Displaying publications 1 - 20 of 58 in total

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  1. Raffali MAA, Azmi MI, Muhammad SF, Che Hassan HH
    BMJ Case Rep, 2024 Apr 29;17(4).
    PMID: 38684352 DOI: 10.1136/bcr-2024-260649
    A man in his 20s with no medical illness sustained a blunt chest injury with pneumothorax and lung contusion after involving in a motorbike accident. Five days postadmission, he subsequently had myocardial infarction with cardiac arrest, in which coronary angiogram and intravascular ultrasound showed diffused multivessel coronary artery dissection.
    Matched MeSH terms: Coronary Vessels/injuries
  2. Ding CCA, Dokos S, Bakir AA, Zamberi NJ, Liew YM, Chan BT, et al.
    Biomed Eng Online, 2024 Feb 22;23(1):24.
    PMID: 38388416 DOI: 10.1186/s12938-024-01206-2
    Aortic stenosis, hypertension, and left ventricular hypertrophy often coexist in the elderly, causing a detrimental mismatch in coupling between the heart and vasculature known as ventricular-vascular (VA) coupling. Impaired left VA coupling, a critical aspect of cardiovascular dysfunction in aging and disease, poses significant challenges for optimal cardiovascular performance. This systematic review aims to assess the impact of simulating and studying this coupling through computational models. By conducting a comprehensive analysis of 34 relevant articles obtained from esteemed databases such as Web of Science, Scopus, and PubMed until July 14, 2022, we explore various modeling techniques and simulation approaches employed to unravel the complex mechanisms underlying this impairment. Our review highlights the essential role of computational models in providing detailed insights beyond clinical observations, enabling a deeper understanding of the cardiovascular system. By elucidating the existing models of the heart (3D, 2D, and 0D), cardiac valves, and blood vessels (3D, 1D, and 0D), as well as discussing mechanical boundary conditions, model parameterization and validation, coupling approaches, computer resources and diverse applications, we establish a comprehensive overview of the field. The descriptions as well as the pros and cons on the choices of different dimensionality in heart, valve, and circulation are provided. Crucially, we emphasize the significance of evaluating heart-vessel interaction in pathological conditions and propose future research directions, such as the development of fully coupled personalized multidimensional models, integration of deep learning techniques, and comprehensive assessment of confounding effects on biomarkers.
    Matched MeSH terms: Coronary Vessels
  3. Colangelo LA, Carroll AJ, Perak AM, Gidding SS, Lima JAC, Lloyd-Jones DM
    Psychosom Med, 2024 01 09;86(2):60-71.
    PMID: 38193784 DOI: 10.1097/PSY.0000000000001277
    OBJECTIVE: Depression is a risk factor for coronary heart disease and left ventricular hypertrophy (LVH) is a potent predictor of coronary heart disease events. Whether depression is associated with LVH has received limited investigation. This study assessed cross-sectional and 20-year longitudinal associations of depressive symptoms with LVH outcomes after accounting for important known confounders.

    METHODS: From 5115 participants enrolled in 1985-1986 in the Coronary Artery Risk Development in Young Adults Study, 2533 had serial measures of depressive symptoms and subsequent echocardiography to measure normal LV geometry, concentric remodeling, and LVH. The primary exposure variable was trajectories of the Center for Epidemiologic Studies Depression (CES-D) scale score from 1990-1991 to 2010-2011. Multivariable polytomous logistic regression was used to assess associations of trajectories with a composite LV geometry outcome created using echocardiogram data measured in 2010-2011 and 2015-2016. Sex-specific conflicting results led to exploratory models that examined potential importance of testosterone and sex hormone-binding globulin.

    RESULTS: Overall CES-D and Somatic subscale trajectories had significant associations with LVH for female participants only. Odds ratios for the subthreshold (mean CES-D ≈ 14) and stable (mean CES-D ≈ 19) groups were 1.49 (95% confidence interval = 1.05-2.13) and 1.88 (95% confidence interval = 1.16-3.04), respectively. For female participants, sex hormone-binding globulin was inversely associated with LVH, and for male participants, bioavailable testosterone was positively associated with concentric geometry.

