Ukwelashwa kwe-PUVA

Ukwelashwa kwe-PUVA

I-PUVA therapy, ebizwa nangokuthi i-photochemotherapy, iwuhlobo lwe-phototherapy oluhlanganisa ukukhanyisela umzimba ngemisebe ye-Ultra-Violet A (UVA) kanye nokuthatha isidakamizwa esenza i-photosensitizing. Kuboniswa ikakhulukazi ezinhlotsheni ezithile ze-psoriasis.

 

Kuyini ukwelashwa kwe-PUVA?

Incazelo yokwelashwa kwe-PUVA 

Ukwelashwa kwe-PUVA kuhlanganisa ukuvezwa komthombo wokufakelwa wemisebe ye-UVA nokwelashwa okususelwa ku-psoralen, umkhiqizo wokukhuthaza i-UV. Ngakho-ke isifinyezo esithi PUVA: P kubhekiswa kuPsoralen naku-UVA kwimisebe ye-ultraviolet A.

Isimiso

Ukuvezwa ku-UVA kuzodala uketshezi lwezinto ezibizwa ngama-cytokines, azoba nezenzo ezimbili:

  • isenzo okuthiwa i-antimitotic, esizokwehlisa ukwanda kwamaseli e-epidermal;
  • isenzo se-immunological, esizokwehlisa ukuvuvukala.

Izinkomba ze-PUVA-therapy

Inkomba eyinhloko yokwelashwa kwe-PUVA ukwelashwa kwe-psoriasis vulgaris (amaconsi, izindondo noma amabala) aqatha ezindaweni ezinkulu zesikhumba.

Njengesikhumbuzo, i-psoriasis isifo esivuthayo sesikhumba ngenxa yokuvuselelwa okusheshayo kwamaseli e-epidermis, ama-keratinocyte. Njengoba isikhumba singenaso isikhathi sokuzisusa, i-epidermis iyajiya, izikali ziyanqwabelana bese ziyavela, zishiya isikhumba sibomvu futhi sivuvukele. Ngokunciphisa ukuvuvukala futhi unciphise ukwanda kwamaseli e-epidermal, i-PUVAtherapy isiza ukunciphisa amapuleti e-psoriasis futhi ikhiphe indawo yokuqhuma.

Ezinye izinkomba zikhona:

  • i-atopic dermatitis lapho ukuqubuka kubaluleke kakhulu futhi kumelana nokunakekelwa kwendawo;
  • i-lymphomas yokuqala ye-cutaneous;
  • ama-photodermatoses, njenge-summer lucitis ngokwesibonelo, lapho ukwelashwa kokuvikela izithombe nokuvikelwa yilanga kunganele;
  • i-polycythemia pruritus;
  • isikhumba se-lichen planus;
  • ezinye izimo ze-alopecia areata ezinzima.

Ukwelashwa kwe-PUVA ekusebenzeni

Uchwepheshe

Amaseshini e-PUVA-therapy anqunywa udokotela wesikhumba futhi enzeka ehhovisi noma esibhedlela esifakwe ikhabethe le-irradiation. Zimbozwe yi-Social Security ngemuva kokwamukelwa kwesicelo sesivumelwano sangaphambilini.

Inkambo yeseshini

Kubalulekile ukuthi ungafaki lutho esikhunjeni ngaphambi kweseshini. Emahoreni amabili ngaphambili, isiguli sithatha i-psoralen ngomlomo, noma ngaphezulu ngokungajwayelekile, ngokufaka ingxenye yomzimba noma umzimba wonke kusixazululo esinamandla se-psoralen (balneoPUVA). I-Psoralen ingumenzeli we-photosensitizing okwenza ukuthi kwandiswe ukusebenza kahle kokwelashwa kwe-UV.

I-UVA ingalawulwa kuwo wonke umzimba noma endaweni (izandla nezinyawo). Iseshini ithatha imizuzu emi-2 kuye kweyi-15. Isiguli sinqunu, ngaphandle kwezitho zangasese, futhi kufanele sigqoke izibuko ezimnyama ezikhanyayo ukuze sizivikele emisebeni ye-UVA.

Ngemuva kweseshini, kubalulekile ukuthi ugqoke izibuko zelanga futhi uvikele ukukhanya kwelanga okungenani amahora ayisithupha.

Ukuvama kwamaseshini, ubude bawo kanye nokwelashwa kunqunywa yi-dermatologist. Isigqi samaseshini ngokuvamile amaseshini ambalwa ngeviki (ngokuvamile amaseshini ama-3 ahlukaniswe ngamahora angama-48), alethe imithamo ekhuphuka kancane kancane ye-UV. Cishe izikhathi ezingama-30 ziyadingeka ukuthola umphumela oyifunayo.

Kungenzeka ukuhlanganisa ukwelashwa kwe-PUVA nokunye ukwelashwa: i-corticosteroids, i-calcipotriol, i-retinoids (re-PUVA).

Izimo

Ukwelashwa kwe-PUVA kuyaphikiswa:

  • ngesikhathi sokukhulelwa kanye ne-lactation;
  • uma kwenzeka kusetshenziswa imishanguzo yokuthwebula izithombe;
  • ukwehluleka kwesibindi nezinso;
  • izimo zesikhumba ezibangelwe noma zenziwa zimbi ngokukhanya kwe-ultraviolet;
  • umdlavuza wesikhumba;
  • umonakalo ekamelweni langaphambili leso;
  • ukutheleleka okunamandla.

Imiphumela emibi kanye nezingozi

Ingcuphe enkulu, uma kwenzeka izikhathi eziningi zokwelashwa kwe-PUVA, ileyo yokuba nomdlavuza wesikhumba. Le ngozi ilinganiselwa ukuthi izokhuphuka lapho inani leseshini, lihlangene, lidlula ama-200-250. Futhi ngaphambi kokumisela amaseshini, udokotela wesikhumba wenza ukuhlolwa okuphelele kwesikhumba ukuthola esigulini ubungozi bomdlavuza wesikhumba (umlando womuntu siqu womdlavuza wesikhumba, ukuvezwa kwangaphambilini kuma-X-ray, ubukhona bezilonda zesikhumba zangaphambi komdlavuza, njll.). Ngasikhathi sinye, kunconywa ukuqapha unyaka nonyaka kwesikhumba kubantu abathole izikhathi ezingaphezu kuka-150 ze-phototherapy sessions, ukuze kutholakale izilonda ezingapholi noma umdlavuza wokuqala kusenesikhathi.

Imiphumela emibi ibhekwa njalo:

  • isicanucanu ngenxa yokuthatha iPhoralen;
  • ukoma kwesikhumba okudinga ukusetshenziswa kwe-emollient;
  • ukwanda kwezinwele ezizofiphala lapho amaseshini eyeka.

shiya impendulo