Regional work of the ventricle: wall tension--area relation.

Abstract:

:We clarified that the set of the isotropic component (T) of wall tension and the area (A) of a selected region of the left ventricular wall expresses the regional work with sufficient accuracy. The area surrounded by the locus of the T-A relation in the T-A plane is approximately equal to the real work done by that region. The behavior of the T-A loop was studied in nine anesthetized dogs under various conditions. The regional area and diameter of the left ventricle were measured with ultrasonic crystal pairs. The wall tension was calculated from measured left ventricular pressure and diameter by a generalized Laplace's equation for a thick-walled model. During volume loading, administration of methoxamine, and aortic constriction, the regional work per stroke increased with the increase in end-diastolic regional area, which is considered to be the regional Frank-Starling mechanism. With the development of ischemia, the T-A loop for the ischemic region shifted to the right and the work done by that region decreased. After a certain stage in the development of ischemia, the work done by the ischemic region became negative. When only one of the segmental lengths, rather than the area, is measured, difficulty arises in the physical interpretation of pressure-length or tension-length data in some cases. The T-A loop diagram resolves such difficulty by defining the regional work correctly. We conclude that the T-A loop diagram is a useful tool for analyzing the regional ventricular function.

journal_name

Heart Vessels

journal_title

Heart and vessels

authors

Sugawara M,Tamiya K,Nakano K

doi

10.1007/BF02066408

subject

Has Abstract

pub_date

1985-08-01 00:00:00

pages

133-44

issue

3

eissn

0910-8327

issn

1615-2573

journal_volume

1

pub_type

杂志文章
  • More coronary artery stenosis, more cerebral artery stenosis? A simultaneous angiographic study discloses their strong correlation.

    abstract::Cerebral artery stenosis (CAS) has the same pathogenesis as coronary artery disease (CAD), but the coexistence of these two diseases has been rarely reported. To detect coexistent CAS in CAD patients, we conducted a study of simultaneous coronary and cerebral angiography. Of the 663 consecutive newly diagnosed CAD pat...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-006-0971-8

    authors: Li AH,Chu YT,Yang LH,Chen KC,Chu SH

    更新日期:2007-09-01 00:00:00

  • Forearm vasoconstriction during dynamic leg exercise in patients with chronic heart failure.

    abstract::Previous studies assessing vascular responses in nonexercising beds during exercise in patients with chronic heart failure (CHF) have yielded varying results. We proposed that the clinical and hemodynamic severity of heart failure may explain some of the variation. We reasoned that diastolic ventricular interaction (D...

    journal_title:Heart and vessels

    pub_type: 临床试验,杂志文章

    doi:10.1007/BF03257232

    authors: Atherton JJ,Dryburgh LG,Thomson HL,Moore TD,Wright KN,Muehle GW,Fitzpatrick LE,Frenneaux MP

    更新日期:1998-01-01 00:00:00

  • Preoperative endothelial function and long-term cardiovascular events in patients undergoing cardiovascular surgery.

    abstract::We recently reported that preoperative endothelial dysfunction [i.e., reactive hyperemia index (RHI) ≤ 1.64] predicted short-term postoperative adverse events in patients undergoing cardiovascular surgery. However, the relationship between preoperative RHI and long-term cardiovascular risk in these patients is unclear...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-018-1248-8

    authors: Saito Y,Kitahara H,Matsumiya G,Kobayashi Y

    更新日期:2019-02-01 00:00:00

  • Echocardiographic surrogates of right atrial pressure in pulmonary hypertension.

    abstract::Right atrial pressure (RAP), a representative parameter of right heart failure, is very important for prognostic evaluation and risk assessment in pulmonary hypertension. However, its measurement requires invasive cardiac catheterization. In this study, we determined the most accurate echocardiographic surrogate of ca...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-018-1264-8

    authors: Watanabe R,Amano H,Saito F,Toyoda S,Sakuma M,Abe S,Nakajima T,Inoue T

    更新日期:2019-03-01 00:00:00

  • Altered myocardial acetylcholine and norepinephrine concentrations in right ventricular hypertrophy and failure.

