, Heart Care Foundation, Florence, Italy
| | - Leonarda Cassaniti
- Cardiology Division, A.O. of National Importance and High Specialization "Garibaldi", "Garibaldi-Nesima" Hospital, Catania, Italy
| | | | | | - Alessandro Navazio
- Cardiology Division, Arcispedale S. Maria Nuova, Azienda USL di Reggio Emilia - IRCCS, Reggio Emilia, Italy
| | - Enrico Ammirati
- De Gasperis Cardio Center, and Transplant Center, Niguarda Hospital, Milano, Italy
| | - Giuseppe Leonardi
- SSD Severe Heart Failure, Policlinico Catania PO G. Rodolico, Catania, Italy
| | - Nicoletta Pagnoni
- Cardiology and Cardiac Rehabilitation, AO, San Giovanni Addolorata, Rome, Italy
| | - Laura Montagna
- Heart Failure Unit, Cardiology Division, San Luigi Gonzaga University Hospital, Orbassano, (TO), Italy
| | | | - Paolo Midi
- "Heart Failure and Cardiomyopathies" Department, Cardiology Division, Castelli Hospital, Ariccia (RM), Italy
| | - Agata Marina Floresta
- Cardiology Division Villa Sofia-Regional reference Center for the diagnosis and treatment of heart failure, AOR Villa Sofia-Cervello, Palermo, Italy
| | - Giovanni Pulignano
- Heart Failure Unit/Cardiology Unit/CCU, A.O. San Camillo-Forlanini, Rome, Italy
| | - Aldo P Maggioni
- ANMCO Research Center, Heart Care Foundation, Florence, Italy
| | - Luigi Tavazzi
- Maria Cecilia Hospital, GVM Care and Research, Cotignola, Italy
| | - Massimo Iacoviello
- Cardiology Unit, University Hospital Policlinico Riuniti, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
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2
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Lau K, Malik A, Foroutan F, Buchan TA, Daza JF, Sekercioglu N, Orchanian-Cheff A, Alba AC. Resting Heart Rate as an Important Predictor of Mortality and Morbidity in Ambulatory Patients With Heart Failure: A Systematic Review and Meta-Analysis. J Card Fail 2020; 27:349-363. [PMID: 33171294 DOI: 10.1016/j.cardfail.2020.11.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 10/30/2020] [Accepted: 11/04/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Resting heart rate is a risk factor of adverse heart failure outcomes; however, studies have shown controversial results. This meta-analysis evaluates the association of resting heart rate with mortality and hospitalization and identifies factors influencing its effect. METHODS AND RESULTS We systematically searched electronic databases in February 2019 for studies published in 2005 or before that evaluated the resting heart rate as a primary predictor or covariate of multivariable models of mortality and/or hospitalization in adult ambulatory patients with heart failure. Random effects inverse variance meta-analyses were performed to calculate pooled hazard ratios. The Grading of Recommendations, Assessment, Development and Evaluation approach was used to assess evidence quality. Sixty-two studies on 163,445 patients proved eligible. Median population heart rate was 74 bpm (interquartile range 72-76 bpm). A 10-bpm increase was significantly associated with increased risk of all-cause mortality (hazard ratio 1.10, 95% confidence interval 1.08-1.13, high quality). Overall, subgroup analyses related to patient characteristics showed no changes to the effect estimate; however, there was a strongly positive interaction with age showing increasing risk of all-cause mortality per 10 bpm increase in heart rate. CONCLUSIONS High-quality evidence demonstrates increasing resting heart rate is a significant predictor of all-cause mortality in ambulatory patients with heart failure on optimal medical therapy, with consistent effect across most patient factors and an increased risk trending with older age.
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Affiliation(s)
- Kimberley Lau
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Abdullah Malik
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Farid Foroutan
- McMaster University, Hamilton, Ontario, Canada; Ted Rogers Centre for Heart Research, University Health Network, Toronto, Ontario, Canada
| | - Tayler A Buchan
- Ted Rogers Centre for Heart Research, University Health Network, Toronto, Ontario, Canada
| | | | | | - Ani Orchanian-Cheff
- Library and Information Services, University Health Network, Toronto, Ontario, Canada
| | - Ana C Alba
- Ted Rogers Centre for Heart Research, University Health Network, Toronto, Ontario, Canada.
