Anatomical study of length and branching pattern of main trunk of the left coronary artery

Sobrinho, O. Pereira da Costa; Lucena, Jalles Dantas de; Pessoa, R. Silva; Veríssimo, N. Andrade; Nunes, Lucas Martins de Exel; Rojas, P. Karline; Macedo, Emmanuel; Barreto, Jackeline; Ribeiro, Howard Lopes; Gondim, Delane Viana; Cerqueira, Gilberto Santos; Silveira, H. Freitas da

doi:10.1016/j.morpho.2018.10.002

Cited by 9 publications

(6 citation statements)

References 17 publications

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“…In the present study there was no nding of pentafurcation, which is similar to the Kulkarni JP et al [3] Hosapatna M et al[6], Anbumani TL et al[18], Narula H et al [19], Nguyen VH et al [20] O.Pereira da Costa Sobrinho et al [10] Anbusudar K et al [21] and Yassa HD et al ndings. [22] MYOCARDIAL BRIDGING…”

Section: Course Of Lcasupporting

confidence: 87%

“…According to the present study quadrifurcation (6.6%) of the LCA was lesser than Kalpana R et al [15] (11%), Ogengo JA et al [17] (9.6%), Beg MRU et al [7] (10%), and Kumar A et al[8] (7.69%) ndings, and it was greater than Anbumani TL et al[18] (4%) and O.Pereira da costa sobrino et al [10] (7.94%), Lakshmiprabha S et al [9] (1.82%) and Kulkarni JP et al [3] (0%) ndings.…”

Section: Course Of Lcacontrasting

confidence: 49%

“…Kalpana R et al [15] [10] 2018 found the left main coronary artery bifurcation in 39.68%, trifurcation in 52.38% and quadrifurcation in 7.94% of 63 specimens. Lakshmi Praba et al [9] 2018 found the LCA bifurcation in 54.54%, trifurcation in 41.82%, quadrifurcation in 1.82% and pentafurcation in 1.82% of 55 heart specimens.…”

Section: Course Of Lcamentioning

confidence: 99%

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An Anatomical Study of Left Coronary Artery and Its Variations :A Cadaveric Study

Ranjan

Mehta

2023

Preprint

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PURPOSE The branching pattern of the left coronary artery (LCA) presents with multitude of variance. Thus, the ischemic area due to a myocardial infarction can be different among patients, this study is done to find out what are the various anatomic variations in left coronary artery? Hence this study is done to is to study left coronary artery variations in cadaveric hearts especially in origin and branching pattern. METHODS This study utilized 30 cadaveric heart specimens. Selection of cadaveric Hearts were not based on age and sex. The location and number of orifices in the aortic cusps, branching patterns and course of the LCA and the dominant patterns wereobserved. RESULTS The LCA after arising from the left posterior aortic sinus (LPAS), its main trunk ran forwards between the pulmonary trunk and the left auricle, and then in the left atrioventricular groove in all the 30 Cadavers. Bifurcation seen in 20(66.6%), trifurcation in 8(26.6%) and quadrifurcation in 2(6.6%). Right dominance was seen in 19(64%) specimens while left dominance was seen in 11(36.6%) heart specimens. Myocardial bridging was seen in four hearts (13%) involving left anterior descending artery. CONCLUSION: The study of coronary arteries is necessary for the cardio-thoracic surgeons. Awareness of the anatomy of coronary vessels and its variations is necessary for revascularisation during coronary artery bypass grafting.

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Section: Course Of Lcasupporting

confidence: 87%

Section: Course Of Lcacontrasting

confidence: 49%

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An Anatomical Study of Left Coronary Artery and Its Variations :A Cadaveric Study

Ranjan

Mehta

2023

Preprint

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“…Typically, LM bifurcates in LAD and LCX. Sometimes, an additional artery, known as RI, arises at the bifurcation of the LM, forming a trifurcation [17,18]. RI can be identified by CAG; however, standard angiographic projections of CAG are often associated with vessel foreshortening and anatomical overlap [12].…”

Section: Discussionmentioning

confidence: 99%

Role of IVUS in the rectification of angiographically judged ramus intermedius and its clinical significance

Gong

Huang

Sun

et al. 2021

BMC Cardiovasc Disord

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Background Due to the technical limitations of coronary artery angiography (CAG), ramus intermedius (RI) is sometimes difficult to distinguish from a high-origin obtuse marginal branch or a high-origin diagonal branch. This study sought to investigate the role of intravascular ultrasonography (IVUS) in the rectification of angiographically judged RI. Methods This study retrospectively analyzed 165 patients who were reported to have an RI based on CAG and underwent IVUS implementation from 02/01/2009 to 31/12/2019 in Zhongshan Hospital, Fudan University. Taking IVUS as the gold standard, we calculated the accuracy of RI identification by CAG and evaluated the impact of RI on revascularization strategy. Results Among the 165 patients, 89 patients (54%) were demonstrated to have an RI on IVUS (IVUS-RI), 32 patients (19%) were identified to have a high-origin diagonal branch on IVUS (IVUS-h-D), and 44 patients (27%) had an actual high-origin obtuse marginal artery on IVUS (IVUS-h-OM). Among 84 patients who underwent one-stent crossover stenting because of left main furcation lesions (48 patients in the IVUS-RI group, 12 patients in the IVUS-h-D group, and 24 in the IVUS-h-OM group), 14.6% of patients in the IVUS-RI group, 33.3% in the IVUS-h-D group and 0% in the IVUS-h-OM group had CAG-RI compromise (P = 0.02), which was defined as severe stenosis of the RI ostium (> 75%) or significant RI flow impairment (TIMI < 3). Conclusions Only 54% of CAG-RIs were confirmed by IVUS, which indicates the necessity of preintervention IVUS to distinguish real RIs from other branches in LM furcation lesions.

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“…The risk of SCD is considerably higher when LCX or LAD passes through the aorta and pulmonary artery. However, anomalies of great vessels of the heart have been observed when LCMA originates through the posterior sinus of Valsalva [5,6].…”

Section: Discussionmentioning

confidence: 99%

A Rare Presentation of Angina and Arrhythmia in Absent Left Main Coronary Artery

Ashraf

Salman

Ali

et al. 2020

Cureus

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Anatomical study of length and branching pattern of main trunk of the left coronary artery

Cited by 9 publications

References 17 publications

An Anatomical Study of Left Coronary Artery and Its Variations :A Cadaveric Study

An Anatomical Study of Left Coronary Artery and Its Variations :A Cadaveric Study

Role of IVUS in the rectification of angiographically judged ramus intermedius and its clinical significance

A Rare Presentation of Angina and Arrhythmia in Absent Left Main Coronary Artery

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