Impact of Early Postoperative Treatment With Posterior Tibial Nerve Stimulation on the Incidence and Duration of Low Anterior Rectal Resection Syndrome
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 114
- 试验地点
- 2
- 主要终点
- Efficacy of PTNS (Posterior Tibial Nerve Stimulation) treatment on the incidence and duration of RAS symptoms in patients undergoing anterior rectal resection with sphincter-sparing surgery.
研究概览
简要总结
The treatment of rectal cancer is currently based on surgical resection of the rectum with total excision of the mesorectum, associated with neoadjuvant radiochemotherapy.
Surgical resections with sphincter preservation are frequently (60% of cases) associated with problems related to intestinal and defecatory function, which together are called Anterior Resection Syndrome (ARS) with varying degrees of severity.
Among the different treatments the investigators find posterior tibial nerve stimulation, a simple and non-invasive technique, which is currently used.
The study aims to analyze whether postoperative posterior tibial nerve stimulation in patients undergoing low anterior resection of the rectum has an impact on the incidence and duration of low anterior resection syndrome (LARS) and therefore on the quality of life of patients undergoing this type of intervention.
Therefore, treatment with PNTS is currently established for the management of LARS symptoms. Given that a large percentage of patients operated on for rectal neoplasms will develop this syndrome, the investigators intend to apply this treatment before the onset of symptoms in patients at risk for LARS. It is also an intervention with a low rate of side effects, the benefit that the investigators can obtain from its preventive application is clearly superior to the risk of undergoing such treatment.
The investigators´ hypothesis is: Posterior tibial stimulation for 6 weeks post-operative of low anterior resection with anastomosis has a favorable impact by reducing the incidence and duration of ARS and improving the quality of life of patients undergoing anterior rectal resections for cancer.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Triple (Participant, Investigator, Outcomes Assessor)
盲法说明
Assignment to one group or the other will be randomized by a simple 1:1 randomization method through the CRF automatically and after hospital discharge.
Double-blind masking will be performed (patients will not know to which group they belong and the investigator will not know to which group each patient is assigned). The only person aware of the outcome of the randomization will be the functional tests nurse, who will apply the PTNS treatment.
Patients in both groups will be appointed in the same way in the functional testing office, although patients in group 2 will not receive PTNS, the tibial nerve puncture will be applied, they will be stimulated until they perceive the corresponding current and then the neurostimulator will be turned off so that they do not receive the treatment.
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients undergoing elective surgery (scheduled, non-urgent) who underwent anterior rectal resection or transit reconstruction with low anastomosis (below 10 cm from the anal margin) at the Hospital Álvaro Cunqueiro in Vigo after the start date of the study.
- •Anastomotic tightness (absence of dehiscence).
- •Patients older than 18 years old.
- •Acceptance to participate in the study.
排除标准
- •Inability to understand the study instructions and recommendations.
- •Dementia or any type of mental disability.
- •Palliative surgery.
- •Patients with pacemakers.
- •Anti-coagulated patients.
- •Patients with trophic lesions on the skin of the ankles.
结局指标
主要结局
Efficacy of PTNS (Posterior Tibial Nerve Stimulation) treatment on the incidence and duration of RAS symptoms in patients undergoing anterior rectal resection with sphincter-sparing surgery.
时间窗: 12 months
Variables: Age (years), Sex (F/M), Gestation (Y/N), Births (Y/N), Tumor location (cm from anus), Radiotherapy (Y/N), Radiotherapy regimen (short/long), Neoadjuvant chemotherapy (Y/N), Surgical approach (open, laparoscopic,transanal/converted), Distance between anus and anastomosis (cm), Type of anastomosis (colorectal, coloanal, mechanical, manual, term-terminal, term-lateral), Performance of derivative stoma (Y/N), Extent of mesorectal excision (total/partial), Postoperative dehiscence (Y/N), Postoperative abdominal collection(Y/N). Postoperative bleeding (Y/N), Clavien-dindo classification. Time from surgery to stoma closure (months), sphincter disruption (Y/N), Manometry (mmHg), neurostimulation parameters: stimulation intensity (mA), foot (right/left), stimulus (sensitive/motor/both). LARS score (0-42)
Impact of PTNS on the quality of life (EORTC-QLQ C30)
时间窗: 12 months
To evaluate the impact of PTNS on the quality of life of patients undergoing anterior rectal resection with sphincter-sparing surgery (as assessed by the EORTC-QLQ C30 quality of life questionnaire). The "European organization for reseach and treatment of cáncer quality life questionnaire core 30" (EORTC-QLQ C30) is a cancer-specific, multidimensional questionnaire comprising 30 items on five scales (physical, functional, emotional, cognitive, social), three items on symptoms (fatigue, nausea/vomiting, pain), six single-item items (constipation, diarrhea, hyporexia, insomnia, dyspnea,economic difficulties) and others on a global state of health. The score is between 1 and 100, where the higher the score, the greater the decrease in quality of life.
次要结局
- Impact of PTNS on the quality of life (EORTC-QLQ C29)(12 months)
- LARS Scale(12 months)