Kukosha kweHibernating Myocardium
Q. Murume wangu ane mwoyo wekukundikana nekuda kwehutano hwake hwehutano hwehutano. Chiremba wokutanga watakamuona akamuudza kuti kupfurikidza nekuvhiya kwaisazoita chero chinhu chakanaka nokuti arteri yakavharidzirwa inopa hutumbu hwemwoyo hwakatofa. Asi chipiri chiremba anoti zvinogona kuita kuti musuru wemiviri usakanganiswa zvachose, asi kungo "hibernating." Anotaura kuti kupfurikidza nekuvhiya kunogona kubvumira mutsara "kumuka," uye mwoyo wake kukundikana kuvandudza. Iwe unogona kundiudzei pamusoro pekunyanya kukanganisa mwoyo mushure, uye iwe unofunga kuti wechipiri wezvemapurisa angave akarurama here?
Mhinduro:
Pfungwa inokosha ye "hibernating myocardium" (myocardium inoreva musimba wemwoyo) ichiri kuratidzika sechinhu chekunze kune vamwe vanachiremba, asi mapadiologist anoziva. Mune vamwe vanhu vane coronary artery disease (CAD) , zvikamu zvemuviri wemwoyo zvinenge zvichiita kukuvadza zvakanyanya uye zvisingaiti zvakanaka zvichinyatsogoneka, uye zvinogona "kumutswa" kana ropa richidzorerwa.
Zvave zvichifungidzirwa kuti pakati pe20 kusvika ku50% yevanhu vane mwoyo wekukundikana kunokonzerwa neCAD vane zvakawanda zvakanyanya zvehubernating myocardium, uye naizvozvo, vane mukana wekuona kubudirira kunobatsira kana ropa richiyerera rinogona kudzorerwa kumutsipa wavo wepfungwa.
Nzira "Yekare" yekufunga Nezvemwoyo Musungo
Chirongwa chezvechirongwa chetsika hachina kusiya nzvimbo yechinhu chakadai sokuchiraira myocardium.
Mutsipa wemwoyo unoshanda nenzira yakawanda chero bedzi paine kukwana kweropa. Kana kubuda ropa kunenge kusina kukwana kugadzirisa zvinodiwa nemutsipa wemwoyo (somuenzaniso, apo munhu ane CAD anotanga kuedza kushandisa), musuru unova nguva inenge ischemic (yaziya nenzara), uye angina inogona kuitika.
Ischemic Heart muscle haisi kushanda zvakanaka. Kutaura zvazviri, kugadzira echocardiogram panguva yekurovedza muviri ndiyo imwe nzira yekuziva nayo ischemia, sezvo kuongorora kwe echo kunogona kufungidzira zvikamu zvemutsipa wemwoyo izvo zvinokundikana kubvumirana zvakajeka pazvinenge zvichitorerwa oksijeni yakakwana.
Nzira iyo vanachiremba vaiwanzofunga pamusoro peCAD, zvimwe ischemia yaizoenda nokukurumidza (nokuti, somuenzaniso, munhu ane CAD aizorega kushandisa nguva apo angina akaonekwa), kana kuti ischemia yaizopfuurira kusvikira kurwisa kwemwoyo (myocardial infarction, kana kufa kwemoyo tsvina) yakaitika.
Saka chikoro, myocardium inopiwa nechirwere chetachiona chinorwara inogona kuva mune chimwe chezvikamu zvitatu zvinoreva: zvakajairika, ischemic, kana kufa.
Asi zvinoshanduka kuti mutsara wemwoyo unogonawo kuramba uri munharaunda yechina, nyika inonzi inonzi hibernation.
Chii Chinonzi Hibernating Myocardium?
Hibernating myocardium ndiyo chete inonzwika sei. Kufanana nebere rinoputira mukati mechando, pasinei nekuonekwa kwose hibernating moyo muscle hauna kufa, asi pane kungofunga kuti "dormant" mamiriro ezvinhu. Izvo hazvisisiri kushanda zvakajairika - hazvibvumirane nemoyo mumwe nomumwe, uye hazvipi zvayo kune basa remoyo.
