BACKGROUND Mild hypercapnia is permitted during surgeries in sitting position under general anesthesia to maintain cerebral regional oxygen saturation (rSO2). However, since hypoventilation may cause gas exchange impairment, we evaluated effects of mild hypercapnia on lung oxygenation during shoulder arthroscopy in sitting position. MATERIAL AND METHODS Forty patients were randomly allocated to...

Sitting or orthostatic positions and trinitrine-like drugs reduce venous return. We focused on the non-invasive assessment of postural-induced cardiovascular stress and isosorbide dinitrate (IDN) induced changes in 8 male patients with coronary artery disease (CAD), using polygraphic recordings by means of a Thermistor Pulse Transducer. The pre-ejection period (PEP) is sensitive to reduced prel...

BACKGROUND Sitting time and breaks in sitting influence cardio-metabolic health. New monitors (e.g. activPAL™) may be more accurate for measurement of sitting time and breaks in sitting although how to optimize measurement accuracy is not yet clear. One important issue is the minimum sitting/upright period (MSUP) to define a new posture. Using the activPAL™, we investigated the effect of variat...

BACKGROUND Prolonged sitting is associated with cardiometabolic and vascular disease. Despite emerging evidence regarding the acute health benefits of interrupting prolonged sitting time, the effectiveness of different modalities in older adults (who sit the most) is unclear. METHODS In preparation for a future randomized controlled trial, we enrolled 10 sedentary, overweight or obese, postme...

It is difficult for developers, researchers, and consumers to compare results among emerging wearable technology without using a uniform set of standards. This study evaluated the accuracy commercially available heart rate (HR) monitors Consumer Technology Association (CTA) Participants (N = 23) simultaneously wore Polar chest strap (criterion measure), Jabra Elite earbuds, Scosche Rhythm 24 ar...

This study evaluated the effects of inhalation of Lavender essential oil on vital signs in ICU open-heart surgery. This study is a clinical single-blind trial. The study was conducted on 40 patients who had open-heart surgery in the Cardiac ICU of two Hospitals of Tehran University of Medical Sciences, 2012. Criteria included: full Consciousness, lack of hemorrhage, lack of heart rate reduction...

This study evaluated the effects of inhalation of Lavender essential oil on vital signs in ICU open-heart surgery. This study is a clinical single-blind trial. The study was conducted on 40 patients who had open-heart surgery in the Cardiac ICU of two Hospitals of Tehran University of Medical Sciences, 2012. Criteria included: full Consciousness, lack of hemorrhage, lack of heart rate reduction...

This study presents the use of a multi-channel opto-electronic sensor (OEPS) to effectively monitor critical physiological parameters whilst preventing motion artefact as increasingly demanded by personal healthcare. The aim of this work was to study how to capture the heart rate (HR) efficiently through a well-constructed OEPS and a 3-axis accelerometer with wireless communication. A protocol ...

The aim of this study was to assess the influence of the handgrip test (HGT) on: (1) pial artery pulsation (cc-TQ), (2) subarachnoid space (SAS) width (sas-TQ) and (3) the relationship between peripheral blood pressure (BP), heart rate (HR), cerebral blood flow velocity (CBFV), resistive index (RI), cc-TQ and sas-TQ. The study was performed on 29 healthy volunteers (11 men and 18 women) with a ...