keyword
MENU ▼
Read by QxMD icon Read
search

Hemodynamic monitoring

keyword
https://www.readbyqxmd.com/read/29351134/carotid-doppler-sonography-additional-tool-to-assess-hemodynamic-improvement-after-transcatheter-aortic-valve-implantation
#1
Valeria Cammalleri, Francesco Romeo, Massimo Marchei, Andrea Anceschi, Gianluca Massaro, Saverio Muscoli, Francesca De Persis, Massimiliano Macrini, Gian P Ussia
PURPOSE: The aim of our study was to assess the arterial cerebral blood flow variations in patients with aortic valve stenosis, immediately after the transcatheter aortic valve implantation (TAVI). METHODS: The study population includes 62 consecutive patients who underwent TAVI for aortic valve stenosis (95%) and sugical bioprosthesis degeneration (5%). Carotid Doppler examination was performed recording blood flow, systolic peak velocity, time average mean velocity and mean acceleration time at baseline, after balloon aortic valvuloplasty, and within 10 min after the device release...
January 17, 2018: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/29350189/detection-of-thoracic-vascular-structures-by-electrical-impedance-tomography-a-systematic-assessment-of-prominence-peak-analysis-of-impedance-changes
#2
Karin Henriette Wodack, Sarah Buehler, Sarah A Nishimoto, Michael F Graessler, Christoph R Behem, Andreas Daniel Waldmann, Beat Mueller, Stephan H Böhm, Eugenijus Kaniusas, Florian Thürk, Alexander Maerz, Constantin J C Trepte, Daniel A Reuter
Electrical impedance tomography (EIT) is a noninvasive and radiation free bedside monitoring technology, primarily used to monitor lung function. First experimental data shows that the descending aorta can be detected at different thoracic heights and might allow the assessment of central hemodynamics, i.e. stroke volume and pulse transit time. Approach: First, the feasibility of localizing small non-conductive objects within a saline phantom model was evaluated. Second, this result was utilized for the detection of the aorta by EIT in ten anesthetized pigs in with comparison to thoracic computer tomography (CT)...
January 19, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/29342097/time-domain-near-infrared-spectroscopy-device-for-monitoring-muscle-oxidative-metabolism-custom-probe-and-in-vivo-applications
#3
Rebecca Re, Ileana Pirovano, Davide Contini, Lorenzo Spinelli, Alessandro Torricelli
Measurement of muscle oxidative metabolism is of interest for monitoring the training status in athletes and the rehabilitation process in patients. Time domain near infrared spectroscopy (TD NIRS) is an optical technique that allows the non-invasive measurement of the hemodynamic parameters in muscular tissue: concentrations of oxy- and deoxy-hemoglobin, total hemoglobin content, and tissue oxygen saturation. In this paper, we present a novel TD NIRS medical device for muscle oxidative metabolism. A custom-printed 3D probe, able to host optical elements for signal acquisition from muscle, was develop for TD NIRS in vivo measurements...
January 17, 2018: Sensors
https://www.readbyqxmd.com/read/29340539/the-spectrum-of-cardiovascular-effects-of-dobutamine-from-healthy-subjects-to-septic-shock-patients
#4
Arnaldo Dubin, Bernardo Lattanzio, Luis Gatti
Dobutamine is the inotrope most commonly used in septic shock patients to increase cardiac output and correct hypoperfusion. Although some experimental and clinical studies have shown that dobutamine can improve systemic and regional hemodynamics, other research has found that its effects are heterogenous and unpredictable. In this review, we analyze the pharmacodynamic properties of dobutamine and its physiologic effects. Our goal is to show that the effects of dobutamine might differ between healthy subjects, in experimental and clinical cardiac failure, in animal models and in patients with septic shock...
October 2017: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/29339923/an-acute-bout-of-housework-activities-has-beneficial-effects-on-executive-function
#5
Kenji Tsuchiya, Shinichi Mitsui, Ryuji Fukuyama, Noriki Yamaya, Takaaki Fujita, Kaori Shimoda, Fusae Tozato
Purpose: Although acute bouts of exercise reportedly have beneficial effects on executive function, inactive people may find it difficult to start exercising. In this study, we focused on housework activities (HAs) that generate a sense of accomplishment and require a mild intensity of physical activity. We examined the impact of an acute bout of HA on executive function and oxygenated hemoglobin (oxy-Hb) flow to related cortical regions. Materials and methods: Twenty-five participants (age, 18-21 years; mean, 19...
