1,591 results match your criteria Journal of clinical monitoring and computing[Journal]


In response to: "Temperature monitoring with zero-heat-flux technology in neurosurgical patients".

J Clin Monit Comput 2019 Feb 15. Epub 2019 Feb 15.

Division of Anesthesiology, Department of Anesthesiology and Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.

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http://dx.doi.org/10.1007/s10877-019-00275-2DOI Listing
February 2019

Rebuttal to: "As simple as possible, but not simpler: estimating the effective arterial elastance at bedside".

J Clin Monit Comput 2019 Feb 14. Epub 2019 Feb 14.

Department Anaesthesia and Intensive Care Units, Humanitas Research Hospital, Humanitas University, Milan, Italy.

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http://dx.doi.org/10.1007/s10877-019-00279-yDOI Listing
February 2019

Predicting tachycardia as a surrogate for instability in the intensive care unit.

J Clin Monit Comput 2019 Feb 14. Epub 2019 Feb 14.

Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA.

Tachycardia is a strong though non-specific marker of cardiovascular stress that proceeds hemodynamic instability. We designed a predictive model of tachycardia using multi-granular intensive care unit (ICU) data by creating a risk score and dynamic trajectory. A subset of clinical and numerical signals were extracted from the Multiparameter Intelligent Monitoring in Intensive Care II database. Read More

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http://link.springer.com/10.1007/s10877-019-00277-0
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http://dx.doi.org/10.1007/s10877-019-00277-0DOI Listing
February 2019
2 Reads

Correction to: Economic and operational impact of an improved pathway using rapid molecular diagnostic testing for patients with influenza-like illness in a German emergency department.

J Clin Monit Comput 2019 Feb 14. Epub 2019 Feb 14.

Department of Emergency Medicine, University Hospital Marburg, 35033, Marburg, Germany.

The article Economic and operational impact of an improved pathway using rapid molecular diagnostic testing for patients with influenza-like illness in a German emergency department, written by Matthias Brachmann, Katja Kikull, Clemens Kill and Susanne Betz, was originally published electronically on the publisher's internet portal (currently SpringerLink) on 04 January 2019 without open access. Read More

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http://dx.doi.org/10.1007/s10877-019-00262-7DOI Listing
February 2019

NIPE is related to parasympathetic activity. Is it also related to comfort?

J Clin Monit Comput 2019 Feb 13. Epub 2019 Feb 13.

EA 4489-Perinatal Environment and Health, University of Lille, 59000, Lille, France.

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http://dx.doi.org/10.1007/s10877-019-00276-1DOI Listing
February 2019

Temperature monitoring with zero-heat-flux technology in neurosurgical patients.

J Clin Monit Comput 2019 Feb 9. Epub 2019 Feb 9.

Department of Anesthesiology, University Hospital Göttingen, Göttingen, Germany.

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http://dx.doi.org/10.1007/s10877-019-00274-3DOI Listing
February 2019

Trending algorithm discriminates hemodynamic from injury related TcMEP amplitude loss.

J Clin Monit Comput 2019 Feb 6. Epub 2019 Feb 6.

DABNM, Division of Operating Rooms, University of California San Francisco, San Francisco, CA, USA.

Jasiukaitis and Lyon (J Clin Monit Comput, https://doi.org/10.1007/s10877-018-0181-9 , 2018) described an motor evoked potential (MEP)amplitude trending system to detect MEP amplitude loss against a background of MEP variability. Read More

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http://dx.doi.org/10.1007/s10877-019-00272-5DOI Listing
February 2019

Evaluation and application of a method for estimating nasal end-tidal O fraction while administering supplemental O.

J Clin Monit Comput 2019 Feb 6. Epub 2019 Feb 6.

Departments of Anesthesiology and Bioengineering, University of Utah, 84132, Salt Lake City, UT, USA.

This paper describes a method for estimating the oxygen enhanced end-tidal fraction of oxygen (FO), the end-tidal fraction of oxygen (FO) that is raised by administering supplemental oxygen. The paper has two purposes: the first is to evaluate the method's accuracy on the bench and in volunteers; the second purpose is to demonstrate how to apply the method to compare two techniques of oxygen administration. The method estimates FO by analyzing expired oxygen as oxygen washes out of the lung. Read More

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http://dx.doi.org/10.1007/s10877-019-00264-5DOI Listing
February 2019

Hypoventilation patterns during bronchoscopic sedation and their clinical relevance based on capnographic and respiratory impedance analysis.

J Clin Monit Comput 2019 Feb 6. Epub 2019 Feb 6.

