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https://www.readbyqxmd.com/read/29913284/effect-sizes-of-bold-cvr-resting-state-signal-fluctuations-and-time-delay-measures-for-the-assessment-of-hemodynamic-impairment-in-carotid-occlusion-patients
#1
Jill B De Vis, Alex A Bhogal, Jeroen Hendrikse, Esben T Petersen, Jeroen C W Siero
BACKGROUND AND PURPOSE: The BOLD signal amplitude as a response to a hypercapnia stimulus is commonly used to assess cerebrovascular reserve. Despite recent advances, the implementation remains cumbersome and alternative ways to assess hemodynamic impairment are desirable. Resting-state BOLD signal fluctuations (rsBOLD) have been proposed however data on its sensitivity and dependence on baseline venous cerebral blood volume (vCBV) is limited. The primary aim of this study was to compare the effect sizes of resting-state and hypercapnia induced BOLD signal changes in the detection of hemodynamic impairment...
June 15, 2018: NeuroImage
https://www.readbyqxmd.com/read/29904652/data-supporting-the-use-of-end-tidal-carbon-dioxide-etco2-measurement-to-guide-management-of-cardiac-arrest-a-systematic-review
#2
Edison F Paiva, James H Paxton, Brian J O'Neil
The data presented in this article are related to the research article, "The Use of End-Tidal Carbon Dioxide (ETCO2 ) Measurement to Guide Management of Cardiac Arrest: A Systematic Review" [1]. This article is a systematic review and meta-analysis of existing data on the subject of whether any level of end-tidal carbon dioxide (ETCO2 ) measured during cardiopulmonary resuscitation (CPR) correlates with return of spontaneous circulation (ROSC) or survival in adult patients experiencing cardiac arrest in any setting...
June 2018: Data in Brief
https://www.readbyqxmd.com/read/29787413/halving-the-volume-of-anaconda-evaluation-of-a-new-small-volume-anesthetic-reflector-in-a-test-lung-model
#3
Hagen Bomberg, Franziska Meiser, Philipp Daume, Martin Bellgardt, Thomas Volk, Daniel I Sessler, Heinrich V Groesdonk, Andreas Meiser
BACKGROUND: Volatile anesthetics are increasingly used for sedation in intensive care units. The most common administration system is AnaConDa-100 mL (ACD-100; Sedana Medical, Uppsala, Sweden), which reflects volatile anesthetics in open ventilation circuits. AnaConDa-50 mL (ACD-50) is a new device with half the volumetric dead space. Carbon dioxide (CO2) can be retained with both devices. We therefore compared the CO2 elimination and isoflurane reflection efficiency of both devices. METHODS: A test lung constantly insufflated with CO2 was ventilated with a tidal volume of 500 mL at 10 breaths/min...
May 21, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29769232/end-tidal-carbon-dioxide-output-in-manual-cardiopulmonary-resuscitation-versus-active-compression-decompression-device-during-prehospital-quality-controlled-resuscitation-a-case-series-study
#4
Piritta Anniina Setälä, Ilkka Tapani Virkkunen, Antti Jaakko Kämäräinen, Heini Sisko Annamari Huhtala, Janne Severi Virta, Arvi Mikael Yli-Hankala, Sanna Elisa Hoppu
BACKGROUND: Active compression-decompression (ACD) devices have enhanced end-tidal carbon dioxide (ETCO2 ) output in experimental cardiopulmonary resuscitation (CPR) studies. However, the results in out-of-hospital cardiac arrest (OHCA) patients have shown inconsistent outcomes, and earlier studies lacked quality control of CPR attempts. We compared manual CPR with ACD-CPR by measuring ETCO2 output using an audiovisual feedback defibrillator to ensure continuous high quality resuscitation attempts...
May 16, 2018: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/29760838/comparing-quick-sequential-organ-failure-assessment-scores-to-end-tidal-carbon-dioxide-as-mortality-predictors-in-prehospital-patients-with-suspected-sepsis
#5
Christopher L Hunter, Salvatore Silvestri, George Ralls, Amanda Stone, Ayanna Walker, Neal Mangalat, Linda Papa
Introduction: Early identification of sepsis significantly improves outcomes, suggesting a role for prehospital screening. An end-tidal carbon dioxide (ETCO2 ) value ≤ 25 mmHg predicts mortality and severe sepsis when used as part of a prehospital screening tool. Recently, the Quick Sequential Organ Failure Assessment (qSOFA) score was also derived as a tool for predicting poor outcomes in potentially septic patients. Methods: We conducted a retrospective cohort study among patients transported by emergency medical services to compare the use of ETCO2 ≤ 25 mmHg with qSOFA score of ≥ 2 as a predictor of mortality or diagnosis of severe sepsis in prehospital patients with suspected sepsis...