2018: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29338148/novel-applications-of-bedside-monitoring-to-plumb-patient-hemodynamic-state-and-response-to-therapy
#6
Fabio Guarracino, Pietro Bertini, Michael R Pinsky
Hemodynamic monitoring is essential during the treatment of the critically ill in order to address the hemodynamic alterations and assess the response to treatment. Traditionally classified causes of shock and underlying pathophysiological mechanisms are often neglected by resuscitative strategies included in the guidelines. Most of hemodynamic management focuses on the ability to early recognise patients susceptible to increase cardiac output (CO) and mean arterial pressure (MAP) after a defined fluid challenge by eliciting Starling's law of the heart, and less is known of the ones presenting in shock and not volume responsive...
January 16, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29336403/superior-vena-cava-clamping-during-thoracic-surgery-implications-for-the-anesthesiologist
#7
Monish S Raut, Swetanka Das, Rohitash Sharma, Elvin Daniel, Amit Motihar, Arvind Verma, Sibashankar Kar, Arun Maheshwari, Ganesh Shivnani, Arvind Kumar
Resection and reconstruction of the SVC is a challenging Intraoperative situation owing to the potential complications after clamping a patent vessel. Hemodynamic imbalance and neurological effects of SVC clamping can be life threatening. These complications can be prevented by careful intraoperative monitoring and management. Anaesthesiologist must be aware of different options to manage such challenging situations.
January 2018: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/29331957/mitral-valve-anatomic-predictors-of-hemodynamic-success-with-transcatheter-mitral-valve-repair
#8
Jeremy J Thaden, Joseph F Malouf, Vuyisile T Nkomo, Sorin V Pislaru, David R Holmes, Guy S Reeder, Charanjit S Rihal, Mackram F Eleid
BACKGROUND: Mitral regurgitation is a heterogeneous disease. Determining which patients derive optimal outcomes from transcatheter edge-to-edge mitral valve repair (TMVR) remains challenging. We sought to determine whether baseline mitral valve anatomic characteristics are predictive of left atrial pressure (LAP) changes during TMVR with MitraClip. METHODS AND RESULTS: Consecutive patients with severe mitral regurgitation undergoing TMVR (n=112) underwent continuous intraprocedural LAP monitoring and retrospective echocardiographic analysis for specific mitral anatomic characteristics...
January 13, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29330874/safety-of-high-current-stimulation-for-intermittent-intraoperative-neural-monitoring-in-thyroid-surgery-a-porcine-model
#9
I-Cheng Lu, Pi-Ying Chang, Gregory W Randolph, Hsiu-Ya Chen, Kuang-Yi Tseng, Yi-Chu Lin, Feng-Yu Chiang, Che-Wei Wu
OBJECTIVES: During monitored thyroidectomy, displacement of the recurrent laryngeal nerve (RLN) or vagus nerve (VN) in some complicated cases can increase the risk of injury. Although increasing the stimulus current can facilitate nerve mapping and localization, the safety of a high-current stimulus remains unknown. Therefore, this study evaluated the safety of a high-current stimulus in a porcine model. METHODS: Short-duration (1 minute), high-current (3, 5, 10, 15, 20, 25, and 30 mA at 4Hz) stimulus pulses were repeatedly applied to the RLN or VN in six anesthetized piglets...
January 13, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29330639/changes-in-tissue-and-cerebral-oxygenation-following-spinal-anesthesia-in-infants-a-prospective-study
#10
Alexander B Froyshteter, Dmitry Tumin, Emmett E Whitaker, David P Martin, Mumin Hakim, Hina Walia, Tarun Bhalla, Joseph D Tobias
Use of spinal anesthesia (SA) in children may address concerns about potential neurocognitive effects of general anesthesia. We used near-infrared spectroscopy (NIRS) to assess the effects of SA on cerebral and tissue oxygenation in 19 patients aged 7 ± 3 months. Prior to SA placement, NIRS monitors were placed on the forehead (cerebral) and the thigh (tissue). Intraoperative cerebral and tissue saturation were 73 ± 7 and 80 ± 11%, respectively, before SA placement. NIRS measurements were monitored every minute for 30 min after SA placement and modeled using mixed-effects linear regression...
