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Lim SY. AS-68: The Effect of High-Dose Statin Loading Before Percutaneous Coronary Intervention in Patients with Acute Myocardial Infarction. Am J Cardiol 2010. [DOI: 10.1016/j.amjcard.2010.01.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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77
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Lim SY. AS-125: Comparison of Clinical Outcome and Cost-Effectiveness between Third-Generation Cobalt Chromium-Based Bare Metal Stent and the Zotarolimus-Eluting Stent in Large Coronary Arteries. Am J Cardiol 2010. [DOI: 10.1016/j.amjcard.2010.01.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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78
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Kim JB, Kim SH, Lim SY, Roh SY, Cho GY, Song HJ, Park S, Lee J, Kim SJ. Primary Angiosarcoma of the Pulmonary Trunk Mimicking Pulmonary Thromboembolism. Echocardiography 2010; 27:E23-6. [DOI: 10.1111/j.1540-8175.2009.01059.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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79
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Lim SY, Horsman JM, Hancock BW. The Mantle Cell Lymphoma International Prognostic Index: Does it work in routine practice? Oncol Lett 2010; 1:187-188. [PMID: 22966280 DOI: 10.3892/ol_00000034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2009] [Accepted: 09/28/2009] [Indexed: 12/12/2022] Open
Abstract
The Mantle Cell Lymphoma International Prognostic Index (MIPI) combines four factors to differentiate low-, intermediate- and high-risk prognostic groups in advanced mantle cell lymphoma using data from patients treated in clinical trials. To evaluate its use in routine practice, we applied the simplified index retrospectively to 50 consecutive new patients attending our lymphoma service. In the log-rank and multiple comparison statistical tests there was favorable differentiation between survival curves, and particularly between the high- and low-risk groups. We concluded that the MIPI is of value in routine lymphoma practice.
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Shin SY, Joo HJ, Lim SY, Park SM, Hong SJ, Shim WJ, Lim DS. Delayed rupture of the right sinus of valsalva into the right atrium after percutaneous coronary intervention. Korean J Intern Med 2009; 24:388-92. [PMID: 19949740 PMCID: PMC2784985 DOI: 10.3904/kjim.2009.24.4.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2007] [Accepted: 11/30/2007] [Indexed: 11/30/2022] Open
Abstract
Rupture of the sinus of Valsalva is an extremely rare complication after percutaneous coronary intervention (PCI). Because it usually results from the retrograde extension of a dissection of the right coronary artery and may quickly spread to involve the entire aorta, it can cause life-threatening complications such as aortic dissection. If the dissection remains localized, it can resolve spontaneously in the first month. Our patient experienced a delayed rupture of the right sinus of Valsalva into the right atrium at approximately 3 months after PCI.
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Lim SY, Bae EH, Jeong MH, Kim JH, Hong YJ, Sim DS, Kim YS, Park IK, Ahn Y, Song SJ, Cho DL, Kim KS, Kang JC. The effect of alpha lipoic acid in a porcine in-stent restenosis model. J Cardiol 2009; 54:375-85. [DOI: 10.1016/j.jjcc.2009.06.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2009] [Revised: 06/04/2009] [Accepted: 06/12/2009] [Indexed: 11/24/2022]
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82
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Choi Y, Lee MK, Lim SY, Sung SH, Kim YC. Inhibition of inducible NO synthase, cyclooxygenase-2 and interleukin-1beta by torilin is mediated by mitogen-activated protein kinases in microglial BV2 cells. Br J Pharmacol 2009; 156:933-40. [PMID: 19298258 DOI: 10.1111/j.1476-5381.2009.00022.x] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND AND PURPOSE Traditionally, the stem and root bark of Ulmus davidiana var. japonica (Ulmaceae) have been known to be anti-inflammatory in Korea. Anti-inflammatory effects of torilin, isolated from this plant and the underlying mechanisms were examined by using lipopolysaccharide (LPS)-stimulated microglial BV2 cells. EXPERIMENTAL APPROACH The cells were treated with torilin prior to LPS exposure and the effects on pro-inflammatory enzymes, inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2), and a pro-inflammatory cytokine, interleukin-1beta (IL-1beta) were analysed by RT-PCR, Western blot or elisa. To reveal the mechanism of action of torilin we investigated the involvement of mitogen-activated protein kinase (MAPK) cascades and their downstream transcription factors, nuclear factor-kappaB (NF-kappaB) and cyclic AMP-responsive element (CRE)-binding protein (CREB). KEY RESULTS Torilin significantly reduced the LPS-induced expression of iNOS, COX-2 and IL-1beta, and the subsequent release of NO, prostaglandin E(2) and IL-1beta into culture medium. LPS stimulation of extracellular signal-regulated kinase 1/2 (ERK1/2) and p38 MAPK was inhibited by torilin. In addition, the inhibitory effect of torilin on NF-kappaB and CREB was shown by torilin-mediated recovery of LPS-induced degradation of inhibitor kappaB-alpha and suppression of LPS-induced phosphorylation of CREB respectively. CONCLUSION AND IMPLICATIONS This study indicates that torilin inhibited LPS-induced iNOS, COX-2 and IL-1beta via down-regulation of ERK1/2, p38 MAPK, NF-kappaB and CREB and suggests that torilin has a potential as an anti-inflammatory drug candidate.
