128 results on '"Lakkis, N"'
Search Results
2. Use of cardiopulmonary pump support during coronary artery bypass grafting in the high-risk: a meta-analysis
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Yousif, A., primary, Addison, D., additional, Lakkis, N., additional, Rosengart, T., additional, Virani, S. S., additional, Birnbaum, Y., additional, and Alam, M., additional
- Published
- 2017
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3. Ability of minor elevations of troponins I and T to predict benefit from an early invasive strategy in patients with unstable angina and non-ST elevation myocardial infarction: results from a randomized trial.
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Morrow DA, Cannon CP, Rifai N, Frey MJ, Vicari R, Lakkis N, Robertson DH, Hille DA, DeLucca PT, DiBattiste PM, Demopoulos LA, Weintraub WS, Braunwald E, TACTICS-TIMI 18 Investigators, Morrow, D A, Cannon, C P, Rifai, N, Frey, M J, Vicari, R, and Lakkis, N
- Abstract
Context: Cardiac troponins I (cTnI) and T (cTnT) are useful for assessing prognosis in patients with unstable angina and non-ST-segment elevation myocardial infarction (UA/NSTEMI). However, the use of cardiac troponins for predicting benefit of an invasive vs conservative strategy in this patient population is not clear.Objective: To prospectively test whether an early invasive strategy provides greater benefit than a conservative strategy in acute coronary syndrome patients with elevated baseline troponin levels.Design: Prospective, randomized trial conducted from December 1997 to June 2000.Setting: One hundred sixty-nine community and tertiary care hospitals in 9 countries.Participants: A total of 2220 patients with acute coronary syndrome were enrolled. Baseline troponin level data were available for analysis in 1821, and 1780 completed the 6-month follow-up.Interventions: Patients were randomly assigned to receive (1) an early invasive strategy of coronary angiography between 4 and 48 hours after randomization and revascularization when feasible based on coronary anatomy (n = 1114) or (2) a conservative strategy of medical treatment and, if stable, predischarge exercise tolerance testing (n = 1106). Conservative strategy patients underwent coronary angiography and revascularization only if they manifested recurrent ischemia at rest or on provocative testing.Main Outcome Measure: Composite end point of death, MI, or rehospitalization for acute coronary syndrome at 6 months.Results: Patients with a cTnI level of 0.1 ng/mL or more (n = 1087) experienced a significant reduction in the primary end point with the invasive vs conservative strategy (15.3% vs 25.0%; odds ratio [OR], 0.54; 95% confidence interval [CI], 0.40-0.73). Patients with cTnI levels of less than 0.1 ng/mL had no detectable benefit from early invasive management (16.0% vs 12.4%; OR, 1.4; 95% CI, 0.89-2.05; P<.001 for interaction). The benefit of invasive vs conservative management through 30 days was evident even among patients with low-level (0.1-0.4 ng/mL) cTnI elevation (4.4% vs 16.5%; OR, 0.24; 95% CI, 0.08-0.69). Directionally similar results were observed with cTnT.Conclusion: In patients with clinically documented acute coronary syndrome who are treated with glycoprotein IIb/IIIa inhibitors, even small elevations in cTnI and cTnT identify high-risk patients who derive a large clinical benefit from an early invasive strategy. [ABSTRACT FROM AUTHOR]- Published
- 2001
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4. Assessment of the American Society of Echocardiography-European Association of Echocardiography guidelines for diastolic function in patients with depressed ejection fraction: an echocardiographic and invasive haemodynamic study
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Dokainish, H., primary, Nguyen, J. S., additional, Bobek, J., additional, Goswami, R., additional, and Lakkis, N. M., additional
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- 2011
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5. Family physicians beliefs and attitudes regarding adult pneumococcal and influenza immunization in Lebanon
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Romani, M. H., primary, Musharrafieh, U. M., additional, Lakkis, N. A., additional, and Hamadeh, G. N., additional
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- 2011
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6. Hypertrophic obstructive cardiomyopathy-alcohol septal ablation vs. myectomy: a meta-analysis
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Alam, M., primary, Dokainish, H., additional, and Lakkis, N. M., additional
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- 2009
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7. Can alcohol septal ablation normalize systolic function in HOCM?
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Dokainish, H., primary and Lakkis, N., additional
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- 2006
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8. Impact of infarct size on clinical and echocardiographic outcome in patients undergoing nonsurgical septal reduction therapy
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Chang, S.M., primary, Sekandarzad, M.W., additional, Jiang, S., additional, Nagueh, S., additional, Spencer, W., additional, and Lakkis, N., additional
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- 2004
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9. Prevalence and Outcomes of Web-Based Health Information Seeking for Acute Symptoms: Cross-Sectional Study
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Aoun, Lydia, Lakkis, Najla, and Antoun, Jumana
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Computer applications to medicine. Medical informatics ,R858-859.7 ,Public aspects of medicine ,RA1-1270 - Abstract
BackgroundThe literature indicates that Web-based health information seeking is mostly used for seeking information on well-established diseases. However, only a few studies report health information seeking in the absence of a doctor’s visit and in the context of acute symptoms. ObjectiveThis survey aimed to estimate the prevalence of Web-based health information seeking for acute symptoms and the impact of such information on symptom management and health service utilization. MethodsThis was a cross-sectional study of a convenience sample of 287 Lebanese adults (with a response rate of 18.5% [54/291]) conducted between December 2016 and June 2017. The survey was answered by participants online or through phone-based interviews. ResultsA total of 64.3% of the participants (178/277) reported checking the internet for health information when they had an acute symptom. The rate of those who sought to use Web-based health information first when experiencing acute symptom(s) in the past 12 months was 19.2% (25/130). In addition, 50% (9/18) visited the doctor because of the obtained information, and the rest self-medicated or sought a pharmacist’s advice; the majority (18/24, 75%) improved within 3-4 days. ConclusionsHigher education level and trust in Web-based medical information were two major predictors of Web-based health information seeking for acute symptoms. Seeking Web-based health information first for acute symptoms is common and may lead to self-management by avoiding a visit to the physician. Physicians should encourage their patients to discuss Web-based health information and guide them toward trusted online websites.
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- 2020
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10. Hypertrophic obstructive cardiomyopathy: Alternative therapeutic options
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Lakkis, N., primary, Kleiman, N., additional, Spencer, W. H., additional, Delius, W., additional, and Cheng, Tsung O., additional
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- 1997
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11. Real-life global survey evaluating patients with atrial fibrillation (REALISE-AF): results of an international observational registry.
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Alam M, Bandeali SJ, Shahzad SA, and Lakkis N
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- 2012
12. Benefits and risks of the combination of clopidogrel and aspirin in patients undergoing surgical revascularization for non-ST-elevation acute coronary syndrome: the Clopidogrel in Unstable angina to prevent Recurrent ischemic Events (CURE) Trial.
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Fox KAA, Mehta SR, Peters R, Zhao F, Lakkis N, Gersh BJ, and Yusuf S
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- 2004
13. Prospective analysis of creatine kinase muscle-brain fraction and comparison with troponin T to predict cardiac risk and benefit of an invasive strategy in patients with non-ST-elevation acute coronary syndromes.
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Kleiman NS, Lakkis N, Cannon CP, Murphy SA, DiBattiste PM, Demopoulos LA, Weintraub WS, Braunwald E, Treatment Angina With Aggrastat and Determine Cost of Therapy With an Invasive or Conservative Strategy 18 Investigators, Kleiman, Neal S, Lakkis, Nasser, Cannon, Christopher P, Murphy, Sabina A, DiBattiste, Peter M, Demopoulos, Laura A, Weintraub, William S, Braunwald, Eugene, and TACTICS-TIMI 18 Investigators
- Abstract
Objective: We sought to determine whether elevation of plasma creatine kinase muscle-brain fraction (CK-MB) would be useful to triage patients with acute coronary syndromes (ACS) to early angiography/revascularization.Background: It is unknown whether the measurement of CK-MB is effective for triage to an aggressive management strategy.Method: Patients in the Treat Angina With Aggrastat and Determine Cost of Therapy With an Invasive or Conservative Strategy (TACTICS-TIMI) 18 study received aspirin, heparin, and tirofiban for treatment of ACS, were randomized to an invasive or a conservative strategy (angiography/revascularization between 4 and 48 h), and were followed up for a composite end point of death, myocardial infarction, or rehospitalization for ACS. Of 2,220 patients, CK-MB was elevated in 826 (37%). Of the patients with negative CK-MB, troponin T was elevated in 361 (31.2%). Event rates at 30 and 180 days were twice as high in patients with elevated CK-MB than in patients without elevated CK-MB. Both groups had similar benefit from an invasive strategy; there was no evidence of interaction between CK-MB elevation and strategy on the composite end point at 30 or 180 days. When patients were stratified according to both CK-MB and troponin status, there was evidence of a benefit in the invasive strategy among patients who were CK-negative but troponin-positive (odds ratios [95% confidence interval]: 0.13 [0.04 to 0.39] at 30 days and 0.29 [0.16 to 0.52] at 180 days).Conclusion: Patients with minimal amounts of recent onset myonecrosis but elevated risk as indicated by CK-MB and troponin, respectively, benefit most from invasive management. Determination of troponin levels yielded significant information regarding triage to an invasive strategy, particularly in CK-MB-negative patients. [ABSTRACT FROM AUTHOR]- Published
- 2002
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14. Decreased expression of tumor necrosis factor-alpha and regression of hypertrophy after nonsurgical septal reduction therapy for patients with hypertrophic obstructive cardiomyopathy.
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Nagueh, S F, Stetson, S J, Lakkis, N M, Killip, D, Perez-Verdia, A, Entman, M L, Spencer, W H 3rd, and Torre-Amione, G
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- 2001
15. New treatment methods for patients with hypertrophic obstructive cardiomyopathy.
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Lakkis, Nasser and Lakkis, N
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- 2000
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16. Massive pulmonary embolism in pregnancy treated with tissue plasminogen activator.
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Trukhacheva E, Scharff M, Gardner M, and Lakkis N
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- 2005
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17. Leukocyte Activation With Platelet Adhesion After Coronary Angioplasty: A Mechanism for Recurrent Disease?
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Mickelson, J. K., Lakkis, N. M., Villarreal-Levy, G., Hughes, B. J., and Smith, C. W.
