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Central Venous Pressure

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https://www.readbyqxmd.com/read/29456690/protective-effects-of-recombinant-human-brain-natriuretic-peptide-in-perioperative-period-during-open-heart-surgery
#1
Yunbin Xu, Yong Li, Weiguo Bao, Shi Qiu
The aim of the present study was to evaluate the protective effects and safety aspects of recombinant human brain natriuretic peptide (rhBNP) on cardiac functions of patients undergoing open-heart surgery during perioperative period. In total, 150 patients undergoing open heart surgery in the Second Hospital of Shandong Universty from August 2015 to July 2016 were randomly divided into control group and observation group each with 75 cases. Patients in control group were treated by routine rehabilitation while patients in the observation group were treated by both the routine rehabilitation and rhBNP...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456349/effects-of-crystalloid-preloading-20-ml-kg-on-hemodynamics-in-relation-to-postural-changes-in-patients-undergoing-neurosurgical-procedures-in-sitting-position
#2
M Ranjith, Prasanna Udupi Bidkar, K Narmadalakshmi, Praveen R Talawar
Background: Hemodynamic disturbances are common during positioning the patients from supine to sitting for neurosurgical procedures. The reported incidence of hypotension varies from 5% to 32%. The aim of the study was to study the effect of crystalloid preloading on hemodynamic parameters during positioning the patient from supine to sitting position. Materials and Methods: In this prospective observational trial, 20 patients were enrolled. Two patients had a patent foramen ovale on transesophageal echocardiography and were excluded from the study...
January 2018: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/29455321/respiratory-quotient-estimations-as-additional-prognostic-tools-in-early-septic-shock
#3
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
https://www.readbyqxmd.com/read/29444562/fluid-resuscitation-during-early-sepsis-a-need-for-individualization
#4
Mathieu Jozwiak, Olfa Hamzaoui, Xavier Monnet, Jean-Louis Teboul
The prognosis of septic shock is tightly linked to the earliness of both appropriate antibiotic therapy and early hemodynamic resuscitation. This latter is essentially based on fluid and vasopressors administration. The step-by-step strategy, called "early goal-directed therapy" (EGDT) developed in 2001 and endorsed by the Surviving Sepsis Campaign (SSC) between 2004 and 2016 is no longer recommended. Indeed, recent multicenter randomized clinical trials showed no reduction in all-cause mortality, duration of organ support and in-hospital length of stay with EGDT in comparison with standard care...
February 14, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29443413/vascular-access-for-therapeutic-plasma-exchange
#5
REVIEW
Tina S Ipe, Marisa B Marques
Therapeutic plasma exchange is an apheresis modality in which plasma is separated from the blood cellular components ex vivo, discarded, and replaced with an isosmotic fluid (most commonly 5% albumin) to maintain appropriate oncotic pressure in the patient. Therapeutic plasma exchange is used in the treatment of many diseases and indications. The recent seventh edition of the American Society for Apheresis guidelines indicates approximately 72 diseases and 116 indications for which therapeutic plasma exchange may be effective...
February 2018: Transfusion
https://www.readbyqxmd.com/read/29443412/an-ex-vivo-comparison-of-vascular-access-devices-used-in-extracorporeal-photopheresis
#6
Jeffrey Szymanski, Priyank Shah, Marian Dynis, Donna Mansfield, Connie Hamilton, George Despotis
BACKGROUND: Central venous access devices are commonly used in extracorporeal photopheresis, but their performance has not been systematically evaluated. The primary objective of this study was to compare pressures at various flow rates for central venous access devices in an ex vivo simulation of photopheresis. STUDY DESIGN AND METHODS: Diluted, heparinized red blood cells were circulated through central access devices in series with a photopheresis system, and pressures at several flow rates were recorded...
