Dirk Sander

ORCID: 0009-0004-4419-9602
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About
Contact & Profiles
Research Areas
  • Cerebrovascular and Carotid Artery Diseases
  • Acute Ischemic Stroke Management
  • Cardiovascular Health and Disease Prevention
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Blood Pressure and Hypertension Studies
  • Intracranial Aneurysms: Treatment and Complications
  • Peripheral Artery Disease Management
  • Optical Imaging and Spectroscopy Techniques
  • Cardiovascular and Diving-Related Complications
  • Stroke Rehabilitation and Recovery
  • Dementia and Cognitive Impairment Research
  • Heart Rate Variability and Autonomic Control
  • Cerebrospinal fluid and hydrocephalus
  • Neurological Disorders and Treatments
  • Antiplatelet Therapy and Cardiovascular Diseases
  • Nutritional Studies and Diet
  • Adipokines, Inflammation, and Metabolic Diseases
  • Advanced MRI Techniques and Applications
  • Clinical practice guidelines implementation
  • Cerebral Venous Sinus Thrombosis
  • Health and Medical Studies
  • Atherosclerosis and Cardiovascular Diseases
  • Medical Practices and Rehabilitation
  • Lipoproteins and Cardiovascular Health
  • Chronic Kidney Disease and Diabetes

Deutsche Lepra- und Tuberkulosehilfe
2018-2024

Technical University of Munich
2009-2023

Klinik und Poliklinik für Psychiatrie und Psychotherapie
2011-2020

Klinikum rechts der Isar
2002-2020

University Hospital Cologne
2019-2020

Sankt Gertrauden Krankenhaus
2020

Poliklinik für Endokrinologie, Diabetologie und Präventivmedizin
2019-2020

Centre de Recherche en Économie et Statistique
2018

Sorbonne Paris Cité
2018

Inserm
2018

Arterial hypertension is a major risk factor for cardiovascular damage. The results of several studies suggest that target organ damage greater in hypertensive persons with high blood pressure variability.During 3.3 years follow-up, we studied the relationship between circadian changes and progression early carotid atherosclerosis 286 patients aged >55 years. Blood patterns were evaluated long-term monitor, extent was measured as intima-media wall thickness (IMT) common artery. Patients...

10.1161/01.cir.102.13.1536 article EN Circulation 2000-09-26

Tinnitus is a common but poorly understood disorder characterized by ringing or buzzing in the ear. Central mechanisms must play crucial role generating this auditory phantom sensation as it persists most cases after severing nerve. One hypothesis states that tinnitus caused reorganization of tonotopic maps cortex, which leads to an overrepresentation frequencies. Moreover, participation limbic system has been postulated. Here we aimed at identifying brain areas display structural change...

10.1093/cercor/bhj070 article EN Cerebral Cortex 2005-11-09

Building upon the success and relevance of 2014 Magnetism Roadmap, this 2017 Roadmap edition follows a similar general layout, even if its focus is naturally shifted, different group experts and, thus, viewpoints are being collected presented. More importantly, key developments have changed research landscape in very relevant ways, so that novel view onto some most crucial warranted, article timely endeavour. The change hereby not exclusively scientific, but also reflects magnetism related...

10.1088/1361-6463/aa81a1 article EN cc-by Journal of Physics D Applied Physics 2017-08-21

To evaluate the prognostic impact of early pathologic sympathetic activation after stroke.The authors examined 112 consecutive patients (mean age, 69 years; 60 men) with their first brain infarction. A was presumed if initial norepinephrine level exceeds 300 pg/mL. In addition, involvement insular cortex, nighttime blood pressure changes, and several cardiovascular risk factors were determined. One-year outcome measures mortality rate, cerebrovascular events, activities daily living (Barthel...

10.1212/wnl.57.5.833 article EN Neurology 2001-09-11

Background and Purpose— Recent studies described an association between elevated levels of C-reactive protein (CRP) outcome after ischemic stroke. We investigated the impact early serial CRP measurements in hyperacute stroke on long-term outcome. Methods— One hundred twenty-seven consecutive patients without thrombolysis with a first no more than 12 hours symptom onset were examined. Serial done at admission (CRP 1), within 24 2), 48 3) onset. In addition to several cerebrovascular risk...

