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. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: Epilepsy Res. 2016 May 18;124:55–62. doi: 10.1016/j.eplepsyres.2016.05.001

Table 2.

Frequency of procedures from Medicare Part B, 2000–2013, and NSQIP, 2005–2013.

Procedure Medicare Part B
 NSQIP
Number of Procedures Frequencyb Number of Procedures Frequency
Excision of epileptic focus 680 14.3 47 9.9
    Without ECoG 375 5.6 11 2.3
    With ECoG 605 8.7 36 7.6
Temporal lobectomy 3346 58.6 281 59.2
    Without ECoGa 1635 36.3 177 37.3
    With ECoG 1711 22.4 104 21.9
Selective Amygdalohippocampectomya 357 8.3 31 6.5
Other lobectomy 706 12.3 90 18.9
    Without ECoGa 365 8.2 54 11.4
    With ECoG 341 4.1 36 7.6
Corpus callosotomy 222 3.6 14 2.9
Hemispherectomy 72 1.6 9 1.9
Multiple subpial transectionsa 42 1.3 10 2.1
Total 5725 475
a

CPT code introduced in 2004.

b

Starting in 2009, data were censored if less than 11 procedures were recorded in a given year. This affected codes 61534, 61543, and 61567. Therefore, the frequency of procedures was calculated from only the five years spanning 2004–2008, when all codes were present.