February 2018: Transfusion
https://www.readbyqxmd.com/read/29439683/elevated-central-venous-pressure-is-associated-with-increased-mortality-in-pediatric-septic-shock-patients
#7
Seung Jun Choi, Eun-Ju Ha, Won Kyoung Jhang, Seong Jong Park
BACKGROUND: Central venous pressure (CVP) is an important factor affecting capillary blood flow, and it is associated with poor outcomes in adult septic shock patients. However, whether a similar association exists in pediatric patients remains unclear. METHODS: We retrospectively analyzed data from patients admitted to our pediatric intensive care unit (PICU) between February 2009 and July 2015. Patients were divided into two groups-survivors and nonsurvivors-according to 28-day mortality...
February 13, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29428622/targeted-increase-in-pulmonary-blood-flow-in-a-bidirectional-glenn-circulation
#8
Samuel L Casella, Aditya Kaza, Pedro Del Nido, James E Lock, Audrey Marshall
Objective In patients with a Glenn shunt and unilateral pulmonary vascular abnormalities, supplemental pulmonary blood flow may improve antegrade flow in the target lung and may permit eventual Fontan completion, while mitigating the risks of uncontrolled additional flow to the contralateral lung. We attempted this by inserting a small aortopulmonary shunt into the affected pulmonary artery and banding the central pulmonary artery. .Methods We performed a retrospective review of all patients who underwent this procedure from 2000-2015...
February 8, 2018: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29428236/liver-fibrosis-marker-7s-domain-of-collagen-type-iv-in-patients-with-pre-capillary-pulmonary-hypertension
#9
Akiomi Yoshihisa, Yusuke Kimishima, Takatoyo Kiko, Yu Sato, Shunsuke Watanabe, Yuki Kanno, Satoshi Abe, Makiko Miyata-Tatsumi, Takamasa Sato, Satoshi Suzuki, Masayoshi Oikawa, Atsushi Kobayashi, Takayoshi Yamaki, Koichi Sugimoto, Hiroyuki Kunii, Kazuhiko Nakazato, Hitoshi Suzuki, Takafumi Ishida, Yasuchika Takeishi
BACKGROUND: Pulmonary hypertension (PH) causes right ventricular dysfunction and central venous congestion, and may lead to congestive hepatopathy. The serum 7S domain of collagen type IV (P4NP 7S) is an established marker of liver fibrosis in chronic liver disease. We aimed to determine whether P4NP 7S is related to hemodynamic parameters, and assessed the potential values of P4NP 7S to predict mortality. METHODS: Consecutive 76 pre-capillary PH patients were divided into tertiles based on their serum P4NP 7S levels...
February 7, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29425776/the-effects-of-hemoglobin-glutamer-200-and-ino-on-pulmonary-vascular-tone-and-arterial-oxygenation-in-an-experimental-acute-respiratory-distress-syndrome
#10
Maria Theresa Voelker, Andreas Bergmann, Thilo Busch, Nora Jahn, Sven Laudi, Katharina Noreikat, Philipp Simon, Sven Bercker
INTRODUCTION: Hemoglobin-based oxygen carriers (HBOC) have been developed as an alternative to blood transfusions. Their nitric-oxide-scavenging properties HBOC also induce vasoconstriction. In acute lung injury, an excess of nitric oxide results in a general vasodilation, reducing oxygenation by impairing the hypoxic pulmonary vasoconstriction. Inhaled nitric oxide (iNO) is used to correct the ventilation perfusion mismatch. We hypothesized that the additional use of HBOC might increase this effect...
