Sverre E. Kjeldsen

Bio: Sverre E. Kjeldsen is an academic researcher from University of Oslo. The author has contributed to research in topics: Blood pressure & Left ventricular hypertrophy. The author has an hindex of 94, co-authored 735 publications receiving 89059 citations. Previous affiliations of Sverre E. Kjeldsen include University of Michigan & Cornell University.

Organ Damage and Blood Pressure in Untreated and Treated Hypertensives

Abstract: A large number of studies in experimental animals and man show that angiotensin II, catecholamines and many other substances with cardiovascular and/or metabolic effects can favour alterations of organ function and structure independently on their ability to modify blood pressure (BP). There is, however, also a large body of evidence that these alterations are related to BP levels “per se” both in untreated and treated hypertensive patients. This chapter will offer some examples of this relationship mainly based on past work by the authors. The examples will largely focus on organ damages of more common assessment in clinical practice as well as of a more clear prognostic value, i.e. left ventricular hypertrophy, increased urinary protein excretion or reduction of glomerular filtration rate and carotid intima-media thickening or plaques. However, other types of organ damage will be also mentioned, albeit more briefly.

Cardiovascular risk stratification: an important tool for treatment to lower cardiovascular disease risk.

Abstract: Several guidelines for risk assessment and management of arterial hypertension have recently been issued such as the seventh Joint National Committee report on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC 7) and the 2003 guidelines issued jointly by the European Society of Hypertension and the European Society of Cardiology (2003 ESH/ESC) [1, 2]. The idea of global cardiovascular risk stratification in order to facilitate and improve patient management decisions, however, is not new [3]. A comprehensive method to risk-stratify patients to assess the absolute risk of major cardiovascular events based on the overall effects of risk factors, target organ damage and associated clinical conditions was introduced in the 1999 World Health Organization–International Society of Hypertension (1999 WHO/ISH) guidelines. Since then, however, additional research data, as well as reassessments of the magnitude of cardiovascular disease risk, have led to the recognition that high blood pressure and high cholesterol concentrations have much greater influence on population health than was previously recognized [4]. In fact, about 65% of stroke and almost half of cases of ischemic heart disease can be attributed to systolic blood pressure greater than 115 mmHg and total cholesterol concentration over 3.8 mmol/l [4]. Furthermore, improved surveys of various geographical areas have also demonstrated that high blood pressure and high cholesterol concentration are major risks to health in all regions of the world and not only in high income countries. In the present issue of Blood Pressure, Cuspidi and coworkers [5] have retrospectively calculated the cardiovascular risk in 425 never-treated hypertensive patients, using both the 1999 WHO/ISH and the 2003 ESH/ESC guidelines. There are several interesting findings in their report. They demonstrate that the method of risk stratification recommended by the 2003 ESH/ESC guidelines has a greater sensitivity in defining cardiovascular risk as compared to the 1999 WHO/ISH guidelines. Thus, more patients were classified as having a medium or highadded risk when the 2003 ESH/ESC guidelines were used. Dyslipidemia was the most frequent risk factor in their study population, observed in more than two-thirds of the subjects [5]. In fact, the use of dyslipidemia as a risk factor instead of only using total cholesterol values more than doubled the prevalence of lipid disorders as a risk factor. In addition, the report demonstrates that the accuracy in detecting target organ damage with cardiac and carotid ultrasound procedures and microalbuminuria determination was approximately 10-fold higher than that given by a routine investigation. Reduction of the cardiovascular risk burden attributable to hypertension, lipid disorders and microalbuminuria can be achieved in differences ways. Commonly, personal health services such as pharmacological and non-pharmacological management of high blood pressure and high cholesterol have been shown to be very effective [1, 2]. In addition, non-personal health-related intervention such as mass media messages to change perceptions of healthy diets and legalization to alter contents of processed food represents different approaches to reduce the risk of cardiovascular disease. Indeed, in a recent study [4] in various geographical areas of the world, highas well as low-income countries, a range of specified personal as well as personal health interventions to lower blood pressure as well as cholesterol concentrations was demonstrated to be very cost effective. Thus, such findings challenge the common perceptions that strategies to prevent cardiovascular disease should concern only inhabitants of wealthy countries. On the contrary, available data strongly urge for a shift in priorities as well as public health strategies also for less-developed regions and nations. Moreover, available research also set priority in development of strategies for the control of cardiovascular disease not only for doctors, but also for health policy makers in general. If we are to develop a sustainable and just global strategy for cardiovascular disease prevention, we should also embark on a discussion how allocation of resources for health promotion should be made in rich as well as poorer countries to reduce the emerging cardiovascular disease burden. In essence, in all such regions, we need to make choices to what extent allocations of fund in general should be made between competing medical therapeutic options and priorities. Regardless of highor low-income areas, increased demand, as well as introduction of newer and more expensive technologies, will influence cardiovascular risk assessment and management. A proper health economic evaluation to form a viable strategy should help us to set priorities, and make rational and morally defendable choices.

