Plethysmography variation index versus Pulse pressure variation as an indicator of fluid responsiveness in colorectal surgeries during immediate postoperative period.

Faculty of medicine Ain shams university0 个研究点目标入组 103 人开始时间: 2023年8月28日最近更新: 2024年3月4日

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•1-Age =18 years and <65 years.
•2-Patients admitted to the ICU after performing colorectal surgeries.
•3- APACHE II SCORE will be done to all patients admitted to ICU after colorectal surgery.
•4-Patients on controlled mechanical ventilation with tidal volume at least 8ml/kg and sedated.
•5-Patients requiring intravenous fluid challenge for resuscitation based on the clinical characteristics as systolic arterial blood pressure (SBP) <90 mmHg or mean arterial pressure (MAP) <65 mmHg with signs of hypoperfusion (oliguria less than 0.5 ml/kg/h, arterial lactate >2.5 mMol/L).
•6-Patients with an arterial catheter and central venous catheter via the internal jugular vein or the subclavian vein.
•7-Patients with normal sinus rhythm.

•1-Un satisfactory cardiacechogenicity.
•2-Preexisting severe valvular heart disease.
•3-Known tricuspid insufficiency, intracardiac shunt or cardiac arrhythmia.
•4-Low left ventricular function (ejection fraction < 40%).
•5-Any contraindication to fluid resuscitation, such as congestive heart failure, evidence of fluid overload or renal dysfunction.
•6-Lung pathologies (like asthma, COPD).
•7-Patients with contraindications for sedation by narcotics and midazolam like hepatic or renal dysfunction.
•8-Patients suffering from type I /II diabetes.
•9-Patients whose temporary removal of the compression stocking owing to venous insufficiency (i.e., deep venous thrombosis) could endanger patient safety.

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