Ophwanya Beta ali ndi ntchito zambiri zamankhwala. Chinthu chofunikira kwambiri ndi kuchiza odwala omwe ali ndi matenda oopsa amtundu (CAD) ndi angina.
Kodi Beta Amapindula Bwanji Odwala ndi Angina?
Kwa odwala okhala angakhazikika omwe amapezeka ndi CAD, beta blockers amaonedwa ngati mankhwala oyamba.
Mu angina yokhazikika, imodzi kapena zingapo za mitsempha ya m'mimba imatsekedwa pang'ono ndi chikhomo cha atherosclerotic .
Kawirikawiri, minofu ya mtima yomwe imaperekedwa ndi matenda amatha kupeza magazi okwanira nthawi yopumula. Koma nthawi yochita masewera olimbitsa thupi kapena nthawi yachisokonezo, kutseka kwadongosolo kumateteza kuti magazi asapitirire kukula mokwanira kuti apereke oxygen yofunikira ku minofu ya mtima, ndipo minofu imakhala ischemic (njala ya mpweya). Zotsatira zake, angina zimachitika.
Olemba Beta amagwira ntchito potseka zotsatira za adrenaline pamtima. Izi zili ndi zotsatira ziwiri zazikulu kwa odwala omwe ali ndi angina:
- Kuchepetsa kuthamanga kwa mtima, makamaka nthawi yopuma kapena kupsinjika maganizo.
- Kuchepetsa mphamvu ya mitsempha ya mtima.
Zonsezi zimachepetsa mpweya wofunikira wa minofu ya mtima, ndipo ischemia (ndi angina) imachedwa kapena kutetezedwa.
Kodi Zimakhudza Bwanji Anthu Odwala Beta Odwala Ndi Angina?
Odwala omwe ali ndi angina, beta blockers nthawi zambiri amathandiza kwambiri kupititsa patsogolo mwambo kapena masewera olimbitsa thupi omwe angathe kuchita popanda kupanga ischemia kapena angina.
Odwala omwe amakhala ndi angina okhazikika omwe amatenga beta amakhala ochepa kwambiri ndipo amayamba kuchepetsa zizindikiro za angina ndipo amayenera kutenga nitroglycerin nthawi zambiri.
Kuonjezera apo, odwala omwe ali ndi angina omwe ali ndi matenda a myocardial infarction . (matenda a mtima), beta blockers ndizo mankhwala okhawo omwe amachititsa kuti asakhale ndi vuto linalake lokhala ndi matenda a myocardial infarction.
Komanso, opulumuka ku matenda a myocardial infarction, kapena odwala omwe ali ndi mtima wolephera kuphatikizapo angina okhazikika, beta blockers amasonyezedwa kuti amasintha kwambiri kupulumuka kwathunthu.
Zopindulitsa zomwe zimaperekedwa ndi beta blockers zawapanga kukhala mankhwala osankhidwa oyamba posamalira odwala ndi CAD ndi angina okhazikika.
Zotsatira Zotsatira za Beta Odziletsa
Zotsatira zoyipa za beta blockers zimaphatikizapo bradycardia (kuchepa kwa mtima), kupuma kwa anthu omwe ali ndi matenda a mphumu kapena matenda a mapaipi, kutopa, kuwonjezereka kwa zizindikiro za mthupi la mitsempha , kuvutika maganizo, ndi kuwonongeka kwa erectile . Odziletsa mabeta ayeneranso kupeĊµedwa kwa odwala omwe ali ndi angina chifukwa cha Angina ya Prinzmetal (malo osokoneza bongo) , chifukwa nthawi zambiri odwala matendawa amatha kupangika kwambiri.
Zambiri mwa zotsatirazi zingapeĊµedwe kwa odwala omwe ali ndi angina pogwiritsa ntchito beta blockers zomwe zimagwira ntchito pamtima, ndipo zimakhala ndi zotsatira zochepa pa mitsempha ya m'magazi, mapapo, ndi mitsempha yapakati. Mitundu ya "cardioselective" beta ndi Tenormin (atenolol) ndi metoprolol (Lopressor, Toprol XL).
> Chitsime:
> Fihn SD, Gardin JM, Abrams J, et al. 2012 ACCF / AHA / ACP / AATS / PCNA / SCAI / STS Malangizo Othandizira Kuzindikira ndi Kusamalira Odwala Amene Ali Ndi Matenda Ovuta Kwambiri a Ischemic Heart: Lipoti la American College of Cardiology Foundation / American Heart Association Task Force on Practice Guidelines, ndi American College of Physicians, American Association for Opera Opera, Odwala Matenda Achirendo Amayi, Society of Cardiovascular Angiography and Interventions, ndi Society of Thoracic Surgeons. Kuthamanga kwa 2012; 126: e354.