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CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ
SUY TIM
(Diagnosis and management of heart failure)
Taàm quan troïng cuûa Suy tim
 1.000.000 ca môùi/ naêm/ theá giôùi
 Taàn suaát suy tim:
* Hoa Kyø: 5 trieäu
* Chaâu Aâu: 6,5 trieäu
* Nhaät: 2,4 trieäu
* Vieät Nam: 280 000 – 1,4 trieäu
(döïa theo taàn suaát chaâu Aâu)
 ¾ b/n suy tim nhaäp vieän töû
vong/ 5 naêm*
CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
Tû lÖ suy tim theo tuæi
(Sè liÖu tæng hîp tõ nghiªn cøu trong 34 n¨m t¹i
Framingham - Hoa kú)
0.8
2.3
4.9
9.1
0
2
4
6
8
10
50-59t 60-69t 70-79t 80-89t
Tuæi
(%)
Tû lÖ míi m¾c suy tim theo tuæi vµ giíi
(Sè liÖu nghiªn cøu trong 34 n¨m
T¹i Framingham - Hoa kú)
1
2 3 5 6
9
13
17
28
31
0
5
10
15
20
25
30
35
45-54t 55-64t 65-74t 75-84t 85-94t Tuæi
(%o)
Tiªn lîng suy tim
Nguyeân nhaân Suy tim
TL : Cardiovascular Therapeutics. WB. Saunder Co. 2002, p. 294
NGUYEÂN NHAÂN SOÁ BEÄNH NHAÂN (%)
TMCB 936 (50.3)
Khoâng TMCB 925 (49.7)
Nguyeân nhaân tìm thaáy 678 (36.4)
Voâ caên 340 (18.2)
Van tim 75 (4.0)
THA 70 (3.8)
Röôïu 34 (1.8)
Virus 9 (0.4)
Sau sinh 8 (0.4)
Beänh amyloide 1 (0.1)
Khoâng ñaëc hieäu 141 (7.6)
Khoâng thaáy nguyeân nhaân 247 (13.3)
CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
Xu huíng thay ®æi Nguyªn nh©n
g©y suy tim t¹i hoa kú
(Nghiªn cøu Framingham n¨m 1950 so víi n¨m 1987)(*)
Nguyªn nh©n Sù thay ®æi tû lÖ % m¾c suy tim
Nam N÷
- BÖnh §MV + 41 + 25
- TiÓu ®êng + 21 + 24
- THA - 10 - 27
- Dµy TT - 23 - 33
- BÖnh van tim - 45 - 32
(*) Kanel 1994; Br Heart J, suppl;72:3-9.
ÑÒNH NGHÓA SUY TIM
 “In these hearts…their reserve force is lost, and with it
the power of meeting the demands in maintaining the
circulation during severe exertion” (by Osler, in 1892)

 “A condition in which the heart fails adequately to
discharge its contents” (by Lewes, in 1933”
 “A state in which the heart fails to maintain an
adequate circulation for the needs of the body despite
a satisfactory filling pressure: (by Wood, in 1950)
 “A pathophysiological state in which an abnormality of
cardiac function is responsible for the failure of the
heart to pup blood at a rate commensurate with the
requirements of the metabolizing tissues” (by
Braunwald, in 1986)
ÑÒNH NGHÓA SUY TIM
“A clinical syndrome caused by an
abnormality of the heart and recognized
by a characteristic pattern of
haemodynamics, renal, neural and
hormonal response”
(by Poole-Wilson, in 1985)
CAÙC CÔ CHEÁ BUØ TRÖØ TRONG SUY TIM
1. HOAÏT HOÙA THAÀN KINH NOÄI TIEÁT
(NEUROHORMONAL ACTIVATION)
2. GIAÕN TAÂM THAÁT
(VENTRICULAR DILATATION)
3. PHÌ ÑAÏI TAÂM THAÁT
(VENTRICULAR HYPERTROPHY)
CÔ CHEÁ BUØ TRÖØ TRONG SUY TIM TAÂM
THU
HOAÏT HOÙA
THAÀN KINH
GIAO CAÛM
TAÊNG CO
SÔÏI CÔ
PHÌ ÑAÏI
TAÂM THAÁT
TAÊNG KHOÁI
CÔ TIM
TAÙI PHAÂN PHOÁI
LÖU LÖÔNG
TÓNH MAÏCH
ÖÙ MUOÁI
VAØ NÖÔÙC
GIAÕN
TAÂM THAÁT
TAÊNG CUNG LÖÔÏNG TIM (CO)
MOÁI LIEÂN QUAN GIÖÕA AÙP LÖÏC ÑOÅ ÑAÀY THAÁT
VAØ CUNG LÖÔÏNG TIM - ÑÖÔØNG CONG
STARLING
GAÉNG SÖÙC
(taêng co boùp
giaûm haäu taûi)
BÌNH THÖÔØNG
GIAÛM CO BOÙP
TAÊNG HAÄU TAÛI
SUY TIM
CUNGLÖÔÏNGTIM
(CO)l/min
AÙP LÖÏC ÑOÅ ÑAÀY - TIEÀN TAÛI (mmHg)
10
5
10 20 30
VOØNG BEÄNH LYÙ TRONG SUY TIM MAÕN
TÍNH
NHAÙNH XUOÁNG
ÑÖÔØNG CONG
STARLING
NHÒP NHANH
KHOÂNG
TÖÔNG THÍCH
TAÙC DUÏNG ÑOÄC
TRÖÏC TIEÁP CUÛA
CATECHOLAMINE
ÑAÙP ÖÙNG
THAÀN KINH NOÄI TIEÀT ÖÙ DÒCH CO THAÉT
TÓNH MAÏCH
( TIEÀNTAÛI)
CO THAÉT
ÑOÄNG MAÏCH (
HAÄU TAÛI)
GIAÕN BUOÀNG TIM
TAÊNG STRESS
THAØNH TIM
ROÁI LOAÏN
CHÖÙC NAÊNG
TAÂM THAÁT
VAI TROØ CUØNG TAÙC ÑOÄNG, CUØNG ÑIEÀU HOØA CUÛA HEÄ THOÁNG
THAÀN KINH GIAO CAÛM (ADRENERGIC VAØ HEÄ THOÁNG RENIN-
ANGIOTENSIN (RAAS)
ADRENEGIC
Vasoconstriction
Volume
Overload
Direct
Cardiotoxicity Increased
Heart rate &
contractility
Increased
MVO2
MYOCYTE
DAMAGE HYPERTROPHY
RENIN-ANGIOTENSIN
Increased
Wall Stress
DECREASED CONTRACTILITY
NHÖÕNG ÖÙNG DUÏNG ÑIEÀU TRÒ TÖØ HIEÅU BIEÁT
CÔ CHEÁ BEÄNH SINH CUÛA SUY TIM
1. Vai troø thuoác ÖÙc cheá Men Chuyeån.
2. Söï nhìn nhaän laïi vai troø thuoác Öùc cheá thuï theå .
Caùc thuoác öùc cheá thuï theå  coù tính giaõn maïch.