May 2018: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29744251/comparison-of-different-cuff-pressure-use-with-the-supreme-laryngeal-mask-airway-on-haemodynamic-response-seal-pressure-and-postoperative-adverse-events-a-prospective-randomized-study
#6
Achmet Ali, Demet Altun, Nukhet Sivrikoz, Mesut Yornuk, Namigar Turgut, İbrahim Özkan Akıncı
Objective: The Supreme™ laryngeal mask airway (SLMA) is a supra glottic airway (SGA) device that is used as an alternative to endotracheal tubes. In the present study, we aimed to compare the use of the SLMA with normal cuff pressure and low cuff pressure, primarily for haemodynamic response. Methods: In the present study, 120 patients diagnosed with hypertension and scheduled for varicose vein or inguinal hernia operation were enrolled and 99 patients finished...
April 2018: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/29729130/co2-retention-the-key-to-stopping-hiccups
#7
Toshiro Obuchi, Satoshi Shimamura, Naofumi Miyahara, Naoyuki Fujimura, Akinori Iwasaki
BACKGROUND: While investigating the mechanisms behind hiccups, our team discovered what could be the sufficient physiological conditions for terminating even persistent cases. METHODS: To investigate the role of CO2 retention, a healthy male volunteer was asked to perform 3 kinds of rebreathing experiments using different materials: (I) a 20L air-filled plastic bag, (II) a 20L air-filled plastic bag with a 1.5 × 1.5 cm hole, and (III) a 20L oxygen-filled plastic bag...
May 5, 2018: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29720756/anaesthesia-for-laparoscopic-nephrectomy-does-end-tidal-carbon-dioxide-measurement-correlate-with-arterial-carbon-dioxide-measurement
#8
Nithin Jayan, Jaya Susan Jacob, Mohan Mathew
Background and Aims: Not many studies have explored the correlation between arterial carbon dioxide tension (PaCO2 ) and end-tidal carbon dioxide tension (ETCO2 ) in surgeries requiring pneumoperitoneum of more than 1 hour duration with the patient in non-supine position. The aim of our study was to evaluate the correlation of ETCO2 with PaCO2 in patients undergoing laparoscopic nephrectomy under general anaesthesia. Methods: A descriptive study was performed in thirty patients undergoing laparoscopic nephrectomy from September 2014 to August 2015...
April 2018: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/29685358/the-gradient-between-arterial-and-end-tidal-carbon-dioxide-predicts-in-hospital-mortality-in-post-cardiac-arrest-patient
#9
Yong Won Kim, Sung Oh Hwang, Hee Seung Kang, Kyoung-Chul Cha
PURPOSE: We investigated the predictive value of the gradient between arterial carbon dioxide (PaCO2 ) and end-tidal carbon dioxide (ETCO2 ) (Pa-ETCO2 ) in post-cardiac arrest patients for in-hospital mortality. METHODS: This retrospective observational study evaluated cardiac arrest patients admitted to the emergency department of a tertiary university hospital. The PaCO2 and ETCO2 values at 6, 12, and 24 h after return of spontaneous circulation (ROSC) were obtained from medical records and Pa-ETCO2 gap was calculated as the difference between PaCO2 and ETCO2 at each time point...
April 14, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29680425/prevalence-and-characteristics-of-sleep-disordered-breathing-in-familial-dysautonomia
#10
Kanwaljit Singh, Jose-Alberto Palma, Horacio Kaufmann, Nataliya Tkachenko, Lucy Norcliffe-Kaufmann, Christy Spalink, Mikhail Kazachkov, Sanjeev V Kothare
OBJECTIVE: Familial dysautonomia (FD) is an autosomal recessive disorder characterized by impaired development of sensory and afferent autonomic nerves. Untreated sleep-disordered breathing (SDB) has been reported to increase the risk of sudden unexpected death in FD. We aimed to describe the prevalence and characteristics of SDB in FD. PATIENTS/METHODS: Seventy-five patients with FD (20 adults and 55 children) underwent in-lab polysomnography, including peripheral capillary oxygen saturation (SpO2 ) and end-tidal capnography (EtCO2 ) measurements...
