. Author manuscript; available in PMC: 2016 Jul 1.

Published in final edited form as: Gastroenterology. 2015 Apr 8;149(1):56–66.e5. doi: 10.1053/j.gastro.2015.04.003

Table 1.

Comparison of characteristics between the CUNV population and mapping controls. Methods of mapping and data analysis were identical.

Characteristic	CUNV cohort	Control cohort
No. of patients	9	9
Median age, y (range)	50 (22–59)^*	57 (25–74)^*
Sex (female:male)	8:1	5:4
No. of recordings	18	11
Duration of mapping (mean ± SD)	11 ± 5 min/pt	10 ± 3 min/pt
Anesthetic regimen	Prophylactic antibiotics, benzodiazepine premedication, a short-acting intravenous opiate, muscle relaxants (suxamethonium or rocuronium), propofol, desflurane	Prophylactic antibiotics, benzodiazepine premedication, a short-acting intravenous opiate, muscle relaxant (atracurium or suxamethonium), propofol, isoflurane, or sevoflurane. Eight also had epidural or spinal block.
Electrodes (type; tip diameter; no. of channels)	PCB²⁴; 0.3 mm; 256 channels	PCB²⁴; 0.3 mm; 96–256 channels
Filtering methods	Savitzky-Golay (1.7s window; polynomial order 9) and moving median (20s window) filters²⁸
Analysis and isochronal activation mapping methods	FEVT, REGROUPS, and SIV algorithms performed in GEMS v1.5 with subsequent manual review^27,29,30
Frequency, velocity, and amplitude calculation methods	Algorithms in GEMS v1.5²⁷

P = 0.14.