Department of Thoracic Medicine, Chang Gung Memorial Hospital, Chang Gung University, College of Medicine, 199 Tun-Hwa N. Rd., Taipei, Taiwan.

Capnography involves the measurement of end-tidal CO (EtCO) values to detect hypoventilation in patients undergoing sedation. In a previous study, we reported that initiating a flexible bronchoscopy (FB) examination only after detecting signs of hypoventilation could reduce the risk of hypoxemia without compromising the tolerance of the patient for this type of intervention. We hypothesize that hypoventilation status could be determined with greater precision by combining thoracic impedance-based respiratory signals, RESP, and EtCO signals obtained from a nasal-oral cannula. Read More

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http://dx.doi.org/10.1007/s10877-019-00269-0DOI Listing
February 2019
1 Read

Observational study of newborn infant parasympathetic evaluation as a comfort system in awake patients admitted to a pediatric intensive care unit.

J Clin Monit Comput 2019 Feb 5. Epub 2019 Feb 5.

Pediatric Intensive Care Unit, Burgos University Hospital, Avenida Islas Baleares s/n, CP 09006, Burgos, Spain.

To compare the newborn infant parasympathetic evaluation system (NIPE) scores with a validated clinical scale using two different nebulizers in children with bronchiolitis admitted to a PICU. Comfort was evaluated using the COMFORT-behavior scale (CBS) before (T1), during (T2) and after (T3) each nebulization. In order to compare NIPE and CBS values during the whole T1 to T3 period, the variable Dif-CBS was defined as the difference between maximal and minimal CBS scores, and Dif-NIPE as the difference between 75th and 25th percentile NIPE values. Read More

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http://dx.doi.org/10.1007/s10877-019-00268-1DOI Listing
February 2019
2 Reads

An exploratory clinical evaluation of a head-worn display based multiple-patient monitoring application: impact on supervising anesthesiologists' situation awareness.

J Clin Monit Comput 2019 Feb 5. Epub 2019 Feb 5.

Department of Anesthesia and Critical Care, University Hospital of Würzburg, Oberdürrbacher Straße 6, 97080, Würzburg, Germany.

Purpose: Supervising anesthesiologists overseeing several operating rooms must be aware of the status of multiple patients, so they can consult with the anesthetist in single operating rooms or respond quickly to critical events. However, maintaining good situation awareness can be challenging when away from patient bedsides or a central monitoring station. In this proof-of-concept study, we evaluated the potential of a head-worn display that showed multiple patients' vital signs and alarms to improve supervising anesthesiologists' situation awareness. Read More

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http://dx.doi.org/10.1007/s10877-019-00265-4DOI Listing
February 2019

Did a training seminar really reduce endotracheal cuff pressure?

J Clin Monit Comput 2019 Feb 1. Epub 2019 Feb 1.

Department of Anesthesiology, Chi Mei Medical Center, No. 901, ChungHwa Road, YungKung Dist, Tainan, 71004, Taiwan.

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http://dx.doi.org/10.1007/s10877-019-00271-6DOI Listing
February 2019

IONM practice guidelines for the IONM supervising professional: some questions.

Authors:
Anurag Tewari

J Clin Monit Comput 2019 Jan 30. Epub 2019 Jan 30.

Evokes LLC, Mason, Cincinnati, OH, 45050, USA.

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http://dx.doi.org/10.1007/s10877-019-00263-6DOI Listing
January 2019

Bilateral erector spinae plane block with single injection.

J Clin Monit Comput 2019 Jan 28. Epub 2019 Jan 28.

Department of Anesthesiology and Reanimation, Kocaeli University, 41380, Izmit, Kocaeli, Turkey.

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http://dx.doi.org/10.1007/s10877-018-00247-yDOI Listing
January 2019

Measuring the accuracy of propofol target-controlled infusion (TCI) before and after surgery with major blood loss.

J Clin Monit Comput 2019 Jan 22. Epub 2019 Jan 22.

Institute of Anaesthesia and Intensive Care Medicine, Spital Thurgau, Pfaffenholzstrasse 4, 8501, Frauenfeld, Switzerland.

Target-controlled infusion (TCI) is based on pharmacokinetic models designed to achieve a desired drug level in the blood. TCI's predictive accuracy of plasma propofol levels at the end of surgery with major blood loss has not been well established. This prospective observational study included adult patients (BMI 20-35 kg/m) undergoing surgery with expected blood loss ≥ 1500 mL. Read More

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http://dx.doi.org/10.1007/s10877-019-00261-8DOI Listing
January 2019
2 Reads

Non-sinusoidal waves in the EEG and their simulated effect on anaesthetic quantitative EEG monitors.