Asi hazvinawo kufa. Inongova mumamiriro ezvinhu ekuzvidzivirira kusakwanisa kuita. Iyo yakavhara imwe neimwe yemabasa ayo isiri iyo inonyanya kutsoropodza kuti igare yakararama.
Mutsipa wemwoyo unogona kupinda munharaunda yehubernation apo CAD yakaoma zvakakwana kuti ikwanise kubudisa ischemia iyo isingagumi uye inogara iripo nguva dzose, pane iyo inowanzoita ischemia inouya uye inoenda zvishoma nezvishoma (iyo ndiyo inowanikwa nevanhu vakawanda vane angina). Saka, zvinonyanya, mushumo wemwoyo hauna kunyanya kuwanika ropa rakakwana kuti ushande zvakanaka, asi-zvinongova - zvishoma-kutora ropa rakakwana kuti urambe uri mupenyu.
Nei Hibernating Myocardium Inokosha?
Hibernating heart muscle ndiyo pfungwa inokosha nokuti mutsara unenge uchigonekana, uye hibernation inogona kushandurwa.
Kana kuwedzerwa ropa kwemuviri kunogona kudzorerwa - kuburikidza nekuvhiyiwa kana kupisa -kune chiitiko chakanakidza chine hibernating myocardium inogona "kumuka," ndokutanga zvakare kugovera kuita basa remwoyo. Mune munhu ane kukanganisa kwemwoyo , izvi zvinowedzera kushanda kwepfungwa zvinogona kuita misiyano yose.
Munyaya yemurume wako Zvinonzwika sechipiri chiremba akaona uchapupu hwokuti murume wako angave ane hibernating myocardium, uye iyo inotanga imwe kana yakawanda yemishonga yake yerononi ine chirwere ichi inogona kubvumira kuti chikamu chemukati wemwoyo wake chitange kushanda zvakare.
Iko kune miedzo inokosha iyo ma cardiologists vanogona kuita kubatsira kusiyanisa hibernating myocardium kubva mumutsipa wemwoyo izvo zvisingakwanisi (kureva, vakafa), kusanganisira zvidzidzo zveMRI , uye kuongororwa kwakaitwa echocardiographic test.
The Bottom Line
Sezvo rudzi urwu rwekuedzwa rusingarambi uye risina ngozi, kushandisa mukana wekuita hibernating myocardium kunogona kunge kwakanyatsonaka mumurume wako.
Kana kuongororwa uku kuchiratidza kuti anokwanisa kuva nehuwandu hwakawanda hwekuchengetedza myocardium, ipapo "kumuka" chikamu chemuviri wemutsipa chinogona kuvandudza mwoyo wake kukundikana zvikuru. Saka zvingaita kuti pfungwa dzakawanda dzirambe dzichifunga zvakasimba kuti chirwere chinonzi chirwere chinonzi cardiologist chiri kukurudzira kana kuongorora kunotsigira kuvapo kwehubernating myocardium.
> Sources:
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> Kim SJ, Peppas A, Hong SK, et al. Kuramba Kunoshamisa Kunobatsira Myocardial Hibernation uye Kudzivirirwa: Rwizi / Basa uye nzira dzeMetabolic. Circ Res 2003; 92: 1233.
> Parasher PS, Daher IN. Myocardial Recovery mushure meHypoxia: Inoshamisa Kudzorera. Echocardiography 2008; 25: 1011.
> Rahimtoola SH, La Canna G, Ferrari R. Hibernating Myocardium: Chimwe Chikamu chePisidho Chinoputika. J Am Coll Cardiol 2006; 47: 978.
> Yancy CW, Jessup M, Bozkurt B, et al. 2013 ACCF / AHA Guideline For The Management Of Heart Kusagadzikana: Nyaya yeAmerican College of Cardiology Foundation / American Heart Association Task Force pamusoro Pemitemo Yezvokuita. J Am Coll Cardiol 2013; 62: e147.