3. Caùc thuoác ñoái khaùng endothelin
4. Caùc cô sôû khoa hoïc cho vieäc tìm kieám phöông
phaùp ñieàu trò ôû möùc phaân töû : Lieäu phaùp GENE.
Tieâu chuaån Framingham giuùp
chaån ñoaùn Suy tim
TIEÂU CHUAÅN CHÍNH TIEÂU CHUAÅN PHUÏ
Khoù thôû kòch phaùt veà ñeâm Phuø chi Giaõn
TM Ho veà ñeâm Ran
Khoù thôû gaéng söùc
Tim lôùn Gan lôùn
Phuø phoåi caáp TDMP
T3, ngöïa phi Dung tích soáng giaûm
Taêng aùp löïc TM khoaûng 1/3 bình thöôøng
(> 16 cm H2O) Tim nhanh > 120/ph
Coù phaûn hoài gan TM coå
Chaån ñoaùn xaùc ñònh : 1 tieâu chuaån chính keøm 2 tieâu chuaån phuï
TL : Cardiovascular Therapeutics. WB. Saunder Co. 2002, p. 297
Tieâu chuaån Chaâu Aâu chaån
ñoaùn Suy tim
1. Coù trieäu chöùng cô naêng suy tim (luùc
nghæ hay trong khi gaéng söùc)
vaø
2. Chöùng côù khaùch quan cuûa roái loaïn
chöùc naêng tim (luùc nghæ)
vaø
3. Ñaùp öùng vôùi ñieàu trò suy tim (trong
tröôøng hôïp coù nghi ngôø chaån ñoaùn)
TL: Beänh hoïc Tim maïch, NXB Y hoïc 2002, p 223
CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
Bnp giuùp phaân bieät khoù thôû do
Suy tim vaø khoù thôû khoâng do tim
TL: Shapiro BP et al. Mayo Clin
Proc 2003; 78: 481 - 486
CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
Noàng ñoä BNP trong suy tim
TL : Morrison LK et al. J Am Coll Cardiol 2002 ; 39 : 202
CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
Caùc ngyeân nhaân laøm naëng suy tim thöôøng gaëp (1)
 Khoâng do tim :
- Khoâng tuaân thuû ñieàu trò (muoái, nöôùc, thuoác)
- Uoáng theâm thuoác khaùc : thuoác choáng loaïn nhòp
ngoaïi tröø amiodarone, cheïn beâta, NSAIDs,
verapamil, diltiazem
- Nhieãm truøng
- Roái loaïn chöùc naêng thaän (lôïi tieåu quaù nhieàu)
- Thuyeân taéc phoåi
- THA
- Roái loaïn chöùc naêng tuyeán giaùp
- Thieáu maùu
CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
 Do tim :
- Rung nhó
- Loaïn nhòp thaát hoaëc loaïn nhòp treân thaát khaùc
- Tim chaäm
- Thieáu maùu cuïc boä cô tim (thöôøng khoâng trieäu
chöùng cô naêng), bao goàm NMCT
TL: Cleland J et al. Guidelines for the diagnosis and treatment of heart failure : executive summary
(update 2005). Eur. Heart J. 2005 ; 26 : 1115-1140
Caùc ngyeân nhaân laøm naëng suy tim thöôøng gaëp (2)
CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
Chu tr×nh dÉn ®Õn suy tim
BÖnh §MV
ThiÕu m¸u c¬ tim
HuyÕt khèi §MV
NMCT
Rèi lo¹n nhÞp tim
ho¹i tö vïng c¬ tim
Suy tim
YÕu tè nguy c¬
(THA, RL lipid, ®t®...
V÷a x¬ §M
Dµy thÊt tr¸i
T¸i cÊu tróc c¬ tim
Gi· n thÊt tr¸i
Tö vong
Caùc giai ñoaïn Suy tim theo khuyeán caùo cuûa AHA/ACC
(1)
Giai ñoaïn Moâ taû Thí duï
A Nguy cô cao suy tim vì coù caùc THA, BÑMV, ÑTÑ, tieàn söû yeáu
toá phoái hôïp suy tim ñieàu trò thuoác ñoäc cho tim, Khoâng beänh
van tim, cô tim, uoáng nhieàu röôïu, tieàn söû maøng ngoaøi tim
thaáp tim, beänh söû gia ñình
bò beänh cô tim.
B Coù beänh tim thöïc theå nhöng Sôïi hoùa hoaëc daày thaát traùi. chöa
coù trieäu chöùng suy tim Daõn thaát traùi hoaëc giaûm co
cô. Beänh van tim khoâng
trieäu chöùng cô naêng; tieàn
söû NMCT
TL: Hunt S et al. Guidelines for the evaluation and management of chronic heart failure in the adult. J Am Coll Cardiol
2001; 38:2101-2113
CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
Caùc giai ñoaïn Suy tim theo khuyeán caùo cuûa AHA/ACC
(2)
Giai ñoaïn Moâ taû Thí duï
C Coù beänh tim thöïc theå. Tieàn söû Meät hoaëc khoù thôû do roái hoaëc
hieän taïi coù suy tim loaïn taâm thu thaát traùi. Hieän
taïi khoâng trieäu chöùng cô
naêng do ñang ñieàu trò noäi
suy tim.
D Coù beänh tim thöïc theå naëng Thöôøng xuyeân nhaäp
keøm suy tim luùc nghæ maëc duø vieän.Caàn truyeàn thuoác co ñieàu
trò noäi khoa toái ña; caàn can cô tim. Caàn maùy trôï tim.
thieäp ñaëc bieät. Chôø gheùp tim.
TL: Hunt S et al. Guidelines for the evaluation and management of chronic heart failure in the adult. J Am Coll Cardiol
2001; 38:2101-2113
CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
CHIEÁN LÖÔÏC ÑIEÀU TRÒ SUY TIM
GIAI ÑOAÏN NAÊM PHÖÔNG PHAÙP ÑIEÀU TRÒ
I 1948 - 1968 DIGITALIS, Lôïi tieåu
II 1968 - 1978 Thuoác giaõn maïch
III 1978 - 1998 Thuoác co sôïi cô khoâng phaûi
Digitalis
IV 1988 - 1998 Thuoác öùc cheá men chuyeån
Chieán löôïc ñieàu trò phoøng ngöøa
(preventive therapies),Chen thu
the Beta
V ? Ñieàu chænh caùc baát thöôøng cô
tim ôû möùc teá baøo hoïc.
Muïc tieâu ñieàu trò
 Giaûm trieäu chöùng cô naêng vaø caûi thieän
khaû naêng vaän ñoäng.
