Aortic valve

Aortic valve

Aortic valve (kubva pashoko rekuti aorta, kubva pashoko rechiGiriki rokuti aorta, rinoreva tsinga huru), inonziwo semilunar kana sigmoid vharafu, ivharuvhu iri padanho remoyo uye inoparadzanisa ventricle yekuruboshwe kubva kuaorta.

Anatomy yevharuvhu yeaortic

Nzvimbo yevhavha yeaortic. Iyo aortic valve inowanikwa pamwero wemoyo. Iyo yekupedzisira yakakamurwa kuita zvikamu zviviri, kuruboshwe uye kurudyi, chimwe nechimwe chine ventricle uye atrium. Kubva muzviumbwa izvi panobuda tsinga netsinga dzakasiyana siyana dzinosanganisira aorta. Ivhavhavha yeaortic inoiswa panzvimbo yeaorta pamwero we ventricle yekuruboshwe. (1)

mamiriro. Varuvhu ivharuvhu ine zvibodzwa zvitatu (2), kureva kuva nezvibodzwa zvitatu. Iyo yekupedzisira inoumbwa nelamina uye mapete e endocardium, iyo yemukati yemoyo. Yakanamirwa kumadziro emadziro, imwe neimwe yezvibodzwa izvi inoumba vharafu muchimiro chehafu-mwedzi.

Physiology / Nhoroondo

Ropa nzira. Ropa rinotenderera munzira imwe kuburikidza nemoyo uye nehurongwa hweropa. Atrium yekuruboshwe inogamuchira ropa rakapfuma-okisijeni kubva mutsinga dzemapapu. Ropa iri rinobva rapfuura nepakati pemitral valve kuti risvike kuventricle yekuruboshwe. Mukati mekupedzisira, ropa rinobva rapfuura nepakati peaortic valve kusvika kune aorta uye kugoverwa mumuviri wose (1).

Kuvhura / kuvhara valve. Kuvhura uye kuvhara kwevhavha yeaortic kunoenderana nekusiyana kwekumanikidzwa pakati pevheti yekuruboshwe uye aorta (3). Kana ventricle yekuruboshwe izere neropa kubva kuruboshwe rweatrium, ventricle inobvumirana. Kumanikidzwa mukati me ventricle kunowedzera uye kunoita kuti aortic valve ivhure. Ropa rinobva razadza mavharuvhu, rine mhedzisiro yekuvhara aortic valve.

Anti-Reflux yeropa. Ichiita basa rinokosha mukufamba kweropa, iyo aortic valve inodzivirirawo kudzoka kweropa kubva kune aorta kusvika kuruboshwe ventricle (1).

Valvulopathie

Valvulopathie. Inotaridza ese pathologies anobata mavharuvhu emoyo. Iyo nzira yeaya pathologies inogona kutungamirira kune shanduko muchimiro chemoyo nekuwedzerwa kweatrium kana ventricle. Zviratidzo zvemamiriro aya zvinogona kusanganisira kugunun'una kwemoyo, kuputika, kana kunyange kusagadzikana (4).

  • Aortic insufficiency. Iyo inonziwo kuvuza kwevharuvhu, chirwere chevharuvhu ichi chinofanana nekuvharika kwakashata kweaortic valve zvichiita kuti ropa riyerere neshure kuenda kuruboshwe. Zvikonzero zvechiitiko ichi zvakasiyana-siyana uye zvinogona kusanganisira kuderera kwezera, hutachiona kana endocarditis.
  • Aortic stenosis. Iyo inonziwo aortic valve narrowing, chirwere chevharuvhu ichi ndechimwe chezvakawanda kune vanhu vakuru. Inopindirana nekuvhura kusina kukwana kwevhavha yeaortic, kudzivirira ropa kubva pakutenderera zvakanaka. Zvikonzero zvinogona kunge zvakasiyana senge kuderera kwezera, hutachiona kana endocarditis.

Mishonga

Kurapwa. Zvichienderana nechirwere chevhavha uye kufambira mberi kwayo, mishonga yakasiyana-siyana inogona kurongerwa, somuenzaniso kudzivirira zvimwe zvirwere zvakadai se infective endocarditis. Mishonga iyi inogona zvakare kuve yakananga uye yakanangana nezvirwere zvakabatana (5).

Kuvhiya kurapa. Muchirwere chevharuvhu chepamusoro, kurapwa kwekuvhiya kunowanzoitwa. Kurapa kunogona kuve kugadziridzwa kweaortic valve kana kutsiva uye kuiswa kwemakanika kana biological valve prosthesis (bio-prosthesis) (4).

Kuongororwa kwevhavha yeaortic

Kuongorora kwepanyama. Kutanga, kuongororwa kwekliniki kunoitwa kuitira kutarisa kurova kwemwoyo kunyanya uye kuongorora zviratidzo zvinonzwisiswa nemurwere zvakadai sekupfupika kwekufema kana kuputika.

Chiremba imaging bvunzo. A cardiac ultrasound, kana kunyange doppler ultrasound inogona kuitwa. Vanogona kuwedzerwa ne coronary angiography, CT scan, kana MRI.

Electrocardiogramme d'effort. Muedzo uyu unoshandiswa kuongorora mashandiro emagetsi emoyo panguva yekuyedza muviri.

History

Charles A. Hufnagel, chiremba wokuvhiya wekuAmerica wezana remakore rechi20, ndiye akatanga kugadzira vharuvhu yemwoyo yakagadzirwa. Muna 1952, akadyara, mumurwere anotambura neaortic insufficiency, vharuvhu yakagadzirwa nekeji yesimbi ine bhora resilicone rakaiswa pakati payo (6).

1 Comment

  1. je mange quoi etant opérer valve aortique merci d.avance

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