Acute myocardial infarct extension into a previously preserved subendocardial region at risk in dogs and patients.

Abstract:

:In this study we quantitated the region of preserved myocardium between a subendocardial myocardial infarct (SEMI) and the endocardium in dogs and determined whether this preserved zone was within the region at risk and whether infarct extension could occur in this region. We also evaluated whether a similar subendocardial region exists in patients with SEMI. A 40-minute temporary occlusion of the left anterior descending coronary artery (LAD) in eight dogs resulted in a 35 +/- 5% transmural infarct with 8 +/- 1% subendocardial preservation as assessed by point-counting of the histologic specimens. In vivo perfusion of coronary vessels with Microfil showed that this preserved subendocardial zone was within the region at risk. The preserved subendocardial zone had significantly fewer cell layers in the dogs ventilated with room air than in dogs ventilated with 100% oxygen (8 +/- 4 vs 19 +/- 4, p less than 0.001), which suggests that diffusion from the ventricular cavity was the mechanism of cell preservation. In contrast, the inspired oxygen concentration did not influence the size of the SEMI. Reocclusion of the LAD for 24 hours in an additional eight dogs, 1 week after a SEMI had been created by a 40-minute temporary occlusion, resulted in both subendocardial and subepicardial extension involving 5 +/- % and 29 +/- 9%, respectively, of the transmural myocardium at the infarct center. Subendocardial infarct extension of a similar dimension to that in dogs ventilated on 100% oxygen was observed in postmortem material from eight patients with infarct extension. The preserved layers of subendocardium presumably receive sufficient nutrients from the ventricular cavity to maintain the viability of this region during temporary, but not permanent, reduction of blood supply from the coronary arteries.

journal_name

Circulation

journal_title

Circulation

authors

Forman R,Cho S,Factor SM,Kirk ES

doi

10.1161/01.cir.67.1.117

subject

Has Abstract

pub_date

1983-01-01 00:00:00

pages

117-24

issue

1

eissn

0009-7322

issn

1524-4539

journal_volume

67

pub_type

杂志文章
  • Myocarditis in beta-thalassemia major. A cause of heart failure.

    abstract:BACKGROUND:Although acute pericarditis is a common complication of beta-thalassemia major, the prevalence and consequences of myocarditis in this disease have not been investigated. METHODS AND RESULTS:A prospective 5-year follow-up study was carried out in all patients with beta-thalassemia major in whom the diagnosi...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.91.1.66

    authors: Kremastinos DT,Tiniakos G,Theodorakis GN,Katritsis DG,Toutouzas PK

    更新日期:1995-01-01 00:00:00

  • Influence of angiotensin-converting enzyme and angiotensin II type 1 receptor gene polymorphisms on aortic stiffness in normotensive and hypertensive patients.

    abstract:BACKGROUND:Clinical and experimental studies have demonstrated a major role of the renin-angiotensin system in the functional and structural changes of the large arteries in hypertension. Because genetic studies may help us to understand the mechanisms underlying the involvement of this system in arterial regulation, t...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.94.4.698

    authors: Benetos A,Gautier S,Ricard S,Topouchian J,Asmar R,Poirier O,Larosa E,Guize L,Safar M,Soubrier F,Cambien F

    更新日期:1996-08-15 00:00:00

  • Concealed intraventricular conduction in the His bundle electrogram.

    abstract::Multiple areas of concealed intraventricular conduction are deduced on the basis of aftereffects observed in His bundle recordings. Electrocardiograms and His bundle recordings are presented from two patients with unstable bilateral bundle branch block, the instability of which depended on the interval at which ventri...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.53.5.776

    authors: Cohen HC,D'Cruz I,Pick A

    更新日期:1976-05-01 00:00:00

  • Inhibition of inositol(1,4,5)Trisphosphate generation by endothelin-1 during postischemic reperfusion: A novel antiarrhythmic mechanism.

    abstract:BACKGROUND:Reperfusion of ischemic rat hearts in the presence of thrombin or norepinephrine but not endothelin-1 causes the generation of inositol 1,4,5-trisphosphate (Ins 1,4,5P3) and arrhythmias. The present study investigates the effect of endothelin-1 on these responses. METHODS AND RESULTS:Ins 1,4,5P3 generation ...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.99.6.823

    authors: Woodcock EA,Reyes N,Jacobsen AN,Du XJ

    更新日期:1999-02-16 00:00:00

  • Dissecting aneurysm of aorta complicating aortic valvular stenosis.