The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure: the JNC 7 report.

Abstract: "The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure" provides a new guideline for hypertension prevention and management. The following are the key messages(1) In persons older than 50 years, systolic blood pressure (BP) of more than 140 mm Hg is a much more important cardiovascular disease (CVD) risk factor than diastolic BP; (2) The risk of CVD, beginning at 115/75 mm Hg, doubles with each increment of 20/10 mm Hg; individuals who are normotensive at 55 years of age have a 90% lifetime risk for developing hypertension; (3) Individuals with a systolic BP of 120 to 139 mm Hg or a diastolic BP of 80 to 89 mm Hg should be considered as prehypertensive and require health-promoting lifestyle modifications to prevent CVD; (4) Thiazide-type diuretics should be used in drug treatment for most patients with uncomplicated hypertension, either alone or combined with drugs from other classes. Certain high-risk conditions are compelling indications for the initial use of other antihypertensive drug classes (angiotensin-converting enzyme inhibitors, angiotensin-receptor blockers, β-blockers, calcium channel blockers); (5) Most patients with hypertension will require 2 or more antihypertensive medications to achieve goal BP (<140/90 mm Hg, or <130/80 mm Hg for patients with diabetes or chronic kidney disease); (6) If BP is more than 20/10 mm Hg above goal BP, consideration should be given to initiating therapy with 2 agents, 1 of which usually should be a thiazide-type diuretic; and (7) The most effective therapy prescribed by the most careful clinician will control hypertension only if patients are motivated. Motivation improves when patients have positive experiences with and trust in the clinician. Empathy builds trust and is a potent motivator. Finally, in presenting these guidelines, the committee recognizes that the responsible physician's judgment remains paramount.

Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure

Abstract: The National High Blood Pressure Education Program presents the complete Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure. Like its predecessors, the purpose is to provide an evidence-based approach to the prevention and management of hypertension. The key messages of this report are these: in those older than age 50, systolic blood pressure (BP) of greater than 140 mm Hg is a more important cardiovascular disease (CVD) risk factor than diastolic BP; beginning at 115/75 mm Hg, CVD risk doubles for each increment of 20/10 mm Hg; those who are normotensive at 55 years of age will have a 90% lifetime risk of developing hypertension; prehypertensive individuals (systolic BP 120-139 mm Hg or diastolic BP 80-89 mm Hg) require health-promoting lifestyle modifications to prevent the progressive rise in blood pressure and CVD; for uncomplicated hypertension, thiazide diuretic should be used in drug treatment for most, either alone or combined with drugs from other classes; this report delineates specific high-risk conditions that are compelling indications for the use of other antihypertensive drug classes (angiotensin-converting enzyme inhibitors, angiotensin-receptor blockers, beta-blockers, calcium channel blockers); two or more antihypertensive medications will be required to achieve goal BP (<140/90 mm Hg, or <130/80 mm Hg) for patients with diabetes and chronic kidney disease; for patients whose BP is more than 20 mm Hg above the systolic BP goal or more than 10 mm Hg above the diastolic BP goal, initiation of therapy using two agents, one of which usually will be a thiazide diuretic, should be considered; regardless of therapy or care, hypertension will be controlled only if patients are motivated to stay on their treatment plan. Positive experiences, trust in the clinician, and empathy improve patient motivation and satisfaction. This report serves as a guide, and the committee continues to recognize that the responsible physician's judgment remains paramount.

