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https://www.readbyqxmd.com/read/27396945/isocapnic-hyperventilation-shortens-washout-time-for-sevoflurane-an-experimental-in-vivo-study
#1
K Hallén, O Stenqvist, S-E Ricksten, S Lindgren
BACKGROUND: Isocapnic hyperventilation (IHV) is a method that fastens weaning from inhalation anaesthesia by increasing airway concentration of carbon dioxide (CO2 ) during hyperventilation (HV). In an animal model, we evaluated a technique of adding CO2 directly to the breathing circuit of a standard anaesthesia apparatus. METHODS: Eight anaesthetised pigs weighing 28 ± 2 kg were intubated and mechanically ventilated. From a baseline ventilation of 5 l/min, HV was achieved by doubling minute volume and fresh gas flow...
October 2016: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/26688296/a-simple-method-for-isocapnic-hyperventilation-evaluated-in-a-lung-model
#2
K Hallén, O Stenqvist, S-E Ricksten, S Lindgren
BACKGROUND: Isocapnic hyperventilation (IHV) has the potential to increase the elimination rate of anaesthetic gases and has been shown to shorten time to wake-up and post-operative recovery time after inhalation anaesthesia. In this bench test, we describe a technique to achieve isocapnia during hyperventilation (HV) by adding carbon dioxide (CO2) directly to the breathing circuit of a standard anaesthesia apparatus with standard monitoring equipment. METHODS: Into a mechanical lung model, carbon dioxide was added to simulate a CO2 production (V(CO2)) of 175, 200 and 225 ml/min...
May 2016: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/26596134/a-preceptorship-model-for-health-visiting
#3
Elaine McInnes
Many new qualified health visitors may find the transition from being a student to an accountable individual practitioner a daunting prospect. Although competent and knowledgeable, they may feel the need for support and guidance of more experienced professional colleagues as they find their feet in professional practice. The same may apply to those who have returned to practice after a break of five years or more. It may also apply to those who move registerable qualification, for example a registered nurse who subsequently qualifies as a health visitor...
October 2015: Community Practitioner: the Journal of the Community Practitioners' & Health Visitors' Association
https://www.readbyqxmd.com/read/25831703/-efficiency-of-high-volume-hemofiltration-in-patients-with-severe-sepsis-and-intracranial-hypertension
#4
T S Musaeva, A P Berdnikov, S I Goncharenko, E A Denisova
We performed a retrospective study in 68 patients (144 procedures) with severe sepsis and intracranial hypertension measured by the pressure in the central retinal vein. The patients underwent high-volume hemofiltration (HV-HF) for extrarenal indications. Increased pressure in the central retinal vein was accompanied by critical points of cerebral perfusion pressure and the growth of neurological deficit with inhibition level of consciousness to coma 1. In this case, IHV-HF may be associated with the formation of the critical points of cerebral perfihsion and severe disorders of microcirculation and the lack of resolution of tissue hypoperfusion...
November 2014: Anesteziologiia i Reanimatologiia
https://www.readbyqxmd.com/read/25635887/bleeding-and-infection-with-external-ventricular-drainage-a-systematic-review-in-comparison-with-adjudicated-adverse-events-in-the-ongoing-clot-lysis-evaluating-accelerated-resolution-of-intraventricular-hemorrhage-phase-iii-clear-iii-ihv-trial
#5
RANDOMIZED CONTROLLED TRIAL
Mahua Dey, Agnieszka Stadnik, Fady Riad, Lingjiao Zhang, Nichol McBee, Carlos Kase, J Ricardo Carhuapoma, Malathi Ram, Karen Lane, Noeleen Ostapkovich, Francois Aldrich, Charlene Aldrich, Jack Jallo, Ken Butcher, Ryan Snider, Daniel Hanley, Wendy Ziai, Issam A Awad
BACKGROUND: Retrospective series report varied rates of bleeding and infection with external ventricular drainage (EVD). There have been no prospective studies of these risks with systematic surveillance, threshold definitions, or independent adjudication. OBJECTIVE: To analyze the rate of complications in the ongoing Clot Lysis: Evaluating Accelerated Resolution of Intraventricular Hemorrhage Phase III (CLEAR III) trial, providing a comparison with a systematic review of complications of EVD in the literature...