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3
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Su Y, Ma M, Zhang H, Pan X, Zhang X, Zhang F, Lv Y, Yan C. Prognostic value of serum hyponatremia for outcomes in patients with heart failure with preserved ejection fraction: An observational cohort study. Exp Ther Med 2020; 20:101. [PMID: 32973950 PMCID: PMC7507018 DOI: 10.3892/etm.2020.9231] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 07/01/2020] [Indexed: 12/14/2022] Open
Abstract
Hyponatremia is a risk factor associated with poor prognosis in patients with heart failure (HF) with reduced ejection fraction. However, whether hyponatremia has a similar role in patients with HF with preserved ejection fraction (HFpEF) has remained controversial. Therefore, the present study aimed to investigate the clinical characteristics and 24-month prognostic profile of a cohort of patients with HFpEF in China. From a registered observational cohort study on 1,027 subjects with HF, 496 patients with HFpEF were included. The association between baseline hyponatremia on admission and 24-month adverse outcomes (including all-cause mortality, re-hospitalization for HF and stroke) was analyzed using logistic regression with the Cox proportional hazards model. Of the 496 patients with HFpEF with a mean age of 72.8 years and proportion of males of 53.0%, 71 patients were diagnosed with hyponatremia. Furthermore, 29 patients (5.8%) were lost to follow-up. The hyponatremia group had lower blood pressure and serum hemoglobin, higher N-terminal pro B-type natriuretic peptide (NT-proBNP) and D-dimer, more patients with a history of atrial fibrillation and a higher proportion of spironolactone and loop diuretic use. According to a multivariate regression analysis, New York Heart Association functional classes III-IV and a serum NT-proBNP level above the median were risk factors for hyponatremia, while higher systolic blood pressure and β-blocker use were protective factors against hyponatremia. In the Kaplan-Meier analysis, hyponatremia was associated with all-causes of mortality, re-hospitalization for HF and a poor prognosis for patients suffering from strokes (log-rank P<0.05 for all 3 endpoints). On multivariate logistic regression analysis with the Cox proportional hazard model, hyponatremia was an independent predictor of three adverse outcomes [all-cause mortality: Hazard ratio (HR)=1.54, 95% CI=1.07-2.91, P=0.034; re-hospitalization for heart failure: HR=1.28, 95% CI=1.16-2.47, P=0.013; stroke: HR=1.78, 95% CI=1.04-2.89, P=0.016]. Collectively, the present results suggested that hyponatremia on admission was significantly associated with all-cause mortality, re-hospitalization and stroke within 24 months in a cohort of hospitalized patients with HFpEF in China. Thus, hyponatremia should be carefully monitored and frequently adjusted in patients with HFpEF (NCT04062500).
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Affiliation(s)
- Yang Su
- Department of Cardiology, Shanghai Tenth People's Hospital, Qidong People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Mengqiu Ma
- Department of Cardiology, Shanghai Tenth People's Hospital, Qidong People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Hengbin Zhang
- Department of Cardiology, Shanghai Tenth People's Hospital, Qidong People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Xin Pan
- Department of Geriatrics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Xianling Zhang
- Department of Cardiology, Shanghai Tenth People's Hospital, Qidong People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Fenglei Zhang
- Department of Cardiology, Shanghai Yoda Cardiothoracic Hospital, Shanghai 200012, P.R. China
| | - Yangbo Lv
- Department of Cardiology, Shanghai Tenth People's Hospital, Qidong People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China.,Department of Cardiology, Shanghai Yoda Cardiothoracic Hospital, Shanghai 200012, P.R. China
| | - Chunxi Yan
- Department of Cardiology, Shanghai Tenth People's Hospital, Qidong People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
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Rodriguez M, Hernandez M, Cheungpasitporn W, Kashani KB, Riaz I, Rangaswami J, Herzog E, Guglin M, Krittanawong C. Hyponatremia in Heart Failure: Pathogenesis and Management. Curr Cardiol Rev 2019; 15:252-261. [PMID: 30843491 PMCID: PMC8142352 DOI: 10.2174/1573403x15666190306111812] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 02/21/2019] [Accepted: 02/25/2019] [Indexed: 12/11/2022] Open
Abstract
Hyponatremia is a very common electrolyte abnormality, associated with poor short- and long-term outcomes in patients with heart failure (HF). Two opposite processes can result in hyponatremia in this setting: Volume overload with dilutional hypervolemic hyponatremia from congestion, and hypovolemic hyponatremia from excessive use of natriuretics. These two conditions require different therapeutic approaches. While sodium in the form of normal saline can be lifesaving in the second case, the same treatment would exacerbate hyponatremia in the first case. Hypervolemic hyponatremia in HF patients is multifactorial and occurs mainly due to the persistent release of arginine vasopressin (AVP) in the setting of ineffective renal perfusion secondary to low cardiac output. Fluid restriction and loop diuretics remain mainstay treatments for hypervolemic/dilutional hyponatremia in patients with HF. In recent years, a few strategies, such as AVP antagonists (Tolvaptan, Conivaptan, and Lixivaptan), and hypertonic saline in addition to loop diuretics, have been proposed as potentially promising treatment options for this condition. This review aimed to summarize the current literature on pathogenesis and management of hyponatremia in patients with HF.
