Urban Wiklund

Summary

Country: Sweden

Publications

  1. ncbi request reprint Wavelet decomposition of cardiovascular signals for baroreceptor function tests in pigs
    Urban Wiklund
    Department of Biomedical Engineering and Informatics, University Hospital, Umea, Sweden
    IEEE Trans Biomed Eng 49:651-61. 2002
  2. doi request reprint Abnormal heart rate variability and subtle atrial arrhythmia in patients with familial amyloidotic polyneuropathy
    Urban Wiklund
    Department of Biomedical Engineering and Informatics and Department of Radiation Sciences, Biomedical Engineering, University Hospital, Umea, Sweden
    Ann Noninvasive Electrocardiol 13:249-56. 2008
  3. doi request reprint Cardiac autonomic function does not improve after liver transplantation for familial amyloidotic polyneuropathy
    Urban Wiklund
    Department of Biomedical Engineering and Informatics, University Hospital, SE 901 85 Umea, Sweden
    Auton Neurosci 156:124-30. 2010
  4. ncbi request reprint Adaptive spatio-temporal filtering of disturbed ECGs: a multi-channel approach to heartbeat detection in smart clothing
    Urban Wiklund
    Department of Biomedical Engineering and Informatics, University Hospital, 901 85, Umea, Sweden
    Med Biol Eng Comput 45:515-23. 2007
  5. doi request reprint Influence of energy drinks and alcohol on post-exercise heart rate recovery and heart rate variability
    Urban Wiklund
    Department of Biomedical Engineering and Informatics, University Hospital, Umea, Sweden
    Clin Physiol Funct Imaging 29:74-80. 2009
  6. ncbi request reprint Classification of neck movement patterns related to whiplash-associated disorders using neural networks
    Helena Grip
    Department of Biomedical Engineering and Informatics, University Hospital, 90185 Umea, Sweden
    IEEE Trans Inf Technol Biomed 7:412-8. 2003
  7. ncbi request reprint Liver transplantation does not prevent the development of life-threatening arrhythmia in familial amyloidotic polyneuropathy, Portuguese-type (ATTR Val30Met) patients
    Rolf Hörnsten
    Department of Surgical and Perioperative Sciences, Clinical Physiology, Umea University, Umea, Sweden
    Transplantation 78:112-6. 2004
  8. doi request reprint Heart complications in familial transthyretin amyloidosis: impact of age and gender
    Rolf Hörnsten
    Department of Surgical and Perioperative Science, Umea University, Clinical Physiology, Heart Centre, Umea, Sweden
    Amyloid 17:63-8. 2010
  9. doi request reprint Outcome of heart rate variability and ventricular late potentials after liver transplantation for familial amyloidotic polyneuropathy
    Rolf Hörnsten
    Clinical Physiology, Heart Center, University Hospital, Umea, and Department of Surgical and Perioperative Sciences, Clinical Physiology, Umea University, Umea, Sweden
    Amyloid 15:187-95. 2008
  10. ncbi request reprint Electromagnetic field exposure and health among RF plastic sealer operators
    Jonna Wilén
    National Institute for Working Life, Umea, Sweden
    Bioelectromagnetics 25:5-15. 2004

