J. Perkiömäki

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Heart Rate Variability and Non-Linear Dynamics in Risk Stratification

J. Perkiömäki, 2011, Front. Physio..

Cardiovascular responses to dynamic and static upper-body exercise in a cold environment in coronary artery disease patients

W. D. van Marken Lichtenbelt, C. Crandall, J. Perkiömäki, 2021, European journal of applied physiology.

Effects of controlled hypoglycaemia on cardiac repolarisation in patients with type 1 diabetes

T. Seppänen, M. Karsikas, T. Seppänen, 2008, Diabetologia.

Fractal and Complexity Measures of Heart Rate Variability

H. Huikuri, T. Mäkikallio, J. Perkiömäki, 2005, Clinical and experimental hypertension.

Association of non-shockable initial rhythm and psychotropic medication in sudden cardiac arrest

H. Huikuri, M. Junttila, J. Perkiömäki, 2020, International journal of cardiology. Heart & vasculature.

Clinical impact of evaluation of cardiovascular control by novel methods of heart rate dynamics

Roberto Maestri, Heikki V Huikuri, H. Huikuri, 2009, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences.

Early Growth Patterns and Cardiac Structure and Function at Midlife: Northern Finland 1966 Birth Cohort Study.

H. Huikuri, M. Järvelin, M. Tulppo, 2020, The Journal of pediatrics.

Commentary: Increased Beat-to-Beat Variability of T-Wave Heterogeneity Measured From Standard 12-Lead Electrocardiogram Is Associated With Sudden Cardiac Death: A Case-Control Study.

H. Huikuri, M. Tulppo, M. Junttila, 2020 .

QRS-T morphology measured from exercise electrocardiogram as a predictor of cardiac mortality.

T. Lehtimäki, T. Seppänen, H. Huikuri, 2010, Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology.

Influence of Paper Electrocardiogram Digitizing on T Wave and QRS Complex Morphology Parameters

T. Seppänen, H. Huikuri, J. Perkiömäki, 2007, Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc.

Measurement of heart rate variability by methods based on nonlinear dynamics.

Heikki V Huikuri, H. Huikuri, T. Mäkikallio, 2003, Journal of electrocardiology.

Genetic contributions to the expression of acquired causes of cardiac hypertrophy in non-ischemic sudden cardiac death victims

H. Huikuri, K. Pylkäs, R. Myerburg, 2021, Scientific Reports.

Sudden cardiac death during physical exercise: Characteristics of victims and autopsy findings

H. Huikuri, J. Junttila, J. Perkiömäki, 2015, Annals of medicine.

Risk factors of self-terminating and perpetuating ventricular tachyarrhythmias in post-infarction patients with moderately depressed left ventricular function, a CARISMA sub-analysis.

H. Huikuri, M. Messier, J. Perkiömäki, 2011, Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology.

Familial clustering of lone atrial fibrillation in patients with saddleback-type ST-segment elevation in right precordial leads.

H. Huikuri, R. Brugada, M. Junttila, 2007, European heart journal.

Heart Rate Variability: Recent Developments

J. Perkiömäki, 2002, Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc.

Nonlinear Analysis of Heart Rate Variability: Fractal and Complexity Measures of Heart Rate Behavior

H. Huikuri, T. Mäkikallio, J. Perkiömäki, 2000 .

Increasing ambulatory pulse pressure predicts the development of left ventricular hypertrophy during long-term follow-up

H. Huikuri, J. Perkiömäki, Y. Kesäniemi, 2018, Journal of Human Hypertension.

Cardiac Remodeling from Middle Age to Senescence

H. Huikuri, J. Perkiömäki, Y. Kesäniemi, 2017, Front. Physiol..

Heart Rate Turbulence and T‐Wave Alternans in Patients with Coronary Artery Disease: The Influence of Diabetes

H. Huikuri, D. Exner, J. Junttila, 2015, Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc.

Dispersion of QT interval in patients with and without susceptibility to ventricular tachyarrhythmias after previous myocardial infarction.

H V Huikuri, H. Huikuri, S. Yli‐Mäyry, 1995, Journal of the American College of Cardiology.

