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Effects of Oral Protein Load on Kidney Function in Patients Undergoing Cardiac Surgery

18. november 2018 opdateret af: Faeq Husain, University of Giessen

Effects of Preoperative High Oral Protein Load on Short- and Long-term Renal Outcomes Following Cardiac Surgery - a Matched Case-control Study

Acute kidney injury (AKI) occurs in approximately one-third of patients undergoing cardiac surgery (CS), and represents one of the most significant negative predictors of patient outcome in this population. In the healthy adult, a high protein meal is known to enhance glomerular filtration rate and is mediated by an increase in renal blood flow. The investigators hypothesized that preoperative oral protein load may precondition the kidneys for upcoming insults and reduce the rate of postoperative AKI and long-term renal outcome.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Acute kidney injury (AKI) occurs in approximately one-third of patients undergoing cardiac surgery (CS), and represents one of the most significant negative predictors of patient outcome in this population. To date, there is no therapy to prevent AKI. In the healthy adult, a high protein meal is known to enhance glomerular filtration rate (GFR) and is mediated by an increase in renal blood flow. The investigators hypothesized that preoperative oral protein load may induce an adaptive response of the kidneys, and precondition the kidneys for upcoming insults. In the present study, the investigators aimed to compare the prevalence and severity of AKI in patients undergoing oral high protein load of the 'Preoperative Renal Functional Reserve Predict Risk of AKI after Cardiac Operation' study to age- and gender-matched "controls" who had a standard preoperative care the day prior to surgery within the same period (November 2014-October 2015) at San Bortolo Hospital, Vicenza, Italy. Both groups were followed 1 year post-discharge to evaluate long-term renal outcomes.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

214

Deltagelseskriterier

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Berettigelseskriterier

Aldre berettiget til at studere

  • Barn
  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

Adult patients with estimated GFR ≥60 ml/min/1.73 m2 (CKD-Epidemiology Collaboration equation) undergoing elective cardiac surgery (coronary artery bypass, valve replacements, combined or other surgery, with cardiopulmonary bypass) between November 2014 and October 2015 at the San Bortolo Hospital, Vicenza, Italy

Beskrivelse

Inclusion Criteria:

  1. Subjects older than 18 years undergoing elective cardiac surgery
  2. Subjects older than 18 years with an estimated eGFR >60 ml/min/1.73 m2 (CKD-EPI)
  3. Subjects who signed informed consent forms

Exclusion Criteria:

  1. Pregnancy
  2. Chronic kidney disease ≥ stage III (KDIGO criteria)
  3. Preexisting acute kidney injury (as determined by all available serum creatinine values from hospital and outpatient medical records within the previous 90 days)
  4. Solitary kidney
  5. Diabetes mellitus type 1
  6. Recent cardiac arrest or myocardial infarction up to 7 days before surgery
  7. Liver failure or cirrhosis
  8. Total parenteral nutrition
  9. Haemoglobin <11 g/dl
  10. Sepsis
  11. History of malabsorption, chronic inflammatory bowel disease, short bowel, or pancreatic insufficiency
  12. Transplant donor or recipient
  13. Active autoimmune disease with renal involvement
  14. Rhabdomyolysis
  15. Prostate hypertrophy with International Prostate Symptom Score ≥20
  16. Transcatheter aortic valve implantation
  17. Active neoplasm
  18. Patients who did not pause angiotensin-converting enzyme inhibitors or angiotensin II receptor blockers or received non-steroidal anti-inflammatory drugs a minimum of 48 hours before hospital admission.
  19. Patients who received intravenous radiocontrast agents within the 72 hours before hospital admission.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Cardiac Surgery
214 adult patients with estimated GFR ≥60 ml/min/1.73 m2 (CKD-Epidemiology Collaboration equation) undergoing elective cardiac surgery (coronary artery bypass, valve replacements, combined or other surgery, with cardiopulmonary bypass) between November 2014 and October 2015 at the San Bortolo Hospital, Vicenza, Italy
Andet: Ingen indgriben

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Occurrence of AKI after cardiac surgery
Tidsramme: 7 days
using full Kidney Disease: Improving Global Outcomes criteria
7 days
Long-term change in estimated GFR
Tidsramme: 3 months and 1 year after cardiac surgery
using CKD-Epidemiology Collaboration creatinine formula
3 months and 1 year after cardiac surgery

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

University of Giessen

Efterforskere

  • Studieleder: Claudio Ronco, MD, International Renal Research Institute of Vicenza, Vicenza, Italy

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. november 2014

Primær færdiggørelse (Faktiske)

31. oktober 2015

Studieafslutning (Faktiske)

24. november 2016

Datoer for studieregistrering

Først indsendt

30. marts 2017

Først indsendt, der opfyldte QC-kriterier

30. marts 2017

Først opslået (Faktiske)

5. april 2017

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

20. november 2018

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

18. november 2018

Sidst verificeret

1. november 2018

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 79/16 F

Plan for individuelle deltagerdata (IPD)

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JA

IPD-planbeskrivelse

All IPD that underlie results in a publication

IPD-delingstidsramme

Starting immediately after results have been published

IPD-delingsadgangskriterier

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IPD-deling Understøttende informationstype

  • SAP

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