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Cvp central venous pressure

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https://www.readbyqxmd.com/read/29898246/evaluation-of-pulse-pressure-variation-and-pleth-variability-index-to-predict-fluid-responsiveness-in-mechanically-ventilated-isoflurane-anesthetized-dogs
#1
Hiroki Sano, Joonbum Seo, Paul Wightman, Nick J Cave, Mike A Gieseg, Craig B Johnson, Paul Chambers
OBJECTIVE: To evaluate whether pulse pressure variation (PPV) and pleth variability index (PVI) are more accurate than central venous pressure (CVP) for predicting fluid responsiveness in mechanically ventilated isoflurane-anesthetized dogs after premedication with acepromazine. DESIGN: Prospective experimental trial. SETTING: University teaching hospital. ANIMALS: Twelve Harrier hound dogs. INTERVENTIONS: Each dog was anesthetized and had a fluid challenge performed...
June 13, 2018: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/29890212/relationship-of-central-venous-pressure-to-body-fluid-volume-status-and-its-prognostic-implication-in-patients-with-acute-decompensated-heart-failure
#2
Taiki Sakaguchi, Akio Hirata, Kazunori Kashiwase, Yoshiharu Higuchi, Tomohito Ohtani, Yasushi Sakata, Yoshio Yasumura
BACKGROUND: Although central venous pressure (CVP) is a surrogate measure of preload in patients with acute decompensated heart failure (ADHF), it is a multifactorial index influenced not only by fluid volume status, but also by cardiac pump function and other factors. We aimed to elucidate the individual pathophysiologic factors of CVP elevation in ADHF patients by assessing the relationship between CVP and extracellular fluid volume status (EVS). METHODS AND RESULTS: We quantified EVS in 100 ADHF patients using bioelectrical impedance analysis...
June 8, 2018: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/29878942/intraoperative-hemodynamic-and-echocardiographic-measurements-associated-with-severe-right-ventricular-failure-after-left-ventricular-assist-device-implantation
#3
Michael D Gudejko, Brian R Gebhardt, Farhad Zahedi, Ankit Jain, Janis L Breeze, Matthew R Lawrence, Stanton K Shernan, Navin K Kapur, Michael S Kiernan, Greg Couper, Frederick C Cobey
BACKGROUND: Severe right ventricular failure (RVF) after left ventricular assist device (LVAD) implantation increases morbidity and mortality. We investigated the association between intraoperative right heart hemodynamic data, echocardiographic parameters, and severe versus nonsevere RVF. METHODS: A review of LVAD patients between March 2013 and March 2016 was performed. Severe RVF was defined by the need for a right ventricular mechanical support device, inotropic, and/or inhaled pulmonary vasodilator requirements for >14 days...
June 5, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29808259/evaluation-of-external-reference-levels-for-central-venous-pressure-measurements-of-severely-obese-patients-in-the-supine-position
#4
Kazuyuki Mizunoya, Hitoshi Saito, Yuji Morimoto
PURPOSE: A proper reference level is important for measuring intracardiac pressures, especially for parameters with small normal values such as central venous pressure (CVP). Although several external zero reference levels (eZRLs) have been proposed for non-obese patients, none has been reported for severely obese patients. The aim of this study was to investigate an appropriate eZRL for CVP measurements of severely obese patients. METHODS: Chest computed tomography images of 65 patients with body mass index (BMI) ≥ 35 kg/m2 were retrospectively reviewed...
May 28, 2018: Journal of Anesthesia
https://www.readbyqxmd.com/read/29768534/impact-of-dexmedetomidine-on-hemodynamics-in-rabbits
#5
Jianjun Ren, Changfa Li, Shuxian Ma, Jiangli Wu, Yanjie Yang
PURPOSE: To evaluate the effects of single intravenous administration of Dexmedetomidine (DEX) on hemodynamics in rabbits. METHODS: A total of 32 New Zealand white rabbits were randomly divided into the control group (Group C), Group D1 (2.75 μg/kg), Group D2 (5.5 μg/kg), and Group D3 (8.25 μg/kg) to compare systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate (HR), central venous pressure (CVP), left ventricular systolic pressure (LVSP), left ventricular end-stage diastolic pressure (LVEDP), left ventricular developmental pressure (LVDP), +dp/dtmax, -dp/dtmax, and t-dp/dtmax at different time points...