March 2015: Neurosurgery
https://www.readbyqxmd.com/read/25388741/a-well-deserved-higher-profile
#6
Petra Kendall-Raynor
The Institute of Health Visiting (iHV) fellows programme is sponsored by the Department of Health. It acknowledges 150 health visitors invited to participate in a leadership programme.
November 18, 2014: Nursing Standard
https://www.readbyqxmd.com/read/24756426/assessment-of-the-hepatic-veins-in-poor-contrast-conditions-using-dual-energy-ct-evaluation-of-a-novel-monoenergetic-extrapolation-software-algorithm
#7
C Schabel, M Bongers, M Sedlmair, A Korn, U Grosse, S Mangold, C D Claussen, C Thomas
PURPOSE: To evaluate a novel monoenergetic post-processing algorithm (MEI+) in patients with poor intrahepatic contrast enhancement. MATERIALS AND METHODS: 25 patients were retrospectively included in this study. Late-phase imaging of the upper abdomen, which was acquired in dual-energy mode (100/140 kV), was used as a model for poor intrahepatic contrast enhancement. Traditional monoenergetic images (MEI), linearly weighted mixed images with different mixing ratios (MI), sole 100 and 140 kV and MEI+ images were calculated...
June 2014: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/22086697/drainage-patterns-of-right-and-accessory-hepatic-veins-anatomical-functional-classification-derived-from-3-dimensional-ct-reconstructions
#8
Shahin Minouchehr, Arnold Radtke, Georgios C Sotiropoulos, Ernesto P Molmenti, Felix Braun, Milo Hindennach, Human Honarpisheh, Vito R Cicinnati, Massimo Malagó, Dieter C Broering, Tobias Schroeder
BACKGROUND/AIMS: Inadequate knowledge of the right (RHV) and accessory (IHV) hepatic 'venous drainage' territories can lead to severe postoperative venous congestion after right graft live donor liver transplantation. The purpose of our study was to define the anatomical-functional RHV and IHV drainage territories. METHODOLOGY: One hundred and forty consecutive live liver donor candidates were evaluated by means of 3-D CT reconstructions and 3-D virtual hepatectomies...
September 2011: Hepato-gastroenterology
https://www.readbyqxmd.com/read/21925813/autonomous-adrenocorticotropin-reaction-to-stress-stimuli-in-human-fetus
#9
Katarzyna Kosinska-Kaczynska, Robert Bartkowiak, Bartosz Kaczynski, Iwona Szymusik, Miroslaw Wielgos
The aim of the study was to determine whether human fetuses show ACTH response to stress stimuli, to define the gestational age from which these reactions may be present and to analyze the relationship between hormone concentrations and their changes, both in fetuses and in pregnant women. The study included 81 intrauterine transfusions carried out in 19 pregnant women. 52 procedures were performed directly into the umbilical vein, which is not innervated, so neutral for the fetus (the PCI group) and 29 transfusions into the intrahepatic vein -which puncture is stressful for the fetus (the IHV group)...
April 2012: Early Human Development
https://www.readbyqxmd.com/read/21584816/peritoneal-volume-is-predictive-of-tension-free-fascia-closure-of-large-incisional-hernias-with-loss-of-domain-a-prospective-study
#10
C Sabbagh, F Dumont, B Robert, R Badaoui, P Verhaeghe, J-M Regimbeau
INTRODUCTION: The surgical treatment of large incisional hernias with loss of domain (LIHLD) carries the risk of fascia closure under tension and, thus, abdominal compartment syndrome. We investigated volume measurements as a predictive factor for tension-free fascia closure. PATIENTS AND METHODS: From September 2004 to July 2008, we prospectively included 17 patients with LIHLD. The operation was prepared by a progressive preoperative pneumoperitoneum (PPP) technique known as the Goni Moreno procedure...
