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.
調査の概要
状態
研究の種類
入学 (推定)
段階
- 適用できない
連絡先と場所
研究連絡先
- 名前：İbrahim MD Topcu
- 電話番号：00905437860316
- メール：ibrahimtpc78@gmail.com
研究連絡先のバックアップ
- 名前：Musa Ass. Prof Zengin
- 電話番号：00905307716235
- メール：musazengin@gmail.com
研究場所
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Yenimahalle\Ankara
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Ankara、Yenimahalle\Ankara、トルコ（Türkiye）、06170
- 募集
- Ankara Etlik City Hospital
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コンタクト：
- İbrahim MD Topcu
- 電話番号：05437860316
- メール：ibrahimtpc78@gmail.com
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コンタクト：
- Musa Assoc.Prof Zengin
- 電話番号：00905307716235
- メール：musazengin@gmail.com
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参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
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
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：処理
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：独身
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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アクティブコンパレータ：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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アクティブコンパレータ：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
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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.
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Change in serum creatinine level from baseline to postoperative 72 hours
時間枠：: 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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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Intraoperative urine output
時間枠：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
時間枠：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
時間枠：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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協力者と研究者
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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