Treatment of Internal Hemorrhoids by Endoscopic Sclerotherapy with Aluminum Potassium Sulfate and Tannic Acid

Table 3

Comparison with conventional injection sclerotherapy.

References	Patients ()	Follow-up; (months)	Sclerosing agents	Effectiveness; (%)	Complications; (%)	Recurrence; (%)	Additional therapy (%)
Greca et al. 1981 [27]	43	12	5% phenol	70.0	0	30.2	14.0
Gartell et al. 1985 [12]	109	33	5% phenol	70.0	0	—	25.7
Walker et al. 1990 [13]	28	48	5% phenol	35.7	70.2	64.2	14.3
Santos et al. 1993 [14]	189	48	5% phenol	60.3	0.5	8.5	22.2
Kanellos et al. 2003 [15]	80	48	5% phenol	17.5	36.3	63.0	30.0
Shi 1997 [16]	21,361	36	Xiaozhiling	99.0	4.6	1.0	—
Takano et al.; 2006 [6]	95	12	ALTA	94.0	49.0	16.0	—
Tokunaga et al.; 2010 [17]	784	4–30	ALTA	96.0	1.8	—	—
Hachiro et al.; 2011 [7]	448	29	ALTA	—	3.1	—	3.1
Miyamoto et al.; 2012 [18]	28	8–21	ALTA	100	21.4	10.7	—
Yano et al.; 2014 [19]	57	48	ALTA	53	—	—	22.8
Present study; 2015	83	27	ALTA	97.6	4.8	9.6	8.4

—: results absent or not clearly reported in the text.