A 29-year-old female asked:
one sleep study said 237 limb movements and the next said 1/hr. one dr says periodic limb movement disorder other says nothing is wrong. what do i do?
2 doctor answers • 3 doctors weighed in
Internal Medicine 46 years experience
Sleep Studies: Plmd is either primary or secondary. Secondary plmd is associated with certain conditions such as restless legs syndrome and sleep apnea. It may also be caused by certain meds. According to your 1st study, you do have plmd. If you had sleep apnea, and you second study was a titration study with cpap, reducing your apnea would also likely reduce your limb movements.
A Verified Doctor answered
Not the same thing: Not every limb movement correlates with limb movement disorder. The diagnostic features of plms are complex, with an average interval of 20-40 sec., lasting 0.5 to 10 sec. And as a part of 4 consecutive movements at least 8 MCV in EMG amplitude increase above the baseline. These occur during nrem sleep. Only such movements are significant. There are many movements; few count towards illness.
Last updated Mar 6, 2020
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