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- 1996
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18. The clopidogrel in unstable angina to prevent Recurrent Events (CURE) trial programme - Rationale, design and baseline characteristics including a meta-analysis of the effects of thienopyridines in vascular disease
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Yusuf, S., Mehta, S., Anand, S., Avezum, A., Awan, N., Bertrand, M., Blumenthal, M., Bouthier, J., Budaj, A., Ceremuzynski, L., Chrolavicius, S., Col, J., Commerford, P., Diaz, R., Flather, M., Fox, K., Franzosi, Mg, Gaudin, C., Gersh, B., Grossman, W., Halon, D., Hess, T., Hunt, D., Joyner, C., Karatzas, N., Keltai, M., Khurmi, N., Kopecky, S., Lewis, B., Maggioni, A., Malmberg, K., Moccetti, T., Morais, J., Paolasso, E., Peters, R., Piegas, L., Pipilis, A., Ramos-Corrales, Ma, Rupprecht, Hj, Ryden, L., Sitkei, E., Sotty, M., Tognoni, G., Valentin, V., Varigos, J., Widimsky, P., Wittlinger, T., Pogue, J., Copland, I., Cracknell, B., Demers, C., Eikelboom, J., Hall, K., Keys, J., Mcqueen, M., Montague, P., Morris, B., Ounpuu, S., Wright, C., Yacyshyn, V., Zhao, F., Lewis, Bs, Commerford, Pj, Wyse, G., Cairns, J., Hart, R., Hirsh, J., Gent, M., Ryan, T., Wittes, J., Auger, P., Basart, Dcg, Chan, Y., Raedt, H., Den Hartoog, M., Galli, M., Garcia-Guerrero, Jj, Marquis, Jf, Mauri, F., Mayosi, B., Natarajan, M., Nieminen, M., Norris, J., Panju, A., Peters, Rj, Renkin, J., Rihal, C., Szymanski, P., Wasek, W., Allende, G., Bono, Jo, Caccavo, A., Fernandez, Aa, Fuselli, Jj, Gambarte, Aj, Guerrero, Raa, Hasbani, Eg, Liprandi, As, Marzetti, E., Mon, G., Nordaby, R., Nul, D., Quijano, G., Salvati, A., San Martin, E., Sokn, F., Torre, H., Trivi, M., Tuero, E., Amerena, J., Bailey, N., Bett, Jhn, Buncle, A., Careless, D., Desilva, S., Ewart, A., Fitzpatrick, D., Garrahy, P., Gunawardane, K., Hamer, A., Hill, A., Jackson, B., Lane, G., Nelson, G., Owensby, D., Rees, D., Rosen, D., Sampson, J., Singh, B., Taylor, R., Thomson, A., Walsh, W., Watson, B., Glogar, H., Steinbach, K., Geutjens, L., Ledune, J., Lescot, C., Popeye, R., Vermeulen, J., Abrantes, Ja, Baruzzi, Ac, Bassan, R., Bodanese, Lc, Carvalho, Ac, Mario Coutinho, Albuquerque, Dc, Dutra, O., Esteves, Jp, Leaes, Pe, Marino, Rl, Neto, Jam, Nicolau, Jc, Rabelo, A., Timerman, A., Xavier, Ss, Bata, I., Bhargava, Rk, Bogaty, P., Bolduc, P., Boyne, T., Chan, Yk, D Astous, M., Davies, T., Dhingra, S., Desjardins, L., Douglas, Jg, Fortin, C., Fung, A., Gangbar, E., Gebhardt, V., Gervais, Pb, Giannoccaro, Jp, Gossard, D., Gosselin, G., Grandmont, D., Grover, A., Gupta, M., Hiscock, Jg, Hynd, Jwh, Hussain, M., Iless, A., Kitching, A., Kostuk, W., Kouz, S., Kwok, K., Lee, H., Lefkowitz, C., Lenis, J., Lubelsky, B., Ma, P., May, B., Mercier, M., Montigny, M., Morris, A., Nawaz, S., Pallie, S., Parekh, P., Pesant, Y., Pilon, C., Pistawka, K., Rajakumar, Arj, Rebane, T., Ricci, J., Ruel, M., Schuld, R., Starra, R., Sussex, B., Talbot, P., Theroux, P., Venkatesh, G., Weeks, As, Winkler, Lh, Wisenberg, G., Woo, K., Yu, E., Zadra, R., Bocek, P., Branny, M., Cepelak, V., Drapalik, V., Gregor, P., Groch, L., Jansky, P., Kalslerova, M., Starek, A., Svitil, P., Vaclavicek, A., Husted, S., Rasmussen, Lh, Nielsen, Hk, Hamalainen, T., Majamas-Voltti, K., Mustonen, J., Peuhkurinen, K., Raasakka, T., Ylitalo, A., Adam, Mc, Agraou, B., Amat, G., Bessede, G., Boulenc, Jm, Boureux, C., Dambrine, P., Decoulx, E., Delarche, N., Desjoyaux, E., D Hautefeuille, B., Dubois-Rande, Jl, Fadel, N., Fouche, R., Fournier, P., Haftel, Y., Kahn, Jc, Ketelers, Jy, Lallemant, R., Lang, M., Lelguen, C., Leroy, F., Montalescot, G., Poulard, Je, Richard, M., Wittenberg, O., Beythien, Rd, Dippold, Wg, Harenberg, J., Hasslacher, C., Hauptmann, Ke, Hempel, G., Horacek, T., Kaulhausen, A., Kohler, B., Kurz, C., Lengfelder, W., Liebau, G., Loos, U., Neuss, H., Ochs, Hr, Pollock, B., Post, G., Reismann, K., Sauer, M., Schmidt, A., Schmitt, H., Schuster, P., Trenkwalder, P., Uebis, R., Leitner, Er, Vossbeck, G., Christakos, S., Karidis, K., Kelesidis, K., Papadopoulos, K., Tirologos, A., Tsaknakis, T., Gesztesi, T., Herczeg, B., Janosi, A., Kalo, E., Karpati, P., Mesko, E., Mezofi, M., Poor, F., Regos, L., Rudas, L., Soltesz, P., Szaboki, F., Timar, S., Valyi, P., Zamolyi, K., Daly, Km, Meany, Bt, Sugrue, D., Caspi, A., David, D., Marmor, A., Nazzal, D., Omary, M., Reisin, L., Rosenfeld, T., Shasha, S., Vered, Z., Zimlichman, R., Bellet, C., Bernardi, D., Branzi, A., Ceci, V., Celegon, L., Cernigliaro, C., Corsini, G., Croce, A., Caterina, R., Servi, S., Di Biase, G., Di Chiara, A., Di Pasquale, G., Filorizzo, G., Fiorentini, C., Ignone, G., Lombardi, F., Mafrici, A., Margonato, A., Maurea, N., Meneghetti, P., Meniconi, L., Mennuni, M., Mininni, N., Murrone, A., Notaristefan, A., Pettinati, G., Pinelli, G., Rossi, R., Sanna, A., Scabbia, E., Terrosu, P., Trinchero, R., Ruiz, Ra, Diaz, Ac, Santamaria, Ih, Pons, Jll, Diaz, Cjs, Castro, Jat, Morales, Ev, Bronzwaer, Pna, Haan, Hpj, Grosfeld, Mjw, Heijmeriks, Ja, Jochemsen, Gm, Klomps, Hc, Landsaat, Pm, Michels, Hr, Peters, Jrm, Beek, Gj, Hiejden, R., Verheul, Ja, Viergever, Ep, Audeau, M., Bopitiya, U., Hills, M., Ikram, H., Erikssen, J., Morstel, T., Vik-Mo, H., Haerem, Jw, Achremczyk, P., Banasiak, W., Burduk, P., Danielewicz, H., Demczuk, M., Dworzanski, W., Frycz, J., Gessek, J., Gorny, J., Janik, K., Jedrzejowski, A., Kawka-Urbanek, T., Kozlowski, A., Krasowski, W., Maciejewicz, J., Majcher, Z., Malinowski, S., Marczyk, T., Miekus, P., Ogorek, M., Piepiorka, M., Religa, K., Reszka, Z., Smielak-Korombel, W., Susol, D., Szpajer, M., Ujda, M., Waszyrowski, T., Zebrowski, A., Zielinski, Z., Cardoso, P., Carrageta, M., Correia, A., Cunha, D., Ferreira, L., Ferreira, R., Ribeiro, Vg, Tuna, Jl, Gomes, Mv, Aboo, A., Bobak, L., Brown, B., Cassim, S., King, J., Manga, P., Maritz, F., Marx, Jd, Mekel, J., Myburgh, Dp, Routier, R., Orcajo, Na, Asin, E., Colomina, F., Del Nogal, F., Echanove, I., Ferriz, J., Alcantara, Ag, Guerrero, Jjg, Juanatey, Jrg, Jodar, L., Lekuona, I., Miralles, L., Llorian, Ar, Rovira, A., San Jose, Jm, Valle, V., Abdon, Nj, Bartholdson, B., Fredholm, O., Kristensson, Be, Messner, T., Moller, Bh, Rasmanis, G., Stjerna, A., Strandberg, Le, Tolhagen, K., Caduff, B., Christen, S., Gallino, A., Haller, A., Noseda, G., Schmidt, D., Weber, A., Allen, M., Allison, W., Berk, M., Blankenship, D., Browne, K., Bryg, Rj, Caputo, C., Carr, K., Chandrashekhar, Y., Chelliah, N., Courtney, Dl, Deedwania, P., Detrano, R., Dixon, Ew, Dzwonczyk, T., Egbujiobi, L., Erenrich, Nh, Frazier, R., Funai, J., Gammon, Rs, Geer, Vr, Ghali, J., Goldberg, Mc, Goldman, S., Grainer, S., Grewal, G., Hanley, P., Haronian, H., Hermany, R., Karlsberg, R., Kesselbrenner, M., Krantzler, J., Lader, Ew, Lakkis, N., Levites, R., Lewis, Wr, Losordo, Dw, Magorien, R., Minisi, A., Minor, St, Newton, Cm, Nisar, A., Pacheco, Tr, Papuchis, G., Promisloff, S., Puma, J., Rokey, R., Sacco, J., Saeian, K., Schlesinger, R., Sharma, Sc, Shettigar, R., Smith, K., Thadani, U., Thomas, I., Urban, Pl, Vallenkaran, G., Whitaker, J., Yellen, Lg, Zarich, S., Zaroff, J., Adgey, Yja, Brack, M., Bridges, A., Cohen, A., Currie, P., Dwight, Jf, Findlay, I., Foale, R., Gemmill, J., Goodfellow, J., Gray, Ke, Holdright, D., Jennings, K., Keeling, P., Ludman, P., Murphy, C., Oliver, Rm, Rodrigues, E., Smith, Rh, Sprigings, D., Stephens, J., Swan, J., Timmis, A., Vincent, R., Yusuf, S, Mehta, S, Anand, S, Avezum, A, Awan, N, Bertrand, M, Blumenthal, M, Bouthier, J, Budaj, A, Ceremuzynski, L, Chrolavicius, S, Col, J, Commerford, P, Diaz, R, Flather, M, Fox, K, Franzosi, Mg, Gaudin, C, Gersh, B, Grossman, W, Halon, D, Hess, T, Hunt, D, Joyner, C, Karatzas, N, Keltai, M, Khurmi, N, Kopecky, S, Lewis, B, Maggioni, A, Malmberg, K, Moccetti, T, Morais, J, Paolasso, E, Peters, R, Piegas, L, Pipilis, A, Ramos