Can low-dose remifentanil and low-dose propofol be used for sedation and analgesia during coronary angiography?

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Last updated: February 15, 2026View editorial policy

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Oo, pwede ang low-dose remifentanil at propofol para sa coronary angiography

Ang kombinasyon ng low-dose remifentanil at propofol ay epektibo at ligtas para sa sedation sa coronary angiography, ngunit kailangan ng maingat na titration at tuluy-tuloy na monitoring dahil sa mas mataas na panganib ng respiratory depression. 1, 2

Rekomendasyon sa Dosing

Magsimula sa remifentanil 0.125 µg/kg/min sa loob ng 2 minuto, pagkatapos ay bawasan sa 0.05 µg/kg/min continuous infusion, kasama ang propofol boluses na 10-20 mg bawat 20-30 segundo hanggang makamit ang target sedation. 2

Mga Alternatibong Dosing Regimen:

  • Para sa cardiac procedures, ang remifentanil 1-2 µg/kg/min ay epektibo kapag pinagsama sa propofol target concentration na 1.2 µg/mL, base sa pharmacokinetic-guided approach 3
  • Ang propofol ay dapat binabawasan ng 50-75% mula sa monotherapy doses dahil sa synergistic effects ng kombinasyon 2
  • Gumamit ng propofol boluses na 5-15 mg at remifentanil infusion adjustments na 25-50% bawat 2-5 minuto para sa mas ligtas na titration 2

Kritikal na Safety Warnings

Ang propofol-remifentanil combination ay gumagawa ng mas malalim na sedation at mas mataas na respiratory depression kumpara sa bawat gamot na mag-isa. 1, 2

Mahalagang Tandaan:

  • Ang propofol ay walang analgesic properties—kailangan ang remifentanil para sa painful procedures tulad ng coronary angiography 2, 4
  • Ang kombinasyon ay gumagawa ng synergistic respiratory depression na lampas sa bawat agent na mag-isa 2, 5
  • Mas mataas ang incidence ng apnea at hypoxemia, lalo na kung mabilis ang drug administration 2, 5

Mandatory Monitoring Requirements

Kailangan ng dedicated healthcare provider na walang ibang ginagawa kundi mag-monitor ng pasyente sa buong procedure. 2, 6

Tuluy-tuloy na Monitoring:

  • Pulse oximetry at capnography para sa early detection ng hypoventilation 2, 6
  • Blood pressure at heart rate monitoring 1, 4
  • Maintain vascular access sa buong procedure at hanggang mawala ang risk ng cardiorespiratory depression 1, 2
  • Supplemental oxygen administration ay mandatory 2, 4

Mga Dapat Ihanda

  • Reversal agents (naloxone para sa remifentanil) ay dapat immediately available 2, 6
  • Airway management equipment kasama ang bag-mask ventilation 6
  • Ang provider ay dapat trained sa pag-manage ng respiratory complications 5

Cardiovascular Effects

Ang propofol ay nagdudulot ng dose-dependent decrease sa cardiac output, systemic vascular resistance, at arterial pressure. 4, 7

  • Ang remifentanil ay may mas smooth hemodynamic profile kumpara sa propofol alone 8
  • Ang hypotension ay karaniwang tumutugon agad sa dose reduction o pag-stop ng infusion 4
  • Ang heart rate ay bumababa ng 20-24% at cardiac index ay bumababa ng 6% pagkatapos ng induction 3, 7

Mga Common Pitfalls na Iwasan

  • Huwag magbigay ng mabilis na drug administration—mag-titrate nang dahan-dahan para maiwasan ang hypotension at respiratory depression 1, 6
  • Huwag mag-bolus dosing para sa parehong propofol at remifentanil dahil sa respiratory depression risk 2
  • Hayaan ang sapat na oras sa pagitan ng doses para ma-assess ang peak effect bago magbigay ng additional drug 1, 2
  • Huwag kalimutan na ang propofol ay walang analgesic effect—kailangan ang remifentanil para sa pain control 2, 4

Recovery Profile

  • Ang return to alertness ay nangyayari pagkatapos ng 10 ± 6 minuto sa remifentanil group 8
  • Ang early extubation ay feasible pagkatapos ng remifentanil continuous infusions na ginamit sa cardiac procedures 3, 9
  • Ang postoperative analgesia ay satisfactory kapag properly managed ang transition mula sa remifentanil 3

Kontra-indikasyon

  • Allergy sa egg, soy, o sulfite (para sa propofol) 4, 6
  • Hemodynamically unstable patients ay dapat mag-ingat sa propofol loading doses 4

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Guideline

Propofol and Remifentanil Combination for Deep Sedation

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Guideline

Propofol Dosing and Administration Guidelines

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2026

Guideline

Sedation for Intubation

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Research

Comparison of three remifentanil dose-finding regimens for coronary artery surgery.

Journal of cardiothoracic and vascular anesthesia, 2003

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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