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Assessment of pain intensity on the NRS. Assessment of the quality of life by SF-36 and AIS. Diagnostic/prognostic nerve block with 5 ml of 2% lidocaine under real-time ultrasound control with confirmation of the correct position of the needle using a peripheral nerve stimulator.
Reassessment of pain intensity on the NRS 30 minutes after local anesthetic block.
Cryoablation under real-time ultrasound control if the NRS value is reduced by ≥ 2 points.
If pain intensity on the NRS reduced by less than 2 points, reassessment 60 minutes after local anesthetic block.
Cryoablation under real-time ultrasound control if the NRS value is reduced by ≥ 2 points.
If pain intensity on the NRS reduces by less than 2 points 60 minutes after local anesthetic block cryoablation will not be performed.
Cryoablation effect will be evaluated 24 hours, 7 days, 30 days, 3 months, 6 months post procedure.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| cryoablation | Other | peripheral nerve cryoablation |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| cryoablation | Procedure | cryoablation of nerve responsible for phantom limb pain |
|
| Measure | Description | Time Frame |
|---|---|---|
| Reduction of pain | Assessment of pain intensity pre- and post - cryoablation on the NRS (numeric rating scale). Numeric Rating Scale (NRS) is a unidimensional measure of pain intensity in adults. This is a 11-point numeric scale ranges from '0' (minimum, "no pain") to '10' (maximum, "pain as bad as one can imagine"). The lower the NRS value, the better clinical outcome. | T1: before cryoablation; T2: 24 hours after cryoablation; T3: 7 days after cryoablation; T4: 30 days after cryoablation; T5: 3 months after cryoablation; T6: 6 months after cryoablation. |
| Measure | Description | Time Frame |
|---|---|---|
| The quality of life (SF-36) | Assessment of the quality of life pre- and post - cryoablation on SF-36. 36-Item Short Form Survey (SF-36) is a 36-item questionnaire which measures quality of life across eight domains: physical functioning, role limitations due to physical health, role limitations due to emotional problems, energy/fatigue, emotional well-being, social functioning, pain, and general health. For each of the eight domains that the SF36 measures an aggregate percentage score is produced. The percentage scores range from 0% (lowest or worst possible level of functioning) to 100% (highest or best possible level of functioning). |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Dariusz Tomaszewski, MD PhD | Contact | 00 48501 190 386 | dtomaszewski@wim.mil.pl | |
| Jaroslaw J Les, MD PhD | Contact | 00 48 695 926 026 | jles@wim.mil.pl |
| Name | Affiliation | Role |
|---|---|---|
| Dariusz Tomaszewski | Military Institute of Medicine | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Military Institute of Medicine | Recruiting | Warsaw | 04141 | Poland |
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| ID | Term |
|---|---|
| D010591 | Phantom Limb |
| D009437 | Neuralgia |
| ID | Term |
|---|---|
| D010468 | Perceptual Disorders |
| D019954 | Neurobehavioral Manifestations |
| D009461 | Neurologic Manifestations |
| D009422 | Nervous System Diseases |
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| ID | Term |
|---|---|
| D003452 | Cryosurgery |
| ID | Term |
|---|---|
| D055011 | Ablation Techniques |
| D013514 | Surgical Procedures, Operative |
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Single Group Assignment
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| A1: before cryoablation; A2: 24 hours after cryoablation; A3: 30 days after cryoablation; A4: 6 months after cryoablation. |
| The quality of life (AIS) | Assessment of the quality of life pre- and post - cryoablation on AIS. The Acceptance of Illness Scale (AIS) consists of eight statements describing negative impact of poor health status and its consequences for patients' functioning. The scoring for each statement varies from 1 (poor adaptation to the disease) to 5 (full acceptance of the disease). The total score ranges between 8 and 40. The lower score, the poorer acceptance of disease and more severe restrictions caused by condition. A high score means acceptance of patient's own health status and lack of negative emotions related to illness. | A1: before cryoablation; A2: 24 hours after cryoablation; A3: 30 days after cryoablation; A4: 6 months after cryoablation. |
| D010149 | Pain, Postoperative |
| D011183 | Postoperative Complications |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D012816 | Signs and Symptoms |
| D010146 | Pain |
| D010523 | Peripheral Nervous System Diseases |
| D009468 | Neuromuscular Diseases |