    abstract::Six cases of classical dissecting aneurysm of the aorta complicating aortic valvular disease in which aortic stenosis was dominant are described. In three of the cases the aortic complication occurred after the natural aortic valve had been replaced by a prosthetic valve. The longest postoperative period was four mont...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.53.1.169

    authors: Fukuda T,Tadavarthy SM,Edwards JE

    更新日期:1976-01-01 00:00:00

  • Human C-reactive protein does not promote atherosclerosis in transgenic rabbits.

    abstract:BACKGROUND:Although there is a statistically significant association between modestly raised baseline plasma C-reactive protein (CRP) values and future cardiovascular events, the debate is still unsettled in regard to whether CRP plays a causal role in the pathogenesis of atherosclerosis. METHODS AND RESULTS:We genera...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/CIRCULATIONAHA.109.872796

    authors: Koike T,Kitajima S,Yu Y,Nishijima K,Zhang J,Ozaki Y,Morimoto M,Watanabe T,Bhakdi S,Asada Y,Chen YE,Fan J

    更新日期:2009-11-24 00:00:00

  • Endovascular therapies for peripheral arterial disease: an evidence-based review.

    abstract::Peripheral arterial disease is one manifestation of systemic atherosclerosis. The prevalence of peripheral arterial disease increases with the age of the population. It is important to remember the significant association of coincident coronary artery disease, which is the major cause of mortality in these patients. R...

    journal_title:Circulation

    pub_type: 杂志文章,评审

    doi:10.1161/CIRCULATIONAHA.106.621391

    authors: White CJ,Gray WA

    更新日期:2007-11-06 00:00:00

  • Efficacy of Long-Term β-Blocker Therapy for Secondary Prevention of Long-Term Outcomes After Coronary Artery Bypass Grafting Surgery.

    abstract:BACKGROUND:Conflicting results from recent observational studies have raised questions concerning the benefit of β-blockers for patients undergoing coronary artery bypass grafting (CABG). Furthermore, the efficacy of long-term β-blocker therapy in CABG patients after hospital discharge is uncertain. METHODS AND RESULT...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/CIRCULATIONAHA.114.014209

    authors: Zhang H,Yuan X,Zhang H,Chen S,Zhao Y,Hua K,Rao C,Wang W,Sun H,Hu S,Zheng Z

    更新日期:2015-06-23 00:00:00

  • Bypass surgery with the internal mammary artery graft: 15 year follow-up.

    abstract::We performed a 15 year follow-up of 748 patients undergoing bypass surgery, comparing 532 patients with one or two internal mammary artery grafts with or without additional saphenous vein grafts to 216 patients with saphenous vein grafts alone. During the 15 years of follow-up the 532 patients with at least one intern...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:

    authors: Cameron A,Kemp HG Jr,Green GE

    更新日期:1986-11-01 00:00:00

  • Patient selection and current practice strategy for off-pump coronary artery bypass surgery.

    abstract:OBJECTIVE:Previous studies comparing off-pump coronary artery bypass surgery (OPCABG) to conventional techniques utilizing cardiopulmonary bypass (CABG-CPB) have failed to provide patient selection guidelines. We sought to determine guidelines, attempting to rectify the limitations of previous studies. METHODS AND RES...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.0000089187.51855.77

    authors: Magee MJ,Coombs LP,Peterson ED,Mack MJ

    更新日期:2003-09-09 00:00:00

  • Myocardial injury after noncardiac surgery and its association with short-term mortality.

    abstract:BACKGROUND:To identify patients at risk for postoperative myocardial injury and death, measuring cardiac troponin routinely after noncardiac surgery has been suggested. Such monitoring was implemented in our hospital. The aim of this study was to determine the predictive value of postoperative myocardial injury, as mea...

    journal_title:Circulation

    pub_type: 临床试验,杂志文章

    doi:10.1161/CIRCULATIONAHA.113.002128

    authors: van Waes JA,Nathoe HM,de Graaff JC,Kemperman H,de Borst GJ,Peelen LM,van Klei WA,Cardiac Health After Surgery (CHASE) Investigators.

    更新日期:2013-06-11 00:00:00

  • Myocardial protective effects of adenosine. Infarct size reduction with pretreatment and continued receptor stimulation during ischemia.

    abstract:BACKGROUND:We hypothesized that 1) endogenous adenosine released during ischemia conferred an inherent cardioprotection, and 2) a pretreatment dose of adenosine before ischemia would provide additional protection independent of hemodynamic effects. METHODS AND RESULTS:Thirty-six anesthetized New Zealand White rabbits ...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.86.3.986

    authors: Toombs CF,McGee S,Johnston WE,Vinten-Johansen J

    更新日期:1992-09-01 00:00:00

  • Marfan syndrome. Long-term survival and complications after aortic aneurysm repair.

    abstract:BACKGROUND:Development of surgical therapy for aortic aneurysms and dissections has led to treatment of the life-threatening cardiovascular complications associated with Marfan syndrome. The present study determines the effect of surgical therapy on the life expectancy of patients with Marfan syndrome and the clinical ...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.91.3.728

    authors: Finkbohner R,Johnston D,Crawford ES,Coselli J,Milewicz DM

    更新日期:1995-02-01 00:00:00

  • Deficiency of Cardiac Natriuretic Peptide Signaling Promotes Peripartum Cardiomyopathy-Like Remodeling in the Mouse Heart.

    abstract:BACKGROUND:The maternal circulatory system and hormone balance both change dynamically during pregnancy, delivery, and the postpartum period. Although atrial natriuretic peptides and brain natriuretic peptides produced in the heart control circulatory homeostasis through their common receptor, NPR1, the physiologic and...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/CIRCULATIONAHA.119.039761

    authors: Otani K,Tokudome T,Kamiya CA,Mao Y,Nishimura H,Hasegawa T,Arai Y,Kaneko M,Shioi G,Ishida J,Fukamizu A,Osaki T,Nagai-Okatani C,Minamino N,Ensho T,Hino J,Murata S,Takegami M,Nishimura K,Kishimoto I,Miyazato M,Hara

    更新日期:2020-02-18 00:00:00

  • Impact of pretreatment with clopidogrel on initial patency and outcome in patients treated with primary percutaneous coronary intervention for ST-segment elevation myocardial infarction: a systematic review.

    abstract:BACKGROUND:The main goal of the initial treatment of ST-segment elevation myocardial infarction is prompt reperfusion of the infarct-related artery. The value of pretreatment with clopidogrel before primary percutaneous coronary intervention is currently unclear. METHODS AND RESULTS:Studies were retrieved through MEDL...

    journal_title:Circulation

    pub_type: 杂志文章,评审

    doi:10.1161/CIRCULATIONAHA.107.749531

    authors: Vlaar PJ,Svilaas T,Damman K,de Smet BJ,Tijssen JG,Hillege HL,Zijlstra F

    更新日期:2008-10-28 00:00:00

  • A prospective study of nutritional factors and hypertension among US men.

    abstract:BACKGROUND:An effect of diet in determining blood pressure is suggested by epidemiological studies, but the role of specific nutrients is still unsettled. METHODS AND RESULTS:The relation of various nutritional factors with hypertension was examined prospectively among 30,681 predominantly white US male health profess...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.86.5.1475

    authors: Ascherio A,Rimm EB,Giovannucci EL,Colditz GA,Rosner B,Willett WC,Sacks F,Stampfer MJ

    更新日期:1992-11-01 00:00:00

  • Cerebral protection with filter devices during carotid artery stenting.

    abstract:BACKGROUND:Distal embolization of debris during percutaneous carotid artery stenting may result in neurological deficit. Filter devices for cerebral protection potentially reduce the risk of embolization. METHODS AND RESULTS:Elective carotid stent implantation using 3 different types of distal filter protection device...

    journal_title:Circulation

    pub_type: 临床试验,杂志文章,多中心研究

    doi:10.1161/hc2601.092495

    authors: Reimers B,Corvaja N,Moshiri S,Saccà S,Albiero R,Di Mario C,Pascotto P,Colombo A

    更新日期:2001-07-03 00:00:00

  • Role of monocyte chemoattractant protein-1 in cardiovascular remodeling induced by chronic blockade of nitric oxide synthesis.

