Axis na Zuciya (MEA)

Kiyasta lokacin karantawa: 5 minti daya

Menene Ma'anar Wutar Lantarki (MEA) na zuciya?

Axis na lantarki na zuciya, ko axis na zuciya (MEA), ra'ayi ne da ke bayyana alkiblar depolarization ventricular net a cikin zuciya. Wannan yana nufin alkiblar da aikin wutar lantarkin zuciya ke yaduwa a cikin jirgin sama mai girma biyu (jirgin gaba). Wannan jagorar gabaɗaya ce hagu-dama ve kai-wutsiya ana kimantawa akan gatari.

Ayyukan wutar lantarki na zuciya na yau da kullun yana yaduwa a ko'ina cikin tsokar zuciya, yana farawa daga kumburin atrioventricular dama (SA node). A yayin wannan yaɗuwar, axis ɗin wutar lantarki na zuciya yana karkata zuwa wata takamaiman hanya. Duk da haka, haɓakar ventricular (hypertrophy) ko rashin daidaituwa na ventricular conduction Yanayi kamar su (toshe reshe, mayar da hankali ga ectopic) na iya sa wannan axis ta karkace daga al'adar sa.

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Menene hanyoyin tantance MEA?

Akwai hanyoyi na farko guda uku don aunawa ko kimanta MEA. Kowace waɗannan hanyoyin suna amfani da daidaitattun jagororin hannu guda shida (I, II, III, aVR, aVL, aVF).

1. Hanyar Zane (Mafi Madaidaicin Hanya amma Hanyar Cin Lokaci)

Ta wannan hanyar, guda biyu (yawanci Yana jagorantar I da aVF) don ƙididdige MEA.

Matakai:

1. Ƙayyade ƙetare tabbatacce ko mara kyau ga kowane jagorar.

• Auna jimillar abubuwa masu inganci da mara kyau na hadadden QRS. (Misali, idan igiyar R shine +5 mm kuma S shine -2 mm, karkatar da ragar shine +3 mm.)

2. Shirya waɗannan ɓangarorin akan ginshiƙi na axis.

• Yi ƙirƙira karkacewar a Lead I akan layin kwance akan ginshiƙi.

• Shirya karkacewa a cikin aVF akan layi na tsaye akan jadawali.

3. Zana layukan kai tsaye daga waɗannan karkatattun kuma nemo wurin mahadar.

4. Zana layi daga wannan mahadar zuwa tsakiyar jadawali.

• kusurwar da wannan layin ya yi yana ba da MEA.

Wannan hanya tana ba da sakamako mafi inganci, amma yana ɗaukar lokaci kamar yadda yake buƙatar ƙarin ƙididdiga da zane.

2. Yi amfani da jagora tare da Maɗaukakin Maɗaukakin QRS

A cikin wannan hanyar, don ƙayyade MEA, matsakaicin R kalaman tsawo yana da asali.

Matakai:

1. Bincika rukunin QRS a cikin jagororin hannu guda 6.

2. Ƙayyade a cikin wane jagorar raƙuman R ne mafi girma.

3. Matsakaicin wannan abin da aka samo gabaɗaya yana daidai da MEA.

Wannan hanyar tana da sauri saboda kawai kuna buƙatar kwatanta tsayin rukunin QRS. Koyaya, yana iya zama ƙasa daidai.

3. Amfani da Mafi Isoelectric Samfura

A cikin wannan hanyar, don nemo MEA jagorar da ingantattun bambance-bambancen QRS suka yi daidai located.

Matakai:

1. Bincika rukunin QRS a cikin jagororin hannu guda 6.

2. Nemo a cikin wane jagorar abubuwan QRS masu inganci da mara kyau sun fi kusanci da juna.

3. MEA za ta kasance daidai da axis daidai da wannan jagorar.

4. Don tantance ko MEA tana da inganci ko mara kyau, nemi QRS akan wannan kusurwoyi na tsaye don zama tabbatacce ko mara kyau.

Ana amfani da wannan hanyar don gano canje-canjen axis ventricular da sauri.

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Menene kewayon nuni don karkacewar MEA don kuliyoyi da karnuka?

