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non invasive hemodynamic monitoring

Torsten Schröder
Basic haemodynamic monitoring is an essential part of the anaesthesia work place. This includes Monitoring of ECG, blood pressure and pulse oximetry. For early assessement of perioperative complications every patient should have a basic haemodynamic monitoring, independant of current health status or the type of anaesthesia applied. Knowledge of function, principles and limitations ais necessary for proper interpretation of the measured values. Here, we describe the function and application of ECG, non - invasive intermittent blood pressure and pulse oximetry in the perioperative setting...
October 2016: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
C Raspé, L Flöther, R Schneider, M Bucher, P Piso
Due to the significantly improved outcome and quality of life of patients with different tumor entities after cytoreductive surgery (CRS) and HIPEC, there is an increasing number of centers performing CRS and HIPEC procedures. As this procedure is technically challenging with potential high morbidity and mortality, respectively, institutional experience also in the anesthetic and intensive care departments is essential for optimal treatment and prevention of adverse events. Clinical pathways have to be developed to achieve also good results in more comorbid patients with border line indications and extensive surgical procedures...
September 28, 2016: European Journal of Surgical Oncology
Mei-Ling Sharon Tai, Vijay K Sharma
BACKGROUND: Vascular complications are important causes of cerebral infarction in tuberculous meningitis (TBM).Transcranial Doppler ultrasonography (TCD) is a non-invasive tool that can provide real-time information about cerebral hemodynamics. However, the literature on the role of TCD in the diagnosis or monitoring of vasculopathy associated with TBM is scarce. We explored the role of TCD in the diagnosis and monitoring of TBM-related vasculopathy of the major intracranial arteries...
2016: PloS One
János Nemcsik, Orsolya Cseprekál, András Tislér
Cardiovascular diseases are the leading causes of morbidity and mortality in industrialized countries worldwide, despite highly effective preventive treatments available. As a difference continues to exist between the estimated and true number of events, further improvement of risk stratification is an essential part of cardiovascular research.Among hypertensive patients measurement of arterial stiffness parameters, like carotid-femoral pulse wave velocity (cfPWV) or brachial-ankle pulse wave velocity (baPWV) can contribute to the identification of high-risk subpopulation of patients...
October 9, 2016: Advances in Experimental Medicine and Biology
Jing Men, Yongyang Huang, Jitendra Solanki, Xianxu Zeng, Aneesh Alex, Jason Jerwick, Zhan Zhang, Rudolph E Tanzi, Airong Li, Chao Zhou
Optical coherence tomography (OCT) is a promising research tool for brain imaging and developmental biology. Serving as a three-dimensional optical biopsy technique, OCT provides volumetric reconstruction of brain tissues and embryonic structures with micrometer resolution and video rate imaging speed. Functional OCT enables label-free monitoring of hemodynamic and metabolic changes in the brain in vitro and in vivo in animal models. Due to its non-invasiveness nature, OCT enables longitudinal imaging of developing specimens in vivo without potential damage from surgical operation, tissue fixation and processing, and staining with exogenous contrast agents...
July 2016: IEEE Journal of Selected Topics in Quantum Electronics
David R Busch, Craig G Rusin, Wanda Miller-Hance, Kathy Kibler, Wesley B Baker, Jeffrey S Heinle, Charles D Fraser, Arjun G Yodh, Daniel J Licht, Kenneth M Brady
While survival of children with complex congenital heart defects has improved in recent years, roughly half suffer neurological deficits suspected to be related to cerebral ischemia. Here we report the first demonstration of optical diffuse correlation spectroscopy (DCS) for continuous and non-invasive monitoring of cerebral microvascular blood flow during complex human neonatal or cardiac surgery. Comparison between DCS and Doppler ultrasound flow measurements during deep hypothermia, circulatory arrest, and rewarming were in good agreement...
September 1, 2016: Biomedical Optics Express
Claudia Höhne
Options for hemodynamic and cerebral perfusion monitoring in pediatric anesthesia are limited, but it should be used to reduce the potential damage due to hypotension and reduced cerebral perfusion. Non-invasive blood pressure measurement should be used in all cases of pediatric anesthesia and near-infrared spectroscopy for risk pediatric patients. In former times measurement of non-invasive blood pressure had no priority, this is not state of the art based on current data.
