Changes in anorectal physiology following injection sclerotherapy using aluminum potassium sulfate and tannic acid versus transanal repair in patients with symptomatic rectocele; a retrospective cohort study

Table 4 Comparison of anorectal physiology between ALTAS and TAR in rectocele

Anorectal physiologic study	Pre-treatment			Post-treatment
Anorectal physiologic study	ALTAS	TAR	P value	ALTAS	TAR	P value
Defecography, mean
Anorectal angle (°)
Resting	98.86	97.67	0.411	98.05	99.22	0.426
Squeezing	91.30	91.79	0.664	90.84	91.77	0.358
Push	104.33	106.10	0.303	113.95	112.21	0.261
Perineal descent (cm)	1.55	1.58	0.642	2.46	2.43	0.808
Rectocele size (cm)	7.74	7.78	0.895	2.91	2.67	0.196
Anorectal manometry, mean
MRP (mmHg)	19.12	20.18	0.172	19.66	21.93	0.022
MSP (mmHg)	86.17	87.87	0.605	85.57	94.23	0.010
Rectal sensation (mL)
ST	85.53	85.67	0.967	78.48	78.06	0.911
EDU	158.71	157.86	0.907	116.97	109.19	0.323
MTV	207.64	197.52	0.335	148.48	142.22	0.397

Data are expressed as absolute mean
ALTAS sclerotherapy using aluminum potassium sulfate and tannic acid, TAR transanal rectocele repair, MRP mean resting pressure, MSP maximal squeezing pressure, ST sensory threshold, EDU earliest defecation urge, MTV maximal tolerable volume

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