Stenting pakati nhumbi mwoyo

Nokuti pakurapa nechirwere chemwoyo, icho inobva aienda pamusoro coronary arteries (ivo zvokudya myocardium), muna 1977 chibharuma angioplasty rwengarava izvi zvaiitwa kekutanga. Kazhinji, chikonzero aienda pamusoro arteries vari mafuta deposits pamusoro intima midziyo, iyo inotungamira kuti kukwana wedzerai reokisijeni kuti cardiomyocytes. Somugumisiro, kukura angina uye myocardial infarction.

Chibharuma angioplasty chidobi kunobva pakuti mwoyo kuburikidza ari femoral tsinga zvokudya anobudisa mushonga zvishoma nezvishoma pamusoro kuguma iri imwe cuff (chibharuma deflated). Under X-ray kudzora anobudisa mushonga zvishoma nezvishoma uchaguta zvakananga nzvimbo aienda, uye ipapo chibharuma iri inflated - the tsinga iri kuwedzera. Nzira anopa zvakanaka, asi kazhinji kuitazve (tsinga apiwa Narrows, uye yekudyidzana).

Kuti vawedzere kubudirira chibharuma angioplasty, vanachiremba zvakagadzira nzira itsva - cardiac vascular stenting. A stent chinhu esimbi tubular pajira riya, rudzi Stainless simbi puranga. Mukati tsinga, izvozvo anowedzera, kwete kuubvumira spasm. Heart vascular stenting rinoitwa nevanhu vakasiyana zvinhu zvine ehupfumi zvakasiyana. Of mubereko mukuru vari stents dziri zvinenge zvakazara polymeric zvinhu uye somushonga zvinhu (semuenzaniso, cytotoxic anticancer zvinodhaka). Stenting rwengarava zvomwoyo catheters yakadaro kunogona kuderedza mwero inotungamirwa atherosclerotic plaques. Asi zvinokosha kuyeuka kuti nokushandisa stents izvi mwero nokuporesa yomukati madziro arteries zvinoderedza, ndiro chinhu chinoita kuti thrombosis ngozi.

Stenting rwengarava komoyo anawo nzira sezvo chibharuma angioplasty. Pane chimwe chete musiyano panguva chibharuma stent vakapfeka, Coated nevamwe. Pakusuma anobudisa mushonga zvishoma nezvishoma kunyika iri coronary tsinga mumuhara hwaputswa, uye ipapo kudza ari chibharuma, kuti stent nokuti kuswatura nzvimbo imwe tsinga iri kujekesa. Saka, akawedzera tsinga rusvingo kunosimbiswa kunosimbiswa kubva mukati.

Panguva ino padariro mwoyo stents - kuwedzerwa coronary tsinga yokunzvenga kusonanidzwa. Zvinofanira kucherechedzwa chimwe chinhu chakanaka chiri stenting: ari spasm of coronary arteries panguva chibharuma angioplasty anogona kuva myocardial infarction, izvo zvinogona kudziviswa nekushandisa stent. Stenting pakati arteries mwoyo ikozvino - imwe nzira nzira pakati coronary tsinga yokunzvenga kusonanidzwa. Uyezve, kana ari mararamiro hwokushanda chibharuma angioplasty coronary tsinga spazmiruyutsya, zvinokwanisika pave myocardial infarction, uye stent mune izvi kunobatsira kudzivisa izvi zviome zvakanyanya. Kana coronary tsinga ndavhiyiwa hafu varwere yakatanga stenosis yacho shunt. stenting yake ndiyo nzira yakanaka inodzokororwa coronary yokunzvenga. Uyewo zvemwoyo stents - rinogona kutsiva thrombolysis uye zvakanakisisa michina nokuda pakurapa chakasimba myocardial infarction zvakananga maawa waro kukura rokutanga.

Zvisinei, pane contraindications kuti nzira iyi. Stent placement hazvibviri pamwe diffuse aienda pamusoro coronary arteries. Uyewo, chipinganidzo chisingakundiki iri diki (asingasviki 2.8 mm) dhayamita ari kujekesa tsinga.

Nokuti kudzivirira thrombotic zviitiko nzira iri rinoitwa pasi pakanyorwa anticoagulants.

Mushure akadaro kuvhiyiwa, murwere anoramba ari muchipatara kwemazuva 5-7 siku nesikati zvokurapa achitarisirwa. Postoperatively mberi antiplatelet uye anticoagulation mishonga.