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Choi Y, Lim SY, Jeong HS, Koo KA, Sung SH, Kim YC. Oligonucleotide microarray analysis of apoptosis induced by 15-methoxypinusolidic acid in microglial BV2 cells. Br J Pharmacol 2009; 157:1053-64. [PMID: 19466985 DOI: 10.1111/j.1476-5381.2009.00247.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND AND PURPOSE We conducted a genome wide gene expression analysis to explore the biological aspects of 15-methoxypinusolidic acid (15-MPA) isolated from Biota orientalis and tried to confirm the suitability of 15-MPA as a therapeutic candidate for CNS injuries focusing on microglia. EXPERIMENTAL APPROACH Murine microglial BV2 cells were treated with 15-MPA, and their transcriptome was analysed by using oligonucleotide microarrays. Genes differentially expressed upon 15-MPA treatment were selected for RT-PCR (reverse transcription-polymerase chain reaction) analysis to confirm the gene expression. Inhibition of cell proliferation and induction of apoptosis by 15-MPA were examined by bromodeoxyuridine assay, Western blot analysis of poly-ADP-ribose polymerase and flow cytometry. KEY RESULTS A total of 514 genes were differentially expressed by 15-MPA treatment. Biological pathway analysis revealed that 15-MPA induced significant changes in expression of genes in the cell cycle pathway. Genes involved in growth arrest and DNA damage [gadd45alpha, gadd45gamma and ddit3 (DNA damage-inducible transcript 3)] and cyclin-dependent kinase inhibitor (cdkn2b) were up-regulated, whereas genes involved in cell cycle progression (ccnd1, ccnd3 and ccne1), DNA replication (mcm4, orc1l and cdc6) and cell proliferation (fos and jun) were down-regulated. RT-PCR analysis for representative genes confirmed the expression levels. 15-MPA significantly reduced bromodeoxyuridine incorporation, increased poly-ADP-ribose polymerase cleavage and the number of apoptotic cells, indicating that 15-MPA induces apoptosis in BV2 cells. CONCLUSION AND IMPLICATIONS 15-MPA induced apoptosis in murine microglial cells, presumably via inhibition of the cell cycle progression. As microglial activation is detrimental in CNS injuries, these data suggest a strong therapeutic potential of 15-MPA.