    abstract:BACKGROUND:Chronic inhibition of endothelial nitric oxide (NO) synthesis by the administration of N:(omega)-nitro-L-arginine methyl ester (L-NAME) to rats induces early vascular inflammatory changes (monocyte infiltration into coronary vessels and monocyte chemoattractant protein-1 [MCP-1] expression) as well as subseq...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.102.18.2243

    authors: Koyanagi M,Egashira K,Kitamoto S,Ni W,Shimokawa H,Takeya M,Yoshimura T,Takeshita A

    更新日期:2000-10-31 00:00:00

  • Physical activity and hemostatic and inflammatory variables in elderly men.

    abstract:BACKGROUND:Physical activity is associated with lower risk of cardiovascular disease, but the mechanisms are uncertain. Hemostatic and inflammatory markers have been linked with risk of cardiovascular disease. We therefore examined the relationship between physical activity and hemostatic and inflammatory variables. M...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/hc1502.107117

    authors: Wannamethee SG,Lowe GD,Whincup PH,Rumley A,Walker M,Lennon L

    更新日期:2002-04-16 00:00:00

  • Loss of perivascular adipose tissue on peroxisome proliferator-activated receptor-γ deletion in smooth muscle cells impairs intravascular thermoregulation and enhances atherosclerosis.

    abstract:BACKGROUND:Perivascular adipose tissue (PVAT) surrounds most vessels and shares common features with brown adipose tissue (BAT). Although adaptive thermogenesis in BAT increases energy expenditure and is beneficial for metabolic diseases, little is known about the role of PVAT in vascular diseases such as atheroscleros...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/CIRCULATIONAHA.112.104489

    authors: Chang L,Villacorta L,Li R,Hamblin M,Xu W,Dou C,Zhang J,Wu J,Zeng R,Chen YE

    更新日期:2012-08-28 00:00:00

  • Outcome after the single-stage, nonfenestrated Fontan procedure.

    abstract:BACKGROUND:A completed Fontan circulation is the goal in the management of patients with single-ventricle physiology. To achieve this end, a two-stage rather than a single-stage approach is carried out routinely at many centers. Some groups have advocated baffle fenestration for virtually all patients to minimize post-...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:

    authors: Hsu DT,Quaegebeur JM,Ing FF,Selber EJ,Lamour JM,Gersony WM

    更新日期:1997-11-04 00:00:00

  • Intensive blood pressure control reduces the risk of cardiovascular events in patients with peripheral arterial disease and type 2 diabetes.

    abstract:BACKGROUND:Peripheral arterial disease (PAD) and diabetes are both associated with a high risk of ischemic events, but the role of intensive blood pressure control in PAD has not been established. METHODS AND RESULTS:The Appropriate Blood Pressure Control in Diabetes study followed 950 subjects with type 2 diabetes fo...

    journal_title:Circulation

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1161/01.cir.0000049640.46039.52

    authors: Mehler PS,Coll JR,Estacio R,Esler A,Schrier RW,Hiatt WR

    更新日期:2003-02-11 00:00:00

  • The natural history of regional dysfunction in a canine preparation of chronic infarction.

    abstract::We used a canine preparation of experimental infarction to study the natural course of echocardiographically defined regional wall motion abnormalities in the 6 weeks after acute coronary ligation. Eight dogs underwent serial short-axis echocardiographic evaluation and microsphere blood flow determinations at control,...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.71.2.394

    authors: Gibbons EF,Hogan RD,Franklin TD,Nolting M,Weyman AE

    更新日期:1985-02-01 00:00:00

  • Intracoronary beta-irradiation with a liquid (188)re-filled balloon: six-month results from a clinical safety and feasibility study.

    abstract:BACKGROUND:Coronary irradiation is a new concept to reduce restenosis. We evaluated the feasibility and safety of intracoronary irradiation with a balloon catheter filled with (188)Re, a liquid, high-energy beta-emitter. METHODS AND RESULTS:Irradiation with 15 Gy at 0.5-mm tissue depth was performed in 28 lesions afte...

    journal_title:Circulation

    pub_type: 临床试验,杂志文章

    doi:10.1161/01.cir.101.20.2355

    authors: Höher M,Wöhrle J,Wohlfrom M,Hanke H,Voisard R,Osterhues HH,Kochs M,Reske SN,Hombach V,Kotzerke J

