Autonomic Nervous System DiseasesMethyl n-Butyl KetoneCentral Nervous System DiseasesAutonomic Nervous SystemMultiple Organ FailureNervous System DiseasesBrainHeart RateDisease Models, AnimalCase-Control StudiesErectile DysfunctionVentricular Dysfunction, LeftVentricular DysfunctionSexual Dysfunction, PhysiologicalSexual Dysfunctions, PsychologicalEndothelium, VascularVentricular Dysfunction, RightOxidative StressPrimary Graft DysfunctionPenile ErectionVasodilationDiastoleMitochondriaTime FactorsMyocardiumHeart FailureMyocardial ContractionEchocardiographyCardiomyopathiesVasodilator AgentsImpotence, VasculogenicMitochondrial DiseasesMice, Inbred C57BLNitric OxideCognition DisordersSystoleBiological MarkersVentricular Function, LeftPenisStroke VolumeReactive Oxygen SpeciesHeartRats, Sprague-DawleyHeart Failure, DiastolicNitric Oxide Synthase Type IIIKidney DiseasesHemodynamicsTreatment OutcomeSeverity of Illness IndexRisk FactorsBlood Pressure