Electrocardiography

Electrocardiography waa habka soo saarida electrocardiogram (ECG ama EKG), duubista - garaafka danab ka soo horjeeda wakhtiga - dhaqdhaqaaqa korantada ee wadnaha iyadoo la isticmaalayo electrodes la saaray maqaarka.Electrodes-yadani waxay ogaadaan isbeddellada korantada ee yar yar ee ka dhasha depolarization muruqa wadnaha oo ay ku xigto dib-u-celinta inta lagu jiro wareeg kasta oo wadnaha ah (garaac wadnaha).Isbeddelka qaabka caadiga ah ee ECG wuxuu ku dhacaa cillado badan oo wadnaha ah, oo ay ku jiraan khalkhal la'aanta garaaca wadnaha (sida fibrillation atrial iyo tachycardia ventricular), socodka dhiigga halbowlaha halbowlaha oo aan ku filneyn (sida ischemia myocardial ischemia iyo wadnaxanuun myocardial), iyo khalkhalka elektrolytka (sida hypokalemia iyo hyperkalemia). ).

ECG-ga 12-lead ee caadiga ah, toban electrodes ayaa la saarayaa addimada bukaanka iyo oogada xabadka.Baaxadda guud ee awoodda korantada ee wadnaha ayaa markaa laga cabbiraa laba iyo toban xaglo oo kala duwan ("leads") waxaana la diiwaangeliyaa muddo (sida caadiga ah toban ilbiriqsi).Sidan, cabbirka guud iyo jihada depolarization korantada wadnaha ayaa la qabtaa daqiiqad kasta inta lagu jiro wareegga wadnaha.

Waxaa jira saddex qaybood oo waaweyn oo ECG ah: mowjadda P, oo ka dhigan depolarization atria;iskudhafka QRS, kaas oo u taagan hoos u dhigista halbowlayaasha;iyo hirarka T, taas oo ka dhigan dib-u-soo-celinta halbowlayaasha.

Inta lagu jiro garaaca wadnaha kasta, wadne caafimaad qaba ayaa si habsami leh u horumariya depolarization kaas oo ka bilaabma unugyada garaaca wadnaha ee santuuqa sinoatrial, ku faafaya dhammaan atrium-ka, wuxuu sii maraa qanjirada atrioventricular hoos ilaa guntigiisa iyo gudaha fiilooyinka Purkinje, hoos u faafaya iyo xagga bidix oo dhan xididdada dhiigga.Habkan nidaamsan ee depolarization ayaa keenaya raadinta sifada ECG.Takhtarka tababaran, ECG wuxuu u gudbiyaa macluumaad badan oo ku saabsan qaab dhismeedka wadnaha iyo shaqada nidaamka socodsiinta korantada.Waxyaabaha kale, ECG waxaa loo isticmaali karaa in lagu cabbiro heerka iyo laxanka garaaca wadnaha, cabbirka iyo booska qolalka wadnaha, joogitaanka dhaawac kasta oo soo gaara unugyada muruqa wadnaha ama habka marinka, saameynta daawooyinka wadnaha, iyo shaqada ee qalabka wadnaha lagu rakibay.

https://en.wikipedia.org/wiki/Electrocardiography