Matsayin al'ada na MEA a cikin mutane gabaɗaya -30° zuwa +90° Koyaya, waɗannan iyakokin sun bambanta a cikin karnuka da kuliyoyi.

• MEA a cikin kuliyoyi: Yawancin lokaci 0° zuwa +160° an yarda tsakanin.

• MEA a cikin karnuka: Yana iya bambanta dangane da nau'in da nau'in jikin kare, amma gabaɗaya +40° zuwa +100° Ana karba tsakanin. Wannan kewayon na iya bambanta a cikin manyan karnuka iri.

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Me yasa muke buƙatar lissafin MEA?

Sanin MEA yana taimakawa gano yanayin zuciya da yawa. Sharuɗɗa masu zuwa na iya haifar da rashin daidaituwa:

• Cutar hawan jiniƘara yawan ƙwayar tsoka na ventricular yana canza yanayin wutar lantarki zuwa hypertrophy.

• Abubuwan da ba a saba gani baCututtukan aiki kamar toshe reshen reshe na hagu (LBBB) ko toshe reshe na dama (RBBB) suna canza yaɗuwar wutar lantarki tsakanin ventricles, yana haifar da axis don motsawa.

• Ectopic rhythmsAbubuwan da ba su da kyau daga ventricle, kamar tachycardia na ventricular, na iya canza axis.

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MEA Canje-canje da Dalilai

1. Hagu Axis Diviation

• Dalilai masu yiwuwa:

• Hypertrophy na hagu na haguƘara yawan ƙwayar tsoka na ventricular na hagu yana haifar da axis na lantarki don matsawa zuwa hagu.

• Toshe na gaban tsoka na haguToshewa a cikin hanyar tafiyar da wutar lantarki a cikin zuciya yana haifar da axis zuwa hagu.

• Ƙwayoyin da suka samo asali daga ectopic fociƘunƙarar wutar lantarki daga rashin mayar da hankali a waje da ventricles na iya haifar da axis zuwa hagu.

2. Dama Axis Diviation

• Dalilai masu yiwuwa:

• Hypertrophy na ventricular damaƘara yawan ƙwayar tsoka na ventricular dama yana haifar da axis na lantarki don matsawa zuwa dama.

• Toshe reshe na damaToshewar motsin wutar lantarki a cikin ventricle na dama yana haifar da axis ɗin lantarki zuwa dama.

• Hawan jini na huhuƘara matsa lamba a cikin tasoshin huhu na iya haifar da ventricle na dama don ƙara girma, matsawa axis na lantarki zuwa dama.

• Tachycardia na ventricularMatsananciyar motsin wutar lantarki wanda ya samo asali daga ventricles na iya haifar da axis ta matsa zuwa dama.

3. Flat Axis (Axis Kusa da 0°)

• Dalilai masu yiwuwa:

• Cutar hawan jiniLokacin da biyun ventricles suka girma daidai, axis ɗin lantarki ba a jujjuya shi daidai gefe ɗaya kuma axis ɗin na iya kasancewa kusa da 0°.

• Ciwon hantaLokacin da rashin daidaituwa ya kasance a cikin ventricles biyu, axis na lantarki na iya kasancewa a cikin tsaka tsaki.

Wadannan canje-canje na iya nuna yawancin yanayi na zuciya, ciki har da karuwa a cikin ƙwayar zuciya (hypertrophy), rashin daidaituwa na tsarin gudanarwa (tushe-reshe), da kuma rashin jin dadi na ventricular (tachycardia na ventricular). Madaidaicin kimanta MEA yana da mahimmanci wajen gano waɗannan yanayi.

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Wasu Labarun Kuna iya Sha'awarsu

• Ayyukan Lantarki na Zuciya
• Ƙayyadaddun Ƙayyadaddun Zuciya da Ƙarfafawa
• Rashin Ci abinci (Anorexia) da Dalilansa
• Arrhythmias na zuciya a cikin Cats da Dogs
• Tetralogy na Falot (TOF)

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"Tafiyar da ba za ta taɓa yiwuwa ba ita ce wadda ba za ku taɓa farawa ba."

Tony Robbins

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