QT Dispersion and Mortality in the Elderly

P. Puukka, I. Räihä, L. Sourander, 2001, Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc.

Reproducibility of Minimum, Maximum and Median QT Intervals in the 12‐Lead Resting ECG

H. Huikuri, J. Perkiömäki, A. Pedersen, 2000 .

Standard 12‐Lead and 24‐Hour Ambulatory Electrocardiographic Abnormalities in Survivors of Tachyarrhythmic Cardiac Arrest

H. Huikuri, J. Perkiömäki, M. Koistinen, 1999 .

Serum PINP, PIIINP, galectin-3, and ST2 as surrogates of myocardial fibrosis and echocardiographic left venticular diastolic filling properties

H. Huikuri, M. Junttila, J. Risteli, 2015, Front. Physiol..

T‐Wave Morphology in Short QT Syndrome

T. Seppänen, H. Huikuri, R. Brugada, 2009, Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc.

Association of atrial depolarization variability and cardiac autonomic regulation with sudden cardiac death in coronary artery disease.

Tuomas V Kenttä, H. Huikuri, M. Tulppo, 2022, Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology.

Prognostic value of P-wave morphology in general population.

Tuomas V Kenttä, K. Noponen, T. Seppänen, 2022, Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology.

Association of initial recorded rhythm and underlying cardiac disease in sudden cardiac arrest.

H. Huikuri, M. Junttila, J. Perkiömäki, 2018, Resuscitation.

ECG T‐Wave Morphologic Variations Predict Ventricular Arrhythmic Risk in Low‐ and Moderate‐Risk Populations

P. Munroe, P. Lambiase, M. Orini, 2022, Journal of the American Heart Association.

Sudden cardiac death after alcohol intake: classification and autopsy findings

H. Huikuri, J. Junttila, J. Perkiömäki, 2022, Scientific Reports.

Blood alcohol levels in Finnish victims of non-ischaemic sudden cardiac death

H. Huikuri, M. Junttila, J. Perkiömäki, 2021, Annals of medicine.

Gender differences in prevalence and prognostic value of fragmented QRS complex Journal of Electrocardiology

H. Huikuri, M. Tulppo, M. Junttila, 2020 .

Plaque histology and myocardial disease in sudden coronary death: the Fingesture study

Tuomas V Kenttä, H. Huikuri, R. Myerburg, 2022, European heart journal.

Temporal Trends in the Incidence and Characteristics of Sudden Cardiac Death among Subjects under 40 Years of Age in Northern Finland during 1998–2017

H. Huikuri, J. Junttila, J. Perkiömäki, 2022, Cardiology.

Childhood growth patterns and cardiovascular autonomic modulation in midlife: Northern Finland 1966 Birth Cohort Study

H. Huikuri, M. Järvelin, M. Tulppo, 2019, International Journal of Obesity.

Association between Birth Characteristics and Cardiovascular Autonomic Function at Mid-Life

H. Huikuri, M. Järvelin, S. Keinänen-Kiukaanniemi, 2016, PloS one.

Genetic Variants Associated With Sudden Cardiac Death in Victims With Single Vessel Coronary Artery Disease and Left Ventricular Hypertrophy With or Without Fibrosis

H. Huikuri, K. Pylkäs, R. Myerburg, 2022, Frontiers in Cardiovascular Medicine.

Prognostic significance of P‐wave morphology in patients with coronary artery disease

Tuomas V Kenttä, H. Huikuri, M. Tulppo, 2019, Journal of cardiovascular electrophysiology.

Comparability of nonlinear measures of heart rate variability between long- and short-term electrocardiographic recordings.

H V Huikuri, A J Moss, A. Moss, 2001, The American journal of cardiology.

Association of sST2 and hs-CRP levels with new-onset atrial fibrillation in coronary artery disease.

H. Huikuri, J. Junttila, J. Perkiömäki, 2017, International journal of cardiology.

Heart Rate Variability Findings as a Predictor of Atrial Fibrillation in Middle‐Aged Population

H. Huikuri, M. Tulppo, J. Perkiömäki, 2014, Journal of cardiovascular electrophysiology.

Changes in cardiac repolarisation during spontaneous nocturnal hypoglycaemia in subjects with type 1 diabetes: a preliminary report

Heikki V Huikuri, H. Huikuri, P. Salmela, 2017, Acta Diabetologica.