J Clin Monit Comput 2019 Jan 22. Epub 2019 Jan 22.

Department of Anaesthesiology, Waikato Clinical School, University of Auckland, Hamilton, New Zealand.

The effect of anaesthetic drugs on the cortex are commonly estimated from the electroencephalogram (EEG) by quantitative EEG monitors such as the Bispectral Index (BIS). These monitors use ratios of high to low frequency power which assumes that each neurological process contributes a unique frequency pattern. However, recent research of the effect of deep brain stimulation on EEG beta oscillations suggests that wave shape, a non-sinusoidal feature that is only measurable in the time-domain, can change the frequency 'signature' of a neurological rhythmical process by the inclusion or removal of harmonic frequencies. Read More

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http://dx.doi.org/10.1007/s10877-019-00254-7DOI Listing
January 2019

Preoperative cerebral and renal oxygen saturation and clinical outcomes in pediatric patients with congenital heart disease.

J Clin Monit Comput 2019 Jan 21. Epub 2019 Jan 21.

Department of Anesthesiology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan.

We examined the predictability of preoperative cerebral and renal rSO values for outcomes in pediatric patients undergoing cardiac surgery under cardiopulmonary bypass (CPB). Patients who underwent pediatric cardiac surgery under CPB between September 2015 and September 2017 were enrolled in this study. Patients monitored with both cerebral and renal rSO at the beginning of surgery were included. Read More

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http://link.springer.com/10.1007/s10877-019-00260-9
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http://dx.doi.org/10.1007/s10877-019-00260-9DOI Listing
January 2019
2 Reads

Pulmonary lung Doppler signals: normative data in a pediatric population compared with adults.

J Clin Monit Comput 2019 Jan 19. Epub 2019 Jan 19.

Stanford Children's Hospital, Palo Alto, CA, USA.

Lung Doppler signals (LDS) acquired via transthoracic echocardiography is a novel technology previously reported in adults for use in detecting pulmonary hypertension. The aim of this study was to characterize LDS in healthy children to establish normative pediatric LDS data, and compare the pediatric data to the previously published healthy adult LDS. In this prospective, two-center study, LDS were acquired in children without cardiopulmonary disease using a 2 MHz transthoracic pulsed Doppler transducer. Read More

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http://link.springer.com/10.1007/s10877-019-00258-3
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http://dx.doi.org/10.1007/s10877-019-00258-3DOI Listing
January 2019
4 Reads

Barriers to ultrasound guidance for central venous access: a survey among Dutch intensivists and anaesthesiologists.

J Clin Monit Comput 2019 Jan 19. Epub 2019 Jan 19.

Department of Anaesthesiology, Intensive Care and Pain Medicine, Catharina Hospital, Michelangelolaan 2, 5623 EJ, Eindhoven, The Netherlands.

Accumulating evidence shows that ultrasound (US) guidance improves effectiveness and safety of central venous catheter (CVC) placement. Several international guidelines therefore recommend the use of US for placement of CVCs. However, surveys show that the landmark-based technique is still widely used, while the percentage of physicians using US is increasing less than expected. Read More

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http://dx.doi.org/10.1007/s10877-018-00246-zDOI Listing
January 2019
1 Read

Level of agreement of point-of-care and laboratory HbA1c measurements in the preoperative outpatient clinic in non-diabetic patients who are overweight or obese.

J Clin Monit Comput 2019 Jan 18. Epub 2019 Jan 18.

Department of Anesthesiology, Amsterdam UMC, VU University, Amsterdam Cardiovascular Sciences, De Boelelaan 1117, 1081, Amsterdam, The Netherlands.

Implementation of point-of-care HbA1c devices in the preoperative outpatient clinic might facilitate the early diagnosis of glycemic disturbances in overweight or obese patients undergoing surgery, but validation studies in this setting do not exist. We determined the level of agreement between a point-of-care and laboratory HbA1c test in non-diabetic patients visiting the outpatient clinic for preoperative risk profiling. Point-of-care HbA1c levels were measured in whole blood obtained by a finger prick (Siemens DCA Vantage HbA1c analyzer) and in hemolysed EDTA blood in the central laboratory (LAB). Read More

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http://dx.doi.org/10.1007/s10877-019-00255-6DOI Listing
January 2019

Usefulness of combining clinical and biochemical parameters for prediction of postoperative pulmonary complications after lung resection surgery.

J Clin Monit Comput 2019 Jan 17. Epub 2019 Jan 17.