 Ngaên caûn tieán trieån (giaûm taùi caáu truùc-
remodeling)
 Keùo daøi ñôøi soáng
CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
Caùc phöông thöùc ñieàu trò suy tim
Xöû trí khoâng thuoác
Bieän phaùp chung
Vaän ñoäng vaø taäp luyeän
Ñieàu trò baèng thuoác
UCMC Loi tieåu
Cheïn beâta Doái khaùng aldosterone
Cheïn thuï theå AGII Digitalis
Dan mach Taêng co cô tim
Khaùng ñoâng Thuoác choáng loaïn nhòp ; oxy
Phaãu thuaät vaø duïng cuï
Taùi löu thoâng ÑMV (nong, phaãu thuaät bac cau)
Phaãu thuaät (thay /söûa van timù)
Taïo nhòp 2 buoàng thaát
Chuyeån nhòp phaù rung caáy ñöôïc (ICD)
Duïng cuï trôï thaát ; tim nhaân taïo ; gheùp tim
TL Cleland J et al. Guidelines for the diagnosis and treatment of heart failure : executive summary (update
2005). Eur. Heart J. 2005 ; 26 : 1115-1140
Baäc thang ñieàu trò Suy tim taâm thu
Maùy trôï thaát traùi
Gheùp tim
Taïo ñoàng boä thaát
Taêng co cô tim
Nitrates, hydralazine
SpironolactoneAs substitute for K+
Digoxin
Cheïn beâta
Phoái hôïpLôïi tieåu
UCMC
Haïn cheá Natri. Traùnh röôïu. Khuyeán khích laøm vieäc.Theo doõi caân naëng
NYHA I
Khoâng TC/CN
NYHA II
TC/CN nheï
NYHA III
TC/CN vöøa phaûi
NYHA IV
TC/CN naëng
TL: Massie BM.
Management of the
patient with chronic
heart failure. In
Cardiology, Mosby
2nd ed 2004, p 880
2
1
Caùc bieän phaùp khoâng thuoác trong ñieàu trò Suy tim maïn
Tieáp caän Khuyeán caùo
Dinh döôõng 2,5g natri/ngaøy (2g neáu suy tim naëng)
Haïn cheá nöôùc, ñaëc bieät ôû b/n haï natri maùu
Aên ít môõ, ít caloric (khi caàn)
Khoâng uoáng röôïu
Hoaït ñoäng vaø Tieáp tuïc coâng vieäc thöôøng ngaøy.
taäp theå löïc Taäp theå löïc, phuïc hoài tim.
Höôùng daãn b/n vaø Caét nghóa veà suy tim vaø trieäu chöùng.
gia ñình Lyù do haïn cheá muoái.
Caùc thuoác vaø söï tuaân thuû
Caân moãi ngaøy
Nhaän bieát caùc daáu suy tim naëng hôn.
TL: Massie BM. Management of the patient with chronic heart failure. In Cardiology, Mosby 2nd ed 2004, p 880
CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
Lôïi tieåu trong ñieàu trò Suy tim
 Vai troø khoâng thay theá ñöôïc cuûa lôïi tieåu trong
ñieàu trò suy tim sung huyeát vaø phuø phoåi caáp
 Nguy cô töû vong do loaïn nhòp khi duøng lôïi tieåu
maát Kali laâu daøi
 Phoái hôïp Spironolactone lieàu thaáp (25mg/ngaøy)
vôùi ñieàu trò chuaån suy tim sung huyeát giuùp giaûm
töû vong
CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
Vò trí taùc duïng cuûa caùc lôïi tieåu
TL : Bristou MR et al. In Braunwald’s Heart Disease. WB Saunders 2005 7th ed, p. 573
CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
Aldosterone/suy tim
TL : Opie LH. Drugs for the
Heart, 2005, 6th ed, p. 14
CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
Caùc thuoác ñoái khaùng Aldosterone trong ñieàu trò
Suy tim maïn
Thuoác Lieàu khôûi ñaàu Lieàu ñích Keát quaû töø nghieân cöùu lôùn
thöôøng duøng thöôøng duøng
Spironolactone 25mg q24h 25mg q24h RALES *:  soáng
coøn, 
nhaäp vieän do suy tim
Eplerenone 50mg q24h 50-100mg EPHESUS **:  17% töû
q24h vong b/n sau NMCT coù EF
< 40% vaø suy tim.
TL: * Pitt B et al.N Engl J Med 1999; 341: 709- 717
CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
Söû duïng thuoác ñoái khaùng aldosterone/suy
tim
 Caân nhaéc söû duïng khi b/n coøn NYHA III-IV maëc duø UCMC vaø lôïi
tieåu
 Kali maùu < 5mmol/L vaø creatinine maùu < 250micromol/L
 Theâm lieàu thaáp : spironolactone 12,5-25mg/ng hoaëc eplerenone
25mg/ngaøy
 Kieåm tra K+ maùu vaø creatinine/sau 4-6 ngaøy
 K+ 5-5,5mmol/L : giaûm 50% lieàu ñoái khaùng aldosterone
 Sau 1 thaùng neáu coøn trieäu chöùng cô naêng vaø kali maùu bình thöôøng :
taêng spironolactone 50mg/ngaøy, kieåm tra K+ sau 1 tuaàn
TL : Cleland J et al. Guidelines for the diagnosis and treatment of heart failure : executive summary (update 2005).
Eur. Heart J. 2005 ; 26 : 1115-1140
CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
Hieäu quaû cuûa digoxin trong ñieàu trò
Suy tim maïn
TL: Massie BM.
