白癜风发病机理??
Dyspnean.呼吸困难[d?sp?ni
]
Cardinaladj.主要的[?kɑ:rd?nl]
Heartfailure心衰
Cardiacoutput心输出量
Worseningdyspneaisacardinalsymptomofheartfailureandtypicallyisrelatedtoincreasesincardiacfillingpressuresbutalsomayrepresentrestrictedcardiacoutput.Theabsenceofworseningdyspnea,however,doesnotnecessarilyexcludethediagnosisofheartfailure,becausepatientsmayac
