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Haemodynamic monitoring

U Janssens, L Engelmann
No abstract text is available yet for this article.
October 2016: Medizinische Klinik, Intensivmedizin und Notfallmedizin
Anton Krige, Martin Bland, Thomas Fanshawe
BACKGROUND: Passive leg raising (PLR) is a so called self-volume challenge used to test for fluid responsiveness. Changes in cardiac output (CO) or stroke volume (SV) measured during PLR are used to predict the need for subsequent fluid loading. This requires a device that can measure CO changes rapidly. The Vigileo™ monitor, using third-generation software, allows continuous CO monitoring. The aim of this study was to compare changes in CO (measured with the Vigileo device) during a PLR manoeuvre to calculate the accuracy for predicting fluid responsiveness...
2016: Journal of Intensive Care
Dimuthu Vinayagam, Sophie Bowe, Elaine Sheehan, Basky Thilaganathan, Asma Khalil
BACKGROUND: Due to the importance of cardiovascular dysfunction and advances in the development and use of non-invasive cardiac output (CO) monitoring devices, there is a growing interest in their use in the obstetric population. The aim of this study was to compare two commercially available, non-invasive CO monitors in the assessment of heart rate (HR), stroke volume (SV), CO, cardiac index (CI) and total peripheral resistance (TPR) in an obstetric population. METHODS: This was a prospective, comparative study including two groups...
October 6, 2016: Fetal Diagnosis and Therapy
Marina Dias-Neto, Pedro Videira Reis, Dalila Rolim, José Fernando Ramos, José Fernando Teixeira, Sérgio Sampaio
Spinal cord ischemia remains the Achilles' heel of thoracic and thoracoabdominal diseases management. Great improvements in morbidity and mortality have been obtained with the endovascular approach TEVAR (Thoracic Endovascular Aortic Repair) but this devastating complication continues to severely affect the quality of life, even if the primary success of the procedure - dissection/aneurysm exclusion - has been achieved.Several strategies to deal with this complication have been published in the literature over the time...
September 30, 2016: Vascular
D Vinayagam, O Patey, B Thilaganthan, A Khalil
INTRODUCTION: There is a paucity of data regarding the accuracy, reliability and reproducibility of non-invasive cardiac output monitors in pregnancy. The aim of this study was to compare cardiac output estimations obtained by USCOM® against those obtained by 2-dimensional transthoracic echocardiography (TTE). METHODS: Prospective, observational study in which 114 healthy pregnant and postpartum women had haemodynamic indices obtained by USCOM® and TTE. Accuracy and precision statistics (Bland Altman analysis) are presented as bias, precision, 95% limits of agreement (LOA) and mean percentage difference (MPD)...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
D Vinayagam, Juan Gutierrez, J Binder, B Thilaganathan, A Khalil
BACKGROUND: The increase in the prevalence of and the adverse risks to both mother and foetus associated with maternal obesity is a global concern. The adverse cardiovascular risk associated with obesity is well-known, however, there is a paucity of data assessing central haemodynamics in class 3 (morbid) obesity (BMI440 kg/m(2)) during pregnancy. OBJECTIVE: To compare the haemodynamic profile in women with class 3 maternal obesity against those with a normal BMI (20-30 kg/m(2)), using ultrasound-based, non-invasive haemodynamic monitoring...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
D Vinayagam, S Bampoe, B Thilaganathan, A Khalil
BACKGROUND: Intraoperative haemodynamic monitoring is carried out in high-risk surgical patients, often using invasive methods, including pulmonary artery catheterisation. Early goal-directed therapy in high-risk surgical patients reduces tissue hypoxia, organ failure and improves outcomes. Significant maternal morbidity arises as a result of perioperative haemorrhage. At present, heart rate and brachial blood pressure are used as proxy markers to aid in fluid resuscitation, however, we know that these exhibit minimal change during early stages of shock, and are poor indicators of the adequacy of therapeutic intervention...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
