ASA + Estatinas son solo costo-efectivas en alto riesgo cardiovascular


ASA + statins only cost-effective at high risk

Clinical Question:<!–
D([“mb”,”\u003c/h3\u003e\n\u003cp\u003e\n In men without a history of cardiovascular disease, is low-dose aspirin, a statin, or both drugs \ncost-effective in preventing cardiovascular events?\n\u003c/p\u003e\n\n\u003ch3\u003eBottom Line:\u003c/h3\u003e\n\u003cp\u003e\n From the viewpoint of cost to a third-party payer, the costs of aspirin alone are reasonable in \nmen at low-risk for coronary heart disease (CHD); the addition of a statin to aspirin therapy in \nthese men is above what is considered to be reasonable cost for prevention. However, the \ncombination of aspirin and a statin is cost-effective when men are at high risk (10% or above). \u003ca href\u003d\”http://www.infopoems.com/levels.html\” target\u003d\”_blank\” onclick\u003d\”return top.js.OpenExtLink(window,event,this)\”\u003e(LOE \u003d 2a)\u003c/a\u003e\n\u003c/p\u003e\n\n\u003ch3\u003eReference:\u003c/h3\u003e\n\u003cp\u003e\n \u003ca href\u003d\”http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd\u003dRetrieve\u0026amp;db\u003dPubMed\u0026amp;list_uids\u003d16520473\u0026amp;dopt\u003dAbstract\” target\u003d\”_blank\” onclick\u003d\”return top.js.OpenExtLink(window,event,this)\”\u003ePignone \nM, Earnshaw S, Tice JA, Pletcher MJ. Aspirin, statins, or both drugs for the primary prevention of \ncoronary heart disease events in men: A cost-utility analysis. Ann Intern Med 2006;144:326-36.\u003c/a\u003e\n\u003c/p\u003e\n\n\u003cdiv\u003e\n\u003ch3\u003eStudy Design:\u003c/h3\u003e\n\u003cp\u003e\n Cost-effectiveness analysis\n\u003c/p\u003e\n\u003c/div\u003e\n\n\n\u003cdiv\u003e\n\u003ch3\u003eFunding:\u003c/h3\u003e\n\u003cp\u003e\n Industry + govt\n\u003c/p\u003e\n\u003c/div\u003e\n\n\n\u003cdiv\u003e\n\u003ch3\u003eSetting:\u003c/h3\u003e\n\u003cp\u003e\n Outpatient (any)\n\u003c/p\u003e\n\u003c/div\u003e\n\n\n\u003cp\u003e \u003c/p\u003e\n\u003ch3\u003eSynopsis:\u003c/h3\u003e\n\u003cp\u003e\n Although both aspirin and statin drugs, separately, are effective for preventing a first CHD \nevent, there is no direct evidence that the combination is more effective than either alone. The \nresearchers conducting this analysis determined the cost-effectiveness of the combination from the \nperspective of a third-party payer and we can use this analysis to understand the relative benefits \nof the 2 treatments. The researchers started with a base-case scenario of a 45-year-old man with a \n10-year risk of CHD of 7.5% treated with aspirin, statin therapy, both, or neither for 10 years. \nThe outcome was the development of a CHD event — stroke, myocardial infarction, or death — over \nthe 10 years. The Markov model used in this analysis also assumed that all patients would be \ntreated with both drugs after 10 years and then estimated their life-time cost-utility ratio. They \nalso considered the major risks of treatment, gastrointestinal bleeding, and myopathy-related \ndeath, derived from results of clinical trials. “,1]
);

//–>

In men without a history of cardiovascular disease, is low-dose aspirin, a statin, or both drugs cost-effective in preventing cardiovascular events?

Bottom Line:

From the viewpoint of cost to a third-party payer, the costs of aspirin alone are reasonable in men at low-risk for coronary heart disease (CHD); the addition of a statin to aspirin therapy in these men is above what is considered to be reasonable cost for prevention. However, the combination of aspirin and a statin is cost-effective when men are at high risk (10% or above). (LOE = 2a)

Reference:

Pignone M, Earnshaw S, Tice JA, Pletcher MJ. Aspirin, statins, or both drugs for the primary prevention of coronary heart disease events in men: A cost-utility analysis. Ann Intern Med 2006;144:326-36.