Department Thoracic Surgery, HGUGM, Madrid St/ Doctor Esquerdo 46, 28009, Madrid, Spain.

Early detection of patients with a high risk of postoperative pulmonary complications (PPCs) could improve postoperative strategies. We investigated the role of monitoring systemic and lung inflammatory biomarkers during surgery and the early postoperative period to detect patients at high risk of PPCs after lung resection surgery (LRS). This is a substudy of a randomized control trial on the inflammatory effects of anaesthetic drugs during LRS. Read More

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http://link.springer.com/10.1007/s10877-019-00257-4
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http://dx.doi.org/10.1007/s10877-019-00257-4DOI Listing
January 2019
5 Reads

Using the capnogram to assess pulmonary perfusion during a lobectomy: case studies.

J Clin Monit Comput 2019 Jan 17. Epub 2019 Jan 17.

Department of Anesthesiology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610041, China.

Capnography is an effective and non-invasive method for monitoring patients during general anesthesia and can reflect the changes in both the respiratory function as well as the circulatory function. In this paper, we present four cases of lobectomy in which we observed a "chair-like" waveform on performing capnography after the surgery. In all the cases, the appearance of this "chair-like" waveform led to the suspicion of a blockage in the pulmonary artery perfusion, which was then confirmed to be an obstruction in the pulmonary artery on further investigation. Read More

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http://dx.doi.org/10.1007/s10877-018-00249-wDOI Listing
January 2019

EOY summary 2018.

J Clin Monit Comput 2019 Jan 16. Epub 2019 Jan 16.

Intraoperative Neurophysiology Department, Abbott Northwestern Hospital, Minneapolis, MN, USA.

Clinical monitoring and technology are at the heart of anesthesiology, and new technological developments will help to define how anesthesiology will evolve as a profession. Anesthesia related research published in the JCMC in 2018 mainly pertained to ICU sedation with inhaled agents, anesthesia workstation technology, and monitoring of different aspects of depth of anesthesia. Read More

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http://dx.doi.org/10.1007/s10877-019-00256-5DOI Listing
January 2019

Predicting postoperative delirium and postoperative cognitive decline with combined intraoperative electroencephalogram monitoring and cerebral near-infrared spectroscopy in patients undergoing cardiac interventions.

J Clin Monit Comput 2019 Jan 11. Epub 2019 Jan 11.

Department of Acute Medicine, Section Cardiothoracic and Vascular Anesthesia, Cliniques Universitaires Saint Luc, Avenue Hippocrate 10, 1200, Brussels, Belgium.

Studies have associated electroencephalogram (EEG) suppression with postoperative delirium (POD) and postoperative cognitive decline (POCD). Otherwise, improving cerebral tissue oxygen saturation (rScO) seems beneficial. No study has evaluated the impact of EEG suppression and decreased rScO on the incidence of POD and POCD when the intraoperative management of patients is performed with a depth-of-anesthesia (DOA) monitor and a cerebral oximetry. Read More

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http://dx.doi.org/10.1007/s10877-019-00253-8DOI Listing
January 2019
2 Reads

Determining the accuracy of zero-flux and ingestible thermometers in the peri-operative setting.

J Clin Monit Comput 2019 Jan 8. Epub 2019 Jan 8.

Brighton and Sussex University Hospitals Trust, Royal Sussex County Hospital, Eastern Road, Brighton, East Sussex, BN2 5BE, UK.

Accurately monitoring peri-operative core temperature is a cornerstone of good practice. Relatively invasive devices such as oesophageal temperature probes and pulmonary artery catheters facilitate this, but are inappropriate for many patients. There remains a need for accurate monitors of core temperature that can be used in awake patients. Read More

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http://dx.doi.org/10.1007/s10877-019-00252-9DOI Listing
January 2019
1 Read

Synchronized mandibular movement and capnography: a novel approach to obstructive airway detection during procedural sedation-a post hoc analysis of a prospective study.

J Clin Monit Comput 2019 Jan 4. Epub 2019 Jan 4.

Department of Anesthesiology, CUB Erasme, Université Libre de Bruxelles, Route de Lennik 808, 1070, Brussels, Belgium.

Perioperative complications related to obstructive sleep apnea still occur despite the use of partial pressure end-tidal CO[Formula: see text] and pulse oximetry. Airway obstruction can complicate propofol sedation and a novel monitor combining mandibular movement analysis with capnography may facilitate its detection. Patients scheduled for sleep endoscopy were recruited and monitored with standard monitoring, [Formula: see text] and Jaw Activity (JAWAC) mandibular movement sensors. Read More

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http://link.springer.com/10.1007/s10877-018-00250-3
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http://dx.doi.org/10.1007/s10877-018-00250-3DOI Listing
January 2019
7 Reads

In vitro efficiency of 16 different Ca(OH) based CO absorbent brands.