Corrales, Ma, Rupprecht, Hj, Ryden, L, Sitkei, E, Sotty, M, Tognoni, G, Valentin, V, Varigos, J, Widimsky, P, Wittlinger, T, Pogue, J, Copland, I, Cracknell, B, Demers, C, Eikelboom, J, Hall, K, Keys, J, Mcqueen, M, Montague, P, Morris, B, Ounpuu, S, Wright, C, Yacyshyn, V, Zhao, F, Commerford, Pj, Wyse, G, Cairns, J, Hart, R, Hirsh, J, Gent, M, Ryan, T, Wittes, J, Auger, P, Basart, Dcg, Chan, Y, De Raedt, H, den Hartoog, M, Galli, M, Garcia Guerrero, Jj, Marquis, Jf, Mauri, F, Mayosi, B, Natarajan, M, Nieminen, M, Norris, J, Panju, A, Peters, Rj, Renkin, J, Rihal, C, Szymanski, P, Wasek, W, Allende, G, Bono, Jo, Caccavo, A, Fernandez, Aa, Fuselli, Jj, Gambarte, Aj, Guerrero, Raa, Hasbani, Eg, Liprandi, A, Marzetti, E, Mon, G, Nordaby, R, Nul, D, Quijano, G, Salvati, A, San Martin, E, Sokn, F, Torre, H, Trivi, M, Tuero, E, Amerena, J, Bailey, N, Bett, Jhn, Buncle, A, Careless, D, Desilva, S, Ewart, A, Fitzpatrick, D, Garrahy, P, Gunawardane, K, Hamer, A, Hill, A, Jackson, B, Lane, G, Nelson, G, Owensby, D, Rees, D, Rosen, D, Sampson, J, Singh, B, Taylor, R, Thomson, A, Walsh, W, Watson, B, Glogar, H, Steinbach, K, Geutjens, L, Ledune, J, Lescot, C, Popeye, R, Vermeulen, J, Abrantes, Ja, Baruzzi, Ac, Bassan, R, Bodanese, Lc, Carvalho, Ac, Coutinho, M, de Albuquerque, Dc, Dutra, O, Esteves, Jp, Leaes, Pe, Marino, Rl, Neto, Jam, Nicolau, Jc, Rabelo, A, Timerman, A, Xavier, S, Bata, I, Bhargava, Rk, Bogaty, P, Bolduc, P, Boyne, T, Chan, Yk, D'Astous, M, Davies, T, Dhingra, S, Desjardins, L, Douglas, Jg, Fortin, C, Fung, A, Gangbar, E, Gebhardt, V, Gervais, Pb, Giannoccaro, Jp, Gossard, D, Gosselin, G, Grandmont, D, Grover, A, Gupta, M, Hiscock, Jg, Hynd, Jwh, Hussain, M, Iless, A, Kitching, A, Kostuk, W, Kouz, S, Kwok, K, Lee, H, Lefkowitz, C, Lenis, J, Lubelsky, B, Ma, P, May, B, Mercier, M, Montigny, M, Morris, A, Nawaz, S, Pallie, S, Parekh, P, Pesant, Y, Pilon, C, Pistawka, K, Rajakumar, Arj, Rebane, T, Ricci, J, Ruel, M, Schuld, R, Starra, R, Sussex, B, Talbot, P, Theroux, P, Venkatesh, G, Weeks, A, Winkler, Lh, Wisenberg, G, Woo, K, Yu, E, Zadra, R, Bocek, P, Branny, M, Cepelak, V, Drapalik, V, Gregor, P, Groch, L, Jansky, P, Kalslerova, M, Starek, A, Svitil, P, Vaclavicek, A, Husted, S, Rasmussen, Lh, Nielsen, Hk, Hamalainen, T, Majamas Voltti, K, Mustonen, J, Peuhkurinen, K, Raasakka, T, Ylitalo, A, Adam, Mc, Agraou, B, Amat, G, Bessede, G, Boulenc, Jm, Boureux, C, Dambrine, P, Decoulx, E, Delarche, N, Desjoyaux, E, D'Hautefeuille, B, Dubois Rande, Jl, Fadel, N, Fouche, R, Fournier, P, Haftel, Y, Kahn, Jc, Ketelers, Jy, Lallemant, R, Lang, M, Lelguen, C, Leroy, F, Montalescot, G, Poulard, Je, Richard, M, Wittenberg, O, Beythien, Rd, Dippold, Wg, Harenberg, J, Hasslacher, C, Hauptmann, Ke, Hempel, G, Horacek, T, Kaulhausen, A, Kohler, B, Kurz, C, Lengfelder, W, Liebau, G, Loos, U, Neuss, H, Ochs, Hr, Pollock, B, Post, G, Reismann, K, Sauer, M, Schmidt, A, Schmitt, H, Schuster, P, Trenkwalder, P, Uebis, R, von Leitner, Er, Vossbeck, G, Christakos, S, Karidis, K, Kelesidis, K, Papadopoulos, K, Tirologos, A, Tsaknakis, T, Gesztesi, T, Herczeg, B, Janosi, A, Kalo, E, Karpati, P, Mesko, E, Mezofi, M, Poor, F, Regos, L, Rudas, L, Soltesz, P, Szaboki, F, Timar, S, Valyi, P, Zamolyi, K, Daly, Km, Meany, Bt, Sugrue, D, Caspi, A, David, D, Marmor, A, Nazzal, D, Omary, M, Reisin, L, Rosenfeld, T, Shasha, S, Vered, Z, Zimlichman, R, Bellet, C, Bernardi, D, Branzi, A, Ceci, V, Celegon, L, Cernigliaro, C, Corsini, G, Croce, A, De Caterina, R, De Servi, S, Di Biase, G, Di Chiara, A, Di Pasquale, G, Filorizzo, G, Fiorentini, C, Ignone, G, Lombardi, F, Mafrici, A, Margonato, Alberto, Maurea, N, Meneghetti, P, Meniconi, L, Mennuni, M, Mininni, N, Murrone, A, Notaristefan, A, Pettinati, G, Pinelli, G, Rossi, R, Sanna, A, Scabbia, E, Terrosu, P, Trinchero, R, Ruiz, Ra, Diaz, Ac, Santamaria, Ih, Pons, Jll, Diaz, Cj, Castro, Jat, Morales, Ev, Bronzwaer, Pna, de Haan, Hpj, Grosfeld, Mjw, Heijmeriks, Ja, Jochemsen, Gm, Klomps, Hc, Landsaat, Pm, Michels, Hr, Peters, Jrm, van Beek, Gj, van der Hiejden, R, Verheul, Ja, Viergever, Ep, Audeau, M, Bopitiya, U, Hills, M, Ikram, H, Erikssen, J, Morstel, T, Vik Mo, H, Haerem, Jw, Achremczyk, P, Banasiak, W, Burduk, P, Danielewicz, H, Demczuk, M, Dworzanski, W, Frycz, J, Gessek, J, Gorny, J, Janik, K, Jedrzejowski, A, Kawka Urbanek, T, Kozlowski, A, Krasowski, W, Maciejewicz, J, Majcher, Z, Malinowski, S, Marczyk, T, Miekus, P, Ogorek, M, Piepiorka, M, Religa, K, Reszka, Z, Smielak Korombel, W, Susol, D, Szpajer, M, Ujda, M, Waszyrowski, T, Zebrowski, A, Zielinski, Z, Cardoso, P, Carrageta, M, Correia, A, Cunha, D, Ferreira, L, Ferreira, R, Ribeiro, Vg, Tuna, Jl, Gomes, Mv, Aboo, A, Bobak, L, Brown, B, Cassim, S, King, J, Manga, P, Maritz, F, Marx, Jd, Mekel, J, Myburgh, Dp, Routier, R, Orcajo, Na, Asin, E, Colomina, F, del Nogal, F, Echanove, I, Ferriz, J, Alcantara, Ag, Guerrero, Jjg, Juanatey, Jrg, Jodar, L, Lekuona, I, Miralles, L, Llorian, Ar, Rovira, A, San Jose, Jm, Valle, V, Abdon, Nj, Bartholdson, B, Fredholm, O, Kristensson, Be, Messner, T, Moller, Bh, Rasmanis, G, Stjerna, A, Strandberg, Le, Tolhagen, K, Caduff, B, Christen, S, Gallino, A, Haller, A, Noseda, G, Schmidt, D, Weber, A, Allen, M, Allison, W, Berk, M, Blankenship, D, Browne, K, Bryg, Rj, Caputo, C, Carr, K, Chandrashekhar, Y, Chelliah, N, Courtney, Dl, Deedwania, P, Detrano, R, Dixon, Ew, Dzwonczyk, T, Egbujiobi, L, Erenrich, Nh, Frazier, R, Funai, J, Gammon, R, Geer, Vr, Ghali, J, Goldberg, Mc, Goldman, S, Grainer, S, Grewal, G, Hanley, P, Haronian, H, Hermany, R, Karlsberg, R, Kesselbrenner, M, Krantzler, J, Lader, Ew, Lakkis, N, Levites, R, Lewis, Wr, Losordo, Dw, Magorien, R, Minisi, A, Minor, St, Newton, Cm, Nisar, A, Pacheco, Tr, Papuchis, G, Promisloff, S, Puma, J, Rokey, R, Sacco, J, Saeian, K, Schlesinger, R, Sharma, Sc, Shettigar, R, Smith, K, Thadani, U, Thomas, I, Urban, Pl, Vallenkaran, G, Whitaker, J, Yellen, Lg, Zarich, S, Zaroff, J, Adgey, Yja, Brack, M, Bridges, A, Cohen, A, Currie, P, Dwight, Jf, Findlay, I, Foale, R, Gemmill, J, Goodfellow, J, Gray, Ke, Holdright, D, Jennings, K, Keeling, P, Ludman, P, Murphy, C, Oliver, Rm, Rodrigues, E, Smith, Rh, Sprigings, D, Stephens, J, Swan, J, Timmis, A, and Vincent, R.
