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Kim K, Song SH, Kim IJ, Jeon YK. Correction: Is dual-energy absorptiometry accurate in the assessment of bone status of patients with chronic kidney disease? Osteoporos Int 2023:10.1007/s00198-023-06834-3. [PMID: 37358609 DOI: 10.1007/s00198-023-06834-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
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Hoefges A, McIlwain SJ, Erbe AK, Mathers N, Xu A, Melby D, Tetreault K, Le T, Kim K, Pinapati RS, Garcia B, Patel J, Heck M, Feils AS, Tsarovsky N, Hank JA, Morris ZS, Ong IM, Sondel PM. Antibody landscape of C57BL/6 mice cured of B78 melanoma via immunotherapy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.24.529012. [PMID: 36896021 PMCID: PMC9996675 DOI: 10.1101/2023.02.24.529012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Abstract
Hoefges et al. utilized a whole-proteome peptide array approach to show that C57BL/6 mice develop a large repertoire of antibodies against linear peptide sequences of their melanoma after receiving a curative immunotherapy regimen consisting of radiation and an immunocytokine. Antibodies can play an important role in innate and adaptive immune responses against cancer, and in preventing infectious disease. Flow cytometry analysis of sera of immune mice that were previously cured of their melanoma through a combined immunotherapy regimen with long-term memory showed strong antibody-binding against melanoma tumor cell lines. Using a high-density whole-proteome peptide array, we assessed potential protein-targets for antibodies found in immune sera. Sera from 6 of these cured mice were analyzed with this high-density, whole-proteome peptide array to determine specific antibody-binding sites and their linear peptide sequence. We identified thousands of peptides that were targeted by 2 or more of these 6 mice and exhibited strong antibody binding only by immune, not naive sera. Confirmatory studies were done to validate these results using 2 separate ELISA-based systems. To the best of our knowledge, this is the first study of the "immunome" of protein-based epitopes that are recognized by immune sera from mice cured of cancer via immunotherapy.
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Ahn HS, Yeom J, Yu J, Oh Y, Hong J, Kim M, Kim K. Generating Detailed Spectral Libraries for Canine Proteomes Obtained from Serum and Urine. Sci Data 2023; 10:241. [PMID: 37105983 PMCID: PMC10140049 DOI: 10.1038/s41597-023-02139-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
Domestic dogs (Canis lupus familiaris) are popular companion animals. Increase in medical expenses associated with them and demand for extending their lifespan in a healthy manner has created the need to develop new diagnostic technology. Companion dogs also serve as important animal models for non-clinical research as they can provide various biological phenotypes. Proteomics have been increasingly used on dogs and humans to identify novel biomarkers of various diseases. Despite the growing applications of proteomics in liquid biopsy in veterinary medicine, no publicly available spectral assay libraries have been created for the proteome of canine serum and urine. In this study, we generated spectral assay libraries for the two-representative liquid-biopsy samples using mid-pH fractionation that allows in-depth understanding of proteome coverage. The resultant canine serum and urine spectral assay libraries include 1,132 and 4,749 protein groups and 5,483 and 25,228 peptides, respectively. We built these complimentary accessible resources for proteomic biomarker discovery studies through ProteomeXchange with the identifier PXD034770.