October 2011: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/21425181/fetal-stress-hormone-changes-during-intrauterine-transfusions
#11
RANDOMIZED CONTROLLED TRIAL
P N Adama van Scheltema, S A Pasman, R Wolterbeek, J A Deprest, D Oepkes, F De Buck, M Van de Velde, F P H A Vandenbussche
OBJECTIVE: To document fetal stress hormone and Doppler changes after intrauterine transfusions (IUTs) in either the intrahepatic portion of the umbilical vein (IHV) or the placental cord insertion (PCI). METHOD: Pregnant women scheduled for IUT for fetal anemia (N = 25) were included prospectively. Cortisol, β-endorphin and noradrenalin concentrations in fetal plasma and middle cerebral artery pulsatility index before and after transfusion were compared. Transfusions were performed through the (IHV), thus puncturing the fetus, or at the PCI...
June 2011: Prenatal Diagnosis
https://www.readbyqxmd.com/read/21060234/identification-of-ryu-s-segmentation-of-the-liver-using-mdct-analysis
#12
Takahisa Kaneko, Takeshi Tomiyama, Hajime Kiyuna, Tadashi Machida, Hiromitsu Hayashi, Shin-Ichiro Kumita
BACKGROUND: Couinaud's segmentation is widely used for clinical segmentation of the liver. Recently, a new method of liver segmentation was described by Ryu. In this method, the right posterior sector in Couinaud's segmentation is regarded as 1 segment, and the right anterior sector is subdivided into the antero-ventral segment (AVS) and the antero-dorsal segment (ADS), which are demarcated by the anterior fissure vein (AFV). We used data from multi-detector row computed tomography (MDCT) to identify the portal and hepatic veins that are used as anatomical landmarks in both Couinaud's segmentation and Ryu's segmentation...
October 2010: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/20509139/early-intrauterine-transfusion-in-severe-red-blood-cell-alloimmunization
#13
Y Yinon, J Visser, E N Kelly, R Windrim, H Amsalem, P G R Seaward, G Ryan
OBJECTIVE: To determine perinatal outcome in pregnancies with early severe red blood cell (RBC) alloimmunization. METHODS: This was a retrospective analysis of 30 patients requiring their first intrauterine transfusion (IUT) at < 22 weeks of gestation. Timing of the first IUT was based on evaluation of either the middle cerebral artery peak systolic velocity (MCA-PSV) or development of ascites. RESULTS: Thirty-three per cent of the patients had experienced a previous intrauterine fetal death as a result of RBC alloimmunization...
November 2010: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/20410853/hepatic-venous-drainage-how-much-can-we-learn-from-imaging-studies-anatomic-functional-classification-derived-from-three-dimensional-computed-tomography-reconstructions
#14
Arnold Radtke, Georgios C Sotiropoulos, George Sgourakis, Ernesto P Molmenti, Tobias Schroeder, Fuat H Saner, Susanne Beckebaum, Christoph E Broelsch, Dieter C Broering, Massimo Malago
BACKGROUND: The knowledge of "venous dominance" is essential to prevent serious venous congestion in live donor liver transplantation and extended liver resections. AIMS: The purpose of our study was to delineate our proposed anatomic-functional classification of hepatic venous drainage. METHODS: One hundred forty consecutive live liver donor candidates underwent three-dimensional computed tomography reconstructions and three-dimensional virtual hepatectomies...
June 27, 2010: Transplantation
https://www.readbyqxmd.com/read/20217379/patterns-of-brain-activity-in-response-to-respiratory-stimulation-in-patients-with-idiopathic-hyperventilation-ihv
#15
S Jack, G J Kemp, W E Bimson, P M A Calverley, D R Corfield
Dyspnoea, usually defined as an uncomfortable awareness of breathing, is one of the most frequent and distressing symptoms experienced by patients with lung disease. Idiopathic hyperventilation (IHV) has unknown aetiology and little is known about the mechanisms that cause the characteristic sustained hypocapnia and chronic dyspnoea. We have shown in IHV and other chronic respiratory disorders that air hunger is the dominant sensation during exercise, while resting breathlessness is characterised by an affective component...
