Analyzing the value of monitoring duodenal mucosal perfusion using photoplethysmography
نویسنده
چکیده
Photoplethysmography (PPG) is a technique that permits noninvasive measurement of changes in the volume of tissues. A novel device uses PPG to assess changes in duodenal mucosal perfusion. When tested in septic piglets, data obtained using this device correlate with the blood lactate concentration and duodenal serosal microvascular blood flow as measured with a laser Doppler flowmeter. This new PPG-based approach for continuously monitoring gut mucosal perfusion warrants further development, leading to prospective clinical trials in patients.
منابع مشابه
Assessment of Photoplethysmography Method in Extraction of Hemoglobin Concentration
Background: The importance of continuous monitoring along with rapid and accurate notification of changes in blood components such as hemoglobin concentration, especially in acute situations, encourages researchers to use non-invasive methods for measuring.Objective: This study was aimed to investigate the correlation between hemoglobin concentration and photoplethysmogram (PPG) and the p...
متن کاملHybrid optical imaging technology for long-term remote monitoring of skin perfusion and temperature behavior.
Photoplethysmography imaging (PPGI) and infrared thermography imaging (IRTI) are contactless camera-based measurement methods for monitoring a wide range of basic vital parameters. In particular, PPGI enhances the classical contact-based photoplethysmography. Approved evaluation algorithms of the well-established PPG method can easily be adapted for detection of heart rate, heart rate variabili...
متن کاملMP1 - Photoplethysmographic Imaging for the Evaluation of Peripheral Blood Perfusion in a Clinical Setting
The ability to provide non-contact monitoring of blood perfusion, in patients susceptible to diseases such as diabetic foot, is exceptionally useful in a clinical setting. Recently, this has become achievable through a widely-used technique known as photoplethysmography. After extensively reviewing the literature on clinical applications for photoplethysymography, we began to explore the potent...
متن کاملConfocal laser endomicroscopy reliably detects sepsis-related and treatment-associated changes in intestinal mucosal microcirculation.
BACKGROUND Microcirculatory alterations play a central role in the pathophysiology of sepsis. We investigated probe-based confocal laser endomicroscopy (pCLE) to assess alterations in mucosal microcirculatory perfusion in vivo in a porcine model of septic shock and in patients fulfilling consensus criteria for severe sepsis. METHODS Septic shock was induced using a faecal peritonitis model in...
متن کاملDuodenal acidification stimulates gastric H2S release through upregulating mRNA expression of cystathionine gamma lyase
Introduction: It has been reported the alkaline response of pancreas to duodenal acidification is partly mediated through duodenal release of H2S, but till now the effect of duodenal acidification on gastric H2S release has not been investigated. Therefore, the present study designed to evaluate the effects of duodenal acidification on gastric H2S release and level of mRNA expression of cys...
متن کامل