February 6, 2018: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29422868/relationship-between-aortic-compliance-and-impact-of-cerebral-blood-flow-fluctuation-to-dynamic-orthostatic-challenge-in-endurance-athletes
#11
Tsubasa Tomoto, Tomoko Imai, Shigehiko Ogoh, Seiji Maeda, Jun Sugawara
Aorta effectively buffers cardiac pulsatile fluctuation generated from the left ventricular (LV) which could be a mechanical force to high blood flow and low-resistance end-organs such as the brain. A dynamic orthostatic challenge may evoke substantial cardiac pulsatile fluctuation via the transient increases in venous return and stroke volume (SV). Particularly, this response may be greater in endurance-trained athletes (ET) who exhibit LV eccentric remodeling. The aim of this study was to determine the contribution of aortic compliance to the response of cerebral blood flow fluctuation to dynamic orthostatic challenge in ET and age-matched sedentary (SED) young healthy men...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29417325/preoperative-right-sided-cardiac-congestion-is-associated-with-gastrointestinal-bleeding-in-patients-with-continuous-flow-left-ventricular-assist-devices
#12
Yutaka Tomizawa, Akiko Tanaka, Hiroto Kitahara, Atsushi Sakuraba, Nir Uriel, Valluvan Jeevanandam, Takeyoshi Ota
BACKGROUND: Large scale data on preoperative risk stratification for gastrointestinal bleeding (GIB) following continuous-flow left ventricular assist device (CF-LVAD) implantation are scarce. AIMS: To identify independent predictors for GIB following CF-LVAD implantation. METHODS: We conducted a retrospective cohort study of consecutive 243 patients who underwent CF-LVAD implantation (HeartMateII) from January 2009 to March 2015 at the University of Chicago Medical Center...
February 8, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29405326/hemodynamic-effects-of-connection-to-continuous-renal-replacement-therapy-in-a-pediatric-animal-model
#13
Sarah Nicole Fernández Lafever, Maria Jose Santiago, Jorge López, Rafael González, María José Solana, Javier Urbano, Jesus Lopez-Herce
To assess the hemodynamic effects of connection to continuous renal replacement therapy (CRRT) in a pediatric experimental animal model. Prospective experimental study was performed using piglets between 2 and 3 months of age and 9-11 kg. CRRT with a PrismaflexR monitor and HF20 filter (surface of 0.2 m2 ) was started after monitoring and anesthetic induction with an initial blood flow at 20 mL/min with 10 mL/min increases every minute until the goal flow of 5 mL/kg/min was achieved. Heart rate, blood pressure, central venous pressure, cardiac index, and renal blood flow were registered at baseline, 5, 15, 30, 60, 120, 180, 240, and 360 min...
February 6, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29397598/-the-clinical-significance-of-microcirculation-and-oxygen-metabolism-evaluation-in-acute-kidney-injury-assessment-in-patients-with-septic-shock-after-resuscitation
#14
C Yu, D W Liu, X T Wang, H W He, P Pan, Z Q Xing
Objective: To evaluate the value of microcirculation and oxygen metabolism evaluation (MicrOME) in acute kidney injury(AKI) evaluation in patients with septic shock after resuscitation. Methods: Consecutive patients with septic shock after resuscitation and mechanical ventilation were enrolled from October 2016 to February 2017 in ICU at Peking Union Medical College Hospital.Patients were divided into 3 groups based on 10 min transcutaneous oxygen challenge test transcutaneous partial pressure of oxygen(PtcO(2))and venoarterial pressure of carbon dioxide difference (Pv-aCO(2)) /arteriovenous O(2) content difference (Ca-vO(2)) by blood gas analysis, i...
February 1, 2018: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29385643/cross-sectional-association-between-oral-health-and-retinal-microcirculation
#15
Stefanie Samietz, Clemens Jürgens, Till Ittermann, Birte Holtfreter, Christiane Pink, Sabine Schipf, Reiner Biffar, Henry Völzke, Thomas Kocher, Frank Tost
AIM: To investigate the relation between oral health status and microcirculation we analyzed the association between periodontitis and number of teeth with retinal vessel diameters. METHODS: We analyzed data from 4420 subjects from the Study-of-Health-in-Pomerania-TREND (SHIP-TREND). All subjects (3183 for number of teeth, 3013 for mean probing depth, 2894 for mean attachment level) underwent nonmydriatic funduscopy and dental examination. We measured central retinal arteriolar (CRAE), venular (CRVE) vessel diameters and calculated arterio-venous-ratio (AVR) from static-vessel-analysis...
