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Non-invasive measurement of right atrial pressure by near-infrared spectroscopy: preliminary experience. A report from the SICA-HF study (2017)
Journal Article
Pellicori, P., Clark, A. L., Kallvikbacka-Bennett, A., Zhang, J., Urbinati, A., Monzo, L., Dierckx, R., Anker, S. D., & Cleland, J. G. (2017). Non-invasive measurement of right atrial pressure by near-infrared spectroscopy: preliminary experience. A report from the SICA-HF study. European journal of heart failure, 19(7), 883-892. https://doi.org/10.1002/ejhf.825

Background: Jugular venous distension, reflecting raised right atrial pressure (RAP), is a classical sign of congestive heart failure (CHF), but its clinical assessment can be difficult. Methods: RAP was measured non-invasively using near-infrared sp... Read More about Non-invasive measurement of right atrial pressure by near-infrared spectroscopy: preliminary experience. A report from the SICA-HF study.

The effects of short-term omission of daily medication on the pathophysiology of heart failure (2017)
Journal Article
Dovancescu, S., Pellicori, P., Mabote, T., Torabi, A., Clark, A. L., & Cleland, J. G. (2017). The effects of short-term omission of daily medication on the pathophysiology of heart failure. European journal of heart failure, 19(5), 643-649. https://doi.org/10.1002/ejhf.748

Aims Pharmacological therapies for heart failure (HF) aim to improve congestion, symptoms, and prognosis. Failing to take medication is a potential cause of worsening HF. Characterizing the effects of short-term medication omission could inform the d... Read More about The effects of short-term omission of daily medication on the pathophysiology of heart failure.

Statins attenuate but do not eliminate the reverse epidemiology of total serum cholesterol in patients with non-ischemic chronic heart failure (2017)
Journal Article
Fröhlich, H., Raman, N., Täger, T., Schellberg, D., Goode, K. M., Kazmi, S., Grundtvig, M., Hole, T., Cleland, J. G., Katus, H. A., Agewall, S., Clark, A. L., Atar, D., & Frankenstein, L. (2017). Statins attenuate but do not eliminate the reverse epidemiology of total serum cholesterol in patients with non-ischemic chronic heart failure. International journal of cardiology, 238, 97-104. https://doi.org/10.1016/j.ijcard.2017.03.028

© 2017 Elsevier B.V. Background In patients with chronic heart failure (CHF) increasing levels of total serum cholesterol are associated with improved survival – while statin usage is not. The impact of statin treatment on the “reverse epidemiology”... Read More about Statins attenuate but do not eliminate the reverse epidemiology of total serum cholesterol in patients with non-ischemic chronic heart failure.

What proportion of patients with chronic heart failure are eligible for sacubitril-valsartan? (2017)
Journal Article
Pellicori, P., Urbinati, A., Shah, P., MacNamara, A., Kazmi, S., Dierckx, R., Zhang, J., Cleland, J. G., & Clark, A. L. (2017). What proportion of patients with chronic heart failure are eligible for sacubitril-valsartan?. European journal of heart failure, 19(6), 768-778. https://doi.org/10.1002/ejhf.788

Aims The PARADIGM-HF trial showed that sacubitril–valsartan, an ARB–neprilysin inhibitor, is more effective than enalapril for some patients with heart failure (HF). It is uncertain what proportion of patients with HF would be eligible for sacubitril... Read More about What proportion of patients with chronic heart failure are eligible for sacubitril-valsartan?.

Exploring the relation between changes in NT-proBNP and renal function in patients with suspected heart failure using structural equation modelling (2017)
Journal Article
Zhang, J., Wong, K., Clark, A. L., & Cleland, J. G. (2017). Exploring the relation between changes in NT-proBNP and renal function in patients with suspected heart failure using structural equation modelling. International journal of cardiology, 233, 67-72. https://doi.org/10.1016/j.ijcard.2017.01.127

Background The relation between changes in NT-proBNP and renal function has commonly been studied using multiple regressions, which may ignore the complexity of relations between related variables. Methods and results Data were collected from patient... Read More about Exploring the relation between changes in NT-proBNP and renal function in patients with suspected heart failure using structural equation modelling.

Internet-based training of coronary artery patients: the Heart Cycle Trial (2016)
Journal Article
Skobel, E., Knackstedt, C., Martinez-Romero, A., Salvi, D., Vera-Munoz, C., Napp, A., Luprano, J., Bover, R., Glöggler, S., Bjarnason-Wehrens, B., Marx, N., Rigby, A., & Cleland, J. (2017). Internet-based training of coronary artery patients: the Heart Cycle Trial. Heart and vessels, 32(4), 408-418. https://doi.org/10.1007/s00380-016-0897-8

© 2016, Springer Japan. Low adherence to cardiac rehabilitation (CR) might be improved by remote monitoring systems that can be used to motivate and supervise patients and tailor CR safely and effectively to their needs. The main objective of this st... Read More about Internet-based training of coronary artery patients: the Heart Cycle Trial.

