Ukuqonda i-ECG: Ukutyhila i-PRT Axes

I-Electrocardiography (ECG) isebenza njengesixhobo esibalulekileyo ekuhloleni umsebenzi wombane wentliziyo.Phakathi kweepateni ezintsonkothileyo ezifakwe kwigrafu ye-ECG, amagama afana 'umgca we-PRT' unokuvela.Nangona kunjalo, kubalulekile ukucacisa ukuba ii-axes ezaziwayo kwi-ECG zijolise ikakhulu kumaza e-P, i-QRS complex, kunye ne-T wave.Makhe sihlolisise ukubaluleka kwezi zembe.

1. I-Axis yamaza e-P

I-P wave imele i-atrial depolarization, umsebenzi wombane owandulela ukucutheka kwe-atrial.I-axis yamaza ye-P ijonga kwicala eliphakathi kwezi mpembelelo zombane.Isebenza njengeparameter ebalulekileyo ekuqondeni impilo ye-atria.

Okuqhelekileyo Kuchaziwe: I-axis ye-wave ye-P eqhelekileyo isuka kwi-0 ukuya kwi-+75 degrees.

I-Anomalies kwi-P wave axis inokubangela imingcipheko eyahlukileyo, inika imikhondo ebalulekileyo kwiimeko eziphantsi kwentliziyo:

Ukwandiswa kwe-Atrial yeKhohlo: Ukutshintshwa kwesobunxele ngaphaya kwe-+75 degrees kungabonisa imiba efana noxinzelelo lwegazi okanye isifo senhliziyo se-valvular, eqinisekisa uphando olongezelelweyo.

Ukwandiswa kwe-Atrial ye-Right: Ukuphambuka okufanelekileyo kungabonakalisa uxinzelelo lwegazi lwe-pulmonary okanye isifo esingapheliyo semiphunga, sikhuthaza uvavanyo olubanzi lwempilo yokuphefumula kunye ne-cardiovascular.

2. QRS Complex Axis

Njengoko ingqalelo itshintshela kwi-ventricular depolarization, i-QRS complex ithatha indawo ephakathi.Ukubonakaliswa kweziganeko zombane ezikhokelela kwi-contraction ye-ventricular, i-axis ye-QRS eyinkimbinkimbi inika ulwazi kwi-avareji ye-depolarization ye-ventricular.Ukuqonda le axis kunceda kuvavanyo lwempilo ye-ventricular.

I-Normalcy Defined: I-QRS axis iqhelekile ukusuka kwi--30 ukuya kwi-+90 degrees.

Ukutenxa kwi-QRS complex axis kunefuthe elibalulekileyo, elikhokela abaqeqeshi bezempilo ekuchongeni umngcipheko onokwenzeka:

Ukutenxa kwi-axis yasekhohlo: I-axis ejikela ngasekhohlo ingacebisa iimeko ezifana ne-hypertrophy okanye ukungahambi kakuhle kwe-conduction, ikhuthaza ukuphononongwa okusondeleyo kunye novavanyo lokuxilonga.

Ukutenxa kwi-Axis yasekunene: Ukutenxa ngasekunene kunokubonisa imiba efana noxinzelelo lwegazi lwe-pulmonary okanye i-right ventricular hypertrophy, efuna uhlolo olucokisekileyo lokusebenza kwentliziyo.

3. I-Axis ye-T yamaza

I-wave ye-T ibamba umsebenzi wombane ohambelana ne-ventricular repolarization, ephawula isigaba sokuphumla.I-axis ye-T wave, efana ne-P wave kunye ne-QRS complex axs, ibonisa i-avareji yolwalathiso lweempembelelo zombane ngexesha le-ventricular repolarization.Ukubeka iliso kule axis igalelo kuvavanyo olubanzi lomjikelo wentliziyo.

I-Normalcy Defined: I-axis ye-wave ye-T eqhelekileyo iyahluka ngokubanzi kodwa ngokubanzi ikwicala elifanayo ne-QRS complex.

I-Anomalies kwi-T wave axis ibonelela ngengqiqo ebalulekileyo kwimingcipheko enokubakho kunye nokuphazamiseka kwi-repolarization yenhliziyo:

Amaza e-T aguquliweyo: Ukuphambuka ukusuka kwicala elilindelekileyo kunokubonakalisa i-ischemia, i-myocardial infarction, okanye ukungalingani kwe-electrolyte, okubangela ukuqwalaselwa ngokukhawuleza kunye nolunye uvavanyo lokuxilonga.

I-Flat okanye i-Peaked T Waves: I-atypical T wave axis ingabonisa i-hyperkalemia, i-myocardial ischemia, okanye imiphumo emibi yeyeza, efuna ukuvavanya ngokubanzi impilo yesigulane.

Kwindawo ye-ECG, i-P wave, i-QRS complex, kunye ne-T wave axes zisekwe kwaye ziyaziwa ngokubanzi.Nangona kunjalo, igama elithi 'umgca we-PRT' unokuba nesiphumo sokungaqondani okanye ukunganxibelelani kakuhle.Kubalulekile ukuqaphela ukuba izembe elikhankanywe apha ngasentla zenza ilitye lembombo le-ECG yokutolika.

Ukuqonda le mingcipheko enokubakho enxulumene nokungahambi kakuhle kwi-P wave, i-QRS complex, kunye ne-T wave axs kubalulekile kubasebenzi bezempilo.Ukubeka iliso ekuphambukeni ukusuka kwisiqhelo kwezi zixhobo zinceda ekubhaqweni kwangaphambili kunye nokungenelela, ukunciphisa imingcipheko yeengxaki zentliziyo.Ukuhlolwa rhoqo kwe-ECG, kunye nokwazisa ngeengozi ezinokubakho, kunegalelo kwindlela ebanzi yempilo ye-cardiovascular.