Biomedical subjects

O Calvillo

Publications and source records attributed to O Calvillo.

21 records · Page 2Linked to original sources

PubMedDate not supplied

Thermal grill illusion and complex regional pain syndrome type I (reflex sympathetic dystrophy).

BACKGROUND AND OBJECTIVES: In normal humans, placing a hand on a thermal grill containing warm elements separated by cool ones produces a burning sensation. In this case report, responses to a thermal grill in a patient with neuropathic pain were examined. METHODS: The responses of a 31-year-old woman with complex regional pain syndrome type I (reflex sympathetic dystrophy) to a thermal grill were evaluated before and after stellate ganglion block. RESULTS: The patient experienced a burning sensation when the unaffected hand was placed on the grill and could distinguish which element was warm and which was cool. An intolerable burning sensation caused the patient to quickly (within 4 seconds) withdraw the affected hand when it was placed on the grill. Touching cool elements with the affected hand produced an intense burning sensation (cold allodynia), whereas touching warm elements produced a pleasant warm sensation. Stellate ganglion block with phenol, local anesthetic, and steroid resulted in long-lasting absence of cold allodynia. CONCLUSION: The thermal grill may be a useful a tool to help understand the pathophysiology of complex regional pain syndrome type I.

Adult↗

PubMedDate not supplied

Viscosupplementation: a new concept in the treatment of sacroiliac joint syndrome: a preliminary report of four cases.

BACKGROUND AND OBJECTIVES: We describe a new therapeutic modality for sacroiliac joint syndrome that represents an alternative to other treatment modalities. We report on four cases of sacroiliac joint syndrome with severe pain. METHODS: Three patients had undergone operative treatment of the lumbar spine and one patient suffered from severe osteoarthritis of the spine. All patients were diagnosed with sacroiliac joint syndrome by means of patient history, physical examination, and intra-articular local anesthetic injection preceded by sacroiliac arthrogram. All patients received three injections of Hylan GF 20 in the sacroiliac joints 2 weeks apart. RESULTS: Twelve to 16 weeks after the injections, the pain was reported to be 40-67% better when measured on the visual analog scale. The duration of the beneficial effect of Hylan on arthralgia and joint function was undetermined. CONCLUSIONS: Viscosupplementation of the sacroiliac joint induced a significant degree of analgesia in all four patients. This treatment modality could represent an option in the management of sacroiliac joint pain and dysfunction.

Adult↗

PubMedDate not supplied

Computed tomography-guided pudendal nerve block. A new diagnostic approach to long-term anoperineal pain: a report of two cases.

OBJECTIVE: To show the value of computed tomography (CT) in selectively blocking the pudendal nerve in patients with long-term anogenital pain of uncertain etiology. We report a technique to selectively block the pudendal nerve using CT guidance in 2 patients with long-term anogenital pain. CASE REPORT: In 1 patient, a competitive cyclist, the diagnosis of pudendal neuralgia was substantiated by blocking the nerve under CT. The procedure relieved the pain for approximately 24 hours. In the other patient, pudendal nerve block produced perineal analgesia but no pain relief. Superior hypogastric plexus block relieved the pain significantly for about 4 weeks on 2 separate occasions, suggesting sympathetically maintained pain. CONCLUSION: The use of CT to guide the procedure allowed precision in performing the procedure and in making a differential diagnosis.

Adult↗