September 2016: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
Sabri Soussi, Benjamin Deniau, Axelle Ferry, Charlotte Levé, Mourad Benyamina, Véronique Maurel, Maïté Chaussard, Brigitte Le Cam, Alice Blet, Maurice Mimoun, Jêrome Lambert, Marc Chaouat, Alexandre Mebazaa, Matthieu Legrand
BACKGROUND: Impact of early systemic hemodynamic alterations and fluid resuscitation on outcome in the modern burn care remains controversial. We investigate the association between acute-phase systemic hemodynamics, timing of fluid resuscitation and outcome in critically ill burn patients. METHODS: Retrospective, single-center cohort study was conducted in a university hospital. Forty critically ill burn patients with total body surface area (TBSA) burn-injured >20 % with invasive blood pressure and cardiac output monitoring (transpulmonary thermodilution technique) within 8 h from trauma were included...
December 2016: Annals of Intensive Care
R P E Boezeman, B P Becx, D A F van den Heuvel, Ç Ünlü, J A Vos, J P P M de Vries
OBJECTIVE: Near-infrared spectroscopy (NIRS) non-invasively determines tissue oxygen saturation (Sto2) in muscle tissue. Its application to monitor real time hemodynamic changes during percutaneous transluminal angioplasty (PTA) and Sto2 changes in feet 4 weeks after PTA was evaluated. METHODS: This study included 14 patients with critical limb ischemia (CLI, six patients Rutherford classification Stage IV, two patients Stage V, and six patients Stage VI). In patients with arterial ulcers, NIRS optodes were placed near the ulcer of the diseased foot (Optode 1), and at the same spot at the contralateral foot (Optode 2)...
September 7, 2016: European Journal of Vascular and Endovascular Surgery
E Mancini, C Perazzini, L Gesualdo, F Aucella, A Limido, F Scolari, S Savoldi, M Tramonti, L Corazza, M Atti, S Severi, P Bolasco, A Santoro
BACKGROUND: Intradialytic hypotension (IDH) has a dramatic impact on the main outcomes of dialysis patients. Early warning of hemodynamic worsening during dialysis would enable preventive measures to be taken. Blood oxygen saturation (SO2) is used for hemodynamic monitoring in the critical care setting and may provide useful information about IDH onset. AIM: To evaluate whether short- and medium-term variations in the SO2 signal (ST-SO2var, MT-SO2var,) during dialysis are a predictor of IDH...
August 29, 2016: Journal of Nephrology
Xi-Min He, Lin Chen, Jiang-Bin Luo, Xu-Xia Feng, Yun-Bo Zhang, Qi-Jing Chen, Xiao-Li Ji, Tian-Song Wang
OBJECTIVE: To investigate the effects of exogenous recombinant human brain natriuretic peptide (rhBNP) after primary percutaneous coronary intervention (PCI) on non-invasive hemodynamic in acute myocardial infarction patients with left ventricular failure. METHODS: A number of 96 acute myocardial infarction patients accompanied with heart failure after PCI hospitalized in the People's Hospital of Sanya during February 2012 to October 2015 were selected. They were randomly divided into the therapy group (n = 50) and control group (n = 46)...
August 2016: Asian Pacific Journal of Tropical Medicine
Anthony S McLean
Echocardiography is pivotal in the diagnosis and management of the shocked patient. Important characteristics in the setting of shock are that it is non-invasive and can be rapidly applied.In the acute situation a basic study often yields immediate results allowing for the initiation of therapy, while a follow-up advanced study brings the advantage of further refining the diagnosis and providing an in-depth hemodynamic assessment. Competency in basic critical care echocardiography is now regarded as a mandatory part of critical care training with clear guidelines available...
August 20, 2016: Critical Care: the Official Journal of the Critical Care Forum
P Boutouyrie, F Elmula, P Rebora, A Talvik, S Salerno, E Miszkowska-Nagorna, X Liuc, T Comotti, A Larstorp, M Rostrup, E Qwierblewska, M Valsecchi, S E Kjeldsen, M Viigimaa, K Narkiewicz, G Parati, S Laurent
OBJECTIVE: In the BEAUTY study we investigated whether utilizing non-invasive monitoring of hemodynamic parameters by thoracic impedance plethysmography (IHM) combined with a drug selection algorithm (DSA) compared to conventional drug selection may improve uncontrolled hypertension in European Hypertension Excellence Centres. Although the results of the BEAUTY study on ABPM were neutral (J Hypertens 2015), we investigated whether IHM-DSA could favourably influence central BP and arterial stiffness...
