Pulmonary Wedge PressureHemodynamicsAbscessCardiac OutputHeart FailureVascular ResistanceBlood PressureBrain AbscessLiver AbscessCardiac CatheterizationPressureAbdominal AbscessLung AbscessEpidural AbscessPsoas AbscessLiver Abscess, AmebicCentral Venous PressureLiver Abscess, PyogenicHydrostatic PressureVentricular PressurePeriapical AbscessRetropharyngeal AbscessPulmonary EdemaCatheterization, Swan-GanzPulmonary CirculationPeritonsillar AbscessHeart RateStroke Volume