Journal of clinical monitoring and computing
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J Clin Monit Comput · Aug 2022
Clinical TrialComparisons of the efficiency of respiratory rate monitoring devices and acoustic respiratory sound during endoscopic submucosal dissection.
During moderate sedation for gastrointestinal endoscopic submucosal dissection (ESD), monitoring of ventilatory function is recommended. We compared the following techniques of respiratory rate (RR) measurement with respiratory sound (RRa): capnography (RRc), thoracic impedance (RRi), and plethysmograph (RRp). This study enrolled patients aged ≥ 20 years who underwent esophageal (n = 19) and colorectal (n = 5) ESDs. ⋯ During esophageal ESD, RRa and RRp may be a good parameter to detect bradypnea or apnea. RRc, RRa and RRp are useful for reliable during colorectal ESD. Trial registration UMIN-CTR (UMIN000025421).
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J Clin Monit Comput · Aug 2022
ReviewPreoperative heart rate variability as a predictor of perioperative outcomes: a systematic review without meta-analysis.
Heart rate variability (HRV) is a predictor of mortality and morbidity after non-lethal cardiac ischemia, but the relation between preoperatively measured HRV and intra- and postoperative complications is sparsely studied and most recently reviewed in 2007. We, therefore, reviewed the literature regarding HRV as a predictor for intra- and postoperative complications and outcomes. We carried out a systematic review without meta-analysis. ⋯ Detrended fluctuation analysis of HRV is a promising candidate for predicting postoperative atrial fibrillation. This updated review of the relation between preoperative HRV and surgical outcome suggests a clinically relevant role of HRV but calls for high quality studies due to methodological heterogeneity in the current literature. Areas for future research are suggested.
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J Clin Monit Comput · Aug 2022
Observational StudyDynamic relative regional strain visualized by electrical impedance tomography in patients suffering from COVID-19.
Respiratory failure due to SARS-CoV-2 may progress rapidly. During the course of COVID-19, patients develop an increased respiratory drive, which may induce high mechanical strain a known risk factor for Patient Self-Inflicted Lung Injury (P-SILI). We developed a novel Electrical Impedance Tomography-based approach to visualize the Dynamic Relative Regional Strain (DRRS) in SARS-CoV-2 positive patients and compared these findings with measurements in lung healthy volunteers. ⋯ Lung ultrasound scores correlated with the number of pixels showing DRRS values above the derived threshold. Using Electrical Impedance Tomography we were able to generate, for the first time, images of DRRS which might indicate P-SILI in patients suffering from COVID-19. Trial Registration This observational study was registered 06.04.2020 in German Clinical Trials Register (DRKS00021276).
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J Clin Monit Comput · Aug 2022
Observational StudyComparison of cutaneous facial temperature using infrared thermography to standard temperature measurement in the critical care setting.
To assess the accuracy and precision of infrared cameras compared to traditional measures of temperature measurement in a temperature, humidity, and distance controlled intensive care unit (ICU) population. This was a prospective, observational methods comparison study in a single centre ICU in Metropolitan Melbourne, Australia. A convenience sample of 39 patients admitted to a single room equipped with two ceiling mounted thermal imaging cameras was assessed, comparing measured cutaneous facial temperature via thermal camera to clinical temperature standards. ⋯ It has a moderate ability to discriminate fever. It is unclear if this would be sensitive enough for infection screening purposes. Fig. 1 Bland-Altman plots for temperatures measured using clinical standards to infrared camera. a Wide-angle camera versus bladder temperature. b Narrow-angle camera versus bladder temperature.