Exercise-provoked esophageal motility disorder in patients with recurrent chest pain

Table 2 Comparison of manometric parameter values during the treadmill stress test and during the 24-h monitoring period in patients with and without significant (> 50%) coronary artery narrowing

Parameter	CAD- (n = 35)			CAD+ (n = 28)
	24 h	ext	P	24 h	ext	P
Contractions per minute	1.5 ± 0.8	2.7 ± 1.7	0.001	1.9 ± 1.5	2.7 ± 2.2	0.04
Peristaltic contractions (%)	64.3 ± 9.6	47.2 ± 8.4	0.001	67.7 ± 28.6	56.9 ± 18.7	0.03
Complete peristalsis (%)	43.9 ± 15.3	35.6 ± 18.5	0.140	51.9 ± 10.9	49.3 ± 26.5	0.70
Reduced peristalsis (%)	18.3 ± 13.2	16.2 ± 14.8	0.630	13.3 ± 6.3	10.1 ± 7.2	0.30
Interrupted peristalsis (%)	37.8 ± 10.8	40.1 ± 30.0	0.690	34.8 ± 8.5	36.8 ± 24.1	0.70
Simultaneous/mixed contractions (%)	35.7 ± 9.6	49.3 ± 23.8	0.010	32.3 ± 8.6	43.0 ± 18.7	0.02
Complete contractions (%)	16.6 ± 5.2	35.6 ± 28.5	0.010	14.9 ± 4.4	30.6 ± 30.1	0.03
Simultaneous contractions (%)	83.4 ± 5.3	71.1 ± 28.7	0.040	85.1 ± 4.9	69.4 ± 30.1	0.03

CAD: Coronary artery disease; CAD-: Patients without significant coronary artery narrowing; CAD+: Patients with significant (> 50%) coronary artery narrowing; 24 h: Examination within one whole day; ext: Examination during the exercise test.