TIDAL VOLUME CHALLENGE EFFECT ON PULSE OXIMETRY PLETHYSMOGRAPHY WAVE VARIATION TO PREDICT FLUID RESPONSIVENESS IN SEPTIC SHOCK PATIENTS
Fayed, A., Habib, T., El Salamouny, M., Abdelhamid Elsharrab, A. (2025). TIDAL VOLUME CHALLENGE EFFECT ON PULSE OXIMETRY PLETHYSMOGRAPHY WAVE VARIATION TO PREDICT FLUID RESPONSIVENESS IN SEPTIC SHOCK PATIENTS. EKB Journal Management System, 7(3), 11-12. doi: 10.21608/alexpo.2025.401563.2214
Akram Muhammad Fayed; Tamer Nabil Habib; Mohammed Raafat El Salamouny; Ahmed Mohamed Abdelhamid Elsharrab. "TIDAL VOLUME CHALLENGE EFFECT ON PULSE OXIMETRY PLETHYSMOGRAPHY WAVE VARIATION TO PREDICT FLUID RESPONSIVENESS IN SEPTIC SHOCK PATIENTS". EKB Journal Management System, 7, 3, 2025, 11-12. doi: 10.21608/alexpo.2025.401563.2214
Fayed, A., Habib, T., El Salamouny, M., Abdelhamid Elsharrab, A. (2025). 'TIDAL VOLUME CHALLENGE EFFECT ON PULSE OXIMETRY PLETHYSMOGRAPHY WAVE VARIATION TO PREDICT FLUID RESPONSIVENESS IN SEPTIC SHOCK PATIENTS', EKB Journal Management System, 7(3), pp. 11-12. doi: 10.21608/alexpo.2025.401563.2214
Fayed, A., Habib, T., El Salamouny, M., Abdelhamid Elsharrab, A. TIDAL VOLUME CHALLENGE EFFECT ON PULSE OXIMETRY PLETHYSMOGRAPHY WAVE VARIATION TO PREDICT FLUID RESPONSIVENESS IN SEPTIC SHOCK PATIENTS. EKB Journal Management System, 2025; 7(3): 11-12. doi: 10.21608/alexpo.2025.401563.2214

TIDAL VOLUME CHALLENGE EFFECT ON PULSE OXIMETRY PLETHYSMOGRAPHY WAVE VARIATION TO PREDICT FLUID RESPONSIVENESS IN SEPTIC SHOCK PATIENTS

ALEXMED ePosters
Article 1, Volume 7, Issue 3, July 2025, Pages 11-12
Document Type: Preliminary preprint short reports of original research
DOI: 10.21608/alexpo.2025.401563.2214
Authors
Akram Muhammad Fayed1; Tamer Nabil Habib2; Mohammed Raafat El Salamouny2; Ahmed Mohamed Abdelhamid Elsharrab* 1
1Department of Critical Care Medicine, Faculty of Medicine, Alexandria University
2Department of Critical Care, Faculty of Medicine, Alexandria University
Abstract
Introduction:
Sepsis is a critical condition caused by a dysregulated immune response to infection, often leading to organ dysfunction and high mortality, especially in intensive care units. Septic shock, its most severe form, involves circulatory collapse and poor tissue perfusion. Fluid resuscitation is vital to restore hemodynamics, but excessive fluids may cause harm. Traditional static measures like central venous pressure (CVP) fail to reliably predict fluid responsiveness. Dynamic indices such as pulse pressure variation (PPV) are more accurate but require invasive monitoring. Pulse oximetry plethysmography waveform variation (POPV) offers a non-invasive alternative, reflecting respiratory-induced changes in ventricular preload. Its accuracy improves with a tidal volume challenge (TVC), a maneuver temporarily increasing tidal volume to enhance cardiopulmonary interactions. Combining POPV with TVC allows accurate, bedside, non-invasive prediction of fluid responsiveness, even under lung-protective ventilation strategies. This approach aligns with precision-guided care, minimizes fluid overload risk, and is feasible in both resource-rich and limited settings.


Aim of the Work:
The aim of this work is to assess tidal volume challenge effect on pulse oximetry plethysmography wave variation as a non-invasive method to predict fluid responsiveness in septic shock mechanically ventilated patients.
Keywords
PULSE; OXIMETERY; PLETHYSMOGRAPHY; WAVE; VARIATION
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