January 31, 2018: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29384288/role-of-central-venous-pressure-monitoring-in-critical-care-settings
#16
Barry Thomas Hill
Central venous pressure (CVP) monitoring is used to assess the fluid status of patients in critical care settings. This article explains CVP monitoring, discussing the rationale for its use, the ways CVP can be measured, and the physiological factors that can affect the reliability and validity of CVP measurement. It also discusses the complications associated with CVP monitoring and the nursing responsibilities in relation to this activity.
January 31, 2018: Nursing Standard
https://www.readbyqxmd.com/read/29383761/reducing-intra-abdominal-pressure-in-peritoneal-dialysis-patients-to-avoid-transient-hemodialysis
#17
EDITORIAL
Januvi Jegatheswaran, Jeffrey Warren, Deborah Zimmerman
Patients treated with peritoneal dialysis (PD) are often required to switch to hemodialysis (HD) temporarily when they develop abdominal wall hernias and dialysate leaks, peritonitis or undergo thoracic or abdominal surgeries. There are significant risks associated with incident hemodialysis including possible central venous catheter infections, thrombosis, and need for invasive procedures. Therefore, strategies to avoid temporary transfer to hemodialysis are desirable. The increased intra-abdominal pressure associated with PD is largely responsible for the issues requiring withholding PD...
January 30, 2018: Seminars in Dialysis
https://www.readbyqxmd.com/read/29377922/assessing-the-impacts-of-total-liquid-ventilation-on-left-ventricular-diastolic-function-in-a-model-of-neonatal-respiratory-distress-syndrome
#18
Michaël Sage, Mathieu Nadeau, Claudia Forand-Choinière, Julien Mousseau, Jonathan Vandamme, Claire Berger, Jean-Sébastien Tremblay-Roy, Renaud Tissier, Philippe Micheau, Étienne Fortin-Pellerin
BACKGROUND: Filling the lung with dense liquid perfluorocarbons during total liquid ventilation (TLV) might compress the myocardium, a plausible explanation for the instability occasionally reported with this technique. Our objective is to assess the impacts of TLV on the cardiovascular system, particularly left ventricular diastolic function, in an ovine model of neonatal respiratory distress syndrome. METHOD: Eight newborns lambs, 3.0 ± 0.4 days (3.2 ± 0.3kg) were used in this crossover experimental study...
2018: PloS One
https://www.readbyqxmd.com/read/29374921/-effects-of-cardiac-support-on-delayed-resuscitation-in-extensively-burned-patients-with-shock
#19
R Xiao, Y S Huang, G A Lin, S A Yuan, D S Hu
Objective: To explore the effects of cardiac support on delayed resuscitation in extensively burned patients with shock. Methods: Clinical data of 62 extensively burned patients with shock on admission, admitted to the 159th Hospital of PLA (hereinafter referred to as our hospital) from January 2012 to January 2017, were retrospectively analyzed. They were divided into cardiac support group ( n =35) and control group ( n =27) according to the use of deslanoside and ulinastatin. All patients were treated with routine fluid resuscitation based on the formula of the Third Military Medical University till post injury hour (PIH) 48...
January 20, 2018: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/29368625/perioperative-fluid-management-in-kidney-transplantation-a-black-box
#20
REVIEW
Maria Helena Calixto Fernandes, Thomas Schricker, Sheldon Magder, Roupen Hatzakorzian
The incidence of delayed graft function in patients undergoing kidney transplantation remains significant. Optimal fluid therapy has been shown to decrease delayed graft function after renal transplantation. Traditionally, the perioperative volume infusion regimen in this patient population has been guided by central venous pressure as an estimation of the patient's volume status and mean arterial pressure, but this is based on sparse evidence from mostly retrospective observational studies. Excessive volume infusion to the point of no further fluid responsiveness can damage the endothelial glycocalyx and is no longer considered to be the best approach...
January 25, 2018: Critical Care: the Official Journal of the Critical Care Forum
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