ecg intepretation- a systemic approach 1embed.ppt

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PHAÂN TÍCH MOÄT BAÛN ÑIEÄN TIM - CAÙCH TIEÁP CAÄN COÙ HEÄ THOÁNG BS Nguyeãn xuaân Tuaán Anh Boä moân Noäi - ÑHYD

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Page 1: ECG INTEPRETATION- A SYSTEMIC APPROACH 1embed.ppt

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PHAÂN TÍCH MOÄT

BAÛN ÑIEÄN TIM -CAÙCH TIEÁP CAÄNCOÙ HEÄ THOÁNG

BS Nguyeãn xuaân Tuaán Anh

Boä moân Noäi - ÑHYD

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Hoaït ñoäng ñieän oï! !"#ati$

• Nuùt xoang• Boä noái nhó

thaát• Boù His• aù! nhaùnh

• "a#ng$u%&in'e

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%&ï 'n a(n P-)*%-T

• Soùng $ ( &h)* !)#!nhó+

• $h)ù! ,oä .S (&h)* !)#! thaát

• Soùng T ( ho/i !)#!

thaát

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Ñ+NH ,ANH %OÙNG

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Ca! !".e/n ñaïo

• huye0n 1a#o2)34ng !)#! !hi 5 55

555• huye0n 1a#o 13n

!)#! !hi a6.7 a687

a69• huye0n 1a#ot%)3ù! tim 6: 6;

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Tie01 !aän !o eä to0ng

• :-Ta/n soá <.AT=>• ?- Nh@ <.HYTH">

• - aù! &hoa*ng !aù!h <5NT=.6A8 C$..ST>

• E- T%u#! <AF5S>

• G- $h 1a#i <HY$=.T.I$HY>• ;- Nho/i maùu <THAY ÑIJ5 .ST>

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2- *ATE 3 *H4THM

• $haân tK!h G 1ie0mC Soùng $ L

C .S ,nh th)3Mng hay %oäng LC Nh@ !où 1e/u hay &hoâng LC T)3ng uan gi)4a soùng $ OaM .S

C Ta/n soá tim+

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256 - TA7N %OÁ TIM 8 Ca!t9n

• P8QART  ( Uhinh@ 1e/u7 ta/n soátim 1)3#! tKnh ,aVng

!aù!h 2aáy !hia!ho soá oâ 23ùngi)4a &hoa*ng ..+

• Uhi giaáy !ha#y O3ùi

Oaän toá! ?Gmmse!7 : oâ nho*2aM +E OaM : oâ23ùn 2aM +? <GF+E>+

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25: NH+P ;OANG<CAÙC *OÁI=OA>N NH+P

• Nh@ xoang ( soùng $ 3* D 5 7 D 55 2uoân2uoân W)3ng+• Neáu soùng $ 3* D 5 &hoâng W)3ng  

&hoâng ha*i nh@ xoang <t%)M Wext%o!a%WiahoaX! ma! sai 1ieän !)#!>+C Nh@ xoang BT ( 1e/u 7 ;-Z nh@huùtC Nh@ !haäm xoang ( 1e/u 7 [;C Nh@ nhanh xoang ( 1e/u 7 \] : C 8oa#n nh@ xoang ( &hoâng 1e/u7 no%ma2 Oa%iant+

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=oaïn n?1 @oang o oa01

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Ma! Dai ñieän !&ï!

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25 *=NT T*EÂN THAÁT 8 1&!Foä eï1

• T%eân thaát ( xung1oäng haùt xuaátngay ta#i hoaX! hKa

t%eân nuùt A6• aù! .8NT t%eân thaát

th)3Mng gaX 2aM (C .ung nhóC 92utte% nhó <!uo/ng nhó>+C 3n nh@ nhanh &@!h

haùt t%eân thaát+C Nh@ ,oä noái

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2552 *NG NH

• 8oa#n nh@ hoaMn toaMn7 1)3Mng1a^ng 1ieän uoán 2)3#n thaMnh soùng

_  2a`n ta`n <,%i22ation>C .N 1aù )ùng thaát nhanh ( ta/n soáthaát \ :?