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Affiliation(s)
- Mario Rodriguez
- Department of Internal Medicine, Icahn School of Medicine at Mount Sinai St' Luke and Mount Sinai West, New York, NY, United States.,Cardiac Intensive Care Unit, Mount Sinai St' Luke, Mount Sinai Heart, New York, NY, United States
| | - Marcelo Hernandez
- Department of Internal Medicine, Icahn School of Medicine at Mount Sinai St' Luke and Mount Sinai West, New York, NY, United States
| | - Wisit Cheungpasitporn
- Division of Nephrology, Department of Internal Medicine, University of Mississippi Medical Center, Jackson, Mississippi, MS, United States
| | - Kianoush B Kashani
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, MN, United States.,Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN, United States
| | - Iqra Riaz
- Department of Nephrology, Einstein Medical Center, Philadelphia, PA, United States
| | - Janani Rangaswami
- Department of Nephrology, Einstein Medical Center, Philadelphia, PA, United States
| | - Eyal Herzog
- Cardiac Intensive Care Unit, Mount Sinai St' Luke, Mount Sinai Heart, New York, NY, United States
| | - Maya Guglin
- Division of Cardiology, Mechanical Assisted Circulation, Gill Heart Institute, University of Kentucky, Kentucky, KY, United States
| | - Chayakrit Krittanawong
- Department of Internal Medicine, Icahn School of Medicine at Mount Sinai St' Luke and Mount Sinai West, New York, NY, United States.,Cardiac Intensive Care Unit, Mount Sinai St' Luke, Mount Sinai Heart, New York, NY, United States
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5
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Shah V, Jahan N. Prognostic Significance of Hyponatremia in ST-elevation Myocardial Infarction/Heart Failure Patients. Cureus 2019; 11:e5673. [PMID: 31720149 PMCID: PMC6823034 DOI: 10.7759/cureus.5673] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 09/16/2019] [Indexed: 11/25/2022] Open
Abstract
ST-elevation myocardial infarction (STEMI) and heart failure (HF) are common, big-budget, debilitating and expanding diseases. Cardiovascular diseases, especially STEMI and heart failure have been known to cause 17.3 million deaths worldwide annually. Hyponatremia, delineated as a serum sodium (sNa) concentration <135 mmol/l, is a frequently seen electrolyte disturbance in practice and the prevalence, clinical impact; the prognostic factor of low SNa in STEMI/heart failure patients vary widely. The aim of this review is to assess its existence and comparing survival difference between hypo and normonatremic patients. A comprehensive review of the published articles was conducted using database PubMed. We found a total of over 1400 articles. The inclusion criteria used for this review were age >65 years, published within the last 10 years, written in English, performed on human subjects and of studies such as reviews and randomized controlled trials (RCTs), especially for heart failure MeSH words. By applying this inclusion criterion, we found out 40 relevant articles which included 26 cohort studies, four clinical trials, four review articles, and six RCTs. In the analysis of 7,06,899 patients with STEMI/heart failure, hyponatremia was significantly linked to causing all-cause mortality, both short and long term (hazard ratio [HR] as continuous variable: 1.06; 95% confidence interval [CI]: 1.01-1.11; P = 0.026; HR as categorical variable: 1.71; 95% CI: 1.06-2.75; P = 0.028). The rates of rehospitalization were also higher (odds ratio, 1.68; 95% confidence interval, 1.32-2.14) along with prolonged hospital stays as well as a greater cost burden as compared to patients with normal serum sodium. It was existent not only in patients with reduced ejection fraction (HFrEF) but also in subjects with preserved ejection fraction (HFpEF) (HR 1.40, 95% CI 1.12 to 1.75, P = 0.004). Rise of first follow-up and discharge sodium does seem to have positive linkage on survival as well (hazard ratio [HR] 0.429, 95% CI 0.191-0.960, P = 0.04). Hyponatremia is the most frequently encountered electrolyte abnormality in clinical practice and has a poor prognosis in both STEMI and heart failure patients. It exacerbates both short and long term mortality, rehospitalization rates, as well as the average length of stay in the hospital. Although it is still a mystery whether hyponatremia is just a marker of iller patients or the core of poor prognosis in patients with STEMI and HF, one thing is certain: timely recognition of patients at risk for developing hyponatremia could help to commence early treatment.