J Ambrozic, K Prokselj, M Lucovnik
INTRODUCTION: The ability to judge intravascular volume is fundamental in the management of patients with severe preeclampsia. Insufficient intravascular volume can result in decreased oxygen delivery to tissues and exacerbates organ dysfunction. On the other hand, fluid excesses can lead to fluid extravasation and pulmonary edema. Outside of pregnancy, transthoracic echocardiography and lung ultrasonography have become important diagnostic and monitoring tools in critically ill patients...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
D Vinayagam, O Patey, B Thilaganthan, A Khalil
INTRODUCTION: There is a paucity of data regarding the accuracy, reliability and reproducibility of non-invasive cardiac output monitors in pregnancy. The aim of this study was to compare cardiac output estimations obtained by USCOM® against those obtained by two-dimensional transthoracic echocardiography (TTE). METHODS: Prospective, observational study in which 114 healthy pregnant and postpartum women had haemodynamic indices obtained by USCOM® and TTE. Accuracy and precision statistics (Bland Altman analysis) are presented as bias, precision, 95% limits of agreement (LOA) and mean percentage difference (MPD)...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
Carlo Basile, Luigi Vernaglione, Francesco Casucci, Pasquale Libutti, Piero Lisi, Luigi Rossi, Valentina Vigo, Carlo Lomonte
BACKGROUND: Satisfactory vascular access flow (Qa) of an arteriovenous fistula (AVF) is necessary for haemodialysis (HD) adequacy. The aim of the present study was to further our understanding of haemodynamic modifications of the cardiovascular system of HD patients associated with an AVF. The main objective was to calculate using real data in what way an AVF influences the load of the left ventricle (LLV). METHODS: All HD patients treated in our dialysis unit and bearing an AVF were enrolled into the present observational cross-sectional study...
October 2016: Clinical Kidney Journal
P Schraverus, M M Kuijpers, J Coumou, C A Boly, C Boer, S van Kralingen
Morbidly obese patients are at increased risk of intra-operative haemodynamic instability, which may necessitate intensive monitoring. Non-invasive monitoring is increasingly used to measure cardiac output; however, it is unknown whether the weight-based algorithm utilised in these devices is applicable to patients with morbid obesity. We compared the level of agreement and trending ability of non-invasive cardiac output measurements (Nexfin(®) ) with the gold-standard thermodilution technique in 30 morbidly obese patients undergoing laparoscopic surgery...
September 26, 2016: Anaesthesia
Pardis Kaynezhad, Ilias Tachtsidis, Glen Jeffery
Mitochondria play a key role in ageing and disease. Their membrane potentials and ATP production decline with age and this is associated with progressive inflammation, cell loss and death. Here we use broadband Near-Infrared Spectroscopy (NIRS) to non-invasively measure in-vivo changes in aged retinal mitochondrial respiration following exposure to 670 nm, which improves mitochondrial performance and reduces inflammation. Low power NIR light was shone into the eye via a fibre optic and the reflection monitored to measure signature changes in the oxidation of cytochrome c oxidase (COX) in complex IV of the electron transport chain...
September 21, 2016: Experimental Eye Research
Małgorzata Lipinska-Gediga
Shock, defined at a cellular level, is a condition in which oxygen delivery to the cells is not sufficient to sustain cellular activity and support organ function. The central role of microcirculation in providing oxygen to the cells makes it of prime importance in determining organ function. In sepsis and septic shock, macrocirculatory alterations and microcirculatory dysfunction participate concurrently in the pathophysiology of organ failure. Haemodynamic coherence in shock is a condition in which normalization of systemic haemodynamic variables results in simultaneous amelioration in the perfusion of the microcirculation and restoration of tissue oxygenation as a final result...
