Antibiotic Concentration in Internal Mammary Graft Preparation
Target Tissue Concentration of Standard Antibiotic Treatment in Coronary Artery Bypass Grafting Using Left Internal Mammary Artery
The negative effect of internal mammary harvesting on sternal perfusion is well known, especially in diabetic subjects. Microdialysis previously showed increased lactate tissue concentration after mammary artery preparation. Although high antibiotic concentration is of utmost importance in this region, no study previously measured the effect of internal mammary artery harvesting on target tissue antibiotic concentration.
Study hypothesis:
Internal mammary artery harvesting imposes an additional risk for deep sternal wound infection by impairing antibiotic tissue penetration. This effect is mediated by altered perfusion patterns and may be seen in cephalosporin and/or Teicoplanin treatment.
Study objective:
To evaluate the impact of left internal mammary artery preparation on target tissue antibiotic concentration of Cefazolin and Teicoplanin during cardiac surgery
Design:
This study is designed as an observational pharmacokinetic trial. Patients are their own controls by measuring antibiotic concentration in different subcutaneous tissues.
Study population:
Patients referred for coronary artery bypass grafting to the Department of Cardiothoracic Surgery with planned unilateral left internal mammary artery preparation and a high risk profile for deep sternal wound infections will be asked to participate in this trial.
Studieoversigt
Status
Status
Betingelser
Betingelser
Undersøgelsestype
Undersøgelsestype
Tilmelding (Forventet)
Tilmelding
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Martin Andreas, MD, MBA
- Telefonnummer: 00431404005262
- E-mail: martin.andreas@meduniwien.ac.at
Studiesteder
-
-
-
Vienna, Østrig, 1090
- Rekruttering
- Medical University of Vienna
-
Kontakt:
- Martin Andreas, MD, MBA
- Telefonnummer: 00431404005262
- E-mail: martin.andreas@meduniwien.ac.at
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Written informed consent
- Planned coronary artery bypass grafting with unilateral internal mammary artery bypass
- Planned used of cardiopulmonary bypass
Exclusion Criteria:
- Inability to give informed consent
- Know allergy to cephalosporins, penicillin or Teicoplanin
- Re-operation
- Additional planned valve surgery
- Dialysis
- BMI > 30
- Long standing diabetes mellitus (> 7 years)
- Ejection fraction below 20% measured with transthoracic echocardiography
- Chronic severe renal insufficiency
- Childbearing potential
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Observationsmodeller: Kohorte
- Tidsperspektiver: Fremadrettet
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
|---|
|
CABG - subjects
only one group
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
- Difference of tissue concentration of Teicoplanin between left and right pre-sternal subcutaneous tissue and between the subcutaneous tissue at the tight
Tidsramme: 10 hours
|
measurement with microdialysis
|
10 hours
|
|
- Difference of tissue concentration of Cefazolin between left and right pre-sternal subcutaneous tissue and between the subcutaneous tissue at the tight
Tidsramme: 10 hours
|
measurement with microdialysis
|
10 hours
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- Version 1.1 - 19.11.2009
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .