Per Ivarsen

ORCID: 0000-0001-9626-6070
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About
Contact & Profiles
Research Areas
  • Dialysis and Renal Disease Management
  • Vasculitis and related conditions
  • Cardiac Imaging and Diagnostics
  • Renal and Vascular Pathologies
  • Muscle metabolism and nutrition
  • Transplantation: Methods and Outcomes
  • Renal Diseases and Glomerulopathies
  • Parathyroid Disorders and Treatments
  • Blood Pressure and Hypertension Studies
  • Chronic Kidney Disease and Diabetes
  • Otitis Media and Relapsing Polychondritis
  • Bone health and osteoporosis research
  • Electrolyte and hormonal disorders
  • Renal Transplantation Outcomes and Treatments
  • Coagulation, Bradykinin, Polyphosphates, and Angioedema
  • Cardiovascular Function and Risk Factors
  • Central Venous Catheters and Hemodialysis
  • Growth Hormone and Insulin-like Growth Factors
  • Health Systems, Economic Evaluations, Quality of Life
  • Amyloidosis: Diagnosis, Treatment, Outcomes
  • Cardiovascular Health and Disease Prevention
  • Diet and metabolism studies
  • Renal function and acid-base balance
  • Metabolism and Genetic Disorders
  • Cell Adhesion Molecules Research

Aarhus University Hospital
2016-2025

Aarhus University
2006-2025

ChemoCentryx (United States)
2023

AIDS Clinical Trials Group
2015

Vejle Sygehus
2006

Mayo Clinic
2005

Regional Hospital Holstebro
1999

Frank B. Cortazar John L. Niles David Jayne Peter A. Merkel Annette Bruchfeld and 95 more Huibin Yue Thomas J. Schall Pirow Bekker Chen Au Peh Aron Chakera Bruce A. Cooper Jadadeesh Kurtkoti Daman Langguth Vicki Levidiotis G. Luxton Peter F. Mount David W. Mudge Euan Noble R. Phoon Dwarakanathan Ranganathan A. Ritchie Jessica Ryan M. Suranyi Alexander R. Rosenkranz K. Lhotta Andreas Kronbichler Nathalie Demoulin C. Bovy R. Hellemans Jean‐Michel Hougardy Ben Sprangers Katherine D. Wissing Christian Pagnoux S. Barbour Soumeya Brachemi S. Cournoyer Louis Girard Louis‐Philippe Laurin Patrick Liang David Philibert Michael Walsh Vladimı́r Tesař Radim Bečvář P. Horak Ivan Rychlík Wladimir Szpirt Hans Dieperink Jon Waarst Gregersen Per Ivarsen Elizabeth Krarup Cecilie Lyngsoe Claire Rigothier Jean‐François Augusto Alexandre Bélot Dominique Chauveau Divi Cornec Noémie Jourde‐Chiche M. Ficheux Alexandre Karras Armelle Klein F. Maurier Rafik Mesbah Olivier Moranne A. Néel T. Quéméneur David Saadoun Benjamin Terrier Philippe Zaoui Matthias Schaier Urs Benck Raoul Bergner Matthias H. Busch Jürgen Floege Franziska Grundmann Hermann Haller Marion Haubitz B. Hellmich Jörg Henes Bernd Hohenstein C. Hugo Christof Iking‐Konert Fabian Arndt Torsten Kubacki Ina Kötter Peter Lamprecht Tom H. Lindner Jan Halbritter H. Mehling Ulf Schönermarck Nils Venhoff Volker Vielhauer Oliver Witzke István Szombati G Szücs Giacomo Garibotto Federico Alberici Enrico Brunetta Lorenzo Dagna Salvatore De Vita Giacomo Emmi

In the 330-patient ADVOCATE trial of avacopan for treatment antineutrophil cytoplasmic autoantibody (ANCA)-associated vasculitis, in which 81% patients had renal involvement, estimated glomerular filtration rate (eGFR) increased on average 7.3 ml/min per 1.73 m2 group and 4.1 prednisone (P = 0.029) at week 52. This new analysis examines results patient subgroup with severe insufficiency enrollment into trial, i.e., eGFR ≤20 m2.eGFR was determined baseline over course trial. Changes were...

