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Multiple coronary artery perforation following global pericardial tamponade in a patient with prior coronary artery bypass graft surgery: a case report.

ABSTRACT: Background:Patients who undergo coronary artery bypass graft (CABG) surgery rarely develop global pericardial tamponade due to pericardial adhesions. There are no reports of multiple coronary artery perforations following global pericardial tamponade during percutaneous coronary intervention (PCI) in these patients. Case summary:A 52-year-old male who underwent CABG surgery developed effort angina pectoris. Coronary angiography demonstrated chronic total occlusion (CTO) of the first diagonal branch with severe stenosis of the second diagonal branch. Because his chest pain did not improve with medical therapy and ischaemia of the left ventricular anterolateral wall was confirmed by myocardial scintigraphy, PCI was performed. The second diagonal branch stenosis was passed anterogradely by a 0.014-inch coronary angioplasty guidewire, while the first diagonal branch CTO was recanalized by side-branch intravascular ultrasonography-guided parallel wiring. After stent deployment, coronary artery perforation at the distal end of the second diagonal branch was detected via contrast injection. We immediately performed intravascular haemostasis, leading to the disappearance of contrast. However, multiple bleeding sites were visualized by angiography at different sites of coronary arteries, including the circumflex artery. Although intravascular haemostasis is a standard procedure, we could not control rebleeding. Despite intensive care, the patient died. Discussion:Increased tissue pressure due to bleeding possibly led to global pericardial tamponade with multiple coronary artery perforations. We report a rare case of a patient with multiple coronary artery perforations during coronary intervention.

SUBMITTER: Yamada T

PROVIDER: S-EPMC8669552 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:Diabetes Mellitus (DM) accelerates coronary artery disease (CAD) and atherosclerosis, the causes of most heart attacks. The biomolecules involved in these inter-related disease processes are not well understood. This study analyzes biomolecules in the sera of patients with CAD, with and without type (T) 2DM, who are about to undergo coronary artery bypass graft (CABG) surgery. The goal is to develop methodology to help identify and monitor CAD patients with and without T2DM, in order to better understand these phenotypes and to glean relationships through analysis of serum biomolecules. Aorta, fat, muscle, and vein tissues from CAD T2DM patients display diabetic-related histologic changes (e.g., lipid accumulation, fibrosis, loss of cellularity) when compared to non-diabetic CAD patients. The patient discriminatory methodology utilized is serum biomolecule mass profiling. This mass spectrometry (MS) approach is able to distinguish the sera of a group of CAD patients from controls (p value 10-15), with the CAD group containing both T2DM and non-diabetic patients. This result indicates the T2DM phenotype does not interfere appreciably with the CAD determination versus control individuals. Sera from a group of T2DM CAD patients however are distinguishable from non-T2DM CAD patients (p value 10-8), indicating it may be possible to examine the T2DM phenotype within the CAD disease state with this MS methodology. The same serum samples used in the CAD T2DM versus non-T2DM binary group comparison were subjected to MS/MS peptide structure analysis to help identify potential biochemical and phenotypic changes associated with CAD and T2DM. Such peptide/protein identifications could lead to improved understanding of underlying mechanisms, additional biomarkers for discriminating and monitoring these disease conditions, and potential therapeutic targets. Bioinformatics/systems biology analysis of the peptide/protein changes associated with CAD and T2DM suggested cell pathways/systems affected include atherosclerosis, DM, fibrosis, lipogenesis, loss of cellularity (apoptosis), and inflammation.

Project description:BackgroundThe actual patency rate of the radial artery (RA) grafts 1 week and 1 year after coronary artery bypass grafting (CABG) has not been extensively reported on. We used coronary computed tomography angiography (CCTA) to evaluate the patency rate of RA grafts and compared it with that of saphenous vein (SV) grafts.MethodsIn this observational cohort study, 80 patients who underwent urgent or elective CABG with RA and SV grafts at Ruijin Hospital from August 2019 to June 2021 were included. Follow-up CCTA scans were completed about 1 year postoperation in the out-patient clinic. We graded the grafts into four classes: A, excellent; B, graft diameter <50% of target coronary artery; O, occluded; and S, string sign. Both S and O were defined as graft failure.ResultsThe patients' mean age was 58.48±8.06 years, and 87.5% (70/80) of the patients were male. The 1-week patency rate of the left internal mammary artery (LIMA), RA, and SV grafts were 98.7% (75/76), 76.3% (61/80), and 93.8% (75/80), respectively. At 1 year, the patency rate of the LIMA, RA, and SV grafts were 97.4% (74/76), 80.0% (64/80), and 81.3% (65/80), respectively. The RA graft patency rate was lower than was the SV graft patency rate perioperatively [relative risk (RR): 0.918; 95% confidence interval (CI): 0.852-0.990; P=0.007]. Moreover, 63.6% (7/11) of RA grafts graded S and 25.0% (2/8) of RA grafts graded O were defined as patent (graded A or B) at 1 year postoperation. Compared with SV grafts, more RA grafts improved (RA: 12/80, 15.0%; SV: 0%) and fewer RA grafts deteriorated (RV: 10/80, 12.5%; SV: 19/80, 23.8%) from 1 week to 1 year (P=0.001). The patency rate of the 2 types of grafts became similar at 1 year postoperation (RR: 0.560; 95% CI: 0.113-2.781; P>0.99).ConclusionsRA grafts had a lower patency rate than did SV grafts 1 week after operation. However, because of the "revival" phenomena and lower attrition rate, the patency rate of the two kinds of grafts did not show any significant difference at 1 year.

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Multiple coronary artery perforation following global pericardial tamponade in a patient with prior coronary artery bypass graft surgery: a case report.

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