Study Design:

Cost-effectiveness analysis

Funding:

Industry + govt

Setting:

Outpatient (any)

Synopsis:

Although both aspirin and statin drugs, separately, are effective for preventing a first CHD event, there is no direct evidence that the combination is more effective than either alone. The researchers conducting this analysis determined the cost-effectiveness of the combination from the perspective of a third-party payer and we can use this analysis to understand the relative benefits of the 2 treatments. The researchers started with a base-case scenario of a 45-year-old man with a 10-year risk of CHD of 7.5% treated with aspirin, statin therapy, both, or neither for 10 years. The outcome was the development of a CHD event — stroke, myocardial infarction, or death — over the 10 years. The Markov model used in this analysis also assumed that all patients would be treated with both drugs after 10 years and then estimated their life-time cost-utility ratio. They also considered the major risks of treatment, gastrointestinal bleeding, and myopathy-related death, derived from results of clinical trials. <!–
D([“mb”,”\u003cbr\u003e\n\u003cbr\u003e\nFor men at low risk, lifetime aspirin therapy increases their lifespan an average of 3 days \n(adjusted for quality of those days, or \u0026quot;quality-adjusted days\u0026quot;). Men at moderate (7.5%) risk \ngained an average 17 quality-adjusted days, and men at moderate to high risk (10%) gained 24 \nquality-adjusted days. When statin was theoretically added to aspirin treatment, the average \nincrease in lifespan was 13 days for low-risk men (an additional 10 days over aspirin alone), 35 \ndays for moderate risk (an additional 18 days), and 45 days (an additional 21 days) for men at \nmoderate to high risk. In men with low risk, the cost per quality-adjusted life-year is a very \nreasonable $9800 US for aspirin alone but $164,700 US for the combination. At moderate risk, \ncombination therapy is a reasonable $56,200 (though the range, depending on the sensitivity \nanalysis, was $26,100 to $246,276). At moderate to high risk the cost per quality-adjusted \nlife-year was $42,500 (range \u003d $20,600 – $188,000).\n\u003c/p\u003e\n\n\u003cp\u003e\n Copyright © 2006 by \u003ca href\u003d\”http://www.wiley.com/go/copyright\” target\u003d\”_blank\” onclick\u003d\”return top.js.OpenExtLink(window,event,this)\”\u003eWiley Subscription \nServices\u003c/a\u003e, Inc. All rights reserved.\n\u003c/p\u003e\n\n\n \u003c/div\u003e\n \u003c/div\u003e\n \u003cdiv\u003e\n \u003cdiv\u003e\n \u003cp\u003e\n \u003ca href\u003d\”http://www.infopoems.com\” target\u003d\”_blank\” onclick\u003d\”return top.js.OpenExtLink(window,event,this)\”\u003ewww.InfoPOEMs.com\u003c/a\u003e\n \u003c/p\u003e\n \u003c/div\u003e\n \u003cdiv\u003e\n \u003c/div\u003e\n \u003c/div\u003e\n \u003cdiv\u003e\n \u003cp\u003e\n This is an automated email. Replies will be ignored.\u003cbr\u003e\n \u003ca href\u003d\”http://www.infopoems.com/support/dpOptions.cfm\” target\u003d\”_blank\” onclick\u003d\”return top.js.OpenExtLink(window,event,this)\”\u003eUnsubscribe or Manage your Daily InfoPOEMs delivery options\u003c/a\u003e from the InfoPOEMs Website.\n \u003cbr\u003e\n Copyright © 2006 by \u003ca href\u003d\”http://www.wiley.com/go/copyright\” target\u003d\”_blank\” onclick\u003d\”return top.js.OpenExtLink(window,event,this)\”\u003eWiley Subscription Services\u003c/a\u003e, Inc. All rights reserved. \u003ca href\u003d\”http://www.infopoems.com\” target\u003d\”_blank\” onclick\u003d\”return top.js.OpenExtLink(window,event,this)\”\u003e”,1]
);

