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MAP- Versus Cardiac Index-Guided Hemodynamic Management in Colorectal Surgery
Comparison of the Effects of Mean Arterial Pressure-Based and Cardiac Index-Based Intraoperative Hemodynamic Management on Postoperative Renal Function in Patients Undergoing Colorectal Surgery: A Prospective Randomized Study
This prospective randomized trial aims to compare the effects of two intraoperative hemodynamic management strategies on early postoperative renal function in patients undergoing colorectal surgery. Patients will be randomly assigned to receive either mean arterial pressure-guided or cardiac index-guided intraoperative hemodynamic management.
Colorectal surgery is a major abdominal procedure associated with prolonged operative times, significant fluid shifts, blood loss, and hemodynamic instability. These factors can contribute to impaired renal perfusion and subsequent postoperative renal dysfunction. Although mean arterial pressure is widely used to guide intraoperative hemodynamic management, blood pressure alone may not adequately reflect systemic blood flow or regional tissue perfusion. Cardiac index-guided management may provide a more direct assessment of global circulatory adequacy.
The primary outcome of the study is the change in serum creatinine levels from the preoperative baseline to 72 hours postoperatively. Secondary outcomes include intraoperative hemodynamic variables, fluid and vasopressor requirements, urine output, postoperative renal function parameters, intensive care unit (ICU) and hospital length of stay, and 30-day mortality.
Studie Overzicht
Toestand
Studietype
Inschrijving (Geschat)
Fase
- Niet toepasbaar
Contacten en locaties
Studiecontact
- Naam: İbrahim MD Topcu
- Telefoonnummer: 00905437860316
- E-mail: ibrahimtpc78@gmail.com
Studie Contact Back-up
- Naam: Musa Ass. Prof Zengin
- Telefoonnummer: 00905307716235
- E-mail: musazengin@gmail.com
Studie Locaties
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Yenimahalle\Ankara
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Ankara, Yenimahalle\Ankara, Turkije (Türkiye), 06170
- Werving
- Ankara Etlik City Hospital
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Contact:
- İbrahim MD Topcu
- Telefoonnummer: 05437860316
- E-mail: ibrahimtpc78@gmail.com
-
Contact:
- Musa Assoc.Prof Zengin
- Telefoonnummer: 00905307716235
- E-mail: musazengin@gmail.com
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Beschrijving
Inclusion Criteria:
- Patients aged 18 to 80 years
- Patients with American Society of Anesthesiologists physical status II-III
- Patients with estimated glomerular filtration rate ≥60 mL/min/1.73 m²
- Patients scheduled for colorectal surgery
- Patients who provide written informed consent
Exclusion Criteria:
- Patients younger than 18 years or older than 80 years
- Patients with estimated glomerular filtration rate <60 mL/min/1.73 m²
- Patients with American Society of Anesthesiologists physical status other than II-III
- Patients who refuse to participate in the study
- Patients who withdraw consent at any stage of the study
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Enkel
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Actieve vergelijker: Cardiac Index-Guided Hemodynamic Management
Patients in this group will receive intraoperative hemodynamic management based on predefined cardiac index targets.
Hemodynamic interventions, including fluid administration, vasopressor or inotrope therapy, and other standard intraoperative management strategies, will be guided primarily by cardiac index values.
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Intraoperative hemodynamic management will be performed according to predefined cardiac index targets during colorectal surgery.
Cardiac index values will be monitored intraoperatively, and fluid therapy, vasopressor use, and inotrope administration will be adjusted according to the hemodynamic status of the patient and institutional clinical practice.
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Actieve vergelijker: Mean Arterial Pressure-Guided Hemodynamic Management
Patients in this group will receive intraoperative hemodynamic management based on predefined mean arterial pressure targets.
Hemodynamic interventions, including fluid administration, vasopressor therapy, and other standard intraoperative management strategies, will be guided primarily by mean arterial pressure values
|
Intraoperative hemodynamic management will be performed according to predefined mean arterial pressure targets during colorectal surgery.
Standard anesthetic care, fluid therapy, vasopressor use, and intraoperative monitoring will be applied according to institutional clinical practice.
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Change in serum creatinine level from baseline to postoperative 72 hours
Tijdsspanne: : Preoperative baseline and postoperative 72nd hour
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The primary outcome is the change in serum creatinine level, calculated as the difference between the serum creatinine value measured at postoperative 72 hours and the preoperative baseline serum creatinine value.
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: Preoperative baseline and postoperative 72nd hour
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Intraoperative urine output
Tijdsspanne: From anesthesia induction to the end of surgery
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Hourly urine output will be recorded intraoperatively and expressed as mL/kg/hour.
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From anesthesia induction to the end of surgery
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Total intraoperative fluid administration
Tijdsspanne: From anesthesia induction to the end of surgery
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The total amount of crystalloid and colloid fluids administered intraoperatively will be recorded.
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From anesthesia induction to the end of surgery
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Postoperative serum creatinine levels
Tijdsspanne: Postoperative 0-6 hours, 24 hours, 48 hours, and 72 hours
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Serum creatinine values will be recorded at predefined postoperative time points to evaluate renal function trends during the early postoperative period.
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Postoperative 0-6 hours, 24 hours, 48 hours, and 72 hours
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Medewerkers en onderzoekers
Sponsor
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- AEŞH-EK-2026-132
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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