- Intraoperative recording of laryngeal adductor reflex and cortical motor evoked potentials during jugular foramen schwannoma surgery: a case report and literature review. [Review]
- CONCLUSIONS: We conclude that LAR with vagal nerve CoMEPs are two complementary methods and provide reliable information about the functional status of the vagus nerve during surgery.
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- Quantification of respiratory sounds by a continuous monitoring system can be used to predict complications after extubation: a pilot study. [Journal Article]
- To show that quantification of abnormal respiratory sounds by our developed device is useful for predicting respiratory failure and airway problems after extubation. A respiratory sound monitoring system was used to collect respiratory sounds in patients undergoing extubation. The recorded respiratory sounds were subsequently analyzed. We defined the composite poor outcome as requiring any of fol…
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- A novel smartphone app for blood pressure measurement: a proof-of-concept study against an arterial catheter. [Journal Article]
- Smartphones may provide a highly available access to simplified hypertension screening in environments with limited health care resources. Most studies involving smartphone blood pressure (BP) apps have focused on validation in static conditions without taking into account intraindividual BP variations. We report here the first experimental evidence of smartphone-derived BP estimation compared to…
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- Development and validation of a model to calculate anesthetic agent consumption from inspired and end-expired concentrations, minute ventilation, fresh gas flow and dead space ventilation. [Journal Article]
- Anesthetic agent consumption is often calculated as the product of fresh gas flow (FGF) and vaporizer dial setting (FVAP). Because FVAP of conventional vaporizers is not registered in automated anesthesia records, retrospective agent consumption studies are hampered. The current study examines how FVAP can be retrospectively calculated from the agent's inspired (FIN) and end-expired concentration…
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- Intra-abdominal hypertension in cardiac surgery patients: a multicenter observational sub-study of the Accuryn registry. [Journal Article]
- Intra-abdominal hypertension (IAH) is frequently present in the critically ill and is associated with increased morbidity and mortality. Conventionally, intermittent 'spot-check' manual measurements of bladder pressure in those perceived as high risk are used as surrogates for intra-abdominal pressure (IAP). True patterns of IAH remain unknown. We explored the incidence of IAH in cardiac surgery …
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- Using generalized additive models to decompose time series and waveforms, and dissect heart-lung interaction physiology. [Journal Article]
- Common physiological time series and waveforms are composed of repeating cardiac and respiratory cycles. Often, the cardiac effect is the primary interest, but for, e.g., fluid responsiveness prediction, the respiratory effect on arterial blood pressure also convey important information. In either case, it is relevant to disentangle the two effects. Generalized additive models (GAMs) allow estima…
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- Pulmonary gas exchange evaluated by machine learning: a computer simulation. [Journal Article]
- Using computer simulation we investigated whether machine learning (ML) analysis of selected ICU monitoring data can quantify pulmonary gas exchange in multi-compartment format. A 21 compartment ventilation/perfusion (V/Q) model of pulmonary blood flow processed 34,551 combinations of cardiac output, hemoglobin concentration, standard P50, base excess, VO2 and VCO2 plus three model-defining param…
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- Evaluation of machine learning models as decision aids for anesthesiologists. [Journal Article]
- Machine Learning (ML) models have been developed to predict perioperative clinical parameters. The objective of this study was to determine if ML models can serve as decision aids to improve anesthesiologists' prediction of peak intraoperative glucose values and postoperative opioid requirements. A web-based tool was used to present actual surgical case and patient information to 10 practicing an…
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- Validation of a non-invasive pressure-time index of the inspiratory muscles in spontaneously breathing newborn infants. [Journal Article]
- To validate the pressure-time index of the inspiratory muscles as a non-invasive index of inspiratory muscle function in spontaneously breathing infants by comparing it against the gold-standard pressure-time index of the diaphragm. Prospective observational cohort study of consecutive infants breathing unsupported in room air in a tertiary neonatal intensive care unit, studied prior to discharge…
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- Does the age of packed red blood cells, donor sex or sex mismatch affect the sublingual microcirculation in critically ill intensive care unit patients? A secondary interpretation of a retrospective analysis. [Journal Article]
- In vitro studies have thoroughly documented age-dependent impact of storage lesions in packed red blood cells (pRBC) on erythrocyte oxygen carrying capacity. While studies have examined the effect of pRBC age on patient outcome only few data exist on the microcirculation as their primary site of action. In this secondary analysis we examined the relationship between age of pRBC and changes of mic…
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- Validation of the patient State Index for monitoring sedation state in critically ill patients: a prospective observational study. [Journal Article]
- CONCLUSIONS: The PSI correlated positively with RASS scores, which represented a widely used tool for assessing sedation levels, and the values were significantly different among RASS scores. Additionally, the PSI had a high sensitivity and specificity for distinguishing light from deep sedation. The PSI could be useful for assessing sedation levels in ICU patients. University Hospital Medical Information Network (UMIN000035199, December 10, 2018).
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- Real-world outcomes of the hypotension prediction index in the management of intraoperative hypotension during non-cardiac surgery: a retrospective clinical study. [Journal Article]
- The Hypotension Prediction Index (HPI) is a validated algorithm developed by applying machine learning for predicting intraoperative arterial hypotension (IOH). We evaluated whether the HPI, combined with a personalized treatment protocol, helps to reduce IOH (depth and duration) and perioperative events in real practice. This was a single-center retrospective study including 104 consecutive adul…
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- The impact of urine flow on urine oxygen partial pressure monitoring during cardiac surgery. [Journal Article]
- CONCLUSIONS: PuO2 measurements were acquired with enough temporal resolution to demonstrate real-time PuO2 monitoring during CPB and the post-CPB period.