- Abstract
Background Other than aspirin, there are few oral antithrombotic treatments with proven efficacy in patients with acute coronary syndrome. In this report, we present the rationale, design and baseline characteristics of the Clopidogrel in Unstable angina to prevent Recurrent ischaemic Events (CURE) trial, which includes a meta-analysis of the effects of thienopyridines in patients with vascular disease. Methods and Results Combined data from randomized trials of thienopyrindines in patients with atherosclerotic disease demonstrated a 29% reduction in vascular events when compared with placebo/control (n=2392) (OR 0.71, 95% CI 0.58-0.86, P=0.0006) and a 10% reduction in vascular events when compared with aspirin (n=22 254) (OR 0.91, 95% Cl 0.84-0.99, P=0.039). Similarly, randomized trials of aspirin plus thienopyridines in patients undergoing intracoronary stenting, demonstrated marked benefit of aspirin plus ticlopidine in reducing death or myocardial infarction compared with aspirin alone (OR 0.23, 95% CI 0.11-0.49, P=0.0001) or aspirin plus warfarin (OR 0.51, 95% CI 0.33-0.78, P=0.002). Whether these benefits extend to the much larger population of patients with acute coronary syndrome is unknown. CURE is an international, randomized, double-blind trial, in which patients with acute coronary syndrome will be randomized to receive either a bolus dose of clopidogrel (300 mg) followed by 75 mg per day for 3-12 months, or matching placebo. Both groups will receive aspirin. The co-primary efficacy end-points of CURE are: (1) the composite of cardiovascular death, myocardial infarction or stroke; and (2) the composite of cardiovascular death, myocardial infarction, stroke or refractory ischaemia. CURE will recruit approximately 12 500 patients with acute coronary syndrome (from 28 countries) and its power to detect moderate treatment benefits will be in the region of 80-90%, while maintaining an overall type I error (a) of 0.05. The baseline characteristics of the study population are consistent with at least a moderate risk group of patients with acute coronary syndrome. Conclusions Randomized trials of thienopyridines in patients with vascular disease demonstrate that thienopyridines are effective in reducing vascular events when compared with placebo/control or aspirin, as well as when used in combination with aspirin in patients undergoing intracoronary stent implantation. The CURE trial is a large international study to determine if acute and longterm treatment with the combination of clopidogrel and aspirin is superior to aspirin alone in patients with acute coronary syndrome. (C) 2000 The European Society of Cardiology. RI Nicolau, Jose/E-1487-2012
19. Hospital visitors as controls.
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Armenian, H K, Lakkis, N G, Sibai, A M, and Halabi, S S
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- 1988
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20. Increased concentrations of tirofiban in blood and their correlation with inhibition of platelet aggregation after greater bolus doses of tirofiban.
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Schneider DJ, Herrmann HC, Lakkis N, Aguirre F, Lo M, Yin K, Aggarwal A, Kabbani SS, DiBattiste PM, Schneider, David J, Herrmann, Howard C, Lakkis, Nasser, Aguirre, Frank, Lo, Man Wai, Yin, Kuo Chang, Aggarwal, Atul, Kabbani, Samer S, and DiBattiste, Peter M
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- 2003
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21. Enhanced early inhibition of platelet aggregation with an increased bolus of tirofiban.
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Schneider DJ, Herrmann HC, Lakkis N, Aguirre F, Wan Y, Aggarwal A, Kabbani SS, DiBattiste PM, Schneider, David J, Herrmann, Howard C, Lakkis, Nasser, Aguirre, Frank, Wan, Ying, Aggarwal, Atul, Kabbani, Samer S, and DiBattiste, Peter M
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- 2002
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22. A randomized trial to evaluate the relative protection against post-percutaneous coronary intervention microvascular dysfunction, ischemia, and inflammation among antiplatelet and antithrombotic agents: the PROTECT-TIMI-30 trial.
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Gibson CM, Morrow DA, Murphy SA, Palabrica TM, Jennings LK, Stone PH, Lui HH, Bulle T, Lakkis N, Kovach R, Cohen DJ, Fish P, McCabe CH, Braunwald E, TIMI Study Group, Gibson, C Michael, Morrow, David A, Murphy, Sabina A, Palabrica, Theresa M, and Jennings, Lisa K
- Abstract
Objectives: The goal of this study was to evaluate glycoprotein IIb/IIIa inhibition with eptifibatide when administered with indirect thrombin inhibition as compared with monotherapy with direct thrombin inhibition with bivalirudin among patients with non-ST-segment elevation acute coronary syndromes (ACS).Background: The optimal combination of antiplatelet and antithrombin regimens that maximizes efficacy and minimizes bleeding among patients with non-ST-segment elevation ACS undergoing percutaneous coronary intervention (PCI) is unclear.Methods: A total of 857 patients with non-ST-segment elevation ACS were assigned randomly to eptifibatide + reduced dose unfractionated heparin (n = 298), eptifibatide + reduced-dose enoxaparin (n = 275), or bivalirudin monotherapy (n = 284).Results: Among angiographically evaluable patients (n = 754), the primary end point of post-PCI coronary flow reserve was significantly greater with bivalirudin (1.43 vs. 1.33 for pooled eptifibatide arms, p = 0.036). Thrombolysis In Myocardial Infarction (TIMI) myocardial perfusion grade more often was normal with eptifibatide treatment compared with bivalirudin (57.9% vs. 50.9%, p = 0.048). The duration of ischemia on continuous Holter monitoring after PCI was significantly longer among patients treated with bivalirudin (169 vs. 36 min, p = 0.013). There was no excess of TIMI major bleeding among patients treated with eptifibatide compared with bivalirudin (0.7%, n = 4 vs. 0%, p = NS), but TIMI minor bleeding was increased (2.5% vs. 0.4%, p = 0.027) as was transfusion (4.4% to 0.4%, p < 0.001).Conclusions: Among moderate- to high-risk patients with ACS undergoing PCI, coronary flow reserve was greater with bivalirudin than eptifibatide. Eptifibatide improved myocardial perfusion and reduced the duration of post-PCI ischemia but was associated with higher minor bleeding and transfusion rates. Ischemic events and biomarkers for myonecrosis, inflammation, and thrombin generation did not differ between agents. [ABSTRACT FROM AUTHOR]- Published
- 2006
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23. Correlates of bleeding events among moderate- to high-risk patients undergoing percutaneous coronary intervention and treated with eptifibatide: observations from the PROTECT-TIMI-30 trial.
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Kirtane AJ, Piazza G, Murphy SA, Budiu D, Morrow DA, Cohen DJ, Peterson E, Lakkis N, Herrmann HC, Palabrica TM, Gibson CM, TIMI Study Group, Kirtane, Ajay J, Piazza, Gregory, Murphy, Sabina A, Budiu, Daniela, Morrow, David A, Cohen, David J, Peterson, Eric, and Lakkis, Nasser
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Objectives: We aimed to identify correlates of Thrombolysis In Mycocardial Infarction (TIMI) major/minor bleeding among eptifibatide-treated patients undergoing percutaneous coronary intervention (PCI).Background: Evaluation of bleeding predictors among patients treated with glycoprotein IIb/IIIa receptor inhibition might aid in the identification of targets to reduce bleeding risk.Methods: Data were analyzed from 567 moderate- to high-risk PCI patients with non-ST-segment elevation acute coronary syndrome (NSTEACS) treated with eptifibatide/reduced-dose unfractionated heparin or eptifibatide/reduced-dose enoxaparin enrolled in the Randomized Trial to Evaluate the Relative Protection Against Post-PCI Microvascular Dysfunction and Post-PCI Ischemia Among Anti-Platelet and Anti-Thrombotic Agents-Thrombolysis In Myocardial Infarction-30 (PROTECT-TIMI-30).Results: The incidence of significant bleeding was 3.2% with a median time to event of 7.0 h after the first eptifibatide bolus. Increased age was the only independent correlate of bleeding events. Among patients with reduced creatinine clearance (CrCl), lack of adjustment of the maintenance infusion for CrCl < or =50 ml/min occurred frequently (15 of 33 patients, or 45%) and was associated with a high rate of bleeding (20%). The association of CrCl with bleeding appeared to be largely mediated by the incorporation of age in the estimation of CrCl. Patient gender, Cr, weight, and the peak activated clotting time were not associated with bleeding.Conclusions: Among NSTEACS PCI patients treated with eptifibatide, increased age was a significant correlate of bleeding events and appeared to explain the association between low CrCl and bleeding. The more widespread use of CrCl or other estimates of renal function over Cr may lead to more appropriate dose adjustments of eptifibatide. [ABSTRACT FROM AUTHOR]- Published
- 2006
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24. Comparison of effects of bare metal versus drug-eluting stent implantation on biomarker levels following percutaneous coronary intervention for non-ST-elevation acute coronary syndrome.
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Gibson CM, Karmpaliotis D, Kosmidou I, Murphy SA, Kirtane AJ, Budiu D, Ray KK, Herrmann HC, Lakkis N, Kovach R, French W, Blankenship J, Lui HH, Palabrica T, Jennings LK, Cohen DJ, Morrow DA, TIMI Study Group, Gibson, C Michael, and Karmpaliotis, Dimitri
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Drug-eluting stents (DESs) deliver biphasic (early and late) elution of anti-inflammatory compounds. We therefore hypothesized that DESs would be associated with early reductions in inflammatory biomarker release after percutaneous coronary intervention (PCI). A total of 741 patients with non-ST-elevation acute coronary syndrome underwent PCI in the Randomized Trial to Evaluate the Relative PROTECTion against Post-PCI Microvascular Dysfunction and Post-PCI Ischemia among Anti-Platelet and Anti-Thrombotic Agents (PROTECT) Thrombolysis In Myocardial Infarction 30 study of eptifibatide and reduced-dose antithrombin compared with bivalirudin. Serial biomarkers C-reactive protein, troponin, creatine kinase-MB, soluble CD40 ligand, interleukin-6, prothrombin fragment F1.2, and RANTES (regulated on activation, normal T-cell expressed and secreted) were assessed through 24 hours after PCI. DES use was at the investigator's discretion. Patients treated with DESs (n = 665) versus bare metal stents (n = 139) were more likely to have patent arteries before PCI (92.0% vs 86.6%, p = 0.04), Thrombolysis In Myocardial Infarction myocardial perfusion grade 3 (57.9% vs 47.7%, p = 0.033), and the left anterior descending artery as the culprit artery (38.5% vs 18.3%, p <0.001). The increase in C-reactive protein and troponin was lower among patients undergoing DES implantation (median 2.1 vs 3.5 mg/L for C-reactive protein, median 0.11 vs 0.41 ng/ml for troponin), even after adjustment for randomized treatment, clopidogrel before treatment, diabetes mellitus status, epicardial patency, left anterior descending artery location, and myocardial perfusion (p = 0.036 and p = 0.039, respectively). Interleukin-6 was lower with DESs on univariate analysis but not multivariate analysis. Creatine kinase-MB, soluble sCD40 ligand, prothrombin fragment F1.2, and RANTES did not differ by DES use. In conclusion, patients undergoing DES implantation achieved more reductions in periprocedural markers of inflammation and necrosis than patients receiving bare metal stents among those with non-ST-elevation acute coronary syndrome. [ABSTRACT FROM AUTHOR]
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- 2006
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25. Effect of abciximab versus tirofiban on activated clotting time during percutaneous intervention and its relation to clinical outcomes--observations from the TARGET trial.