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Kim JW, Kang WC, Kim KS, Nam CW, Kim SJ, Ahn CM, Lee BKL, Lim SY, Jung HS, Choi JH, Hong YJ, Oh DJ. AS-154: Outcome of Noncardiac Surgical Procedures and Brief Interruption of Dual Antiplatelet Agents within 12 Months of Endeavor (Zotarolimus-Eluting) Stent Implantation: A Multicenter Study. Am J Cardiol 2009. [DOI: 10.1016/j.amjcard.2009.01.210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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85
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Lim SY, Jeong MH, Sim DS, Hong YJ, Kim JH, Ahn Y, Cho JG, Park JC, Kang JC, Moon HT, Byun Y. Inhibitory Effect of Double Coating with Echinomycin and Hydrophobic Heparin in a Porcine Coronary In-Stent Restenosis Model. Chonnam Med J 2009. [DOI: 10.4068/cmj.2009.45.2.87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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86
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Lim SY. The Role of Beta Blockers in Treating Hypertensive Patients. Chonnam Med J 2009. [DOI: 10.4068/cmj.2009.45.2.75] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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87
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Lim SY, Kim KS, Joo SJ, Jeong MH. Very late stent thrombosis after drug-eluting stent implantation in a patient without aspirin and clopidogrel resistance. J Korean Med Sci 2008; 23:556-9. [PMID: 18583901 PMCID: PMC2526514 DOI: 10.3346/jkms.2008.23.3.556] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Very late stent thrombosis (VLST) after implantation of drug-eluting stent is rare, but very fatal complication after percutaneous coronary intervention. We report a case of VLST of a sirolimus-eluting Cypher stent (Cordis, Johnson and Johnson) presenting as acute ST elevation myocardial infarction at 26 months after deployment with continued combined dual antiplatelet medication of aspirin and clopidogrel. The patient did not show anti-platelet resistance.
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Park JY, Bae J, Lim MC, Lim SY, Seo SS, Kang S, Park SY. Laparoscopic and laparotomic staging in stage I epithelial ovarian cancer: a comparison of feasibility and safety. Int J Gynecol Cancer 2008; 18:1202-9. [PMID: 18284455 DOI: 10.1111/j.1525-1438.2008.01190.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The aim of this study was to compare laparoscopic and laparotomic surgical staging in patients with stage I epithelial ovarian cancer in terms of feasibility and safety. A retrospective chart review was undertaken of all patients with apparent stage I epithelial ovarian cancer who underwent laparoscopic (laparoscopy group) or laparotomic (laparotomy group) surgical staging at the Center for Uterine Cancer, National Cancer Center, Korea, between January 2001 and August 2006. During the study period, 19 patients underwent laparotomic surgical staging and 17 patients underwent laparoscopic surgical staging. No cases were converted from laparoscopy to laparotomy. The two groups were similar in terms of age, body mass index, procedures performed, number of lymph nodes retrieved, and operating time. The laparoscopy group had less estimated blood loss (P = 0.001), faster return of bowel movement (P < 0.001), and a shorter postoperative hospital stay (P = 0.002) compared to the laparotomy group. Transfusions were required only in two laparotomy patients, and postoperative complications occurred only in four laparotomy patients. However, two patients with stage IA grade 1 and 2 disease in laparoscopy group had recurrence with one patient dying of disease. The accuracy and adequacy of laparoscopic surgical staging were comparable to laparotomic approach, and the surgical outcomes were more favorable than laparotomic approach. However, the oncologic safety of laparoscopic staging was not certain. This is the first report on the possible hazards of laparoscopic staging in early-stage ovarian cancer. In the absence of a large prospective trial, this technique should be performed cautiously.
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Hong SJ, Ahn TH, Shim WJ, Park SM, Choi JI, Park JS, Lim SY, Lim DS, Park CG, Seo HS. Macrophage Depletion by Clodronate Liposomes Suppresses Neointimal Formation After Carotid Artery Injury in Apolipoprotein E-Deficient Mice. Korean Circ J 2008. [DOI: 10.4070/kcj.2008.38.5.244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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90
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Park JY, Lim MC, Lim SY, Bae JM, Yoo CW, Seo SS, Kang S, Park SY. Port-site and liver metastases after laparoscopic pelvic and para-aortic lymph node dissection for surgical staging of locally advanced cervical cancer. Int J Gynecol Cancer 2008; 18:176-80. [PMID: 17506848 DOI: 10.1111/j.1525-1438.2007.00972.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Recently, we experienced a case of port-site and liver metastases after 75 cases of laparoscopic transperitoneal pelvic lymph node dissection (PLND) and para-aortic lymph node dissection (PALND) for surgical staging of locally advanced cervical cancer. A 45-year-old-woman with stage IIB cervical adenocarcinoma underwent laparoscopic PLND and PALND for surgical staging. There was no intraperitoneal disease and cervical tumor was not manipulated at the time of laparoscopic surgery. Pathologic examination revealed only one micrometastasis in left internal iliac lymph node (LN), measuring 1 mm, of the 60 pelvic and para-aortic LNs removed. She received concurrent chemoradiation therapy and pelvic mass disappeared completely. One month after the completion of therapy, both lateral and umbilical port-site and liver metastases were detected. We conclude that although cases of port-site metastasis have mostly occurred after extensive disease, the possibility of such complication should be kept in mind at laparoscopy of early cancer and laparoscopy which does not manipulate primary tumor.
