Vanhu vazhinji vanofunga kuti kuvharika kweropa chinhu chakaipa.
Kuora kwetsinga dzemuuropi (cerebral thrombosis) uye kurwara kwemoyo (myocardial infarction) zvinogona kukonzera sitiroko, kuoma mitezo kana kutofa kamwe kamwe mumunhu ari mupenyu.
Zvechokwadi here?
Kutaura zvazviri, ropa rinobuda muropa (thrombus) inongova nzira yakajairika yekugwamba kweropa mumuviri wemunhu. Kana ropa risina kubuda muropa, vanhu vazhinji vanofa nekuda kwe "kurasikirwa neropa rakawanda".
Mumwe nemumwe wedu akakuvara uye akabuda ropa, senge kukuvara kudiki pamuviri, uko kuchabuda ropa nekukurumidza. Asi muviri wemunhu unozvidzivirira. Kuti ropa risabuda ropa kusvika rafa, ropa richagwamba zvishoma nezvishoma panzvimbo inobuda ropa, kureva kuti, ropa richagadzira thrombus mutsinga yeropa yakakuvara. Nenzira iyi, ropa harichazobudazve.
Kana kubuda ropa kwamira, muviri wedu unonyungudutsa thrombus zvishoma nezvishoma, zvichiita kuti ropa rifambe zvakare.
Nzira inogadzira thrombus inonzi coagulation system; nzira inobvisa thrombus inonzi fibrinolytic system. Kana tsinga yeropa yakuvara mumuviri wemunhu, coagulation system inotangwa nekukasika kudzivirira kubuda ropa kuenderera mberi; kana thrombus yaitika, fibrinolytic system inobvisa thrombus inotangwazve kuti inyungudise ropa rakagwamba.
Masisitimu maviri aya akaenzana zvine simba, zvichiita kuti ropa risagwambe kana kubuda ropa rakawanda.
Zvisinei, zvirwere zvakawanda zvinozokonzera kusashanda zvakanaka kwehurongwa hwekugwamba kweropa, pamwe nekukuvara kwe intima yetsinga yeropa, uye kumira kweropa kuchaita kuti hurongwa hwe fibrinolytic huve hwakanonoka kana kuti husakwanise kunyungudutsa thrombus.
Semuenzaniso, mu acute myocardial infarction, pane thrombosis mutsinga dzeropa dzemwoyo. Mamiriro etsinga dzeropa haana kunaka, pane kukuvara kwakasiyana-siyana kwemukati memoyo, uye pane stenosis, pamwe nekumira kweropa, hapana nzira yekunyungudutsa thrombus, uye thrombus icharamba ichikura.
Semuenzaniso, muvanhu vanogara vakarara kwenguva yakareba, ropa rinoyerera mumakumbo rinononoka, tsinga dzeropa dzinokuvara, uye thrombus inoumbwa. Thrombus icharamba ichinyunguduka, asi kumhanya kwekunyunguduka hakusi kukuru, inogona kudonha, yodzokera mutsinga dzemapapu pamwe chete neropa, yonamatira mutsinga dzemapapu, uye yokonzera pulmonary embolism, iyo inourayawo.
Panguva ino, kuitira kuchengetedza kuchengetedzwa kwevarwere, zvakakosha kuita thrombolysis nemaoko uye kubaya mishonga inoshandiswa kukurudzira thrombolysis, yakadai se "urokinase". Zvisinei, thrombolysis inowanzofanira kuitwa mukati menguva pfupi yethrombosis, senge mukati memaawa matanhatu. Kana ikatora nguva yakareba, haizonyungudike. Kana ukawedzera kushandisa mishonga yethrombolytic panguva iyi, inogona kukonzera kubuda ropa mune dzimwe nhengo dzemuviri.
Thrombus haigone kunyungudika. Kana isina kuvharika zvachose, "stent" inogona kushandiswa "kudhonza" tsinga yeropa yakavharika kuti ropa rifambe zvakanaka.
Zvisinei, kana tsinga yeropa ikavharika kwenguva yakareba, inokonzera ischemic necrosis yezvimiro zvakakosha zvenyama. Panguva ino, chete neku "pfuura" mimwe tsinga yeropa ndiyo inogona kuiswa "kudiridza" chidimbu ichi chenyama chakarasikirwa neropa rayo.
Kubuda ropa nekugwamba, thrombosis uye thrombolysis, ndiyo nzira inochengetedza mashandiro emuviri. Kwete izvozvo chete, kune nzira dzakawanda dzekuchenjera dziri mumuviri wemunhu, dzakadai setsinga yetsitsi uye tsinga yemudumbu, kuchengetedza kufara kwevanhu vasina kufara zvakanyanya; insulin neglucagon zvinodzora kuenzana kweshuga muropa revanhu; calcitonin neparathyroid hormone zvinodzora kuenzana kwecalcium muropa revanhu.
Kana kuenzana kwacho kwapera, zvirwere zvakasiyana-siyana zvinotanga kuoneka. Zvirwere zvakawanda mumuviri wemunhu zvinokonzerwa nekurasikirwa nekuenzana.
Kadhi rebhizinesi
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