Timofey Kondratyev
Senioringeniør
Stillingsbeskrivelse
Arbeid med eksperimentelle dyremodeller, laboratoriedrift, opplæring av stipendiater ved Akuttmedisin og anestesiologi forskningsgruppe, data og prøveanalyse.
Arbeidsområder
Joar O. Nivfors,
Rizwan Mohyuddin,
Torstein Schanche,
Jan Harald Nilsen,
Sergey Valkov,
Timofey Kondratyev,
Gary C. Sieck,
Torkjel Tveita:
Rewarming With Closed Thoracic Lavage Following 3-h CPR at 27°C Failed to Reestablish a Perfusing Rhythm
Frontiers in Physiology 2021 Ekstern lenke
Svein E. Gaustad,
Timofey Kondratyev,
Ingrid Eftedal,
Torkjel Tveita:
Effects of Cold Decompression on Hemodynamic Function and Decompression Sickness Risk in a Dry Diving Rat Model
Frontiers in Physiology 2021 Ekstern lenke
Anders Lund Selli,
Adrina Kalasho Kuzmiszyn,
Natalia Smaglyukova,
Timofey Kondratyev,
Ole Martin Fuskevåg,
Roy Andre Lyså,
Aina Westrheim Ravna,
Torkjel Tveita,
Georg Sager,
Erik Sveberg Dietrichs:
Treatment of cardiovascular dysfunction with PDE5-inhibitors - temperature dependent effects on transport and metabolism of cAMP and cGMP
Frontiers in Physiology 2021 Ekstern lenke
Rizwan Mohyuddin,
Erik Sveberg Dietrichs,
Predip Sundaram,
Timofey Kondratyev,
Marie Figenschou,
Gary C. Sieck,
Torkjel Tveita:
Cardiovascular Effects of Epinephrine During Experimental Hypothermia (32°C) With Spontaneous Circulation in an Intact Porcine Model
Frontiers in Physiology 2021 Ekstern lenke
Jan Harald Nilsen,
Torstein Lindahl Schanche,
Sergey Valkov,
Rizwan Mohyuddin,
Brage Håheim,
Timofey Kondratyev,
Torvind Næsheim,
Gary C. Sieck,
Torkjel Tveita:
Effects of rewarming with extracorporeal membrane oxygenation to restore oxygen transport and organ blood flow after hypothermic cardiac arrest in a porcine model
Scientific Reports 23. september 2021 Ekstern lenke
Erik Sveberg Dietrichs,
Anders Lund Selli,
Timofey Kondratyev,
Karen McGlynn,
Godfrey L Smith,
Torkjel Tveita:
Resistance to ventricular fibrillation predicted by the QRS/QTc - ratio in an intact rat model of hypothermia/rewarming
Cryobiology 2021 Ekstern lenke
Jan Harald Nilsen,
Torstein Schanche,
Timofey Kondratyev,
Olav Hevrøy,
Gary C. Sieck,
Torkjel Tveita:
Maintaining intravenous volume mitigates hypothermia-induced myocardial dysfunction and accumulation of intracellular Ca2+
Experimental Physiology 2021 Ekstern lenke
Brage Håheim,
Timofey Kondratyev,
Erik Sveberg Dietrichs,
Torkjel Tveita:
Comparison between two pharmacologic strategies to alleviate rewarming shock: vasodilation vs. inodilation
Frontiers in medicine 2020 Ekstern lenke
Jan Harald Nilsen,
Sergey Valkov,
Rizwan Mohyuddin,
Torstein Lindahl Schanche,
Timofey Kondratyev,
Torvind Næsheim,
Gary C. Sieck,
Torkjel Tveita:
Study of the effects of 3 h of continuous cardiopulmonary resuscitation at 27°C on global oxygen transport and organ blood flow
Frontiers in Physiology 2020 Ekstern lenke
Svein Erik Gaustad,
Timofey Kondratyev,
Ingrid Eftedal,
Torkjel Tveita:
Continuous Hemodynamic Monitoring in an Intact Rat Model of Simulated Diving
Frontiers in Physiology 13. januar 2020 Ekstern lenke
Torstein Lindahl Schanche,
Timofey Kondratyev,
Torkjel Tveita:
Extracorporeal rewarming from experimental hypothermia: Effects of hydroxyethyl starch versus saline priming on fluid balance and blood flow distribution
Experimental Physiology 2019 Ekstern lenke
Vladimir Kuklin,
Nurlan Akhatov,
Timofey Kondratyev,
Aidos Konkaev,
Abay K. Baigenzhin,
Maya Konkaeva,
Temirlan Karibekov,
Nicholas Barlow,
Torkjel Tveita,
Vegard Dahl:
The influences of morphine or ketamine pre-treatment on hemodynamic, acid-base status, biochemical markers of brain damage and early survival in rats after asphyxial cardiac arrest
BMC Anesthesiology 2019 Ekstern lenke
Sergey Valkov,