//–>

For men at low risk, lifetime aspirin therapy increases their lifespan an average of 3 days (adjusted for quality of those days, or “quality-adjusted days”). Men at moderate (7.5%) risk gained an average 17 quality-adjusted days, and men at moderate to high risk (10%) gained 24 quality-adjusted days. When statin was theoretically added to aspirin treatment, the average increase in lifespan was 13 days for low-risk men (an additional 10 days over aspirin alone), 35 days for moderate risk (an additional 18 days), and 45 days (an additional 21 days) for men at moderate to high risk. In men with low risk, the cost per quality-adjusted life-year is a very reasonable $9800 US for aspirin alone but $164,700 US for the combination. At moderate risk, combination therapy is a reasonable $56,200 (though the range, depending on the sensitivity analysis, was $26,100 to $246,276). At moderate to high risk the cost per quality-adjusted life-year was $42,500 (range = $20,600 – $188,000).

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AP al dia: pasando revista


British Medical Journal. Vol. 335. Núm. 7626

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Legg L, Drummond A, Leonardi-Bee J, Gladman JRF, Corr S, Donkervoort M et alOccupational therapy for patients with problems in personal activities of daily living after stroke: systematic review of randomised trials. Págs. 922 R TC PDF

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McPherson KM, Ellis-Hill COccupational therapy after stroke. Págs. 894-895 TC (s) PDF (s)

McAlister FADevice therapy in heart failure. Págs. 895-896 TC (s) PDF (s)

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New England Journal of Medicine. Vol. 357. Núm. 18

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Vernooij MW, Ikram MA, Tanghe HL, Vincent AJPE, Hofman A, Krestin GP et al Incidental Findings on Brain MRI in the General Population. Págs. 1821-1828 R TC (s) PDF (s)

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Peters-Golden M, Henderson Jr. WR Mechanisms of Disease: Leukotrienes. Págs. 1841-1854 TC (s) PDF (s)

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The Lancet. Vol. 370. Núm. 9597

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Altman D, Granath F, Cnattingius S, Falconer CHysterectomy and risk of stress-urinary-incontinence surgery: nationwide cohort study. Págs. 1494-1499 R TC (s) PDF (s)

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Magos ADoes hysterectomy cause urinary incontinence?. Págs. 1462-1463 TC (s) PDF (s)

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McCann D, Barrett A, Cooper A, Crumpler D, Dalen L, Grimshaw K et alFood additives and hyperactive behaviour in 3-year-old and 8/9-year-old children in the community: a randomised, double-blinded, placebo-controlled trial. Págs. 1560-1567 R TC (s) PDF (s)

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Time to supersize control efforts for obesity. Págs. 1521 TC PDF

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Eigenmann PA, Haenggeli CAFood colourings, preservatives, and hyperactivity. Págs. 1524-1525 TC (s) PDF (s)

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Moon RY, Horne RSC, Hauck FRSudden infant death syndrome. Págs. 1578-1587 R TC (s) PDF (s)

Medicina Clínica. Vol. 129. Núm. 12

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Zamora E, Lupón J, López-Ayerbe J, Urrutia A, González B, Ferrere E et alDiámetro de la aurícula izquierda: un parámetro ecocardiográfico sencillo con importante significado pronóstico en la insuficiencia cardíaca. Págs. 441-445 R TC (s) PDF (s)

Suárez C, Cairols M, Castillo J, Esmatjes E, Sala J, Llobet X, Palma JCControl de factores de riesgo y tratamiento de la aterotrombosis. Registro REACH España. Págs. 446-450 R TC (s) PDF (s)

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Manzano L, Cornide-Santos LTamaño de la aurícula izquierda como marcador de disfunción ventricular. Págs. 454-455 TC (s) PDF (s)

Solans R, Pérez-López JUtilidad del Doppler color en el diagnóstico de la arteritis de la temporal. Págs. 456-457 TC (s) PDF (s)

Medicina Clínica. Vol. 129. Núm. 13

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Rojano X, Almeda J, Sánchez E, Fortuny C, Bertrán JM, Mur A et alEvolución de la transmisión vertical del VIH en Cataluña durante el período 1987-2003. Págs. 487-493 R TC (s) PDF (s)

Gabilondo A, Alonso J, Pinto-Meza A, Vilagu G, Fernández A, Serrano-Blanco A et alPrevalencia y factores de riesgo de las ideas, planes e intentos de suicidio en la población general española. Resultados del estudio ESEMeD. Págs. 494-500 R TC (s) PDF (s)