September 2016: Journal of Hypertension
Anna Mudoni, Francesco Caccetta, Maurizio Caroppo, Fernando Musio, Antonella Accogli, Maria Dolores Zacheo, Maria Domenica Burzo, Maurizio Gallieni, Vitale Nuzzo
A functioning vascular access is a critical requirement to improve the quality of life in hemodialysis patients, so monitoring and surveillance of vascular access play key roles in identifying all dysfunctions and reducing the huge economic cost as well as adequacy of dialysis.In our five-year experience, a study protocol has been used and improved with the help of ultrasonography.Doppler ultrasound is an excellent and sensitive modality for hemodialysis access evaluation, one of techniques employed for arteriovenous fistulae (AVF) study, not only as a preoperative tool, but also in post-operative monitoring of AVF maturation...
July 27, 2016: Journal of Vascular Access
Jennifer T Wang, William H Frishman
Heart failure (HF) affects over 5.8 million patients in the United States, and can be very costly due to the number of hospitalizations and re-hospitalizations during the final years of life. Due to the large number of hospitalizations for HF exacerbations, effective methods for preventing these occurrences are necessary. Improvements in the outpatient treatment of HF, aided by non-invasive and invasive home monitoring methods, can reduce the number of hospitalizations. Pulmonary pressure monitoring through the CardioMEMS system provides one method of hemodynamic assessment of patients...
July 25, 2016: Cardiology in Review
Marc O Fischer, Pierre G Guinot, Matthieu Biais, Yazine Mahjoub, Jihad Mallat, Emmanuel Lorne
Dynamic indices (based on cardiopulmonary interactions in mechanically ventilated patients in sinus rhythm) have been developed as simple tools for predicting fluid responsiveness in the absence of cardiac output monitoring. Although the earliest dynamic indices relied on the invasive measurement of pulse pressure variations or stroke volume variations, the most recently developed indices are based on non-invasive photoplethysmography. However, a number of confounding factors have been found to decrease the clinical value of these indices...
July 12, 2016: Minerva Anestesiologica
Jérôme Cornette, Suretha Laker, Bridget Jeffery, Hennie Lombaard, Andrie Alberts, Dimitris Rizopoulos, Jolien W Roos-Hesselink, Robert C Pattinson
INDRODUCTION: Most severe pregnancy complications are characterized by profound hemodynamic disturbances. There is a need for validated hemodynamic monitoring systems in pregnant women. Pulmonary artery catheterization (PAC) using thermodilution is the clinical gold standard for CO measurements. However this reference methods is nowadays rarely performed due to its invasive nature. Transthoracic echocardiography (TTE) allows non-invasive determination of the cardiac output (CO). We aimed to validate TTE against PAC for CO determination in pregnant women...
July 12, 2016: Ultrasound in Obstetrics & Gynecology
Sho Ohno, Yukitoshi Niiyama, Takeshi Murouchi, Michiaki Yamakage
Severe pulmonary arterial hypertension is a significant risk factor for anesthetic management in patients undergoing even non-cardiac surgery. A 64-year-old female patient with severe pulmonary arterial hypertension was scheduled to undergo inguinal hernioplasty. Preoperative systolic pulmonary arterial pressure was 115 mmHg. We selected monitored anesthesia care with 0.2-0.5 μg x kg(-1) x hr(-1) dexmedetomidine and ultrasound-guided iliohypogastric block. Thereafter, LiDCOrapid was used to acquire the hemodynamic responses during surgery...
May 2016: Masui. the Japanese Journal of Anesthesiology
Matthieu Biais, Laurent Stecken, Aurélie Martin, Stéphanie Roullet, Alice Quinart, François Sztark
Non-invasive respiratory variations in arterial pulse pressure using infrared-plethysmography (PPVCNAP) are able to predict fluid responsiveness in mechanically ventilated patients. However, they cannot be continuously monitored. The present study evaluated a new algorithm allowing continuous measurements of PPVCNAP (PPVCNAPauto) (CNSystem, Graz, Austria). Thirty-five patients undergoing vascular surgery were studied after induction of general anaesthesia. Stroke volume was measured using the Vigileo(TM)/FloTrac(TM)...
June 16, 2016: Journal of Clinical Monitoring and Computing
Pritam Sukul, Jochen K Schubert, Peter Oertel, Svend Kamysek, Khushman Taunk, Phillip Trefz, Wolfram Miekisch
Breath volatile organic compound (VOC) analysis can open a non-invasive window onto pathological and metabolic processes in the body. Decades of clinical breath-gas analysis have revealed that changes in exhaled VOC concentrations are important rather than disease specific biomarkers. As physiological parameters, such as respiratory rate or cardiac output, have profound effects on exhaled VOCs, here we investigated VOC exhalation under respiratory manoeuvres. Breath VOCs were monitored by means of real-time mass-spectrometry during conventional FEV manoeuvres in 50 healthy humans...
2016: Scientific Reports
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