Prevalence and outcomes of anemia and hematinic deficiencies in patients with chronic heart failure (2016)
Journal Article
Cleland, J. G., Zhang, J., Pellicori, P., Dicken, B., Dierckx, R., Shoaib, A., Wong, K., Rigby, A., Goode, K., & Clark, A. L. (2016). Prevalence and outcomes of anemia and hematinic deficiencies in patients with chronic heart failure. JAMA Cardiology, 1(5), 539-547. https://doi.org/10.1001/jamacardio.2016.1161

Copyright © 2016 American Medical Association. All rights reserved. Importance: Detailed information on the prevalence, associations, and consequences of anemia and iron deficiency in epidemiologically representative outpatients with chronic heart fa... Read More about Prevalence and outcomes of anemia and hematinic deficiencies in patients with chronic heart failure.

Exploring quality of life in patients with and without heart failure (2015)
Journal Article
Zhang, J., Hobkirk, J., Carroll, S., Pellicori, P., Clark, A. L., & Cleland, J. G. (2016). Exploring quality of life in patients with and without heart failure. International journal of cardiology, 202, 676-684. https://doi.org/10.1016/j.ijcard.2015.09.076

Aims The EuroHeart Failure Survey Questionnaire (EHFSQ-1) has 39 questions on symptoms and quality of life (QoL); many items are related. We sought to identify underlying clusters amongst EHFSQ-1 questions, construct an overall “QoL score” and invest... Read More about Exploring quality of life in patients with and without heart failure.

Development of a human model for the study of effects of hypoxia, exercise, and sildenafil on cardiac and vascular function in chronic heart failure (2015)
Journal Article
Damy, T., Hobkirk, J., Walters, M., Ciobanu, A., Rigby, A. S., Kallvikbacka-Bennett, A., Guellich, A., Dubois-Rande, J.-L., Hittinger, L., Clark, A. L., & Cleland, J. G. F. (2015). Development of a human model for the study of effects of hypoxia, exercise, and sildenafil on cardiac and vascular function in chronic heart failure. Journal of Cardiovascular Pharmacology, 66(3), 229-238. https://doi.org/10.1097/fjc.0000000000000262

Background: Pulmonary hypertension is associated with poor outcome in patients with chronic heart failure (CHF) and may be a therapeutic target. Our aims were to develop a noninvasive model for studying pulmonary vasoreactivity in CHF and characteriz... Read More about Development of a human model for the study of effects of hypoxia, exercise, and sildenafil on cardiac and vascular function in chronic heart failure.

Prognostic significance of ultrasound-assessed jugular vein distensibility in heart failure (2015)
Journal Article
Pellicori, P., Kallvikbacka-Bennett, A., Dierckx, R., Zhang, J., Putzu, P., Cuthbert, J., Boyalla, V., Shoaib, A., Clark, A. L., & Cleland, J. G. (2015). Prognostic significance of ultrasound-assessed jugular vein distensibility in heart failure. Heart, 101(14), 1149-1158. https://doi.org/10.1136/heartjnl-2015-307558

Aims: Jugular venous distension is a classical sign of heart failure (HF) but it can be difficult to assess clinically. Methods and results: Outpatients with HF and control subjects were assessed. Internal jugular vein diameter ( JVD) was measured us... Read More about Prognostic significance of ultrasound-assessed jugular vein distensibility in heart failure.

Prescribing patterns to optimize heart rate. Analysis of 1,000 consecutive outpatient appointments toasingle heart failure clinic over a 6-month period. (2015)
Journal Article
Dierckx, R., Cleland, J. G., Parsons, S., Putzu, P., Pellicori, P., Dicken, B., Boyalla, V., & Clark, A. L. (2015). Prescribing patterns to optimize heart rate. Analysis of 1,000 consecutive outpatient appointments toasingle heart failure clinic over a 6-month period. JACC: Heart Failure, 3(3), 224-230. https://doi.org/10.1016/j.jchf.2014.11.003

Objectives: This study sought to characterize patients attending a community heart failure (HF) clinic and identified those who were eligible for optimization of beta-blockers (BB) or ivabradine. Background: Among patients with HF due to left ventric... Read More about Prescribing patterns to optimize heart rate. Analysis of 1,000 consecutive outpatient appointments toasingle heart failure clinic over a 6-month period..

Efficacy of β blockers in patients with heart failure plus atrial fibrillation: An individual-patient data meta-analysis (2014)
Journal Article
Kotecha, D., Holmes, J., Krum, H., Altman, D. G., Manzano, L., Cleland, J. G., Lip, G. Y., Coats, A. J., Andersson, B., Kirchhof, P., Von Lueder, T. G., Wedel, H., Rosano, G., Shibata, M. C., Rigby, A., & Flather, M. D. (2014). Efficacy of β blockers in patients with heart failure plus atrial fibrillation: An individual-patient data meta-analysis. Lancet, 384(9961), 2235-2243. https://doi.org/10.1016/S0140-6736%2814%2961373-8

Background: Atrial fibrillation and heart failure often coexist, causing substantial cardiovascular morbidity and mortality. β blockers are indicated in patients with symptomatic heart failure with reduced ejection fraction; however, the efficacy of... Read More about Efficacy of β blockers in patients with heart failure plus atrial fibrillation: An individual-patient data meta-analysis.