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Affiliation(s)
- Vraj Shah
- Cardiology, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
| | - Nusrat Jahan
- Internal Medicine, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
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6
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Park JJ, Cho YJ, Oh IY, Park HA, Lee HY, Kim KH, Yoo BS, Kang SM, Baek SH, Jeon ES, Kim JJ, Cho MC, Chae SC, Oh BH, Choi DJ. Short and long-term prognostic value of hyponatremia in heart failure with preserved ejection fraction versus reduced ejection fraction: An analysis of the Korean Acute Heart Failure registry. Int J Cardiol 2017; 248:239-245. [DOI: 10.1016/j.ijcard.2017.08.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 07/20/2017] [Accepted: 08/03/2017] [Indexed: 11/28/2022]
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7
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De Vecchis R, Cantatrione C, Mazzei D, Baldi C. Vasopressin Receptor Antagonists for the Correction of Hyponatremia in Chronic Heart Failure: An Underutilized Therapeutic Option in Current Clinical Practice? J Clin Med 2016; 5:E86. [PMID: 27706088 PMCID: PMC5086588 DOI: 10.3390/jcm5100086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 09/22/2016] [Accepted: 09/27/2016] [Indexed: 12/23/2022] Open
Abstract
In the congestive heart failure (CHF) setting, chronic hyponatremia is very common. The present review aims at addressing topics relevant to the pathophysiology of hyponatremia in the course of CHF as well as its optimal treatment, including the main advantages and the limitations resulting from the use of the available dietary and pharmacological measures approved for the treatment of this electrolytic trouble. A narrative review is carried out in order to represent the main modalities of therapy for chronic hyponatremia that frequently complicates CHF. The limits of usual therapies implemented for CHF-related chronic hyponatremia are outlined, while an original analysis of the main advancements achieved with the use of vasopressin receptor antagonists (VRAs) is also executed. The European regulatory restrictions that currently limit the use of VRAs in the management of CHF are substantially caused by financial concerns, i.e., the high costs of VRA therapy. A thoughtful reworking of current restrictions would be warranted in order to enable VRAs to be usefully associated to loop diuretics for decongestive treatment of CHF patients with hyponatremia.
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Affiliation(s)
- Renato De Vecchis
- Cardiology Unit, Presidio Sanitario Intermedio "Elena d'Aosta", ASL Napoli 1 Centro, via Cagnazzi 29, 80137 Naples, Italy.
| | - Claudio Cantatrione
- Cardiology Unit, Presidio Sanitario Intermedio "Elena d'Aosta", ASL Napoli 1 Centro, via Cagnazzi 29, 80137 Naples, Italy.
| | - Damiana Mazzei
- Cardiology Unit, Presidio Sanitario Intermedio "Elena d'Aosta", ASL Napoli 1 Centro, via Cagnazzi 29, 80137 Naples, Italy.
| | - Cesare Baldi
- Heart Department, Interventional Cardiology, Azienda Ospedaliero-Universitaria "San Giovanni di Dio e Ruggi d'Aragona", via San Leonardo 1, 84131 Salerno, Italy.
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8
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De Vecchis R, Cantatrione C, Mazzei D. Vasopressin receptor antagonists in patients with chronic heart failure. Herz 2016; 42:492-497. [PMID: 27628642 DOI: 10.1007/s00059-016-4482-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 08/13/2016] [Indexed: 11/24/2022]
Abstract
In this brief review, the pathophysiology of hyponatremia and its clinical significance in the course of chronic heart failure (CHF) are illustrated. Moreover, issues concerning the optimal treatment for hyponatremia during CHF are addressed and discussed. In addition, advantages and limitations resulting from the use of vasopressin receptor antagonists, drugs that have recently emerged as the best available resource against hyponatremia, are highlighted.
