I-tachycardia ye-Ventricular iyindlela yokuphila ye-cardiac ngokushesha ephuma ezinhliziyweni ze-ventricles. Ngesinye isikhathi, abantu babekezelela i-tachycardia ye-ventricular ngezimpawu ezincane kuphela. Kodwa ngokujwayelekile lokhu kuhlaziywa kuveza amaphupho amakhulu, ubuhlungu obunzima, i-syncope (ukulahlekelwa kwesazi), noma ukuboshwa komzimba nokufa okungazelelwe.
Lezi zimpawu zenzeka ngoba i-tricycardia ye-ventricular iphazamisa ikhono lenhliziyo lokupompa ngempumelelo.
Isenzo sokumosha senhliziyo siba sibi nakakhulu ngesikhathi se-ventricular tachycardia ngezizathu ezimbili. Okokuqala, izinga lokushaya kwenhliziyo phakathi ne-tachycardia ye-ventricular lingashesha ngokwanele (ngokuvamile, ukushaya okungaphezu kuka-180 noma 200 ngomzuzu) ukunciphisa ukusebenza kahle kwenhliziyo. Okwesibili, i-tachycardia ye-ventricular ingaphazamisa ukuvuthwa okuvamile, okuhlelekile, okuhlanganisiwe kwenhliziyo yesisu. Lezi zici ezimbili ndawonye zivame ukwenza i-tachycardia engokwemvelo ibe yi-arrhythmia eyingozi kakhulu enhliziyweni.
Yini Ebangela I-Ventricular Tachycardia?
Esikhathini esiningi, i-tricycardia ye-ventricular iqala ngenxa yesifo esiyinkimbinkimbi senhliziyo esenza umonakalo emisipha ye-ventricular - ngokuvamile, isifo se-coronary artery (CAD) noma ukuhluleka kwenhliziyo . Imisipha yomzimba enesisindo esicindezelekile futhi ilukhuni ijwayele ukukhiqiza amasaka amancane kagesi ngaphakathi kwensimu yezinhliziyo, izifunda ezingabangela "i- reentrant tachycardias ." Ngakho-ke iningi le-tachycardia ye-ventricular uhlobo lwe-tachycardia ephindaphindiwe .
Eqinisweni, ingozi yokuthuthukisa i-tachycardia ye-ventricular ilingana nomonakalo oye wenziwa yi-muscleular muscle - umonakalo owengeziwe, ingozi enkulu ye-arrhythmia.
Indlela engcono kakhulu yokulinganisa inani lemonakalo yemisipha yenhliziyo ukukala ingxenyana ye-ventricular ejection engxenyeni yesokunxele.
I-engezansi ingxenyana ye-ejection , kakhulu ukulimala kwemisipha futhi kuphakamisa ingozi yokuba ne-ventricular tachycardia.
Ngokuvamile kakhulu, i-tachycardia ye-ventricular ingenzeka kubantu abasha abonakala bephilile ngokuphelele futhi abangenayo i-CAD noma ukuhluleka kwenhliziyo. Esikhathini esiningi lezi zi-arrhythmias zibangelwa yinkinga ethile yokuzala noma yokuzalwa, okufaka:
- I-Long QT syndrome
- Ukuphindaphindiwe kwe-ventricular tachycardia (RMVT)
- I-arrhythmogenic ye-ventricular cardiomyopathy (ARVC)
- i-catecholamine-sensitive polymorphic ventricular tachycardia (CPVT)
- I-Brugada syndrome
I-Tachycardia Yesiqhingi Yenzani?
Iziqephu eziqhamukayo ze-tachycardia ezinomsoco (okungukuthi, isikhathi eside) zivame ukuphuthumayo kwezokwelapha. Uma ukuboshwa komzimba kwenzeka, khona-ke izinyathelo ezijwayelekile zokuvuselelwa kwe-cardiopulmonary (CPR) kumele zithathwe ngokushesha.
Uma umuntu ophethe i-tachycardia ene-ventricular ephapheme futhi ephapheme futhi eqinile, izinyathelo ezingaphezulu zokuzithandela zingathathwa. Ngokwesibonelo, i-arrhythmia ingagqanyiswa ngokuletha imishanguzo emithi, njenge-lidocaine. Noma isiguli singasuswa futhi sinikezwe ukushaqeka kagesi ukuyeka ukuhlela, inqubo ebizwa ngokuthi "ukuvutha komzimba."
Ngemuva kwesiqephu esibucayi se-tachycardia ye-ventricular sesimisiwe futhi isigqi senhliziyo sibuyiselwe esimweni esijwayelekile, inkinga ivikela iziqephu zesikhathi esizayo. Lesi isinyathelo esibalulekile kusukela lapho umuntu esenesiqephu se-tachycardia esondelene ne-ventricular, izinkinga zokuba nesinye isiqephu ngaphezu konyaka ozayo noma ezimbili ziphezulu kakhulu-futhi noma yiziphi iziqephu eziphindaphindiwe zingasongela ukuphila.
Isinyathelo sokuqala ekuvimbeleni i-tachycardia yokuvame ukuvame ukuhlola nokuphatha ngokugcwele isifo senhliziyo. Ezimweni eziningi, lokhu kusho ukusebenzisa i-optimal therapy ye-CAD noma ukuhluleka kwenhliziyo (noma kokubili).
Ngeshwa, ngisho nokuphathwa kahle kwesifo senhliziyo, ingozi ye-tachycardia yokuvame ukuvame ukuhlala iphezulu futhi ngenxa yalokho, ingozi yokuboshwa komzimba nokufa okungazelelwe - ngakho ezinye izinyathelo kudingeka zithathwe.
Ngesinye isikhathi izidakamizwa ezingavamile zingasiza ekuvimbeleni i-tachycardia yokuvama ephindaphindiwe, kepha ngeshwa, lezi zidakamizwa ngokuvamile azisebenzi kahle ngokwanele. Ngesinye isikhathi, isifunda esivela kabusha esakhiqiza i-tachycardia ye-ventricular ingahle ihlelwe ngogesi bese ilandiswa , kepha (ngokuphambene ngokucacile neziguli eziningi ezine -tachycardias ezingaphezulu ) lokhu kuhlukile kunomthetho.
Ngenxa yalezi zizathu, ama- defibrillators angasetshenziswa kufanele aqashwe ngokuqinile kubantu abaningi abaye basinda esiqhingini se-tachycardia esebenzayo.
Imithombo:
Zipes, DP, Camm, AJ, Borggrefe, M, et al. I-ACC / AHA / ESC 2006 Imihlahlandlela yokuphathwa kweziguli ezine-Arrhythmias ezinamandla kanye nokuvimbela ukufa kwe-Cardiac Death-Summary Summary Umbiko we-American College of Cardiology / American Heart Association Task Force kanye ne-European Society of Cardiology Committee for Practice Guidelines (Ukubhala IKomidi Yokuthuthukisa Imihlahlandlela Yokuphathwa Kweziguli Eziphethe I-Arrhythmias Yomnotho kanye Nokuvimbela Ukufa Kwezinhliziyo ZaseNingizimu Afrika). J Am Coll Cardiol 2006; 48: 1064.