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Left internal mammary artery

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https://www.readbyqxmd.com/read/29138364/retrograde-cto-pci-of-native-coronary-arteries-via-left-internal-mammary-artery-grafts-insights-from-a-multicenter-u-s-registry
#1
Peter Tajti, Aris Karatasakis, Dimitri Karmpaliotis, Khaldoon Alaswad, Farouc A Jaffer, Robert W Yeh, Mitul Patel, Ehtisham Mahmud, James W Choi, Anthony H Doing, Catalin Toma, Barry Uretsky, Santiago Garcia, Jeffrey W Moses, Manish Parikh, Ajay Kirtane, Ziad A Ali, Raja Hatem, Judit Karacsonyi, Barbara A Danek, Bavana V Rangan, Subhash Banerjee, Imre Ungi, Emmanouil S Brilakis
BACKGROUND: Retrograde percutaneous coronary intervention (PCI) of native coronary artery chronic total occlusion (CTO) via left internal mammary artery (LIMA) graft has received limited study. METHODS AND RESULTS: We compared the clinical and procedural characteristics and outcomes of retrograde CTO-PCI through LIMA grafts vs other conduits in a contemporary multicenter CTO registry. The LIMA was used as the collateral channel in 20 of 990 retrograde CTO-PCIs (2...
November 15, 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/29126818/composite-y-grafts-from-the-left-internal-mammary-artery-current-considerations
#2
EDITORIAL
Hugh S Paterson, Paul G Bannon
The use of composite coronary artery bypass grafts from the left internal mammary artery (LIMA) has increased over the last 20 years. Total arterial revascularisation can be achieved with two arterial conduits and is associated with a reduced risk of stroke. However, the traditional coronary bypass graft configurations of the in situ LIMA and aorto-coronary saphenous vein grafts remain as the mainstay of coronary bypass surgery in most centres. Concerns regarding composite Y grafts relate to (1) the adequacy of a single inflow for all coronary bypass grafts; (2) the risk of compromising the LIMA flow to the left anterior descending coronary artery; (3) the effects of competitive flow on graft patency; and (4) the use of sequential coronary anastomoses...
October 28, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29122958/a-comparison-of-postoperative-morphometric-and-hemodynamic-changes-between-saphenous-vein-and-left-internal-mammary-artery-grafts
#3
Tingting Fan, Yundi Feng, Feng Feng, Zhongjie Yin, Dayou Luo, Yuan Lu, Yingjin Xu, Wenchang Tan, Yunlong Huo
There is higher long-term failure of the saphenous vein graft (SVG) compared with the left internal mammary artery (LIMA) graft, which is affected by the hemodynamic environment. A comprehensive analysis of postoperative structure-function changes is important to study the atherogenesis in the SVG A comparison of morphometric and hemodynamic parameters was carried out between LIMA grafts and SVGs and between different time points postoperatively. Various parameters were obtained from the image reconstruction and flow simulation in patients, who underwent CT exams for ~1 year, 5 and 10 years after revascularization...
November 2017: Physiological Reports
https://www.readbyqxmd.com/read/29062616/association-of-internal-mammary-artery-flow-with-different-comorbidities-and-post-coronary-artery-bypass-graft-complications
#4
Mudassir Iqbal Dar, Asim Hassan Dar, Muhammad Bilal, Mansoor Ahmad, Abdul Haseeb
Objective The internal mammary artery (IMA) is commonly used arterial graft for coronary artery bypass surgery (CABG). The IMA has a better patency and survival. This study considers different comorbidities and conditions where IMA flow may be low. Therefore, the main objective is to determine the flow of IMA in different diseases, its relation to gender, age, and in different blood groups in order to prevent possible complications. Methods A prospective study was conducted at the Cardiac Surgery Unit, Civil Hospital Karachi from January 2013 to December 2015...