May 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29680394/the-clinical-effects-of-a-low-dose-dexmedetomidine-constant-rate-infusion-in-isoflurane-anesthetized-cats
#11
B T Simon, E M Scallan, C D Coursey, W M Kiehl, E J Moore
The aim of this study was to evaluate the effects of a low dose dexmedetomidine constant rate infusion (CRI) on cardiopulmonary function, inhalant anesthetic concentration and recovery in isoflurane anesthetized cats. In a prospective, randomized, blinded, controlled design, 12 cats undergoing anesthesia for ovariohysterectomy were administered hydromorphone (0.1mg/kg) intramuscularly, propofol (4.3-7.8mg/kg) intravenously and maintained with isoflurane. During isoflurane anesthesia, the cats were administered either a dexmedetomidine loading dose (0...
April 2018: Veterinary Journal
https://www.readbyqxmd.com/read/29649316/effect-of-one-lung-ventilation-on-end-tidal-carbon-dioxide-during-cardiopulmonary-resuscitation-in-a-pig-model-of-cardiac-arrest
#12
Dong Hyun Ryu, Yong Hun Jung, Kyung Woon Jeung, Byung Kook Lee, Young Won Jeong, Jong Geun Yun, Dong Hun Lee, Sung Min Lee, Tag Heo, Yong Il Min
Unrecognized endobronchial intubation frequently occurs after emergency intubation. However, no study has evaluated the effect of one-lung ventilation on end-tidal carbon dioxide (ETCO2) during cardiopulmonary resuscitation (CPR). We compared the hemodynamic parameters, blood gases, and ETCO2 during one-lung ventilation with those during conventional two-lung ventilation in a pig model of CPR, to determine the effect of the former on ETCO2. A randomized crossover study was conducted in 12 pigs intubated with double-lumen endobronchial tube to achieve lung separation...
2018: PloS One
https://www.readbyqxmd.com/read/29629058/effect-of-propofol-and-isoflurane-on-gas-exchange-parameters-following-one-lung-ventilation-in-thoracic-surgery-a-double-blinded-randomized-controlled-clinical-trial
#13
Shima Sheybani, Alireza Sharifian Attar, Sogol Golshan, Shadi Sheibani, Majid Rajabian
Background: The use of anesthetic drugs with minimal inhibitory effects on the hypoxic pulmonary vasoconstriction (HPV) could have a decisive role in preventing the hypoxemia during one-lung ventilation (OLV). Objective: The aim of this study was to compare the effects of propofol and isoflurane on the changes in gas exchange parameters following OLV in thoracic surgery. Methods: This double-blinded randomized controlled clinical trial was conducted on patients who were candidates for elective right thoracotomy referred to the central operating room of Ghaem Hospital in Mashhad, Iran, during February 2016-2017...
February 2018: Electronic Physician
https://www.readbyqxmd.com/read/29628575/hemodynamic-airway-pressure-and-capnometric-changes-and-perioperative-outcome-in-pediatric-laparoscopic-inguinal-herniorrhaphy-a-comparison-with-open-inguinal-herniorrhaphy
#14
Jyoti Garg, Suniti Kale, Nikki Sabharwal, Deepak Bagga, Anoop Raj Gogia
Background: Laparoscopic procedures which are now established in pediatric population as well exposes the child to supplemental cardiorespiratory changes due to increase in intraabdominal pressure (IAP) and hypercarbia. Aims: This study aims to analyze the effects of pneumoperitoneum and postural modifications on cardiorespiratory system (primary outcome) during pediatric laparoscopic herniorrhaphy (LH) and its comparison with open herniorrhaphy (OH) and assessment of overall perioperative outcome (secondary outcome)...
January 2018: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29628573/does-restrictive-fluid-strategy-during-robotic-pelvic-surgeries-obtund-intraoperative-rise-in-intraocular-pressure
#15
Pulak Tosh, Saritha Valsala Krishnankutty, Sunil Rajan, Hema Muraleedharan Nair, Nitu Puthanveettil, Lakshmi Kumar
Background: Robotic pelvic surgeries require steep Trendelenburg position which may result in rise in intraocular pressure (IOP). Aim: The aim of this study was to compare the changes that occur in IOP during robotic pelvic surgeries in steep Trendelenburg position with a restrictive intravenous fluid administration. Settings and Design: This prospective observational study was conducted in a tertiary care institution. Subjects and Methods: Twenty consenting patients scheduled for pelvic robotic gynecological surgeries were enrolled...