September 23, 2016: Anaesthesiology Intensive Therapy
Bertrand Prunet, Pierre-Yves Cordier, Nicolas Prat, Sophie DE Bourmont, David Couret, Dominique Lambert, Pierre Michelet
OBJECTIVES: This study aimed to assess the short-term respiratory tolerance and haemodynamic efficiency of low-volume resuscitation with hypertonic saline and hydroxyethylstarch (HS/HES) in a pig model of lung contusion and controlled haemorrhagic shock. We hypothesised that a low-volume of HS/HES after haemorrhagic shock didn't impact contused lungs in terms of extravascular lung water 3hours after trauma. METHODS: A lung contusion resulting from blunt chest trauma was induced in 28 anaesthetised female pigs with five bolt shots to the right thoracic cage, followed by haemorrhagic shock and fluid resuscitation...
September 19, 2016: Anaesthesia, Critical Care & Pain Medicine
Hui C Choo, Kazunori Nosaka, Jeremiah J Peiffer, Mohammed Ihsan, Chow C Yeo, Chris R Abbiss
This study examined the test-retest reliability of near-infrared spectroscopy (NIRS), laser Doppler flowmetry (LDF) and Doppler ultrasound to assess exercise-induced haemodynamics. Nine men completed two identical trials consisting of 25-min submaximal cycling at first ventilatory threshold followed by repeated 30-s bouts of high-intensity (90% of peak power) cycling in 32.8 ± 0.4°C and 32 ± 5% relative humidity (RH). NIRS (tissue oxygenation index [TOI] and total haemoglobin [tHb]) and LDF (perfusion units [PU]) signals were monitored continuously during exercise, and leg blood flow was assessed by Doppler ultrasound at baseline and after exercise...
September 21, 2016: Journal of Sports Sciences
Oleg Mamontov, Mikhail Bogachev, Andrey Kozlenoc
OBJECTIVE: To assess the autonomic regulation in patients with various circadian blood pressure profile (CBPP) anomalies that persisted despite of combined antihypertensive therapy. DESIGN AND METHOD: We studied 114 hypertensives aged 56,8 ± 17,9 years receiving combined antihypertensive therapy divided into two groups, with adequate (n = 61) and inadequate (n = 53) CBPP. Groups were comparable in terms of age and number of drugs intake per day (2.8 ± 1...
September 2016: Journal of Hypertension
Philip B Adamson, Greg Ginn, Stefan D Anker, Robert C Bourge, William T Abraham
AIMS: Haemodynamic-guided heart failure (HF) management using directly measured cardiac filling pressures in symptomatic patients is now recommended in the European Society of Cardiology (ESC) Heart Failure Guidelines [Class IIb(B)]. This meta-analysis evaluates all data from completed clinical trials evaluating this approach in patients with HF. METHODS AND RESULTS: All trials evaluating the impact of HF management based on haemodynamic monitoring using implantable devices were reviewed using standard search engine methods...
September 16, 2016: European Journal of Heart Failure
Yahya Acar, Onur Tezel, Necati Salman, Erdem Cevik, Margarita Algaba-Montes, Alberto Oviedo-García, Mayra Patricio-Bordomás, Mustafa Z Mahmoud, Abdelmoneim Sulieman, Abbas Ali, Alrayah Mustafa, Ihab Abdelrahman, Mustafa Bahar, Osama Ali, H Lester Kirchner, Gregor Prosen, Ajda Anzic, Paul Leeson, Maryam Bahreini, Fatemeh Rasooli, Houman Hosseinnejad, Gabriel Blecher, Robert Meek, Diana Egerton-Warburton, Edina Ćatić Ćuti, Stanko Belina, Tihomir Vančina, Idriz Kovačević, Nadan Rustemović, Ikwan Chang, Jin Hee Lee, Young Ho Kwak, Do Kyun Kim, Chi-Yung Cheng, Hsiu-Yung Pan, Chia-Te Kung, Ela