Management of the
patient with chronic
heart failure. In
Cardiology, Mosby
2nd ed 2004, p 890
Neân söû duïng Digoxin lieàu thaáp
thay vì lieàu cao
All-cause mortality Hospitalization
(%) (%)
Placebo (n = 2611) 36.2 67.8
Digoxin (n = 1171) 36.6 66.8
0.5 – 0.8 ng/ml 29.9 61.9
0.9 – 1.1 ng/ml 38.8 72.4
1.2 ng/ml 48.0 70.4
TL: Erdmann E. Eur. Heart J 2003; 5 (suppl I): I 64 – I 68
Hai nhieäm vuï cuûa UCMC : phoøng
ngöøa vaø ñieàu trò beänh tim maïch
TL : Opie LH. Drugs for
the Heart, 2005, 6th ed, p
105
Lieàu löôïng UCMC coù hieäu quaû trong ñieàu trò suy tim
hoaëc roái loaïn chöùc naêng taâm thu TT
(caùc nghieân cöùu lôùn, coù kieåm soaùt)
TL : Cleland J et al. Guidelines for the diagnosis and treatment of heart failure : executive summary (update 2005). Eur. Heart J. 2005 ; 26
: 1115-1140
Nghieân cöùu veà töû vong Thuoác Lieàu muïc tieâu Lieàu trung bình/
ngaøy
Nghieân cöùu treân suy tim
CONSENSUS Trial Study Enalapril 20mg b.i.d. 18.4mg
Group, 1987
V-HeFT II, 1991 Enalapril 10mg b.i.d. 15.0mg
The SOLVD Investigators Enalapril 10mg b.i.d. 16.6mg
ATLAS, 1999 Lisinopril High dose : 32.5-35 mg daily
Low dose : 2.5-5mg daily
N/c treân RLCN thaát traùi keøm hay khoâng keøm suy tim/NMCT
SAVE, 1992 Captopril 50mg t.i.d. 127mg
AIRE, 1993 Ramipril 5mg b.i.d. (not available)
TRACE, 1995 Trandolapril 4mg daily (not available)
 C¸c con ®êng t¹o thµnh Angiotensin II vµ
 c¬ chÕ t¸c ®éng trªn nh÷ng thô thÓ cña nã
 Thuoác öùc cheá Angiotensin II choïn loïc raát cao tröïc tieáp treân thuï theå AT1
ANGIOTENSIN II
AT1 AT2
- Taêng sinh
- Co maïch
- Taêng tröông löïc giao caûm
- Choáng taêng sinh
- Daõn maïch
- Taêng löu löôïng maïch vaønh
Taùc duïng coù haïi Taùc duïng coù lôïi
ARBs
Öùc cheá choïn loïc
treân thuï theå AT1
Thuoác öùc cheá thuï theå Angiotensin II:
choïn loïc treân thuï theå AT1
Caùc thuoác cheïn thuï theå Angiotension II/
Suy tim
Thuoác Lieàu löôïng (mg/ngaøy)
Ñaõ coù nghieân cöùu chöùng minh hieäu quaû/taät beänh, töû vong
Candesartan cilexetil 4-32
Valsartan 80-320
Coù theå duøng
Eprosartan 400-300
Losartan 50-100
Irbesartan 150-300
Telmisartan 40-80
TL : Cleland J et al. Guidelines for the diagnosis and treatment of heart failure : executive summary (update 2005). Eur. Heart J. 2005 ; 26 : 1115-1140
Taùc duïng coù haïi
cuûa angiotensin
II
leân heä tim maïch
TL : Opie LH. Drugs for the
Heart, 2005, 6th ed, p. 136
CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
C¬ chÕ ho¹t ®éng thÇn kinh giao c¶m
trong suy tim
T¨ng tr¬ng lùc giao c¶m TW
T¨ng ho¹t ho¸ giao c¶m Tim T¨ng tr¬ng lùc giao c¶m ë
ThËn vµ m¹ch m¸u
Thô thÓ 1 Thô thÓ 2 Thô thÓ 1
Ph× ®¹i vµ huû ho¹i TB c¬ tim
Gi·n c¬ tim, thiÕu m¸u côc bé c¬
tim, rèi lo¹n nhÞp tim.
Co m¹ch
T¨ng t¸i hÊp thu níc
C¬ chÕ t¸c ®éng cña thuèc
chÑn giao c¶m trong suy tim
Ho¹t ho¸ hÖ giao c¶m
Tæn thư¬ng c¬ tim
Thô thÓ 1 Thô thÓ 2 Thô thÓ 1
TiÕn triÓn suy tim
Metoprolol
Bisoprolol
Bucidolol
Carvedilol
Phöông thöùc söû duïng cheïn beâta/
ñieàu trò suy tim
Cheïn beâta Lieàu Taêng lieàu Lieàu muïc tieâu Thôøi gian
khôûi ñaàu (mg/ngaøy) (mg/ngaøy) chænh lieàu
(mg)
Bisoprolol 1.25 2.5,3.75,5,7.5,10 10 tuaàn leã/thaùng
Metoprolol 12.5/25 25,50,100,200 200 tuaàn leã/thaùng
succinate CR
Cavedilol 3.125 6.25,12.5,25,50 50 tuaàn leã/thaùng
Nebivolol 1.25 2.5,5,10 10 tuaàn leã/thaùng
TL Cleland J et al. Guidelines for the diagnosis and treatment of heart failure : executive summary (update 2005).
Eur. Heart J. 2005 ; 26 : 1115-1140
LiÒu ®Çu tiªn vµ duy tr× cña
carvedilol
3,125mg x
2
6,5 mg x 2
12,5mg x 2
25mg x 2
6,5 mg x 2
Ñieàu trò baèng duïng cuï (Device
Therapy)
 Maùy chuyeån nhòp phaù rung caáy ñöôïc (ICDs :
Implantable cardioverter defibrillators)
 Taïo nhòp 2 buoàng thaát hay taùi ñoàng boä tim
(Biventricular Pacing or Cardiac
Resynchrorrization Therapy)
 Duïng cuï trôï taâm thaát (Ventricular Assist
Devices)
CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
Ñieàu trò baèng taùi ñoàng boä tim
Chæ ñònh cuûa ICDs
 Roái loaïn chöùc naêng thaát traùi/soáng soùt sau ñoät töû
 Nhòp nhanh thaát keùo daøi coù trieäu chöùng cô naêng
 Nhòp nhanh thaát khoâng keùo daøi, khoâng trieäu
chöùng nhöng khôûi kích ñöôïc
 Beänh cô tim TMCB coù PXTM<30%
TL : Bristow MR, Lowes BD. In Braunwald’s Heart Disease 2005, WB Saunders 7th ed, p.610
Nghieân cöùu MADIT II : ICDs caûi thieän soáng
coøn, nhaát laø ôû b/n QRS>0,12 giaây
TL : Moss AJ et al. N. Engl J Med 2002 ; 346 : 877
TL: Young JB. Surgery, Assist devices and cardiac transplantation for heart failure. In Cardiology, Mosby 2nd
ed 2004, p 925
Duïng cuï trôï giuùp tuaàn hoaøn cô hoïc: Novacor & Thoratec
Duïng cuï trôï giuùp tuaàn hoaøn cô hoïc:
Novacor & Debakey - Nasa
TL: Young JB. Surgery,
Assist devices and cardiac
transplantation for heart
failure. In Cardiology, Mosby
2nd ed 2004, p 926
Ñieàu trò phaãu thuaät
 Gheùp tim (cardiac transplantation)
 Phaãu thuaät baéc caàu ÑMV (CABG)
 Taùi taïo van 2 laù/roái loaïn chöùc naêng thaát
traùi
Phaãu thuaät baéc caàu ÑMV
TL : Braunwald E. Heart Disease, WB Saunders 6th ed 2001, p. 1304
GHEÙP TIM: gheùp tröïc
tieáp (orthotopic) vaø
gheùp keøm
(heterotopic)
- Gheùp keøm: raát ít söû duïng
Baäc thang ñieàu trò Suy tim taâm thu
Maùy trôï thaát
traùi
Gheùp tim
Taïo ñoàng boä thaát
Taêng co cô tim
Nitrates, hydralazine
SpironolactoneAs substitute for K+
Digoxin
Cheïn beâta
Phoái hôïpLôïi tieåu
UCMC
Haïn cheá Natri. Traùnh röôïu. Khuyeán khích laøm vieäc.Theo doõi caân naëng
NYHA I
Khoâng
NYHA II
TC/CN nheï
NYHA III
TC/CN vöøa phaûi
NYHA
IV
TL: Massie BM.
