The phantom of “Myocardial Sinusoids”: A historical reappraisal

Tsang, John C.; Chiu, Ray C.‐J.

doi:10.1016/0003-4975(95)00721-0

Cited by 58 publications

(17 citation statements)

References 23 publications

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“…16 17 Furthermore, while the persisting sinusoids are enlargements of the coronary vessels (comparable with haemangioma), the recesses in IVNC have no connection with the coronary circulation 1118 In fact they are recesses covered by endocardial lining continuous with the ventricular cavity, predisposing to local thrombus formation.…”

mentioning

confidence: 99%

Echocardiographic and pathoanatomical characteristics of isolated left ventricular non-compaction: a step towards classification as a distinct cardiomyopathy

Jenni¹,

Oechslin²,

Schneider³

et al. 2001

Heart

1,353

1,147

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Aim-To determine clear cut echocardiographic criteria for isolated ventricular non-compaction (IVNC), a cardiomyopathy as yet "unclassified" by the World Health Organization. The disease is not widely known and its diagnosis mostly missed. Methods and results-In seven out of a series of 34 patients with IVNC the in vivo echocardiographic characteristics were validated against the anatomical examination of the heart removed after death in four and due to heart transplantation in three patients. Four morphological criteria diagnostic for IVNC were found. (1) Coexisting cardiac abnormalities were absent (by definition). (2) A two layer structure was seen, with a compacted thin epicardial band and a much thicker non-compacted endocardial layer of trabecular meshwork with deep endomyocardial spaces. A maximal end systolic ratio of non-compacted to compacted layers of > 2 is diagnostic. (3) The predominant localisation of the pathology was to mid-lateral (seven of seven patients), apical (six), and mid-inferior (seven) areas. The pathological preparations confirmed the echocardiographic findings. Concomitant regional hypokinesia was not confined to the non-compacted segments. (4) There was colour Doppler evidence of deep perfused intertrabecular recesses. Conclusions-Four clear cut echocardiographic diagnostic criteria were established. It is suggested that the WHO classification of cardiomyopathies be reconsidered to include IVNC as a distinct cardiomyopathy. (Heart 2001;86:666-671)

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mentioning

confidence: 99%

Echocardiographic and pathoanatomical characteristics of isolated left ventricular non-compaction: a step towards classification as a distinct cardiomyopathy

Jenni¹,

Oechslin²,

Schneider³

et al. 2001

Heart

1,353

1,147

View full text Add to dashboard Cite

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“…At this time, it was not believed that the diseased coronary artery was amenable to direct manipulation; therefore, the Vineberg LIMA implantation sought to take advantage of the myocardial sinusoids, and proposed that these sinusoidal spaces would behave as a sponge for LIMA run-off. 3 Cardiopulmonary bypass was developed in 1954. 4 Subsequently, Kolessov, in 1967, distally anastomosed the LIMA conduit to the left anterior descending artery (LAD).…”

Section: Evolution Of Surgical Revascularizationmentioning

confidence: 99%

Coronary artery bypass grafting versus percutaneous intervention in coronary revascularization: a historical perspective and review

Burgess¹,

Edmond²,

Juergens³

et al. 2015

RRCC

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Background: Coronary artery bypass graft surgery is arguably the most intensively studied surgical procedure, and percutaneous coronary intervention (PCI) has been subjected to more randomized clinical trials than any other interventional procedure. Changes seen in revascularization techniques have been numerous. The rapid evolution of evidence-based revascularization procedures has occurred as a result of many pivotal large randomized clinical trials. Objective: This review compares and contrasts outcomes from two coronary revascularization techniques, coronary artery bypass grafting (CABG) and PCI, with particular reference to the landmark trials that inform practice guidelines. Methods: We undertook a comprehensive review of published literature addressing trials in this field performed to address current knowledge both in the predrug-eluting stent and postdrug-eluting stent era. Results and discussion: Surgical and percutaneous revascularization strategies have different strengths and weaknesses, and neither strategy is superior in all patients, clinical presentations, or anatomical subgroups. Current data support the use of percutaneous intervention in ST elevation myocardial infarction and in single-vessel disease. In noncomplex multivessel disease and isolated left main stem PCI, the data support non-inferiority of PCI compared to CABG as reflected in the 2014 European Society of Cardiology guidelines. Landmark revascularization trials of multivessel disease comparing CABG to PCI found no survival benefit to CABG over PCI, except in patients with complex disease. In these trials, revascularization drove differences in primary endpoints and in all but the patients with low Synergy Between Percutaneous Coronary Intervention with Taxus and Cardiac surgery score, rates of revascularization were significantly lower with CABG. The new 2014 European Society of Cardiology guidelines also reflect this. Conclusion:The field of coronary revascularization is complex and constantly evolving. The best revascularization strategy for an individual patient must take into account clinical presentation, comorbidities, the extent and complexity of the coronary artery disease, and data from trials reflecting contemporary practice.

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“…Although the existence of these ''myocardial sinusoids'' has never been proven in human hearts [2], Sen et al [3], based on this work, proposed that creation of multiple transmyocardial channels with needle puncture could provide direct perfusion of the myocardium from the LV chamber and reduce the severity of ischemia produced by an inadequate epicardial blood supply. Using a canine model, Sen et al [3,4] demonstrated that the transmyocardial needle puncture technique could reduce infarct size and mortality following epicardial vessel ligation.…”

Section: Introductionmentioning

confidence: 96%

Percutaneous method of laser transmyocardial revascularization

Kim

Kesten

Javier

et al. 1997

Cathet. Cardiovasc. Diagn.

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Laser transmyocardial revascularization (TMR) creates conduits from the left ventricular cavity into the myocardium and has been forwarded as a potential method of perfusing ischemic myocardium. The procedure typically employs a CO2 laser to produce transmyocardial channels from the epicardial to the endocardial surface via an open thoracotomy. Preliminary studies in animals and human subjects have yielded promising results, and clinical trials evaluating the long‐term efficacy of the procedure are in progress. We now report the use of a percutaneous method of TMR using a laser delivered through a novel catheter system. To assess the feasibility of performing percutaneous TMR, studies were performed on 15 adult canine subjects utilizing a holmium:YAG laser. Via a femoral artery approach, novel laser catheters were introduced into the left ventricular cavity under fluoroscopic guidance. Biplane coronary angiography, ventriculography, and transesophageal echocardiography were employed to direct catheters to specific regions and assess the efficacy of creating transmyocardial channels. Multiple channels could be created in the anterior, lateral, inferoposterior, and septal regions as demonstrated by contrast ventriculography with confirmation by subsequent gross and histologic examination. The procedure was tolerated well without any ventricular dysfunction or sustained ventricular arrhythmias. We have demonstrated that laser transmyocardial revascularization via a percutaneous approach is feasible with creation of channels from the endocardial surface of the left ventricle into the myocardium. On gross and histological examination, these channels are similar in appearance to those created by the currently employed open chest, epicardial method of TMR. Cathet. Cardiovasc. Diagn. 40:223–228, 1997. © 1997 Wiley‐Liss, Inc.

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The phantom of “Myocardial Sinusoids”: A historical reappraisal

Cited by 58 publications

References 23 publications

Echocardiographic and pathoanatomical characteristics of isolated left ventricular non-compaction: a step towards classification as a distinct cardiomyopathy

Echocardiographic and pathoanatomical characteristics of isolated left ventricular non-compaction: a step towards classification as a distinct cardiomyopathy

Coronary artery bypass grafting versus percutaneous intervention in coronary revascularization: a historical perspective and review

Percutaneous method of laser transmyocardial revascularization

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