    abstract::The progression of cardiac hypertrophy and failure is associated with marked changes in cardiac autonomic innervation, and there are sympathetic-parasympathetic interactions in the regulation of cardiac function. Although the indexes of sympathetic innervation have been found to be depressed with the development of he...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/BF02058280

    authors: Yamada Y,Okumura K,Hashimoto H,Ito T,Satake T

    更新日期:1991-01-01 00:00:00

  • Real-world outcomes of rivaroxaban treatment in elderly Japanese patients with nonvalvular atrial fibrillation.

    abstract::Direct oral anticoagulants (DOACs), such as rivaroxaban, reduce the risk of stroke and systemic embolism in patients with nonvalvular atrial fibrillation (NVAF). However, it is still unclear whether the stroke reduction benefit outweighs the bleeding risk in elderly Japanese patients with NVAF. The Xarelto Post-Author...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-019-01487-x

    authors: Kitazono T,Ikeda T,Ogawa S,Nakagawara J,Minematsu K,Miyamoto S,Murakawa Y,Cavaliere M,Hayashi Y,Kidani Y,Okayama Y,Sunaya T,Sato S,Yamanaka S

    更新日期:2020-03-01 00:00:00

  • The effects of enoximone (MDL-17043) on forearm venous circulation in healthy volunteers and patients with heart failure.

    abstract::The effect of intravenous enoximone on forearm venous circulation was studied in ten healthy volunteers (group A) and in ten patients with NYHA class III-IV congestive heart failure (group B). Distensibility of the forearm capacitance vessels was assessed from pressure-volume curves by venous occlusion plethysmography...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/BF02058791

    authors: Branzi A,Berardi C,Ferretti RM,Beato E,Magnani G,Melandri G,Zannoli R,Magnani B

    更新日期:1987-01-01 00:00:00

  • Soluble TNF-related apoptosis induced ligand (sTRAIL) is augmented by Post-Conditioning and correlates to infarct size and left ventricle dysfunction in STEMI patients: a substudy from a randomized clinical trial.

    abstract::Low levels of Soluble TNF-related apoptosis induced ligand (sTRAIL) seem to be related to worse prognosis after an acute coronary syndrome. PostConditioning (PostCond) may protect the heart from reperfusion injury. We sought to evaluate the impact of PostCond on sTRAIL in relationship to infarct size (area under the c...

    journal_title:Heart and vessels

    pub_type: 杂志文章,随机对照试验

    doi:10.1007/s00380-016-0851-9

    authors: Luz A,Santos M,Magalhães R,Oliveira JC,Pacheco A,Silveira J,Cabral S,Torres S,Leite-Moreira AF,Carvalho H

    更新日期:2017-02-01 00:00:00

  • Assessment of vascular autonomic function using peripheral arterial tonometry.

    abstract::Peripheral autonomic function is impaired in diabetic polyneuropathy. However, it is difficult to evaluate it due to the lack of non-invasive quantitative assessment. We aimed to establish a novel index to evaluate vascular autonomic function using reactive hyperemia peripheral arterial tonometry (RH-PAT), a widely pe...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-016-0870-6

    authors: Hamada S,Oono A,Ishihara Y,Hasegawa Y,Akaza M,Sumi Y,Inoue Y,Izumiyama H,Hirao K,Isobe M,Sasano T

    更新日期:2017-03-01 00:00:00

  • Heart failure with preserved vs reduced ejection fraction following cardiac rehabilitation: impact of endothelial function.

    abstract::There is no proven therapy for heart failure with preserved ejection fraction (HFpEF). Research has shown beneficial responses to cardiac rehabilitation (CR) among HF patients. To date, there are no reports comparing those responses between patients with HFpEF and those with reduced ejection fraction (HFrEF). The purp...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-018-1128-2

    authors: Tanaka S,Sanuki Y,Ozumi K,Harada T,Tasaki H

    更新日期:2018-08-01 00:00:00

  • Effects of levamisole, an immunomodulator, upon murine encephalomyocarditis virus myocarditis.