Effects of reducing inspired oxygen concentration for one hour in patients with chronic heart failure: implications for air travel (2013)
Journal Article
Hobkirk, J. P., Damy, T., Walters, M., Bennett, A., Smith, S. J., Ingle, L., Clark, A. L., & Cleland, J. G. (2013). Effects of reducing inspired oxygen concentration for one hour in patients with chronic heart failure: implications for air travel. European journal of heart failure, 15(5), 505-510. https://doi.org/10.1093/eurjhf/hft003

AimsThe objective of this study was to establish the acute effects of hypoxia on clinical, spirometric, haemodynamic, and echocardiographic variables. Reducing inspired oxygen to 15%, as experienced during commercial air travel, decreases arterial ox... Read More about Effects of reducing inspired oxygen concentration for one hour in patients with chronic heart failure: implications for air travel.

Abnormalities of the ventilatory equivalent for carbon dioxide in patients with chronic heart failure (2012)
Journal Article
Ingle, L., Sloan, R., Carroll, S., Goode, K., Cleland, J. G., & Clark, A. L. (2012). Abnormalities of the ventilatory equivalent for carbon dioxide in patients with chronic heart failure. Pulmonary Medicine, 2012, 589164. https://doi.org/10.1155/2012/589164

Introduction. The relation between minute ventilation (VE) and carbon dioxide production (VCO(2)) can be characterised by the instantaneous ratio of ventilation to carbon dioxide production, the ventilatory equivalent for CO(2) (VEqCO(2)). We hypothe... Read More about Abnormalities of the ventilatory equivalent for carbon dioxide in patients with chronic heart failure.

Minimally clinically important difference in chronic breathlessness: every little helps (2012)
Journal Article
Oxberry, S. G., Bland, J. M., Clark, A. L., Cleland, J. G., & Johnson, M. (2012). Minimally clinically important difference in chronic breathlessness: every little helps. American Heart Journal, 164(2), 229-235. https://doi.org/10.1016/j.ahj.2012.05.003

ObjectivesThe aim of the study was to determine the minimally clinically important difference (MCID) for breathlessness due to chronic heart failure (CHF). BackgroundThe measurement of breathlessness is difficult because it is subjective and multifac... Read More about Minimally clinically important difference in chronic breathlessness: every little helps.

A comparative study of missing value imputation with multiclass classification for clinical heart failure data (2012)
Presentation / Conference Contribution
Zhang, Y., Kambhampati, C., Davis, D. N., Goode, K., & Cleland, J. G. F. A comparative study of missing value imputation with multiclass classification for clinical heart failure data. Presented at 2012 9th International Conference on Fuzzy Systems and Knowledge Discovery

Clinical data often contains missing values. Imputation is one of the best known schemes to overcome the drawbacks associated with missing values in data mining tasks. In this work, we compared several imputation methods and analyzed their performanc... Read More about A comparative study of missing value imputation with multiclass classification for clinical heart failure data.

Prevalence of, associations with, and prognostic value of tricuspid annular plane systolic excursion (TAPSE) among out-patients referred for the evaluation of heart failure (2012)
Journal Article
Damy, T., Kallvikbacka-Bennett, A., Goode, K., Khaleva, O., Lewinter, C., Hobkirk, J., Nikitin, N. P., Dubois-Randé, J.-L., Hittinger, L., Clark, A. L., & Cleland, J. G. F. (2012). Prevalence of, associations with, and prognostic value of tricuspid annular plane systolic excursion (TAPSE) among out-patients referred for the evaluation of heart failure. Journal of cardiac failure, 18(3), 216-225. https://doi.org/10.1016/j.cardfail.2011.12.003

Background: Prevalence, predictors, and prognostic value of right ventricular (RV) function measured by the tricuspid annular plane systolic excursion (TAPSE) in patients with chronic heart failure (CHF) symptoms with a broad range of left ventricula... Read More about Prevalence of, associations with, and prognostic value of tricuspid annular plane systolic excursion (TAPSE) among out-patients referred for the evaluation of heart failure.

Does the physical examination still have a role in patients with suspected heart failure? (2011)
Journal Article
Damy, T., Kallvikbacka-Bennett, A., Zhang, J., Goode, K., Buga, L., Hobkirk, J., Yassin, A., Dubois-Randé, J.-L., Hittinger, L., Cleland, J. G. F., & Clark, A. L. (2011). Does the physical examination still have a role in patients with suspected heart failure?. European journal of heart failure, 13(12), 1340-1348. https://doi.org/10.1093/eurjhf/hfr128

AIMS: The prognostic value of signs of congestion in patients suspected of having chronic heart failure (CHF) is unknown. Our objectives were to define their prevalence and specificity in diagnosing CHF and to determine their prognostic value in pati... Read More about Does the physical examination still have a role in patients with suspected heart failure?.