Predicting Early Coronary Artery Bypass Graft Failure by Intraoperative Transit Time Flow Measurement

Tokuda, Yoshiyuki; Song, Min Ho; Oshima, Hideki; Usui, Akihiko; Ueda, Yuichi

doi:10.1016/j.athoracsur.2007.07.040

Cited by 79 publications

(59 citation statements)

References 11 publications

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“…Clear cut-off values for graft revision in terms of MGF, PI, and IR have not been set. Tokuda and colleagues found that for grafts to the left coronary system, a mean flow < 15 ml min À1 , and for grafts to the right coronary system, a mean flow <20 ml min À1 were predictive of graft failure [24]. They also stated that PI > 5.0 and IR > 4%, and PI > 4.7 and IR > 4.6% were predictive of graft failure in the left and right coronary system, respectively, within the 1 year of follow-up [24].…”

Section: Discussionmentioning

confidence: 97%

Clinical value of intra-operative transit-time flow measurement for coronary artery bypass grafting: a prospective angiography-controlled study

Jokinen

Werkkala

Vainikka

et al. 2011

European Journal of Cardio-Thoracic Surgery

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TTFM predicts graft failure within the 6 months after CABG. However, specific cut-off recommendations for when to revise a graft cannot be set on the basis of TTFM. The cut-off values suggested in the literature lead to unnecessary graft revisions in the majority of cases, and, on the other hand, many technical defects probably remain unnoticed. Better methods to assess the quality of coronary artery bypass grafts are needed.

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Section: Discussionmentioning

confidence: 97%

Clinical value of intra-operative transit-time flow measurement for coronary artery bypass grafting: a prospective angiography-controlled study

Jokinen

Werkkala

Vainikka

et al. 2011

European Journal of Cardio-Thoracic Surgery

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“…Several studies have evaluated the TTFMs' ability to demonstrate graft failure intraoperatively and attempted to find validated cut‐off flow values for clinical use in determining graft failure. These studies have reached different results regarding the interpretation of flow values, have been incongruent with respect to clinical end‐points, with limited sample size and primarily short‐term follow‐up …”

mentioning

confidence: 99%

Transit-Time Flow Measurement as a Predictor of Coronary Bypass Graft Failure at One Year Angiographic Follow-Up

et al. 2014

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“…Therefore, if the RA is to be used as a conduit in Coronary Artery Bypass Graft surgery, it may be harvested in either a skeletonized or pedicled fashion, however, their study suggested that skeletonitazion may offer the radial conduit some patency benefit when compared to the pedicled technique 23 . Tokuda et al 24 found that for grafts to the left coronary system, a mean flow < 15 ml/min, and for grafts to the right coronary system, a mean flow < 20 ml/min were predictive of graft failure.…”

Section: Discussionmentioning

confidence: 99%

Effects of Skeletonized versus Pedicled Radial Artery on Postoperative Graft Patency and Flow

Bonini¹,

Staico²,

Issa³

et al. 2014

Arquivos Brasileiros De Cardiologia

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BackgroundRadial artery (RA) was the second arterial graft introduced in clinical practice for myocardial revascularization. The skeletonization technique of the left internal thoracic artery (LITA) may actually change the graft's flow capacity with potential advantages. This leads to the assumption that the behavior of the RA, as a coronary graft, is similar to that of the LITA, when skeletonized.ObjectiveThis study evaluated 'free' aortic-coronary radial artery (RA) grafts, whether skeletonized or with adjacent tissues.MethodsA prospective randomized study comparing 40 patients distributed into two groups was conducted. In group I, we used skeletonized radial arteries (20 patients), and in group II, we used radial arteries with adjacent tissues (20 patients). After the surgical procedure, patients underwent flow velocity measurements.ResultsThe main surgical variables were: RA internal diameter, RA length, and free blood flow in the radial artery. The mean RA graft diameters as calculated using quantitative angiography in the immediate postoperative period were similar, as well as the flow velocity measurement variables. On the other hand, coronary cineangiography showed the presence of occlusion in one RA graft and stenosis in five RA grafts in GII, while GI presented stenosis in only one RA graft (p = 0.045).ConclusionThese results show that the morphological and pathological features, as well as the hemodynamic performance of the free radial artery grafts, whether prepared in a skeletonized manner or with adjacent tissues, are similar. However, a larger number of non-obstructive lesions may be observed when RA is prepared with adjacent tissues.

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Predicting Early Coronary Artery Bypass Graft Failure by Intraoperative Transit Time Flow Measurement

Cited by 79 publications

References 11 publications

Clinical value of intra-operative transit-time flow measurement for coronary artery bypass grafting: a prospective angiography-controlled study

Clinical value of intra-operative transit-time flow measurement for coronary artery bypass grafting: a prospective angiography-controlled study

Transit-Time Flow Measurement as a Predictor of Coronary Bypass Graft Failure at One Year Angiographic Follow-Up

Effects of Skeletonized versus Pedicled Radial Artery on Postoperative Graft Patency and Flow

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