J Clin Monit Comput 2019 Jan 4. Epub 2019 Jan 4.

Department of Anesthesiology, Intensive Care and Pain Therapy, OLV Hospital, Moorselbaan 164, 9300, Aalst, Belgium.

Data directly comparing CO absorbents tested in identical and clinically relevant conditions are scarce or non-existent. We therefore tested and compared the efficiency of 16 different brands of Ca(OH) based CO absorbents used as loose fill or a cartridge in a refillable canister under identical low flow conditions. CO absorbents efficiency was tested by flowing 160 mL/min CO into the tip of a 2 L balloon that was ventilated with an ADU anesthesia machine (GE, Madison, WI, USA) with a tidal volume of 500 mL and a respiratory rate of 10/min while running an O/air FGF of 300 mL/min. Read More

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http://dx.doi.org/10.1007/s10877-018-00248-xDOI Listing
January 2019
1 Read

Effects of propofol versus sevoflurane on cerebral circulation time in patients undergoing coiling for cerebral artery aneurysm: a prospective randomized crossover study.

J Clin Monit Comput 2019 Jan 4. Epub 2019 Jan 4.

Department of Endovascular Surgery, Graduate School of Medicine and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.

Many neuroendovascular treatments are supported by real-time anatomical and visual hemodynamic assessments through digital subtraction angiography (DSA). Here we used DSA in a single-center prospective randomized crossover study to assess the intracranial hemodynamics of patients undergoing coiling for cerebral aneurysm (n = 15) during sevoflurane- and propofol-based anesthesia. Color-coded DSA was used to define time to peak density of contrast medium (TTP) at several intravascular regions of interest (ROIs). Read More

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http://link.springer.com/10.1007/s10877-018-00251-2
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http://dx.doi.org/10.1007/s10877-018-00251-2DOI Listing
January 2019
3 Reads

Economic and operational impact of an improved pathway using rapid molecular diagnostic testing for patients with influenza-like illness in a German emergency department.

J Clin Monit Comput 2019 Jan 4. Epub 2019 Jan 4.

Department of Emergency Medicine, University Hospital Marburg, 35033, Marburg, Germany.

To evaluate the economic and operational effects of implementing a shorted diagnostic pathway during influenza epidemics. This retrospective study used emergency department (ED) data from the 2014/2015 influenza season. Alere i influenza A & B rapid molecular diagnostic test (RDT) was compared with the polymerase chain reaction (PCR) pathway. Read More

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http://dx.doi.org/10.1007/s10877-018-00243-2DOI Listing
January 2019

Monitoring of pulse pressure variation using a new smartphone application (Capstesia) versus stroke volume variation using an uncalibrated pulse wave analysis monitor: a clinical decision making study during major abdominal surgery.

J Clin Monit Comput 2019 Jan 3. Epub 2019 Jan 3.

Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.

Pulse pressure variation (PPV) and stroke volume variation (SVV) can be used to assess fluid status in the operating room but usually require dedicated advanced hemodynamic monitors. Recently, a smartphone application (Capstesia™), which automatically calculates PPV from a picture of the invasive arterial pressure waveform from any monitor screen (PPV), has been developed. The purpose of this study was to compare PPV with SVV from an uncalibrated pulse wave analysis monitor (SVV). Read More

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http://dx.doi.org/10.1007/s10877-018-00241-4DOI Listing
January 2019
1 Read

The fundamental contribution of the electromyogram to a high bispectral index: a postoperative observational study.

J Clin Monit Comput 2019 Jan 3. Epub 2019 Jan 3.

Department of Anesthesiology and Critical Care, Kyoto Prefectural University of Medicine, Kyoto, Japan.

The electromyogram (EMG) activity has been reported to falsely increase BIS. Conversely, EMG seems necessary to constitute the high BIS indicative of an awake condition, and may play a fundamental role in calculating BIS, rather than distorting the appropriate BIS. However, exactly how EMG is associated with a high BIS remains unclear. Read More

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http://link.springer.com/10.1007/s10877-018-00244-1
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http://dx.doi.org/10.1007/s10877-018-00244-1DOI Listing
January 2019
4 Reads

Near-real-time pulmonary shunt and dead space measurement with micropore membrane inlet mass spectrometry in pigs with induced pulmonary embolism or acute lung failure.