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Kim K. Prescription of Aceis and Arbs on an Individualized Basis for Patients with Acute Myocardial Infarction. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Kim E, Kim K, Park S, Youn J. Real-World Eligibility and Cost-Effectiveness Analysis for Empagliflozin in Patients with Heart Failure. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Aoki H, Kawataki M, Kim K, Saito T, Inagaki Y, Shimokaze T, Ishikawa H, Toyoshima K. Reopening of ductus arteriosus in idiopathic premature constriction or closure of ductus arteriosus: A case series. J Neonatal Perinatal Med 2023; 16:75-80. [PMID: 36872790 DOI: 10.3233/npm-221013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
BACKGROUND There is no consensus on managing pregnancy when the fetus is diagnosed with idiopathic premature constriction or closure of the ductus arteriosus (PCDA). Knowing whether the ductus reopens is valuable information for managing idiopathic PCDA. We conducted a case-series study to investigate the natural perinatal course of idiopathic PCDA and examined factors associated with ductal reopening. METHODS We retrospectively collected information about the perinatal course and echocardiographic findings at our institution, which, on principle, does not determine delivery timing based on fetal echocardiographic results. We also examined perinatal factors related to the reopening of the ductus arteriosus. RESULTS Thirteen cases of idiopathic PCDA were included in the analysis. The ductus reopened in 38% of cases. Among cases diagnosed in < 37 weeks of gestation, 71% reopened, which was confirmed seven days after diagnosis (interquartile range 4-7). Diagnosis earlier in gestation was associated with ductal reopening (p = 0.006). Two cases (15%) developed persistent pulmonary hypertension. No fetal hydrops or death occurred. CONCLUSIONS The ductus is likely to reopen when prenatally diagnosed before 37 weeks gestation. There were no complications due to our pregnancy management policy. In idiopathic PCDA, especially if the prenatal diagnosis is made before 37 weeks of gestational age, continuing the pregnancy with careful monitoring of the fetus's well-being is recommended.
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Byun J, Kim Y, Seo J, Kim E, Kim K, Jo A, Lee W, Park B. Development and evaluation of photon-counting Cd 0.875Zn 0.125Te 0.98Se 0.02 detector for measuring bone mineral density. Phys Eng Sci Med 2023; 46:245-253. [PMID: 36592283 DOI: 10.1007/s13246-022-01213-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 12/21/2022] [Indexed: 01/03/2023]
Abstract
Cadmium zinc telluride (CZT) has been actively researched and developed by researchers in various fields. In medical applications, especially photon-counting, CZT enables improved image quality, multi-material decomposition, and improved dose efficiency. Moreover, band gap engineering and selenium addition on CZT improved electrical, spectroscopic and structural properties, thereby supporting performance of CZT as a photon-counting detector. In this study, it is shown that Cd0.875Zn0.125Te0.98Se0.02 (CZTS) shows sufficient performance without loss of detection efficiency. We carried out a study involving the application of this CZTS on calculating bone mineral density (BMD) values, because this application has a novelty of new material for BMD sensor which follows the CdTe- or CdZnTe- based BMD detector. Anatomical images from different energy bins contained different information of attenuation although the images were taken in the same region at the same time. Moreover, calculated BMD values had a proper tendency depending on the amount of bone in that region. The final BMD value was 1.1972 g/cm2, which is close to the real value of 1.2 g/cm2. The introduction with a bone filter and a smaller pixel size will improve the accuracy and precision of photon-counting CZTS detectors for measuring BMD values. However, in this study the CZTS showed the feasibility that a photon-counting CZTS detector can help the measurement of BMD values and the diagnosis of osteoporosis.
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Patetta M, Kim K, Commander C, Bream P. Abstract No. 175 Weighted Tip Extensions Result in Fewer GJ Tube Migrations. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023] Open
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Jang YO, Ahn HS, Dao TNT, Hong J, Shin W, Lim YM, Chung SJ, Lee JH, Liu H, Koo B, Kim MG, Kim K, Lee EJ, Shin Y. Magnetic transferrin nanoparticles (MTNs) assay as a novel isolation approach for exosomal biomarkers in neurological diseases. Biomater Res 2023; 27:12. [PMID: 36797805 PMCID: PMC9936675 DOI: 10.1186/s40824-023-00353-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 02/05/2023] [Indexed: 02/18/2023] Open
Abstract
BACKGROUND Brain-derived exosomes released into the blood are considered a liquid biopsy to investigate the pathophysiological state, reflecting the aberrant heterogeneous pathways of pathological progression of the brain in neurological diseases. Brain-derived blood exosomes provide promising prospects for the diagnosis of neurological diseases, with exciting possibilities for the early and sensitive diagnosis of such diseases. However, the capability of traditional exosome isolation assays to specifically isolate blood exosomes and to characterize the brain-derived blood exosomal proteins by high-throughput proteomics for clinical specimens from patients with neurological diseases cannot be assured. We report a magnetic transferrin nanoparticles (MTNs) assay, which combined transferrin and magnetic nanoparticles to isolate brain-derived blood exosomes from clinical samples. METHODS The principle of the MTNs assay is a ligand-receptor interaction through transferrin on MTNs and transferrin receptor on exosomes, and electrostatic interaction via positively charged MTNs and negatively charged exosomes to isolate brain-derived blood exosomes. In addition, the MTNs assay is simple and rapid (< 35 min) and does not require any large instrument. We confirmed that the MTNs assay accurately and efficiently isolated exosomes from serum samples of humans with neurodegenerative diseases, such as dementia, Parkinson's disease (PD), and multiple sclerosis (MS). Moreover, we isolated exosomes from serum samples of 30 patients with three distinct neurodegenerative diseases and performed unbiased proteomic analysis to explore the pilot value of brain-derived blood protein profiles as biomarkers. RESULTS Using comparative statistical analysis, we found 21 candidate protein biomarkers that were significantly different among three groups of neurodegenerative diseases. CONCLUSION The MTNs assay is a convenient approach for the specific and affordable isolation of extracellular vesicles from body fluids for minimally-invasive diagnosis of neurological diseases.