    CONCLUSIONS: Findings from cross-sectional and longitudinal regression models for female participants, but not male ones, and particularly for Somatic subscale trajectories suggested a plausible link among depression, androgens, and LVH. The role of androgens to the depression-LVH relation requires additional investigation in future studies.

    Matched MeSH terms: Coronary Vessels
  4. Azmi MI, Nair AK, Hashim SA
    Innovations (Phila), 2024;19(2):175-183.
    PMID: 38577864 DOI: 10.1177/15569845241238999
    OBJECTIVE: We evaluated the effectiveness of a consistent and structured self-practice coronary anastomosis program using a homemade low-fidelity beating-heart simulator.

    METHODS: An intermediary trainee was subjected to an 8-week structured self-practice program. The program was divided into 2 parts of nonbeating and beating practices with a minimum number of timed anastomoses. Each part was followed by an assessment using an objective skills assessment tool score. The beating-heart simulator was built using motorized toy blocks connected wirelessly to a smartphone application. This was coded to enable rate selection. A junior consultant was compared to the subject at the end of the program. Both were tasked to perform 1 coronary anastomosis for both off-pump coronary artery bypass (OPCAB) and minimally invasive CAB (MICS) setup. The primary outcomes were anastomotic time and score compared with the junior consultant. Secondary outcomes were progression of anastomotic time and score throughout the program.

    RESULTS: Overall performance of the studied subject approached the performance of the junior consultant in terms of time (OPCAB, 489 vs 605 s; MICS, 712 vs 652 s) and scores (OPCAB, 21 vs 20.7; MICS, 19 vs 20.6). There were inverse correlations between anastomosis time and number of practices for both nonbeating and beating anastomoses. Overall improvement was observed in terms of assessment scoring by 26.6%.

    CONCLUSIONS: A structured self-practice program using an affordable and accessible simulator was able to help trainees overcome the MICS anastomosis learning curve quicker when introduced earlier. This may encourage earlier adoption of MICS among surgeons.

    Matched MeSH terms: Coronary Vessels/surgery
  5. Kim K, Yaffe K, Rehkopf DH, Zheng Y, Nannini DR, Perak AM, et al.
    JAMA Netw Open, 2023 Jun 01;6(6):e2317987.
    PMID: 37306997 DOI: 10.1001/jamanetworkopen.2023.17987
    IMPORTANCE: Adverse childhood experiences (ACEs) are associated with the risk of poorer health, and identifying molecular mechanisms may lay the foundation for health promotion in people with ACEs.

    OBJECTIVE: To investigate the associations of ACEs with changes in epigenetic age acceleration (EAA), a biomarker associated with various health outcomes in middle-aged adults, in a population with balanced race and sex demographics.

    DESIGN, SETTING, AND PARTICIPANTS: Data for this cohort study were from the Coronary Artery Risk Development in Young Adults (CARDIA) study. Participants in CARDIA underwent 8 follow-up exams from baseline (year 0 [Y0]; 1985-1986) to Y30 (2015-2016), and participant blood DNA methylation information was obtained at Y15 (2000-2001) and Y20 (2005-2006). Individuals from Y15 and Y20 with available DNA methylation data and complete variables for ACEs and covariates were included. Data were analyzed from September 2021 to August 2022.

    EXPOSURES: Participant ACEs (general negligence, emotional negligence, physical violence, physical negligence, household substance abuse, verbal and emotional abuse, and household dysfunction) were obtained at Y15.

    MAIN OUTCOMES AND MEASURES: The primary outcome consisted of results from 5 DNA methylation-based EAA measurements known to be associated with biological aging and long-term health: intrinsic EAA (IEAA), extrinsic EAA (EEAA), PhenoAge acceleration (PhenoAA), GrimAge acceleration (GrimAA), and Dunedin Pace of Aging Calculated From the Epigenome (DunedinPACE), measured at Y15 and Y20. Linear regression and generalized estimating equations were used to assess associations of the burden of ACEs (≥4 vs <4 ACEs) with EAA adjusting for demographics, health-related behaviors, and early life and adult socioeconomic status.

