RT Book, Section
A1 Olanow, C. Warren
A1 Klein, Christine
A2 Loscalzo, Joseph
A2 Fauci, Anthony
A2 Kasper, Dennis
A2 Hauser, Stephen
A2 Longo, Dan
A2 Jameson, J. Larry
SR Print(0)
ID 1205526045
T1 Tremor, Chorea, and Other Movement Disorders
T2 Harrison's Principles of Internal Medicine, 21e
YR 2022
FD 2022
PB McGraw-Hill Education
PP New York, NY
SN 9781264268504
LK accessmedicine.mhmedical.com/content.aspx?aid=1205526045
RD 2024/04/19
AB Hyperkinetic  movement  disorders  are  characterized  by  involuntary  movements  unaccompanied  by  weakness  (Table  436-1).  This  term  is  somewhat  arbitrary  and  potentially  misleading  as  hypokinetic  disorders  such  as  Parkinson’s  disease  (PD)  are  often  accompanied  by  tremor,  which  is  a  hyperkinetic  feature,  and  hyperkinetic  disorders  such  as  dystonia  may  manifest  slow  or  restricted  movement  because  of  the  severe  muscle  contractions.  Nonetheless,  the  terms  continue  to  be  used  because  of  convention.  The  major  hyperkinetic  movement  disorders  and  the  diseases  with  which  they  are  associated  are  considered  in  this  section.