| | Study | Adverse event | | Stimulation | Surgical | Device |
| | Hubble J.P. et al. 1996 | Paresthesia (10), dysarthria (1), headache (2), face-arm pain (1), right-sided weakness (3), face weakness (1), decreased range of motion left shoulder(1) | 0 | 0 | | Koller W.C et al. 1999 | Mild paresthesia (24), mild headache (9), mild dysarthria (7), mild paresis (6), attention/cognitive deficits (2), gait disorder (2), facial weakness (2), dystonia (1), hypophonia (1), nausea (1), mild depression (1), dizziness (1) | Subdural hematoma (1), intraparenchymal hemorrhage (1), asymptomatic bleeds (3), seizures (1) | Loss of effect (8), lead replacement (2), devices explanted (2), reprogrammed (1), broken lead (1), lead extension replacements (2), IPG replacement (1) | | Taha J M. et al. 1999 | Disequilibrium (7), mild short-term memory loss (1), mild shock (4), dysarthria (7) | 0 | 0 | | Koller W.C et al. 2001 | Paresthesia (21), headache (15), paresis (6), dysarthria (4), nausea (4), disequilibrium (3), facial weakness (3), gait disorder (2), dystonia (2), mild attention/cognitive deficit (2), dizziness (2), hypophonia (1), anxiety (1), depression (1), syncope (1), vomiting (1), shocking sensation (1), drooling (1) | Asymptomatic bleeds (3), postoperative seizures (1) | Lead replacement (7), lead reposition (3), extension wire replaced (3), IPG replaced (4), entire system explanted (1) | | Ondo et al. 2001 | Paresthesia (3), headache (5), dysarthria (7), neck pain (2), mouth pain (1), increased saliva (1), balance and gait difficulty (10) | 0 | 0 | | Pahwa R et al. 2001 | Headache (9), paresthesia (10), dysarthria (1), disequilibrium (1), dizziness (2) | Seizures (1) | 0 | | Rehncrona S et al. 2003 | 0 | 0 | Lead fracture (1) | | Lee J Y.K. et al. 2005 | Hand tingling (3) | Temporary erythema of the incision (1) | Lead fracture (1), electrode migration (1) | | Kuncel A.M et al. 2006 | Dysarthria (9), posturing (7), jaw deviation (3), eye closure (2), voice affected (2) | 0 | 0 | | Blomstedt et al. 2007 | 0 | 0 | IPG exchange (12), lead fracture (6) | | Törnqvist A. L et al. 2007 | 0 | Infections (2) | Lead fracture (1) | | Ellis TM et al. 2008 | 0 | 0 | Lead fracture (1), lead migrated (1) | | Lind G et al. 2008 | Speech disorder (3), balance and gait difficult (2) | Infections (2) | Battery replacement (6) | | Blomstedt et al. 2010 | Aphasia (8), clumsy (1) | 0 | 0 | | Baizabal Carvallo JF et al. 2012 | 0 | Infections (3) | Misplacements (4), migrations (5), fractures (5) | | Zahos P.A. et al. 2013 | 0 | Wound dehiscence (2) | Lead fracture (1) | | Carballal C.F. et al. 2013 | Headache (9), paresthesia (6), dysarthria (17), dizziness (5), reduced balance (4) | Infections (1) | 0 | | Borretzen M.N. et al. 2014 | Dysarthria (17), headache (9), paresthesia (6), abnormal taste (8), dizziness (5), discomfort tongue (4), reduced balance or coordination (4) | 0 | 0 | | Baizabal Carvallo JF et al. 2014 | Incoordination (7), dysarthria (6) | 0 | Vasovagal reaction (1) | | Hariz G-M et al. 2015 | Headache (1), voice affected (5), deterioration of balance (4), tiredness (1), tearful (1), felt discomfort (1) | 0 | 0 | | Verla T. et al.2015 | 0 | Hemorrhagic complication (10), infection (20), pulmonary embolism (4), pneumonia (16) | Lead revision (2), generator revision (7) | | Sharma V.D et al. 2015 | Incoordination (1), dysarthria (1), paresis (1), asthenia (1), reduced balance (1) | 0 | 0 | | Silva D et al. 2016 | Paresis (2), dysarthria (6), transient cognitive alter (1), facial numbness (1) | Hemorrhage (1), infections (1) | 0 | | Klein J et al. 2017 | 0 | Infections (1) | Wound revision (3), electrode dislocation (1) | | Wharen R E.et al. 2017 | Speech disturbances (12), gait/postural disorder (5), cognitive changes (8), dysphagia (2), tinnitus (1), shocking or jolting sensation (3), discomfort (17), headache (8), paresis (1), dystonia (2), dysarthria (1), hemiparesis (1) | Seizures (1), intracranial hemorrhage (3), wound dehiscence (4), infections (5), pocket hematoma (2) | Misplaced lead (6), IPG malfunction (4), extension malfunction (6), battery check (9) | | Barbe M T et al. 2018 | Right hemiparesis (1), dysarthria (11), aphasia (1), nausea (1) | Intracerebral hemorrhage (1) | 0 | | Chen T et al. 2018 | Mental status change (9), speech disturbance (7), balance or gait disturbance (6), speech & balance disturbances (5) | Hemorrhage (1), wound breakdown (1) | 0 |
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