Table 2.

Comparative evaluation of patient characteristics before and after peroral endoscopic myotomy (POEM).

	Before POEM		Post-POEM				P value
	Pre-procedure	95% CI	3 days post-POEM	95% CI	12 months post-POEM	95% CI	Pre-POEM vs 3 days post-POEM	Pre-POEM vs 12 months post-POEM
Abnormal contraction lenght
	3.2 + 0.4 cm	[2.974–3.426]	0.2 ± 0.5 cm	[0.083–0.483]	0.3 ± 0.6 cm	[0.039–0.639]	0.0001	0.0001
Width of esophagus
	3.7 ± 0.5 cm	[3.417–3.983]	2.2 ± 0.4	[1.974–2.426]	2.0 ± 0.2	[1.887–2.113]	0.0001	0.0001
Contrast delay
	22.3 ± 7.0 sec	[18.339–26.261]	1.7 ± .3.7 sec	[0.393–3.793]	2.1 ± .4.7 sec	[0.559–4.759]	0.0001	0.0001
High resolution-manometory (IRP) mm Hg
	26.8 ± 5.4	[21.508–32.092]	NA	NA	10.8 ± 1.1	[9.722–11.878]	NA	0.0001
Eckardt score
	7.0 ± 1.0	[6.434–7.566]	1.0 ± 1.7	[0.0382–1.962]	1.0 ± 1.7	[0.0382–1.962]	0.0001	0.0001