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Casserly IP, Topol EJ, Jia G, Lange RA, Hamm C, Meier B, DiBattiste PM, Lakkis N, Chew DP, Stone GW, Cohen DJ, Moliterno DJ, Casserly, Ivan P, Topol, Eric J, Jia, Gang, Lange, Richard A, Hamm, Christian, Meier, Bernhard, DiBattiste, Peter M, and Lakkis, Nasser
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Previous evidence suggests that the monoclonal antibody abciximab may have a more potent anticoagulant effect than small-molecule glycoprotein (GP) IIb/IIIa inhibitors. We prospectively reviewed collected heparin dose, activated clotting time (ACT), and corresponding clinical outcome data from The Do Tirofiban and ReoPro Give Similar Efficacy Outcome Trial (TARGET), a direct comparison of tirofiban versus abciximab in patients who underwent percutaneous intervention. Of the 4,809 patients enrolled in the trial, 3,739 patients (78%) had an ACT measured after the administration of GP IIb/IIIa and heparin (peak procedural ACT); this formed the population for the present study. Mean total heparin dose was 75 +/- 32 and 76 +/- 31 U/kg in the tirofiban and abciximab groups, respectively. The resultant mean peak ACTs were 296 +/- 91 and 299 +/- 89 seconds (p = 0.09). In a subset of patients with both baseline ACT (before any heparin or GP IIb/IIIa therapy) and peak procedural ACT measurements, the difference in ACT between these time points was 80 +/- 97 vs 82 +/- 101 seconds (p = 0.44) for the tirofiban and abciximab groups, respectively. After adjusting for patients' weight, weight-adjusted heparin dose, and method of ACT measurement in a multiple linear regression analysis, the type of GP IIb/IIIa inhibitor was not predictive of the peak ACT (p = 0.24). When stratified by ACT quartile, no statistically significant difference in bleeding or ischemic end points between the tirofiban and abciximab cohorts was observed. In this large contemporary percutaneous coronary intervention trial, there was no observed difference in the anticoagulant effect of tirofiban and abciximab, as measured by the ACT, or in the incidence of bleeding or ischemic complications in each ACT quartile. [ABSTRACT FROM AUTHOR]
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- 2003
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26. Efficacy of nonsurgical septal reduction therapy in symptomatic patients with obstructive hypertrophic cardiomyopathy and provocable gradients.
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Lakkis, Nasser, Plana, Juan Carlos, Nagueh, Sherif, Killip, Donna, Roberts, Robert, Spencer III, William H., Lakkis, N, Plana, J C, Nagueh, S, Killip, D, Roberts, R, and Spencer, W H 3rd
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HYPERTROPHIC cardiomyopathy , *VENTRICULAR septal defects , *DYSPNEA , *CARDIAC catheterization , *CLINICAL trials , *COMPARATIVE studies , *DOBUTAMINE , *ETHANOL , *CARDIAC hypertrophy , *HEART function tests , *HEART septum , *HEMODYNAMICS , *INJECTIONS , *LONGITUDINAL method , *RESEARCH methodology , *MEDICAL cooperation , *PROBABILITY theory , *RESEARCH , *EVALUATION research , *TREATMENT effectiveness , *SEVERITY of illness index , *VENTRICULAR outflow obstruction , *DISEASE complications - Abstract
Studies the efficacy of nonsurgical septal reduction therapy in symptomatic patients with obstructive hypertrophic cardiomyopathy (HC) and provocable gradients. Baseline characteristics of patients involved in the study; Improvement in the severity of patients' dyspnea after nonsurgical septal reduction therapy; Decrease in the basal septal thickness.
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- 2001
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27. Comparison of early invasive and conservative strategies in patients with unstable coronary syndromes treated with the glycoprotein IIb/IIIa inhibitor tirofiban.
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Cannon CP, Weintraub WS, Demopoulos LA, Vicari R, Frey MJ, Lakkis N, Neumann F, Robertson DH, DeLucca PT, DiBattiste PM, Gibson CM, Braunwald E, and Treat Angina with Aggrastat and Determine Cost of Therapy with an Invasive or Conservative Strategy-Thrombolysis in Myocardial Infarction 18 Investigators
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- 2001
28. Incidence and predictors of acute coronary syndrome after transcatheter mitral valve repair.
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Goel M, Shafi I, Elmoghrabi A, Ramaseshan K, Uddin MM, Lakkis N, and Alraies C
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- Humans, Female, Male, Incidence, Aged, Risk Factors, Middle Aged, United States epidemiology, Aged, 80 and over, Retrospective Studies, Length of Stay statistics & numerical data, Mitral Valve surgery, Patient Readmission statistics & numerical data, Acute Coronary Syndrome epidemiology, Hospital Mortality, Mitral Valve Insufficiency surgery, Heart Valve Prosthesis Implantation adverse effects, Heart Valve Prosthesis Implantation methods, Cardiac Catheterization adverse effects, Cardiac Catheterization methods, Databases, Factual
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Background: Acute coronary syndrome (ACS) post-transcatheter mitral valve repair (TMVR) carries high mortality. We aim to study the incidence and predictors of ACS in patients who underwent TMVR., Research Design and Methods: We queried the U.S. National Readmission Database to identify all cases of TMVR from 2016 to 2019. We further evaluated the incidence of ACS and used multivariable logistic regression to determine independent predictors of ACS in this population., Results: Among 3,742 patients who underwent TMVR, 264 (7.05%) developed ACS. Among ACS patients, 204 (77%) had non-ST-segment elevation ACS and 66 (25%) had ST-segment elevation ACS. Independent predictors of ACS were acute limb ischemia, cardiogenic shock, history of coronary artery disease (CAD), smoking, cardiac arrest, respiratory failure requiring mechanical ventilation, and acute kidney injury. In-hospital mortality among ACS was three times higher in ACS patients than without ACS (16.76% vs. 5.45%, p-value < 0.01)., Conclusions: ACS is not an uncommon complication after TMVR. The occurrence of ACS after TMVR is associated with high in-hospital mortality, longer length of stay, and higher hospital charges. The strongest predictors of ACS in these patients are the development of acute limb ischemia, cardiogenic shock, and a history of CAD.
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- 2024
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29. Major Complications and Failure Modes of the Angiosculpt Scoring Balloon Catheter: Analysis of the MAUDE Database.
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Dayco JS, Osman H, Almas T, Manasrah N, Saleem A, Alhusain R, Awadelkarim A, Dirani K, Sokolowski C, Lakkis N, and Alraies MC
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- Humans, Treatment Outcome, Catheters, Coronary Vessels
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Since its Food and Drug Administration approval in January 2007, the Angiosculpt scoring balloon catheter has been widely utilized in severely calcified stenotic vascular lesions. We sought to characterize the complication rates, failure modes, and outcomes associated with the Angiosculpt catheter. Using queried events from October 2013 to December 2020 from the Food and Drug Administration Manufacturer and User Facility Device Experience database, we analyzed the Angiosculpt scoring balloon catheter complication rates and mode of failure. A total of 248 complications were reported. Most reported complications occurred in the superficial femoral artery (SFA) (19.4%, n = 48), followed by the left anterior descending artery (8.1%, n = 20). Severe vessel calcifications were reported in (26.6%, n = 66) of the complications. Most complications occurred with damage to the device, such as tip break (44.8%, n = 111) and balloon rupture (26.6%, n = 66). Some complications were due to difficulties in the withdrawal of the catheter (23.8%, n = 59). Balloon rupture is observed at a significantly higher rate amongst calcified vessels (60.6% vs 14.8%), P = < 0.001, and in cases involving the SFA (39.4% vs 11.3%), P = < 0.001. All-cause complications in calcified vessels are associated with the SFA (39.4% vs 12.5%), P = < 0.001, and left anterior descending artery (16.7% vs 5.1%), P = < 0.001. The Angiosculpt scoring balloon catheter has a relatively low complication rate. Most complications were associated with a device tip break, balloon rupture, and difficulties in withdrawal in severely calcified vessels., (Copyright © 2022 Elsevier Inc. All rights reserved.)
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- 2023
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30. Outcomes of Catheter-Based Pulmonary Artery Embolectomy in Patients With Sub-Massive to Massive Pulmonary Embolism.
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Elmoghrabi A, Shafi I, Abdelrahman A, Osman H, Manasrah N, Zghouzi M, Halboni A, Patino S, Patel NN, Hakim Z, Gardi D, Lakkis N, and Alraies MC
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Background Pulmonary embolism (PE) is the third leading cause of cardiovascular death after myocardial infarction and stroke. The ideal therapeutic approach for these patients remains undetermined. We report our single-center outcome data for using a catheter-based pulmonary artery thrombectomy using the FlowTriever (Inari Medical, Irvine, CA) device as management for patients with submassive PE. Methods We retrospectively collected data from a single center of patients who underwent thrombectomy using INARI FlowTriever device. The data on baseline characteristics, procedural and clinical outcomes was collected and analysed Results A total of 38 patients with PE treated endovascularly with the FlowTriever device were identified: 33 with submassive PE and five with massive PE. The mean age was 65.9 years (95% CI 61.9 - 69.8), and most patients were male (73.7%). All patients had right heart strain as the main indication for thrombectomy. Four patients (10.53%) required pressor support before the procedure. In 31 patients, pre- and post-thrombectomy average mean pulmonary artery pressure (mPAP) was improved significantly by 22% (p < 0.01). Two patients had significant adverse events at 48 hours (5.26%). One patient experienced procedure-related access site hematoma and life-threatening bleeding, while another developed intraprocedural-related massive hemoptysis and cardiopulmonary arrest. Overall post-procedural length of stay was 7.7 ± 5.6 days; 52.63% of patients (n = 20) required intensive care. Three patients (7.89%) required pressor support before the procedure, and 78.9% of patients (n = 30 of 38) survived hospital discharge. Thirty patients who survived were discharged with oral anticoagulation. There were no device-related complications. Conclusion Randomized trials of interventional devices for submassive PE are warranted to either support or alert the medical community of the safety and efficacy of their use for patients with submassive and massive PE. In time, pulmonary embolism response team (PERT) may generate outcome data that better inform treatment decisions., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2023, Elmoghrabi et al.)
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- 2023
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31. Cardiovascular outcomes of transradial versus transfemoral percutaneous coronary intervention in End-Stage renal Disease: A Regression-Based comparison.
