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Journal of Clinical Monitoring and Computing

Mårten Unnerbäck, Eric L Bloomfield, Sven Söderström, Peter Reinstrup
Current methods to measure cerebral blood flow (CBF) in the neuro critical care setting cannot monitor the CBF continuously. In contrast, continuous measurement of intracranial pressure (ICP) is readily accomplished, and there is a component of ICP that correlates with arterial inflow of blood into the cranial cavity. This property may have utility in using continuous ICP curve analysis to continuously estimate CBF. We examined the data from 13 patients, monitored with an intraventricular ICP device determining the pulsatile amplitude ICPamp as well as the area under the ICP curve (AUCICP )...
March 16, 2018: Journal of Clinical Monitoring and Computing
Takeaki Shinjo, Hironobu Hayashi, Tsunenori Takatani, Eishu Boku, Hiroyuki Nakase, Masahiko Kawaguchi
Bulbocavernosus reflex (BCR) monitoring is used to assess the integrity of urinary and bowel function. In this study, we evaluated the feasibility of BCR monitoring during untethering surgery in infants and children to predict postoperative urinary and bowel dysfunction. The records of 22 patients ranging from 4 days to 10 years old (mean 2.7 ± 3.3 years) were reviewed. Anesthesia was maintained by propofol or sevoflurane/opioid without neuromuscular blockade. BCR waveforms induced by electrical stimulation (20-40 mA, train-of-four pulses with 500 Hz) to the penis or clitoris were recorded from bilateral external anal sphincters...
March 8, 2018: Journal of Clinical Monitoring and Computing
Tammo A Brouwer, Charina van den Boogaard, Eric N van Roon, Cor J Kalkman, Nic Veeger
Ultrasound scanning of bladder volume is used for prevention of postoperative urinary retention (POUR). Accurate assessment of bladder volume is needed to allow clinical decision-making regarding the need for postoperative catheterization. Two commonly used ultrasound devices, the BladderScan® BVI 9400 and the newly released Prime® (Verathon Medical®, Bothell, WA, USA), with or without the 'pre-scan' option, have not been validated in clinical practice. The aim of this study was to assess the performance of these devices in daily clinical practice...
March 7, 2018: Journal of Clinical Monitoring and Computing
Patrick C Bonasso, Melvin S Dassinger, Morten O Jensen, Samuel D Smith, Jeffrey M Burford, Kevin W Sexton
The purpose of this technological notes paper is to describe our institution's experience collecting peripheral venous pressure (PVP) waveforms using a standard peripheral intravenous catheter in an awake pediatric patient. PVP waveforms were collected from patients with hypertrophic pyloric stenosis. PVP measurements were obtained prospectively at two time points during the hospitalization: admission to emergency department and after bolus in emergency department. Data was collected from thirty-two patients...
March 6, 2018: Journal of Clinical Monitoring and Computing
Takashi Juri, Koichi Suehiro, Aya Kimura, Akira Mukai, Katsuaki Tanaka, Tokuhiro Yamada, Takashi Mori, Kiyonobu Nishikawa
This study assessed the ability of a continuous non-invasive blood pressure (BP) monitoring system to reduce intra-anesthetic hemodynamic fluctuation compared with intermittent BP cuff measurement. Forty patients undergoing total knee arthroplasty under general anesthesia were enrolled and randomly divided into two groups (Control and CS group). BP management was performed using the same protocol with BP measured by intermittent BP cuff in the Control and that by continuous non-invasive BP monitoring in the CS group...
March 6, 2018: Journal of Clinical Monitoring and Computing
Mari Yamashita-Ichimura, Emiko Toyama, Makoto Sasoh, Hironari Shiwaku, Kanefumi Yamashita, Yuichi Yamashita, Ken Yamaura
Per-oral endoscopic myotomy (POEM) is a minimally invasive treatment for esophageal achalasia. However, POEM has the potential risk of inducing carbon dioxide (CO2 ) gas-related adverse events, such as pneumoperitoneum, pneumomediastinum, and pneumothorax. The aim of this study was to evaluate the usability of bladder pressure monitoring as an index of CO2 gas-related pneumoperitoneum. The monitoring of bladder pressure and lung compliance and the incidence of iatrogenic pneumoperitoneum were retrospectively studied in 20 patients who underwent POEM between June 2013 and March 2015...
