Table 1.

 Outcome of symptoms and acid exposure after endoscopic therapy in gastro-oesophageal reflux disease: summary of uncontrolled studies

	Symptoms		pH <4%time		No of patients
	Pre	Post	Pre	Post
Endocinch
Park et al26	5	1*	8.5	3.7*	142
Filipi et al21	62.7	17*	9.6	8.5	64
Mahmood et al44	79	27*	11.1	9.3*	21
Arts et al27	11.6	7.1*	17.0	9.8*	20
Enteryx
Johnson et al20	25.5	8.5*	9.0	6.4*	85
Stretta
Triadafilopoulos et al22	27	9*	10.2	6.4*	94
DiBaise et al41	21.5	7*	9.5	6.2*	18
Tam et al40	19	6*	10.6	6.3*	15
Meier et al33	17	7*			25
Houston et al32	3.7†	5.1†*	8.4	4.4*	41
Wolfsen et al35	26%	77%‡*			558

*Significant difference.

†QOLRAD score.

‡Per cent satisfaction.