Management of the
patient with chronic
heart failure. In
Cardiology, Mosby
2nd ed 2004, p 880
2
1
Keát luaän
 Suy tim : coøn laø vaán ñeà lôùn trong töû vong tim
maïch
 Cheïn beâta, UCMC, cheïn thuï theå AGII, ñoái khaùng
aldosterone : thieát yeáu trong ñieàu trò suy tim

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Suy tim

  • 1. CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM (Diagnosis and management of heart failure)
  • 2. Taàm quan troïng cuûa Suy tim  1.000.000 ca môùi/ naêm/ theá giôùi  Taàn suaát suy tim: * Hoa Kyø: 5 trieäu * Chaâu Aâu: 6,5 trieäu * Nhaät: 2,4 trieäu * Vieät Nam: 280 000 – 1,4 trieäu (döïa theo taàn suaát chaâu Aâu)  ¾ b/n suy tim nhaäp vieän töû vong/ 5 naêm* CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
  • 3. Tû lÖ suy tim theo tuæi (Sè liÖu tæng hîp tõ nghiªn cøu trong 34 n¨m t¹i Framingham - Hoa kú) 0.8 2.3 4.9 9.1 0 2 4 6 8 10 50-59t 60-69t 70-79t 80-89t Tuæi (%)
  • 4. Tû lÖ míi m¾c suy tim theo tuæi vµ giíi (Sè liÖu nghiªn cøu trong 34 n¨m T¹i Framingham - Hoa kú) 1 2 3 5 6 9 13 17 28 31 0 5 10 15 20 25 30 35 45-54t 55-64t 65-74t 75-84t 85-94t Tuæi (%o)
  • 6. Nguyeân nhaân Suy tim TL : Cardiovascular Therapeutics. WB. Saunder Co. 2002, p. 294 NGUYEÂN NHAÂN SOÁ BEÄNH NHAÂN (%) TMCB 936 (50.3) Khoâng TMCB 925 (49.7) Nguyeân nhaân tìm thaáy 678 (36.4) Voâ caên 340 (18.2) Van tim 75 (4.0) THA 70 (3.8) Röôïu 34 (1.8) Virus 9 (0.4) Sau sinh 8 (0.4) Beänh amyloide 1 (0.1) Khoâng ñaëc hieäu 141 (7.6) Khoâng thaáy nguyeân nhaân 247 (13.3) CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
  • 7. Xu huíng thay ®æi Nguyªn nh©n g©y suy tim t¹i hoa kú (Nghiªn cøu Framingham n¨m 1950 so víi n¨m 1987)(*) Nguyªn nh©n Sù thay ®æi tû lÖ % m¾c suy tim Nam N÷ - BÖnh §MV + 41 + 25 - TiÓu ®êng + 21 + 24 - THA - 10 - 27 - Dµy TT - 23 - 33 - BÖnh van tim - 45 - 32 (*) Kanel 1994; Br Heart J, suppl;72:3-9.
  • 8. ÑÒNH NGHÓA SUY TIM  “In these hearts…their reserve force is lost, and with it the power of meeting the demands in maintaining the circulation during severe exertion” (by Osler, in 1892)   “A condition in which the heart fails adequately to discharge its contents” (by Lewes, in 1933”  “A state in which the heart fails to maintain an adequate circulation for the needs of the body despite a satisfactory filling pressure: (by Wood, in 1950)  “A pathophysiological state in which an abnormality of cardiac function is responsible for the failure of the heart to pup blood at a rate commensurate with the requirements of the metabolizing tissues” (by Braunwald, in 1986)
  • 9. ÑÒNH NGHÓA SUY TIM “A clinical syndrome caused by an abnormality of the heart and recognized by a characteristic pattern of haemodynamics, renal, neural and hormonal response” (by Poole-Wilson, in 1985)
  • 10. CAÙC CÔ CHEÁ BUØ TRÖØ TRONG SUY TIM 1. HOAÏT HOÙA THAÀN KINH NOÄI TIEÁT (NEUROHORMONAL ACTIVATION) 2. GIAÕN TAÂM THAÁT (VENTRICULAR DILATATION) 3. PHÌ ÑAÏI TAÂM THAÁT (VENTRICULAR HYPERTROPHY)
  • 11. CÔ CHEÁ BUØ TRÖØ TRONG SUY TIM TAÂM THU HOAÏT HOÙA THAÀN KINH GIAO CAÛM TAÊNG CO SÔÏI CÔ PHÌ ÑAÏI TAÂM THAÁT TAÊNG KHOÁI CÔ TIM TAÙI PHAÂN PHOÁI LÖU LÖÔNG TÓNH MAÏCH ÖÙ MUOÁI VAØ NÖÔÙC GIAÕN TAÂM THAÁT TAÊNG CUNG LÖÔÏNG TIM (CO)
  • 12. MOÁI LIEÂN QUAN GIÖÕA AÙP LÖÏC ÑOÅ ÑAÀY THAÁT VAØ CUNG LÖÔÏNG TIM - ÑÖÔØNG CONG STARLING GAÉNG SÖÙC (taêng co boùp giaûm haäu taûi) BÌNH THÖÔØNG GIAÛM CO BOÙP TAÊNG HAÄU TAÛI SUY TIM CUNGLÖÔÏNGTIM (CO)l/min AÙP LÖÏC ÑOÅ ÑAÀY - TIEÀN TAÛI (mmHg) 10 5 10 20 30
  • 13. VOØNG BEÄNH LYÙ TRONG SUY TIM MAÕN TÍNH NHAÙNH XUOÁNG ÑÖÔØNG CONG STARLING NHÒP NHANH KHOÂNG TÖÔNG THÍCH TAÙC DUÏNG ÑOÄC TRÖÏC TIEÁP CUÛA CATECHOLAMINE ÑAÙP ÖÙNG THAÀN KINH NOÄI TIEÀT ÖÙ DÒCH CO THAÉT TÓNH MAÏCH ( TIEÀNTAÛI) CO THAÉT ÑOÄNG MAÏCH ( HAÄU TAÛI) GIAÕN BUOÀNG TIM TAÊNG STRESS THAØNH TIM ROÁI LOAÏN CHÖÙC NAÊNG TAÂM THAÁT
  • 14. VAI TROØ CUØNG TAÙC ÑOÄNG, CUØNG ÑIEÀU HOØA CUÛA HEÄ THOÁNG THAÀN KINH GIAO CAÛM (ADRENERGIC VAØ HEÄ THOÁNG RENIN- ANGIOTENSIN (RAAS) ADRENEGIC Vasoconstriction Volume Overload Direct Cardiotoxicity Increased Heart rate & contractility Increased MVO2 MYOCYTE DAMAGE HYPERTROPHY RENIN-ANGIOTENSIN Increased Wall Stress DECREASED CONTRACTILITY
  • 15. NHÖÕNG ÖÙNG DUÏNG ÑIEÀU TRÒ TÖØ HIEÅU BIEÁT CÔ CHEÁ BEÄNH SINH CUÛA SUY TIM 1. Vai troø thuoác ÖÙc cheá Men Chuyeån. 2. Söï nhìn nhaän laïi vai troø thuoác Öùc cheá thuï theå . Caùc thuoác öùc cheá thuï theå  coù tính giaõn maïch. 3. Caùc thuoác ñoái khaùng endothelin 4. Caùc cô sôû khoa hoïc cho vieäc tìm kieám phöông phaùp ñieàu trò ôû möùc phaân töû : Lieäu phaùp GENE.