    abstract::To test the therapeutic efficacy of levamisole, 5-week-old DBA/2 mice were inoculated intraperitoneally with 10 plaque-forming units of encephalo-myocarditis virus. Levamisole (2.5 mg/kg/per day) was administered intraperitoneally daily, starting simultaneously with the virus inoculation, in experiment I for 14 days, ...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/BF02820869

    authors: Kishimoto C,Takada H,Hiraoka Y,Kurokawa M,Ochiai H

    更新日期:1997-01-01 00:00:00

  • The synergistic therapeutic effect of hepatocyte growth factor and granulocyte colony-stimulating factor on pulmonary hypertension in rats.

    abstract::Pulmonary arterial hypertension (PAH) is characterized by a progressive increase in pulmonary arterial pressure and vascular resistance. Despite advances in therapy for PAH, its treatment and prognosis remain poor. We aimed to investigate whether the transplantation of bone marrow mesenchymal stem cells (MSCs) overexp...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-013-0395-1

    authors: Guo Y,Su L,Li Y,Guo N,Xie L,Zhang D,Zhang X,Li H,Zhang G,Wang Y,Liu C

    更新日期:2014-07-01 00:00:00

  • The correlation between the cardio-ankle vascular index (CAVI) and serum amyloid A in asymptomatic Japanese subjects.

    abstract::Chronic inflammation has received a great deal of attention due to the role it plays in cardiovascular disease (CVD). The cardio-ankle vascular index (CAVI) has recently been developed to evaluate arterial stiffness. This index is independent of blood pressure at the time that it is measured, making it a better measur...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-011-0182-9

    authors: Kotani K,Yamada T,Miyamoto M,Kario K,Ishibashi S,Taniguchi N

    更新日期:2012-09-01 00:00:00

  • Relationship between aerobic fitness and progression of coronary atherosclerosis.

    abstract::Cross-sectional data suggest that the degree of coronary atherosclerosis is associated with aerobic fitness. However, there are limited longitudinal data addressing whether aerobic fitness is a predictor of coronary atherosclerosis progression. This study investigated whether peak oxygen consumption is related to a lo...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-015-0745-2

    authors: Sung J,Cho SJ,Choe YH,Yoo S,Woo KG,Choi YH,Hong KP

    更新日期:2016-09-01 00:00:00

  • Sudden death due to aortic rupture in acromegaly.

    abstract::Acromegaly, when left untreated, is associated with premature mortality which is chiefly related to cardiovascular complications. We report on a 50-year-old acromegalic woman, resistant to therapy, who died suddenly because of thoracic aortic rupture and massive bleeding into the left pleural space. The postmortem exa...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-007-1012-y

    authors: Maffei P,Menegazzo C,Michelotto M,Salmaso R,Martini C,De Carlo E,Carli M,Barban M,Fassina A,Vettor R,Sicolo N

    更新日期:2008-01-01 00:00:00

  • Extended-release niacin/laropiprant improves endothelial function in patients after myocardial infarction.

    abstract::Raising high-density lipoprotein cholesterol (HDL-C) is an important strategy for reducing residual cardiovascular risk. In the present study, we sought to assess the effect of extended-release niacin/laropiprant on endothelial function in patients after a myocardial infarction with target low-density lipoprotein chol...

    journal_title:Heart and vessels

    pub_type: 杂志文章,随机对照试验

    doi:10.1007/s00380-013-0367-5

    authors: Bregar U,Jug B,Keber I,Cevc M,Sebestjen M

    更新日期:2014-05-01 00:00:00

  • Association between valvuloarterial impedance after transcatheter aortic valve implantation and 2-year mortality in elderly patients with severe symptomatic aortic stenosis: the OCEAN-TAVI registry.

    abstract::Pre-procedural valvuloarterial impedance (Zva) is considered as a useful predictor of mortality in patients diagnosed as having severe aortic stenosis (AS) who undergo transcatheter aortic valve implantation (TAVI). However, the prognostic significance of post-procedural Zva remains unclear. We aimed to evaluate the p...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-018-01329-2

    authors: Nagura F,Kataoka A,Hara M,Kozuma K,Watanabe Y,Nakashima M,Hioki H,Kawashima H,Nara Y,Shirai S,Tada N,Araki M,Naganuma T,Yamanaka F,Ueno H,Tabata M,Mizutani K,Higashimori A,Takagi K,Yamamoto M,Hayashida K,OCEAN-T

