Smita I. Negi MD, Euy-Myoung Jeong PhD, Irfan Shukrullah MBBS, Mihai Raicu MS, Samuel C. Dudley, Jr MD, PhD
{"title":"Association of Low Plasma Adiponectin With Early Diastolic Dysfunction","authors":"Smita I. Negi MD, Euy-Myoung Jeong PhD, Irfan Shukrullah MBBS, Mihai Raicu MS, Samuel C. Dudley, Jr MD, PhD","doi":"10.1111/j.1751-7133.2011.00276.x","DOIUrl":"10.1111/j.1751-7133.2011.00276.x","url":null,"abstract":"<p>Diastolic dysfunction (DD) with preserved left ventricular (LV) ejection fraction (EF) has been linked to obesity. Adiponectin is a cytokine related to obesity and obesity-linked cardiovascular complications. The authors aimed to determine the independent association of DD with adiponectin. Fifty patients with impaired relaxation DD and a normal EF and age-matched normal controls were recruited. Plasma levels of total and high molecular weight (HMW) adiponectin were measured. Mid and low molecular weight (MMW+LMW) fractions of adiponectin were calculated by subtracting HMW fraction from total adiponectin. The DD group had significantly lower total (median, 4.4 vs 12.7 μg/mL; <i>P</i>=.001), HMW fraction (median, 1.3 vs 3.4 μg/mL; <i>P</i>=.02), and MMW+LMW fraction of adiponectin (median, 3.8 vs 7.2 μg/mL; <i>P</i>=.01). Body mass index (BMI) negatively correlated with total (<i>r</i>:−0.46, <i>P</i>=.003), HMW (<i>r</i>:−0.32, <i>P</i>=.038), and MMW+LMW (<i>r</i>:−0.40, <i>P</i>=.006) fractions of adiponectin. DD had an independent association with both BMI (<i>P</i><.05) and total adiponectin (<i>P</i><.001) in linear regression model using sex, BMI, blood pressure, and total adiponectin as covariates. DD was associated with BMI (<i>P</i>=.02), HMW fraction (<i>P</i>=.03), and MMW+LMW fraction (<i>P</i>=.004) in similar linear regression analyses. Adiponectin deficiency may be one explanation for the adiposity-related cardiac oxidation known to be involved in the pathogenesis of DD.</p>","PeriodicalId":83668,"journal":{"name":"Congestive heart failure (Greenwich, Conn.)","volume":"18 4","pages":"187-191"},"PeriodicalIF":0.0,"publicationDate":"2012-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1751-7133.2011.00276.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30772504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Juan Torres-Macho PhD, Juan F. Delgado-Jiménez PhD, Javier Sanz-Salvo MD, Ana González-Mansilla PhD, Violeta Sánchez-Sánchez MD, Sergio Gámez-Díez MD, Pilar Escribano-Subías PhD, Carlos Sáenz de la Calzada PhD
{"title":"Predictors of Pulmonary Hypertension in Patients With End-Stage Heart Failure","authors":"Juan Torres-Macho PhD, Juan F. Delgado-Jiménez PhD, Javier Sanz-Salvo MD, Ana González-Mansilla PhD, Violeta Sánchez-Sánchez MD, Sergio Gámez-Díez MD, Pilar Escribano-Subías PhD, Carlos Sáenz de la Calzada PhD","doi":"10.1111/j.1751-7133.2011.00277.x","DOIUrl":"10.1111/j.1751-7133.2011.00277.x","url":null,"abstract":"<p>Pulmonary hypertension (PH) is associated with a greater mortality rate in patients with heart failure (HF) and it is a risk factor for right ventricular failure after heart transplantation. This study was designed to explore risk factors for PH development in patients with advanced heart failure and left ventricular dysfunction. In a retrospective observational study of 419 patients evaluated for heart transplantation due to end stage HF, different variables were analyzed to find predictors of PH (defined as a mean pulmonary pressure >25 mmHg), reactive PH (defined as a transpulmonary gradient >12 mmHg) and severe PH (defined as a mean pulmonary pressure >40 mmHg and/or pulmonary vascular ressistance >3 WU) using a multivariate stepwise logistic regression analysis. Prevalence of PH, out of proportion and severe PH was 62.2%, 23.8%, and 18.8% respectively. The presence of moderate-severe mitral regurgitation [2.1 (1.2–3.7); <i>P</i>=0.006], moderate-severe tricuspid regurgitation [OR 2.9 (1.3–6.4); <i>P</i>=0.005] and a duration of disease >3 years [OR 1.7 (1.1–2.7); <i>P</i>=0.03] were independent risk factors associated with PH. Moreover, the presence of a moderate-severe mitral regurgitation and a duration of disease greater than 3 years, were independent predictors of out of proportion and severe PH.</p>","PeriodicalId":83668,"journal":{"name":"Congestive heart failure (Greenwich, Conn.)","volume":"18 4","pages":"212-216"},"PeriodicalIF":0.0,"publicationDate":"2012-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1751-7133.2011.00277.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30772431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sina Dadfarmay MD, Robert Berkowitz MD, PhD, Bernard Kim MD