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- Costs, benefits and the prevention of patient deterioration. [Letter]
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- Is endotracheal tube displacement during head and neck extension due to ascending movement or tracheal lengthening? An observational ultrasonographic study. [Journal Article]J Clin Monit Comput. 2022 May 26 [Online ahead of print]JC
- Complications of the endotracheal tube (ETT) displacement during head and neck positional changes are related to not only the tip position but also the cuff pressure against the larynx. Here, we evaluated movement of the ETT cuff relative to laryngeal structures as well as tip displacement from the carina.Sixty-two patients scheduled for thyroidectomy were recruited. The distance from the cricoid…
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- Besdata Video Laryngeal Mask (BD-VLM)- a New Vision-Incorporated 3rd Generation Video Laryngeal Mask Airway : Dear editor. [Letter]J Clin Monit Comput. 2022 May 26 [Online ahead of print]JC
- Since the recent editorial 2, we were approached to evaluate another video laryngeal mask airway - the Besdata Video Laryngeal Mask (BD-VLM) TM, which has a different design concept, specifications and characteristics (Figure 1) compared to the other two.
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- Blind vs. video-laryngoscope-guided laryngeal mask insertion: A prospective randomized comparison of oropharyngeal leak pressure and fiberoptic grading. [Journal Article]
- CONCLUSIONS: The findings of our study suggest that the video-laryngoscope-guided LMA-Classic insertion with a standard blade technique may be a helpful alternative to blind insertion.
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- A simple technique to assess postoperative epidural functionality. [Journal Article]
- To describe an alternative method of measuring the Epidural Waveform Analysis (EWA), a technique through which anesthesiologists can confirm the position of a needle and/or catheter tip in the epidural space. EWA consists of epidural catheter transduction with a pressure system typically used for invasive arterial blood pressure monitoring which generates a characteristic oscillatory waveform (pr…
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- Evaluation of indigenously developed closed-loop automated blood pressure control system (claps): a preliminary study. [Journal Article]
- Closed-loop systems have been designed to assist anesthetists in controlling anesthetic drugs and also maintaining the stability of various physiological variables in the normal range. In the present study, we describe and clinically evaluated a novel closed-loop automated blood pressure control system (CLAPS) in patients undergoing cardiac surgery under cardiopulmonary bypass. Forty ASA II-IV ad…
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- What is new in respiratory monitoring? [Review]
- This paper provides a review of a selection of papers published in the Journal of Clinical Monitoring and Computing in 2020 and 2021 highlighting what is new within the field of respiratory monitoring. Selected papers cover work in pulse oximetry monitoring, acoustic monitoring, respiratory system mechanics, monitoring during surgery, electrical impedance tomography, respiratory rate monitoring, …
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- Development and validation of clinical prediction models for acute kidney injury recovery at hospital discharge in critically ill adults. [Journal Article]
- CONCLUSIONS: Models to predict AKI recovery upon hospital discharge in critically ill patients with AKI-3 showed poor performance in the general ICU population, similar to the biomarker NGAL. In cardiac surgery patients, discrimination was acceptable, and better than NGAL. These findings demonstrate the difficulty of predicting non-reversible AKI early.
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- Risk of bias for randomized controlled trials in Journal of Clinical Monitoring and Computing. [Journal Article]J Clin Monit Comput. 2022 Apr 26 [Online ahead of print]JC
- CONCLUSIONS: Reporting quality increased over time, with consistently high reporting quality in recently published JCMC RCTs.
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- Reply to: Life cycle assessment of memsorb use. [Letter]J Clin Monit Comput. 2022 Apr 25 [Online ahead of print]JC
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- Implementing a Rapid Response System in a tertiary-care hospital. A cost-effectiveness study. [Journal Article]
- CONCLUSIONS: The present analysis shows the RRS as a dominant, less costly and more effective structure compared to the non-RRS.
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- Intraoperative hypothermia in the neonate population: risk factors, outcomes, and typical patterns. [Journal Article]
- The risk factors, outcomes, and typical patterns of intraoperative hypothermia were studied in neonates to better guide the application of insulation measures in the operating room. This retrospective study enrolled 401 neonates undergoing surgery under general anaesthesia with tracheal intubation, including abdominal surgery, thoracic surgery, brain surgery, and others. The study collected basic…
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- Relationship between ANI and qNOX and between MAC and qCON during outpatient laparoscopic cholecystectomy using remifentanil and desflurane without muscle relaxants: a prospective observational preliminary study. [Journal Article]J Clin Monit Comput. 2022 Apr 21 [Online ahead of print]JC
- This study was designed to investigate qCON and qNOX variations during outpatient laparoscopic cholecystectomy using remifentanil and desflurane without muscle relaxants and compare these indices with ANI and MAC. Adult patients undergoing outpatient laparoscopic cholecystectomy were included in this prospective observational study. Maintenance of anesthesia was performed using remifentanil targe…
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- Changes in regional oxygen saturation of the kidney and brain of infants during hospitalization. [Journal Article]J Clin Monit Comput. 2022 Apr 20 [Online ahead of print]JC
- CONCLUSIONS: Unlike in most infants born after the late pre-term period, the renal rSO2 remained lower than the cerebral rSO2 on the expected date of birth in infants born very pre-term.
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- The utility of a multi-orifice epidural catheter when using the "Spray-as-You-Go" technique for topical Airway Anesthesia during Flexible Bronchoscopy, a randomised trial. [Journal Article]J Clin Monit Comput. 2022 Apr 20 [Online ahead of print]JC
- CONCLUSIONS: Endotracheal topical anesthesia via the multi-orifice epidural catheter (three holes/openings) during flexible bronchoscopy using the "spray-as-you-go" technique was appeared to be superior to the conventional method.
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