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91
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Lim SY, Jeong MH, Hong SJ, Lim DS, Moon JY, Hong YJ, Kim JH, Ahn Y, Kang JC. Inflammation and Delayed Endothelization With Overlapping Drug-Eluting Stents in a Porcine Model of In-Stent Restenosis. Circ J 2008; 72:463-8. [PMID: 18296847 DOI: 10.1253/circj.72.463] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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92
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Hong YJ, Jeong MH, Hwang SH, Yun NS, Lim SY, Lee SR, Hong SN, Kim KH, Park HW, Kim JH, Kim W, Ahn YK, Cho JG, Park JC, Kang JC. Impact of postprocedure minimum stent area on long-term results following abciximab-coated stent implantation: an intravascular ultrasound analysis. Int J Cardiol 2007; 123:23-8. [PMID: 17289173 DOI: 10.1016/j.ijcard.2006.11.101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2006] [Revised: 10/17/2006] [Accepted: 11/09/2006] [Indexed: 11/24/2022]
Abstract
BACKGROUND Smaller postprocedural minimum stent areas (MSA) measured by intravascular ultrasound (IVUS) have been associated with higher restenosis rates. METHODS This was a single-center, prospective, randomized trial and we assessed the predictive value of MSA for long-term patency and the incidence and extent of incomplete stent apposition (ISA) following abciximab-coated stent (n=69) compared to bare metal stent (BMS) implantation (n=69). All patients underwent IVUS follow-up at 6 months. RESULTS At follow-up coronary angiogram, the restenosis rate and late loss were 12%, 0.30+/-0.24 mm in abciximab-coated stent group and 29%, 0.68+/-0.36 mm in BMS group (p=0.011, 0.010, respectively). At follow-up IVUS, intrastent lumen area was significantly larger and intrastent neointimal hyperplasia area was significantly smaller in abciximab-coated stent group than those in BMS group (5.9+/-1.6 mm(2) vs. 4.5+/-1.7 mm(2), p=0.001, and 1.9+/-1.5 mm(2) vs. 3.3+/-1.9 mm(2), p<0.001, respectively). Target lesion revascularization occurred in 9%, 0%, and 0% in abciximab-coated stent group and 19%, 4%, and 1% in BMS group in lesions with a MSA <6.0 mm(2), from 6 to 7.5 mm(2), and >7.5 mm(2), respectively. Late-acquired ISA at follow-up was observed in 7 patients and there was no difference in the incidence of ISA between both groups [abciximab-coated stent: n=3 (4%) vs. BMS: n=4 (6%), p=0.698]. CONCLUSION Abciximab-coated stent reduced restenosis and had a considerably lower optimal MSA threshold compared to BMS and showed lower incidence of late-acquired ISA.
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Hong SJ, Shim WJ, Choi JI, Joo HJ, Shin SY, Park SM, Lim SY, Lim DS. Comparison of effects of telmisartan and valsartan on late lumen loss and inflammatory markers after sirolimus-eluting stent implantation in hypertensive patients. Am J Cardiol 2007; 100:1625-9. [PMID: 18036359 DOI: 10.1016/j.amjcard.2007.06.068] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2007] [Revised: 06/20/2007] [Accepted: 06/20/2007] [Indexed: 11/18/2022]
Abstract
We compared the effects of telmisartan and valsartan on late lumen loss and inflammatory markers after sirolimus-eluting stent implantation in hypertensive patients. This was a prospective, randomized, single-blinded, 8-month follow-up study that included hypertensive patients with significant coronary artery stenosis treated with telmisartan (n=79) or valsartan (n=80). Risk factors such as diabetes, hyperlipidemia, smoking, and obesity were similar between groups. After 8 months of follow-up, only the telmisartan group showed significant decreases in interleukin-6 and tumor necrosis factor-alpha. The decreases from baseline level in total cholesterol and low-density lipoprotein cholesterol concentrations were significantly greater in the telmisartan group. The increase in adiponectin concentrations from baseline measurements was significantly greater in the telmisartan group than in the valsartan group (1.9+/-2.7 vs 0.4+/-2.0 microg/ml, respectively, p<0.05). Moreover, late lumen loss was significantly lower in the telmisartan group than in the valsartan group (0.1+/-0.4 vs 0.3+/-0.5 mm, respectively, p=0.001). Major adverse cardiac events were similar between groups. In conclusion, compared with valsartan, telmisartan was associated with a significant decrease in late lumen loss and inflammatory markers after sirolimus-eluting stent implantation in hypertensive patients with significant coronary narrowing.