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Affiliation(s)
- R De Vecchis
- Cardiology Unit, Presidio Sanitario Intermedio "Elena d'Aosta", ASL Napoli 1 Centro, Naples, Italy.
| | - C Cantatrione
- Cardiology Unit, Presidio Sanitario Intermedio "Elena d'Aosta", ASL Napoli 1 Centro, Naples, Italy
| | - D Mazzei
- Cardiology Unit, Presidio Sanitario Intermedio "Elena d'Aosta", ASL Napoli 1 Centro, Naples, Italy
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9
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Smith MW, Owens PL, Andrews RM, Steiner CA, Coffey RM, Skinner HG, Miyamura J, Popescu I. Differences in severity at admission for heart failure between rural and urban patients: the value of adding laboratory results to administrative data. BMC Health Serv Res 2016; 16:133. [PMID: 27089888 PMCID: PMC4836154 DOI: 10.1186/s12913-016-1380-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 04/12/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Rural/urban variations in admissions for heart failure may be influenced by severity at hospital presentation and local practice patterns. Laboratory data reflect clinical severity and guide hospital admission decisions and treatment for heart failure, a costly chronic illness and a leading cause of hospitalization among the elderly. Our main objective was to examine the role of laboratory test results in measuring disease severity at the time of admission for inpatients who reside in rural and urban areas. METHODS We retrospectively analyzed discharge data on 13,998 hospital discharges for heart failure from three states, Hawai'i, Minnesota, and Virginia. Hospital discharge records from 2008 to 2012 were derived from the State Inpatient Databases of the Healthcare Cost and Utilization Project, and were merged with results of laboratory tests performed on the admission day or up to two days before admission. Regression models evaluated the relationship between clinical severity at admission and patient urban/rural residence. Models were estimated with and without use of laboratory data. RESULTS Patients residing in rural areas were more likely to have missing laboratory data on admission and less likely to have abnormal or severely abnormal tests. Rural patients were also less likely to be admitted with high levels of severity as measured by the All Patient Refined Diagnosis Related Groups (APR-DRG) severity subclass, derivable from discharge data. Adding laboratory data to discharge data improved model fit. Also, in models without laboratory data, the association between urban compared to rural residence and APR-DRG severity subclass was significant for major and extreme levels of severity (OR 1.22, 95% CI 1.03-1.43 and 1.55, 95% CI 1.26-1.92, respectively). After adding laboratory data, this association became non-significant for major severity and was attenuated for extreme severity (OR 1.12, 95% CI 0.94-1.32 and 1.43, 95% CI 1.15-1.78, respectively). CONCLUSION Heart failure patients from rural areas are hospitalized at lower severity levels than their urban counterparts. Laboratory test data provide insight on clinical severity and practice patterns beyond what is available in administrative discharge data.
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Affiliation(s)
- Mark W. Smith
- />Truven Health Analytics, 7700 Old Georgetown Rd, Suite 650, Bethesda, MD 20814 USA
| | - Pamela L. Owens
- />Center for Delivery, Organization and Markets, Agency for Healthcare Research and Quality, 5600 Fishers Lane, Room 07W25C, Mail Stop Number 7W25B, Rockville, MD 20857 USA
| | - Roxanne M. Andrews
- />Center for Delivery, Organization and Markets, Agency for Healthcare Research and Quality, 5600 Fishers Lane, Room 07W25C, Mail Stop Number 7W25B, Rockville, MD 20857 USA
| | - Claudia A. Steiner
- />Center for Delivery, Organization and Markets, Agency for Healthcare Research and Quality, 5600 Fishers Lane, Room 07W25C, Mail Stop Number 7W25B, Rockville, MD 20857 USA
| | - Rosanna M. Coffey
- />Truven Health Analytics, 7700 Old Georgetown Rd, Suite 650, Bethesda, MD 20814 USA
| | | | - Jill Miyamura
- />Hawai’i Health Information Corporation, 733 Bishop St, Suite 1870, Honolulu, HI 96813 USA
| | - Ioana Popescu
- />Department of Internal Medicine, University of California Los Angeles, 200 UCLA Medical Plaza, Los Angeles, CA 90095 USA
- />RAND Corporation, Santa Monica, CA USA
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10
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Balling L, Kober L, Schou M, Torp-Pedersen C, Gustafsson F. Efficacy and safety of angiotensin-converting enzyme inhibitors in patients with left ventricular systolic dysfunction and hyponatremia. J Card Fail 2014; 19:725-30. [PMID: 24263115 DOI: 10.1016/j.cardfail.2013.09.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 09/04/2013] [Accepted: 09/11/2013] [Indexed: 10/26/2022]
Abstract
BACKGROUND The presence of hyponatremia has been perceived to increase the risk of adverse events on initiation of treatment with angiotensin-converting enzyme inhibition in heart failure patients. The aim of this study was to investigate if baseline hyponatremia (plasma Na(+) <135 mmol/L) predicts development of hypotension and renal impairment in patients with myocardial infarction (MI) and left ventricular dysfunction (LVD) treated with angiotensin-converting enzyme inhibitors. METHODS AND RESULTS A retrospective analysis was performed with data from the Trandolapril Cardiac Evaluation (TRACE) a double-blind randomized study. Plasma sodium levels were available in 1,731 patients, who were considered as the study population. Patients 3-7 days after MI with left LVD (LVEF ≤0.35), were randomized to trandolapril (n = 876) or placebo (n = 873). Baseline hyponatremia did not predict development of hypotension or worsening renal function after 1 month in patients treated with trandolapril compared with placebo (122 ± 19.1 mm Hg vs 123.2 ± 20.4 mm Hg [P = .84]; and creatinine clearance 57.4 ± 21.4 mL/min vs 55.2 ± 21.0 mL/min [P = .8]). There was no interaction between hyponatremia and the effect of trandolapril (P = .68). CONCLUSIONS Mild hyponatremia was not a contraindication for the initiation of treatment with angiotensin-converting enzyme inhibitors in patients with post-MI heart failure.