August 20, 2017: Curēus
https://www.readbyqxmd.com/read/29061389/mid-term-graft-patency-of-right-versus-left-internal-mammary-artery-as-arterial-conduit-usage-for-left-anterior-descending-artery-revascularisation-insights-from-a-single-centre-study-of-propensity-matched-data
#5
Qiang Ji, LiMin Xia, YunQing Shi, RunHua Ma, JinQiang Shen, Hao Lai, WenJun Ding, ChunSheng Wang
BACKGROUND: Previous studies reported the strategy of in situ skeletonised right internal mammary artery (RIMA) grafting to the left anterior descending artery (LAD). However, few reports have focused on assessing RIMA graft patency rate after grafting to the LAD. This study aimed to assess mid-term graft patency of in situ skeletonised RIMA grafting to the LAD versus in situ skeletonised left internal mammary artery (LIMA) grafting to the LAD in a single-centre propensity-matched study...
October 20, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/29058975/true-congenital-atresia-of-the-left-main-coronary-ostium-delayed-presentation
#6
Varadaraju Raju, Ramesh Chandrashekar Hebbale, Chandra Sena Muniswamy, Umesh Sivanna, Sunil Kumar Kondethimmanahally Rangaiah
Congenital atresia of the left main coronary ostium is a rare coronary anomaly presenting in adulthood. A 48-year-old man presented with unstable angina. Coronary angiography showed an absent left coronary ostium with a super-dominant right coronary artery retrogradely filling the left system. Computed tomography-angiography with 3-dimensional reconstruction confirmed the absence of the left main coronary artery. In view of ongoing chest pain, the patient was offered coronary artery bypass surgery. Total arterial revascularization was performed with a left internal mammary artery-left radial artery Y-graft...
January 1, 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/29022414/iatrogenic-breast-infarct-following-coronary-artery-bypass-graft-surgery-with-harvesting-of-left-internal-mammary-artery
#7
Jacob Sweeney, Matthew Skovgard, Syed Hoda
No abstract text is available yet for this article.
October 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28988450/feasibility-of-coronary-angiography-and-percutaneous-coronary-intervention-after-transcatheter-aortic-valve-replacement-using-a-medtronic%C3%A2-self-expandable-bioprosthetic-valve
#8
Wah Wah Htun, Cindy Grines, Theodore Schreiber
BACKGROUND AND OBJECTIVE: With aging, the progression of atherosclerosis in the coronary arteries is expected. The Medtronic™ self-expandable aortic bioprosthetic valve is deployed in the supra-annular position, and it has been challenging to selectively engage coronary arteries post-transcatheter aortic valve replacement (TAVR) even though there are diamond-shaped spaces in the mesh frame within the valve. Given the scarcity of data, we analyzed angiographic and clinical data from all patients requiring coronary angiography (CA) or intervention post-TAVR...
October 8, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28972063/current-practice-of-state-of-the-art-surgical-coronary-revascularization
#9
REVIEW
Stuart J Head, Milan Milojevic, David P Taggart, John D Puskas
Coronary artery bypass grafting remains one of the most commonly performed major surgeries, with well-established symptomatic and prognostic benefits in patients with multivessel and left main coronary artery disease. This review summarizes current indications, contemporary practice, and outcomes of coronary artery bypass grafting. Despite an increasingly higher-risk profile of patients, outcomes have significantly improved over time, with significant reductions in operative mortality and perioperative complications...
October 3, 2017: Circulation
https://www.readbyqxmd.com/read/28958083/no-improvements-in-long-term-outcome-after-coronary-artery-bypass-grafting-with-arterial-grafts-as-a-second-conduit-a-swedish-nationwide-registry-study
#10
Mikael Janiec, Axel Dimberg, Timo Z Nazari Shafti, Bo Lagerqvist, Rickard P F Lindblom
OBJECTIVES: Coronary artery bypass grafting using saphenous vein grafts (SVGs) in addition to the left internal mammary artery (IMA) graft is vitiated by poor long-term patency of the vein grafts. Hypothetically, the increased use of arterial grafts could confer even better outcomes. Our goal was to evaluate results after coronary artery bypass grafting in Sweden, where arterial grafts were used as a second conduit. METHODS: Within the Swedish Web System for Enhancement and Development of Evidence-Based Care in Heart Disease Evaluated According to Recommended Therapies (SWEDEHEART) registry, we identified patients who had coronary artery bypass grafting from 2001 to 2015 using the IMA and the SVG, the radial artery (RA) or the additional IMA [bilateral IMA (BIMA)] as a second conduit...
