Cancer Rectum, Cancer Vulva, Cancer Vagina
Conditions
Keywords
cooled radiofrequency , conventional radiofrequency
Brief summary
Pain associated with neoplasms may be of somatic, visceral, or neuropathic origin.Visceral pain or pain that is mediated by the sympathetic fibers in the perineal area associated with malignancy in the pelvis may be effectively treated with neurolysis of impar ganglion.In recent years, radiofrequency lesioning of the ganglion Impar has evolved as a novel non pharmacological technique for the management of patients suffering from intractable perineal pain.
Interventions
In Cooled RF, after placement of the introducer needle, the 18 gauge internally cooled RF electrode is used for 90 seconds at a temperature of 60°C.
In conventional RF group lesion will be performed at 80°C for 120 seconds.
In neurolytic block, Once the position of the needle tip confirmed, 4 - 6 mL of 8% phenol in saline will be injected followed by 1 mL of saline to avoid the deposition of phenol within the intervertebral disc material.
Sponsors
Study design
Eligibility
Inclusion criteria
1. Cancer patients aged from 20-70 years old, with lower third cancer rectum, caner vulva, cancer vagina and cancer perineum. 2. The intensity of perineal pain on VAS score ≥ 5. 3. Unsatisfactory treatment with tramadol (400 mg daily) , Pregabalin (150 mg daily) or presence of side effects of tramadol as headache, dizziness, constipation, rash, sweating, dry mouth. 4. Included participants should show adequate response to diagnostic ganglion impar block , i.e. reduction of VAS pain score \> 50% at least for 2 hours.
Exclusion criteria
1. Infection of the skin at or near site of needle puncture. 2. Coagulopathy or prolonged bleeding time. 3. Drug hypersensitivity or allergy to the studied drugs. 4. Central or peripheral neuropathy . 5. Significant organ dysfunction as respiratory , liver or renal failure. 6. Any psychiatric illness that would interfere with the perception and the assessment of pain. 7. Vertebral anomalies. \-
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Percentage of patients gaining ≥ 50% reduction of their pre procedural pain at VAS Score from baseline value. | 2 hours, 24 hours,1 week, 2 weeks, 1 month, 3 months. | Patients rate pain on a scale from 0-10, 0 being no pain and 10 being the worst pain imaginable. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Total Tramadol consumption | at 2 weeks, 1 month, 2 months and 3 months' post procedural. | we will measure consumption of tramadol either it increasing or decreasing . |
Other
| Measure | Time frame | Description |
|---|---|---|
| Patient's satisfaction by the Global Perceived Effect questionnaire | at baseline, 2 weeks, 1 month, 3 months. | provides patient feedback on your empathy and relationship-building skills during consultations. |