January 12, 2018: Journal of Anesthesia
https://www.readbyqxmd.com/read/29330589/impact-of-valve-less-vs-standard-insufflation-on-pneumoperitoneum-volume-inflammation-and-peritoneal-physiology-in-a-laparoscopic-sigmoid-resection-experimental-model
#11
Michele Diana, Eric Noll, Andras Legnèr, Seong-Ho Kong, Yu-Yin Liu, Luigi Schiraldi, Francesco Marchegiani, Jordan Bano, Bernard Geny, Anne-Laure Charles, Bernard Dallemagne, Véronique Lindner, Didier Mutter, Pierre Diemunsch, Jacques Marescaux
BACKGROUND: Standard insufflators compensate for intra-abdominal pressure variations with pressure spikes. Our aim was to evaluate the impact of a stable, low-pressure pneumoperitoneum induced by a valve-less insufflator, on working space, hemodynamics, inflammation, and peritoneal physiology, in a model of laparoscopic sigmoid resection. MATERIALS AND METHODS: Twelve pigs (47 ± 3.3 kg) were equipped for invasive hemodynamic monitoring and randomly assigned to Standard (n = 6) vs...
January 12, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29328980/consequence-of-intraventricular-hemorrhage-on-neurovascular-coupling-evoked-by-speech-syllables-in-preterm-neonates
#12
Mahdi Mahmoudzadeh, Ghislaine Dehaene-Lambertz, Guy Kongolo, Marc Fournier, Sabrina Goudjil, Fabrice Wallois
Intraventricular Hemorrhage (IVH) is the leading cause of neurological and cognitive impairment in preterm neonates with an incidence that increases with increasing prematurity. In the present study, we tested how preterm neonates with IVH react to external stimulation (i.e. speech syllables). We compared their neural responses measured by electroencephalography (EEG), and hemodynamic responses measured by functional near-infrared spectroscopy (fNIRS), with those of healthy preterms. A neural response to syllables was observed in these infants, but did not induce a vascular response in contrast with healthy neonates...
January 5, 2018: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/29325586/high-frequency-percussive-ventilation-increases-alveolar-recruitment-in-early-acute-respiratory-distress-syndrome-an-experimental-physiological-and-ct-scan-study
#13
Thomas Godet, Matthieu Jabaudon, Raïko Blondonnet, Aymeric Tremblay, Jules Audard, Benjamin Rieu, Bruno Pereira, Jean-Marc Garcier, Emmanuel Futier, Jean-Michel Constantin
BACKGROUND: High frequency percussive ventilation (HFPV) combines diffusive (high frequency mini-bursts) and convective ventilation patterns. Benefits include enhanced oxygenation and hemodynamics, and alveolar recruitment, while providing hypothetic lung-protective ventilation. No study has investigated HFPV-induced changes in lung aeration in patients with early acute respiratory distress syndrome (ARDS). METHODS: Eight patients with early non-focal ARDS were enrolled and five swine with early non-focal ARDS were studied in prospective computed tomography (CT) scan and animal studies, in a university-hospital tertiary ICU and an animal laboratory...
January 11, 2018: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29324491/validation-of-a-second-generation-near-infrared-spectroscopy-monitor-in-children-with-congenital-heart-disease
#14
Viviane G Nasr, Lisa T Bergersen, Hung-Mo Lin, Paul B Benni, Rachel S Bernier, Michelle E Anderson, Barry D Kussman
BACKGROUND: Cerebral oximetry using near-infrared spectroscopy is a noninvasive optical technology to detect cerebral hypoxia-ischemia and develop interventions to prevent and ameliorate hypoxic brain injury. Cerebral oximeters are calibrated and validated by comparison of the near-infrared spectroscopy-measured cerebral O2 saturation (SctO2) to a "field" or reference O2 saturation (REF CX) calculated as a weighted average from arterial and jugular bulb oxygen saturations. In this study, we calibrated and validated the second-generation, 5 wavelength, FORE-SIGHT Elite with the medium sensor (source-detector separation 12 and 40 mm) for measurement of SctO2 in children with congenital heart disease...
January 9, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29321410/successful-management-of-pregnancy-in-a-patient-with-systemic-lupus-erythematosus-associated-pulmonary-arterial-hypertension
#15
Akio Kawabe, Kazuhisa Nakano, Yukiyo Aiko, Satoshi Aramaki, Takeshi Onoue, Dan Okura, Yoshiya Tanaka
Pregnancy in women with systemic lupus erythematosus (SLE)-associated pulmonary arterial hypertension (PAH) remains a high risk. We successfully managed a pregnancy in a patient with SLE-PAH. A 31-year-old pregnant woman with SLE-PAH had worsening PAH and SLE flare-up during pregnancy and a sudden increase in pulmonary arterial pressure after delivery. SLE-PAH was controlled by continuous intravenous epoprostenol and inhaled nitric oxide therapy combined with high-dose corticosteroids under close hemodynamic monitoring...