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Sattar Y, Faisaluddin M, Almas T, Alhajri N, Shah R, Zghouzi M, Zafrullah F, Sengodon PM, Zia Khan M, Ullah W, Alam M, Balla S, Lakkis N, Kawsara A, Daggubati R, and Chadi Alraies M
- Abstract
Background: Limited data is available on the comparison of outcomes of transradial (TR) and transfemoral (TF) access for percutaneous coronary intervention (PCI) in patients with end-stage stage renal disease (ESRD)., Methods: Online databases were queried to compare cardiovascular outcomes among TR. and TF in ESRD patients. The outcomes assessed included differences in mortality, cerebrovascular accidents (CVA), periprocedural myocardial infarction (MI), bleeding, transfusion, and periprocedural cardiogenic shock (CS). Unadjusted odds ratios (OR) were calculated using a random-effect effect model., Results: A total of 6 studies including 7,607 patients (TR-PCI = 1,288; TF-PCI = 6,319) were included. The overall mean age was 67.7 years, while the mean age for TR-PCI and TF-PCI was 69.7 years and 67.9 years, respectively. TR-PCI was associated with lower incidence of mortality (OR 0.46 95 % CI 0.30-0.70, p < 0.05, I2 0.00 %), bleeding (OR 0.45 95 % CI 0.29, 0.68, p < 0.05, I2 3.48 %), and transfusion requirement (OR 0.52 95 % CI 0.40, 0.67, p < 0.05, I2 0.00 %) (Fig. 1). There were no differences among TR-PCI and TF-PCI for periprocedural MI, periprocedural CS, and CVA outcomes., Conclusion: TR access was associated with lower mortality, bleeding, and transfusion requirement as compared to TF access in patients with ESRD undergoing PCI., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2022 Published by Elsevier B.V.)
- Published
- 2022
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32. Safety and efficacy of transcatheter aortic valve implantation in stenotic bicuspid aortic valve compared to tricuspid aortic valve: a systematic review and meta-analysis.
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Zghouzi M, Osman H, Ullah W, Suleiman AR, Razvi P, Abdalrazzak M, Rabbat F, Alraiyes M, Sattar Y, Bagur R, Paul T, Matetic A, Mamas MA, Lakkis N, and Alraies MC
- Subjects
- Aortic Valve surgery, Constriction, Pathologic surgery, Humans, Treatment Outcome, Aortic Valve Stenosis surgery, Bicuspid Aortic Valve Disease, Heart Valve Diseases surgery, Transcatheter Aortic Valve Replacement adverse effects
- Abstract
Background: Transcatheter aortic valve implantation (TAVI) has emerged as a safe and effective alternative to surgical replacement for tricuspid aortic valve (TAV) stenosis. However, utilization of TAVI for aortic stenosis in bicuspid aortic valve (BAV) compared to TAV remains controversial., Methods: We queried online databases with various keywords to identify relevant articles. We compared major cardiovascular events and procedural outcomes using a random effect model to calculate odds ratios (OR)., Results: We included a total of 22 studies comprising 189,693 patients (BAV 12,669 vs. TAV 177,024). In the pooled analysis, there were no difference in TAVI for BAV vs. TAV for all-cause mortality, cardiovascular mortality, myocardial infarction (MI), vascular complications, acute kidney injury (AKI), coronary occlusion, annulus rupture, and reintervention/reoperation between the groups. The incidence of stroke (OR 1.24; 95% CI 1.1-1.39), paravalvular leak (PVLR) (OR 1.42; 95% CI 1.26-1.61), and the need for pacemaker (OR 1.15; 95% CI 1.06-1.26) was less in the TAV group compared to the BAV group, while incidence of life-threatening bleeding was higher in the TAV group. Subgroup analysis mirrored pooled outcomes except for all-cause mortality., Conclusion: The use of TAVI for the treatment of aortic stenosis in selective BAV appears to be safe and effective.
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- 2022
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33. Turnpike Catheter failure, causes and mechanisms: Insights from the MAUDE database.
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Alhusain R, Dayco J, Awadelkarim A, Almas T, Halboni A, Ahmed AK, Elhussein M, Zghouzi M, Ullah W, Sattar Y, Mamas MA, Lakkis N, and Alraies MC
- Abstract
Background: The Turnpike catheters (Teleflex, Wayne, PA, USA) is a microcatheter that was approved by the Food and Drug Administration in November 2014 to be used to access discrete regions of the coronary and peripheral vasculature., Methods: The Manufacturer and User Facility Device Experience (MAUDE) database was queried for reports of the Turnpike catheters from March 2015 through August 2021., Results: A total of 216 reports were found during the study period. After excluding duplicate reports (n = 21), our final cohort included 195 reports. The most common failure mode was catheter tip break or detachment (83%, n = 165) which was significantly associated with over-torquing (p-value = 0.025). The most common clinical consequence was the entrapment of the catheter (33%, n = 65), followed by vessel injury (7.8% n = 15) and vessel occlusion (3.6%, n = 7). Most patients had no consequences (47.0%, n = 93) or recovered (11%, n = 22). A total of 4 deaths were reported. 35.8% of reports (n = 69) specified the presence of severe calcification in the target vessel. Over torquing by interventionists was reported in 33.2% of events (n = 64)., Conclusion: Despite clinical trials demonstrating the safety of the Turnpike catheters, complications can still occur. These data serve to inform operators about potentional risks and complications associated with the use of the device. Physicians should avoid over-torqueing which seems to be the most common mechanism for device complications., Competing Interests: None of the authors have any conflict of interest., (© 2022 The Authors.)
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- 2022
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34. Rare silent ischemic ventricular septal aneurysm and rupture: A multimodality diagnostic approach.
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Nguyen HL, Palaskas N, Lakkis N, and Tabbaa R
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A multimodality approach in addition to high level of clinical suspicion and thorough physical examination is important in the diagnosis and management of left ventricular aneurysm and rupture after a silent inferior infarction., Competing Interests: None declared., (© 2021 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.)
- Published
- 2021
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35. Multivessel Traumatic Coronary Artery Dissection After a Motor Vehicle Accident With Successful Percutaneous Coronary Intervention.
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Pandey Y, Owen B, Birnbaum G, Tabbaa R, Hamzeh I, Lakkis N, and Kayani W
- Abstract
Coronary artery dissection is a rare complication of blunt chest wall trauma. We report a case of acute left anterior descending and right coronary artery dissections after a motor vehicle accident. The musculoskeletal injuries obscured the cardiac symptoms. Electrocardiogram and bedside echocardiogram revealed cardiac pathology, which prompted urgent coronary angiography and intervention. ( Level of Difficulty: Advanced. )., Competing Interests: The authors have reported that they have no relationships relevant to the contents of this paper to disclose., (© 2020 The Authors.)
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- 2020
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36. Primary Percutaneous Coronary Intervention or Fibrinolytic Therapy in COVID 19 Patients Presenting With ST-Segment Elevation Myocardial Infarction.
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Sudhakar D, Jneid H, Lakkis N, and Kayani WT
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- Aged, COVID-19, Comorbidity, Electrocardiography, Female, Humans, Male, Middle Aged, Pandemics, SARS-CoV-2, ST Elevation Myocardial Infarction epidemiology, Treatment Outcome, Betacoronavirus, Coronavirus Infections epidemiology, Percutaneous Coronary Intervention methods, Pneumonia, Viral epidemiology, ST Elevation Myocardial Infarction therapy, Thrombolytic Therapy methods
- Published
- 2020
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37. Prescription Patterns of Clopidogrel, Prasugrel, and Ticagrelor After Percutaneous Coronary Intervention With Stent Implantation (from the NCDR PINNACLE Registry).
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Khalid U, Bandeali S, Jones PG, Virani SS, Hira R, Hamzeh I, Chan PS, Kleiman NS, Lakkis N, and Alam M
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- Aged, Bayes Theorem, Cohort Studies, Combined Modality Therapy, Coronary Angiography methods, Coronary Stenosis diagnostic imaging, Coronary Stenosis mortality, Drug-Eluting Stents, Female, Humans, Logistic Models, Male, Middle Aged, Platelet Aggregation Inhibitors therapeutic use, Prescriptions statistics & numerical data, Registries, Retrospective Studies, Severity of Illness Index, Survival Analysis, Treatment Outcome, United States, Clopidogrel therapeutic use, Coronary Stenosis therapy, Drug Utilization statistics & numerical data, Percutaneous Coronary Intervention methods, Prasugrel Hydrochloride therapeutic use, Ticagrelor therapeutic use
- Abstract
The use of prasugrel and ticagrelor as part of dual antiplatelet therapy is increasing in patients after percutaneous coronary intervention (PCI). Accordingly, we aimed to evaluate their prescription patterns in the National Cardiovascular Data Registry (NCDR) Practice Innovation and Clinical Excellence (PINNACLE) registry. We analyzed patients enrolled in NCDR PINNACLE registry from January 2013 to March 2015 who underwent PCI with drug-eluting stent and were prescribed dual antiplatelet therapy. All patients received aspirin. The primary study outcome was a 3-level variable denoting the second antiplatelet agent prescribed: (1) clopidogrel, (2) prasugrel, or (3) ticagrelor. Baseline characteristics were compared among the 3 groups. Odds ratios and 95% credible intervals were calculated from a nested hierarchical Bayesian logistic regression models to identify independent predictors of prescription of antiplatelet medications, incorporating practice and provider as random effects. Our study cohort consisted of 26,710 patients during our study period January 2013 to March 2015. Seventy nine percent of patients were prescribed clopidogrel, 12% prasugrel, and 11% ticagrelor. Patients aged ≥75 years, women, history of tobacco use, Peripheral Arterial Disease (PAD), hypertension, diabetes, previous vascular complication, heart failure, and stroke/transient ischemic attack were more likely to be on clopidogrel than prasugrel or ticagrelor. The relative percentages of ticagrelor and prasugrel were higher in patients with history of myocardial infarction, compared with those without myocardial infarction. In summary, our study highlights the prescription patterns associated with prescription of antiplatelet agents after PCI. We found that both ticagrelor and prasugrel were mostly prescribed per the current practice guidelines, thus reflecting appropriate guideline adherence by practices in NCDR PINNACLE registry., (Copyright © 2019 Elsevier Inc. All rights reserved.)
- Published
- 2019
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38. Effect of increasing age on percutaneous coronary intervention vs coronary artery bypass grafting in older adults with unprotected left main coronary artery disease: A meta-analysis and meta-regression.