  • 16. Tieâu chuaån Framingham giuùp chaån ñoaùn Suy tim TIEÂU CHUAÅN CHÍNH TIEÂU CHUAÅN PHUÏ Khoù thôû kòch phaùt veà ñeâm Phuø chi Giaõn TM Ho veà ñeâm Ran Khoù thôû gaéng söùc Tim lôùn Gan lôùn Phuø phoåi caáp TDMP T3, ngöïa phi Dung tích soáng giaûm Taêng aùp löïc TM khoaûng 1/3 bình thöôøng (> 16 cm H2O) Tim nhanh > 120/ph Coù phaûn hoài gan TM coå Chaån ñoaùn xaùc ñònh : 1 tieâu chuaån chính keøm 2 tieâu chuaån phuï TL : Cardiovascular Therapeutics. WB. Saunder Co. 2002, p. 297
  • 17. Tieâu chuaån Chaâu Aâu chaån ñoaùn Suy tim 1. Coù trieäu chöùng cô naêng suy tim (luùc nghæ hay trong khi gaéng söùc) vaø 2. Chöùng côù khaùch quan cuûa roái loaïn chöùc naêng tim (luùc nghæ) vaø 3. Ñaùp öùng vôùi ñieàu trò suy tim (trong tröôøng hôïp coù nghi ngôø chaån ñoaùn) TL: Beänh hoïc Tim maïch, NXB Y hoïc 2002, p 223 CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
  • 18. Bnp giuùp phaân bieät khoù thôû do Suy tim vaø khoù thôû khoâng do tim TL: Shapiro BP et al. Mayo Clin Proc 2003; 78: 481 - 486 CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
  • 19. Noàng ñoä BNP trong suy tim TL : Morrison LK et al. J Am Coll Cardiol 2002 ; 39 : 202 CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
  • 20. Caùc ngyeân nhaân laøm naëng suy tim thöôøng gaëp (1)  Khoâng do tim : - Khoâng tuaân thuû ñieàu trò (muoái, nöôùc, thuoác) - Uoáng theâm thuoác khaùc : thuoác choáng loaïn nhòp ngoaïi tröø amiodarone, cheïn beâta, NSAIDs, verapamil, diltiazem - Nhieãm truøng - Roái loaïn chöùc naêng thaän (lôïi tieåu quaù nhieàu) - Thuyeân taéc phoåi - THA - Roái loaïn chöùc naêng tuyeán giaùp - Thieáu maùu CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
  • 21.  Do tim : - Rung nhó - Loaïn nhòp thaát hoaëc loaïn nhòp treân thaát khaùc - Tim chaäm - Thieáu maùu cuïc boä cô tim (thöôøng khoâng trieäu chöùng cô naêng), bao goàm NMCT TL: Cleland J et al. Guidelines for the diagnosis and treatment of heart failure : executive summary (update 2005). Eur. Heart J. 2005 ; 26 : 1115-1140 Caùc ngyeân nhaân laøm naëng suy tim thöôøng gaëp (2) CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
  • 22. Chu tr×nh dÉn ®Õn suy tim BÖnh §MV ThiÕu m¸u c¬ tim HuyÕt khèi §MV NMCT Rèi lo¹n nhÞp tim ho¹i tö vïng c¬ tim Suy tim YÕu tè nguy c¬ (THA, RL lipid, ®t®... V÷a x¬ §M Dµy thÊt tr¸i T¸i cÊu tróc c¬ tim Gi· n thÊt tr¸i Tö vong
  • 23. Caùc giai ñoaïn Suy tim theo khuyeán caùo cuûa AHA/ACC (1) Giai ñoaïn Moâ taû Thí duï A Nguy cô cao suy tim vì coù caùc THA, BÑMV, ÑTÑ, tieàn söû yeáu toá phoái hôïp suy tim ñieàu trò thuoác ñoäc cho tim, Khoâng beänh van tim, cô tim, uoáng nhieàu röôïu, tieàn söû maøng ngoaøi tim thaáp tim, beänh söû gia ñình bò beänh cô tim. B Coù beänh tim thöïc theå nhöng Sôïi hoùa hoaëc daày thaát traùi. chöa coù trieäu chöùng suy tim Daõn thaát traùi hoaëc giaûm co cô. Beänh van tim khoâng trieäu chöùng cô naêng; tieàn söû NMCT TL: Hunt S et al. Guidelines for the evaluation and management of chronic heart failure in the adult. J Am Coll Cardiol 2001; 38:2101-2113 CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
  • 24. Caùc giai ñoaïn Suy tim theo khuyeán caùo cuûa AHA/ACC (2) Giai ñoaïn Moâ taû Thí duï C Coù beänh tim thöïc theå. Tieàn söû Meät hoaëc khoù thôû do roái hoaëc hieän taïi coù suy tim loaïn taâm thu thaát traùi. Hieän taïi khoâng trieäu chöùng cô naêng do ñang ñieàu trò noäi suy tim. D Coù beänh tim thöïc theå naëng Thöôøng xuyeân nhaäp keøm suy tim luùc nghæ maëc duø vieän.Caàn truyeàn thuoác co ñieàu trò noäi khoa toái ña; caàn can cô tim. Caàn maùy trôï tim. thieäp ñaëc bieät. Chôø gheùp tim. TL: Hunt S et al. Guidelines for the evaluation and management of chronic heart failure in the adult. J Am Coll Cardiol 2001; 38:2101-2113 CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
  • 25. CHIEÁN LÖÔÏC ÑIEÀU TRÒ SUY TIM GIAI ÑOAÏN NAÊM PHÖÔNG PHAÙP ÑIEÀU TRÒ I 1948 - 1968 DIGITALIS, Lôïi tieåu II 1968 - 1978 Thuoác giaõn maïch III 1978 - 1998 Thuoác co sôïi cô khoâng phaûi Digitalis IV 1988 - 1998 Thuoác öùc cheá men chuyeån Chieán löôïc ñieàu trò phoøng ngöøa (preventive therapies),Chen thu the Beta V ? Ñieàu chænh caùc baát thöôøng cô tim ôû möùc teá baøo hoïc.