Rizwan Mohyuddin,
Jan Harald Nilsen,
Torstein Lindahl Schanche,
Timofey Kondratyev,
Gary C. Sieck,
Torkjel Tveita:
Organ blood flow and O2 transport during hypothermia (27°C) and rewarming in a pig model
Experimental Physiology 29. oktober 2018 Ekstern lenke
Erik Sveberg Dietrichs,
Brage Håheim,
Timofey Kondratyev,
Erik R. Traasdahl,
Torkjel Tveita:
Effects of hypothermia and rewarming on cardiovascular autonomic control in vivo
Journal of applied physiology 2018 Ekstern lenke
Brage Håheim,
Timofey Kondratyev,
Erik Sveberg Dietrichs,
Torkjel Tveita:
The beneficial hemodynamic effects of afterload reduction by sodium nitroprusside during rewarming from experimental hypothermia
Cryobiology 2017 Ekstern lenke
Kathrine Halsøy,
Timofey Kondratyev,
Torkjel Tveita,
Lars J. Bjertnaes:
Effects of Constant Flow vs. Constant Pressure Perfusion on Fluid Filtration in Severe Hypothermic Isolated Blood-Perfused Rat Lungs
Frontiers in medicine 2016 Ekstern lenke
Erik Sveberg Dietrichs,
Torstein Schanche,
Timofey Kondratyev,
Svein Erik Gaustad,
Georg Sager,
Torkjel Tveita:
Negative inotropic effects of epinephrine in the presence of increased β-adrenoceptor sensitivity during hypothermia in a rat model
Cryobiology 2015 Ekstern lenke
Erik Sveberg Dietrichs,
Brage Håheim,
Timofey Kondratyev,
Gary C. Sieck,
Torkjel Tveita:
Cardiovascular effects of levosimendan during rewarming from hypothermia in rat
Cryobiology 30. september 2014 Ekstern lenke
Erik Sveberg Dietrichs,
Timofey Kondratyev,
Torkjel Tveita:
Milrinone ameliorates cardiac mechanical dysfunction after hypothermia in an intact rat model
Cryobiology 2014 Ekstern lenke
Ragnhild Margrete Wold,
Timofey Kondratyev,
Torkjel Tveita:
Myocardial calcium overload during graded hypothermia and after rewarming in an in vivo rat model
Acta Physiologica 2013 Ekstern lenke
Evgeny Suborov,
Alexey Anatolievich Smetkin,
Timofey Kondratyev,
Andrey Yurjevich Valkov,
Vsevolod Kuzkov,
Mikhail Kirov,
Lars J. Bjertnaes:
Inhibitor of neuronal nitric oxide synthase improves gas exchange in ventilator-induced lung injury after pneumonectomy
BMC Anesthesiology 2012 Ekstern lenke
Ole Magnus Filseth,
Ole-Jakob How,
Timofey Kondratyev,
Tor Magne Gamst,
Georg Sager,
Torkjel Tveita:
Changes in cardiovascular effects of dopamine in response to graded hypothermia in vivo
Critical Care Medicine 2012 Ekstern lenke
Assami Rösner,
Ole-Jakob How,
Erling Johan Aarsæther,
Thor Allan Stenberg,
Thomas Vennø Andreasen,
Timofei Kondratiev,
Terje Larsen,
Truls Myrmel:
High Resolution Speckle Tracking Dobutamine Stress Echocardiography Reveals Heterogeneous Responses in Different Myocardial Layers: Implication for Viability Assessments
Journal of the American Society of Echocardiography 2010 Ekstern lenke
Ole Magnus Filseth,
Ole-Jakob How,
Timofei Kondratiev,
Tor Magne Gamst,
Torkjel Tveita:
Post-hypothermic cardiac left ventricular systolic dysfunction after rewarming in an intact pig model
Critical Care 2010 Ekstern lenke
ys han,
Torkjel Tveita,
Timofei Kondratiev,
y s prakash,
GC Sieck:
changes in cardiovascular beta-adrenoceptor responses during hypothermia
Cryobiology 2008
Timofei Kondratiev,
Ragnhild Margrete Wold,
Ellen Aasum,
Torkjel Tveita:
Myocardial mechanical dysfunction and calcium overload following rewarming from experimental hypothermia in vivo
Cryobiology 2008 Ekstern lenke
Timofei Kondratiev,
Torkjel Tveita:
Effects of sympathetic stimulation during cooling on hypothermic as well as posthypothermic hemodynamic function
Canadian Journal of Physiology and Pharmacology 2006 Ekstern lenke
Timofei Kondratiev,
Kristina Flemming,
Eivind S. P. Myhre,
Mikhail Sovershaev,
Torkjel Tveita:
Is oxygen supply a limiting factor for survival during rewarming from profound hypothermia?