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Khan MR, Kayani WT, Ahmad W, Manan M, Hira RS, Hamzeh I, Jneid H, Virani SS, Kleiman N, Lakkis N, and Alam M
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- Age Factors, Aged, Coronary Artery Disease epidemiology, Global Health, Humans, Morbidity trends, Risk Factors, Survival Rate trends, Coronary Artery Bypass methods, Coronary Artery Disease surgery, Percutaneous Coronary Intervention methods, Postoperative Complications epidemiology, Risk Assessment
- Abstract
Background: Older adults (≥70-year-old) are under-represented in the published data pertaining to unprotected left main coronary artery disease (ULMCAD)., Hypothesis: Percutaneous coronary intervention (PCI) might be comparable to coronary artery bypass grafting (CABG) for revascularization of ULMCAD., Methods: We compared PCI versus CABG in older adults with ULMCAD with an aggregate data meta-analyses (4880 patients) of clinical outcomes [all-cause mortality, myocardial infarction (MI), repeat revascularization, stroke and major adverse cardiac and cerebrovascular events(MACCE)] at 30 days, 12-24 months & ≥36 months in patients with mean age ≥70 years and ULMCAD. A meta-regression analysis evaluated the effect of age on mortality after PCI. Odds ratios (OR) and 95% confidence intervals (CI) were estimated using random-effects model., Results: All-cause mortality between PCI and CABG was comparable at 30-days (OR0.77, 95% CI 0.42- 1.41) and 12-24-months (OR 1.22, 95% CI 0.78-1.93). PCI was associated with a markedly lower rate of stroke at 30-day follow-up in octogenarians (OR 0.14, 95% CI 0.02-0.76) but an overall higher rate of repeat revascularization. At ≥36-months, MACCE (OR 1.26,95% CI 0.99-1.60) and all-cause mortality (OR 1.39, 95% CI 1.00-1.93) showed a trend favoring CABG but did not reach statistical significance. On meta-regression, PCI was associated with a higher mortality with advancing age (coefficient=0.1033, p=0.042)., Conclusions: PCI was associated with a markedly lower rate of early stroke in octogenarians as compared to CABG. All-cause mortality was comparable between the two arms with a trend favoring CABG at ≥36-months.PCI was however associated with increasing mortality with advancing age as compared to CABG., (© 2019 The Authors. Clinical Cardiology published by Wiley Periodicals, Inc.)
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- 2019
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39. Outcomes of beta blocker use in cocaine-associated chest pain: a meta-analysis.
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Pham D, Addison D, Kayani W, Misra A, Jneid H, Resar J, Lakkis N, and Alam M
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- Humans, Atenolol pharmacology, Atenolol therapeutic use, Bisoprolol pharmacology, Bisoprolol therapeutic use, Carvedilol pharmacology, Carvedilol therapeutic use, Metoprolol pharmacology, Metoprolol therapeutic use, Propanolamines pharmacology, Propanolamines therapeutic use, Propranolol pharmacology, Propranolol therapeutic use, Acute Coronary Syndrome drug therapy, Acute Coronary Syndrome etiology, Adrenergic beta-Antagonists pharmacology, Adrenergic beta-Antagonists therapeutic use, Cocaine adverse effects
- Abstract
Objectives: Beta blockers (β-blockers) remain a standard therapy in the early treatment of acute coronary syndromes. However, β-blocker therapy in patients with cocaine-associated chest pain (CACP) continues to be an area of debate due to the potential risk of unopposed α-adrenergic stimulation and coronary vasospasm. Therefore, we performed a systematic review and meta-analysis of available studies to compare outcomes of β-blocker versus no β-blocker use among patients with CACP., Methods: We searched the MEDLINE and EMBASE databases through September 2016 using the keywords 'beta blocker', 'cocaine' and commonly used β-blockers ('atenolol', 'bisoprolol', 'carvedilol', 'esmolol', 'metoprolol' and 'propranolol') to identify studies evaluating β-blocker use among patients with CACP. We specifically focused on studies comparing outcomes between β-blocker versus no β-blocker usage in patients with CACP. Studies without a comparison between β-blocker and no β-blocker use were excluded. Outcomes of interest included non-fatal myocardial infarction (MI) and all-cause mortality. Quantitative data synthesis was performed using a random-effects model and heterogeneity was assessed using Q and I
2 statistics., Results: A total of five studies evaluating 1794 subjects were included. Overall, there was no significant difference on MI in patients with CACP on β-blocker versus no β-blocker (OR 1.36, 95% CI 0.68 to 2.75; p=0.39). Similarly, there was no significant difference in all-cause mortality in patients on β-blocker versus no β-blocker (OR 0.68, 95% CI 0.26 to 1.79; p=0.43)., Conclusions: In patients presenting with acute chest pain and underlying cocaine, β-blocker use does not appear to be associated with an increased risk of MI or all-cause mortality., Competing Interests: Competing interests: None declared., (© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.)- Published
- 2018
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40. Adoption of positive health behaviour among primary care physicians: a cross-sectional pilot study from Lebanon.
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Taleb R, Shaarani I, Lakkis N, El-Jarrah R, and Osman M
- Abstract
Competing Interests: The authors declare that no competing interests exist.
- Published
- 2018
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41. A Double Whammy: Severe Aortic Stenosis and Cocaine Overwhelm the Mitral Valve.
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Maini R, Lim J, Liu J, Birnbaum I, Mirza F, Lakkis N, and Hamzeh I
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- Aortic Valve Stenosis diagnostic imaging, Aortic Valve Stenosis physiopathology, Aortic Valve Stenosis surgery, Cocaine-Related Disorders diagnosis, Cocaine-Related Disorders physiopathology, Echocardiography, Doppler, Color, Heart Failure etiology, Heart Valve Prosthesis Implantation, Humans, Male, Middle Aged, Mitral Valve diagnostic imaging, Mitral Valve surgery, Mitral Valve Insufficiency diagnostic imaging, Mitral Valve Insufficiency physiopathology, Mitral Valve Insufficiency surgery, Mitral Valve Prolapse diagnostic imaging, Mitral Valve Prolapse physiopathology, Mitral Valve Prolapse surgery, Severity of Illness Index, Shock, Cardiogenic etiology, Treatment Outcome, Ventricular Function, Left drug effects, Ventricular Pressure drug effects, Aortic Valve Stenosis complications, Cocaine-Related Disorders complications, Mitral Valve physiopathology, Mitral Valve Insufficiency etiology, Mitral Valve Prolapse complications
- Abstract
A 50-year-old man presented with acute onset dyspnea following cocaine use. He had severe aortic stenosis (AS), mild mitral regurgitation (MR) due to mitral valve prolapse, and no coronary artery disease on recent coronary angiography. He was in acute heart failure with signs of impending cardiogenic shock. Urgent bedside echocardiography revealed hyperdynamic left ventricular systolic function with acute severe MR from a ruptured chordae tendineae. The acute cocaine-induced spike of his already elevated left ventricular systolic pressure from severe AS likely precipitated chordal rupture of his vulnerable mitral valve. This patient underwent emergent mitral and aortic valve replacements. Although cocaine use has been associated with a myriad of cardiovascular complications, acute MR due to chordal rupture has not, to our knowledge, been previously reported in this setting. Prompt diagnosis with echocardiography and surgical intervention are of paramount importance in the management of acute MR., Competing Interests: Conflict of Interest Disclosure: The authors have completed and submitted the Methodist DeBakey Cardiovascular Journal Conflict of Interest Statement and none were reported.
- Published
- 2018
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42. Meta-Analysis of Comparison of 5-Year Outcomes of Percutaneous Coronary Intervention Versus Coronary Artery Bypass Grafting in Patients With Unprotected Left Main Coronary Artery in the Era of Drug-eluting Stents.
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Khan MR, Kayani WT, Ahmad W, Hira RS, Virani SS, Hamzeh I, Jneid H, Lakkis N, and Alam M
- Subjects
- Humans, Time Factors, Treatment Outcome, Coronary Artery Bypass, Coronary Artery Disease surgery, Drug-Eluting Stents, Percutaneous Coronary Intervention
- Abstract
Patients with unprotected left main coronary artery (ULMCA) disease are increasingly being treated with percutaneous coronary intervention (PCI) using drug-eluting stents (DES), but long-term outcomes comparing PCI with coronary artery bypass grafting (CABG) remain limited. We performed aggregate data meta-analyses of clinical outcomes (all-cause death, nonfatal myocardial infarction, stroke, repeat revascularization, cardiac death, and major adverse cardiac and cerebrovascular events) in studies comparing 5-year outcomes of PCI with DES versus CABG in patients with ULMCA disease. A comprehensive literature search (January 1, 2003 to December 10, 2016) identified 9 studies (6,637 patients). Effect size for individual clinical outcomes was estimated using odds ratio (OR) with 95% confidence intervals (CI) using a random effects model. At 5 years, PCI with DES was associated with equivalent cardiac (OR 0.95, 95% CI 0.62 to 1.46) and all-cause mortality (OR 0.98, 95% CI 0.72 to 1.33), lower rates of stroke (OR 0.50, 95% CI 0.30 to 0.84), and higher rates of repeat revascularization (OR 2.52, 95% CI 1.63 to 3.91); compared with CABG, major adverse cardiac and cerebrovascular events showed a trend favoring CABG but did not reach statistical significance (OR 1.19, 95% CI 0.93 to 1.54). In conclusion, for ULMCA disease, PCI can be considered as a comparably effective and yet less invasive alternative to CABG given the comparable long-term mortality and lower incidences of stroke., (Copyright © 2017 Elsevier Inc. All rights reserved.)
- Published
- 2017
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43. Flecainide-Induced Left Ventricular Dysfunction: Fact or Fiction?
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Khalid U, Rojas F, and Lakkis N
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- Aged, Echocardiography, Doppler, Electrocardiography, Ambulatory, Female, Heart Ventricles diagnostic imaging, Heart Ventricles physiopathology, Humans, Risk Factors, Ventricular Dysfunction, Left diagnosis, Ventricular Dysfunction, Left physiopathology, Anti-Arrhythmia Agents adverse effects, Flecainide adverse effects, Heart Ventricles drug effects, Ventricular Dysfunction, Left chemically induced, Ventricular Function, Left drug effects
- Published
- 2017
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44. Acute ascending aortic dissection after MDMA/ecstasy use: A case report.
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Kanahara S, El-Refai M, Lakkis N, and Tabbaa R
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- Adult, Aortic Dissection chemically induced, Aortic Aneurysm chemically induced, Aortic Aneurysm surgery, Aortic Valve Insufficiency surgery, Early Diagnosis, Echocardiography, Transesophageal, Female, Humans, Syncope chemically induced, Aortic Dissection diagnostic imaging, Aortic Aneurysm diagnostic imaging, Aortic Valve Insufficiency diagnostic imaging, N-Methyl-3,4-methylenedioxyamphetamine toxicity
- Abstract
Acute aortic dissection is rare among young patients in the absence of connective tissue disorders. One of the risk factors associated with aortic dissection among young patients is amphetamine use. We report a case of a 37-year-old female with a past medical history of hypertension presenting with syncope and altered mental status who was found to have an acute DeBakey Type I aortic dissection after ingestion of 3,4-methylenedioxymethamphetamine (MDMA), commonly known as ecstasy. This is the second case in the literature describing aortic dissection in relation to MDMA use. In both cases, the patients were young and had no history of connective tissue disorders or underlying valvular abnormalities. In this case, echocardiography was used to establish the diagnosis early. A transthoracic echocardiogram revealed a possible dissection flap prolapsing in through a normal aortic valve. Subsequently, a transesophageal echocardiogram revealed wide-open aortic regurgitation with several proximal dissection flaps from a normal caliber ascending aorta prolapsing into a normal tricuspid aortic valve. A high index of suspicion is necessary to diagnose and treat aortic dissection in young patients with a history of MDMA use., Learning Objective: Recognize MDMA as a risk factor for acute aortic dissection, especially among younger patients with whom clinicians may not often associate aortic dissection., (Copyright © 2016 Hellenic Cardiological Society. Published by Elsevier B.V. All rights reserved.)
