Observational Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Jun 14, 2015; 21(22): 6982-6989
Published online Jun 14, 2015. doi: 10.3748/wjg.v21.i22.6982
Table 2 Autonomic cardiovascular tests reflecting parasympathetic damage n (%)
Autonomic cardiovascular reflex testsReflux(n = 19)Controls (n = 77)P value1
Valsalva maneuver8 (42.1)18 (23.4)0.015
Heartrate variation during deep breathing10 (52.6)8 (10.4)< 0.001
Heart rate response to standing test6 (31.6)36 (47.4)20.028
Vagal dysfunction8 (42.1)10 (13.0)0.014