ArticleTurkish journal of anaesthesiology and reanimation2020
Interchangeability between Respiratory Variations of Subclavian Vein and Pulse Pressure Variation in Ventilated Patients in the Operating Room.
Article in Turkish journal of anaesthesiology and reanimation, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveFor mechanically ventilated patients, the best predictors of fluid responsiveness are dynamic parameters. Many methods that reflect cardiopulmonary interactions have been proposed to evaluate the preload dependency. In this study, we describe the interchangeability between respiratory variations of the subclavian (ΔSCV) vein and pulse pressure variation (PPV) in sedated and mechanically ventilated patients benefiting from kidney transplantation.
methodsThe ΔSCV via infraclavicular transthoracic echocardiography and PPV measurements were recorded simultaneously by a single operator. The Bland-Altman method assessed the interchangeability between ΔSCV and PPV.
resultsA total of 27 patients were prospectively included in the study. The Bland-Altman analysis showed a bias of +1.6 % for ΔSCV measurements vs. PPV. The limit of agreements was, respectively, -4% and 8%. The agreement between PPV >13% and ΔSCV >13% was 100%, and the agreement between PPV<9% and ΔSCV<9% was 58%. No misclassification (PPV<9% [0%] and PPV>13% [0%]) was observed.
conclusionΔSCV and PPV are interchangeable when assessing preload dependency in mechanically ventilated patients benefiting from kidney transplantation. ΔSCV appears to be a suitable tool because it is non-invasive, simple, easy and almost always available.
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