    更新日期:2019-06-01 00:00:00

  • History of gastroesophageal reflux disease in patients with suspected coronary artery disease.

    abstract::It is well known that patients with gastroesophageal reflux disease (GERD) experience GERD-related chest pain, but little is known about the relationship between GERD and coronary artery disease (CAD). We evaluated medical history of GERD in patients with suspected CAD and its association with types of CAD. We enrolle...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-019-01413-1

    authors: Teragawa H,Oshita C,Ueda T

    更新日期:2019-10-01 00:00:00

  • Coronary sinus catheter placement via left cubital vein for phrenic nerve stimulation during pulmonary vein isolation.

    abstract::Phrenic nerve (PN) stimulation is essential for the elimination of PN palsy during balloon-based pulmonary vein isolation (PVI). Although ultrasound-guided vascular access is safe, insertion of a PN stimulation catheter via central venous access carries a potential risk of the development of mechanical complications. ...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-019-01402-4

    authors: Chikata A,Kato T,Usuda K,Fujita S,Maruyama M,Otowa KI,Takashima SI,Murai H,Usui S,Furusho H,Kaneko S,Takamura M

    更新日期:2019-10-01 00:00:00

  • Asymptomatic kindred of patients with coronary events have increased peripheral T-cell activities.

    abstract::T cells are involved in the pathogenesis of atherosclerosis. We aimed to search for any association between the peripheral T-cell activities and atherogenic risk factors in healthy subjects. Fifty male volunteers (age 22.0 +/- 2.4 years) were enrolled. No subject had any chronic disease or was under any drug treatment...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-005-0893-x

    authors: Sonmez A,Kisa U,Uckaya G,Eyileten T,Kinalp C,Yilmaz MI,Dogru T,Turan M,Kocar IH

    更新日期:2006-07-01 00:00:00

  • Differences in prothrombotic response between the uninterrupted and interrupted apixaban therapies in patients undergoing cryoballoon ablation for paroxysmal atrial fibrillation: a randomized controlled study.

    abstract::Periprocedural bleeding and thromboembolic events are worrisome complications of catheter ablation for atrial fibrillation (AF). Periprocedural anticoagulation management could decrease the risk of these complications. However, evaluation of the complications from pulmonary vein isolation using cryoballoon related to ...

    journal_title:Heart and vessels

    pub_type: 杂志文章,随机对照试验

    doi:10.1007/s00380-019-01370-9

    authors: Ando M,Inden Y,Yoshida Y,Sairaku A,Yanagisawa S,Suzuki H,Watanabe R,Takenaka M,Maeda M,Murohara T

    更新日期:2019-09-01 00:00:00

  • Systolic pressure-volume area (PVA) as the energy of contraction in Starling's law of the heart.

    abstract::We have theoretically proposed "systolic pressure-volume area" (PVA) as a measure of total mechanical energy generated by ventricular contraction. We then experimentally showed that PVA closely correlates with left ventricular oxygen consumption (Vo2) regardless of ventricular loading conditions in a stable contractil...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/BF02058751

    authors: Suga H,Goto Y,Futaki S,Kawaguchi O,Yaku H,Hata K,Takasago T

    更新日期:1991-01-01 00:00:00

  • Efficacy of Endeavor zotarolimus-eluting stent implantation for the treatment of very late stent thrombosis with late-acquired incomplete stent apposition after sirolimus-eluting stent implantation.

    abstract::Very late stent thrombosis (VLST) is a serious complication after percutaneous coronary intervention. However, the best therapy for VLST with late-acquired incomplete stent apposition and incomplete neointimal coverage remains unknown. In these cases, neointimal coverage was nearly complete and no late-acquired malapp...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-015-0720-y

    authors: Kakefuda Y,Sato A,Watabe H,Aihara H,Nishina H,Noguchi Y,Hoshi T,Aonuma K

    更新日期:2016-07-01 00:00:00

  • A novel predictor of clinical outcomes in patients with heart failure with preserved left-ventricular ejection fraction: a pilot study.