10.1016/j.ekir.2023.01.039 article EN cc-by-nc-nd Kidney International Reports 2023-02-03

Background. Peritoneal dialysis (PD) has become a well-established complementary alternative to haemodialysis (HD) as first-line renal replacement modality. At our department, ∼50% of the end-stage disease patients are started urgently on chronic due late referral or unexpected deterioration residual function. These patients—although suitable for PD—were previously HD via temporary central venous catheter. Since January 2000, have been offered urgent start PD right after PD-catheter...

10.1093/ndt/gfl192 article EN Nephrology Dialysis Transplantation 2006-07-01
Lynn A. Fussner Luis Felipe Flores-Suárez Rodrigo Cartin‐Ceba Ulrich Specks Gerard Cox and 95 more David Jayne Peter A. Merkel Michael Walsh Kathy Paizis Giles Walters Meg Jardine Caroline Milton Abu Ibraham Brian Siva Michael Desmond Vlado Perkovic Jadadeesh Kurtkoti Eswari Vilayur Alan Cass Shaun A. Summers Fiona G. Brown Jessica Ryan Peter G. Kerr Euan Noble Grant Luxton David W. Mudge Carmel M. Hawley David W. Johnson Chen Au Peh Randall Faull Dwarakanathan Ranganathan Lisa Jeffs Kathy Nicholls Peter Hughes Bruce A. Cooper Neil Boudville Sharon Ford Robyn Langham Donna Reidlinger Alicia T. Morrish Sunil V. Badve Elaine Pascoe Peta-Anne Paul-Brent Laura Robison Andrea Valks Daniël Blockmans Liesbet Henckaerts Ben Sprangers Rita S. Suri Soumeya Brachemi William F. Clark Amit X. Garg Simon Carette Christian Pagnoux Heather N. Reich David Barth Michael Walsh Nader Khalidi G.P. Cox Andrea Mazzetti Diane M. Robins Ron Wald Jeffrey Perl Katerina Pavenski Niki Dacouris Adeera Levin Michael A. Copland Todd Fairhead Neesh Pannu Muhammad Uwais Qarni Syed Rashid Habib Louis Girard Braden Manns Vladimı́r Tesař Zdenka Hrušková Zdeňka Chocová Johan Povlsen Jon Waarst Gregersen Per Ivarsen Henrik Birn Elizabeth Krarup E. B. Pedersen Ingrid K. Thomsen Jesper Nørgaard Bech Wladimir Szpirt Martin Egfjord Rafik Mesbah Pierre Bataille Isabelle Rey François Chantrel P Vanhille T. Quéméneur Pierre‐Louis Carron Philippe Zaoui Claire de Moreuil Morgane Gosselin Aurélien Delluc Catherine Hanrotel‐Saliou Mathilde Le Jeune Maxence Ficheux

Rationale: Diffuse alveolar hemorrhage (DAH) is a life-threatening manifestation of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). The Plasma Exchange (PLEX) and Glucocorticoids (GC) in Severe AAV (PEXIVAS;NCT00987389) trial was the largest first to enroll participants with DAH requiring mechanical ventilation. Objectives: Evaluate characteristics, treatment effects, outcomes for patients without DAH. Methods: PEXIVAS randomized 704 PLEX or no-PLEX reduced...

10.1164/rccm.202308-1426oc article EN American Journal of Respiratory and Critical Care Medicine 2024-02-12

Abstract Background Patient-reported Outcome (PRO) measures may be used as the basis for out-patient follow-up instead of fixed appointments. The patients attend from home by filling in questionnaires developed that specific aim and patient group (telePRO). are handled real time a algorithm, which assigns an outcome color reflecting clinical need. algorithms (named solutions) constructed consensus process with clinicians. We aimed to describe AmbuFlex’ telePRO solutions algorithm outcomes...

10.1007/s11136-022-03322-9 article EN cc-by Quality of Life Research 2023-01-13

A new, fast and reliable radioimmunoassay for measurement of brain natriuretic peptide (BNP) in human plasma has been developed its application is reported healthy subjects patients with congestive heart failure, chronic renal liver cirrhosis essential hypertension. The antibody was raised rabbits, the tracer made by iodogen method polyethylene glycol used separation free bound tracer. BNP extracted from using Sep-Pak C18 cartridges. recovery unlabelled added to 77.5±6.2% (mean±SD)....

10.3109/00365519709084604 article EN Scandinavian Journal of Clinical and Laboratory Investigation 1997-01-01

♦ Objective To describe basic demographics and clinical outcomes among elderly end-stage renal disease (ESRD) patients physically dependent on a caregiver maintained an assisted automated peritoneal dialysis (AAPD) program. Design Retrospective single-center study based patient records data files. Setting University Hospital. Patients 64 AAPD followed for 1.012 treatment months. Assistance care was delivered by 52 briefly trained teams of visiting nurses or nursing home staff. Result Crude...

10.1177/089686080502503s15 article EN Peritoneal Dialysis International 2005-02-01

Proteinuria is a prominent feature of chronic kidney disease. Interventions that reduce proteinuria slow the progression disease and associated risk cardiovascular Here, we propose mechanistic coupling between proprotein convertase subtilisin/kexin type 9 (PCSK9), regulator cholesterol therapeutic target in PCSK9 undergoes glomerular filtration captured by megalin, receptor responsible for driving protein reabsorption proximal tubule. Accordingly, megalin-deficient mice patients carrying...

10.1016/j.kint.2023.06.024 article EN cc-by Kidney International 2023-07-03
Vibeke Strand David Jayne Audra Horomanski Huibin Yue Pirow Bekker and 95 more Peter A. Merkel Chen Au Peh Aron Chakera Bruce A. Cooper Jagadeesh Kurtkoti Daman Langguth Vicki Levidiotis Grant Luxton Peter F. Mount David W. Mudge Euan Noble Richard Phoon Dwarakanathan Ranganathan Angus Ritchie Jessica Ryan Michael Suranyi Alexander R. Rosenkranz Karl Lhotta Andreas Kronbichler Nathalie Demoulin Christophe Bovy Rachel Hellemans Jean‐Michel Hougardy Ben Sprangers Karl Martin Wissing Christian Pagnoux Sean Barbour Soumeya Brachemi Serge Cournoyer Louis Girard Louis‐Philippe Laurin Patrick Liang David Philibert Michael Walsh Vladimı́r Tesař Radim Bečvář Pavel Hořák Ivan Rychlík Wladimir Szpirt Hans Dieperink Jon Waarst Gregersen Per Ivarsen Elizabeth Krarup Cecilie Lyngsoe Claire Rigothier Jean‐François Augusto Alexandre Bélot Dominique Chauveau Divi Cornec Noémie Jourde‐Chiche Maxence Ficheux Alexandre Karras Alexandre Klein F. Maurier Rafik Mesbah Olivier Moranne A. Néel T. Quéméneur David Saadoun Benjamin Terrier Philippe Zaoui Matthias Schaier Urs Benck Raoul Bergner Martin Busch J. Floege Franziska Grundmann Hermann Haller Marion Haubitz Bernhard Hellmich J. Henes Bernd Hohenstein Christian Hugo Christof Iking‐Konert Fabian Arndt Torsten Kubacki Ina Kötter Peter Lamprecht Tom H. Lindner Jan Halbritter Heidrun Mehling Ulf Schönermarck Nils Venhoff Volker Vielhauer Oliver Witzke István Szombati Gabriella Szűcs Giacomo Garibotto Federico Alberici Enrico Brunetta Lorenzo Dagna Salvatore De Vita Giacomo Emmi Armando Gabrielli Lucio Manenti

10.1016/s2665-9913(23)00092-9 article EN The Lancet Rheumatology 2023-07-25

Fracture risk is increased in chronic kidney disease (CKD), but assessment of bone fragility remains controversial these patients. This study investigated the associations between turnover markers, mineral density (BMD), and prevalent fracture a cohort transplantation candidates.Volumetric BMD spine hip was measured by quantitative computed tomography. Parathyroid hormone (PTH), bone-specific alkaline phosphatase, procollagen type-1 N-terminal propeptide, tartrate resistant C- telopeptides...