    RESULTS: A total of 895 participants for Y15 (mean [SD] age, 40.4 [3.5] years; 450 males [50.3%] and 445 females [49.7%]; 319 Black [35.6%] and 576 White [64.4%]) and 867 participants for Y20 (mean [SD] age, 45.4 [3.5] years; 432 males [49.8%] and 435 females [50.2%]; 306 Black [35.3%] and 561 White [64.7%]) were included after excluding participants with missing data. There were 185 participants with (20.7%) vs 710 participants without (79.3%) 4 or more ACEs at Y15 and 179 participants with (20.6%) vs 688 participants without (79.4%) 4 or more ACEs at Y20. Having 4 or more ACEs was positively associated with EAA in years at Y15 (EEAA: β = 0.60 years; 95% CI, 0.18-1.02 years; PhenoAA: β = 0.62 years; 95% CI = 0.13-1.11 years; GrimAA: β = 0.71 years; 95% CI, 0.42-1.00 years; DunedinPACE: β = 0.01; 95% CI, 0.01-0.02) and Y20 (IEAA: β = 0.41 years; 95% CI, 0.05-0.77 years; EEAA: β = 1.05 years; 95% CI, 0.66-1.44 years; PhenoAA: β = 0.57 years; 95% CI, 0.08-1.05 years; GrimAA: β = 0.57 years; 95% CI, 0.28-0.87 years; DunedinPACE: β = 0.01; 95% CI, 0.01-0.02) after adjusting for demographics, health-related behaviors, and socioeconomic status.

    CONCLUSIONS AND RELEVANCE: In this cohort study, ACEs were associated with EAA among middle-aged adults after controlling for demographics, behavior, and socioeconomic status. These findings of the associations between early life experience and the biological aging process in midlife may contribute to health promotion in a life course perspective.

    Matched MeSH terms: Coronary Vessels
  6. Sun Z, Ng CKC, Wong YH, Yeong CH
    Biomolecules, 2021 09 03;11(9).
    PMID: 34572520 DOI: 10.3390/biom11091307
    The diagnostic value of coronary computed tomography angiography (CCTA) is significantly affected by high calcification in the coronary arteries owing to blooming artifacts limiting its accuracy in assessing the calcified plaques. This study aimed to simulate highly calcified plaques in 3D-printed coronary models. A combination of silicone + 32.8% calcium carbonate was found to produce 800 HU, representing extensive calcification. Six patient-specific coronary artery models were printed using the photosensitive polyurethane resin and a total of 22 calcified plaques with diameters ranging from 1 to 4 mm were inserted into different segments of these 3D-printed coronary models. The coronary models were scanned on a 192-slice CT scanner with 70 kV, pitch of 1.4, and slice thickness of 1 mm. Plaque attenuation was measured between 1100 and 1400 HU. Both maximum-intensity projection (MIP) and volume rendering (VR) images (wide and narrow window widths) were generated for measuring the diameters of these calcified plaques. An overestimation of plaque diameters was noticed on both MIP and VR images, with measurements on the MIP images close to those of the actual plaque sizes (<10% deviation), and a large measurement discrepancy observed on the VR images (up to 50% overestimation). This study proves the feasibility of simulating extensive calcification in coronary arteries using a 3D printing technique to develop calcified plaques and generate 3D-printed coronary models.
    Matched MeSH terms: Coronary Vessels/pathology*
  7. Perak AM, Khan SS, Colangelo LA, Gidding SS, Armstrong AC, Lewis CE, et al.
    J Am Soc Echocardiogr, 2021 04;34(4):388-400.
    PMID: 33212181 DOI: 10.1016/j.echo.2020.11.002
    BACKGROUND: Little is known about the timing of preclinical heart failure (HF) development, particularly among blacks. The primary aims of this study were to delineate age-related left ventricular (LV) structure and function evolution in a biracial cohort and to test the hypothesis that young-adult LV parameters within normative ranges would be associated with incident stage B-defining LV abnormalities over 25 years, independent of cumulative risk factor burden.

