New Study Confirms Agreement of Pulmonary Blood Flow Measurements between VQm PHM™ and Current Clinical Gold Standard.
Vancouver, B.C. – Rostrum Medical Innovations today announced the findings of its recent clinical validations presented at the European Society of Intensive Care Medicine LIVES 2021.
Dr. (Prof) Neal Fleming presented the findings of a recent study conducted on mechanically ventilated patients, undergoing cardiopulmonary bypass (CPB) to evaluate measurements of Pulmonary Blood Flow (PBF) acquired from the non-invasive, bedside VQm Pulmonary Health Monitor™ (PHM), in comparison to current clinical gold standards. PBF measurements were made using the VQm PHM™ through a modified differential fick equation and sequential gas delivery (SGD), compared to PBF estimated from intermittent bolus thermodilution cardiac output (TDCO) method and shunt fraction estimated from central venous and arterial blood gases with the use of the Berggren equation.
The primary outcome from the study confirms an agreement between the two paired measurements (reference PBF [TDCO – Shunt] and the VQm Pulmonary Health Monitor™) based on data recorded from 13 patients. The mean difference between the PBF values was 0.1 L/min, and the 95% limits of agreement were 1.3 and -1.0 L/min (Figure 1). The results also indicated a positive relationship between the paired measurements, with calculated correlation coefficient value of r = 0.8 and p <0.0005. These results represent the first in-human data collected using a new, non-invasive cardiopulmonary health monitor measured at bedside and in near-real time.
(Figure 1) Plot of differences between paired PBF measurements. Correlation coefficient between the two methods is r = 0.8 with p <0.0005.
About Rostrum Medical
Rostrum Medical is dedicated to empowering medical practitioners with new and useful solutions to help solve everyday challenges that medical professionals face. Rostrum was established with a goal to deliver novel solutions to problematic uncertainties in modern day practice. With a team of some of the world’s most progressive clinicians, combined with engineering and business expertise with a history of commercial success, Rostrum is driven by one mission – to address clinical needs in healthcare.
About VQm Pulmonary Health Monitor™
The VQm Pulmonary Health Monitor™ is a novel monitoring device that aims to provide clinicians with near real-time physiological insight into the effects of changes in lung mechanics of mechanically ventilated patients. The VQm PHM™ was developed with the intention to assist physicians in their management of mechanical ventilation by providing measurements of the following physiological parameters: Shunt Index (Qsi), Dead space, Pulmonary Blood Flow (PBF), and Functional Residual Capacity (FRC). The VQm Pulmonary Health Monitor™ is now Health Canada approved.
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