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Affiliation(s)
- Louise Balling
- Heart Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.
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11
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Usefulness of hyponatremia as a predictor for adverse events in patients with heart failure receiving cardiac resynchronization therapy. Am J Cardiol 2014; 114:83-7. [PMID: 24852916 DOI: 10.1016/j.amjcard.2014.04.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 04/03/2014] [Accepted: 04/03/2014] [Indexed: 11/22/2022]
Abstract
Hyponatremia portends a poor prognosis in patients with heart failure (HF). The aim of this study was to evaluate prognostic implication of hyponatremia on adverse events in patients with HF receiving cardiac resynchronization therapy (CRT). Additionally, the impact of improvement of hyponatremia after CRT device implantation was also evaluated. In this retrospective analysis, we included patients in whom a CRT device was implanted between April 2004 and April 2010 at our institution and had a baseline sodium level obtained within 72 hours of implantation. The patients were followed up for 3 years after implantation for subsequent primary composite end points, that is, hospitalization for HF, left ventricular assist device or heart transplant, and all-cause death. Sodium levels were followed up at 3 to 6 months after device implantation. Hyponatremia was defined as a serum sodium level of <135 mmol/L. A total of 402 patients were included (age 68.7 ± 12.3 years, women 20.9%). One hundred seventy-nine adverse events were noted in this period. In a Cox proportional hazards univariate model, hyponatremia (hazard ratio [HR] 1.54, 95% confidence interval [CI] 1.113 to 2.131, p = 0.009), creatinine (HR 1.267, 95% CI 1.156 to 1.389, p <0.001), and diuretics (HR 2.652, 95% CI 1.401 to 5.019, p = 0.003) were associated with occurrence of the composite end point. A total of 57.9% of patients with hyponatremia at baseline had the composite end point compared with 40.7% of those with normal sodium concentration (p = 0.004). Kaplan-Meier curve showed that hyponatremic patients fared worse. Also, patients in whom hyponatremia resolved after CRT device implantation had lower incidence of the composite end point compared with patients who had normal pre-CRT sodium levels but developed hyponatremia later. In conclusion, baseline hyponatremia is associated with poor prognosis in patients with HF. CRT can resolve hyponatremia in some patients after device implantation. Patients with postimplantation hyponatremia (either newly developed or persistent from baseline) have a poor clinical outcome. Post-CRT improvement of hyponatremia is associated with improved clinical outcomes.