- Published
- 2016
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45. The Role of Intracoronary Plaque Imaging with Intravascular Ultrasound, Optical Coherence Tomography, and Near-Infrared Spectroscopy in Patients with Coronary Artery Disease.
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Hoang V, Grounds J, Pham D, Virani S, Hamzeh I, Qureshi AM, Lakkis N, and Alam M
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- Coronary Artery Disease etiology, Humans, Percutaneous Coronary Intervention, Plaque, Atherosclerotic complications, Spectroscopy, Near-Infrared, Stents, Tomography, Optical Coherence, Ultrasonography, Interventional, Coronary Artery Disease diagnostic imaging, Plaque, Atherosclerotic diagnostic imaging
- Abstract
The development of multiple diagnostic intracoronary imaging modalities has increased our understanding of coronary atherosclerotic disease. These imaging modalities, intravascular ultrasound (IVUS), optical coherence tomography (OCT), and near-infrared spectroscopy (NIRS), have provided a method to study plaques and introduced the concept of plaque vulnerability. They are being increasingly used for percutaneous coronary intervention (PCI) optimization and are invaluable tools in research studying the pathophysiology of acute coronary syndrome (ACS), in-stent thrombosis and in-stent restenosis. IVUS has the ability to visualize the intracoronary lumen and the vessel wall and can be used to detect early atherosclerotic disease even in the setting of positive arterial remodeling. Studies supporting the use of IVUS to optimize stent deployment and apposition have shown a significant reduction in cardiovascular events. OCT provides even higher resolution imaging and near microscopic detail of plaques, restenoses, and thromboses; thus, it can identify the etiology of ACS. Ongoing trials are evaluating the role of OCT in PCI and using OCT to study stent endothelialization and neointimal proliferation. NIRS is a modality capable of localizing and quantifying lipid core burden. It is usually combined with IVUS and is used to characterize plaque composition. The benefits of NIRS in the setting of ACS have been limited to case reports and series. The utilization of all these intracoronary imaging modalities will continue to expand as their indications for clinical use and research grow. Studies to support their use for PCI optimization resulting in improved outcomes with potential to prevent downstream events are ongoing.
- Published
- 2016
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46. Inflammatory Pseudotumor Originating from the Right Ventricular Outflow Tract.
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Singh M, Khalid U, Lakkis N, and Tabbaa R
- Abstract
Introduction . Inflammatory pseudotumor is an uncommon entity, and its cardiac origin is exceedingly rare. Case History . A previously healthy 27-year-old man was found to have a systolic murmur during preemployment screening evaluation. A transthoracic echocardiogram revealed a 4 × 2.5 cm mass originating from the right ventricle (RV) outflow tract extending into the aortic root. A computed tomography guided biopsy confirmed an IgG4-related inflammatory pseudotumor. Patient was started on oral prednisone with subsequent reduction in mass size. Conclusion . Cardiac inflammatory pseudotumors are markedly rare tumors that should be considered in the differential of intracardiac tumors which otherwise includes cardiac fibromas, myxomas, and sarcomas., Competing Interests: The authors declare no conflict of interests.
- Published
- 2016
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47. Postprandial effects on arterial stiffness parameters in healthy young adults.
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Murray T, Yang EY, Brunner G, Kumar A, Lakkis N, Misra A, Virani SS, Hartley CJ, Morrisett JD, Ballantyne CM, and Nambi V
- Subjects
- Adult, Age Factors, Carotid Arteries diagnostic imaging, Carotid Artery Diseases blood, Carotid Artery Diseases diagnostic imaging, Carotid Artery Diseases physiopathology, Female, Healthy Volunteers, Humans, Hyperlipidemias blood, Hyperlipidemias diagnosis, Hyperlipidemias physiopathology, Male, Pilot Projects, Pulse Wave Analysis, Time Factors, Ultrasonography, Young Adult, Carotid Arteries physiopathology, Carotid Artery Diseases etiology, Dietary Fats adverse effects, Hyperlipidemias etiology, Postprandial Period, Vascular Stiffness
- Abstract
Postprandial lipemia has been associated with acute endothelial dysfunction. Endothelial dysfunction, in turn, is associated with increased arterial stiffness. However, the relationship between postprandial lipemia and acute changes in arterial stiffness has not been extensively investigated. Therefore, we conducted a pilot study on the effects of postprandial lipemia on arterial stiffness in 19 healthy young adults before and after consumption of a high-fat mixed meal. Arterial stiffness was assessed locally with echo-tracking carotid arterial strain (CAS) and globally with carotid-femoral pulse wave velocity (PWV). As assessed by these two benchmark parameters, arterial stiffness did not differ significantly postprandially. However, the arterial distension period (ADP) was significantly lower 2 hours after mixed meal ingestion. In addition, slopes of carotid artery area (CAA) curves were significantly steeper postprandially. Therefore, we concluded that ADP may be a more sensitive marker of arterial stiffness in healthy young adults when compared to PWV and CAS., (© The Author(s) 2015.)
- Published
- 2015
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48. ANA-Negative Lupus Presenting with Heart Failure and Severe Valvular Dysfunction: Case Report and Review of the Literature.
- Author
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Hoang V, Addison D, Lakkis N, and Tabbaa R
- Subjects
- Adrenergic beta-Antagonists therapeutic use, Adult, Biomarkers blood, Biopsy, Echocardiography, Doppler, Color, Echocardiography, Transesophageal, Female, Fluorescent Antibody Technique, Heart Failure diagnosis, Heart Failure drug therapy, Heart Valve Diseases diagnosis, Heart Valve Diseases drug therapy, Humans, Immunosuppressive Agents therapeutic use, Lupus Erythematosus, Systemic blood, Lupus Erythematosus, Systemic diagnosis, Lupus Erythematosus, Systemic drug therapy, Lupus Erythematosus, Systemic immunology, Predictive Value of Tests, Serologic Tests, Severity of Illness Index, Steroids therapeutic use, Treatment Outcome, Antibodies, Antinuclear blood, Heart Failure etiology, Heart Valve Diseases etiology, Lupus Erythematosus, Systemic complications
- Abstract
Antinuclear antibody (ANA) negative lupus is an important subset of the systemic lupus erythematosus (SLE) disease spectrum. Since the introduction of human cell line for ANA assay, the occurrence of true ANA-negative SLE has been a rare clinical phenomenon. The nature of cardiac involvement in ANA-negative SLE is not well understood, although any cardiac involvement, including valvular dysfunction, should be considered as a presenting manifestation of SLE irrespective of serology status. Early recognition and intervention appears to be associated with decreased morbidity. The following report describes our first case of ANA-negative SLE with an initial presentation of severe cardiac valvular dysfunction and heart failure. It also characterizes the spectrum of disease severity in ANA-negative SLE and demonstrates how aggressive SLE therapy can improve cardiac disease.
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- 2015
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49. First Comprehensive Analysis of Outcomes in Adult Patients after Percutaneous Closure of Isolated Secundum Atrial Septal Defects.
- Author
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Atashband A and Lakkis N
- Subjects
- Atrial Septum pathology, Echocardiography, Female, Heart Septal Defects, Atrial epidemiology, Heart Septal Defects, Atrial pathology, Humans, Hypertension, Pulmonary complications, Male, Middle Aged, Treatment Outcome, Atrial Septum surgery, Heart Septal Defects, Atrial complications, Heart Septal Defects, Atrial surgery
- Abstract
Background: Secundum atrial septal defect (ASD) is a common congenital heart defect in adults. If untreated, ASD leads to right ventricular (RV) failure, atrial arrhythmias, and pulmonary hypertension. The aim of this study is to analyze published data on outcomes and complications of percutaneous ASD closure in adults., Methods: PubMed searches performed for published literature on percutaneous ASD closure using the terms ASD, ASD closure or repair, and percutaneous or transcatheter closure., Results: A total of 23 studies, 1958 patients, were analyzed. Baseline characteristics showed mean age of 49.1 ± 1.7 years, Qp:Qs of 2.2 ± 0.05, defect size 19.4 ± 1 and device size 24.0 ± 0.7. The percentage of patients in NYHA class I, II and III was 42.4 ± 6.3, 40.0 ± 6.5, and 9.3 ± 3.0, respectively. Mean follow-up was 12.6 ± 4.9 months with a closure rate of 96.9% ± 1.4. Echocardiographic parameters of improvement included decrease in RV volume from 157.2 to 100.2 mL (p = 0.02), RV end-diastolic dimensions from 40.8 to 32.4 mm (p < 0.0001) and pulmonary artery systolic pressures from 42.2±2.2 to 34.4±2.4 (p < 0.0001). The percentage of patients in NYHA class II and III decreased from 55±7.5 to 15.9±4.4 (p = 0.0013). At the end of follow-up, complications included 1% mortality rate, 0.8% device embolization, 5.8% new onset arrhythmias and 1.2% need for surgical closure., Conclusion: Our study confirms that percutaneous ASD closure in adults with moderate pulmonary hypertension and RV dilation is safe and effective with reverse remodeling and better functional capacity. Prospective studies are needed to evaluate efficacy of percutaneous ASD closure in adults with large defects, higher shunt ratios, and severe pulmonary hypertension.
- Published
- 2015
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50. Isolated perforation of left coronary cusp after blunt chest trauma.
- Author
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Maini R, Dadu RT, Addison D, Cunningham L, Hamzeh I, Wall M Jr, Lakkis N, and Tabbaa R
- Abstract
Left coronary cusp perforation is an extremely rare consequence of blunt chest trauma. A 22-year-old male presented after a motor vehicle accident with dyspnea. Transthoracic echocardiogram (TTE) and transesophageal echocardiogram (TEE) showed moderate to severe aortic regurgitation with prolapsing right coronary cusp. In the operating room he was found to have a left coronary cusp tear near the annulus and an enlarged right cusp. The patient recovered well after successful aortic valve replacement with a mechanical valve. Traumatic aortic regurgitation with left cusp perforation is serious and surgical intervention may be lifesaving if performed timely.
- Published
- 2015
- Full Text
- View/download PDF
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