February 27, 2018: Journal of Clinical Monitoring and Computing
Ajay Prasad Hrishi, Karen Ruby Lionel, Unnikrishnan Prathapadas, Anju Das Thulasi Das
Distinguishing a monitoring artifact requires expertise and adeptness. This can be practically challenging during the course of an anesthetic. We report a case, wherein we experienced episodes of aberrant pulse-oximeter values suggestive of desaturation with normal waveforms, occurring during a particular sequence of magnetic resonance imaging (MRI) performed under general anesthesia, which in fact was an artifact induced by the 3 T MRI during the diffusion tensor imaging sequence.
February 27, 2018: Journal of Clinical Monitoring and Computing
Bernd Saugel, Karim Bendjelid, Lester A H Critchley, Thomas W L Scheeren
Hemodynamic monitoring provides the basis for the optimization of cardiovascular dynamics in intensive care medicine and anesthesiology. The Journal of Clinical Monitoring and Computing (JCMC) is an ideal platform to publish research related to hemodynamic monitoring technologies, cardiovascular (patho)physiology, and hemodynamic treatment strategies. In this review, we discuss selected papers published on cardiovascular and hemodynamic monitoring in the JCMC in 2017.
February 26, 2018: Journal of Clinical Monitoring and Computing
Shadnaz Asgari, Hana Moshirvaziri, Fabien Scalzo, Nima Ramezan-Arab
Cardiac arrest (CA) is the leading cause of death and disability in the United States. Early and accurate prediction of CA outcome can help clinicians and families to make a better-informed decision for the patient's healthcare. Studies have shown that electroencephalography (EEG) may assist in early prognosis of CA outcome. However, visual EEG interpretation is subjective, labor-intensive, and requires interpretation by a medical expert, i.e., neurophysiologists. These limiting factors may hinder the applicability of such testing as the prognostic method in clinical settings...
February 26, 2018: Journal of Clinical Monitoring and Computing
D S Karbing, G Perchiazzi, S E Rees, M B Jaffe
This paper reviews 32 papers or commentaries published in Journal of Clinical Monitoring and Computing in 2016, within the field of respiration. Papers were published covering airway management, ventilation and respiratory rate monitoring, lung mechanics and gas exchange monitoring, in vitro monitoring of lung mechanics, CO2 monitoring, and respiratory and metabolic monitoring techniques.
February 26, 2018: Journal of Clinical Monitoring and Computing
Jan F A Hendrickx, Andre M De Wolf, Stanley Skinner
No abstract text is available yet for this article.
February 24, 2018: Journal of Clinical Monitoring and Computing
Nicholas West, Paul B McBeth, Sonia M Brodie, Klaske van Heusden, Sarah Sunderland, Guy A Dumont, Donald E G Griesdale, J Mark Ansermino, Matthias Görges
Sedation in the intensive care unit (ICU) is challenging, as both over- and under-sedation are detrimental. Current methods of assessment, such as the Richmond Agitation Sedation Scale (RASS), are measured intermittently and rely on patients' behavioral response to stimulation, which may interrupt sleep/rest. A non-stimulating method for continuous sedation monitoring may be beneficial and allow more frequent assessment. Processed electroencephalography (EEG) monitors have not been routinely adopted in the ICU...
February 20, 2018: Journal of Clinical Monitoring and Computing
Kwon Hui Seo, Yong-Shin Kim, Jindeok Joo, Jin-Woo Choi, Hong-Soo Jeong, Si-Wook Chung
Laparoscopic surgery is often prolonged and requires positional changes to facilitate surgical access. Previous studies reported intraocular pressure (IOP) changes in one fixed position. This study investigated the effect of desflurane and propofol anesthesia on IOP during repeated positional changes. A total of 46 patients undergoing laparoscopic colorectal surgery were randomized into desflurane or propofol groups. IOP was measured using a handheld tonometer at seven time points: before induction (baseline), after endotracheal intubation, after pneumoperitoneum, after the first Trendelenburg and right tilt position, after reverse Trendelenburg and right tilt position, after the second Trendelenburg and right tilt position and before endotracheal extubation...