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Lee J, Islam M, Yoo Y, Kim S, Kim R, Jang Y, Lee S, Hwang H, Shin H, Hwang J, Kim K, Park B, Ahn D, Lee Y, Kim T, Kim I, Yoon J, Tae H. Changes of antioxidant enzymes in the kidney after cardiac arrest in the rat model. Braz J Med Biol Res 2023; 56:e12408. [PMID: 36790289 PMCID: PMC9925192 DOI: 10.1590/1414-431x2023e12408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 01/03/2023] [Indexed: 02/12/2023] Open
Abstract
Globally, cardiac arrest (CA) is a leading cause of death and disability. Asphyxial CA (ACA)-induced kidney damage is a crucial factor in reducing the survival rate. The purpose of this study was to investigate the role of antioxidant enzymes in histopathological renal damage in an ACA rat model at different time points. A total of 88 rats were divided into five groups and exposed to ACA except for the sham group. To evaluate glomerular function and oxidative stress, serum levels of blood urea nitrogen (BUN) and creatinine (Crtn) and malondialdehyde (MDA) levels in renal tissues were measured. To determine histopathological damage, hematoxylin and eosin staining, periodic acid-Schiff staining, and Masson's trichrome staining were performed. Expression levels of antioxidant enzymes including superoxide dismutase-1 (SOD-1), superoxide dismutase-2 (SOD-2), catalase (CAT), and glutathione peroxidase (GPx) were measured by immunohistochemistry (IHC). Survival rate of the experimental rats was reduced to 80% at 6 h, 55% at 12 h, 42.9% at 1 day, and 33% at 2 days after return of spontaneous circulation. Levels of BUN, Crtn, and MDA started to increase significantly in the early period of CA induction. Renal histopathological damage increased markedly from 6 h until two days post-CA. Additionally, expression levels of antioxidant enzymes were significantly decreased at 6 h, 12 h, 1 day, and 2 days after CA. CA-induced oxidative stress and decreased levels of antioxidant enzymes (SOD-1, SOD-2, CAT, GPx) from 6 h to two days could be possible mediators of severe renal tissue damage and increased mortality rate.