August 28, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28958050/a-second-arterial-conduit-to-the-circumflex-circulation-significantly-improves-survival-after-coronary-artery-bypass-surgery
#11
Suvitesh Luthra, Miguel M Leiva-Juárez, Anil John, Maciej Matuszewski, Ian S Morgan, John S Billing
OBJECTIVES: Conventional coronary artery bypass surgery involves the use of a single left internal mammary artery to the left anterior descending artery and saphenous vein grafts reserved for other sites. This retrospective propensity-matched study investigated the impact of a second arterial conduit to the left-sided circulation on early and long-term survival after coronary artery bypass surgery. METHODS: Data were retrospectively collected from 2004 to 2014 for all revascularizations with at least 1 arterial and/or 1 venous graft to the circumflex circulation, in addition to an internal mammary artery to the left anterior descending artery...
September 12, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28955074/internal-mammary-artery-flow-in-different-racial-groups-of-pakistan
#12
Mudassir Iqbal Dar, Asim Hassan Dar, Mansoor Ahmed, Abdul Haseeb, Muhammad Bilal
OBJECTIVE: To find out any differences in free flow of internal mammary artery among different ethnic groups. METHODS: This observational, cross-sectional study was conducted at the Civil Hospital, Karachi, from January 2013 to December 2015, and comprised patients who underwent coronary artery bypass grafting. The participants were divided into 5 groups, i.e. Sindhi, Muslim migrants from India, Punjabi, Pathan and Balochi patients. Free flow of internal mammary artery was measured immediately after harvesting within a syringe, and its flow was measured in 30 seconds...
October 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28935322/off-pump-double-coronary-artery-bypass-in-a-14-year-old-with-kawasaki-disease
#13
Michael D Fridman, Carl Y Owada, Richard D Gregory, Peter L Birnbaum
A 14-year-old male patient with a history of atypical Kawasaki disease at age 2 presents with triple vessel giant coronary aneurysms. Over the last several years, he began experiencing angina and dyspnea on exertion, which was a result of fully occluded right coronary and left circumflex arteries and 90% stenosis in the left anterior descending artery. He underwent off-pump coronary artery bypass using the left and right internal mammary arteries. At 18-month follow-up, there is no evidence of ischemia. Off-pump bypass is a feasible option for surgical management of the stenotic and occlusive complications of Kawasaki disease...
October 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28890056/giant-chest-wall-arteriovenous-malformation-a-case-report-and-literature-review
#14
Cullen McCarthy, Subrato Deb, Suhair Maqusi, Joshua Gierman
INTRODUCTION: We present an interesting case of a 55 year-old male with a large left chest mass after significant cutaneous bleeding. CT angiogram of the chest revealed arteriovenous malformation with blood supply from subbranches of the left subclavian artery, left internal mammary artery and left external carotid artery. Measuring 5.0x14.0x10.8cm, the mass extended superior to the clavicle and inferior to the third rib with medial and lateral borders at the level of the clavicular head and coracoid, respectively...
September 7, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28871580/successful-treatment-of-blunt-musculophrenic-artery-injury-by-transcatheter-arterial-embolization-a-case-report
#15
Tohru Sawamoto, Hiromichi Aoki, Hiroyuki Otsuka, Seiji Morita, Shigeaki Inoue, Yoshihide Nakagawa, Sadaki Inokuchi
An 86-year-old woman was transported by ambulance after jumping from the second floor of a building. Upon arrival, the blood pressure was stable; however, computed tomography indicated the presence of an anterior mediastinal hematoma. Eight hours after arrival, the patient exhibited shock. The blood pressure increased with rapid infusion. Emergency angiography was performed. Extravasation from the musculophrenic artery, which branches off from the left internal mammary artery, was observed. Transcatheter arterial embolization was performed and bleeding was controlled...