February 19, 2018: Journal of Clinical Monitoring and Computing
Zeping Xu, Lingyan Jin, Byron Smith, Yiping Bai, Haoxiang Luo, Lars Axel Strombergsson, Min Fei, Yandong Jiang
Efficient air removal from a vascular access line is a key step to prevent air embolism. Existing devices, especially for rapid infusers, are far from optimum. In this study, we developed a novel device, vascular access line air removal device (VALARD), and compared its efficiency of air removal and pause time of forward bulk flow with a commonly used device, the Belmont pump. Part I experiment, saline was infused at a forward bulk flow rate of 250, 500, and 750 mL/min. Meanwhile, air was introduced into the infusion line at a rate of 5, 10, and 15 mL/min for each bulk flow rate...
February 17, 2018: Journal of Clinical Monitoring and Computing
J Mesquida, P Saludes, A Pérez-Madrigal, L Proença, E Cortes, L Enseñat, C Espinal, G Gruartmoner
Central venous-to-arterial carbon dioxide difference (Pcva CO2 ), and its correction by the arterial-to-venous oxygen content difference (Pcva CO2 /Cav O2 ) have been proposed as additional tools to evaluate tissue hypoxia. Since the relationship between pressure and content of CO2 (CCO2 ) might be affected by several factors, some authors advocate for the use of Ccva CO2 /Cav O2 . The aim of the present study was to explore the factors that might intervene in the difference between Pcva CO2 /Cav O2 and Ccva CO2 /Cav O2 , and to analyze their association with mortality...
February 17, 2018: Journal of Clinical Monitoring and Computing
T W L Scheeren, F J Belda, A Perel
In the original publication of the article, the authors have realized an error in Fig. 1. The corrected version of Fig. 1 is given below.
February 14, 2018: Journal of Clinical Monitoring and Computing
José A Sastre, T López, Leyre Reta
No abstract text is available yet for this article.
February 14, 2018: Journal of Clinical Monitoring and Computing
Philip J Peyton, Monique Kozub
Technologies for minimally-invasive cardiac output measurement in patients during surgery remain little used in routine practice. We tested a redeveloped system based on CO 2 elimination (VCO 2 ) by the lungs for use in ventilated patients, which can be seamlessly integrated into a modern anesthesia/monitoring platform, and provides automated, continuous breath-by-breath cardiac output monitoring. A prototype measurement system was constructed to measure VCO 2 and end-tidal CO 2 concentration with each breath...
February 8, 2018: Journal of Clinical Monitoring and Computing
C G Clemmesen, L M Pedersen, S Hougaard, M L Andersson, V Rosenkvist, H B Nielsen, H Palm, N B Foss
This study explores the association between postadmission and intraoperative cerebral oxygenation (ScO2), reflecting systemic perfusion, and postoperative mortality and delirium. Forty elderly (age > 65 years) patients with hip fractures were included in this prospective observational study. The ScO2 was determined using near-infrared spectroscopy at initial resuscitation after patients were admitted to the hospital and during surgery. Postoperative delirium was assessed up to seven days after surgery using the memorial delirium assessment scale and the confusion assessment method...
February 5, 2018: Journal of Clinical Monitoring and Computing
Marc-Olivier Fischer, Corentin Gouëzel, Sabine Fradin, Vladimir Saplacan, Jean-Louis Gérard, Jean-Luc Fellahi, Jean-Luc Hanouz
Blood glucose and its variability of is a major prognostic factor associated with morbidity. We hypothesized that intravenous microdialysis incorporated in a central venous catheter (CVC) would be interchangeable with changes in blood glucose measured by the reference method using a blood gas analyzer. Microdialysis and central venous blood glucose measurements were simultaneously recorded in high-risk cardiac surgical patients. The correlation between absolute values was determined by linear regression and the Bland-Altman test for repeated measurements was used to compare bias, precision, and limits of agreement...
February 5, 2018: Journal of Clinical Monitoring and Computing
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