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Corona G, Giuliani C, Parenti G, Norello D, Verbalis JG, Forti G, Maggi M, Peri A. Moderate hyponatremia is associated with increased risk of mortality: evidence from a meta-analysis. PLoS One 2013; 8:e80451. [PMID: 24367479 PMCID: PMC3867320 DOI: 10.1371/journal.pone.0080451] [Citation(s) in RCA: 184] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 10/03/2013] [Indexed: 12/13/2022] Open
Abstract
Background Hyponatremia is the most common electrolyte disorder in clinical practice, and evidence to date indicates that severe hyponatremia is associated with increased morbidity and mortality. The aim of our study was to perform a meta-analysis that included the published studies that compared mortality rates in subjects with or without hyponatremia of any degree. Methods and Findings An extensive Medline, Embase and Cochrane search was performed to retrieve the studies published up to October 1st 2012, using the following words: “hyponatremia” and “mortality”. Eighty-one studies satisfied inclusion criteria encompassing a total of 850222 patients, of whom 17.4% were hyponatremic. The identification of relevant abstracts, the selection of studies and the subsequent data extraction were performed independently by two of the authors, and conflicts resolved by a third investigator. Across all 81 studies, hyponatremia was significantly associated with an increased risk of overall mortality (RR = 2.60[2.31–2.93]). Hyponatremia was also associated with an increased risk of mortality in patients with myocardial infarction (RR = 2.83[2.23–3.58]), heart failure (RR = 2.47[2.09–2.92]), cirrhosis (RR = 3.34[1.91–5.83]), pulmonary infections (RR = 2.49[1.44–4.30]), mixed diseases (RR = 2.59[1.97–3.40]), and in hospitalized patients (RR = 2.48[2.09–2.95]). A mean difference of serum [Na+] of 4.8 mmol/L was found in subjects who died compared to survivors (130.1±5.6 vs 134.9±5.1 mmol/L). A meta-regression analysis showed that the hyponatremia-related risk of overall mortality was inversely correlated with serum [Na+]. This association was confirmed in a multiple regression model after adjusting for age, gender, and diabetes mellitus as an associated morbidity. Conclusions This meta-analysis shows for the first time that even a moderate serum [Na+] decrease is associated with an increased risk of mortality in commonly observed clinical conditions across large numbers of patients.
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Affiliation(s)
- Giovanni Corona
- Endocrinology Unit, Maggiore-Bellaria Hospital, Bologna, Italy
| | - Corinna Giuliani
- Endocrine Unit, “Center for Research, Transfer and High Education on Chronic, Inflammatory, Degenerative and Neoplastic Disorders for the Development of Novel Therapies” (DENOThe), Dept. of Experimental and Clinical Biomedical Sciences, University of Florence, Careggi Hospital, Florence, Italy
| | - Gabriele Parenti
- Endocrine Unit, “Center for Research, Transfer and High Education on Chronic, Inflammatory, Degenerative and Neoplastic Disorders for the Development of Novel Therapies” (DENOThe), Dept. of Experimental and Clinical Biomedical Sciences, University of Florence, Careggi Hospital, Florence, Italy
| | - Dario Norello
- Endocrine Unit, “Center for Research, Transfer and High Education on Chronic, Inflammatory, Degenerative and Neoplastic Disorders for the Development of Novel Therapies” (DENOThe), Dept. of Experimental and Clinical Biomedical Sciences, University of Florence, Careggi Hospital, Florence, Italy
| | - Joseph G. Verbalis
- Division of Endocrinology and Metabolism, Georgetown University, Washington, DC, United States of America
| | - Gianni Forti
- Endocrine Unit, “Center for Research, Transfer and High Education on Chronic, Inflammatory, Degenerative and Neoplastic Disorders for the Development of Novel Therapies” (DENOThe), Dept. of Experimental and Clinical Biomedical Sciences, University of Florence, Careggi Hospital, Florence, Italy
| | - Mario Maggi
- Andrology Unit, “Center for Research, Transfer and High Education on Chronic, Inflammatory, Degenerative and Neoplastic Disorders for the Development of Novel Therapies” (DENOThe), Dept. of Experimental and Clinical Biomedical Sciences, University of Florence, Careggi Hospital, Florence, Italy
| | - Alessandro Peri
- Endocrine Unit, “Center for Research, Transfer and High Education on Chronic, Inflammatory, Degenerative and Neoplastic Disorders for the Development of Novel Therapies” (DENOThe), Dept. of Experimental and Clinical Biomedical Sciences, University of Florence, Careggi Hospital, Florence, Italy
- * E-mail:
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Verbalis JG, Goldsmith SR, Greenberg A, Korzelius C, Schrier RW, Sterns RH, Thompson CJ. Diagnosis, evaluation, and treatment of hyponatremia: expert panel recommendations. Am J Med 2013; 126:S1-42. [PMID: 24074529 DOI: 10.1016/j.amjmed.2013.07.006] [Citation(s) in RCA: 594] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Hyponatremia is a serious, but often overlooked, electrolyte imbalance that has been independently associated with a wide range of deleterious changes involving many different body systems. Untreated acute hyponatremia can cause substantial morbidity and mortality as a result of osmotically induced cerebral edema, and excessively rapid correction of chronic hyponatremia can cause severe neurologic impairment and death as a result of osmotic demyelination. The diverse etiologies and comorbidities associated with hyponatremia pose substantial challenges in managing this disorder. In 2007, a panel of experts in hyponatremia convened to develop the Hyponatremia Treatment Guidelines 2007: Expert Panel Recommendations that defined strategies for clinicians caring for patients with hyponatremia. In the 6 years since the publication of that document, the field has seen several notable developments, including new evidence on morbidities and complications associated with hyponatremia, the importance of treating mild to moderate hyponatremia, and the efficacy and safety of vasopressin receptor antagonist therapy for hyponatremic patients. Therefore, additional guidance was deemed necessary and a panel of hyponatremia experts (which included all of the original panel members) was convened to update the previous recommendations for optimal current management of this disorder. The updated expert panel recommendations in this document represent recommended approaches for multiple etiologies of hyponatremia that are based on both consensus opinions of experts in hyponatremia and the most recent published data in this field.