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Jeon H, Byun J, Kang H, Kim K, Lee E, Kim JH, Hong CK, Song SW, Kim YH, Chong S, Kim JH, Nam SJ, Park JE, Lee S. Proteomic analysis predicts anti-angiogenic resistance in recurred glioblastoma. J Transl Med 2023; 21:69. [PMID: 36732815 PMCID: PMC9893563 DOI: 10.1186/s12967-023-03936-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 01/27/2023] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Recurrence is common in glioblastoma multiforme (GBM) because of the infiltrative, residual cells in the tumor margin. Standard therapy for GBM consists of surgical resection followed by chemotherapy and radiotherapy, but the median survival of GBM patients remains poor (~ 1.5 years). For recurrent GBM, anti-angiogenic treatment is one of the common treatment approaches. However, current anti-angiogenic treatment modalities are not satisfactory because of the resistance to anti-angiogenic agents in some patients. Therefore, we sought to identify novel prognostic biomarkers that can predict the therapeutic response to anti-angiogenic agents in patients with recurrent glioblastoma. METHODS We selected patients with recurrent GBM who were treated with anti-angiogenic agents and classified them into responders and non-responders to anti-angiogenic therapy. Then, we performed proteomic analysis using liquid-chromatography mass spectrometry (LC-MS) with formalin-fixed paraffin-embedded (FFPE) tissues obtained from surgical specimens. We conducted a gene-ontology (GO) analysis based on protein abundance in the responder and non-responder groups. Based on the LC-MS and GO analysis results, we identified potential predictive biomarkers for anti-angiogenic therapy and validated them in recurrent glioblastoma patients. RESULTS In the mass spectrometry-based approach, 4957 unique proteins were quantified with high confidence across clinical parameters. Unsupervised clustering analysis highlighted distinct proteomic patterns (n = 269 proteins) between responders and non-responders. The GO term enrichment analysis revealed a cluster of genes related to immune cell-related pathways (e.g., TMEM173, FADD, CD99) in the responder group, whereas the non-responder group had a high expression of genes related to nuclear replisome (POLD) and damaged DNA binding (ERCC2). Immunohistochemistry of these biomarkers showed that the expression levels of TMEM173 and FADD were significantly associated with the overall survival and progression-free survival of patients with recurrent GBM. CONCLUSIONS The candidate biomarkers identified in our protein analysis may be useful for predicting the clinical response to anti-angiogenic agents in patients with recurred GBM.
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Min K, Piao XM, Kim SK, Park SH, Kang H, Kim W, Kim K, Park H, Yun S. Bifidobacterium species BB_003 enhances antitumor immunity in patients with NMIBC and improve recurrence-free survival. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00656-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Hassan E, Kessel CE, Park JM, Elwasif WR, Whitfield RE, Kim K, Snyder PB, Batchelor DB, Bernholdt DE, Cianciosa MR, Green DL, Law KJH. Core-Pedestal Plasma Configurations in Advanced Tokamaks. FUSION SCIENCE AND TECHNOLOGY 2023. [DOI: 10.1080/15361055.2022.2145826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Hamid O, Lewis K, Weise A, McKean M, Papadopoulos K, Crown J, Thomas S, Kaczmar J, Lakhani N, Kim T, Kim K, Rabinowits G, Spira A, Mani J, Chen S, Gullo G. 150P Phase I study of fianlimab: A human lymphocyte activation gene-3 (LAG-3) monoclonal antibody, in combination with cemiplimab in advanced melanoma (mel) - Subgroup analysis. IMMUNO-ONCOLOGY AND TECHNOLOGY 2022. [DOI: 10.1016/j.iotech.2022.100262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Kang MJ, Ahn HS, Lee SY, Yeom J, Kim K, Hong SJ. TGFβ1 and POSTN as biomarkers of postinfectious bronchiolitis obliterans and asthma in children. Pediatr Pulmonol 2022; 57:3161-3164. [PMID: 36175004 DOI: 10.1002/ppul.26139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 08/23/2022] [Accepted: 09/03/2022] [Indexed: 01/11/2023]
Abstract
RATIONALE Asthma and postinfectious bronchiolitis obliterans (PIBO) are common chronic lung diseases in company with wheezing in children. However, it is not clear what is common and unique mechanisms between the two diseases. Thus, we used proteomic analysis to compare differences in biomarkers between children with asthma and PIBO. METHODS Overall, 30 healthy children without respiratory underlying diseases, 18 children with asthma and 15 with PIBO were included for this study. Sequential window acquisition of all theoretical mass spectra (SWATH)-mass spectrometry (MS) was used to measure proteins in plasma samples. To identify specific pathways of each groups, we used the ingenuity pathway analysis (IPA) software. RESULTS We identified and quantified 354 proteins across all 63 samples in the SWATH-MS analysis. Forty eight proteins were significantly different among 3 groups. The upstream analysis of IPA suggested that inhibitor of nuclear factor kappa B kinase subunit beta (IKBKB) was the upstream inhibitor of 4 differentially expressed proteins (DEPs) in asthma, while the upstream activator in PIBO subjects. Among 4 DEPs, TGF-β1 in PIBO and periostin in asthma were negatively correlated with forced expiratory volume in 1 s (FEV1), FEV1/forced vital capacity, maximal med-expiratory flow, and PC20, respectively. CONCLUSION These findings demonstrate that transforming growth factor β1 and periostin were unique biomarkers of PIBO and asthma in children, respectively. The mechanism regulated by IKBKB may be therapeutically relevant for PIBO and asthma.