10.1186/s12882-017-0692-5 article EN cc-by BMC Nephrology 2017-09-06

In Denmark, outpatient follow-up for patients with chronic kidney disease (CKD) is changing from in-hospital visits toward more remote health care delivery. The nonuse of patient-reported outcomes (PROs) a well-known challenge, and it can be difficult to explain which mechanisms interventions influence the outcome. Process evaluation may, therefore, used answer important questions on how why work, aiming enhance implications clinical practice.

10.2196/48173 article EN cc-by JMIR Formative Research 2024-03-15

Animal studies have indicated that increased nitric oxide (NO) synthesis plays a significant role in the renal adaptation to sodium intake. To investigate of NO during intake humans, we studied effect acute, systemic injection N G -monomethyl-l-arginine (l-NMMA) on hemodynamics [glomerular filtration rate and plasma flow (GFR RPF, respectively)], urinary excretion (FE Na ), [mean arterial blood pressure heart (MAP HR)], levels several vasoactive hormones 12 healthy subjects high (250...

10.1152/ajprenal.1998.274.5.f914 article EN AJP Renal Physiology 1998-05-01

During fasting, a lack of GH increases protein loss by close to 50%, but the underlying mechanisms remain uncertain. The present study tests hypothesis that anabolic actions depend on mobilization lipids. Seven normal subjects were examined four occasions during 37-h fast with infusion somatostatin, insulin, and glucagon for final 15 h: 1) replacement, 2) replacement antilipolysis acipimox, 3) without antilipolysis, 4) intralipid. Urinary urea excretion, serum concentrations, muscle...

10.1210/jc.2003-030267 article EN The Journal of Clinical Endocrinology & Metabolism 2003-09-01

Thyroid hormones have significant metabolic effects, and muscle wasting weakness are prominent clinical features of chronic hyperthyroidism. To assess the underlying mechanisms, we examined seven hyperthyroid women with Graves' disease before (Ht) after (Eut) medical treatment control subjects (Ctr). All underwent a 3-h study in postabsorptive state. After regional catheterization, protein dynamics whole body forearm muscles were measured by amino acid tracer dilution technique using [ 15...

10.1152/ajpendo.00253.2004 article EN AJP Endocrinology and Metabolism 2005-01-19

A marked reduction in serum levels of bioactive insulin-like growth factor-I (IGF-I) has been observed fasting hemodialysis (HD) patients during a 4-h HD session. The aim the present study was to investigate beneficial effect hyperinsulinemia on IGF-I and inflammatory biomarkers. In randomized cross-over study, 11 non-diabetic received standardised session with either: 1) no treatment, 2) glucose infusion (10% glucose, 2.5 mL/kg/h), or 3) glucose-insulin added 30 IU NovoRapid® per litre,...

10.1186/1471-2369-14-80 article EN cc-by BMC Nephrology 2013-04-04

Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) carries a high risk of morbidity and mortality, with outcomes modified by treatment an incidence that may be increasing. We examined temporal changes in mortality during 2000-15 using nationwide healthcare registries.Patients incident AAV were identified International Classification Diseases Version 10 (ICD10) codes grouped according to inclusion year (Period 1: 2000-04, Period 2: 2005-09, 3: 2010-15). Log link...

10.1093/ndt/gfaa303 article EN Nephrology Dialysis Transplantation 2020-11-03

Background Osteoporosis is a prevalent, under-diagnosed, and treatable disease associated with increased fracture risk. Bone mineral density (BMD) derived from cardiac CT may be used to determine rate. Purpose To assess the association between rate thoracic BMD CT. Materials Methods This prospective cohort study included consecutive participants referred for evaluation of ischemic heart September 2014 March 2016. End follow-up was June 30, 2018. In all participants, volumetric three...

10.1148/radiol.2020192706 article EN Radiology 2020-07-14

Background. Aortoiliac screening before kidney transplantation is suggested by some guidelines to select patients for and assist surgical planning. We investigated the clinical outcomes of systematic aortoiliac disease in potential transplant candidates. Methods. In this observational study, 470 candidates underwent computed tomography angiography. Patients were characterized presence peripheral artery calcification iliac arteries arteries. The risk graft loss function at 1 y posttransplant...

10.1097/txd.0000000000001750 article EN cc-by-nc-nd Transplantation Direct 2025-01-23
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