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Filippatos TD, Elisaf MS. Hyponatremia in patients with heart failure. World J Cardiol 2013; 5:317-328. [PMID: 24109495 PMCID: PMC3783984 DOI: 10.4330/wjc.v5.i9.317] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Revised: 07/30/2013] [Accepted: 08/17/2013] [Indexed: 02/06/2023] Open
Abstract
The present review analyses the mechanisms relating heart failure and hyponatremia, describes the association of hyponatremia with the progress of disease and morbidity/mortality in heart failure patients and presents treatment options focusing on the role of arginine vasopressin (AVP)-receptor antagonists. Hyponatremia is the most common electrolyte disorder in the clinical setting and in hospitalized patients. Patients with hyponatremia may have neurologic symptoms since low sodium concentration produces brain edema, but the rapid correction of hyponatremia is also associated with major neurologic complications. Patients with heart failure often develop hyponatremia owing to the activation of many neurohormonal systems leading to decrease of sodium levels. A large number of clinical studies have associated hyponatremia with increased morbidity and mortality in patients hospitalized for heart failure or outpatients with chronic heart failure. Treatment options for hyponatremia in heart failure, such as water restriction or the use of hypertonic saline with loop diuretics, have limited efficacy. AVP-receptor antagonists increase sodium levels effectively and their use seems promising in patients with hyponatremia. However, the effects of AVP-receptor antagonists on hard outcomes in patients with heart failure and hyponatremia have not been thoroughly examined.
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Fluid-Volume Assessment in the Investigation of Acute Heart Failure. CURRENT EMERGENCY AND HOSPITAL MEDICINE REPORTS 2013. [DOI: 10.1007/s40138-013-0010-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Kao DP, Wagner BD, Robertson AD, Bristow MR, Lowes BD. A personalized BEST: characterization of latent clinical classes of nonischemic heart failure that predict outcomes and response to bucindolol. PLoS One 2012; 7:e48184. [PMID: 23144856 PMCID: PMC3492337 DOI: 10.1371/journal.pone.0048184] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 09/26/2012] [Indexed: 12/17/2022] Open
Abstract
Background Heart failure patients with reduced ejection fraction (HFREF) are heterogenous, and our ability to identify patients likely to respond to therapy is limited. We present a method of identifying disease subtypes using high-dimensional clinical phenotyping and latent class analysis that may be useful in personalizing prognosis and treatment in HFREF. Methods A total of 1121 patients with nonischemic HFREF from the β-blocker Evaluation of Survival Trial were categorized according to 27 clinical features. Latent class analysis was used to generate two latent class models, LCM A and B, to identify HFREF subtypes. LCM A consisted of features associated with HF pathogenesis, whereas LCM B consisted of markers of HF progression and severity. The Seattle Heart Failure Model (SHFM) Score was also calculated for all patients. Mortality, improvement in left ventricular ejection fraction (LVEF) defined as an increase in LVEF ≥5% and a final LVEF of 35% after 12 months, and effect of bucindolol on both outcomes were compared across HFREF subtypes. Performance of models that included a combination of LCM subtypes and SHFM scores towards predicting mortality and LVEF response was estimated and subsequently validated using leave-one-out cross-validation and data from the Multicenter Oral Carvedilol Heart Failure Assessment Trial. Results A total of 6 subtypes were identified using LCM A and 5 subtypes using LCM B. Several subtypes resembled familiar clinical phenotypes. Prognosis, improvement in LVEF, and the effect of bucindolol treatment differed significantly between subtypes. Prediction improved with addition of both latent class models to SHFM for both 1-year mortality and LVEF response outcomes. Conclusions The combination of high-dimensional phenotyping and latent class analysis identifies subtypes of HFREF with implications for prognosis and response to specific therapies that may provide insight into mechanisms of disease. These subtypes may facilitate development of personalized treatment plans.
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Affiliation(s)
- David P Kao
- Division of Cardiology, University of Colorado School of Medicine, Aurora, CO, USA.
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