C .N 1aù )ùng thaát !où &ie0m soaùt ( b-::

C .N 1aù )ùng thaát !haäm ( [ ;

J i L F iLL i

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*"ng n JatKiaL FKiLLation 8Dong Lan tanQ Loaïn n?1

oa(n toa(n

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2556 R=TTE* NH

• Soùng 9 %a`ng !)a7ta/n soá +• Ñaù )ùng thaát (

C  ?(: th)3Mng gaXnhaát  ta/n soáthaát 2aM :G<?>+

C  E(:  ta/n soá

thaát 2aM bG+C Thay 1o0i ( nh@&hoâng 1e/u

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RL"tteK n 8 aSn tK".en682

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255: CUN NH+P NHANH V+CHPHAÙT T*EÂN THAÁT

• Nh@ 1e/u7 ta/n soá :G-?E2a/nhuùt

• Soùng $ &hoù thaáy• 3 !heá OoMng OaMo 2a#i ta#i ,oä noái

nhó thaát

• oMn go#i 2aM A6N.T (  AV  NoWa2Reent%y T a!hy!a%Wia

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P%WT 8 [email protected]$aLD"1KaXentKi!"LaK ta!.!aKia

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255 NH+P BOÄ NOÁI• Nh@ 1e/u7 hoa#t 1oäng nhó ,at nguo/n

t)M ,oä noái nhó thaát+• Soùng $ 3* D 55 hoaX! aâm <&hi 1)ùng

t%)3ù! hay sau .S> hoaX! &hoâng thaáy 

<2aãn OaMo .S>C Nhòp thoaùt boä noái ( hoa#t 1oäng nuùt xoang,@ suy yeáu+ Ta/n soá E-; 2a/nhuùt+

C Nhòp boä noái gia toác ( nh@ haùt t)M ,oä noái

ta`ng 2eân t)M ;:-ZZ 2a/nhuùt7 nam uye/n!hc huy ta#o nh@+C Nhòp nhanh boä noái ( \: 2a/nhuùt

N? t t F ä 0i P

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N?1 toat Foä no0i 8 Dong Pa$ ñi Da" 1&! Foä )*% Y# IIQ

IIIQ aWRQ aW=5

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25Z NGOA>I TAÂM TH

• NTT 2aM nh)4ng h)ù! ,oä .S 1eán s3ùm xen OaMo nh@ !3 ,a*nC NTT nhó ( nhaùt ,où 1eán s3ùm !où nguo/n

goá! t)M moät O@ t%K 3* nhó thay O 2aM nuùt xoang< $ thay 1o0i hnh Wa#ng>

C NTT ,oä noái ( nguo/n goá! t)M nuùt nhó thaát <$aâm hoaX! &hoâng thaáy 3* D 55>+

C NTT thaát ( h)ù! ,oä .S gia4n %oäng7 W@ Wa#ng7nguo/n goá! t)M taâm thaát

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Ngoaïi ta$ t" tKen ta0tQ !oL"! n?1 ñoi

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Ngoaïi ta$ t" ta0t n?1ñoi

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25[ *OÁI =OA>N NH+P THAÁT 8P&! Foä Koäng

• Nguo/n goá! xung 1oäng t)M thaát ( h)ù!,oä %oäng W@ Wa#ng+

• .S &hoâng 2ieân heä O3ùi soùng $7 &hoângthaáy $ hoaX! $ %et%og%aWe+C Nh@ thoaùt t)# thaát ( ?-E 2a/nhuùtC Nh@ t)# thaát gia toá! ( nh@ \ E nh)ng

&hoâng uaù ::-:?huùt+C Nhanh thaát ( \ :?d: 2a/n huùt+ u3ù

uye/n !hc huy+

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NHANH THAÁT

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6- ÑO CAÙC VHOAÛNG

• Uhoa*ng $.• $h)ù! ,oä .S

• Uhoa*ng T

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652 VHOAÛNG P*

• TKnh t)M 1a/u &h)* !)#! nhó<1a/u soùng $> 1eán 1a/u&h)* !)#! thaát <1a/u .S>+

• Ño toát nhaát 3* D 55 + BT (+:?-+?

• $. nganf ( [ +:? C H!&K!h thK!h s3ùm 7 Waãnt%uye/n ua 1)3Mng hu#+

• $. WaMi ( \ +?? + B2o!& A61oä 5+

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656 P&! Foä )*%- B=OCVNHAÙNH

• Uhoa*ng .S ( th3Mi gian &h)* !)!#taâm thaát+ ng)3Mi 23ùn7 nh@

xoang th3Mi gian naMy &hoâng uaù+:C Ño 3* ,aát &yM 1aâu t%ong :? !huye0n

1a#o+ 8)#a !huye0n 1a#o naMo !où .SWaMi nhaát+

C $h)ù! ,oä .S gia4n %oäng &hi Ou3#tuaù +: hay oâ 23ùn+

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65: VHI PH\ÙC BOÄ )*% GIA]N*OÄNG