April 2018: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29756692/the-presence-of-elastic-compression-stockings-reduces-the-fluid-responsiveness-of-patients-in-the-operating-room
#6
Elie Zogheib, Julien Maizel, Nabil Cherradi, Ammar Benammar, Béatrice Labont, Abdel Hchikat, Michael Bernasinski, Faouzi Trojette, Michel Slama, Hervé Dupont
BACKGROUND: To investigate whether elastic compression stockings (ECS) can affect fluid responsiveness parameters before and during passive leg raising (PLR) maneuvers. METHODS: In the operating room (OR), we performed a prospective study including patients referred for cardiac surgery. Blood pressure (BP), ΔPP, heart rate (HR), central venous pressure (CVP), stroke volume (SV) and aortic blood flow (ABF) (by esophageal doppler) were measured according to four conditions: supine position without ECS (baseline 1), lower limbs raised to an angle of 45° (PLR 1), returned to the supine position with ECS (baseline 2), then a second PLR maneuver with ECS was performed (PLR 2)...
May 11, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29747290/-the-relationship-between-arterial-blood-lactate-clearance-prognosis-and-myocardial-damage-in-patients-with-septic-shock-after-early-goal-directed-therapy
#7
X L Shang, D W Liu, X T Wang, H W He, H M Zhang, L X Su, P Pan
Objective: To evaluate the prognostic value of arterial blood lactate clearance based on central venous oxygen saturation and perfusion index in patients with septic shock related myocardial injury after early goal-directed therapy. Methods: One hundred and fifty-seven patients with septic shock after early resuscitation were enrolled from August 2013 to July 2016 in ICU at Peking Union Medical College Hospital. Parameters indicating early resuscitation included central venous pressure (CVP) 8-12 mmHg (1 mmHg=0...
May 1, 2018: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29746600/impact-of-positive-end-expiratory-pressure-on-cerebral-hemodynamic-in-paediatric-patients-with-post-traumatic-brain-swelling-treated-by-surgical-decompression
#8
Silvia De Rosa, Gianluca Villa, Paola Franchi, Aldo Mancino, Federica Tosi, Marina Alessandra Martin, Simona Bazzano, Giorgio Conti, Silvia Maria Pulitanò
INTRODUCTION: The objective of our present study is to evaluate the impact of different PEEP levels on cerebral hemodynamic, gas exchanges and respiratory system mechanics in paediatric patients with post-traumatic brain swelling treated with decompressive craniectomy (DC). MATERIALS AND METHODS: A prospective physiologic study was carried out on 14 paediatric patients presenting with severe traumatic brain swelling treated with DC. Transcranial Doppler ultrasonography was performed on the middle cerebral artery bilaterally after DC...
2018: PloS One
https://www.readbyqxmd.com/read/29744618/association-between-central-venous-pressure-as-assessed-by-echocardiography-left-ventricular-function-and-acute-cardio-renal-syndrome-in-patients-with-st-segment-elevation-myocardial-infarction
#9
Shafik Khoury, Arie Steinvil, Amir Gal-Oz, Gilad Margolis, Aviram Hochstatd, Yan Topilsky, Gad Keren, Yacov Shacham
BACKGROUND: Recent reports have demonstrated the adverse effects of venous congestion on renal function in patients with heart failure. None of these trials, however, has evaluated the effect of acute myocardial ischemia on the occurrence of acute kidney injury (AKI). METHODS: We conducted a retrospective study of 1336 ST segment elevation myocardial infarction (STEMI) patients undergoing primary percutaneous coronary intervention (PCI) between June 2012 and June 2016...
May 9, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29721645/midazolam-increases-preload-dependency-during-endotoxic-shock-in-rabbits-by-affecting-venous-vascular-tone
#10
Jianxiao Chen, Tao Yu, Federico Longhini, Xiwen Zhang, Songqiao Liu, Ling Liu, Yi Yang, Haibo Qiu
BACKGROUND: Septic patients often require sedation in intensive care unit, and midazolam is one of the most frequently used sedatives among them. But the interaction between midazolam and septic shock is not known. The aim of this study is to investigate the effects of midazolam on preload dependency in an endotoxic shock model by evaluating systemic vascular tone and cardiac function. METHODS: Eighteen rabbits were randomly divided into three groups: Control group, MID1 group and MID2 group...