2013 ESH/ESC Guidelines for the management of arterial hypertension: The Task Force for the management of arterial hypertension of the European Society of Hypertension (ESH) and of the European Society of Cardiology (ESC).

Abstract: ABCD : Appropriate Blood pressure Control in Diabetes ABI : ankle–brachial index ABPM : ambulatory blood pressure monitoring ACCESS : Acute Candesartan Cilexetil Therapy in Stroke Survival ACCOMPLISH : Avoiding Cardiovascular Events in Combination Therapy in Patients Living with Systolic Hypertension ACCORD : Action to Control Cardiovascular Risk in Diabetes ACE : angiotensin-converting enzyme ACTIVE I : Atrial Fibrillation Clopidogrel Trial with Irbesartan for Prevention of Vascular Events ADVANCE : Action in Diabetes and Vascular Disease: Preterax and Diamicron-MR Controlled Evaluation AHEAD : Action for HEAlth in Diabetes ALLHAT : Antihypertensive and Lipid-Lowering Treatment to Prevent Heart ATtack ALTITUDE : ALiskiren Trial In Type 2 Diabetes Using Cardio-renal Endpoints ANTIPAF : ANgioTensin II Antagonist In Paroxysmal Atrial Fibrillation APOLLO : A Randomized Controlled Trial of Aliskiren in the Prevention of Major Cardiovascular Events in Elderly People ARB : angiotensin receptor blocker ARIC : Atherosclerosis Risk In Communities ARR : aldosterone renin ratio ASCOT : Anglo-Scandinavian Cardiac Outcomes Trial ASCOT-LLA : Anglo-Scandinavian Cardiac Outcomes Trial—Lipid Lowering Arm ASTRAL : Angioplasty and STenting for Renal Artery Lesions A-V : atrioventricular BB : beta-blocker BMI : body mass index BP : blood pressure BSA : body surface area CA : calcium antagonist CABG : coronary artery bypass graft CAPPP : CAPtopril Prevention Project CAPRAF : CAndesartan in the Prevention of Relapsing Atrial Fibrillation CHD : coronary heart disease CHHIPS : Controlling Hypertension and Hypertension Immediately Post-Stroke CKD : chronic kidney disease CKD-EPI : Chronic Kidney Disease—EPIdemiology collaboration CONVINCE : Controlled ONset Verapamil INvestigation of CV Endpoints CT : computed tomography CV : cardiovascular CVD : cardiovascular disease D : diuretic DASH : Dietary Approaches to Stop Hypertension DBP : diastolic blood pressure DCCT : Diabetes Control and Complications Study DIRECT : DIabetic REtinopathy Candesartan Trials DM : diabetes mellitus DPP-4 : dipeptidyl peptidase 4 EAS : European Atherosclerosis Society EASD : European Association for the Study of Diabetes ECG : electrocardiogram EF : ejection fraction eGFR : estimated glomerular filtration rate ELSA : European Lacidipine Study on Atherosclerosis ESC : European Society of Cardiology ESH : European Society of Hypertension ESRD : end-stage renal disease EXPLOR : Amlodipine–Valsartan Combination Decreases Central Systolic Blood Pressure more Effectively than the Amlodipine–Atenolol Combination FDA : U.S. Food and Drug Administration FEVER : Felodipine EVent Reduction study GISSI-AF : Gruppo Italiano per lo Studio della Sopravvivenza nell'Infarto Miocardico-Atrial Fibrillation HbA1c : glycated haemoglobin HBPM : home blood pressure monitoring HOPE : Heart Outcomes Prevention Evaluation HOT : Hypertension Optimal Treatment HRT : hormone replacement therapy HT : hypertension HYVET : HYpertension in the Very Elderly Trial IMT : intima-media thickness I-PRESERVE : Irbesartan in Heart Failure with Preserved Systolic Function INTERHEART : Effect of Potentially Modifiable Risk Factors associated with Myocardial Infarction in 52 