January 2018: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29626267/different-ventilation-techniques-and-hemodynamic-optimization-to-maintain-regional-cerebral-oxygen-saturation-rsco-2-during-laparoscopic-bariatric-surgery-a-prospective-randomized-interventional-study
#16
Osama M Asaad
PURPOSE: The purpose of this study was to assess the changes in regional cerebral oxygen saturation (rScO2 ) in response to different ventilation strategies: inspired oxygen concentration (FiO2 ), end-tidal carbon dioxide (EtCO2 ), and positive end expiratory pressure (PEEP) in addition to optimizing mean arterial pressure (MAP) in obese patients subjected to laparoscopic bariatric surgery in the reverse trendelenburg position. METHODS: 50 obese patients were randomly assigned into one of two groups...
June 2018: Journal of Anesthesia
https://www.readbyqxmd.com/read/29624011/comparison-of-the-cardiovascular-and-respiratory-effects-and-sevoflurane-requirement-in-dogs-premedicated-with-two-doses-of-medetomidine-and-butorphanol-undergoing-surgical-sterilization
#17
D Juodzente, A Macas, B Karveliene, S Petkevicius, V Riskeviciene
The aim of this study was to compare the cardiovascular and respiratory effects and sevoflurane requirement in dogs premedicated with two doses of medetomidine and butorphanol undergoing surgical sterilization. The dogs were randomly assigned to two different groups: group 1 received a lower dose of medetomidine (0.014 mg/kg) and butorphanol (0.14 mg/kg) and group 2 received a higher dose of medetomidine (0.024 mg/kg) and butorphanol (0.24 mg/kg). Anesthesia was induced with intravenous propofol and maintained with sevoflurane 2% in pure oxygen...
March 2018: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/29619647/assessment-of-cerebral-hemodynamic-parameters-using-pulsatile-versus-non-pulsatile-cerebral-blood-outflow-models
#18
Agnieszka Uryga, Magdalena Kasprowicz, Leanne Calviello, Rolf R Diehl, Katarzyna Kaczmarska, Marek Czosnyka
BACKGROUND: Prior methods evaluating the changes in cerebral arterial blood volume (∆Ca BV) assumed that brain blood transport distal to big cerebral arteries can be approximated with a non-pulsatile flow (CFF) model. In this study, a modified ∆Ca BV calculation that accounts for pulsatile blood flow forward (PFF) from large cerebral arteries to resistive arterioles was investigated. The aim was to assess cerebral hemodynamic indices estimated by both CFF and PFF models while changing arterial blood carbon dioxide concentration (EtCO2 ) in healthy volunteers...
April 4, 2018: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/29605703/variability-in-the-time-to-initiation-of-cpr-in-continuously-monitored-pediatric-icus
#19
M Olson, E Helfenbein, L Su, M Berg, L Knight, L Troy, L Sacks, D Sakai, F Su
AIM: To study the influence of patient characteristics and unit ergonomics and human factors on the time to initiation of CPR. METHODS: A single center study of children, 0 to 21 years old, admitted to an ICU who experienced cardiopulmonary arrest (CPA) requiring >1 min of chest compressions. Time of CPA was determined by analysis of continuous ECG, plethysmography, arterial blood pressure, and end-tidal CO2 (EtCO2 ) waveforms. Initiation of CPR was identified by the onset of cyclic artifact in the ECG waveform...
March 29, 2018: Resuscitation
https://www.readbyqxmd.com/read/29569112/phenylephrine-increases-cardiac-output-by-raising-cardiac-preload-in-patients-with-anesthesia-induced-hypotension
#20
A F Kalmar, S Allaert, P Pletinckx, J-W Maes, J Heerman, J J Vos, M M R F Struys, T W L Scheeren
Induction of general anesthesia frequently induces arterial hypotension, which is often treated with a vasopressor, such as phenylephrine. As a pure α-agonist, phenylephrine is conventionally considered to solely induce arterial vasoconstriction and thus increase cardiac afterload but not cardiac preload. In specific circumstances, however, phenylephrine may also contribute to an increase in venous return and thus cardiac output (CO). The aim of this study is to describe the initial time course of the effects of phenylephrine on various hemodynamic variables and to evaluate the ability of advanced hemodynamic monitoring to quantify these changes through different hemodynamic variables...
March 22, 2018: Journal of Clinical Monitoring and Computing
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