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Ko H, Park Y, Kim J, Yang G, Byun H, Kim Y, Jung W, Park G, Lee H, Hong C, Kim K, Chang J. Axillary-Lateral Thoracic Vessel Juncture Radiotherapy Dose Constraints for Predicting Long-Term Lymphedema Risk in Patients with Breast Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Choi M, Chang J, Kim K, Chun M, Chun J, Kim J, Shin K, Kim Y. Contouring Variations and the Role of Deep Learning-Based Auto-Contouring in Breast Cancer Radiation Therapy: A Multi-Institutional Planning Study. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kim D, Kim K, Kim J, Kang S, Park J, Shin K. Near-Maximum Rib Dose is the Most Relevant Risk Factor for Ipsilateral Spontaneous Rib Fracture: A Dosimetric Analysis of Breast Cancer Patients after Radiotherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Jagodinsky J, Jin W, Bates A, Clark P, Sriramaneni R, Havighurst T, Chakravarthy I, Nystuen E, Kim K, Sondel P, Morris Z. Intratumoral MPL Induces Th1 Polarization and Augments In Situ Vaccination Generated by Radiation and Checkpoint Blockade. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ryu H, Song C, Kim J, Jeon J, Kim K, Cho S, Jheon S, Kim S, Kim Y, Lee J. Role of Prognostic Nutritional Index in Postoperative Radiotherapy for Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kwon C, Huntress L, Lee K, Kim K, Adkoli A, Beckerman W, Balica A. 8477 Uterine Artery Embolization Via Transradial Versus Transfemoral Arterial Access: Technical and Clinical Results. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Choi S, Kang M, Kim JW, Kim J, Hwang Y, Jeon J, Oh HK, Lee H, Cho J, Kim DW, Cho S, Kim J, Kim K, Kang SB, Jheon S, Lee KW. 48P Long-term clinical outcomes after the second metastasectomy in patients (pts) with resected metastatic colorectal cancer (mCRC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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Kim K, Lee SJ, Seo J, Suh YJ, Cho I, Hong GR, Ha JW, Kim YJ, Shim CY. Assessment of aortic valve area on cardiac computed tomography and doppler echocardiography: differences and clinical significance in symptomatic bicuspid aortic stenosis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Backgrounds
This study aimed to investigate the differences and clinical significance of effective orifice area (EOA) on Doppler echocardiography and geometric orifice area (GOA) on cardiac computed tomography (CT) in bicuspid aortic stenosis (AS).
Methods
One-hundred sixty-three consecutive patients (age 64±10 years, 56.4% men) with symptomatic bicuspid AS who were referred for surgery and underwent both cardiac CT and echocardiography within 3 months were studied. For the aortic valve area, GOACT was measured by multiplanar CT planimetry, and EOAEcho was calculated by continuity equation with Doppler echocardiography. The associations of GOACT and EOAEcho with the patients' symptom scale, biomarkers, and left ventricular (LV) functional variables were comprehensively analyzed.
Results
There was a significant but modest correlation between EOAEcho and GOACT (r=0.604, p<0.001). Both EOAEcho and GOACT revealed significant correlations with mean pressure gradient and peak transaortic velocity and the coefficients were higher in EOAEcho than GOACT. EOAEcho of 1.05 cm2 and GOACT of 1.25 cm2 correspond to the hemodynamic cut-off values for diagnosing severe AS. EOAEcho was well correlated with patients' symptom scale and log NT-pro BNP, but GOACT was not. In addition, EOAEcho showed higher correlation coefficient with estimated LV filling pressure and LV global longitudinal strain than GOACT.