American Journal of Physiology. Heart and Circulatory Physiology 2006
Elena Egorina,
Mikhail Sovershaev,
Timofei Kondratiev,
Jan Ole Olsen,
Torkjel Tveita,
Bjarne Østerud:
Induction of monocytic TF expression after rewarming from hypothermia in vivo is counteracted by heat shock in c-Jun-dependent manner
Arteriosclerosis, Thrombosis and Vascular Biology 2006
Timofei Kondratiev,
Eivind S.P. Myhre,
Øystein Thunheim Simonsen,
Tor-Bjarne Nymark,
Torkjel Tveita:
Cardiovascular effects of epinephrine during rewarming from hypothermia in an intact animal model
Journal of applied physiology 2006 Ekstern lenke
Vladimir Kuklin,
Timofey Kondratyev,
Maya Konkaeva,
Nurlan Akhatov,
MA Sovershaev,
Aidos Konkaev,
Torkjel Tveita,
Vegard Dahl:
EFFECTS OF MORPHINE OR KETAMINE IN RATS WITH ASPHYXIAL CARDIAC ARREST: THE RESULTS OF PILOT STUDY
2017
Vladimir Kuklin,
Timofey Kondratyev,
Maya Konkayeva,
Nurlan Akhatov,
Mikhail Sovershaev,
Aidos Konkayev,
Torkjel Tveita,
Vegard Dahl:
Effects of morphine or ketamine in rats with asphyxial cardiac arrest: a pilot study
2017 Ekstern lenke
Ole-Jakob How,
Torvind Næsheim,
Jens Petter Bakkehaug,
Timofey Kondratyev,
Espen W. Remme,
Truls Myrmel:
Elevated preload is critical for synchronization of myocardial lengthening (e) and mitral inflow (E) in acute ischemic acute heart failure
The FASEB Journal 2013
Ole magnus Filseth,
Ole-Jakob How,
Timofei Kondratiev,
Tor Magne Gamst,
Torkjel Tveita:
CARDIAC FUNCTION DURING SEVERE IMMERSION HYPOTHERMIA AND REWARMING IN PIGS
Intensive Care Medicine 2010
OM Filseth,
Ole-Jakob How,
Timofei Kondratiev,
Tor Magne Gamst,
Georg Sager,
Torkjel Tveita:
DOPAMINE INFUSIONS IN NORMOTHERMIA, SEVERE HYPOTHERMIA AND DURING REWARMING: PHARMACOKINETICS AND CARDIOVASCULAR FUNCTION IN A PIG MODEL OF SURFACE COOLING AND REWARMING
Intensive Care Medicine 2010
Svein Erik Gaustad,
Timofei Kondratiev,
Andreas Møllerløkken,
Ulrik Wisløff,
Alf O Brubakk,
Torkjel Tveita:
Dynamic changes in cardiovascular function during diving and decompression at different core temperatures
2010
Erik Sveberg Dietrichs,
Timofei Kondratiev,
Torkjel Tveita:
Cardiovascular effects of milrinone during rewarming from hypothermia in an intact animal model
2009
YS Han,
Torkjel Tveita,
Timofei Kondratiev,
GC Sieck:
Change in physiologic response to isoproterenol induced by hypothermia is not reversed by rewarming
Acta Anaesthesiologica Scandinavica 2007
YS Han,
Torkjel Tveita,
Timofei Kondratiev,
YS Prakash,
GC Sieck:
The physiologic response to isoproterenol during hypothermia and rewarming
The FASEB Journal 2007
elena Egorina,
Mikhail Sovershaev,
Timofei Kondratiev,
Jan Ole Olsen,
torkjel Tveita,
Bjarne Østerud:
Heat shock prevents tissue factor expression after rewarming from lethal hypothermia in c-Jun-dependent manner
2006
elena Egorina,
Mikhail Sovershaev,
Timofei Kondratiev,
Jan Ole Olsen,
torkjel Tveita,
Bjarne Østerud:
Heat Shock Prevents Tissue Factor Induction after Rewarming from Lethal Hypothermia in a c-Jun-Dependent Manner
2006
Timofei Kondratiev,
torkjel Tveita (Veileder):
Hypothermia-induced myocardial dysfunction. An in vivo experimental study with special reference to effects of epinephrine applied for posthypothermic cardiovascular resuscitation
2006
Ragnhild Margrete Wold,
Timofei Kondratiev,
Torkjel Tveita:
Myocardial calcium control during short- and long-lasting hypothermia and rewarming in an in situ rat model
Journal of Molecular and Cellular Cardiology 2005
Timofei Kondratiev,
Ragnhild Margrete Wold,
torkjel Tveita:
Effects of hypothermia and rewarming on myocardial calcium control in an intact animal model
2003
Timofei Kondratiev,
torkjel Tveita:
Presistent myocardial depression during hypothermia and rewarming following sympathetic stimulation during cooling
2001
Timofei Kondratiev,
Øystein Simonsen,
Nymark Tor-Bjarne,
torkjel Tveita:
Altered dose dependent inotropic effects of epinephrine during hypothermia and rewarming. Publisert: Acta anaesthesiologica scandinavica, (supplement), 115 (45), 2001, p.73
2001
Forskningsinteresser
Aksidentell hypotermi
