Abstract

Abstrak Penggunaan Propofol untuk induksi pada general anestesi dapat menyebabkan hipotensi akibat vasodilatasi arteri dan vena terutama vena kapasitan ditungkai. Manuver elevasi tungkai dapat mempertahankan stabilitas hemodinamik dengan meningkatkan aliran balik vena ke jantung dan mengurangi penumpukan darah di vena kapasitan tungkai. Penelitian ini dirancang dengan menggunakan cara Open Randomized Control Trial. Subyek penelitian adalah 184 sampel pasien dewasa ASA I-II yang menjalani operasi elektif dengan menggunakan general anestesi dengan induksi propofol. Kelompok sampel penelitian dibagi dalam dua kelompok masing-masing berjumlah 92 orang. Setelah prabeban cairan RL 10 cc/kgbb dan pemberian fentanyl 2 mcg/kgbb dan midazolam 0,05 mg/kgbb maka kelompok A dilakukan elevasi tungkai 45º satu menit sebelum induksi propofol dan dipertahankan sampai penelitian selesai. Sedangkan kelompok B tidak dilakukan elevasi tungkai. Data yang dikumpulkan dianalisa dengan uji t tes. Untuk data proporsi dilakukan analisa dengan tes chi-square. Dari data demografi tidak didapatkan perbedaan yang bermakna secara statistik (p>0,05) antara kedua kelompok penelitian kecuali untuk BMI (p<0,05). Insidensi hipotensi menit pertama pasca induksi propofol pada kelompok A (elevasi tungkai) secara signifikan lebih rendah (12%) dibanding kelompok kontrol B (27,2%) (p=0,016; p < 0,05). Pada menit ketiga pasca induksi juga didapatkan insidensi hipotensi kelompok A (15,2%) signifikan lebih rendah dibanding kelompok B (23,9%) (p= 0,014; p < 0,05). Elevasi tungkai 45 derajat efektif dalam menurunkan insidensi hipotensi pasca induksi propofol. Kata kunci: propofol, hipotensi, elevasi tungkai AbstractThe induction of general anaesthesia with propofol may induce of considerable degree of hypotension that has been atributed to decrease in systemic vascular resistance caused by combination of venous and arterial vasodilatation. It will produce a shifting of blood to venous reservoir, especially capacitance venule of legs. Leg elevation can provide hemodynamic stability by increases cardiac preload and recruits blood contained in the venous reservoir. This is Open Randomized Control Trial include 184 elective surgery patients with American Society of Anaesthesiologist (ASA) physical status I and II. Anesthesia was induced with propofol. Patients were randomly allocated into two groups with 92 patients in each. All the patients received Ringer’s Lactate (10 ml/kg) and premedicated with fentanyl (2 mcg/kg) and midazolam (0,05 mg/kg) before induction of anesthesia. Group A was performed passive leg raising 45 degree 1 minute before injection of propofol until the end of study and group B (control) did not receive any maneuver. Parametric data were analyzed with t-test and categorical data was done by using Chi-square test. A p value of less than 0,05 was consider significant. Demografic characteristics (age, sex, body weight and height) and baseline haemodynamic parameters of the patients were similar in two groups (p > 0.05) except for BMI (p < 0.05) . The incidence of hypotension was significantly lower in group A (12 %, ) than group B (27,2%) at the first minute after propofol injection, p value = 0.016 (p < 0,05). In the third minute, incidence of hypotension was also significantly lower in group A (15,2%) than group B (23,9%), p value = 0,014 (p < 0,05). Leg elevation maneuver 45º significantly decrease incidence of hypotension after propofol induction. Keywords: Propofol, hypotension, leg elevation

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call