Ćurčić, Ena Pritišanac, Ivo Planinc, Marijana Grgić Medić, Radovan Radonić, Abiola Fasina, Anthony J Dean, Nova L Panebianco, Patricia S Henwood, Oliviero Fochi, Moreno Favarato, Ezio Bonanomi, Ivan Tomić, Youngrock Ha, Hongchuen Toh, Elizabeth Harmon, Wilma Chan, Cameron Baston, Gail Morrison, Frances Shofer, Angela Hua, Sharon Kim, James Tsung, Isa Gunaydin, Zeynep Kekec, Mehmet Oguzhan Ay, Jinjoo Kim, Jinhyun Kim, Gyoosung Choi, Dowon Shim, Ji-Han Lee, Jana Ambrozic, Katja Prokselj, Miha Lucovnik, Gabrijela Brzan Simenc, Asta Mačiulienė, Almantas Maleckas, Algimantas Kriščiukaitis, Vytautas Mačiulis, Andrius Macas, Sharad Mohite, Zoltan Narancsik, Hugon Možina, Sara Nikolić, Jan Hansel, Rok Petrovčič, Una Mršić, Simon Orlob, Markus Lerchbaumer, Niklas Schönegger, Reinhard Kaufmann, Chun-I Pan, Chien-Hung Wu, Sarah Pasquale, Stephanie J Doniger, Sharon Yellin, Gerardo Chiricolo, Maja Potisek, Borut Drnovšek, Boštjan Leskovar, Kristine Robinson, Clara Kraft, Benjamin Moser, Stephen Davis, Shelley Layman, Yusef Sayeed, Joseph Minardi, Irmina Sefic Pasic, Amra Dzananovic, Anes Pasic, Sandra Vegar Zubovic, Ana Godan Hauptman, Ana Vujaklija Brajkovic, Jaksa Babel, Marina Peklic, Vedran Radonic, Luka Bielen, Peh Wee Ming, Nur Hafiza Yezid, Fatahul Laham Mohammed, Zainal Abidin Huda, Wan Nasarudin Wan Ismail, W Yus Haniff W Isa, Hashairi Fauzi, Praveena Seeva, Mohd Zulfakar Mazlan
A1 Point-of-care ultrasound examination of cervical spine in emergency departmentYahya Acar, Onur Tezel, Necati SalmanA2 A new technique in verifying the placement of a nasogastric tube: obtaining the longitudinal view of nasogastric tube in addition to transverse view with ultrasoundYahya Acar, Necati Salman, Onur Tezel, Erdem CevikA3 Pseudoaneurysm of the femoral artery after cannulation of a central venous line. Should we always use ultrasound in these procedures?Margarita Algaba-Montes, Alberto Oviedo-García, Mayra Patricio-BordomásA4 Ultrasound-guided supraclavicular subclavian vein catheterization...
September 2016: Critical Ultrasound Journal
Bernardo Bollen Pinto, Glen Atlas, Bart F Geerts, Karim Bendjelid
The oesophageal Doppler (OD) is a minimally invasive haemodynamic monitor used in the surgical theatre and the ICU. Using the OD, goal-directed therapy (GDT) has been shown to reduce perioperative complications in high-risk surgical patients. However, most GDT protocols currently in use are limited to stroke volume optimisation. In the present manuscript, we examine the conceptual models behind new OD-based measurements. These would provide the clinician with a comprehensive view of haemodynamic pathophysiology; including pre-load, contractility, and afterload...
August 27, 2016: Journal of Clinical Monitoring and Computing
Hanife Karakaya Kabukcu, Nursel Sahin, Kezban Ozkaloglu, Ilhan Golbasi, Tulin Aydogdu Titiz
INTRODUCTION: To obtain the optimal anesthesia depth is not easy in cardiovascular surgery patients where the haemodynamic reserve is limited, due to reasons such as not being able to give the desired dose of anesthetic agent, or the change in the pharmacokinetics of the agent in the heart-lung machine. This study was planned to assess the contribution of bispectral index (BIS) monitoring in the depth of anesthesia. METHODS: The patients were divided into 2 groups, and BIS monitoring was used for each patient...
April 2016: Brazilian Journal of Cardiovascular Surgery
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