September 20, 2017: Tokai Journal of Experimental and Clinical Medicine
https://www.readbyqxmd.com/read/28846534/the-skeleton-in-the-closet-harvesting-a-skeletonized-ima
#16
Curtis G Tribble
There is a considerable amount of data that using more than one arterial graft provides a survival advantage for patients undergoing coronary bypass operations. The Society of Thoracic Surgeons has a set of official guidelines for the use of arterial grafts which include the following recommendations:Internal mammary arteries (IMA's) should be used to bypass the left anterior descending (LAD) artery when bypass of the LAD is indicated.As an adjunct to left internal mammary artery (LIMA), a second arterial graft (right IMA or radial artery [RA]) should be considered in appropriate patients...
August 28, 2017: Heart Surgery Forum
https://www.readbyqxmd.com/read/28826745/does-continuous-infusion-of-local-anaesthesia-improve-pain-control-and-walking-distance-after-coronary-artery-bypass-graft-surgery-a-randomised-controlled-trial
#17
Serena S Hong, Jennifer A Alison, Maree A Milross, Kristy Robledo, Rebecca Dignan
OBJECTIVES: To evaluate the effects of continuous infusion of ropivacaine compared to sham infusion or usual care on pain scores before and after physiotherapy treatment, distance walked and time to discharge from physiotherapy, after coronary artery bypass graft (CABG) surgery. DESIGN: Prospective, randomised, double blind controlled trial. SETTING AND PARTICIPANTS: Seventy-five participants who underwent CABG surgery with left internal mammary artery grafts were allocated, to the ropivacaine group (n=26), the sham group (n=25), or usual care group (n=24)...
February 21, 2017: Physiotherapy
https://www.readbyqxmd.com/read/28819689/beware-of-the-coronary-arteries-with-implantable-cardiac-electronic-devices
#18
REVIEW
S Serge Barold, Benjamin J Pang, Harry G Mond
The transvenous implantation of cardiac devices may sometimes cause serious complications involving the coronary arteries. The left anterior descending artery may be injured during nonapical right ventricular implantation while a right atrial lead may injure the right or circumflex coronary artery. Injury of a left internal mammary graft to a coronary artery may cause myocardial infarction.
September 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28805102/favourable-long-term-outcome-after-coronary-artery-bypass-grafting-in-a-nationwide-cohort
#19
Hera Johannesdottir, Linda O Arnadottir, Jonas A Adalsteinsson, Tomas A Axelsson, Martin I Sigurdsson, Solveig Helgadottir, Dadi Helgason, Helga R Gardarsdottir, Steinthor A Marteinsson, Arnar Geirsson, Gudmundur Thorgeirsson, Tomas Gudbjartsson
OBJECTIVES: In a nationwide cohort, we analyzed long-term outcome following coronary artery bypass grafting, using the combined strategy of left internal mammary artery to the left anterior descending artery and saphenous vein as secondary graft to other coronary targets. METHODS: 1,507 consecutive patients that underwent myocardial revascularization during 2001-2012 in Iceland. Mean follow-up was 6.8 years. Major adverse cardiac and cerebrovascular events were depicted using the Kaplan-Meier method...
December 2017: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/28804239/iatrogenic-great-cardiac-vein-anastomosis-during-coronary-artery-bypass-surgery
#20
Alireza Bagherli, Hilary Bews, Minh Vo, John Ducas, Davinder S Jassal, Amir Ravandi
Inadvertent anastomosis of the left internal mammary artery (LIMA) or a saphenous vein graft (SVG) to the great cardiac vein (GCV) is a rare complication of coronary artery bypass grafting (CABG). We present two cases with a LIMA to GCV and a SVG to GCV anastomosis, respectively, resulting in angina and dyspnea in the postoperative state. As an alternative to repeat CABG, both patients underwent percutaneous coronary intervention with percutaneous coil embolization or implantation of an Amplatzer vascular plug within the bypass graft to GCV conduit...
September 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
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