Detail Information

Publications33

  1. ncbi request reprint Wavelet decomposition of cardiovascular signals for baroreceptor function tests in pigs
    Urban Wiklund
    Department of Biomedical Engineering and Informatics, University Hospital, Umea, Sweden
    IEEE Trans Biomed Eng 49:651-61. 2002
    ..In addition, the baroslopes were nearly linear when both the LF and HF components were removed using DWT decomposition...
  2. doi request reprint Abnormal heart rate variability and subtle atrial arrhythmia in patients with familial amyloidotic polyneuropathy
    Urban Wiklund
    Department of Biomedical Engineering and Informatics and Department of Radiation Sciences, Biomedical Engineering, University Hospital, Umea, Sweden
    Ann Noninvasive Electrocardiol 13:249-56. 2008
    ..We analyzed heart rate variability (HRV) in FAP patients using power spectrum analysis and Poincaré plot analysis...
  3. doi request reprint Cardiac autonomic function does not improve after liver transplantation for familial amyloidotic polyneuropathy
    Urban Wiklund
    Department of Biomedical Engineering and Informatics, University Hospital, SE 901 85 Umea, Sweden
    Auton Neurosci 156:124-30. 2010
    ..Liver transplantation is the only potentially curative treatment for familial amyloidotic polyneuropathy (FAP). We investigated cardiac autonomic function in 63 transplanted Swedish FAP patients...
  4. ncbi request reprint Adaptive spatio-temporal filtering of disturbed ECGs: a multi-channel approach to heartbeat detection in smart clothing
    Urban Wiklund
    Department of Biomedical Engineering and Informatics, University Hospital, 901 85, Umea, Sweden
    Med Biol Eng Comput 45:515-23. 2007
    ..Adaptive multi-channel spatio-temporal filtering can be used to detect heartbeats in ECGs with high noise levels. One application is heartbeat detection in noisy ECG recordings obtained by integrated textile electrodes in smart clothing...
  5. doi request reprint Influence of energy drinks and alcohol on post-exercise heart rate recovery and heart rate variability
    Urban Wiklund
    Department of Biomedical Engineering and Informatics, University Hospital, Umea, Sweden
    Clin Physiol Funct Imaging 29:74-80. 2009
    ..This study investigated changes in the electrocardiogram (ECG) and heart rate variability after intake of an energy drink, taken in combination with alcohol and exercise...
  6. ncbi request reprint Classification of neck movement patterns related to whiplash-associated disorders using neural networks
    Helena Grip
    Department of Biomedical Engineering and Informatics, University Hospital, 90185 Umea, Sweden
    IEEE Trans Inf Technol Biomed 7:412-8. 2003
    ..This shows that neck movement analysis combined with a neural network could build the basis of a decision support system for classifying suspected WAD, even though further evaluation of the method is needed...
  7. ncbi request reprint Liver transplantation does not prevent the development of life-threatening arrhythmia in familial amyloidotic polyneuropathy, Portuguese-type (ATTR Val30Met) patients
    Rolf Hörnsten
    Department of Surgical and Perioperative Sciences, Clinical Physiology, Umea University, Umea, Sweden
    Transplantation 78:112-6. 2004
    ....
  8. doi request reprint Heart complications in familial transthyretin amyloidosis: impact of age and gender
    Rolf Hörnsten
    Department of Surgical and Perioperative Science, Umea University, Clinical Physiology, Heart Centre, Umea, Sweden
    Amyloid 17:63-8. 2010
    ..These findings highlight the necessity of 24-h ECGs to detect conduction disturbances, due to their occurrence in the absence of echocardiographic evidence of amyloid deposition in the myocardium...
  9. doi request reprint Outcome of heart rate variability and ventricular late potentials after liver transplantation for familial amyloidotic polyneuropathy
    Rolf Hörnsten
    Clinical Physiology, Heart Center, University Hospital, Umea, and Department of Surgical and Perioperative Sciences, Clinical Physiology, Umea University, Umea, Sweden
    Amyloid 15:187-95. 2008
    ..If an increase of HRV after transplantation is observed, it should raise the suspicion that the patient has developed subtle atrial arrhythmia...
  10. ncbi request reprint Electromagnetic field exposure and health among RF plastic sealer operators
    Jonna Wilén
    National Institute for Working Life, Umea, Sweden
    Bioelectromagnetics 25:5-15. 2004
    ..Further, RF operators had a significantly lower heart rate (24 h registration) and more episodes of bradycardia compared to controls...
  11. ncbi request reprint Ventricular late potentials in familial amyloidotic polyneuropathy
    Rolf Hörnsten
    Clinical Physiology, Heart Centre, University Hospital, Umea, Sweden
    J Electrocardiol 39:57-62. 2006
    ..Long-term follow-up studies are required to find the prognostic significance of these new findings...