{"title":"Irreversible End-Stage Cardiomyopathy Following a Single Dose of Cyclophosphamide","authors":"Sina Dadfarmay MD, Robert Berkowitz MD, PhD, Bernard Kim MD","doi":"10.1111/j.1751-7133.2011.00279.x","DOIUrl":"10.1111/j.1751-7133.2011.00279.x","url":null,"abstract":"<p>Cyclophosphamide (CPA) is an alkylating agent used in a variety of chemotherapeutic regimens as well as for autoimmune disorders, the latter owing to its immunosuppressive effects. Its primary dose-limiting toxicities are bone marrow suppression and cardiomyopathy. The clinical course of CPA-induced cardiomyopathy varies widely. Most reported cases have described a transient, reversible course, similar to acute anthracycline toxicity.<sup>1</sup> However, there have been a few cases of fulminant restrictive cardiomyopathy characterized by biventricular pump failure and a rapidly fatal course.<sup>2</sup> Unlike anthracycline toxicity, in which the cumulative dose over time is the main determinant predicting the development of cardiomyopathy, the primary risk factor for CPA-induced cardiotoxicity is the total dose administered per course.<sup>3</sup> We report the case of a pulmonary hypertension patient taking long-term ambrisentan therapy who developed irreversible end-stage cardiomyopathy following a single dose of CPA at a dose well below that which has been previously reported.</p><p>A 61-year-old woman with a history of scleroderma with lung involvement and pulmonary hypertension presented with a 4-month history of worsening renal function. Her creatinine level had increased from 1.2 mg/dL to 4.5 mg/dL during this period and she experienced a gradual diminution in urine output. A renal biopsy was performed, which showed rapidly progressive crescenteric glomerulonephritis (RPGN), and she was admitted for initiation of dialysis. A routine echocardiogram done for follow-up of her pulmonary hypertension (PH) 3 weeks prior to admission showed an ejection fraction (EF) of 60%, normal diastolic function, normal chamber sizes, and a right ventricular systolic pressure (RVSP) of 27 mm Hg. The patient’s PH had been well-controlled on a regimen of sildenafil and ambrisentan and she had not experienced any signs or symptoms of right heart failure. She had no prior cardiac history nor was there a family history of cardiomyopathy. She was a nonsmoker and a nondrinker and denied any drug use.</p><p>Following the diagnosis of RPGN, the patient was given 3 days of intravenous pulse methylprednisolone (1 gm/d) and a single dose of CPA 870 mg (0.5 g/m<sup>2</sup>). Renal function did not improve despite treatment. Outpatient dialysis was initiated and the patient was subsequently discharged home on a course of prednisone.</p><p>Three weeks later, the patient was readmitted to the hospital with seizures and altered mental status secondary to steroid psychosis. Steroids were discontinued and the patient was started on phenytoin. On day 8 of admission, the patient suddenly developed respiratory distress, hypoxia (oxygen saturation 82% on room air), and metabolic acidosis (pH 7.21, bicarbonate 17). She was placed on bilevel positive airway pressure ventilation (BiPAP). Her blood pressure remained stable (130/88 mm Hg) but the patient was tachycardic (heart rate","PeriodicalId":83668,"journal":{"name":"Congestive heart failure (Greenwich, Conn.)","volume":"18 4","pages":"234-237"},"PeriodicalIF":0.0,"publicationDate":"2012-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1751-7133.2011.00279.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30772434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pierpaolo Pellicori MD, Angela Calicchia MD, Francesco Lococo MD, Giuseppe Cimino MD, Concetta Torromeo MD