• Neáu nh@ 2aM nh@ t%eân thaát<&hoâng ha*i 2aM nhanh thaát>7 .S

gia4n %oäng <&hoâng Wo j$j> th !où 2yù Wo (C B2o!& nhaùnh ha*i+

C B2o!& nhaùnh t%aùi+C haäm Waãn t%uye/n noäi thaát <56D Cint%a Oaent%i!u2a% !onWu!tion We2ay>+

Fem 3* D 57 6: OaM 6;+

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B=OCV NHAÙNH PHAÛI

• 6: ( %S%f• D 57 6; ( soùng S hKa sau gia4n %oäng+

• .S \ +::

BLo!^ nan P 8 Kigt F"nLe

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BLo!^ nan P 8 Kigt F"nLeFKan! FLo!^ J*BBB _ KD*` W2Q %

Koäng , I

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B=OCV NHAÙNH T*AÙI

• .S \ +:?• D 5 OaM 6; ( . W)3ng7 !où moù!7

UHIkNl I SINl +• .S aâm 3* 6: <%S hay S>

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 FKan! FLo!^ _ =BBB _ % Da"W2QW6QW:- * Koäng !o $o! Xa(

$a0t Y# W-W[5

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IWC,

• Th)3Mng 2aM haäu ua* !u*a moättieán t%nh ,eänh 2yù ta#i !3 tim nh)N"T7 x3 hoaù7 ,eänh !3 tim7 tim

23ùn+C  .S gia4n %oäng \ +::C Uhoâng !où Wa#ng ,2o!& nhaùnh ha*i

hay ,2o!& nhaùnh t%aùi 1ie0n hnh 3* D 57

6: OaM 6;+

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bPb

• "oät ngoa#i 2eä &hi nh@ tim 2aM nh@xoang ,nh th)3Mng nh)ng &hoâng

thuoâ! ,a Wa#ng t%eân 2aM h! jI899-$A.U5NSIN-jH5T=+C .S %oäng+C

Soùng We2ta+C $. ngan 2a#i

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H<C bPb 8 P* ngan Laïi Xa(Dong eLta Y# IQ II Q W:Q W5

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65: VHOAÛNG )T

• Ño t)M 1a/u soùng <hoaX! . neáu&hoâng !où > 1eán !uoái soùng T+

• Neáu nh@ tim [ : 2a/nhuùt7 T

&eùo WaMi &hi noù 23ùn h3n &hoa*ng..+

• ho#n !huye0n 1a#o naMo thaáy %o4

ha/n &eát thuù! !u*a soùng T OaM!où T WaMi nhaát+

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  QT Interval (QTc < 0.40 sec)

Bazett's Formula: QTc

 = (QT)/SqRoot RR (in seconds)

Poor Man's Guide to upper limits of QT: For HR = 70 bpm, QT0!"0 sec# for

e$er% &0 bpm incre'se 'bo$e 70 subtr'ct 0!0 sec, 'nd for e$er% &0 bpm

decre'se belo 70 'dd 0!0 sec! For e*'mple:

QT 0!+ - 0 bpm

QT 0!" - .0 bpm

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H<! )T a(i

> Ñ Ä

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:- T*>C ÑIEÄN TIM WAc B=OCVPHAÂN NHAÙNH

• :? !huye0n 1a#o nhn t%aùitim theo nh)4ng goù! nhn&haù! nhau+

• !huye0n 1a#o !hua0n 3*!hi 2aM 57 557 555+ "oãi !huye0n1a#o !aù!h nhau ; 1oä<tam giaù! 1e/u =inthoOen>+

• !huye0n 1a#o 13n !)#! !hi2aM aO.7 a687 a69 !aù!hnhau :? 1oä7 O3ùi a68 3*- 1oä OaM a69 3* Z 1oä

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CAÙCH TÍNH T*>C ÑIEÄN TIM

• D)#a OaMo ? !huye0n1o#a D 5 OaM a69 O!huùng Ouoânggoù!

nhau+ D 5 3* O@ t%K 1oä OaM a69 3* O@ t%KZ 1oä+C T%u#! BT ( -ZC T%u#! 2eä!h t%aùi ( -

