Autonomic DysreflexiaCerebral HemorrhageSpinal Cord InjuriesQuadriplegiaAutonomic Nervous System DiseasesIntracranial Hemorrhage, HypertensiveReflex, AbnormalParaplegiaSubarachnoid HemorrhageCerebral InfarctionAutonomic Fibers, PreganglionicReflexHemorrhageGalvanic Skin ResponseCerebral ArteriesDoxazosinRectumUrodynamicsCerebral Amyloid AngiopathyCerebrovascular DisordersIntracranial HemorrhagesBlood PressureCapillary FragilityThoracic VertebraeAfferent PathwaysCerebral AngiographyCerebral Amyloid Angiopathy, FamilialHypertensionMiddle Cerebral ArteryAdrenergic alpha-AntagonistsCerebrovascular CirculationBrainCervical VertebraeTomography, X-Ray ComputedAmyloidosisBrain IschemiaIntracranial Embolism and ThrombosisReceptors, Adrenergic, alphaHeart RateColon