January 11, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29318860/-effect-of-transcutaneous-acupoint-electrical-stimulation-on-hemodynamic-fluctuation-caused-by-loosing-tourniquet-in-elderly-patients-undergoing-knee-joint-replacement
#16
Han-Sheng Liang, Yi Feng
OBJECTIVE: To observe the effect of transcutaneous acupoint electrical stimulation (TAES) on hemodynamic fluctuation caused by loosing tourniquet in the elderly patients undergoing knee joint replacement. METHODS: A total of 60 ASA (America Society Anesthesiologist) I or II elderly patients for elective knee joint replacement surgery were randomly divided into control group (30 cases) and TAES group (30 cases). Patients of both groups were treated by intravenous anesthesia, and monitored with bispectral index (BIS, between 45-60) for anesthesia depth, stroke volume variation (SVV) for fluid management, mean arterial pressure (MAP) and cardiac index (CI) for hemodynamic fluctuation evaluation, and with analgesia nociception index (ANI, between 50-70) for remifentanil dosage adjustment...
December 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29318792/hemodynamic-effects-on-systemic-blood-flow-and-ductal-shunting-flow-after-loading-dose-of-intravenous-caffeine-in-preterm-infants-according-to-the-patency-of-ductus-arteriosus
#17
Jihye Hwang, Yu Seon Kim, Jeong Hee Shin, Byung Min Choi
BACKGROUND: In preterm infants, caffeine citrate is used to stimulate breathing before they are weaned from mechanical ventilation and to reduce the frequency of apnea. In recent studies, effects of caffeine on the cardiovascular system have been emphasized in preterm infants with patent ductus arteriosus (PDA). METHODS: This study aimed to assess the short-term hemodynamic effects on systemic blood flow and ductal shunting flow after loading standard doses of intravenous caffeine in preterm infants...
January 22, 2018: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29311754/correlation-between-cerebral-hemodynamic-and-perfusion-pressure-changes-in-non-human-primates
#18
A Ruesch, M A Smith, G Wollstein, I A Sigal, S Nelson, J M Kainerstorfer
The mechanism that maintains a stable blood flow in the brain despite changes in cerebral perfusion pressure (CPP), and therefore guaranties a constant supply of oxygen and nutrients to the neurons, is known as cerebral autoregulation (CA). In a certain range of CPP, blood flow is mediated by a vasomotor adjustment in vascular resistance through dilation of blood vessels. CA is known to be impaired in diseases like traumatic brain injury, Parkinson's disease, stroke, hydrocephalus and others. If CA is impaired, blood flow and pressure changes are coupled and the oxygen supply might be unstable...
February 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/29310559/arrhythmias-in-children-in-early-postoperative-period-after-cardiac-surgery
#19
Manoj Kumar Sahu, Anupam Das, Bharat Siddharth, Sachin Talwar, Sarvesh Pal Singh, Atul Abraham, Arin Choudhury
BACKGROUND: Postoperative arrhythmias are a known complication after cardiac surgical repairs for congenital heart disease. METHODS: Data were reviewed pertaining to incidence, diagnosis, potential risk factors, and management of postoperative arrhythmias in 369 consecutive patients under 18 years of age, undergoing elective open heart surgery. All children were admitted to the intensive care unit and continuous electrocardiographic monitoring was performed. Patient factors such as Aristotle Basic Complexity Score, total surgical duration, hypotension, tachycardia, serum lactate level, and inotropic score were analyzed...
January 2018: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/29310415/cisplatin-induced-sudden-cardiac-death-with-hemodynamic-collapse-a-severe-adverse-drug-reaction-case-report
#20
Silvijus Abramavicius, Marius Zemaitis, Vidas Pilvinis, Edmundas Kadusevicius
RATIONALE: Cisplatin is responsible for a significant percentage of adverse drug reactions (ADRs) in oncology setting. A great proportion of cisplatin-induced severe adverse events are difficult to foresee, and giving premedication does not always prevent the occurrence of such events. PATIENT CONCERNS: A 53-year-old woman with progressive T4 N0 M0 stage IV pleural mesothelioma experienced cardiac arrest with hemodynamic collapse after cisplatin and pemetrexed chemotherapy administration...
December 2017: Medicine (Baltimore)
keyword
keyword
2316
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"