Cardiac Arrhythmias During Aerobatic Flight and Its Simulation on a Centrifuge

Zawadzka-Bartczak, Ewelina; Kopka, Lech

doi:10.3357/asem.2558.2011

Cited by 13 publications

(9 citation statements)

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“…While we did not observe higher degree cardiac dysrhythmias during centrifugation, frequent isolated premature ventricular complexes in two participants in the continuous centrifugation group are noteworthy as long-arm centrifugation nor orthostatic stress imposed by standing are associated with cardiac dysrhythmias in otherwise healthy persons [38,39]. Whether premature ventricular complexes were triggered by short-arm centrifugation or other stresses resulting from the complex multi-experimental study cannot be discerned.…”

Section: Discussioncontrasting

confidence: 72%

“…Whether premature ventricular complexes were triggered by short-arm centrifugation or other stresses resulting from the complex multi-experimental study cannot be discerned. It is reassuring that orthostatic stress imposed by standing or long-arm centrifugation rarely produces significant cardiac dysrhythmias in otherwise healthy persons [38,39]. While presyncope occurred slightly more frequently in the continuous centrifugation group the incidence is Table 2.…”

Section: Discussionmentioning

confidence: 97%

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Tolerability of daily intermittent or continuous short-arm centrifugation during 60-day 6o head down bed rest (AGBRESA study)

et al. 2020

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Artificial gravity through short-arm centrifugation has potential as a multi-system countermeasure for deconditioning and cranial fluid shifts that may underlie ocular issues in microgravity. However, the optimal short-arm centrifugation protocol that is effective whilst remaining tolerable has yet to be determined. Given that exposure to centrifugation is associated with presyncope and syncope and in addition motion sickness an intermittent protocol has been suggested to be more tolerable. Therefore, we assessed cardiovascular loading and subjective tolerability of daily short arm centrifugation with either an intermittent or a continuous protocol during long-term head-down bed rest as model for microgravity exposure in a mixed sex cohort. During the Artificial Gravity Bed Rest with European Space Agency (AGBRESA) 60 day 6˚head down tilt bed rest study we compared the tolerability of daily +1 Gz exposure at the center of mass centrifugation, either performed continuously for 30 minutes, or intermittedly (6 x 5 minutes). Heart rate and blood pressure were assessed daily during centrifugation along with post motion sickness scoring and rate of perceived exertion. During bed rest, 16 subjects (6 women, 10 men), underwent 960 centrifuge runs in total. Ten centrifuge runs had to be terminated prematurely, 8 continuous runs and 2 intermittent runs, mostly due to pre-syncopal symptoms and not motion sickness. All subjects were, however, able to resume centrifuge training on subsequent days. We conclude that both continuous and intermittent short-arm centrifugation protocols providing artificial gravity equivalent to +1 Gz at the center of mass is tolerable in terms of cardiovascular loading and motion sickness during long-term head down tilt bed rest. However, intermittent centrifugation appears marginally better tolerated, albeit differences appear minor.

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Section: Discussioncontrasting

confidence: 72%

Section: Discussionmentioning

confidence: 97%

Tolerability of daily intermittent or continuous short-arm centrifugation during 60-day 6o head down bed rest (AGBRESA study)

et al. 2020

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“…Cardiovascular response to +G z has been well studied in aviators and other military personnel undergoing centrifuge-simulated hypergravity exposures or performing aerobatic flight, establishing thresholds for acceleration tolerance and demonstrating that electrocardiographic (ECG) abnormalities are common. 8,16,17 to induce primarily single or couplet premature ventricular complexes (PVCs) and, less frequently, premature atrial complexes (PACs), bigeminy, or trigeminy. 8,16 In a small percentage of individuals, other rhythms have been observed, including ventricular tachycardia, atrial fibrillation, supraventricular tachycardia, and anomalous sinus bradycardia.…”

Section: R E S E a R C H A R T I C L Ementioning

confidence: 99%

Dysrhythmias in Laypersons During Centrifuge-Simulated Suborbital Spaceflight

Suresh

Blue

Mathers

et al. 2017

aerosp med hum perform

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Dysrhythmias in laypersons undergoing simulated suborbital spaceflight were well tolerated, though RB was frequently noted during short-duration +Gx exposure. No subjects demonstrated associated symptoms or objective hemodynamic sequelae from these events. Even so, heightened caution remains warranted when monitoring dysrhythmias in laypersons with significant cardiopulmonary disease or taking medications that modulate cardiac conduction.Suresh R, Blue RS, Mathers CH, Castleberry TL, Vanderploeg JM. Dysrhythmias in laypersons during centrifuge-stimulated suborbital spaceflight. Aerosp Med Hum Perform. 2017; 88(11):1008-1015.

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“…Also, it is estimated that 10% of patients presenting with ventricular arrhythmias are idiopathic, without obvious structural heart disease (Klein et al, 1992), where the most common forms are the right ventricular outflow tract (RVOT) monomorphic PVC and the RVOT VT (Miles, 2001). Additional factors induced by space flight, such as sudden pressure changes (Ptak et al, 2013) or rapid onset and offset of +Gx or +Gz acceleration (Torphy et al, 1966;Rogge et al, 1969;Zawadzka-Bartczak and Kopka, 2011) could also increase arrhythmia susceptibility.…”

Section: Introductionmentioning

confidence: 99%

Weightlessness and Cardiac Rhythm Disorders: Current Knowledge from Space Flight and Bed-Rest Studies

Caiani

Martín-Yebra

Landreani

et al. 2016

Front. Astron. Space Sci.

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Isolatedepisodesofheartrhythmdisordershavebeenreportedduring40yearsofspaceflight,triggeringresearchtoevaluatetheriskofdevelopinglife-threateningarrhythmiasinducedbyprolongedexposuretoweightlessness.Infact,theseeventscouldcompromiseastronautperformanceduringexploratorymissions,aswellasposeatrisktheastronauthealth,duetolimitedoptionsofcareonboardtheInternationalSpaceStation.Startingfromoriginalobservations,thisminireviewwillexplorethelatestresearchinthisfield,consideringresultsobtainedbothduringspaceflightandonEarth,thelatterbysimulatinglong-termexposuretomicrogravitybyhead-downbedrestmaneuverinordertoelicitcardiovasculardeconditioningonnormalvolunteers

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Cardiac Arrhythmias During Aerobatic Flight and Its Simulation on a Centrifuge

Cited by 13 publications

References 0 publications

Tolerability of daily intermittent or continuous short-arm centrifugation during 60-day 6o head down bed rest (AGBRESA study)

Tolerability of daily intermittent or continuous short-arm centrifugation during 60-day 6o head down bed rest (AGBRESA study)

Dysrhythmias in Laypersons During Centrifuge-Simulated Suborbital Spaceflight

Weightlessness and Cardiac Rhythm Disorders: Current Knowledge from Space Flight and Bed-Rest Studies

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