Percutaneous Intercostal Cryoneurolysis is a promising technique that addresses acute postoperative pain after Nuss procedure for pectus excavatum. However its onset timing has not yet been determined. A physical examination would assess the variation of chest skin sensitivity to soft touch, cold (water at 4°C), and heat (water at 40°C) through days following the cryoneurolysis procedure.
Study Type
OBSERVATIONAL
Enrollment
20
soft touch and thermal (cold and warm) examination
Papa Giovanni XXIII Hospital
Bergamo, BG, Italy
RECRUITINGthermal sensitivity
Chest skin thermal sensitivity will be assessed through a "thermofeel" metal instrument set at two different temperatures: 15°C for cold sensation and 40°C for warm sensation. At least 4 different chest zones will be tested to discriminate potential differences. As a validated instument for chest skin thermal assessment does not exist, we will report only qualitative results, as "normal" "impaired" or "absent" sensitivity.
Time frame: one week (median)
chest skin sensitivity to touch
Chest skin mechanical sensitivity will be assessed through both validated von Frey filament testing, and cotton swab for soft touch. At least 4 different chest zones will be tested to discriminate potential differences. We will report qualitative results, as "normal" "impaired" or "absent" sensitivity.
Time frame: one week (median)
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