Epilepsy surgery for refractory seizures: a systematic review and meta-analysis in different complications

Joudi Mashhad, Maryam; Harati, Hadi; Parooie, Fateme; Salarzaei, Morteza

doi:10.1186/s41983-020-00168-1

The Egyptian Journal of Neurology, Psychiatry and Neurosurgery

Table 1 Study characteristics

From: Epilepsy surgery for refractory seizures: a systematic review and meta-analysis in different complications

Author	Year	Country/province	Sampling method	Study design	Study duration	Female to male	Participants	Age mean ± SD or range	Seizure free (Engel class 1a)
Vale et al. [25]	2013	USA	Convenience	Retrospective	1998–2012	1.04	483	4–75 (36.7)	N/A
Srikijvilaikul [41]	2018	Thailand	Convenience	Retrospective	2011–2015	0.98	194	27.9 ± 15.1	N/A
Espinoza-Velázquez et al. [42]	2014	Mexico	Convenience	Retrospective	1992–2013	N/A	227	N/A	N/A
Ozlen et al. [28]	2010	Turkey	Convenience	Retrospective	2004–2009	1.33	70	23.4 ± 11.9	N/A
Ipekdal et al. [29]	2010	Turkey	Convenience	Retrospective	2000–2010	2.5	58	25–45 (33.3)	N/A
Ahmedo et al. [30]	2018	Turkey	Convenience	Retrospective	2009–2017	0.96	53	19–55 (30.4 ± 9)	N/A
Hedegard et al .[31]	2013	Sweden	Convenience	Retrospective	1996–2010	0.94	271	2–58 (26)	N/A
Dunkley et al .[43]	2010	UK	Convenience	Retrospective	--	0.75	42	3–36 months (20 months)	48% (20)
Heller et al .[26]	2009	USA	Convenience	Retrospective	1998–2005	N/A	190	N/A	N/A
Binder et al .[33]	2009	Germany	Convenience	Retrospective	1990–2004	1.35	40	25	57.5% (23)
Lee et al .[34]	2009	Korea	Convenience	Retrospective	1997–2006	0.84	92	3 months–36 years	N/A
d’Orio et al .[35]	2017	Italy	Convenience	Retrospective	1997–2014	0.43	50	50–62 (53.8)	78% (39)
Bjellvi et al. [32]	2015	Sweden	Convenience	Retrospective	1996–2015	0.95	865	2 months–69 years (24)	N/A
Rolston et al. [27]	2016	USA	Convenience	Retrospective	2000–2013	1.02	6200	18–90 (45.6 ± 16.8)	N/A
Vermeulen et al. [36]	2016	Belgium	Convenience	Retrospective	1998–2012	1.14	199	14–64 (40)	77% (153)
Mathon et al. [37]	2017	France	Convenience	Retrospective	1990–2015	1.11	389	(36.7)	83.7% (302)
Panigrahi et al .[38]	2016	India	Convenience	Retrospective	-	0.75	697	30.4 ± 12.4	N/A
Tanriverdi et al. [39]	2009	Canada	Convenience	Retrospective		1.02	1905	(30.4)	N/A
Wellmer et al. [40]	2012	Germany	Convenience	Retrospective	2002–2008	0.75	502	N/A	49.7% (82)

N/A non applicable, SD standard deviation

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