Antiepileptic medications and the risk for sudden cardiac death caused by an acute coronary event: a prospective case-control study

H. Huikuri, M. Junttila, H. Ansakorpi, 2016, Annals of medicine.

The Prognostic Accuracy of Different QT Interval Measures

H. Huikuri, H. Elming, C. Brohet, 2001, Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc.

Long-term outcome of patients with chronotropic incompetence after an acute myocardial infarction

T. Seppänen, H. Huikuri, T. Mäkikallio, 2011, Annals of medicine.

Autonomic Cardiac Regulation During Spontaneous Nocturnal Hypoglycemia in Patients With Type 1 Diabetes

H. Huikuri, K. Airaksinen, M. Tulppo, 2012, Diabetes Care.

Prediction of sudden cardiac death: appraisal of the studies and methods assessing the risk of sudden arrhythmic death.

Heikki V Huikuri, H. Huikuri, T. Mäkikallio, 2003, Circulation.

Good safety practice in a randomized controlled trial (CadColdEx) involving increased cardiac workload in patients with coronary artery disease

J. Perkiömäki, A. Hautala, J. Jaakkola, 2019, BMC Cardiovascular Disorders.

Dietary sodium intake is associated with long-term risk of new-onset atrial fibrillation

H. Huikuri, R. Bloigu, J. Perkiömäki, 2018, Annals of medicine.

Sudden Cardiac Death in Women: Causes of Death, Autopsy Findings, and Electrocardiographic Risk Markers

H. Huikuri, R. Myerburg, M. Junttila, 2019, Circulation.

Endothelial function in response to exercise in the cold in patients with coronary artery disease

C. Crandall, J. Perkiömäki, A. Kiviniemi, 2020, Clinical physiology and functional imaging.

Heart rate variability and dispersion of QT interval in patients with vulnerability to ventricular tachycardia and ventricular fibrillation after previous myocardial infarction.

H V Huikuri, H. Huikuri, T. Mäkikallio, 1997, Journal of the American College of Cardiology.

Non-alcoholic fatty liver disease with and without metabolic syndrome: Different long-term outcomes.

Heikki Huikuri, H. Huikuri, R. Bloigu, 2017, Metabolism: clinical and experimental.

Association of Silent Myocardial Infarction and Sudden Cardiac Death.

H. Huikuri, R. Myerburg, M. Junttila, 2019, JAMA cardiology.

Sudden cardiac death after myocardial infarction in patients with type 2 diabetes.

H. Huikuri, G. Schmidt, T. Mäkikallio, 2010, Heart rhythm.

Physical Activity and the Risk for Sudden Cardiac Death in Patients With Coronary Artery Disease

H. Huikuri, M. Tulppo, M. Junttila, 2020, Circulation. Arrhythmia and electrophysiology.

Prediabetes and Risk for Cardiac Death Among Patients With Coronary Artery Disease: The ARTEMIS Study

H. Huikuri, M. Tulppo, R. Myerburg, 2019, Diabetes Care.

Type 2 diabetes and coronary artery disease: Preserved ejection fraction and sudden cardiac death.

H. Huikuri, M. Tulppo, R. Myerburg, 2018, Heart rhythm.

Biomarkers as predictors of sudden cardiac death in coronary artery disease patients with preserved left ventricular function (ARTEMIS study)

Tuomas V Kenttä, H. Huikuri, M. Tulppo, 2018, PloS one.

Effects of Physical Activity and Exercise Training on Cardiovascular Risk in Coronary Artery Disease Patients With and Without Type 2 Diabetes

H. Huikuri, M. Tulppo, M. Junttila, 2015, Diabetes Care.

Prognostic value of heart rate variability in patients with coronary artery disease in the current treatment era

H. Huikuri, M. Tulppo, M. Junttila, 2021, PloS one.

Impaired cardiac autonomic regulation and long-term risk of atrial fibrillation in patients with coronary artery disease.

