- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT01604486
Natural Ischaemic Preconditioning Before First Myocardial Infarction
Natural Ischaemic Preconditioning Before First Myocardial Infarction: an Analysis of Prospectively Collected UK Electronic Primary Care Records Linked to the National Registry of Acute Coronary Syndromes
There is a sharp rise in the rate of coronary heart disease diagnoses and chest pain consultations in the 90 days before a first heart attack. There is some evidence that chest pain and angina symptoms in this period have a beneficial effect on heart attack outcomes in hospital and shortly after discharge. However, the available evidence is lacking in three key areas. First it is based on a retrospective patient report of symptoms after the heart attack has occurred; this means that patients are required to survive their heart attack and may make errors when reporting prior symptoms. Second, evidence for an effect on longer term outcomes, and coronary outcomes in particular (e.g. coronary death, further heart attacks) are unknown. Third, there is conflicting evidence that these effects might differ by age, in men and women, and according to treatment in hospital.
The investigators hope to address the limitations in the evidence by performing a large, prospective study of the occurrence, timing and effect of different types of symptoms and disease diagnoses occurring before heart attack.
The investigators hypothesise that prospectively collected, clinical measures of chest pain symptoms and cardiovascular diagnoses in primary care will have a beneficial effect on short term coronary mortality and may have a beneficial effect on longer term coronary outcomes.
Studieoversikt
Status
Studietype
Registrering (Faktiske)
Kontakter og plasseringer
Studiesteder
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-
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London, Storbritannia, WC1E 7HT
- London School of Hygiene and Tropical Medicine
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
Inclusion Criteria:
- Patients in GPRD practices which are deemed "up to standard" by GPRD criteria will be included if their practice agreed to be linked to the MINAP, HES and ONS datasets.
- Patients must have at least one year of GPRD "up to standard" registration before the date of first MI.
- Age over 18.
- First myocardial infarction occurring between 1st January 2003 and 31st December 2008, as recorded in the Hospital Episode Statistics data or the Myocardial Ischaemia National Audit Project.
Exclusion Criteria:
- Patients will be excluded if they do not fulfil one of the inclusion criteria.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
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MI without ischaemic preconditioning
Myocardial infarction unheralded by any previous cardiovascular disease diagnosis and without symptoms of chest pain in the previous 90 days.
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MI with longstanding disease
Patients with myocardial infarction who have had diagnosed atherosclerotic disease for longer than 90 days preceding infarct.
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MI with only chest pain
Patients with chest pain in the 90 days preceding MI, but with no prior atherosclerotic disease diagnoses.
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MI with disease and chest pain
Myocardial infarction occurring with previously diagnosed atherosclerotic disease of longer than 90 days' duration, but with chest pain in 90 days preceding infarct.
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
---|---|---|
Recurrent myocardial infarction
Tidsramme: Up to seven years
|
Myocardial infarction occurring thirty or more days after the study start date.
|
Up to seven years
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Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
---|---|---|
Coronary mortality
Tidsramme: Up to seven years
|
Coronary mortality, using ONS mortality statistics (ICD-10 codes I20-I25)
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Up to seven years
|
Samarbeidspartnere og etterforskere
Samarbeidspartnere
Publikasjoner og nyttige lenker
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
- Iskemi
- Patologiske prosesser
- Nekrose
- Myokardiskemi
- Kardiovaskulære sykdommer
- Vaskulære sykdommer
- Hjernesykdommer
- Sykdommer i sentralnervesystemet
- Sykdommer i nervesystemet
- Arteriosklerose
- Arterielle okklusive sykdommer
- Smerte
- Nevrologiske manifestasjoner
- Aterosklerose
- Brystsmerter
- Hjerteinfarkt
- Infarkt
- Hjertesykdommer
- Koronar sykdom
- Perifer arteriell sykdom
- Perifere vaskulære sykdommer
- Angina pectoris
- Cerebrovaskulære lidelser
Andre studie-ID-numre
- EH CALIBER IP
- 086091/Z/08/Z (Annet stipend/finansieringsnummer: Wellcome Trust)
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