Electrocardiography (ECG) e sebetsa e le sesebelisoa sa bohlokoa ho lekola tšebetso ea motlakase ea pelo.Har'a mekhoa e rarahaneng e nkuoeng kerafong ea ECG, mantsoe a kang 'PRT axis' a ka hlaha.Leha ho le joalo, ho bohlokoa ho hlakisa hore li-axes tse tsebahalang ho ECG li shebana haholo le P wave, QRS complex, le T wave.Ha re hlahlobeng bohlokoa ba lilepe tsena.
1. P Wave Axis
Leqhubu la P le emetse depolarization ea atrial, ts'ebetso ea motlakase e etellang pele ho honyela ha atrial.Axis ea P wave e kenella ka lehlakoreng le tloaelehileng la maqhubu ana a motlakase.E sebetsa e le parameter ea bohlokoa ho utloisisa bophelo bo botle ba atria.
Tloaelo e hlalositsoe: Axis e tloaelehileng ea maqhubu a P e tloha ho 0 ho ea ho +75 degrees.
Li-anomalies ho P wave axis li ka baka likotsi tse ikhethang, tse fanang ka lintlha tsa bohlokoa ho maemo a tlase a pelo:
Ho Atolosoa ha Atrial ka ho le letšehali: Ho fetoha ka ho le letšehali ho feta likhato tsa + 75 ho ka 'na ha bontša litaba tse kang khatello ea mali kapa lefu la pelo ea valvular, ho fana ka lipatlisiso tse eketsehileng.
Katoloso e nepahetseng ea Atrial: Ho kheloha ka ho le letona e ka ba sesupo sa khatello ea mali ea pulmonary kapa lefu le sa foleng la matšoafo, e leng se etsang hore ho be le tlhahlobo e felletseng ea bophelo bo botle ba ho phefumoloha le pelo.
2. QRS Complex Axis
Ha tlhokomelo e fetohela ho depolarization ea ventricular, setsi sa QRS se nka setsi sa mantlha.E bonts'a liketsahalo tsa motlakase tse lebisang ho honyeng ha ventricular, QRS complex axis e fana ka leseli mabapi le tataiso e tloaelehileng ea depolarization ea ventricular.Ho utloisisa axis ena ho thusa ho lekola bophelo bo botle ba ventricular.
Tloaelo e Hlalositsoe: Axis ea QRS hangata e tloha ho -30 ho ea ho +90 degrees.
Ho kheloha ho axis e rarahaneng ea QRS ho na le litlamorao tse kholo, ho tataisa litsebi tsa bophelo bo botle ho tseba likotsi tse ka bang teng:
Ho kheloha ha Axis ka ho le letšehali: Mohala o suthelang ka ho le letšehali o ka fana ka maikutlo a maemo a kang hypertrophy kapa conduction abnormalities, e leng se etsang hore ho hlahlojoe hantle le tlhahlobo ea tlhahlobo.
Phapang ea Axis e nepahetseng: Ho kheloha ka ho le letona ho ka 'na ha bontša litaba tse kang khatello ea mali ea matšoafo kapa hypertrophy ea ventricular e nepahetseng, e leng se hlokang tlhahlobo e feletseng ea tšebetso ea pelo.
3. T Wave Axis
Leqhubu la T le tšoara ts'ebetso ea motlakase e amanang le repolarization ea ventricular, e tšoaeang mohato oa ho phomola.T wave axis, e ts'oanang le li-axes tsa P wave le QRS complex axs, e bonts'a tataiso e tloaelehileng ea tšusumetso ea motlakase nakong ea repolarization ea ventricular.Ho beha leihlo axis ena ho kenya letsoho tlhahlobong e felletseng ea potoloho ea pelo.
Tloaelo e Hlalositsoeng: Mokhoa o tloaelehileng oa T wave axis o fapana haholo empa ka kakaretso o ka lehlakoreng le le leng la QRS complex.
Li-anomalies ho T wave axis li fana ka leseli la bohlokoa mabapi le likotsi tse ka bang teng le ho kheloha ho repolarization ea pelo:
Maqhubu a Inverted T: Ho kheloha ho tloha tseleng e lebelletsoeng ho ka bolela ischemia, myocardial infarction, kapa ho se leka-lekane ha electrolyte, ho lebisa tlhokomelo e potlakileng le liteko tse eketsehileng tsa tlhahlobo.
Maqhubu a T a bataletseng kapa a Peaked: T wave axis e sa tloaelehang e ka bontša hyperkalemia, myocardial ischemia, kapa litla-morao tsa meriana, tse hlokang tlhahlobo e feletseng ea bophelo bo botle ba mokuli.
Sebakeng sa ECG, mantsoe a P wave, QRS complex, le T wave axes a thehiloe 'me a tsejoa ka ho pharaletseng.Leha ho le joalo, lentsoe 'PRT axis' le ka bakoa ke ho se utloisisane kapa ho se buisane hantle.Ke habohlokoa ho hlokomela hore lilepe tse boletsoeng ka holimo li theha motheo oa tlhaloso ea ECG.
Ho utloisisa likotsi tsena tse ka bang teng tse amanang le li-anomalies ho P wave, QRS complex, le T wave axes ho bohlokoa ho litsebi tsa bophelo bo botle.Ho beha leihlo ho kheloha ho tloaelehileng ho li-axes tsena ho thusa ho lemoha kapele le ho kenella, ho fokotsa likotsi tsa mathata a pelo.Litlhahlobo tsa kamehla tsa ECG, hammoho le tlhokomeliso ea likotsi tse ka 'nang tsa e-ba teng, li kenya letsoho mokhoeng o pharaletseng oa bophelo bo botle ba pelo.