2010: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/19752525/fetal-brain-hemodynamic-changes-in-intrauterine-transfusion-influence-of-needle-puncture-site
#16
P N Adama van Scheltema, S Borkent, E Sikkel, D Oepkes, F P H A Vandenbussche
OBJECTIVES: Previous research has suggested that hemodynamic changes after in utero transfusion may be related to fetal stress. We tested the hypothesis that these hemodynamic changes are more pronounced when the needle is inserted in the fetal abdomen compared with the umbilical cord root. METHODS: Most intrauterine transfusions are performed by inserting a needle either in the umbilical cord root at the placental surface (PCI) or in the intrahepatic portion of the umbilical vein (IHV)...
2009: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/19461097/building-laboratory-infrastructure-to-support-scale-up-of-hiv-aids-treatment-care-and-prevention-in-country-experience
#17
Alash'le G Abimiku
An unprecedented influx of funds and support through large programs such as the Global Fund for AIDS, Malaria and Tuberculosis and the World Health Organization's and President's Emergency Plan for AIDS Relief (PEPFAR) has made it possible for more than 1 million persons in resource-limited settings to access AIDS treatment and several million more to be in care and prevention programs. Nevertheless, there remain major challenges that prevent AIDS drugs and care from reaching many more in need, especially in rural settings...
June 2009: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/19160348/territorial-belonging-of-the-middle-hepatic-vein-in-living-liver-donor-candidates-evaluated-by-three-dimensional-computed-tomographic-reconstruction-and-virtual-liver-resection
#18
A Radtke, G Sgourakis, G C Sotiropoulos, E P Molmenti, F H Saner, S Timm, M Malagó, H Lang
BACKGROUND: Postoperative venous congestion can lead to graft and remnant liver failure in living donor liver transplantation. This study was designed to delineate 'territorial belonging' of the middle hepatic vein (MHV) and to identify hepatic venous anatomy at high risk of outflow congestion. METHODS: MHV belonging patterns for right (RHL) and left (LHL) hemilivers were evaluated by three-dimensional computed tomographic reconstruction and virtual hepatectomy in 138 consecutive living liver donor candidates...
February 2009: British Journal of Surgery
https://www.readbyqxmd.com/read/19015164/selective-screening-for-asymptomatic-carotid-artery-disease-prior-to-isolated-heart-valve-surgery
#19
Hany Zayed, Ahmad Ali, Olaf Wendler, Hisham Rashid
OBJECTIVE: To assess the yield of screening for asymptomatic carotid artery disease prior to isolated heart valve surgery (IHVS). METHODS: Retrospective analysis of the preoperative carotid duplex scans performed in neurologically asymptomatic patients who underwent IHVS between 2003 and 2006 was performed. Internal carotid artery (ICA) stenosis of 70% was considered significant. Patients with concomitant coronary artery disease were excluded. RESULTS: A total of 177 patients underwent IHVS (one valve in 165 and 2 valves in 12 patients)...
October 2009: Angiology
https://www.readbyqxmd.com/read/18617630/contrasting-effects-of-isocapnic-and-hypocapnic-hyperventilation-on-orthostatic-circulatory-control
#20
COMPARATIVE STUDY
Roland D Thijs, Joost G van den Aardweg, Robert H A M Reijntjes, J Gert van Dijk, Johannes J van Lieshout
The effects of hyperventilation (HV) on mean arterial pressure (MAP) are variable. To identify factors affecting the MAP response to HV, we dissected the effects of hypocapnic HV (HHV) and isocapnic HV (IHV) and evaluated the effects of acute vs. prolonged HHV. In 11 healthy subjects the cardio- and cerebrovascular effects of HHV and IHV vs. normal ventilation were examined for 15 min in the supine position and also for 15 min during 60 degrees head-up tilt. The end-tidal CO(2) of the HHV condition was set at 15-20 mmHg...
October 2008: Journal of Applied Physiology
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