A specific and unique aspect of cardiorespiratory activity can be captured by dividing the
heart rate (HR) by the respiration rate (RR), giving the pulse-respiration quotient (PRQ …

Introduction Increasingly, medical schools are integrating Point of Care Ultrasound (POCUS)
into their curricula. This review investigated the available literature on how best to integrate …

Cerebral hemodynamics, eg, cerebral blood flow, can be measured and quantified using
many different methods, with transcranial Doppler ultrasound (TCD) being one of the most …

New Findings What is the central question of this study? Cerebrovascular reactivity (CVR) is
a common functional test to assess brain health, and impaired CVR has been associated …

We examined two assumptions of the modified rebreathing technique for the assessment of
the ventilatory central chemoreflex (CCR) and cerebrovascular CO2 reactivity (CVR) …

Background Functional cerebrovascular regulatory mechanisms are important for
maintaining constant cerebral blood flow and oxygen supply in heathy individuals and are …

Introduction: The most common side effect of ticagrelor is dyspnea, which leads to premature
withdrawal of this life-saving medication in 6.5% of patients. Increased chemoreceptors' …

The integrated responses regulating cerebral blood flow are understudied in women,
particularly in relation to potential regional differences. In this study, we compared dynamic …

Introduction Respiratory muscle dysfunction, being a common cause of weaning failure, is
strongly associated with prolonged mechanical ventilation (MV) and prolonged stay in …

New Findings What is the central question of this study? We characterized and compared
the cardiorespiratory and cerebrovascular responses to the 'Duffin'modified hyperoxic CO2 …