    METHODS: Data from the Coronary Artery Risk Development in Young Adults study were analyzed. Participants (n = 2,833) had a mean baseline age of 30.1 years; 45% were black, and 56% were women. Generalized estimating equation logistic regression was used to estimate age-related probabilities of stage B LV abnormalities (remodeling, hypertrophy, or dysfunction) and logistic regression to examine risk factor-adjusted associations between baseline LV parameters and incident abnormalities. Cox regression was used to assess whether baseline LV parameters associated with incident stage B LV abnormalities were also associated with incident clinical (stage C/D) HF events over >25 years' follow-up.

    RESULTS: Probabilities of stage B LV abnormalities at ages 25 and 60 years were 10.5% (95% CI, 9.4%-11.8%) and 45.0% (95% CI, 42.0%-48.1%), with significant race-sex disparities (e.g., at age 60, black men 52.7% [95% CI, 44.9%-60.3%], black women 59.4% [95% CI, 53.6%-65.0%], white men 39.1% [95% CI, 33.4%-45.0%], and white women 39.1% [95% CI, 33.9%-44.6%]). Over 25 years, baseline LV end-systolic dimension indexed to height was associated with incident systolic dysfunction (adjusted odds ratio per 1 SD higher, 2.56; 95% CI, 1.87-3.52), eccentric hypertrophy (1.34; 95% CI, 1.02-1.75), concentric hypertrophy (0.69; 95% CI, 0.51-0.91), and concentric remodeling (0.68; 95% CI, 0.58-0.79); baseline LV mass indexed to height2.7 was associated with incident eccentric hypertrophy (1.70; 95% CI, 1.25-2.32]), concentric hypertrophy (1.63; 95% CI, 1.19-2.24), and diastolic dysfunction (1.24; 95% CI, 1.01-1.52). Among the entire cohort with baseline echocardiographic data available (n = 4,097; 72 HF events), LV end-systolic dimension indexed to height and LV mass indexed to height2.7 were significantly associated with incident clinical HF (adjusted hazard ratios per 1 SD higher, 1.56 [95% CI, 1.26-1.93] and 1.42 [95% CI, 1.14-1.75], respectively).

    CONCLUSIONS: Stage B LV abnormalities and related racial disparities were present in young adulthood, increased with age, and were associated with baseline variation in indexed LV end-systolic dimension and mass. Baseline indexed LV end-systolic dimension and mass were also associated with incident clinical HF. Efforts to prevent the LV abnormalities underlying clinical HF should start from a young age.

    Matched MeSH terms: Coronary Vessels
  8. Mohd Idrus FN, Ahmad NS, Hoe CH, Azlan M, Norfuad FA, Yusof Z, et al.
    BMC Immunol, 2021 03 24;22(1):21.
    PMID: 33761885 DOI: 10.1186/s12865-021-00410-2
    BACKGROUND: Differential polarization of macrophage into M1 and M2 mediates atherosclerotic plaque clearance through efferocytosis. Higher expression of Mer proto-oncogene tyrosine kinase (MerTK) on M2 macrophage helps in maintaining macrophage efferocytic efficiency. In healthy individuals, macrophage polarization into M1 and M2 occurs in tissues in concomitance with the acquisition of functional phenotypes depending on specific microenvironment stimuli. However, whether the macrophage differential polarization and MerTK expression vary in coronary artery disease (CAD) patients remain unknown.

    OBJECTIVE: This study aimed to elucidate the polarization of M1 and M2 macrophage from CAD patients as well as to investigate the expression of MerTK in these macrophage phenotypes.