-ZC T%u#! 2eä!h ha*i (Z-

:C T%u#! ,aát 1@ng ( :-

?b

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CAÙCH TÍNH NHANH

• - D 5 OaM a69 !où to0ng ,ieân 1oät)3ng t)# nhau ( t%u#! EG 1oä+

• - D 5 W)3ng OaM !où ,ieân 1oä 23ùn h3na69 ( t%u#! 3* ga/n D 5 h3n <gi)4a -E1oä>+

• - a69 W)3ng OaM !où ,ieân 1oä 23ùn

h3n ( t%u#! ga/n a69 h3n <G-Z 1oä>+• - T%u#! se4 Ouoâng goù! O3ùi !huye0n

1a#o naMo !où to0ng ,ieân 1oä ,aVng  

<ha aâm ,aVng ha W)png>+

T*>C =EÄCH T*AÙI BEÄNH

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T*>C =EÄCH T*AÙI BEÄNH=4Ù

• - B2o!& haân nhaùnh t%aùi t%)3ù! <8AH> th)3Mng gaX h3n ,2o!&haân nhaùnh t%aùi sau <8$H>

• - Th)#! haMnh ta !ha0n 1oaùn 8AH

&hi !où t%u#! 2eä!h t%aùi ,eänh 2yùnghóa 2aM &hi t%u#! .S aâm h3n- 1oä+

• - Nhn D 55 7 neáu aâm ( !ha!

!han t%u#! \ - 1oä+

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• Ta/n soá b?7$.]+:;7.S]+Z7T]+;

• T%u#! .S ] -b 1oä<t%u#! 2eä!h t%ai>+

• Nh@ xoang BT7 Waãnt%uye/n 3* nuùtxoang OaM A6 BT+

• %S 557 5557 a69+• U8 ( =l ,aátth)3Mng- B2o!&haân nhaùnh t%aùit%)3ù!

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- =UÙN CAÙC BO7NG TIM

• $h 1a#i thaát t%aùi (C Soùng S saâu nhaát

3* 6:6? !oäng soùng. !ao nhaát 3* 6G6;\ G mm OaMhoaX! .3* a68 \ :? mm+

C Bn t%eân G tuo0i+C Hnh a*nh Pta`ng

gaùnh thaát t%aùi+

:Z

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  :Z$$  Tang gan

ta0t T

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=Yn ta$ n

• -Nh@ xoang BT (soùng $ W)3ng 3* D 55+$ !où the0 7 - hay haiha 3* 6:+

• -83ùn nhó ha*i ( $ !aonho#n+ $ u2mona2e xem 3* 557 5557 a69+

• -83ùn nhó t%aùi ( $

2)ng 2a#! 1aMf OaMgia4n %oäng \+:?+ $mit%a2e xem 3* 57 557 a68OaM hoaX! ha aâm!u*a soùng $ 6: saâu+

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=Yn n P 8 P !ao Y# II

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=UÙN NH T*AÙI

• $ \ +:?• $ !où ? 1cnh !aù!h

nhau +E• $ te%mina2 _o%!e ( ha

aâm soùng $ 3* 6:

%oäng h3n +E OaMsaâu h3n : mm+

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PHf ÑA>I THAÁT PHAÛI

• Uhoù !ha0n 1oaùn+• l3#i yù &hi &eát h3# nhie/u yeáu toá (

C T%u#! 2eä!h $ hoaX! ,aát 1@nh+C 83ùn nhó $+C Da#ng ,2o!& nhaùnh $ &hoâng hoaMn toaMn

%S.fC Ñieän theá thaá <&hK heá thu*ng>+C Soùng S to/n ta#i 3* taát !a* !aù! !huye0n

1a#o t%)3ù! tim+C Ta`ng gaùnh thaát $+

C . !ao 3* 6:+

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*WH

• T%u#! $• 83ùn nhó $

• . !ao 6:• S 6G76;

5tK"ï! 2Z ñoä * W2 [ $$ *

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  5tK"ï! 2Z ñoäQ * W2 [ $$Q *aW* Z $$5 * W2 d % WZ<W[

2 $$5

*WH 8 *A, 26 * W2 *<%

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*WH 8 *A, 26 Q * W2Q *<%W[ h 2

Z THA4 ÑOI )*%T Xa(

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Z- THA4 ÑOI )*%T Xa(NHO7I MAÙ CU TIM

• - Uhaâu uan t%o#ng nhaát !u*a Oieä!

haân tK!h moät =l !hKnh 2aM Oieä!1aùnh giaù !aù! thay 1o0i !u*a -.-ST-T+

• - a/n ha*i 1aùnh giaù moät !aù!h!où heä thoáng 1e0 &hoâng ,o* soùt ,aát !)ù moät thay 1o0i naMo+

