Types of Photoplethysmographic Waves in Adult Patients with Septic Shock

What this Trial Is About

Researchers are studying adult patients with septic shock to identify different types of photoplethysmographic waves and see if these waves relate to tissue blood flow problems. Photoplethysmography, used in pulse oximeters, creates waves that reflect blood flow and artery tone. This study uses a classification of six wave types that indicate varying levels of blood vessel tightening or widening and aims to understand these wave types in septic shock patients and their links to other health measures like capillary refill and serum lactate. The study observes the photoplethysmographic wave types in adults diagnosed with septic shock, classifying the waves based on arterial tone from vasoconstriction to severe vasodilation. It also examines how often each wave type appears and compares this with other measurements such as mottling score, heart rate, blood pressure, and perfusion index. There are no specific interventions or treatments being tested, as the focus is on wave pattern identification and correlation with clinical signs. Participants will undergo monitoring to record the photoplethysmographic waves shortly after inclusion. Researchers will collect data on various related clinical signs and lab values during the study. The main outcome measured is the type of photoplethysmographic wave observed after patients join the study. The participation involves evaluation of these waveforms and their association with tissue hypoperfusion markers, providing insights over the course of the patients' septic shock condition.

Types of Photoplethysmographic Waves in Adult Patients with Septic Shock