    METHODS: A total of 14 (n) CAD patients were recruited and subsequently grouped into "no apparent CAD", "non-obstructive CAD" and "obstructive CAD" according to the degree of stenosis. Thirty ml of venous blood was withdrawn to obtain monocyte from the patients. The M1 macrophage was generated by treating the monocyte with GMCSF, LPS and IFN-γ while MCSF, IL-4 and IL-13 were employed to differentiate monocyte into M2 macrophage. After 7 days of polarization, analysis of cell surface differentiation markers (CD86+/CD80+ for M1 and CD206+/CD200R+ for M2) and measurement of MerTK expression were performed using flow cytometry.

    RESULTS: Both M1 and M2 macrophage expressed similar level of CD86, CD80 and CD206 in all groups of CAD patients. MerTK expression in no apparent CAD patients was significantly higher in M2 macrophage compared to M1 macrophage [12.58 ± 4.40 vs. 6.58 ± 1.37, p = 0.040].

    CONCLUSION: Differential polarization of macrophage into M1 and M2 was highly dynamic and can be varied due to the microenvironment stimuli in atherosclerotic plaque. Besides, higher expression of MerTK in patients with the least coronary obstructive suggest its vital involvement in efferocytosis.

    Matched MeSH terms: Coronary Vessels/pathology*
  9. Alghrairi M, Sulaiman N, Mutashar S
    Sensors (Basel), 2020 Aug 01;20(15).
    PMID: 32752231 DOI: 10.3390/s20154303
    In-stent restenosis concerning the coronary artery refers to the blood clotting-caused re-narrowing of the blocked section of the artery, which is opened using a stent. The failure rate for stents is in the range of 10% to 15%, where they do not remain open, thereby leading to about 40% of the patients with stent implantations requiring repeat procedure within one year, despite increased risk factors and the administration of expensive medicines. Hence, today stent restenosis is a significant cause of deaths globally. Monitoring and treatment matter a lot when it comes to early diagnosis and treatment. A review of the present stent monitoring technology as well as the practical treatment for addressing stent restenosis was conducted. The problems and challenges associated with current stent monitoring technology were illustrated, along with its typical applications. Brief suggestions were given and the progress of stent implants was discussed. It was revealed that prime requisites are needed to achieve good quality implanted stent devices in terms of their size, reliability, etc. This review would positively prompt researchers to augment their efforts towards the expansion of healthcare systems. Lastly, the challenges and concerns associated with nurturing a healthcare system were deliberated with meaningful evaluations.
    Matched MeSH terms: Coronary Vessels
  10. Ho HH, Sinaga DA, Arshad MKM, Kasim S, Lee JH, Khoo DZL, et al.
    Int J Cardiol Heart Vasc, 2020 Feb;26:100469.
    PMID: 32021903 DOI: 10.1016/j.ijcha.2020.100469
    Background: Amphilimus-eluting stent (AES) is a novel polymer-free drug eluting stent that combines sirolimus with fatty acid as antiproliferative drug and has shown promising results in percutaneous coronary intervention.We evaluated the clinical safety and efficacy of AES in an all-comers South-East Asian registry.

    Methods: Between May 2014 to April 2017, 268 patients (88% male, mean age 60.1 ± 10.8 years) with 291 coronary lesions were treated with AES. The primary endpoint was major adverse cardiac events (MACE) ie a composite of cardiovascular mortality, myocardial infarction (MI) and target lesion revascularization (TLR) at 12-month follow-up.

    Results: The majority of patients presented with acute coronary syndrome (75%) and 75% had multi-vessel disease on angiography. Diabetes mellitus was present in 123 patients (46%). The most common target vessel for PCI was left anterior descending artery (43%) followed by right coronary artery (36%), left circumflex (10%) and left main (6%).The majority of lesions were type B-C (85%) by ACC/AHA lesion classification. An average of 1.25 ± 0.5 AES were used per patient, with mean AES diameter of 3.1 ± 0.4 mm and average total length of 34.8 ± 19.4 mm.At 12-month follow-up, 4% of patients developed MACE. MACE was mainly driven by cardiovascular mortality (1.5%), MI (2%) and TLR (1.5%). The rate of stent thrombosis was 1.5%.