ÑAÙNH GIAÙ CAÙC THA4 ÑOI )

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ÑAÙNH GIAÙ CAÙC THA4 ÑOI )-*-%-T

• - où the0 ,o* ua !huye0n 1a#o a6.+• - S!an taát !a* :: 2eaWs !oMn 2a#i 1e0 tm

soùng + lhi nhaän !aù! 2eaW !où soùng

+• - Fem !où . qaOe %og%essionC huye0n 1a#o t%ung gian !où 3* O@ t%K BT LC où soùng . !ao <hoaX! %S%f> 3* 6: &hoâng L

• - S!an 3* taát !a* !aù! 2eaW <t%)M a6.>!aù! thay 1o0i !u*a 1oa#n ST <!heânh2eân hay !heânh xuoáng >- OaMhoaX!

!aù! thay 1o0i !u*a soùng T

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C".e/n ñaïo tK&Y! ti$

• :- 6e!to% &h)* !)#! 1a/utieân 2aM &h)* !)#! Oaù!h2ieân thaát t)M T sang $<%6: OaM 6;>

• ?- Sau 1où+ Oe!to% &h)*!)#! !hKnh se4 1i t)M $ sang T <Wo &hoái !3 thaát t%aùi)u theá>  soùng aâm 3*6:7 6? OaM W)3ng 3* 6G76;+

• - Soùng . ta`ng Wa/n OaM!huye0n 1a#o t%ung gianse4 3* 676E

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CAÙC NHOÙM CH4EN ÑA>O

• aù! 2eaW ,UÙI ( 557 5557 a69+• aù! 2eaW WAÙCH ( 6:7 6?+

• aù! 2eaW T*\UÙC ( 6?7 67 6E+• aù! 2eaW BEÂN (

C 6E-6;

C Beân !ao ( 57 a68

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* bAWE P*OG*E%%ION

• - Bnh th)3Mng . ta`ng !ao Wa/n t)M $sang T+

• - $oo% . qaOe %og%ession ( . t)M 6:1eán 6-6E khoâng gia taêng bieân ñoä hoaX! ta`ng %aát Kt+C 86H7 .6H7 ,eänh ho0i <I$D7 hen>

C N"T thaMnh t%)3ù! hay t%)3ù! Oaù!hC aù! .8 Waãn t%uye/n < 8BBB7 8AHB[ 56D>+C Beänh !3 tim+C Baát th)3Mng thaMnh ng)#!7 no%ma2 Oa%iant+

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POO* * bAWE P*OG*E%%ION

%OÙNG )<%OÙNG T ÑAÛO BfNH

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%OÙNG )<%OÙNG T ÑAÛO-BfNHTH\UcNG

"oät OaMi 2eaW ,nh th)3Mng !où soùng hay T 1a*o+

5557 a697 a687 aO.76:

%ong ) Xa( T 8 n&jng ñie"

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%ong ) Xa( T 8 n&jng ñie"!an nY

• Soùng <&h)* !)#! Oaù!h> th)3Mng thaáy 3*!aù! !huye0n 1a#o ,eân <57 a687 6G76;> t%eânng)3Mi BT+C

He# <[+E> OaM nho* <[?Gr ,ieân 1oä soùng .>

• Soùng th)3Mng thaáy 3* D 5 OaM a68 &hi t%u#!3* phía traùi !u*a ; 1oä OaM 3* 557 5557 a69 &hit%u#! 3* phía phaûi !u*a ; 1oä+

• Soùng T 1a*o 13n 1oä! 3* 5557a69 hoaX! a68th)3Mng &hoâng mang yù nghóa thieáu maùu !3tim &hi .S !u4ng aâm 3* !aù! 2eaW 1où+

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%T-T 8 n&jng ñe" !an nY

• Ñoa#n ST ,at 1a/u t)M 1ie0m  <!uoái .S> 1i2aMi !ao Wa/n 2eân hoaM 2aãn OaMo s)3Mn 2eân!u*a soùng T7 sau &hi 1eán 1cnh7 noù ha#

nhanh xuoáng 1)3Mng 1a^n 1ieän hoaX! noáiua soùng Q  &hoâng !où haân !aù!h %o4%aMng gi)4a ST-T <smooth>7 soùng T &hoâng1oái x)ùng