  • 26. Muïc tieâu ñieàu trò  Giaûm trieäu chöùng cô naêng vaø caûi thieän khaû naêng vaän ñoäng.  Ngaên caûn tieán trieån (giaûm taùi caáu truùc- remodeling)  Keùo daøi ñôøi soáng CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
  • 27. Caùc phöông thöùc ñieàu trò suy tim Xöû trí khoâng thuoác Bieän phaùp chung Vaän ñoäng vaø taäp luyeän Ñieàu trò baèng thuoác UCMC Loi tieåu Cheïn beâta Doái khaùng aldosterone Cheïn thuï theå AGII Digitalis Dan mach Taêng co cô tim Khaùng ñoâng Thuoác choáng loaïn nhòp ; oxy Phaãu thuaät vaø duïng cuï Taùi löu thoâng ÑMV (nong, phaãu thuaät bac cau) Phaãu thuaät (thay /söûa van timù) Taïo nhòp 2 buoàng thaát Chuyeån nhòp phaù rung caáy ñöôïc (ICD) Duïng cuï trôï thaát ; tim nhaân taïo ; gheùp tim TL Cleland J et al. Guidelines for the diagnosis and treatment of heart failure : executive summary (update 2005). Eur. Heart J. 2005 ; 26 : 1115-1140
  • 28. Baäc thang ñieàu trò Suy tim taâm thu Maùy trôï thaát traùi Gheùp tim Taïo ñoàng boä thaát Taêng co cô tim Nitrates, hydralazine SpironolactoneAs substitute for K+ Digoxin Cheïn beâta Phoái hôïpLôïi tieåu UCMC Haïn cheá Natri. Traùnh röôïu. Khuyeán khích laøm vieäc.Theo doõi caân naëng NYHA I Khoâng TC/CN NYHA II TC/CN nheï NYHA III TC/CN vöøa phaûi NYHA IV TC/CN naëng TL: Massie BM. Management of the patient with chronic heart failure. In Cardiology, Mosby 2nd ed 2004, p 880 2 1
  • 29. Caùc bieän phaùp khoâng thuoác trong ñieàu trò Suy tim maïn Tieáp caän Khuyeán caùo Dinh döôõng 2,5g natri/ngaøy (2g neáu suy tim naëng) Haïn cheá nöôùc, ñaëc bieät ôû b/n haï natri maùu Aên ít môõ, ít caloric (khi caàn) Khoâng uoáng röôïu Hoaït ñoäng vaø Tieáp tuïc coâng vieäc thöôøng ngaøy. taäp theå löïc Taäp theå löïc, phuïc hoài tim. Höôùng daãn b/n vaø Caét nghóa veà suy tim vaø trieäu chöùng. gia ñình Lyù do haïn cheá muoái. Caùc thuoác vaø söï tuaân thuû Caân moãi ngaøy Nhaän bieát caùc daáu suy tim naëng hôn. TL: Massie BM. Management of the patient with chronic heart failure. In Cardiology, Mosby 2nd ed 2004, p 880 CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
  • 30. Lôïi tieåu trong ñieàu trò Suy tim  Vai troø khoâng thay theá ñöôïc cuûa lôïi tieåu trong ñieàu trò suy tim sung huyeát vaø phuø phoåi caáp  Nguy cô töû vong do loaïn nhòp khi duøng lôïi tieåu maát Kali laâu daøi  Phoái hôïp Spironolactone lieàu thaáp (25mg/ngaøy) vôùi ñieàu trò chuaån suy tim sung huyeát giuùp giaûm töû vong CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
  • 31. Vò trí taùc duïng cuûa caùc lôïi tieåu TL : Bristou MR et al. In Braunwald’s Heart Disease. WB Saunders 2005 7th ed, p. 573 CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
  • 32. Aldosterone/suy tim TL : Opie LH. Drugs for the Heart, 2005, 6th ed, p. 14 CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
  • 33. Caùc thuoác ñoái khaùng Aldosterone trong ñieàu trò Suy tim maïn Thuoác Lieàu khôûi ñaàu Lieàu ñích Keát quaû töø nghieân cöùu lôùn thöôøng duøng thöôøng duøng Spironolactone 25mg q24h 25mg q24h RALES *:  soáng coøn,  nhaäp vieän do suy tim Eplerenone 50mg q24h 50-100mg EPHESUS **:  17% töû q24h vong b/n sau NMCT coù EF < 40% vaø suy tim. TL: * Pitt B et al.N Engl J Med 1999; 341: 709- 717 CHAÅN ÑOAÙN VAØ ÑIEÀU TRÒ SUY TIM DO BEÄNH ÑOÄNG MAÏCH VAØNH
  • 34. Söû duïng thuoác ñoái khaùng aldosterone/suy tim  Caân nhaéc söû duïng khi b/n coøn NYHA III-IV maëc duø UCMC vaø lôïi tieåu  Kali maùu < 5mmol/L vaø creatinine maùu < 250micromol/L  Theâm lieàu thaáp : spironolactone 12,5-25mg/ng hoaëc eplerenone 25mg/ngaøy  Kieåm tra K+ maùu vaø creatinine/sau 4-6 ngaøy  K+ 5-5,5mmol/L : giaûm 50% lieàu ñoái khaùng aldosterone  Sau 1 thaùng neáu coøn trieäu chöùng cô naêng vaø kali maùu bình thöôøng : taêng spironolactone 50mg/ngaøy, kieåm tra K+ sau 1 tuaàn TL : Cleland J et al. Guidelines for the diagnosis and treatment of heart failure : executive summary (update 2005). Eur. Heart J. 2005 ; 26 : 1115-1140 CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
  • 35. Hieäu quaû cuûa digoxin trong ñieàu trò Suy tim maïn TL: Massie BM. Management of the patient with chronic heart failure. In Cardiology, Mosby 2nd ed 2004, p 890
  • 36. Neân söû duïng Digoxin lieàu thaáp thay vì lieàu cao All-cause mortality Hospitalization (%) (%) Placebo (n = 2611) 36.2 67.8 Digoxin (n = 1171) 36.6 66.8 0.5 – 0.8 ng/ml 29.9 61.9 0.9 – 1.1 ng/ml 38.8 72.4 1.2 ng/ml 48.0 70.4 TL: Erdmann E. Eur. Heart J 2003; 5 (suppl I): I 64 – I 68
  • 37. Hai nhieäm vuï cuûa UCMC : phoøng ngöøa vaø ñieàu trò beänh tim maïch TL : Opie LH. Drugs for the Heart, 2005, 6th ed, p 105