J Clin Monit Comput 2019 Jan 2. Epub 2019 Jan 2.

Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, 3010, Bern, Switzerland.

The multiple inert gas elimination technique (MIGET) using gas chromatography (GC) is an established but time-consuming method of determining ventilation/perfusion (VA/Q) distributions. MIGET-when performed using Micropore Membrane Inlet Mass Spectrometry (MMIMS)-has been proven to correlate well with GC-MIGET and reduces analysis time substantially. We aimed at comparing shunt fractions and dead space derived from MMIMS-MIGET with Riley shunt and Bohr dead space, respectively. Read More

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http://dx.doi.org/10.1007/s10877-018-00245-0DOI Listing
January 2019

Cerebral oxygen saturation monitoring in preeclamptic pregnant women undergoing cesarean section with spinal anesthesia: a prospective, observational study.

J Clin Monit Comput 2019 Jan 2. Epub 2019 Jan 2.

Department of Anesthesiology and Reanimation, Eskişehir Osmangazi University Faculty of Medicine, Meşelik Yerleşkesi, 26480, Eskisehir, Turkey.

It has been suggested that cerebral oximetry can detect acute and chronic changes in cerebral oxygen saturation due to pregnancy related complications. Furthermore, regional cerebral oxygenation saturation (rcSO) decreases were obtained during spinal anesthesia for cesarean section. The aim of this prospective observational study is to compare the effects of spinal anesthesia on rcSO in preeclamptic and normotensive pregnant women. Read More

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http://dx.doi.org/10.1007/s10877-018-00237-0DOI Listing
January 2019
3 Reads

Expanding the usefulness of hemodynamic waveform analysis in the critically Ill.

Authors:
Michael R Pinsky

J Clin Monit Comput 2019 Jan 2. Epub 2019 Jan 2.

Department of Critical Care Medicine, University of Pittsburgh School of Medicine, 1215.4 Kaufmann Medical Building, 3471 Fifth Avenue, Pittsburgh, PA, 15213, USA.

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http://dx.doi.org/10.1007/s10877-018-00239-yDOI Listing
January 2019

Anesthesia depth monitoring using alternative placement of entropy sensors: a prospective study.

J Clin Monit Comput 2018 Dec 19. Epub 2018 Dec 19.

FSBSI «Petrovsky NRCS», Abrikosovsky, 2, 119991, Moscow, Russia.

Spectral entropy is based on analysis of variations in electroencephalography and frontal electromyography, and is a safe and reliable method for anesthesia depth monitoring. However, standard frontal positioning of entropy electrodes in patients undergoing cardiac surgery is sometimes challenging. The present study aimed to compare standard entropy sensor placement with an alternative (infraorbital) site. Read More

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http://dx.doi.org/10.1007/s10877-018-00238-zDOI Listing
December 2018

Photoplethysmographic characterization of vascular tone mediated changes in arterial pressure: an observational study.

J Clin Monit Comput 2018 Dec 15. Epub 2018 Dec 15.

Hedenstierna Laboratory, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden.

To determine whether a classification based on the contour of the photoplethysmography signal (PPGc) can detect changes in systolic arterial blood pressure (SAP) and vascular tone. Episodes of normotension (SAP 90-140 mmHg), hypertension (SAP > 140 mmHg) and hypotension (SAP < 90 mmHg) were analyzed in 15 cardiac surgery patients. SAP and two surrogates of the vascular tone, systemic vascular resistance (SVR) and vascular compliance (Cvasc = stroke volume/pulse pressure) were compared with PPGc. Read More

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http://link.springer.com/10.1007/s10877-018-0235-z
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http://dx.doi.org/10.1007/s10877-018-0235-zDOI Listing
December 2018
8 Reads

Reliability of effective arterial elastance using peripheral arterial pressure as surrogate for left ventricular end-systolic pressure.

J Clin Monit Comput 2018 Dec 14. Epub 2018 Dec 14.

Department Anaesthesia and Intensive Care Units, Humanitas Research Hospital, Humanitas University, Milan, Italy.

To compare the effective arterial elastance (Ea) obtained from the arterial pressure with Ea calculated from left-ventricular (LV) pressure-volume analysis. Experimental study. LV pressure-volume data was obtained with a conductance catheter and arterial pressures were measured via a fluid-filled catheter placed in the proximal aorta, femoral and radial arteries. Read More

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http://dx.doi.org/10.1007/s10877-018-0236-yDOI Listing
December 2018

Closed-loop vasopressor control: in-silico study of robustness against pharmacodynamic variability.