    Conclusion: In a contemporary all-comers South-East Asian registry with high rate of diabetes mellitus, AES was found to be efficacious with a low incidence of MACE observed at 12-month follow-up.

    Matched MeSH terms: Coronary Vessels
  11. Noor Alicezah Mohd Kasim, Chua Yung An, Hapizah Nawawi
    MyJurnal
    Familial hypercholesterolaemia (FH), the commonest and serious but potentially treatable
    form of inherited dyslipidaemias, is characterised by severely elevated plasma low-density
    lipoprotein-cholesterol (LDL-C) level, which subsequently leads to premature coronary artery
    disease (pCAD). Effectiveness of FH early detection and treatment is supported by the
    outcome of several international cohort studies. Optimal FH management relies on
    prescription of statins either alone or together with other lipid-lowering therapies (LLT).
    Intensive lifestyle intervention is required in parallel with LLT, which should be commenced at
    diagnosis in adults and childhood. Treatment with high intensity statin should be started as
    soon as possible. Combination with ezetimibe and/or bile acid sequestrants is indicated if
    target LDL-C is not achieved. For FH patients in the very-high risk category, if their LDL-C
    targets are not achieved, despite being on maximally tolerated statin dose and ezetimibe,
    proprotein convertase subtilisin/kexin type1 inhibitor (PCSK9i) is recommended. In statin
    intolerance, ezetimibe alone, or in combination with PCSK9i may be considered. Clinical
    evaluation of response to treatment and safety are recommended to be done about 4-6 weeks
    following initiation of treatment. Homozygous FH (HoFH) patients should be treated with
    maximally tolerated intensive LLT and, when available, with lipoprotein apheresis. This review
    highlights the overall management, and optimal treatment combinations in FH in adults and
    children, newer LLT including PCSK9i, microsomal transfer protein inhibitor, allele-specific
    oligonucleotide to ApoB100 and PCSK9 mRNA. Family cascade screening and/or screening
    of high-risk individuals, is the most cost-effective way of identifying FH cases and initiating
    early and adequate LLT.
    Matched MeSH terms: Coronary Vessels
  12. Shahril Shamsul, Akmal Sabarudin, Hamzaini Abdul Hamid, Norzailin Abu Bakar, Oteh Maskon, Muhammad Khalis Abdul Karim
    MyJurnal
    The purpose of this study was to evaluate the image quality and diagnostic accuracy of coronary computed tomography angiography (CCTA) using 640-slice scanner. Advancement of multidetector computed tomography (MDCT) technology with higher spatial, temporal resolution, and increasing detector array have improved the image quality and diagnostic accuracy of CCTA. A total of 25 patients (12 men and 13 women) underwent CCTA examination was chosen and data was acquired by 640-slice scanner. All 16 segments of coronary arteries were evaluated by two reviewers using a 4-likert scale for qualitative assessment. In quantitative assessment, the evaluation of 4 main coronary arteries were analysed in terms of signal intensity (SI), image noise, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR). All 25 patients with a mean age of 52.88 ± 14.75 years old and body mass index (BMI) of 24.24 ± 3.28 kg/m2 were analysed. In qualitative assessment, from the total of 400 segments, 379 segments (95%) had diagnostic value while 21 segments did not have diagnostic value, which means 5% artefact was detected. In quantitative assessment, there was no statistical differences in gender, race, and BMI (p>0.05). Overall evaluation showed that higher SI at the left main artery (LM) at 393.7 ± 47.19. Image noise was higher at right coronary artery (RCA) at 39.01 ± 13.97. SNR and CNR showed higher at left anterior descending (LAD) with 12.73 ± 5.17 and LM 9.14 ± 4.2, respectively. In conclusion, this study indicates that 640-slice MDCT has higher diagnostic value in CCTA examination with 95% vessel visibility with 5% artefact detection.