  12. ncbi request reprint Changes in heart rate variability among RF plastic sealer operators
    Jonna Wilén
    National Institute for Working Life, Umea, Sweden
    Bioelectromagnetics 28:76-9. 2007
    ..This could in turn be due to an adaptation of the thermoregulatory system and the cardiac autonomic modulation to a long-term low-level thermal exposure in the RF operators...
  13. doi request reprint Arrhythmia--a pitfall in tests of cardiac autonomic function after liver transplantation for familial amyloidotic polyneuropathy: a long-term follow-up of Swedish patients
    Rolf Hörnsten
    Department of Surgical and Perioperative Sciences, Clinical Physiology, Heart Centre, Umea University, Sweden
    Amyloid 19:81-6. 2012
    ..In the minority of patients with sinus rhythm in all recordings, cardiac autonomic modulation remained stable after transplantation and no improvement was noted...
  14. doi request reprint Blood pressure overshoot after tilt reversal in patients with familial amyloidotic polyneuropathy
    Konen Obayashi
    Department of Medicine, Umea University Hospital, Umea, Sweden
    Hypertens Res 34:133-8. 2011
    ..In addition, assessment of the post-tilt BP reaction points to possible treatment modalities for orthostatic hypotension at least in the early stages of the disease...
  15. ncbi request reprint Parasympathetic dysfunction in hypertrophic cardiomyopathy assessed by heart rate variability: comparison between short-term and 24-h measurements
    Stellan Morner
    Department of Medicine, University Hospital, Umea, Sweden
    Clin Physiol Funct Imaging 25:90-9. 2005
    ..We also show that short- and long-term methods yield similar results, suggesting that a short-term registration might be sufficient to assess HRV in patients with HCM...
  16. pmc Automatic filtering of outliers in RR intervals before analysis of heart rate variability in Holter recordings: a comparison with carefully edited data
    Marcus Karlsson
    Department of Radiation Sciences, Biomedical Engineering, and Centre of Biomedical Engineering and Physics, Umea University, Umea, Sweden
    Biomed Eng Online 11:2. 2012
    ..This study compared common frequency domain indices of HRV when determined from manually edited and automatically filtered RR intervals...
  17. ncbi request reprint Serial assessment of variability in heart rate in children with the Fontan circulation
    Annika Rydberg
    Department of Clinical Sciences, Section of Paediatric Cardiology, University Hospital, Umea, Sweden
    Cardiol Young 15:498-503. 2005
    ..Our study shows that, in patients with the Fontan circulation, routine ambulatory electrocardiographic monitoring including analysis of variability in heart rate, detects over time a progressive sympatovagal imbalance...
  18. doi request reprint Sound and vibration: effects on infants' heart rate and heart rate variability during neonatal transport
    Björn Markus Karlsson
    Department of Clinical Sciences, Umea University, Sweden
    Acta Paediatr 101:148-54. 2012
    ..To measure the effect of sound and whole-body vibration on infants' heart rate and heart rate variability during ground and air ambulance transport...
  19. doi request reprint Heart rate variability in children with Fontan circulation: lateral tunnel and extracardiac conduit
    Jenny Alenius Dahlqvist
    Department of Clinical Sciences, Umea University, Umea, Sweden
    Pediatr Cardiol 33:307-15. 2012
    ..0001), and HF (P = 0.001) compared with the control subjects. The LT and EC patients did not differ significantly. Reduced HRV was found in both the LT and EC patients. In terms of HRV reduction, EC was not superior to LT...
  20. doi request reprint Comparison of quantitative sensory testing and heart rate variability in Swedish Val30Met ATTR
    Victoria Heldestad
    Department of Pharmacology and Clinical Neurosciences, Umea University, Umea, Sweden
    Amyloid 18:183-90. 2011
    ..This is of particular importance as the phenotype of the ATTR disease varies between groups with different age of onset...
  21. ncbi request reprint Acute effects on heart rate variability when exposed to hand transmitted vibration and noise
    Bodil Björ
    Department of Public Health and Clinical Medicine, Occupational Medicine, Umea University, 901 87 Umea, Sweden
    Int Arch Occup Environ Health 81:193-9. 2007
    ..This study investigates possible acute effects on heart rate variability (HRV) when people are exposed to hand transmitted vibration and noise individually and simultaneously...
  22. ncbi request reprint Wavelet coherence detects non-autonomic heart rate fluctuations in familial amyloidotic polyneuropathy
    Nils Ostlund
    Department of Biomedical Engineering and Informatics, University Hospital, Umea, Sweden
    Conf Proc IEEE Eng Med Biol Soc 2007:4660-2. 2007
    ..The results showed that wavelet coherence is a promising method for studying respiratory related fluctuations in heart rate...