Mateo L, Ruiz J, Olivé A, Manterola JM, Pérez R, Tena X, Prats MTuberculosis osteoarticular: estudio de 53 casos. Págs. 506-509 R TC (s) PDF (s)

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Fontseré N, Bonal J, Romero RMétodos para la estimación de la función renal. Págs. 513-518 R TC (s) PDF (s)

Medicina Clínica. Vol. 129. Núm. 14

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Coll B, Masana LRiesgo cardiovascular en pacientes infectados por el virus de la inmunodeficiencia humana: ¿son suficientes las tablas de riesgo?. Págs. 532-533 TC (s) PDF (s)

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Bermejo PE, Velasco RNuevos fármacos antiepilépticos y dolor neuropático. De la medicina molecular a la clínica. Págs. 542-550 R TC (s) PDF (s)

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Suárez C, Álvarez-Sala L, Mostaza J, Asenjo CCálculo del riesgo cardiovascular. Págs. 534-541 TC (s) PDF (s)

Revista Española de Cardiología. Vol. 60. Núm. 10

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Santiago A, García-Lledó A, Ramos E, Santiago CValor pronóstico del electrocardiograma en pacientes con diabetes tipo 2 sin enfermedad cardiovascular conocida. Págs. 1035-1041 R TC PDF

Gil-Guillén V, Orozco-Beltrán D, Maiques-Galán A, Aznar-Vicente J, Navarro J, Cea-Calvo L et alConcordancia de las escalas REGICOR y SCORE para la identificación del riesgo cardiovascular alto en la población española. Págs. 1042-1050 R TC PDF

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Dávila-Román VGValoración del riesgo cardiaco de la cirugía no cardiaca. Págs. 1005-1009 TC PDF

Tejedor-Jorge ANuevos aspectos de la nefropatía por contraste en cardiología. Págs. 1010-1014 TC PDF

Rodríguez-Padial LValor pronóstico del electrocardiograma en la diabetes mellitus: el peligro de «saber demasiado». Págs. 1015-1017 TC PDF

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Cruz-González I, Sánchez-Ledesma M, Sánchez PL, Jang IKTrombocitopenia inducida por heparina. Págs. 1071-1082 R TC PDF

Guías de práctica clínica

Ardissino D, Boersma E, Budaj A, Fernández-Avilés F, Fox KAA, Hasdai D et alGuía de Práctica Clínica para el diagnóstico y tratamiento del síndrome coronario agudo sin elevación del segmento ST. Págs. 1070 PDF

Semergen. Vol. 33. Núm. 8

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Manzanera-Escarti R, Ibáñez-Tarín C, Scoufalos S, Arbesú-Prieto JTerapéutica en Atención Primaria. Terapia cognitivo conductual y medicina de familia en el tratamiento integral de la depresión. Aproximación práctica. Págs. 425-429 R TC PDF

Butlletí d Informació Terapèutica. Vol. 19. Núm. 6

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Saltó E, Valverde ATractament famacològic del tabaquisme. Págs. 29-34 PDF

Diabetes care. Vol. 30. Núm. 11

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Erdmann E, Charbonnel B, Wilcox RG, Skene AM, Massi-Benedetti M, Yates J, et al On behalf of the PROactive investigatorsPioglitazone Use and Heart Failure in Patients With Type 2 Diabetes and Preexisting Cardiovascular Disease: Data from the PROactive Study (PROactive 08). Págs. 2773-2778 R TC (s) PDF (s)

White AM, Johnston CSComparison of Accuracy Measures of Two Screening Tests for Gestational Diabetes Mellitus. Págs. 2814-2815 TC (s) PDF (s)

Tortosa A, Bes-Rastrollo M, Sanchez-Villegas A, Basterra-Gortari FJ, Nuñez-Cordoba JM, Martinez-Gonzalez MAMediterranean Diet Inversely Associated With the Incidence of Metabolic Syndrome: The SUN prospective cohort. Págs. 2957-2959 TC (s) PDF (s)

Perspectiva

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American Family Physician. Vol. 76. Núm. 9