    Matched MeSH terms: Coronary Vessels
  13. Gurpreet S, Vendargon SJ, Syed Rasul SH
    Med J Malaysia, 2019 12;74(6):549-550.
    PMID: 31929487
    We understand that autoimmune disorders such as Systemic Lupus Erythematosus increases the likelihood of developing coronary heart disease. However, its implications on patients undergoing cardiac surgery is not well understood. Here we present a female patient with SLE who developed coronary artery disease at a young age and underwent coronary artery bypass graft surgery. As SLE is associated with vasculitis, we wanted to understand regarding the choice of conduit as well as its long term patency. Also whether percutaneous angioplasty has a role to play in patients with SLE.
    Matched MeSH terms: Coronary Vessels/physiopathology*; Coronary Vessels/surgery
  14. Anwar A, Chan KMJ, Awang Y, Ping DC
    Med J Malaysia, 2019 Oct;74(5):436-438.
    PMID: 31649223
    Anomalous Aortic Origin of a Coronary Artery (AAOCA) is a rare anomaly of the coronary artery with a considerable risk of sudden cardiac death due to ischaemia of the heart. Symptoms may include chest pain on exertion, breathlessness or dizziness. We encountered a case of a 46- year-old female who complained of exertional chest pain with a positive-stress test and subsequently diagnosed with AAOCA through CT angiography (CTA). She successfully underwent a coronary artery bypass graft (CABG) surgery using a saphenous vein graft with uneventful recovery. Right internal mammary artery (RIMA) was not used as it was flimsy and the flow was very poor.
    Matched MeSH terms: Coronary Vessels
  15. Shetty P, Nayak SB
    Anat Cell Biol, 2019 Sep;52(3):340-343.
    PMID: 31598365 DOI: 10.5115/acb.19.018
    We present a unique, unreported variation of the left coronary artery. During dissection classes for first-year medical students, we observed the absence of left coronary artery in an adult male cadaver aged approximately 78 years. The left aortic sinus was dilated and it gave origin to anterior interventricular and left marginal arteries independently. Left marginal artery was large and the circumflex artery arose from it. There were two independent opening for anterior interventricular and left marginal arteries in the left posterior aortic sinus. No variations were found in the origin and branching pattern of right coronary artery and the walls and chambers of the heart.
    Matched MeSH terms: Coronary Vessels
  16. Ab Hamid S, Joshi S
    Oxf Med Case Reports, 2019 Apr;2019(4):omy137.
    PMID: 31049209 DOI: 10.1093/omcr/omy137
    Giant coronary artery aneurysms are rare, with reported incidence of 0.02-0.2% (Morita H, Ozawa H, Yamazaki S, Yamauchi Y, Tsuji M, Katsumata T, et al. A case of giant coronary artery aneurysm with fistulous connection to the pulmonary artery: a case report and review of the literature. Intern Med. 2012; 51:1361-6.). Multiple giant aneurysms involving all three coronary arteries are even rarer. We report a rare case of multiple giant aneurysms involving the right coronary, left anterior descending and left circumflex arteries, supplemented with excellent multimodality imaging representations, i.e. plain radiograph, echocardiography, magnetic resonance imaging and computed tomography coronary angiogram.
    Matched MeSH terms: Coronary Vessels
  17. Topchii II, Kirienko AN, Kirienko DA, Yakovtsova II, Gavriluk AA, Danyliuk SV, et al.
    Wiad Lek, 2019;72(7):1269-1273.
    PMID: 31398154
    OBJECTIVE: Introduction: Vascular endothelium function interruption has the main role among mechanisms of development and progression of chronic kidney disease. In numerous experimental and clinical studies, it was proved that activated vascular endothelium is a structural and functional unit that matches processes of inflammation with intravascular coagulation, fibrinolysis and haemorheological disorders. The aim: To identify special features of endothelium morphological structure in kidney vessels, coronary arteries and aorta during chronic kidney disease.