May 2, 2018: Annals of Intensive Care
https://www.readbyqxmd.com/read/29614507/renoprotective-postoperative-monitoring-what-is-the-best-method-for-computing-renal-perfusion-pressure-an-observational-prospective-multicentre-study
#11
Csaba Kopitko, Laszlo Medve, Tibor Gondos
BACKGROUND: Low mean arterial pressure (MAP) is a well-known risk factor for postoperative acute kidney injury (AKI), but probably it is not the sole hemodynamic parameter that can influence the development of renal failure. There are data in cardiac patients supporting the role of renal venous congestion in the development of AKI. The aim of our study was to determine a combination of factors best predicting the development of AKI. METHODS: Data were collected prospectively for adult patients admitted after major abdominal surgery to 9 Hungarian intensive care units...
April 3, 2018: Nephron
https://www.readbyqxmd.com/read/29593416/influence-of-stroke-volume-variation-on-fluid-treatment-and-postoperative-complications-in-thoracic-surgery
#12
Cengiz Sahutoglu, Erbil Turksal, Seden Kocabas, Fatma Zekiye Askar
Background: Fluid management in critically ill patients usually relies on increasing preload to augment cardiac output. In the present study, we aimed to evaluate whether stroke volume variation (SVV) can guide fluid therapy and reduce complications. Patients and methods: In this retrospective study, a total of 88 patients who underwent lobectomy were divided into two groups: group 1 (SVV, n=43) and group 2 (conventional or central venous pressure [CVP], n=45). Heart rate, blood pressure, oxygen saturation, SVV (only group 1), CVP (all patients), urea, creatinine, and hemoglobin levels before and after surgery, use of fluid, blood and inotropic agents, and postoperative complications were recorded retrospectively...
2018: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29573604/value-of-the-combination-of-renal-resistance-index-and-central-venous-pressure-in-the-early-prediction-of-sepsis-induced-acute-kidney-injury
#13
Jieqiong Song, Wei Wu, Yizhou He, Shilong Lin, Duming Zhu, Ming Zhong
PURPOSE: Early prediction of acute kidney injury (AKI) in septic patients is difficult. This study aimed to assess the values of renal resistive index (RI), central venous pressure (CVP), and their combination in the early prediction of sepsis-induced AKI. METHODS: A prospective cohort study was performed in septic patients. The variables potentially associated with AKI were recorded at admission and compared between the AKI and non-AKI groups. The variables independently associated with sepsis-induced AKI were identified using multivariable logistic regression, and the area under the receiver operating characteristic curve (AUROC) analysis was calculated...
June 2018: Journal of Critical Care
https://www.readbyqxmd.com/read/29569112/phenylephrine-increases-cardiac-output-by-raising-cardiac-preload-in-patients-with-anesthesia-induced-hypotension
#14
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
https://www.readbyqxmd.com/read/29563210/venous-waveform-morphological-changes-associated-with-treatment-of-symptomatic-venous-sinus-stenosis
#15
James L West, Rebecca M Garner, Garret P Greeneway, Justin R Traunero, Carol A Aschenbrenner, Jasmeet Singh, Stacey Q Wolfe, Kyle M Fargen
INTRODUCTION: Venous outflow obstruction is recognized as a contributing factor in a subset of patients with idiopathic intracranial hypertension (IIH). Little is known about venous sinus waveform morphology or how it changes after stenting. METHODS: Fifteen patients with IIH underwent waveform recording during catheter venography and manometry. Ten patients (Group A) with venous sinus stenosis and pressure gradient ≥7 mm Hg underwent waveform recording during awake venography and during stenting under general anesthesia...