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Oyama O, Paltoo C, Greengold JSomatoform Disorders. Págs. 1333-1338 TC PDF

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Páginas para los pacientes

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Thorax. Vol. 62. Núm. 11

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West R, Zhou XIs nicotine replacement therapy for smoking cessation effective in the “real world”? Findings from a prospective multinational cohort study. Págs. 998-1002 R TC (s) PDF (s)

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Shiffman SNicotine replacement therapy for smoking cessation in the “real world”. Págs. 930-931 TC (s) PDF (s)

Arthritis & Rheumatism. Vol. 56. Núm. 11

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Jüni P, Reichenbach S, Trelle S, Tschannen B, Wandel S, Jordi B et al for the Swiss Viscosupplementation Trial GroupEfficacy and safety of intraarticular hylan or hyaluronic acids for osteoarthritis of the knee: A randomized controlled trial. Págs. 3610-3619 R TC (s) PDF (s)

Atroshi S, Gummesson C, Ornstein E, Johnsson R, Ranstam JCarpal tunnel syndrome and keyboard use at work: A population-based study. Págs. 3620-3625 R TC (s) PDF (s)

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Parikh NI, Gona P, Larson MG, Wang TJ, Newton-Cheh C, Levy D et alPlasma renin and risk of cardiovascular disease and mortality: the Framingham Heart Study. Págs. 2644-2652 R TC (s) PDF (s)

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Neuberger HR, Mewis C, van Veldhuisen DJ, Schotten U, van Gelder IC, Allessie MA, Böhm MManagement of atrial fibrillation in patients with heart failure. Págs. 2568-2577 R TC PDF

Journal of the American Board of Family Medicine. Vol. 20. Núm. 6

Revisiones

Madariaga MG, Jalali Z, Swindells SClinical Utility of Interferon Gamma Assay in the Diagnosis of Tuberculosis. Págs. 540-547 R TC PDF

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Journal Watch: Diabetes


In a New Meta-Analysis, Thiazolidinediones Increase CHF but Not Cardiac Death

General Medicine | Summary and Comment | Subscription Required

The results aren’t inconsistent with previous meta-analyses.

By Bruce Soloway, MD

October 11, 2007

Covering: Lago RM et al. Lancet 2007 Sep 29; 370:1129

Cleland JGF and Atkin SL. Lancet 2007 Sep 29; 370:1103

Montori VM et al. Lancet 2007 Sep 29; 370:1104

Lancet 2007 Sep 29; 370:1101

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Cardiology | Summary and Comment | Free

A new meta-analysis shows an elevated risk for congestive HF but no increase in cardiovascular death rate with either rosiglitazone or pioglitazone

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September 28, 2007

Covering: Lago RM et al. Lancet 2007 Sep 29; 370:1129

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Lancet 2007 Sep 29; 370:1101

Fitness, Obesity, and Insulin Resistance

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Exercise decreased insulin resistance despite no changes in fat or lean body mass.

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September 26, 2007

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Free Full-Text Article

Summary and Comment

In a New Meta-Analysis, Thiazolidinediones Increase CHF but Not Cardiac Death

The results aren’t inconsistent with previous meta-analyses.

The thiazolidinediones (TZDs) rosiglitazone and pioglitazone are known to increase fluid retention and congestive heart failure. Concern about the cardiovascular safety of these drugs has risen since May 2007, when results of a meta-analysis indicated that patients randomized to rosiglitazone had significantly increased risk for myocardial infarction (Journal Watch May 24 2007).

In a new meta-analysis, researchers reviewed seven randomized trials involving 20,191 patients with type 2 diabetes or prediabetes who were randomized to a TZD or a comparator drug or placebo for 12 to 48 months and were studied for outcomes including CHF and cardiovascular death. Patients who received a TZD had significantly increased risk for CHF compared with controls (2.3% vs. 1.4%), but their risk for cardiovascular death was not significantly increased.