Conclusions
Both EOAEcho and GOACT can be used to evaluate the severity of bicuspid AS, however, the threshold for GOACT for diagnosing severe AS should be applied higher than that for EOAEcho. EOAEcho tends to be more correlated with the patients' symptom degree, biomarkers, and LV functional variables than GOACT.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): The Korean Cardiac Research Foundation
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Kim K, Lee K, Jung J, Choi I, Lee J, Lee J, Lee S, Lee P, Lee S, Yoo K, Yun K, Lee H, Her S. Clinical outcomes of percutaneous coronary intervention and rotational atherectomy using second generation drug eluting stents: a Korean multicentre analysis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The aim of this study was to compare the clinical outcomes of different second generation drug-eluting stents (DES) in patients with calcified coronary lesions who underwent percutaneous coronary intervention using rotational atherectomy.
Methods
This study was based on a multicentre registry which enrolled patients with calcified coronary artery disease who received RA during between January 2010 and October 2019 from 9 tertiary centres in Korea. The primary outcome was target-vessel failure (TVF), defined as the compositae of cardiac death, target-vessel myocardial infarction (MI), and target-vessel revascularisation (TVR). The secondary outcomes were all-cause death, cardiac death, target vessel MI, TVR, cardiovascular accident, stent thrombosis, and total bleeding.
Results
540 patients who underwent PCI after RA were enrolled and followed up for a median period of 16.1 months. From this registry, 439 patients who were treated using second generation DES were selected for further analysis. They were divided into four groups based on the characteristics of the stents used during the procedure. [Group I cobalt-chromium sirolimus eluting stent (CoCr-SES): Ultimaster 48 & Orsiro 30, Group II platinum-chromium everolimus eluting stent (PtCr-EES): Synergy 93 & Promus 70, Group III cobalt-chromium everolimus eluting stent (CoCr-EES): Xience 105, Group IV zotarolimus eluting stent (ZES): Resolute 93] There was no inter-group difference in procedural success rates, and the primary outcome of TVF showed no difference across the four groups (I: 10.3%, II: 13.5%, III: 13.3%, IV: 15.1%, log-rank p=0.922). Even after multivariate Cox regression analysis, there was no significant difference in TVF, or the secondary outcomes of all-cause death, cardiac death, target vessel MI, TVR, cardiovascular accident, stent thrombosis, and total bleeding.
Conclusions
There was no difference in procedural success rates and clinical outcomes between four different types of second-generation DES (CoCr-SES, PtCr-EES, CoCr-EES, ZES) in patients who underwent PCI using RA.
Funding Acknowledgement
Type of funding sources: None.
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Kim K, Seo J, Cho I, Choi EY, Hong GR, Ha JW, Rim SJ, Shim CY. Characteristics and clinical implications of premature summation of early and late diastolic filling in patients without tachycardia. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Backgrounds
The summation of early (E) and late diastolic filling (A) on mitral inflow Doppler even in the absence of tachycardia is often found during assessments of left ventricular (LV) diastolic function. We evaluated the echocardiographic characteristics and clinical implications of premature E-A summation.
Methods
We identified 1,014 subjects who showed E-A summation and normal LV ejection fraction between January 2019 and June 2021 in two tertiary hospitals. Among these, 105 (10.4%) subjects showed premature E-A summation at heart rates less than 100 beats per minute (bpm). The conventional echocardiographic parameters and LV global longitudinal strain (GLS) were compared with 1:1 age, sex, and heart rate matched controls without E-A summation.
Results
The premature E-A summation group had a heart rate of 96.4±3.7 bpm. Only 4 (3.8%) subjects were classified as having LV diastolic dysfunction according to the current guidelines. That group showed prolonged isovolumic relaxation time (107.2±25.3 vs. 61.6±15.6 msec, p<0.001), increased Tei index (0.76±0.19 vs. 0.48±0.10, p<0.001), lower LVEF (63.8±7.0 vs. 67.3±5.6%, p<0.001) and lower absolute LV GLS (|LV GLS|) (17.0±4.2 vs. 19.7±3.3%, p<0.001) than controls. As the E-A summation occurred at lower heart rate, the |LV GLS| was also lower (p for trend=0.002).
Conclusions
The premature E-A summation at heart rates less than 100 bpm is associated with subclinical LV dysfunction. Time-based indices and LV GLS are helpful for evaluating this easily overlooked population.
Funding Acknowledgement
Type of funding sources: None.
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