Electrocardiography

Electrocardiography bụ usoro nke imepụta electrocardiogram (ECG ma ọ bụ EKG), ndekọ - eserese nke voltaji na oge - nke ọrụ eletrik nke obi na-eji electrodes etinye na akpụkpọ ahụ.Eletrọd ndị a na-achọpụta obere mgbanwe ọkụ eletrik bụ ihe ga-esi na mwepu akwara obi na-esochi repolarization n'oge okirikiri obi ọ bụla (obi mgbawa).Mgbanwe n'ụdị ECG nkịtị na-eme n'ọtụtụ ọrịa obi, gụnyere ọgba aghara ọgba aghara nke obi (dịka atrial fibrillation na ventricular tachycardia), ezughị oke ọbara akwara ọbara (dịka myocardial ischemia na infarction myocardial), na ọgba aghara electrolyte (dị ka hypokalemia na hyperkalemia). ).

N'ime ECG nke 12-edu ndú, a na-etinye electrodes iri n'akụkụ aka nke onye ọrịa na n'elu igbe.A na-atụzi oke ike eletrik nke obi site na akụkụ iri na abụọ dị iche iche (“edu”) wee dekọọ ya n'ime oge (na-abụkarị sekọnd iri).N'ụzọ dị otu a, a na-ejide n'ozuzu oke na ntụzịaka nke nrụpụta eletrik nke obi n'oge ọ bụla n'ime usoro obi obi.

Enwere isi ihe atọ na ECG: P wave, nke na-anọchite anya depolarization nke atria;mgbagwoju QRS, nke na-anọchite anya nkwụsị nke ventricles;na T wave, nke na-anọchite anya repolarization nke ventricles.

N'oge nkụchi obi ọ bụla, obi dị mma na-enwe ọganihu n'usoro nke depolarization nke na-amalite site na cell pacemaker na node sinoatrial, gbasaa n'ime atrium, na-agafe na oghere atrioventricular gbadara n'ime ngwugwu nke ya na n'ime eriri Purkinje, na-agbasa ala na ruo na ekpe na ventricles niile.Usoro nke depolarization a n'usoro na-ebute njirimara ECG.Nye onye dọkịta a zụrụ azụ, ECG na-enye ozi dị ukwuu banyere nhazi nke obi na ọrụ nke usoro nchịkwa ọkụ eletrik ya.Tinyere ihe ndị ọzọ, enwere ike iji ECG tụọ ọnụọgụ na ụda nke obi, nha na ọnọdụ nke ọnụ ụlọ obi, ọnụnọ nke mmebi ọ bụla nke mkpụrụ ndụ akwara obi ma ọ bụ usoro nhazi, mmetụta nke ọgwụ obi, na ọrụ ahụ. nke etinyere pacemakers.

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