Isingoma esivamile sesinus (NSR) ngenye igama lomculo wenhliziyo evamile.
I-Normal Heart Rhythm
I-heartbeat ilawulwa yizibonakaliso zamagesi ezivamile (ebizwa nangokuthi umfutho wegesi), okuvela ngokuzenzekelayo esakhiweni esibizwa ngokuthi i-sinus node, futhi esakazeka kuyo yonke inhliziyo (kuqala ngaphesheya kwe-atria, bese kuthiwa yi-ventricles). Ukusabalalisa okuhlelekile komfutho wokugesi kuqinisekisa ukuthi izingxenye ezihlukahlukene zenkontileka yenhliziyo ngendlela ehlelekile, elandelanayo.
Iqinisekisa ukuthi i-atria iyashaya kuqala (ngaleyo ndlela ilahla umthwalo wayo wegazi ezingxenyeni ze-ventricles), bese kuphela yenza isivumelwano se-ventricles, eject igazi emaphashini (kwesokudla ventricle) noma wonke umzimba (i-ventricle kwesokunxele).
"Isisindo sesi-sinus" sisho ukuthi umfutho wegesi wegesi uyenziwa ekwenzeni i-sinus, njengokwemvelo okuhlosiwe. "Isigqi sesiniso esivamile" sibonisa ukuthi akuyona kuphela isigqi sesiniso esikhona, kodwa futhi izinga "lokudubula" ku-node ye-sinus kuvamile-hhayi kancane kakhulu, hhayi ngokushesha kakhulu. Ngokujwayelekile, isigqi sesiniso esivamile sichazwa njengesigqi sesinasi esilinganisweni esingu-60 no-99 beats ngomzuzu.
Izinhlobonhlobo zeSanth Rhythm evamile
Isigqi sesinasi singase sihambe kancane, okuthiwa sinus bradycardia . (I-Bradycardia yigama elinikezwe izinga lentliziyo elincane.) I-Sinus bradycardia akuyona into engavamile. Ngesikhathi sokulala, iningi labantu linamazinga enhliziyo egoqa kahle ngaphansi kwezigqoko ezingu-60 ngomzuzu, futhi abagijimi abaqeqeshwe kaningi bangaba nokuphumula kwamazinga ezinhliziyo ema-40s.
Ngakho iqiniso lokuthi i-sinus bradycardia ekhona akusho ukuthi kunenkinga.
Noma kunjalo, isifo se-sinus (ngezinye izikhathi esibizwa ngokuthi i- sick sinus syndrome ) ngokuvamile siveza izimpawu ngoba izinga lenhliziyo lincane kakhulu. Uma lokhu kwenzeka, i- pacemaker ivame ukudinga ukukhulula izimpawu.
Isigqi se-Sinus singase sisheshe, esibizwa ngokuthi i-sinus tachycardia.
(I-Tachycardia isho izinga lokushaya kwenhliziyo elisheshayo.) Kufana nesinus bradycardia, i-sinus tachycardia ingaba yinto evamile noma engavamile. I-Sinus tachycardia kufanele ivele, isibonelo, uma usebenzisa. Ukwanda kwenhliziyo kwenhliziyo kwenza inhliziyo iqhume igazi elingeziwe lapho umzimba udinga ngesikhathi sokusebenza. Ngokufanayo, i-sinus tachycardia ingase ibe khona ngezikhathi zokucindezeleka okukhulu, ngesikhathi somkhuhlane, nge- hyperthyroidism , noma lapho kunezinhlobo zezinkinga zezokwelapha ezikhona ezidinga ukuphuma kwenhliziyo (njenge-anemia). Ngakho-ke, uma i-sinus tachycardia engacacisiwe ikhona, kubalulekile ukuba udokotela enze ukuhlolwa okuphelele kwezokwelapha ukukhomba imbangela ebangela ukuthi ilashwe.
Ngokuvamile, uhlobo lwesinus tachycardia lungenzeka okuthiwa yi- sinus e-tachycardia engenayo . Lona uhlobo lwe-tachycardia yesinono ezayo futhi luya ngokuzumayo (njengokuguqula ukuvula nokuvala), okubangelwa izindlela ezingaphezulu kagesi ngaphakathi kwesodi yesinus. Kuvame ukuphathwa nge- ablation .
Abanye abantu bane-sinus tachycardia ngaphandle kwesizathu esizwakalayo, imbangela ebizwa ngokuthi i- sinus tachycardia engalungile (IST). Isimo esifanayo sibonakala ngokuthi i- postural orthostatic tachycardia syndrome (i-POTS), lapho i-sinus tachycardia-nokudonsa e-blood pressure-kwenzeka ngokuma okuqondile.
Kokubili i-IST ne-POTS zivame ukhiqiza amapulpitations abalulekile, izinwele ezikhanyayo nezinye izimpawu, futhi ngeshwa, kuvame ukuqondwa kahle (futhi kungaqondakali kahle) odokotela.
Imithombo:
I-Bjerregaard P. Isilinganiso senhliziyo yamahora angu-24, Isilinganiso senhliziyo encane kanye nezinyathelo ezimpilweni ezinempilo eminyakeni engu-40-79 ubudala. I-Eur Heart J 1983; 4:44.
I-Yusuf S, i-Camm AJ. I-Sinus Tachycardias. Nat Clin Pract Cardiovasc Med 2005; 2:44.