Vascular insufficiency

Vascular insufficiency kunoitika munenge 1-2% of zvachose kwevanhu. mamiriro akadaro nguva dzose migumisiro ipi chirwere. Kazhinji, inotungamirira kune zvirwere zvemwoyo hurongwa. Izvi zvinosanganisira cardiomyopathy, angina, myocardial infarction, mwoyo kuremara.

The kukundwa mwoyo tsandanyama kunokonzera kuti muviri kutyora ropa rive, nokuda kutinetesa uye kusingagutsi chokupika ayo kupomba chaitika.

Vascular insufficiency kunoratidzwa kuva pathological ezvinhu umo mune vasanyanye tonus pamusoro anotsvedzerera tsandanyama ari mudziyo masvingo. Izvi chinokurwadzai hypotension, kunetswa mune venous kudzoka uye aibuda ropa.

Vascular insufficiency nokuda chikuru maronda hunhu mwoyo nokukundikana achiperekedzwa nhengo uye kunotoitika kuita midziyo. Uku kuita dzinoratidzwa compensatory hunhu. Saka chenjera cardio vascular insufficiency achiperekedzwa maitiro, iyo kunoratidzwa muchimiro vasoconstriction mukupindura matambudziko pressor zvigadziriswe. Izvi zvinotungamirira kuwedzera vascular nemishonga kuti imwe nguva, vamwe kuwedzera padanho BP uye normalization ropa wedzerai zvinokosha nhengo muupenyu. In zvirwere yakatsiva vasoconstriction kunobva hypertrophy pakati anotsvedzerera tsandanyama mumasero ngarava masvingo.

Nengano Kuparadzwa ari compensatory zvigadziriswe mumoyo kukundikana, vascular insufficiency anobatana. Izvi zvinoderedza zvachose peripheral nemishonga, zvinoshamisa kuwedzera vaduku mutsinga, venules uye capillaries.

Zvinenge zvose kwacho umo mwoyo une kushanda muchisimbisa kwenguva refu, kana STRUCTURAL kukuvara kuitika myocardium, chinokurwadzai kukundikana mwoyo uye nemidziyo. Sezvo tsika inoratidza kazhinji mamiriro vakachengeta pamusoro pakanyorwa zvirwere zvakadai coronary tsinga chirwere, valvular mwoyo chirwere (vawana uye vachiberekwa), myocarditis, vane chirwere cheBP chinzvimbo, cardiomyopathy. Mukuwedzera, chirwere anogona kuitika mune zvirwere kwemakemikari anobudiswa hunhu metabolic maronda, kukwana kudya kunovaka.

The kupfuura kakawanda kukonzera rufu (80% nyaya) panguva zvemwoyo chirwere coronary tsinga chirwere.

Kuti chirwere unogona kutungamirira zvikonzero zvakasiyana-siyana. Nyanzvi mapoka makuru matatu etiological zvinhu.

Boka rokutanga rinosanganisira zvinhu zvine zvakananga kukuvadza pasi ari myocardium. It Kungava kunotevera, kemikari dzokupisa (semuenzaniso, zvinodhaka ovhadhozi). Uyezve, yakananga inokuvadza anogona zvinokonzerwa, uye utachiona zvikonzero (muchetura, utachiona, tupukanana).

Boka zvikonzero rechipiri kunosanganisira zvinhu kuti kumutsa zadzisa pamusoro myocardial dzichipfekeka hunhu. Izvi zvinosanganisira kuva kunyanya kuwedzera bhuku kuuya ropa mwoyo ( "zadzisa kukwanisa"). Izvi zvingaitika kana cardiac vharafu insufficiency, kuvapo extracardiac uye intracardiac shunts, uye mune hypovolemia. zadzisa uye myocardial zvinokonzera dzichiwedzera kubva mhango mwoyo ropa ( "dzvinyiriro zadzisa") iri kuramba pamusoro ejection. Muchiitiko chino, zvemwoyo kukundikana anova pamberi pamusoro myocardial hypertrophy. Zvinofanira kucherechedzwa kuti hypertrophy kunoitika mumuviri dhipatimendi, iyo anoita basa zvikuru.

Zvino boka rechitatu kunosanganisira zvinhu kuti itibatsire havachanyatsogoni diastolic ventricular zvekupfakira. Ichi chirwere anokonzerwa vasanyanye kune pamwero mukuru pakati achiparadzira ropa vhoriyamu (munguva simba kuvhunduka kana kurasikirwa ropa), uye kutyora zviri diastolic kutandara mwoyo panguva compression emura aro rinoungana iri pericardium (ropa, transudate, exudate).