J Clin Monit Comput 2018 Dec 11. Epub 2018 Dec 11.

Department of Anesthesiology and Perioperative Medicine, Davide Geffen School of Medicine, University of California Los Angeles UCLA, Los Angeles, CA, USA.

Initial feasibility of a novel closed-loop controller created by our group for closed-loop control of vasopressor infusions has been previously described. In clinical practice, vasopressor potency may be affected by a variety of factors including other pharmacologic agents, organ dysfunction, and vasoplegic states. The purpose of this study was therefore to evaluate the effectiveness of our controller in the face of large variations in drug potency, where 'effective' was defined as convergence on target pressure over time. Read More

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http://dx.doi.org/10.1007/s10877-018-0234-0DOI Listing
December 2018

A retrospective evaluation of the risk of bias in perioperative temperature metrics.

J Clin Monit Comput 2018 Dec 8. Epub 2018 Dec 8.

Department of Anesthesiology, Vanderbilt University Medical Center, 1211 21st Avenue South, MAB 422F, Nashville, TN, 37212, USA.

The prevention and treatment of hypothermia is an important part of routine anesthesia care. Avoidance of perioperative hypothermia was introduced as a quality metric in 2010. We sought to assess the integrity of the perioperative hypothermia metric in routine care at a single large center. Read More

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http://link.springer.com/10.1007/s10877-018-0233-1
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http://dx.doi.org/10.1007/s10877-018-0233-1DOI Listing
December 2018
7 Reads

Oxygen reserve index (ORi™) contributes to prediction of hypoxemia and patient safety during tracheal stent insertion using rigid bronchoscopy: a case report.

J Clin Monit Comput 2018 Dec 5. Epub 2018 Dec 5.

Department of Anesthesiology and Critical Care Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-Shi, Tochigi-Ken, 329-0498, Japan.

The oxygen reserve index (ORi™) is a new noninvasive and continuous variable, which represents a moderate hyperoxygenation status, with a unitless scale between 0.00 and 1.00. Read More

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http://dx.doi.org/10.1007/s10877-018-0232-2DOI Listing
December 2018
1 Read

Mindray 3-directional NMT Module (a new generation "Tri-axial" neuromuscular monitor) versus the Relaxometer mechanomyograph and versus the TOF-Watch SX acceleromyograph.

J Clin Monit Comput 2018 Dec 5. Epub 2018 Dec 5.

Laboratory of Pharmacometrics, Centre for Drug Clinical Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China.

Recently introduced Mindray "3-directional" neuromuscular transmission transducer (NMT, Shenzhen, China) acceleromyograph) claim to monitor thumb movement in 3 different directions. We compared NMT with the gold standard Relaxometer® mechanomyograph (MMG, Groningen University, Netherlands) in Study-1 and with TOF-Watch SX™ (WTCH) acceleromyograph from which it was developed in Study-2. We used first twitch (T%) and train-of-four (TOF) ratio rocuronium 0. Read More

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http://dx.doi.org/10.1007/s10877-018-0231-3DOI Listing
December 2018
4 Reads
1.448 Impact Factor

Patient intermittent epidural boluses (PIEB) plus very low continuous epidural infusion (CEI) versus patient-controlled epidural analgesia (PCEA) plus continuous epidural infusion (CEI) in primiparous labour: a randomized trial.

J Clin Monit Comput 2018 Nov 30. Epub 2018 Nov 30.

Department of Anesthesia and Surgical Critical Care, Hospital Universitario Rio Hortega (HURH), C/Dulzaina 2, 47012, Valladolid, Spain.

Epidural maintenance technique for labour analgesia updates constantly. Thanks to infusion pumps, the recently developed programmed intermittent epidural bolus (PIEB) may reduce the use of anesthetic drugs and minimize unintended consequences such as cardio or neurotoxicity. Nevertheless, it is not yet a general practice. Read More

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http://dx.doi.org/10.1007/s10877-018-0229-xDOI Listing
November 2018
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Identification of return of spontaneous circulation during cardiopulmonary resuscitation via pulse oximetry in a porcine animal cardiac arrest model.

J Clin Monit Comput 2018 Nov 29. Epub 2018 Nov 29.

Emergency Department, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan Wangfujing, Dongcheng District, Beijing, China.

In this prospective study we investigated whether the pulse oximetry plethysmographic waveform (POP) could be used to identify return of spontaneous circulation (ROSC) during cardio-pulmonary resuscitation (CPR). Tweleve pigs (28 ± 2 kg) were randomly assigned to two groups: Group I (non-arrested with compressions) (n = 6); Group II (arrested with CPR and defibrillation) (n = 6). Hemodynamic parameters and POP were collected and analyzed. Read More

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http://dx.doi.org/10.1007/s10877-018-0230-4DOI Listing
November 2018
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Phenylephrine-induced recruitable preload from the venous side.