  23. doi request reprint Nondipolar content of T wave derived from a myocardial source simulation with increased repolarization inhomogeneity
    Milos Kesek
    Department of Cardiology, Heart Center, University Hospital, Umea, Sweden
    Ann Noninvasive Electrocardiol 14:185-92. 2009
    ..This computer simulation study examines the link between increased nondipolar components and increased repolarization inhomogeneity in an established model...
  24. doi request reprint Dysregulation of subcutaneous adipose tissue blood flow in overweight postmenopausal women
    Jonas Andersson
    Department of Public Health and Clinical Medicine, Umea University Hospital, Umea, Sweden
    Menopause 17:365-71. 2010
    ..The present work aimed to analyze possible changes in ATBF with being overweight and menopausal and its putative link to endothelial dysfunction and autonomic nervous system balance...
  25. doi request reprint Autonomic nerve system responses for normal and slow rewarmers after hand cold provocation: effects of long-term cold climate training
    Helge Brändström
    Department of Surgical and Perioperative Sciences, Anesthesiology and Intensive Care Medicine, Umea University, 901 87 Umea, Sweden
    Int Arch Occup Environ Health 86:357-65. 2013
    ....
  26. ncbi request reprint Heart rate variability during sedentary work and sleep in normal and sleep-deprived states
    Johannes van den Berg
    National Institute of Working Life, Umea, Sweden
    Clin Physiol Funct Imaging 25:51-7. 2005
    ..These HRV components were also significantly and negatively correlated with delta power densities. HRV does not seem to be a viable indicator of sleepiness; however, HRV may be useful for determining sleep stages...
  27. doi request reprint Fully automated on-screen carotid intima-media thickness measurement: a screening tool for subclinical atherosclerosis
    Davide Vanoli
    Heart Centre and Department of Public Health and Clinical Medicine, Umea University, Umea, Sweden
    J Clin Ultrasound 41:333-9. 2013
    ..The objective of this study was to evaluate the feasibility and reproducibility of a newly developed automated on-screen carotid ultrasound with respect to manual measurement with a conventional system...
  28. ncbi request reprint Adaptive method for assessment of cerebrospinal fluid outflow conductance
    Nina Andersson
    Department of Biomedical Engineering and Informatics, Umea University Hospital, 901 85, Umea, Sweden
    Med Biol Eng Comput 45:337-43. 2007
    ..3 +/- 5.9 min (mean +/- SD), p<0.01. The reduction of reliability in the C(out) estimation was found clinically negligible. We thus recommend this adaptive method to be used when performing constant pressure infusion tests...
  29. ncbi request reprint Chronic whiplash associated disorders and neck movement measurements: an instantaneous helical axis approach
    Fredrik Ohberg
    Department of Biomedical Engineering and Informatics, University Hospital, Umeå SE 90185, Sweden
    IEEE Trans Inf Technol Biomed 7:274-82. 2003
    ..g., angular velocity and range, symmetry of motion). Statistically significant differences were found between controls and subjects with chronic WAD in a number of variables...
  30. ncbi request reprint Holter ECG monitoring in patients with perceived electrical hypersensitivity
    Monica Sandström
    National Institute for Working Life, P O Box 7654, S 907 13, Umea, Sweden
    Int J Psychophysiol 49:227-35. 2003
    ..EHS patients had a disturbed pattern of circadian rhythms of HRV and showed a relatively 'flat' representation of hourly-recorded spectral power of the HF component of HRV...
  31. doi request reprint Increased risk of stroke in patients with coronary artery disease and sleep apnea: a 10-year follow-up
    Fredrik Valham
    Department of Respiratory Medicine, University Hospital, Umea, Sweden
    Circulation 118:955-60. 2008
    ..The effect of sleep apnea on mortality and cardiovascular morbidity is mainly unknown. We aimed to study whether sleep apnea is related to stroke, death, or myocardial infarction in patients with symptomatic coronary artery disease...
  32. ncbi request reprint EMLA cream and oral glucose for immunization pain in 3-month-old infants
    Viveca Lindh
    Department of Clinical Sciences, Pediatrics, University Hospital, Umea University, S 901 85 Umea, Sweden
    Pain 104:381-8. 2003
    ..EMLA and glucose alleviate immunization pain in 3-month-old infants...
  33. ncbi request reprint Dysregulation of the autonomic nervous system can be a link between visceral adiposity and insulin resistance
    Stina Lindmark
    Department of Medicine, Umea University Hospital, S 901 85 Umea, Sweden
    Obes Res 13:717-28. 2005
    ..To evaluate the interplay among abdominal adipose tissue distribution, the cortisol axis, the autonomic nervous system, and insulin resistance...