Bvunzo yeFree Prostate-Specific Antigen (f-PSA) ipfungwa huru yekuongorora urological yemazuva ano, ichiita basa rinokosha mukuongorora njodzi yekenza yeprostate. Kukosha kwayo hakusi kwechishandiso chekuongorora chega asi sechimwe chinhu chakakosha chekuongorora PSA (t-PSA) yese, ichisimbisa zvikuru kururama kwekuongorora uye ichitungamira sarudzo dzakakosha dzekiriniki, kunyanya nekubatsira kudzivirira nzira dzisina kukodzera dzekurapa.

Dambudziko guru pakuongororwa kwekenza yeprostate nderekusanyatsojeka kwe t-PSA. Kuwanda kwe t-PSA (zvinowanzo taurwa kuti >4 ng/mL) kunogona kukonzerwa nekenza yeprostate, asiwo nezvirwere zvisina njodzi zvakaita seBenign Prostatic Hyperplasia (BPH) uye prostatitis. Izvi zvinogadzira "nzvimbo isina kuchena yekuongorora," kunyanya kune t-PSA values ​​iri pakati pe4 ne10 ng/mL. Kune varume vari muchikamu ichi, sarudzo yekuti voenderera mberi ne prostate biopsy here—nzira inopindwa muropa ine njodzi dzakadai sekubuda ropa, hutachiona, uye kusagadzikana—inova yakaoma. Mumamiriro ezvinhu aya ndipo panoratidza kukosha kwayo kukuru.

Kukosha kukuru kwe f-PSA kuri mukukwanisa kwayo kunatsiridza kuongororwa kwenjodzi kuburikidza ne f-PSA kusvika ku t-PSA ratio (percentage free PSA). Panyaya yemakemikari, PSA inowanikwa muropa mumhando mbiri: yakabatana nemapuroteni uye yakasununguka. Tsvagiridzo yagara ichiratidza kuti huwandu hwe f-PSA hwakaderera muvarume vane kenza yeprostate zvichienzaniswa neavo vane BPH. Masero ane njodzi anowanzo gadzira PSA inopinda muropa uye inova nyore kusungwa, zvichikonzera huwandu hwakaderera hwehuwandu hwakasununguka. Kusiyana neizvi, huwandu hwakawanda hwe f-PSA hunowanzo batanidzwa nekukura kwemuviri.

Musiyano uyu wemakemikari unoshandiswa pakuongorora huwandu hwePSA isina ropa. PSA yakaderera isina ropa (semuenzaniso, iri pasi pe10-15%, ine miganho chaiyo inosiyana) inoratidza mukana wepamusoro wekenza yeprostate uye inotsigira zvakasimba kurudziro ye biopsy yeprostate. Kusiyana neizvi, PSA yakawanda isina ropa (semuenzaniso, iri pamusoro pe20-25%) inoratidza mukana wakaderera wekenza, zvichiratidza kuti kuwedzera kwe t-PSA kunonyanya kukonzerwa neBPH. Muzviitiko zvakadaro, chiremba anogona kukurudzira nechivimbo nzira yekutarisa inoshanda—inosanganisira kuongororwa kwePSA kudzokorora uye kuongororwa kwedhijitari rectal nekufamba kwenguva—pane biopsy yekukurumidza.

Nekuda kweizvozvo, chinhu chimwe chete chakakosha pakuongororwa kwe f-PSA ndechekudzikiswa kukuru kwe biopsy yeprostate isina basa. Nekupa ruzivo urwu rwakakosha rwekusarura, bvunzo iyi inobatsira kudzivirira varume vazhinji kuti vasaite oparesheni yavasingadi, nokudaro ichideredza kurwara kwevarwere, ichideredza mari yehutano, uye ichideredza kuzvidya mwoyo kwakakosha kunokonzerwa ne biopsy uye kumirira mhedzisiro yayo.

Kupfuura nzvimbo yegrey ye4-10 ng/mL, f-PSA inokoshawo mune dzimwe mamiriro ezvinhu: kune varume vane t-PSA inoramba ichikwira pasinei ne biopsy yekare, kana kunyange kune avo vane t-PSA yakajairika asi bvunzo yedhijitari isina kujairika. Iri kuramba ichibatanidzwa mumakarukureta engozi akawanda kuti iongororwe zvizere.

Mukupedzisa, kukosha kwekuongororwa kwe f-PSA hakugone kupfuudzwa zvakanyanya. Inoshandura mhedzisiro ye t-PSA isina kujeka kuita chishandiso chine simba uye chakangwara chekuongorora. Nekugonesa kupatsanura njodzi mukati menzvimbo isina kujeka yekuongorora, inopa simba vanachiremba kuti vaite sarudzo dzakanyatsojeka, dzakavakirwa pauchapupu, pakupedzisira vachivandudza kutarisirwa kwevarwere nekuderedza zvakachengeteka kuongororwa kwakanyanya uye kurapwa kwakanyanya uku vachiona kuti varume vari panjodzi huru vanozivikanwa uye vanoongororwa nekukurumidza.