• Soùng T BT !uMng !hie/u O3ùi .S <t%)M!huye0n 1a#o ,eân $>

• T 2uoân 2uoân W)3ng 3* 57 557 676E76G76;+• T 2uoân 2uoân aâm 3* a6.+

HÍNH ,A>NG CÛA %T

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HÍNH ,A>NG CÛA %TCHEÂNH =EÂN

ST !heânh 2eân Wa#ng !ong2o4m <!on!aOe> th)3Mng 2aM2aMnh tKnh gaX 3* ng)3Mi

BT <taùi !)#! s3ùm>+PÑ5=Q NAY Hv ÑQNl

UH5 B=RNH NHAkN UHIkNlI ÑAQ Nlw

ST !heânh 2eân Wa#ng !ong2o/i <!onOex> th)3Mng Woto0n th)3ng !3 tim !aá<N"T>+

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EaKL. Ke1oLaKiDation

ConXe@ %T eLeXation 8

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ConXe@ %T eLeXation 8IIQIIIQaXR

 Á

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%T CHEÂNH ;OÁNG

• Thieáu maùu !3 tim+• Ta`ng gaùnh thaát+• Digita2is+

• lia*m U"g+• Thay 1o0i 2ieân uan nh@ tim+•

Baát &yM moät &eát h3# naMo !u*a!aù! nn t%eân+

0

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Ca! aïng %T !en @"o0ng

7 Ù U

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NHO7I MAÙ CU TIM

Ñaùnh giaù neq onset !hest ainC Nh)4ng thay 1o0i !aá tKnhC où nho/i maùu !3 tim !u4 hay &hoâng

Beänh nhaân naMy !où ,@ N"T hay&hoâng L

Neáu !où th ,@ OuMng naMo7 m)ù! 1oä 2an

%oäng7 !où &eMm theo !aù! .8 g &haù! hay&hoâng <.8NT7 ,2o!& nhó thaát >où !a/n ha*i !an thieä ma#!h OaMnh

&hoâng L

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ECG T*ONG NMCT

• :- ST !heânh 2eân+• ?- Soùng T aâm <1a*o>+

• - Fuaát hieän ,eänh 2yù+• E- ST !heânh xuoáng 3M !huye0n 1a#o

soi g)3ngf+

,IEkN TIEÁN CÛA NMCT

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,IEkN TIEÁN CÛA NMCTCAÁP

• - A OaM B ( BT 7 no%ma2 seta2qaOe

• - C ( g1 toái !aá + Soùng T%oäng %a7 nhoâ !ao 2eân nh)

muoán &eùo 1a#n St 2eân+ Thoaùng ua+• - , ( ST !heânh 2eân OaM xuaát

hieän hoa#i t)*+• - E OaM R ( saâu h3n 7 ST

!heânh 2eân toái 1a7 xuaáthieän T 1a*o+• - G ( !aù! thay 1o0i ST- T t%3*

2a#i ,nh th)3Mng7 to/n ta#i hoa#i t)*+

NMCT ta(n &Yi 8 )Q %T

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NMCT ta(n &Yi 8 )Q %T!en Len T ña#o Y# IIQ IIIQ aXR

NMCT !"j ta(n &Yi 8 ) IIQ

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NMCT !"j ta(n &Yi 8 ) IIQIIIQ aWR

NMCT tK&Y! Xa!L W2 W6 W: ) F ä

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anteKoDe1taL 8 W2QW6QW: ) FeänL. Xa( ta. ño/i %T-T

NMCT 8 ) Feän L. Xa( %T

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NMCT 8 ) Feän L. Xa( %T!en Len W6-W[Q ,IQ aW=5

%4%TEMIC APP*OACH

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%4%TEMIC APP*OACH

• :- *ATE ( 8QART • ?- *H4THM ( $ 2uoân W)3ng 3* D57 55+ Ñe/u L7 2ieân

heä $ OaM .S7 .S %oäng hay he#+• - INTE*WA=% ( $. WaMi \ +?7 .S %oäng \ +:7

T WaMi \ ..+ Neáu .S %oäng  .BBB7 8BBB756D7 j$j+

• E- A;I% ( xem 3* D 5 OaM a68+ BT7 .AD7 8AD7 ,aát1@nh

• G- H4PE*T*OPH4  ( thaát t%aùi <G7:?>7 thaát $ <.!ao 6:7 t%u#! $7 S saâu 6;z7 nhó $ <$ heá \ ?+G>7nhó t%aùi <$ mit%a2e7 ? 1cnh7 \+:?>+

• ;- INRA*CTC qaOe ( no%ma2 seta2 <57 87 6G7;> - 5557 a69+C . qaOe %og%ession+