H. Huikuri, M. Tulppo, J. Perkiömäki, 2017, Heart rhythm.

Fractal correlation properties of heart rate dynamics and adverse events in patients with implantable cardioverter-defibrillators.

J. Daubert, J. Couderc, J. Perkiömäki, 2001, The American journal of cardiology.

Predictors of Long‐Term Risk for Heart Failure Hospitalization after Acute Myocardial Infarction

H. Huikuri, M. Junttila, V. Jokinen, 2010, Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc.

Applying Heart Rate Variability in Clinical Practice Following Acute Myocardial Infarction

H. Huikuri, J. Perkiömäki, 2017 .

Electrocardiographic abnormalities and ventricular tachyarrhythmias after myocardial infarction

T. Seppänen, H. Huikuri, J. Perkiömäki, 2010, Scandinavian cardiovascular journal : SCJ.

Gender differences in prevalence and prognostic value of fragmented QRS complex.

H. Huikuri, M. Tulppo, M. Junttila, 2020, Journal of electrocardiology.

Fractal and complexity measures of heart rate dynamics after acute myocardial infarction.

S. Dubner, A. Bayés de Luna, P. Deedwania, 2001, The American journal of cardiology.

Frequency of sudden cardiac death among acute myocardial infarction survivors with optimized medical and revascularization therapy.

H. Huikuri, G. Schmidt, T. Mäkikallio, 2006, The American journal of cardiology.

Central aortic hemodynamics following acute lower and upper-body exercise in a cold environment among patients with coronary artery disease

C. Crandall, M. Alen, J. Perkiömäki, 2021, Scientific Reports.

Heart Rate Variability in Patients with Congenital Long QT Syndrome

Wojciech Zareba, A. Moss, W. Zareba, 2001, Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc.

Exercise capacity and heart rate responses to exercise as predictors of short-term outcome among patients with stable coronary artery disease.

H. Huikuri, M. Tulppo, M. Junttila, 2015, The American journal of cardiology.

Cardiovascular responses to cold and submaximal exercise in patients with coronary artery disease.

H. Huikuri, W. D. van Marken Lichtenbelt, C. Crandall, 2018, American journal of physiology. Regulatory, integrative and comparative physiology.

Dispersion of the QT interval and autonomic modulation of heart rate in hypertensive men with and without left ventricular hypertrophy.

H. Huikuri, A. Rantala, M. Ikäheimo, 1996, HYPERTENSION.

Temporal variability of T‐wave morphology and risk of sudden cardiac death in patients with coronary artery disease

H. Huikuri, M. Tulppo, M. Junttila, 2021, Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc.

Supraventricular premature beats and risk of new‐onset atrial fibrillation in coronary artery disease

Tuomas V Kenttä, Heikki V Huikuri, H. Huikuri, 2017, Journal of cardiovascular electrophysiology.

Prognostic significance of impaired baroreflex sensitivity assessed from Phase IV of the Valsalva maneuver in a population-based sample of middle-aged subjects.

H. Huikuri, M. Tulppo, J. Perkiömäki, 2014, The American journal of cardiology.

Coronary Artery Disease as the Cause of Sudden Cardiac Death Among Victims < 50 Years of Age.

H. Huikuri, J. Junttila, J. Perkiömäki, 2021, The American journal of cardiology.

Causes and characteristics of unexpected sudden cardiac death in octogenarians/nonagenarians

H. Huikuri, M. Junttila, J. Perkiömäki, 2023, PloS one.

Blood alcohol in victims of sudden cardiac death in northern Finland.

H. Huikuri, J. Junttila, J. Perkiömäki, 2015, Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology.

Resistin is a risk factor for all-cause mortality in elderly Finnish population: A prospective study in the OPERA cohort

M. Tulppo, J. Perkiömäki, A. Kiviniemi, 2021, PloS one.

Ambulatory Blood Pressure Characteristics and Long-Term Risk for Atrial Fibrillation

H. Huikuri, A. Kesäniemi, J. Perkiömäki, 2016, American journal of hypertension.

Ambulatory Pulse Pressure Predicts the Development of Left Ventricular Diastolic Dysfunction in Over 20 Years of Follow-up

H. Huikuri, O. Vuolteenaho, J. Perkiömäki, 2017, American journal of hypertension.

Predictors of Development of Echocardiographic Left Ventricular Diastolic Dysfunction in the Subjects Aged 40 to 59 Years (from the Oulu Project Elucidating Risk of Atherosclerosis Study).