10.1161/01.str.0000029828.51413.82 article EN Stroke 2002-10-01

Background: Chemsex is defined as using substances immediately before or during sexual activities to facilitate, prolong and/or intensify experience, mainly by some communities of men who have sex with (MSM). Four are typically associated chemsex: methamphetamine, mephedrone, GHB/GBL, and ketamine. While there a lot evidence for increased prevalence HIV, sexually transmitted infections other health measures among MSM, engage in chemsex, has been little research on mental aspects. This study...

10.3389/fpsyt.2020.542301 article EN cc-by Frontiers in Psychiatry 2020-11-04

We investigated the changes of circadian blood pressure patterns after thromboembolic and hemodynamic brain infarction evaluated relation between variation, infarct location, activation autonomic nervous system stroke. Repeated 24-hour measurements were performed in 45 patients with proven first-ever infarctions different origins. Evaluation serum norepinephrine concentration, prolongation QT interval, degree cardiac arrhythmias used to determine extent sympathetic Whereas variation was...

10.1161/01.str.25.9.1730 article EN Stroke 1994-09-01

The prognostic value of cardiac troponins and natriuretic peptide in acute ischemic stroke is uncertain. We measured troponin T (cTnT), I (cTnI), N-terminal pro-brain (NT-proBNP) at admission patients without evident myocardial damage.In 174 consecutive with MRI-confirmed stroke, serial measurements cTnT, cTnI, NT-proBNP were performed 3 different time points the hyperacute phase (at admission, on days 1 2). Relation laboratory values to risk factors, subtype classification, clinical outcome...

10.1161/01.str.0000151364.19066.a1 article EN Stroke 2004-12-17

Sleep apnea syndrome may lead to changes in cerebral hemodynamics due altered alveolar ventilation. We investigated the dynamics of CO2- and blood pressure-regulated alterations flow velocities during apneic episodes evaluated CO2 reactivity different sleep stages. A computer-assisted pulsed Doppler system (2 MHz) was used for continuous overnight recordings middle artery patterns together with simultaneous polysomnography, pressure recordings, measurements end-expiratory six patients...

10.1161/01.str.23.10.1427 article EN Stroke 1992-10-01

Background. Limited data exist regarding the relationship between decreased renal function and cognitive impairment. Methods. A total of 3679 participants Intervention Project on Cerebrovascular Diseases Dementia in Community Ebersberg (INVADE) composed community-based cohort study. Measures were estimated using Cockcroft–Gault equation divided into normal, mild moderate-to-severe impaired (creatinine clearance ≥60, 45–59 <45 mL/min/1.73 m2, respectively). The main outcome measures...

10.1093/ndt/gfp230 article EN Nephrology Dialysis Transplantation 2009-05-21

Background and Purpose— There is no consensus about indicators for measuring quality of acute stroke care in Germany. Therefore, a standardized process was initiated recently to develop implement evidence-based the measurement hospital care. Methods— Quality were developed by multidisciplinary board between November 2003 December 2005. The German Stroke Registers Study Group cooperation with Society, Society Neurology, Foundation, Regional Offices Assurance other experts proven field....

10.1161/01.str.0000241086.92084.c0 article EN Stroke 2006-09-08

Aims Carotid intima media thickness (CIMT) predicts cardiovascular (CVD) events, but the predictive value of CIMT change is debated. We assessed relation between and events in individuals at high risk. Methods results From 31 cohorts with two scans (total n = 89070) on average 3.6 years apart clinical follow-up, subcohorts were drawn: (A) least 3 risk factors without previous CVD (B) carotid plaques (C) events. Cox regression models fit to estimate hazard ratio (HR) combined endpoint...

10.1371/journal.pone.0191172 article EN cc-by PLoS ONE 2018-04-12

Background In Germany, drug use in sexual settings (i.e. chemsex) among men who have sex with (MSM) has increasingly been the subject of discussion for considerable time. At same time, however, little is known about this practice. It against background that what currently chemsex MSM Germany discussed. Methods: The present study observations are essentially based on results two research projects a qualitative–explorative nature. In-depth interviews drug-using (n = 14), as well qualitative,...

10.1071/sh17142 article EN cc-by-nc-nd Sexual Health 2018-01-01
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