    PATIENTS AND METHODS: Materials and methods: Based on autopsy materials, we conducted a morphological study of patients (n = 20) aged 45 to 55 years who were observed in cardiac and neurological hospitals for 5-7 years. We removed kidney, heart and aorta samples from patients. For the study, a histological and immunohistochemical methods were used.

    RESULTS: Results and conclusions: Morphological study of vessels endothelium of kidneys, heart and aorta demonstrated that in the majority of observations intima underwentprofound pathological changes, manifested by different degrees of disorganization of endothelial lining and violations of structural and functional organization of the endotheliocytes, subendothelial layer, basal membrane. These pathological processes in all cases had similar features with the development of immune inflammation. Inflammatory infiltration was represented by macrophages, mast cells, plasma cells. Biological mediators of the presented cells can aggravate the damage to endothelial cells. Indirect signs of low ability to restore the structure of the vessel wall and endothelial lining may be a weak expression of the VEGF and bcl-2 vascular endothelial growth factor.

    Matched MeSH terms: Coronary Vessels*
  18. Rosenberg M, Waliszewski M, Krackhardt F, Chin K, Wan Ahmad WA, Caramanno G, et al.
    J Interv Cardiol, 2019;2019:6548696.
    PMID: 31772539 DOI: 10.1155/2019/6548696
    Objectives: We analyzed the efficacy of drug coated balloons (DCB) as a stand-alone-therapy in de novo lesions of large coronary arteries. DCBs seem to be an attractive alternative for the stent-free interventional treatment of de novo coronary artery disease (CAD). However, data regarding a DCB-only approach in de novo CAD are currently limited to vessels of small caliber.

    Methods: By means of propensity score (PS) matching 234 individuals with de novo CAD were identified with similar demographic characteristics. This patient population was stratified in a 1:1 fashion according to a reference vessel diameter cut-off of 2.75 mm in small and large vessel disease. The primary endpoint was the rate of clinically driven target lesion revascularization (TLR) at 9 months.

    Results: Patients with small vessel disease had an average reference diameter of 2.45 ± 0.23 mm, while the large vessel group averaged 3.16 ± 0.27 mm. Regarding 9-month major adverse cardiac event (MACE), 5.7% of the patients with small and 6.1% of the patients with large vessels had MACE (p=0.903). Analysis of the individual MACE components revealed a TLR rate of 3.8% in small and 1.0% in large vessels (p=0.200). Of note, no thrombotic events in the DCB treated coronary segments occurred in either group during the 9-month follow-up.

    Conclusions: Our data demonstrate for the first time that DCB-only PCI of de novo lesions in large coronary arteries (>2.75 mm) is safe and as effective. Interventional treatment for CAD without permanent or temporary scaffolding, demonstrated a similar efficacy for large and small vessels.

    Matched MeSH terms: Coronary Vessels/pathology
  19. Krishnan GD, Yahaya N, Yahya M
    J ASEAN Fed Endocr Soc, 2019;34(1):92-94.
    PMID: 33442142 DOI: 10.15605/jafes.034.01.14
    A 31-year-old male, apparently well, presented with typical chest pain. His ECG showed ST-elevation from V1-V4 and echocardiogram revealed anteroseptal wall hypokinesia with ejection fraction of 45%. Normal coronary arteries were seen on coronary angiogram. A thyroid function test showed elevated free T4 levels with suppressed thyroid stimulating hormone (TSH). Treatment with thionamides and beta-blockers improved symptoms. Upon review 4 months later he was well. Repeat echocardiogram showed good ejection fraction with no hypokinetic area.
    Matched MeSH terms: Coronary Vessels
  20. Leenders GE, Liew HB, Stella PR
    Cardiovasc Revasc Med, 2018 12;19(8S):58-59.
    PMID: 30115559 DOI: 10.1016/j.carrev.2018.03.016
    A 62-year old male underwent treatment of a bifurcation lesion in the left anterior descending coronary artery using provisional stenting with a jailed wire technique. Severe longitudinal stent deformation and unravelment of the stent part proximal of the bifurcation occurred when we tried to pull the jailed wire from the side branch. The described case poses a caution on the use of this specific stent(-design) in bifurcation lesions.
    Matched MeSH terms: Coronary Vessels/surgery*
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