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Lim SY, Davidson SM, Mocanu MM, Yellon DM, Smith CCT. The cardioprotective effect of necrostatin requires the cyclophilin-D component of the mitochondrial permeability transition pore. Cardiovasc Drugs Ther 2007; 21:467-9. [PMID: 17965927 PMCID: PMC2874660 DOI: 10.1007/s10557-007-6067-6] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND Necrostatin (Nec-1) protects against ischemia-reperfusion (IR) injury in both brain and heart. We have previously reported in this journal that necrostatin can delay opening of the mitochondrial permeability transition pore (MPTP) in isolated cardiomyocytes. AIM The aim of the present study was to investigate in more detail the role played by the MPTP in necrostatin-mediated cardioprotection employing mice lacking a key component of the MPTP, namely cyclophilin-D. METHOD Anaesthetized wild type (WT) and cyclophilin-D knockout (Cyp-D-/-) mice underwent an open-chest procedure involving 30 min of myocardial ischemia and 2 h of reperfusion, with subsequent infarct size assessed by triphenyltetrazolium staining. Nec-1, given at reperfusion, significantly limited infarct size in WT mice (17.7 +/- 3% vs. 54.3 +/- 3%, P < 0.05) but not in Cyp-D-/- mice (28.3 +/- 7% vs. 30.8 +/- 6%, P > 0.05). CONCLUSION The data obtained in Cyp-D-/- mice provide further evidence that Nec-1 protects against myocardial IR injury by modulating MPTP opening at reperfusion.
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Lim SY, Kim BJ, Lee MK, Kim K. Development of a real-time PCR-based method for rapid differential identification of Mycobacterium species. Lett Appl Microbiol 2007; 46:101-6. [PMID: 18028331 DOI: 10.1111/j.1472-765x.2007.02278.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS To develop a real-time PCR method for rapid differential identification of many clinically important mycobacteria to the species level. METHODS AND RESULTS Eighteen Mycobacterium species that are considered clinically important were targeted for the identification. One primer pair and 21 pairs of hybridization probes (HybProbes) specific for the genus, species or complex were designed based on the rpoB gene sequences of mycobacteria. Twenty-five different Mycobacterium reference species were tested. In a single round of real-time PCR, all the nontuberculous mycobacteria (NTM) species tested were identified at the genus level and 16 of the 18 targeted species were differentially identified to the species or complex level during the amplification cycles; subsequent melting curve analysis allowed the specific identification of all the target species at the species or complex level without cross-reactivity with the other species. CONCLUSIONS The developed real-time PCR assay rapidly identifies the NTM at the genus level and 18 clinically important Mycobacterium species at the species or complex level. SIGNIFICANCE AND IMPACT OF THE STUDY This real-time PCR assay provides a useful tool for the rapid differentiation of most clinically important Mycobacterium species.
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Kim W, Jeong MH, Lee SR, Lim SY, Hong YJ, Ahn YK, Kang JC. An accordion phenomenon developed after stenting in a patient with acute myocardial infarction. Int J Cardiol 2007; 114:E60-2. [PMID: 17055087 DOI: 10.1016/j.ijcard.2006.07.057] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2006] [Accepted: 07/15/2006] [Indexed: 11/24/2022]
Abstract
Straightening and mechanical alteration of the geometry and curvature of tortuous vessel by a stiff guide-wire sometimes results in invagination and shortening of the vessel wall, which has been recognized as the "accordion phenomenon". Long stent may straighten out a tortuous arterial segment. We present the first described unique case of the accordion phenomenon which developed in totally occluded coronary artery in acute myocardial infarction after the long stent implantation.