March 21, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29538440/impact-of-large-volume-paracentesis-on-respiratory-parameters-including-transpulmonary-pressure-and-on-transpulmonary-thermodilution-derived-hemodynamics-a-prospective-study
#16
Ulrich Mayr, Eugen Karsten, Tobias Lahmer, Sebastian Rasch, Philipp Thies, Benedikt Henschel, Gerrit Fischer, Roland M Schmid, Wolfgang Huber
INTRODUCTION: Appropriate mechanical ventilation and prevention of alveolar collaps is mainly dependent on transpulmonary pressure TPP. TPP is assessed by measurement of esophageal pressure EP, largely influenced by pleural and intraabdominal pressure IAP. Consecutively, TPP-guided ventilation might be particularly useful in patients with high IAP. This study investigates the impact of large volume paracentesis LVP on TPP, EP, IAP as well as on hemodynamic and respiratory function in patients with liver cirrhosis and tense ascites...
2018: PloS One
https://www.readbyqxmd.com/read/29527693/relationship-between-inferior-vena-cava-diameter-ratio-and-central-venous-pressure
#17
Qing Zhang, Xiaoting Wang, Longxiang Su, Hongmin Zhang, Wenzhao Chai, Yangong Chao, Wei He, Dawei Liu
PURPOSE: To explore the relationship between the shape of the inferior vena cava (IVC) lumen and central venous pressure (CVP). METHODS: In 60 patients undergoing mechanical ventilation and CVP monitoring in the Intensive Care Unit of Peking Union Medical College Hospital from July to October 2016, we measured with B-mode ultrasonography the transverse maximum (MXD) and minimum diameter (MID) of the IVC at end expiration, and calculated the diameter ratio (DR) as MXD/MID...
March 12, 2018: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/29526051/central-venous-pressure-monitoring-in-living-donor-kidney-recipients-does-not-affect-immediate-graft-function-a-propensity-score-analysis
#18
Dieter Adelmann, Leonie Bicknell, Claus U Niemann, John Feiner, Garrett R Roll, Lyle Burdine, Elizabeth L Whitlock
BACKGROUND: During kidney transplantation, intraoperative fluid management can affect post-transplant graft function. It is unclear whether or not central venous pressure (CVP) monitoring is required to guide fluid therapy during kidney transplantation. METHODS: We compared post-transplant graft function in recipients of living donor kidney transplants between August 2006 and March 2009 based on the use or absence of intraoperative CVP monitoring. Graft function, assessed using the creatinine reduction ratio on postoperative day 2 (CCR2), was evaluated by multivariable linear regression analysis and in a propensity-matched cohort...
March 11, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29519280/-variability-of-peripheral-arterial-peak-velocity-predicts-fluid-responsiveness-in-patients-with-septic-shock
#19
Nianfang Lu, Li Jiang, Bo Zhu, Wenyong Han, Yingqi Zhao, Yuntao Shi, Fashuang Guo, Xiuming Xi
OBJECTIVE: To explore the accuracy of fluid responsiveness assessment by variability of peripheral arterial peak velocity and variability of inferior vena cava diameter (ΔIVC) in patients with septic shock. METHODS: A prospective study was conducted. The patients with septic shock undergoing mechanical ventilation (MV) admitted to intensive care unit (ICU) of Beijing Electric Power Hospital from January 2016 to December 2017 were enrolled. According to sepsis bundles of septic shock, volume expansion (VE) was conducted...
March 2018: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29507790/hyperthermic-intrathoracic-chemotherapy-after-extended-pleurectomy-and-decortication-for-malignant-pleura-mesothelioma-an-observational-study-on-outcome-and-microcirculatory-changes
#20
Luca Luzzi, Federico Franchi, Annarita Dapoto, Marco Ghisalberti, Roberto Corzani, Daniele Marrelli, Luca Marchetti, Piero Paladini, Sabino Scolletta
Background: In the treatment of malignant pleural mesothelioma the Hyperthermic Intra THOracic Chemotherapy (HITHOC) can improve the efficacy of pleurectomy and decortication with a local cytotoxic effect. However its biological impact in patient's hemodynamic and microcirculatory changes were rarely investigated. Aim of this study is to describe our experience with HITHOC after pleurectomy and decortication evaluating the role of sublingual video-microscopy in assessing the microcirculatory changes in the perioperative period...
January 2018: Journal of Thoracic Disease
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