    abstract::Predictors of outcomes in patients with heart failure with preserved left-ventricular ejection fraction (HFpEF) remain unclear. The ratio of early diastolic transmitral flow velocity to early diastolic myocardial velocity (E/e') has been proposed, but the predictive accuracy remains unsatisfactory. We hypothesized tha...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-018-1211-8

    authors: Kanda T,Uematsu M,Fujita M,Iida O,Masuda M,Okamoto S,Ishihara T,Nanto K,Tsujimura T,Matsuda Y,Okuno S,Mano T

    更新日期:2018-12-01 00:00:00

  • Electrocardiographic morphology of multiple ventricular arrhythmias originating from the right ventricular outflow tract: inverse correlation of the amplitude in the inferior leads and anatomic height of the origin.

    abstract::It is unclear whether the electrocardiogram amplitude in the inferior leads (Amp-I) can always predict the height of the origin of right ventricular outflow tract arrhythmias (RVOT-VAs). We analyzed patients who received catheter ablation of multiple RVOT-VAs in the same session in our hospital from 2011 to 2016. Two ...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-018-1235-0

    authors: Kajiyama T,Hachiya H,Kusa S,Watanabe T,Hamaya R,Yamao K,Miyazaki S,Igarashi M,Nakamura H,Iesaka Y

    更新日期:2019-02-01 00:00:00

  • Taurine prevents beta-glycerophosphate-induced calcification in cultured rat vascular smooth muscle cells.

    abstract::Vascular calcification is an ectopic calcification that commonly occurs in atherosclerosis. Because taurine was previously shown to protect against cardiovascular diseases, the effect of taurine on vascular calcification was evaluated in calcified vascular smooth muscle cells (VSMCs) of rat in vitro in the present stu...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-003-0744-6

    authors: Li J,Zhang B,Huang Z,Wang S,Tang C,Du J

    更新日期:2004-05-01 00:00:00

  • Narrow QRS ventricular tachycardia from the posterior mitral annulus without involvement of the His-Purkinje system in a patient with prior inferior myocardial infarction.

    abstract::A 54-year-old man with prior inferior myocardial infarction suffered from monomorphic ventricular tachycardia (VT) with narrow QRS complex of 120 ms. During VT, a fragmented prepotential preceding QRS onset by 30 ms at the right ventricular posterior septum and a late diastolic potential preceding QRS onset by 70 ms a...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-009-1180-z

    authors: Sakamoto T,Fujiki A,Nakatani Y,Sakabe M,Mizumaki K,Inoue H

    更新日期:2010-03-01 00:00:00

  • Distribution of light chains and ATPase activity of myosin in the atrioventricular conducting tissue of bovine heart.

    abstract::The relations of the light chains of myosins of the atria, ventricles, and atrioventricular conducting tissue (specialized myocardial tissue) and the distribution of the light chains of myosin in different regions of the atrioventricular conducting tissue in bovine heart were examined. Two-dimensional gel electrophore...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/BF02059969

    authors: Tamura Y,Orino S,Saijyo Y,Nishimoto T,Nagase N,Mori H

    更新日期:1986-01-01 00:00:00

  • Influence of mild cognitive impairment on activities of daily living in patients with cardiovascular disease.

    abstract::Activities of daily living (ADL) are maintained in patients with mild cognitive impairment (MCI), but, in patients with cardiovascular disease, ADL may have already declined. MCI combined with cardiac disease may accentuate the decline of ADL in these patients. Because the relationship between MCI and ADL in patients ...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-019-01437-7

    authors: Ishihara K,Izawa KP,Kitamura M,Shimogai T,Kanejima Y,Morisawa T,Shimizu I

    更新日期:2019-12-01 00:00:00

  • Efficacy and safety of novel epicardial circumferential left atrial ablation with pulmonary vein isolation in sustained atrial fibrillation.

    abstract::The aim of this study was to examine the efficacy and safety of this novel epicardial circumferential left atrial ablation (CLAA) with pulmonary vein isolation (PVI) in sustained atrial fibrillation (AF). Thirty domestic pigs were divided equally into 3 groups: AF without ablation (AF group), AF with PVI (PVI group), ...

    journal_title:Heart and vessels

    pub_type: 杂志文章

    doi:10.1007/s00380-014-0594-4

    authors: Jiang Z,Yin H,He Y,Ma N,Tang M,Liu H,Ding F,Mei J

    更新日期:2015-09-01 00:00:00