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Lim SY, Jeong MH, Kim JH, Lee SR, Moon JY, Hong YJ, Kim JH, Ahn Y, Cho JG, Park JC, Kim KS, Joo SJ, Kang JC. Re-endothelization and Inflammatory Reaction at Site of Overlapping Drug-Eluting Stents in a Porcine Coronary In-Stent Restenosis Model. Korean Circ J 2007. [DOI: 10.4070/kcj.2007.37.1.33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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98
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Hong SJ, Kim MH, Ahn TH, Shim WJ, Park SM, Choi JI, Joo HJ, Shin SY, Lim SY, Lim DS. Comparison of the Predictors of Coronary Restenosis after Drug-Eluting Stent Implantation in Diabetic and Nondiabetic Patients. Korean Circ J 2007. [DOI: 10.4070/kcj.2007.37.11.530] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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99
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Lim SY, Ahn Y, Jeong MH, Hong YJ, Kang JC. Recurrent coronary arteriovenous fistula associated with in-stent restenosis of graft stent. Int J Cardiol 2006; 113:E1-3. [PMID: 16839622 DOI: 10.1016/j.ijcard.2006.04.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2006] [Accepted: 04/26/2006] [Indexed: 11/26/2022]
Abstract
Recent studies showed that graft stenting for treating the coronary arteriovenous fistula (CAVF) is satisfactory. One major drawback of graft stenting is that it is difficult to completely seal off the CAVF and it has recurrence of CAVF and high incidence of in-stent restenosis (ISR) or thrombus. We report a unique case of the patient with recurrent CAVF, ISR, and thrombus who underwent graft stents implantation.
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Lim SY, Kim YS, Ahn Y, Jeong MH, Rok LS, Kim JH, Kim KH, Park HW, Kim W, Cho JG, Park JC, Kang PM, Schwartz RS, Kang JC. The effects of granulocyte-colony stimulating factor in bare stent and sirolimus-eluting stent in pigs following myocardial infarction. Int J Cardiol 2006; 118:304-11. [PMID: 17052793 DOI: 10.1016/j.ijcard.2006.07.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2005] [Revised: 04/03/2006] [Accepted: 07/09/2006] [Indexed: 11/17/2022]
Abstract
OBJECTIVES The purpose of this study was to compare the effects of granulocyte-colony stimulating factor (G-CSF) on in-stent restenosis (ISR) in bare and sirolimus-eluting stents (SES) in a porcine myocardial infarction model. BACKGROUND Using G-CSF to mobilize stem cells has shown promise in infarcted heart. However, G-CSF may aggravate ISR and an aggressive strategy to prevent ISR is needed. METHODS Bare stents and SES were implanted in coronary arteries (Group I, bare stents; Group II, bare stents with G-CSF; Group III, SES; Group IV, SES with G-CSF, n=10 in each group) 72 h after experimental myocardial infarction (MI). G-CSF (10 microg/kg/day) was injected for 7 days from 24 h after stent implantation. RESULTS In coronary angiographic and histomorphometric analysis, percent area stenosis was significantly increased in Group II compared with that in Group I at 28 days (P<0.05). The ratio of inflammatory cells in the neointima was higher in Group II (P<0.05). No significant differences were observed between Group III and IV. In Group II, phosphorylated signal transducers and activators of transcription (STAT)-3, STAT-3, and vascular endothelial growth factor (VEGF) showed increased neointimal expression. In porcine aortic smooth muscle cells (PASMC), G-CSF increased the growth rate, migration, STAT-3 phosphorylation, and VEGF, which were suppressed by rapamycin and AG490, a STAT-3 inhibitor. CONCLUSIONS STAT-3 and VEGF are important in the development of enhanced ISR by G-CSF in bare stents. SES could be a good strategy to prevent the G-CSF-stimulated proliferation and migration of smooth muscle cells, which could be responsible for neointimal hyperplasia.
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