H. Huikuri, J. Perkiömäki, Y. Kesäniemi, 2015, The American journal of cardiology.

Abdominal aorta plaques are better in predicting future cardiovascular events compared to carotid intima-media thickness: A 20-year prospective study.

M. Tulppo, J. Perkiömäki, A. Kiviniemi, 2021, Atherosclerosis.

Increased Beat-to-Beat Variability of T-Wave Heterogeneity Measured From Standard 12-Lead Electrocardiogram Is Associated With Sudden Cardiac Death: A Case–Control Study

H. Huikuri, M. Tulppo, M. Junttila, 2020, Frontiers in Physiology.

Recovery of rate-pressure product and cardiac mortality in coronary artery disease patients with type 2 diabetes.

H. Huikuri, M. Tulppo, M. Junttila, 2019, Diabetes research and clinical practice.

Leisure time and occupational physical activity, overall and cardiovascular mortality: a 24-year follow-up in the OPERA study

H. Huikuri, J. Perkiömäki, O. Ukkola, 2023, Annals of medicine.

Carotid and femoral bruits as cardiovascular risk indicators in a middle-aged Finnish population: A 20-year prospective study

M. Tulppo, J. Perkiömäki, A. Kiviniemi, 2022, PloS one.

Association of electrocardiographic spatial heterogeneity of repolarization and spatial heterogeneity of atrial depolarization with left ventricular fibrosis

H. Huikuri, M. Tulppo, M. Junttila, 2023, Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology.

Autonomic Markers as Predictors of Nonfatal Acute Coronary Events after Myocardial Infarction

H. Huikuri, K. Airaksinen, V. Jokinen, 2008, Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc.

Effect of controlled hypoglycaemia on sympathetic skin response in patients with Type 1 diabetes and control subjects

H. Huikuri, K. Airaksinen, J. Perkiömäki, 2015, Diabetic medicine : a journal of the British Diabetic Association.

Sudden cardiac death during physical exercise: Characteristics of victims and autopsy findings

H. Huikuri, J. Junttila, J. Perkiömäki, 2015, Annals of medicine.

Use of Psychotropic Medication in Victims of Sudden Cardiac Death with Nonischemic Heart Disease

H. Huikuri, M. Junttila, J. Perkiömäki, 2023, Cardiology.

Repolarization Dynamics in Patients with Long QT Syndrome

Wojciech Zareba, Arthur J Moss, Mark Andrews, 2002, Journal of cardiovascular electrophysiology.

Nonlinear Dynamics of RR Intervals

H. Huikuri, T. Mäkikallio, J. Perkiömäki, 2007 .

Adherence to exercise after an acute coronary syndrome: a 6-month randomized controlled trial

J. Perkiömäki, A. Kiviniemi, Jose Cerdán-de-Las-Heras, 2024, Frontiers in physiology.

Endothelin-1 is associated with mortality that can be attenuated with high intensity statin therapy in patients with stable coronary artery disease

H. Huikuri, M. Tulppo, J. Junttila, 2023, Communications medicine.

Characteristics of women with ischemic sudden cardiac death

H. Huikuri, M. Tulppo, M. Junttila, 2023, Annals of medicine.

H. Huikuri, M. Junttila, J. Perkiömäki, 2024, International journal of cardiology.

RISK FACTORS OF SELF-TERMINATING AND PERPETUATING VENTRICULAR TACHYARRHYTHMIAS IN POST-INFARCTION PATIENTS WITH MODERATELY DEPRESSED LEFT VENTRICULAR FUNCTION, A CARISMA SUB-ANALYSIS

H. Huikuri, M. Messier, J. Perkiömäki, 2010 .

Baroreflex sensitivity following acute upper-body exercise in the cold among stable coronary artery disease patients

M. Tulppo, J. Perkiömäki, A. Kiviniemi, 2023, Frontiers in physiology.