J Clin Monit Comput 2018 Nov 26. Epub 2018 Nov 26.

Intensive Care Department, University Hospital Brussels (UZB), Laarbeeklaan 101, 1090, Jette, Belgium.

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http://dx.doi.org/10.1007/s10877-018-0225-1DOI Listing
November 2018

Acoustic respiration rate and pulse oximetry-derived respiration rate: a clinical comparison study.

J Clin Monit Comput 2018 Nov 26. Epub 2018 Nov 26.

Medtronic, 7 HaMarpe st, 97774, Jerusalem, Israel.

Respiration rate (RR) is a critical vital sign that provides early detection of respiratory compromise. The acoustic technique of measuring continuous respiration rate (RR) interprets the large airway sound envelope to calculate respiratory rate while pulse oximetry-derived respiratory rate (RR) interprets modulations of the photoplethsymograph in response to hemodynamic changes during the respiratory cycle. The aim of this study was to compare the performance of these technologies to each other and to a capnography-based reference device. Read More

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http://dx.doi.org/10.1007/s10877-018-0222-4DOI Listing
November 2018
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The focus of temperature monitoring with zero-heat-flux technology (3M Bair-Hugger): a clinical study with patients undergoing craniotomy.

J Clin Monit Comput 2018 Nov 22. Epub 2018 Nov 22.

Division of Anesthesiology, Department of Anesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.

In the noninvasive zero-heat-flux (ZHF) method, deep body temperature is brought to the skin surface when an insulated temperature probe with servo-controlled heating on the skin creates a region of ZHF from the core to the skin. The sensor of the commercial Bair-Hugger ZHF device is placed on the forehead. According to the manufacturer, the sensor reaches a depth of 1-2 cm below the skin. Read More

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http://dx.doi.org/10.1007/s10877-018-0227-zDOI Listing
November 2018
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1.448 Impact Factor

The use of end-tidal argon to detect venous air embolism: foiled by "fake oxygen!"

J Clin Monit Comput 2018 Nov 22. Epub 2018 Nov 22.

Stanford University School of Medicine, Palo Alto, CA, USA.

Venous air-embolism (VAE) potentially catastrophic complication surgery. Based on previous data using changes in end-tidal nitrogen as an indicator of VAE, we surmised that changes in end-tidal argon (EtAr) may be an indicator of VAE. We sought to determine if a commercial mass-spectrometer (PCT Proline Analyzer 61700-8 Class 85, Ametek, Pittsburgh, PA 15238) could be used to detect changes in EtAr in an invitro model. Read More

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http://dx.doi.org/10.1007/s10877-018-0223-3DOI Listing
November 2018
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Can ultrasonographic measurement of carotid intima-media thickness predict hypotension after induction of general anesthesia?

J Clin Monit Comput 2018 Nov 21. Epub 2018 Nov 21.

Department of Anesthesiology, Diyarbakır State Hospital, 21100, Diyarbakir, Turkey.

Hypotension in patients under general anesthesia is prevalent and causes unfavorable outcomes. Carotid intima-media thickness (CIMT) is a surrogate marker for atherosclerosis and useful for evaluating the risk of cardiovascular diseases. We investigated the usefulness of preoperative CIMT measurement as a predictor of post-induction hypotension (PIH). Read More

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http://dx.doi.org/10.1007/s10877-018-0228-yDOI Listing
November 2018

Laser speckle contrast imaging for quantitative assessment of facial flushing during mesenteric traction syndrome in upper gastrointestinal surgery.

J Clin Monit Comput 2018 Nov 20. Epub 2018 Nov 20.

Department of Surgical Gastroenterology, Rigshospitalet, Copenhagen University Hospital, Inge Lehmanns Vej 7, 2100, Copenhagen Ø, Denmark.

The mesenteric traction syndrome (MTS) is associated with prostacyclin (PGI) facilitated systemic vasodilatation during surgery and is identified by facial flushing. We hypothesized that severe facial flushing would be related to the highest concentrations of plasma PGI and accordingly to the highest levels of skin blood flow measured by laser speckle contrast imaging (LSCI). Patients scheduled for major upper abdominal surgery were consecutively included. Read More

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http://dx.doi.org/10.1007/s10877-018-0226-0DOI Listing
November 2018
8 Reads