Pleth Variability Index in Pulmonary Embolism

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Pulmonary embolism(PE) is a ventilation/perfusion disorder caused by obstruction of the pulmonary artery, usually by a thrombus. The Pleth Variability Index(PVI) is a continuous, noninvasive indicator of dynamic perfusion index changes in photoplethysmography that occur in at least one respiratory cycle. The aim of this study is to evaluate the prognostic and mortality indicator role of PVI in patients with PE, hypothesizing that PVI could serve as a valuable guide in this disease where perfusion impairment is fundamental.

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• patients diagnosed pulmonary embolism

  Patients over the age of 18 who presented to the emergency department of a tertiary care hospital with complaints of cough, dyspnea, chest pain, tachycardia, hemoptysis, and syncope, and were diagnosed with pulmonary embolism (PE) confirmed by pulmonary computed tomographic angiography (CTPA), were included in our study. Informed consent was obtained from the patients who were stable and from the relatives of the patients who were unstable. Plethysmographic variability index (PVI) and Perfusion index (PI) levels were automatically obtained 2 minutes after the device was attached, using a probe placed on the index finger of the hand while the patient was lying supine. PI and PVI measurements and data were collected consecutively by the same individual. The measurements were taken using the Masimo Radical-7® Pulse CO-Oximeter, which is approved by the U.S. Food and Drug Administration.

  Kezelés: Masimo Radical-7® Pulse CO-Oximeter