Kugwiritsa ntchito UV phototherapy pochiza psoriasis

Psoriasis, ndi matenda a pakhungu osatha, obwerezabwereza, otupa komanso ozungulira omwe amayamba chifukwa cha majini ndi chilengedwe.Kuwonjezera pa zizindikiro za pakhungu, padzakhalanso zotupa za mtima, kagayidwe kachakudya m'thupi, kugaya chakudya ndi matenda ena oopsa komanso matenda ena ambiri. Ngakhale kuti si matenda opatsirana, amavulaza khungu kwambiri ndipo amakhudza kwambiri maonekedwe, zomwe zimadzetsa mavuto aakulu akuthupi ndi m'maganizo kwa odwala komanso zimakhudza kwambiri moyo wawo.

Kotero, kodi ultraviolet phototherapy imagwira ntchito bwanji pochiza psoriasis?

1.Tchithandizo cha psoriasis chachikhalidwe

Mankhwala opangidwa ndi topical ndiye mankhwala akuluakulu a psoriasis yofatsa mpaka yapakatikati. Chithandizo cha mankhwala opangidwa ndi topical chimadalira zaka za wodwalayo, mbiri yake, mtundu wa psoriasis, momwe matenda ake adayambira komanso zilonda zake.

Mankhwala omwe amagwiritsidwa ntchito kwambiri ndi glucocorticoids, vitamini D3 derivatives, retinoic acid ndi zina zotero. Kugwiritsa ntchito mankhwala omwa kapena zinthu zina monga methotrexate, cyclosporine ndi retinoic acid kumalimbikitsidwa kwa odwala omwe ali ndi psoriasis ya scalp yomwe imabwera ndi zilonda zapakati mpaka zazikulu.

 2.Tmakhalidwe a ultraviolet phototherapy

Kuchiza ndi kuwala kwa dzuwa (ultraviolet phototherapy) ndi njira yabwino kwambiri yothandizira psoriasis kuwonjezera pa mankhwala. Kuchiza ndi kuwala kwa dzuwa (phototherapy) makamaka kumayambitsa apoptosis ya maselo a T m'matenda a psoriatic, motero kuletsa chitetezo cha mthupi chomwe chikugwira ntchito mopitirira muyeso ndikulimbikitsa kubwerera kwa zilonda.

Makamaka imaphatikizapo BB-UVB(>280~320nm), NB-UVB(311±2nm), PUVA(yomwe imachiritsa pakamwa, yosambira ndi ya m'deralo) ndi mankhwala ena. Mphamvu yochiritsa ya NB-UVB inali yabwino kuposa BB-UVB ndipo inali yofooka kuposa PUVA pochiza psoriasis pogwiritsa ntchito UV. Komabe, NB-UVB ndiye mankhwala ogwiritsidwa ntchito kwambiri a ultraviolet omwe ali ndi chitetezo chapamwamba komanso osavuta kugwiritsa ntchito. Chithandizo cha UV cha pamwamba chimalimbikitsidwa pamene khungu lili lochepera 5% ya malo onse a thupi. Ngati khungu lili loposa 5% ya malo a thupi, chithandizo cha UV cha systemic chimalimbikitsidwa.

 3.Chithandizo cha psoriasis cha NB-UVB

Pochiza psoriasis, gulu lalikulu la UVB limagwira ntchito bwino lili pakati pa 308 ~ 312nm. Gulu logwira ntchito la NB-UVB (311±2nm) pochiza psoriasis ndi loyera kuposa la BB-UVB (280~320nm), ndipo zotsatira zake zimakhala bwino, pafupi ndi zotsatira za PUVA, ndipo zimachepetsa erythematous reaction yomwe imachitika chifukwa cha gulu losagwira ntchito. Chitetezo chabwino, palibe mgwirizano ndi khansa ya pakhungu womwe wapezeka. Pakadali pano, NB-UVB ndiye njira yodziwika kwambiri yochizira psoriasis.