Comment: The authors suggest that increased CHF events with the thiazolidinediones likely resulted from fluid retention superimposed on diastolic dysfunction and that such CHF events may have different prognostic implications than those caused by primary deterioration of myocardial function. The absence of increased cardiovascular mortality in this analysis is consistent with the results of both the aforementioned meta-analysis (in which increased mortality failed to reach statistical significance) and subsequent meta-analyses showing no increased mortality with either rosiglitazone or pioglitazone (Journal Watch Sep 11 2007). Noting the complexity of cardiovascular pathophysiology and the limitations of meta-analyses, editorialists decry the paucity of trials powered to measure “patient-centered” outcomes such as cardiovascular events, the overreliance on surrogate endpoints such as HbA1c, and the premature approval of drugs with multiple poorly understood long-term effects. Clinically, says one editorialist, “the jury is still out for the thiazolidinediones.”

Bruce Soloway, MD

Published in Journal Watch General Medicine October 11, 2007

Citation(s):

Lago RM et al. Congestive heart failure and cardiovascular death in patients with prediabetes and type 2 diabetes given thiazolidinediones: A meta-analysis of randomised clinical trials. Lancet 2007 Sep 29; 370:1129.

Medline abstract (Free)

Cleland JGF and Atkin SL. Thiazolidinediones, deadly sins, surrogates, and elephants. Lancet 2007 Sep 29; 370:1103.

Medline abstract (Free)

Montori VM et al. Patient-important outcomes in diabetes — time for consensus. Lancet 2007 Sep 29; 370:1104.

Medline abstract (Free)

Ensuring drug safety: Lessons from the thiazolidinediones. Lancet 2007 Sep 29; 370:1101.

Medline abstract (Free)

Long-Term Follow-up of the West of Scotland Coronary Prevention Study


Long-Term Follow-up of the West of Scotland Coronary Prevention Study

Ian Ford, Ph.D., Heather Murray, M.Sc., Chris J. Packard, D.Sc., James Shepherd, M.D., Peter W. Macfarlane, D.Sc., Stuart M. Cobbe, M.D., for the West of Scotland Coronary Prevention Study Group

ABSTRACT

Background The West of Scotland Coronary Prevention Study was a randomized clinical trial comparing pravastatin with placebo in men with hypercholesterolemia who did not have a history of myocardial infarction, with an average follow-up of approximately 5 years. The combined outcome of death from definite coronary heart disease or definite nonfatal myocardial infarction was reduced from 7.9 to 5.5% (P<0.001) in the treatment group. Extended follow-up data were obtained for approximately 10 years after completion of the trial.

Methods For the survivors of the trial, all deaths, hospitalizations and deaths due to coronary events and stroke, and incident cancers and deaths from cancer were tracked with the use of a national computerized record-linkage system. The results were analyzed with time-to-event analyses and use of Cox proportional-hazards models.

Results Five years after the trial ended, 38.7% of the original statin group and 35.2% of the original placebo group were being treated with a statin. In the period approximately 10 years after completion of the trial, the risk of death from coronary heart disease or nonfatal myocardial infarction was 10.3% in the placebo group and 8.6% in the pravastatin group (P=0.02); over the entire follow-up period, the rate was 15.5% in the placebo group and 11.8% in the pravastatin group (P<0.001). Similar percentage reductions were seen in the combined rate of death from coronary heart disease and hospitalization for coronary events for both periods. The rate of death from cardiovascular causes was reduced (P=0.01), as was the rate of death from any cause (P=0.03), over the entire follow-up period. There were no excess deaths from noncardiovascular causes or excess fatal or incident cancers.

Conclusions In this analysis, 5 years of treatment with pravastatin was associated with a significant reduction in coronary events for a subsequent 10 years in men with hypercholesterolemia who did not have a history of myocardial infarction.


Source Information

From the Robertson Centre for Biostatistics (I.F., H.M.) and the Division of Cardiovascular and Medical Sciences (C.J.P., J.S., P.W.M., S.M.C.), University of Glasgow, Glasgow, United Kingdom.

Address reprint requests to Dr. Ford at the Robertson Centre for Biostatistics, Boyd Orr Bldg., University of Glasgow, Glasgow G12 8QQ, United Kingdom.

Full Text of this Article


This article has been cited by other articles:

  • Domanski, M. J. (2007). Primary Prevention of Coronary Artery Disease. NEJM 357: 1543-1545 [Full Text]
  • (2007). The West of Scotland Coronary Prevention Study: Long-Term Results. Journal Watch Cardiology 2007: 1-1 [Full Text]