Changes in optimal stimulation frequency with time for gait disturbances in patients with PD after STN-DBS—A longitudinal study

Aim: To assess the changes in frequency parameters of STN-DBS stimulation over 6 months required to optimize gait in PD patients. Methods: It's a single center, open label longitudinal study of PD patients after STN-DBS with gait disorders. Gait assessment using stand–walk–sit (SWS) test and fr...

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Main Authors: Sruthi Kola, Ravi Prakash Rangam, Rukmini M Kandadai, Rajesh Alugolu, Raghuram Kedasi, Pavan Swamygowda, VVSRK Prasad, Sai Sri Lakshmi Meka, Syed T Fathima, Rupam Borgohain
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2023-01-01
Series:Annals of Indian Academy of Neurology
Subjects:
Online Access:http://www.annalsofian.org/article.asp?issn=0972-2327;year=2023;volume=26;issue=4;spage=401;epage=407;aulast=Kola
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author Sruthi Kola
Ravi Prakash Rangam
Rukmini M Kandadai
Rajesh Alugolu
Raghuram Kedasi
Pavan Swamygowda
VVSRK Prasad
Sai Sri Lakshmi Meka
Syed T Fathima
Rupam Borgohain
author_facet Sruthi Kola
Ravi Prakash Rangam
Rukmini M Kandadai
Rajesh Alugolu
Raghuram Kedasi
Pavan Swamygowda
VVSRK Prasad
Sai Sri Lakshmi Meka
Syed T Fathima
Rupam Borgohain
author_sort Sruthi Kola
collection DOAJ
description Aim: To assess the changes in frequency parameters of STN-DBS stimulation over 6 months required to optimize gait in PD patients. Methods: It's a single center, open label longitudinal study of PD patients after STN-DBS with gait disorders. Gait assessment using stand–walk–sit (SWS) test and freezing of gait (FOG) scores were done at baseline and after 6 months. Gait was assessed in five frequencies settings, that is, 60 Hz, 90 Hz, 130 Hz, 180 Hz and stimulation “OFF” during medication ON state. Voltage was maintained. Results: Fifteen post-deep brain stimulation (DBS) patients were included. Mean duration after surgery was 3.73 ± 2.82 years. In SWS and FOG at baseline, five patients have good response at 180 Hz frequency, five at 130 Hz, one at 90 Hz, two patients at 60 Hz, one both 60 and 90 Hz, and one at both 90 and 180 HZ. And after 6 months out of the 13 patients who were able to perform the test, four patients had good response at 180 Hz frequency, four at 130 Hz, two at 90 Hz, one each for 60 Hz and battery OFF state, and one for both 130 Hz and 180 Hz. At 6 months, four patients had good response at the same frequency as baseline, while 11 patients have change in frequency from baseline. Conclusion: Optimal frequency for gait varies in patients—both low and high frequency may be useful. Optimal frequency for improving gait changes over period of time. Regular assessment and changing frequency may improve gait after DBS.
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spelling doaj.art-a664db9982c847a0819843882fe79cb72023-10-26T05:44:41ZengWolters Kluwer Medknow PublicationsAnnals of Indian Academy of Neurology0972-23271998-35492023-01-0126440140710.4103/aian.aian_95_23Changes in optimal stimulation frequency with time for gait disturbances in patients with PD after STN-DBS—A longitudinal studySruthi KolaRavi Prakash RangamRukmini M KandadaiRajesh AlugoluRaghuram KedasiPavan SwamygowdaVVSRK PrasadSai Sri Lakshmi MekaSyed T FathimaRupam BorgohainAim: To assess the changes in frequency parameters of STN-DBS stimulation over 6 months required to optimize gait in PD patients. Methods: It's a single center, open label longitudinal study of PD patients after STN-DBS with gait disorders. Gait assessment using stand–walk–sit (SWS) test and freezing of gait (FOG) scores were done at baseline and after 6 months. Gait was assessed in five frequencies settings, that is, 60 Hz, 90 Hz, 130 Hz, 180 Hz and stimulation “OFF” during medication ON state. Voltage was maintained. Results: Fifteen post-deep brain stimulation (DBS) patients were included. Mean duration after surgery was 3.73 ± 2.82 years. In SWS and FOG at baseline, five patients have good response at 180 Hz frequency, five at 130 Hz, one at 90 Hz, two patients at 60 Hz, one both 60 and 90 Hz, and one at both 90 and 180 HZ. And after 6 months out of the 13 patients who were able to perform the test, four patients had good response at 180 Hz frequency, four at 130 Hz, two at 90 Hz, one each for 60 Hz and battery OFF state, and one for both 130 Hz and 180 Hz. At 6 months, four patients had good response at the same frequency as baseline, while 11 patients have change in frequency from baseline. Conclusion: Optimal frequency for gait varies in patients—both low and high frequency may be useful. Optimal frequency for improving gait changes over period of time. Regular assessment and changing frequency may improve gait after DBS.http://www.annalsofian.org/article.asp?issn=0972-2327;year=2023;volume=26;issue=4;spage=401;epage=407;aulast=Koladeep brain stimulationfrequencygaitsubthalamic nucleus stimulation
spellingShingle Sruthi Kola
Ravi Prakash Rangam
Rukmini M Kandadai
Rajesh Alugolu
Raghuram Kedasi
Pavan Swamygowda
VVSRK Prasad
Sai Sri Lakshmi Meka
Syed T Fathima
Rupam Borgohain
Changes in optimal stimulation frequency with time for gait disturbances in patients with PD after STN-DBS—A longitudinal study
Annals of Indian Academy of Neurology
deep brain stimulation
frequency
gait
subthalamic nucleus stimulation
title Changes in optimal stimulation frequency with time for gait disturbances in patients with PD after STN-DBS—A longitudinal study
title_full Changes in optimal stimulation frequency with time for gait disturbances in patients with PD after STN-DBS—A longitudinal study
title_fullStr Changes in optimal stimulation frequency with time for gait disturbances in patients with PD after STN-DBS—A longitudinal study
title_full_unstemmed Changes in optimal stimulation frequency with time for gait disturbances in patients with PD after STN-DBS—A longitudinal study
title_short Changes in optimal stimulation frequency with time for gait disturbances in patients with PD after STN-DBS—A longitudinal study
title_sort changes in optimal stimulation frequency with time for gait disturbances in patients with pd after stn dbs a longitudinal study
topic deep brain stimulation
frequency
gait
subthalamic nucleus stimulation
url http://www.annalsofian.org/article.asp?issn=0972-2327;year=2023;volume=26;issue=4;spage=401;epage=407;aulast=Kola
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