{"title":"Subclinical Anthracycline Cardiotoxicity in Patients With Acute Promyelocytic Leukemia in Long-Term Remission After the AIDA Protocol","authors":"Pierpaolo Pellicori MD, Angela Calicchia MD, Francesco Lococo MD, Giuseppe Cimino MD, Concetta Torromeo MD","doi":"10.1111/j.1751-7133.2011.00278.x","DOIUrl":"10.1111/j.1751-7133.2011.00278.x","url":null,"abstract":"<p>Anthracycline chemotherapy remains a critical component of cancer treatment despite its established risk of cardiotoxicity. To investigate whether the AIDA protocol, which combines idarubicin, mitoxantrone, and all-trans retinoic acid (ATRA) for treatment of acute promyelocytic leukemia (APL) results in late cardiotoxicity, 34 APL patients in long-term remission were evaluated. The cumulative dose of idarubicin and mitoxantrone were 80 mg/m<sup>2</sup> and 50 mg/m<sup>2</sup>, respectively. Median follow-up was 7 years. Segmental wall motion abnormalities (SWMAs) were detected in 11 AIDA patients who still presented with an ejection fraction (EF) within normal limits (EF 56% in the AIDA group vs 59% in the control group, <i>P</i>=.01). However, parameters of diastolic dysfunction were significantly impaired in the AIDA group (E/A ratio: 1.04 in the AIDA group vs 1.28 in the control group, <i>P</i>=.001; E/E’ lateral ratio: 10.04 in the AIDA group vs 5.79 in the control group, <i>P</i>≤.001) as well as left atrial volume (52 mL in the AIDA group vs 35 mL in the control group, <i>P</i><.001). Cardiac toxicity due to anthracycline therapy is often frequent. Changes in diastolic function are helpful in the detection of subclinical anthracycline cardiotoxicity in long-term cardiac follow-up despite a preserved systolic ventricular function.</p>","PeriodicalId":83668,"journal":{"name":"Congestive heart failure (Greenwich, Conn.)","volume":"18 4","pages":"217-221"},"PeriodicalIF":0.0,"publicationDate":"2012-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1751-7133.2011.00278.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30772433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Comparison of 16 Weeks of Continuous vs Intermittent Exercise Training in Chronic Heart Failure Patients","authors":"Neil A. Smart PhD, Michael Steele PhD","doi":"10.1111/j.1751-7133.2011.00274.x","DOIUrl":"10.1111/j.1751-7133.2011.00274.x","url":null,"abstract":"<p>The authors compared the effects of continuous (CON) and intermittent (INT) exercise training programs on functional capacity, quality of life (QOL), and cardiac function in 23 congestive heart failure patients. Patients were randomized to CON exercise training (n=13; aged 66±7 years; peak oxygen consumption [VO<sub>2</sub>], 12.4±2.5 mL/kg/min; weight, 83±12 kg; left ventricular ejection fraction [LVEF], 29.5%±7.2%) or INT exercise training (n=10; aged 59±11 years; VO<sub>2</sub>, 12.2±6.5 mL/kg/min; weight, 87±24 kg; LVEF 27%±7.9%). These groups completed 16 weeks of stationary cycling at 70% VO<sub>2</sub> thrice weekly for 30 minutes continuously or 60 minutes (60 seconds work:60 seconds rest) intermittently; both groups completed the same absolute volume of work. Three QOL questionnaire responses, VO<sub>2</sub>, LVEF, and regional tissue Doppler were quantified. After exercise training, VO<sub>2</sub> increased by 13% in the CON group (<i>P</i>=.12) and significantly by 21% in the INT group (<i>P</i>=.03), although not significantly between the groups (<i>P</i>=.72). In the CON group, Minnesota Living With Heart Failure score improved at 16 weeks (<i>P</i>=.02), while in the INT group, Hare–Davis scores improved (<i>P</i>=.02). Cardiac volumes, resting and peak LVEF, contractile reserve, and tissue velocities were all unchanged from baseline. Intermittent exercise may improve functional capacity to a greater extent than continuous exercise. QOL changes were variable between groups. Congest Heart Fail.</p>","PeriodicalId":83668,"journal":{"name":"Congestive heart failure (Greenwich, Conn.)","volume":"18 4","pages":"205-211"},"PeriodicalIF":0.0,"publicationDate":"2011-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1751-7133.2011.00274.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30772503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}