Mishonga Inogona Kukuvadza Pakati Pezvinhu Zvakasiyana zveSVT
Supraventricular tachycardia (SVT) inoratidzira rutivi rwemapurisa emagetsi anobva mumapurisa emwoyo. ("Supraventricular" zvinongoreva kuti "pamusoro pemhepo inobhururuka.")
Kune mhando dzakasiyana dzakasiyana dzeSVT, asi kumunhu ane SVT vose vanowanzofunga nezvemazana. Inowanzobereka mapapita, uye kazhinji kacho kuchena, uye pavanenge vasisambogoni kutyisa upenyu, chero rudzi rweSVT runogona kunge rwakanyanya kuoma kushivirira.
Kunyange zvazvo zviratidzo nemhando dzose dzeSVT zvakafanana, kana zvasvika pakurapa kune zvakakosha kusiyana. Saka apo chiremba ari kubata munhu ane SVT, zvinokosha kuti aone kuti ndeupi rudzi rweSVT. I-SVTs inoparadzaniswa kuva mbiri dzakapoteredza: "reentrant" uye "inotenderera" SVT.
Reentrant SVT
Vanhu vakawanda vane SVT vakaberekerwa vane humwe hutano hwemagetsi mumoyo yavo. Izvi zvinyorwa zvinowedzera iyo inogona kuita magetsi.
Mune mamwe maitiro, moyo wemagetsi wemhepo unogona "kuvharwa" mukati memharaunda iyi, uchifamba-famba uchipoterera uye uchiupoteredza uchienderera mberi. Nehemberi imwe neimwe, hutsva hwemoyo hunogadzirwa, huchibereka tachycardia . Mhando ye tachycardia yakabudiswa nehuwandu hwekubatanidza huno inonzi reentrant tachycardia.
Inonyanya Kufanana Nenzira dzekuwanazve SVTs
Mazita anopiwa kumarudzi akasiyana-siyana eSVT akadzoka anogona kunge akavhiringidza, asi kiyi ndeyokuti mazita anoratidza kuti kuwedzera kwekubatanidzwa kuri mukati memwoyo.
Mhando dzakasiyana-siyana dzeSVT dzakanyorwa apa. Dzvanya paunobatana kuti uverenge pamusoro pezvinhu zvakasiyana-siyana zvemarudzi ose:
- Atrioventricular nodal reentrant tachycardia, kana AVNRT , zvichiita zvinenge 60% zveSVTs dzose.
- Atrioventricular reciprocating tachycardia, kana AVRT , rudzi rweSVT runosanganisira Wolff-Parkinson-White Syndrome (WPW) . AVRT inokonzera 30% yeSVTs yose.
- Sinus nodal reentrant tachycardia , kana SNRT, zvichiita zvishoma pasi pe5% zveSVTs.
- Intraatrial reentrant tachycardia, kana IART, uyewo inokonzera pasi pe5% yeSVTs.
Kunyange zvazvo nzira dzokurapa dzemhando idzi dzose dzezveSVT dzakadzoka dzinosanganisira zvose zvinogadziriswa nemishonga uye mishonga, kurapa "kwakanakisisa" kunoenderana nehuwandu hwemhando chaiyo.
Automatic Tachycardias
Rumwe rudzi rweSVT haruna kukonzerwa nehuwandu hwehutano hwemagetsi mumoyo. Rudzi urwu rweSVT runonzi "automatic SVT."
Kazhinji, mwoyo rhythm inodzorwa nemagetsi emagetsi anokonzerwa nama "pacemaker" masero emwoyo, ari munharaunda ye sinus .
Asi muchizvidimbu SVT, masero mune imwe nzvimbo mukati meatria anotanga kubudisa mafungiro awo emagetsi, zvakakurumidza kupfuura node ye sinus, nokudaro kutora rwiyo rwemoyo nekugadzira SVT inotenderera.
Automatic SVTs hazviwanzozivikanwi kupfuura reentrant SVTs. Zvinowanzowanzoitika kune vanhu vane chirwere chikuru chekurapa - kunyanya chirwere chemapapu chakanyanya, chisina kutenderwa hyperthyroidism , kana zvirwere zvizhinji zvakaoma zvakakwana zvokuti zvinoda kutarisirwa zvakanyanya kwechipatara.
Kushandisa SVTs kazhinji kacho kwakanyanya kuoma kurapa zvakananga, sezvo pasina humwe hutano hwemagetsi hunogona kubviswa, uye sezvo mishonga inorwisana nehutachiona kazhinji isingashande zvakanaka mukudzvinyirira aya arrhythmias.
Saka kunyatsoshanda kwekutsvaga SVT inzira yakasiyana yekurapa, kureva, kubata chirwere chepachirwere chinowanikwa. Kakawanda nguva dzose, kana murwere aine SVT achizvitengesa akawana zvakakwana kuti asunungurwe kubva muchikwata chekuchengetedza zvakanyanya, urhythmia ichave yanyangarika.
Imwe yakasiyana-siyana yakasiyana-siyana yeSVT inotsvaga haina kukonzerwa nehosha yakaoma uye inowedzera kuva isingaperi uye yakaoma kutarisira. Iyi ndiyo Inappropriate sinus tachycardia (IST), iyo inofanirwa nekukurukurirana kwayo .
Cherechedza: Kunyange zvazvo chirwere chepachirwere chepayirini chiri chechimiro cheSVT, chinoonekwa sechinhu chayo chayo. Verengai pano nezvehutrial fibrillation .
Sources
Blomström-Lundqvist C, Scheinman MM, Aliot EM, uye al. ACC / AHA / ESC mirayiridzo yevatungamiri vevarwere vane supraventricular arrhythmias - nhepfenyuro yakakura: mushumo weAmerican College of Cardiology / American Heart Association Task Force pamusoro Pemitemo Yezvokuita uye European Society yeCardiology Committee yeMitungamiri Yedzidzo (Komiti Yokunyora Ita Nhungamiro Yekutungamira Kwevarwere Ne Supraventricular Arrhythmias). Circulation 2003; 108: 1871.