Intervention effect of personalized biofeedback therapy for anorectal dynamics and defecation dysfunction in patients with rectal cancer after restorative resection / 中国实用护理杂志

ABSTRACT

Objective:To investigate the effect of personalized biofeedback therapy for anorectal dynamics and defecation dysfunction in patients with rectal cancer after restorative resection, and to explore the useful method to prevent low anterior resection syndrome.Methods:Rectal cancer patients in hospital from January 2017 to June 2018 were enrolled in the present study, who were going to undergo sphincter-preserving surgery. They were randomly divided into control group and intervention group. Participants in the control group received routine nursing, while the intervention group carried out personalized biofeedback therapy for three months. After 1th month, 3th month, 6th month of followed-up, the anorectal dynamics index such as anal resting pressure, rectal resting pressure, maximum systolic pressure, initial rectal volume, rectal fecal sensory capacity, rectal maximum tolerance capacity were compared between two groups, in addition, the defecation function were also evaluated.Results:Preoperative, after 1th month of followed-up, the anorectal dynamics index was no significant difference between intervention group and control group ( P>0.05). After 3th month of followed-up, the rectal resting pressure was significantly decreased [(6.65±1.70)mmHg vs (7.65±1.72)mmHg] and initial rectal volume, rectal maximum tolerance capacity was significantly increased in the intervention group compared to the control group [(27.18±4.21)ml, (114.59±23.72)ml vs (20.78±5.76)ml, 100.65±17.73)ml] (all P<0.05). After 6th month of followed-up, the rectal resting pressure was significantly decreased [(4.54±1.24)mmHg vs (5.80±1.30)mmHg] and anal resting pressure, maximum systolic pressure, initial rectal volume, rectal fecal sensory capacity, rectal maximum tolerance capacity was significantly increased [(34.06±8.95)mmHg, (147.07±32.08)mmHg, (31.10±5.80)ml, (45.77±8.74)ml, (130.99±25.67)ml vs(29.12±7.02)mmHg, (128.60±27.26)mmHg, (26.23±5.39)ml, (40.92±7.21)ml, (109.17±25.02)ml] in the intervention group compared to the control gorup (all P<0.05). There was no significant difference of defecation function between intervention group and control after 1th, 3th month of followed-up ( P>0.05), however, the defecation function was better in the intervention group compared to the control group ( P<0.05). Conclusion:Personalized biofeedback can significantly improve the anorectal dynamics of patients with rectal cancer after restorative resection, promote the defecation dysfunction syndrome, which is worthy of popularization and application.