  • 38. Lieàu löôïng UCMC coù hieäu quaû trong ñieàu trò suy tim hoaëc roái loaïn chöùc naêng taâm thu TT (caùc nghieân cöùu lôùn, coù kieåm soaùt) TL : Cleland J et al. Guidelines for the diagnosis and treatment of heart failure : executive summary (update 2005). Eur. Heart J. 2005 ; 26 : 1115-1140 Nghieân cöùu veà töû vong Thuoác Lieàu muïc tieâu Lieàu trung bình/ ngaøy Nghieân cöùu treân suy tim CONSENSUS Trial Study Enalapril 20mg b.i.d. 18.4mg Group, 1987 V-HeFT II, 1991 Enalapril 10mg b.i.d. 15.0mg The SOLVD Investigators Enalapril 10mg b.i.d. 16.6mg ATLAS, 1999 Lisinopril High dose : 32.5-35 mg daily Low dose : 2.5-5mg daily N/c treân RLCN thaát traùi keøm hay khoâng keøm suy tim/NMCT SAVE, 1992 Captopril 50mg t.i.d. 127mg AIRE, 1993 Ramipril 5mg b.i.d. (not available) TRACE, 1995 Trandolapril 4mg daily (not available)
  • 39.  C¸c con ®êng t¹o thµnh Angiotensin II vµ  c¬ chÕ t¸c ®éng trªn nh÷ng thô thÓ cña nã
  • 40.  Thuoác öùc cheá Angiotensin II choïn loïc raát cao tröïc tieáp treân thuï theå AT1 ANGIOTENSIN II AT1 AT2 - Taêng sinh - Co maïch - Taêng tröông löïc giao caûm - Choáng taêng sinh - Daõn maïch - Taêng löu löôïng maïch vaønh Taùc duïng coù haïi Taùc duïng coù lôïi ARBs Öùc cheá choïn loïc treân thuï theå AT1 Thuoác öùc cheá thuï theå Angiotensin II: choïn loïc treân thuï theå AT1
  • 41. Caùc thuoác cheïn thuï theå Angiotension II/ Suy tim Thuoác Lieàu löôïng (mg/ngaøy) Ñaõ coù nghieân cöùu chöùng minh hieäu quaû/taät beänh, töû vong Candesartan cilexetil 4-32 Valsartan 80-320 Coù theå duøng Eprosartan 400-300 Losartan 50-100 Irbesartan 150-300 Telmisartan 40-80 TL : Cleland J et al. Guidelines for the diagnosis and treatment of heart failure : executive summary (update 2005). Eur. Heart J. 2005 ; 26 : 1115-1140
  • 42. Taùc duïng coù haïi cuûa angiotensin II leân heä tim maïch TL : Opie LH. Drugs for the Heart, 2005, 6th ed, p. 136 CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
  • 43. C¬ chÕ ho¹t ®éng thÇn kinh giao c¶m trong suy tim T¨ng tr¬ng lùc giao c¶m TW T¨ng ho¹t ho¸ giao c¶m Tim T¨ng tr¬ng lùc giao c¶m ë ThËn vµ m¹ch m¸u Thô thÓ 1 Thô thÓ 2 Thô thÓ 1 Ph× ®¹i vµ huû ho¹i TB c¬ tim Gi·n c¬ tim, thiÕu m¸u côc bé c¬ tim, rèi lo¹n nhÞp tim. Co m¹ch T¨ng t¸i hÊp thu níc
  • 44. C¬ chÕ t¸c ®éng cña thuèc chÑn giao c¶m trong suy tim Ho¹t ho¸ hÖ giao c¶m Tæn thư¬ng c¬ tim Thô thÓ 1 Thô thÓ 2 Thô thÓ 1 TiÕn triÓn suy tim Metoprolol Bisoprolol Bucidolol Carvedilol
  • 45. Phöông thöùc söû duïng cheïn beâta/ ñieàu trò suy tim Cheïn beâta Lieàu Taêng lieàu Lieàu muïc tieâu Thôøi gian khôûi ñaàu (mg/ngaøy) (mg/ngaøy) chænh lieàu (mg) Bisoprolol 1.25 2.5,3.75,5,7.5,10 10 tuaàn leã/thaùng Metoprolol 12.5/25 25,50,100,200 200 tuaàn leã/thaùng succinate CR Cavedilol 3.125 6.25,12.5,25,50 50 tuaàn leã/thaùng Nebivolol 1.25 2.5,5,10 10 tuaàn leã/thaùng TL Cleland J et al. Guidelines for the diagnosis and treatment of heart failure : executive summary (update 2005). Eur. Heart J. 2005 ; 26 : 1115-1140
  • 46. LiÒu ®Çu tiªn vµ duy tr× cña carvedilol 3,125mg x 2 6,5 mg x 2 12,5mg x 2 25mg x 2 6,5 mg x 2
  • 47. Ñieàu trò baèng duïng cuï (Device Therapy)  Maùy chuyeån nhòp phaù rung caáy ñöôïc (ICDs : Implantable cardioverter defibrillators)  Taïo nhòp 2 buoàng thaát hay taùi ñoàng boä tim (Biventricular Pacing or Cardiac Resynchrorrization Therapy)  Duïng cuï trôï taâm thaát (Ventricular Assist Devices) CAÄP NHAÄT VEÀ ÑIEÀU TRÒ SUY TIM 12/05
  • 48. Ñieàu trò baèng taùi ñoàng boä tim
  • 49. Chæ ñònh cuûa ICDs  Roái loaïn chöùc naêng thaát traùi/soáng soùt sau ñoät töû  Nhòp nhanh thaát keùo daøi coù trieäu chöùng cô naêng  Nhòp nhanh thaát khoâng keùo daøi, khoâng trieäu chöùng nhöng khôûi kích ñöôïc  Beänh cô tim TMCB coù PXTM<30% TL : Bristow MR, Lowes BD. In Braunwald’s Heart Disease 2005, WB Saunders 7th ed, p.610
  • 50. Nghieân cöùu MADIT II : ICDs caûi thieän soáng coøn, nhaát laø ôû b/n QRS>0,12 giaây TL : Moss AJ et al. N. Engl J Med 2002 ; 346 : 877
  • 51. TL: Young JB. Surgery, Assist devices and cardiac transplantation for heart failure. In Cardiology, Mosby 2nd ed 2004, p 925 Duïng cuï trôï giuùp tuaàn hoaøn cô hoïc: Novacor & Thoratec
  • 52. Duïng cuï trôï giuùp tuaàn hoaøn cô hoïc: Novacor & Debakey - Nasa TL: Young JB. Surgery, Assist devices and cardiac transplantation for heart failure. In Cardiology, Mosby 2nd ed 2004, p 926
  • 53. Ñieàu trò phaãu thuaät  Gheùp tim (cardiac transplantation)  Phaãu thuaät baéc caàu ÑMV (CABG)  Taùi taïo van 2 laù/roái loaïn chöùc naêng thaát traùi
  • 54. Phaãu thuaät baéc caàu ÑMV TL : Braunwald E. Heart Disease, WB Saunders 6th ed 2001, p. 1304
  • 55. GHEÙP TIM: gheùp tröïc tieáp (orthotopic) vaø gheùp keøm (heterotopic) - Gheùp keøm: raát ít söû duïng
  • 56. Baäc thang ñieàu trò Suy tim taâm thu Maùy trôï thaát traùi Gheùp tim Taïo ñoàng boä thaát Taêng co cô tim Nitrates, hydralazine SpironolactoneAs substitute for K+ Digoxin Cheïn beâta Phoái hôïpLôïi tieåu UCMC Haïn cheá Natri. Traùnh röôïu. Khuyeán khích laøm vieäc.Theo doõi caân naëng NYHA I Khoâng NYHA II TC/CN nheï NYHA III TC/CN vöøa phaûi NYHA IV TL: Massie BM. Management of the patient with chronic heart failure. In Cardiology, Mosby 2nd ed 2004, p 880 2 1
  • 57. Keát luaän  Suy tim : coøn laø vaán ñeà lôùn trong töû vong tim maïch  Cheïn beâta, UCMC, cheïn thuï theå AGII, ñoái khaùng aldosterone : thieát yeáu trong ñieàu trò suy tim