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P-103 A systematic review of the effectiveness of palliative interventions to treat rectal tenesmus in cancer
  1. Aine Ni Laoire1,
  2. Lucy Fettes2 and
  3. Fliss E M Murtagh2
  1. 1Milford Care Centre, Ireland
  2. 2Cicely Saunders Institute Kings College London, UK

Abstract

Background Rectal tenesmus is a distressing symptom in patients with advanced cancer and challenging to treat. There is lack of consensus on the appropriate management of rectal tenesmus in this patient population.

Aim To identify and examine the effectiveness of interventions to palliate rectal tenesmus caused by advanced cancer when surgery, radiotherapy or chemotherapy are no longer treatment options.

Design A systematic review of the literature following standard systematic review methodology and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidance.

Data sources A comprehensive search of the electronic databases MEDLINE, EMBASE and the Cochrane Library was conducted from the date of inception to April 2016. PubMed “related articles”, grey literature, and hand-searches of the bibliographies of relevant papers and textbooks were also performed. Non-cancer patients were excluded. Any studies involving surgery or radiotherapy to treat tenesmus were excluded. Studies involving interventions to treat pelvic pain syndromes without specific outcome measures on severity of tenesmus were excluded. The quality of the studies was assessed using a National Institute for Health and Clinical Excellence recommended quality assessment tool.

Results From 861 studies, nine met full criteria and were selected. All were case series investigating the use of pharmacological interventions (diltiazem, nifedipine, methadone, mexiletine hydrochloride, lidocaine, bupivacaine), anaesthetic interventions (lumbar sympathectomy, neurolytic superior hypogastric plexus block), and endoscopic laser interventions. The included studies showed substantial heterogeneity and therefore a meta-analysis was not feasible.

Conclusion From this review we identified a significant gap in research into the palliation of rectal tenesmus. A multimodal approach may be necessary due to the complexity of the pathophysiology of tenesmus. Future research in this area should focus on randomised controlled trials of drug therapies whose potential effectiveness is suggested by case series’.

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