Countries INVEST : INternational VErapamil SR/T Trandolapril ISH : Isolated systolic hypertension JNC : Joint National Committee JUPITER : Justification for the Use of Statins in Primary Prevention: an Intervention Trial Evaluating Rosuvastatin LAVi : left atrial volume index LIFE : Losartan Intervention For Endpoint Reduction in Hypertensives LV : left ventricle/left ventricular LVH : left ventricular hypertrophy LVM : left ventricular mass MDRD : Modification of Diet in Renal Disease MRFIT : Multiple Risk Factor Intervention Trial MRI : magnetic resonance imaging NORDIL : The Nordic Diltiazem Intervention study OC : oral contraceptive OD : organ damage ONTARGET : ONgoing Telmisartan Alone and in Combination with Ramipril Global Endpoint Trial PAD : peripheral artery disease PATHS : Prevention And Treatment of Hypertension Study PCI : percutaneous coronary intervention PPAR : peroxisome proliferator-activated receptor PREVEND : Prevention of REnal and Vascular ENdstage Disease PROFESS : Prevention Regimen for Effectively Avoiding Secondary Strokes PROGRESS : Perindopril Protection Against Recurrent Stroke Study PWV : pulse wave velocity QALY : Quality adjusted life years RAA : renin-angiotensin-aldosterone RAS : renin-angiotensin system RCT : randomized controlled trials RF : risk factor ROADMAP : Randomized Olmesartan And Diabetes MicroAlbuminuria Prevention SBP : systolic blood pressure SCAST : Angiotensin-Receptor Blocker Candesartan for Treatment of Acute STroke SCOPE : Study on COgnition and Prognosis in the Elderly SCORE : Systematic COronary Risk Evaluation SHEP : Systolic Hypertension in the Elderly Program STOP : Swedish Trials in Old Patients with Hypertension STOP-2 : The second Swedish Trial in Old Patients with Hypertension SYSTCHINA : SYSTolic Hypertension in the Elderly: Chinese trial SYSTEUR : SYSTolic Hypertension in Europe TIA : transient ischaemic attack TOHP : Trials Of Hypertension Prevention TRANSCEND : Telmisartan Randomised AssessmeNt Study in ACE iNtolerant subjects with cardiovascular Disease UKPDS : United Kingdom Prospective Diabetes Study VADT : Veterans' Affairs Diabetes Trial VALUE : Valsartan Antihypertensive Long-term Use Evaluation WHO : World Health Organization ### 1.1 Principles The 2013 guidelines on hypertension of the European Society of Hypertension (ESH) and the European Society of Cardiology …

The Design and Analysis of Experiments

Abstract: THE DESIGN AND ANALYSIS OF EXPERIMENTS. By Oscar Kempthorne. New York, John Wiley and Sons, Inc., 1952. 631 pp. $8.50. This book by a teacher of statistics (as well as a consultant for \"experimenters\") is a comprehensive study of the philosophical background for the statistical design of experiment. It is necessary to have some facility with algebraic notation and manipulation to be able to use the volume intelligently. The problems are presented from the theoretical point of view, without such practical examples as would be helpful for those not acquainted with mathematics. The mathematical justification for the techniques is given. As a somewhat advanced treatment of the design and analysis of experiments, this volume will be interesting and helpful for many who approach statistics theoretically as well as practically. With emphasis on the \"why,\" and with description given broadly, the author relates the subject matter to the general theory of statistics and to the general problem of experimental inference. MARGARET J. ROBERTSON