    更新日期:2000-05-23 00:00:00

  • Rigid ring fixation of the mitral annulus does not impair left ventricular systolic function in the normal canine heart.

    abstract:BACKGROUND:Previous studies suggest that rigid fixation of the mitral annulus with an annuloplasty ring may impair left ventricular (LV) systolic performance. We used load-insensitive indexes of global and regional LV contractile mechanics to test the hypothesis that rigid fixation of the mitral annulus alters LV systo...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:

    authors: Rayhill SC,Castro LJ,Nizyporuk MA,Ingels NB Jr,Daughters GT,Derby GC,Tye TL,Bolger AF,Miller DC

    更新日期:1992-11-01 00:00:00

  • Efficacy of left cardiac sympathectomy in the treatment of patients with the long QT syndrome.

    abstract::Ten patients with the long QT syndrome and recurrent syncope and/or cardiac arrest caused by ventricular arrhythmias underwent left stellate (one patient) or left cervicothoracic sympathectomy (nine patients) after failing to respond to high-dose beta-blocker therapy. The syndrome was familial in four and idiopathic i...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.70.6.1018

    authors: Bhandari AK,Scheinman MM,Morady F,Svinarich J,Mason J,Winkle R

    更新日期:1984-12-01 00:00:00

  • Randomized COMparison of platelet inhibition with abciximab, tiRofiban and eptifibatide during percutaneous coronary intervention in acute coronary syndromes: the COMPARE trial. Comparison Of Measurements of Platelet aggregation with Aggrastat, Reopro, an

    abstract:BACKGROUND:The relative anti-aggregatory effects of currently prescribed platelet glycoprotein IIb/IIIa receptor antagonists during and after percutaneous coronary intervention for acute coronary syndromes have not been established. METHODS AND RESULTS:We randomized 70 acute coronary syndrome patients undergoing percu...

    journal_title:Circulation

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1161/01.cir.0000029744.01096.1f

    authors: Batchelor WB,Tolleson TR,Huang Y,Larsen RL,Mantell RM,Dillard P,Davidian M,Zhang D,Cantor WJ,Sketch MH Jr,Ohman EM,Zidar JP,Gretler D,DiBattiste PM,Tcheng JE,Califf RM,Harrington RA

    更新日期:2002-09-17 00:00:00

  • Influence of nitric oxide synthase and adrenergic inhibition on adenosine-induced myocardial hyperemia.

    abstract:BACKGROUND:Myocardial perfusion during adenosine-induced hyperemia is used both in clinical diagnosis of coronary heart disease and for scientific investigations of the myocardial microcirculation. The objective of this study was to clarify whether adenosine-induced hyperemia is dependent on endothelial NO production o...

    journal_title:Circulation

    pub_type: 临床试验,杂志文章

    doi:10.1161/hc4401.098293

    authors: Buus NH,Bøttcher M,Hermansen F,Sander M,Nielsen TT,Mulvany MJ

    更新日期:2001-11-06 00:00:00

  • Youth with obesity and obesity-related type 2 diabetes mellitus demonstrate abnormalities in carotid structure and function.

    abstract:BACKGROUND:Adults with obesity or type 2 diabetes mellitus (T2DM) are at higher risk for stroke and myocardial infarction. Increased carotid intima-media thickness (cIMT) and stiffness are associated with these adverse outcomes. We compared carotid arteries in youth who were lean, were obese, or had T2DM. METHODS AND ...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/CIRCULATIONAHA.108.830380

    authors: Urbina EM,Kimball TR,McCoy CE,Khoury PR,Daniels SR,Dolan LM

    更新日期:2009-06-09 00:00:00

  • Human platelet Ca2+ mobilization, glycoprotein IIb/IIIa activation, and experimental coronary thrombosis in vivo in dogs are all inhibited by the inotropic agent amrinone.

    abstract:BACKGROUND:Inotropic drugs are often used to treat acute, severe heart failure resulting from acute myocardial infarction and other unstable coronary artery syndromes. However, catecholamine inotropic agents may potentiate coronary thrombosis via a platelet alpha2-adrenergic mechanism, thus exacerbating the original pr...

    journal_title:Circulation

    pub_type: 杂志文章

    doi:10.1161/01.cir.96.5.1647

    authors: Sill JC,Bertha B,Berger I,Uhl C,Nugent M,Folts J

    更新日期:1997-09-02 00:00:00