J Clin Monit Comput - Radial-femoral concordance in time and frequency domain-based estimates of systemic arterial respiratory variation.

Tópicos

{ blood(1257) pressur(1144) flow(957) }
{ signal(2180) analysi(812) frequenc(800) }
{ error(1145) method(1030) estim(1020) }
{ bind(1733) structur(1185) ligand(1036) }
{ group(2977) signific(1463) compar(1072) }
{ data(1737) use(1416) pattern(1282) }
{ measur(2081) correl(1212) valu(896) }
{ age(1611) year(1155) adult(843) }
{ model(2341) predict(2261) use(1141) }
{ perform(999) metric(946) measur(919) }
{ studi(1119) effect(1106) posit(819) }
{ use(2086) technolog(871) perceiv(783) }
{ inform(2794) health(2639) internet(1427) }
{ spatial(1525) area(1432) region(1030) }
{ state(1844) use(1261) util(961) }
{ patient(2837) hospit(1953) medic(668) }
{ cancer(2502) breast(956) screen(824) }
{ model(3404) distribut(989) bayesian(671) }
{ treatment(1704) effect(941) patient(846) }
{ framework(1458) process(801) describ(734) }
{ problem(2511) optim(1539) algorithm(950) }
{ model(2220) cell(1177) simul(1124) }
{ care(1570) inform(1187) nurs(1089) }
{ general(901) number(790) one(736) }
{ method(984) reconstruct(947) comput(926) }
{ decis(3086) make(1611) patient(1517) }
{ can(774) often(719) complex(702) }
{ imag(1947) propos(1133) code(1026) }
{ system(1976) rule(880) can(841) }
{ imag(1057) registr(996) error(939) }
{ sequenc(1873) structur(1644) protein(1328) }
{ method(1219) similar(1157) match(930) }
{ featur(3375) classif(2383) classifi(1994) }
{ imag(2830) propos(1344) filter(1198) }
{ network(2748) neural(1063) input(814) }
{ imag(2675) segment(2577) method(1081) }
{ patient(2315) diseas(1263) diabet(1191) }
{ take(945) account(800) differ(722) }
{ studi(2440) review(1878) systemat(933) }
{ motion(1329) object(1292) video(1091) }
{ assess(1506) score(1403) qualiti(1306) }
{ surgeri(1148) surgic(1085) robot(1054) }
{ chang(1828) time(1643) increas(1301) }
{ learn(2355) train(1041) set(1003) }
{ concept(1167) ontolog(924) domain(897) }
{ clinic(1479) use(1117) guidelin(835) }
{ algorithm(1844) comput(1787) effici(935) }
{ extract(1171) text(1153) clinic(932) }
{ method(1557) propos(1049) approach(1037) }
{ data(1714) softwar(1251) tool(1186) }
{ design(1359) user(1324) use(1319) }
{ control(1307) perform(991) simul(935) }
{ search(2224) databas(1162) retriev(909) }
{ featur(1941) imag(1645) propos(1176) }
{ case(1353) use(1143) diagnosi(1136) }
{ howev(809) still(633) remain(590) }
{ data(3963) clinic(1234) research(1004) }
{ studi(1410) differ(1259) use(1210) }
{ risk(3053) factor(974) diseas(938) }
{ research(1085) discuss(1038) issu(1018) }
{ system(1050) medic(1026) inform(1018) }
{ import(1318) role(1303) understand(862) }
{ visual(1396) interact(850) tool(830) }
{ compound(1573) activ(1297) structur(1058) }
{ perform(1367) use(1326) method(1137) }
{ record(1888) medic(1808) patient(1693) }
{ health(3367) inform(1360) care(1135) }
{ model(3480) simul(1196) paramet(876) }
{ monitor(1329) mobil(1314) devic(1160) }
{ ehr(2073) health(1662) electron(1139) }
{ research(1218) medic(880) student(794) }
{ model(2656) set(1616) predict(1553) }
{ data(2317) use(1299) case(1017) }
{ medic(1828) order(1363) alert(1069) }
{ cost(1906) reduc(1198) effect(832) }
{ sampl(1606) size(1419) use(1276) }
{ gene(2352) biolog(1181) express(1162) }
{ data(3008) multipl(1320) sourc(1022) }
{ first(2504) two(1366) second(1323) }
{ intervent(3218) particip(2042) group(1664) }
{ activ(1138) subject(705) human(624) }
{ time(1939) patient(1703) rate(768) }
{ patient(1821) servic(1111) care(1106) }
{ can(981) present(881) function(850) }
{ analysi(2126) use(1163) compon(1037) }
{ health(1844) social(1437) communiti(874) }
{ structur(1116) can(940) graph(676) }
{ high(1669) rate(1365) level(1280) }
{ use(976) code(926) identifi(902) }
{ use(1733) differ(960) four(931) }
{ drug(1928) target(777) effect(648) }
{ result(1111) use(1088) new(759) }
{ implement(1333) system(1263) develop(1122) }
{ survey(1388) particip(1329) question(1065) }
{ estim(2440) model(1874) function(577) }
{ process(1125) use(805) approach(778) }
{ activ(1452) weight(1219) physic(1104) }
{ method(1969) cluster(1462) data(1082) }
{ method(2212) result(1239) propos(1039) }
{ detect(2391) sensit(1101) algorithm(908) }

Resumo

Commonly used arterial respiratory variation metrics are based on mathematical analysis of arterial waveforms in the time domain. Because the shape of the arterial waveform is dependent on the site at which it is measured, we hypothesized that analysis of the arterial waveform in the frequency domain might provide a relatively site-independent means of measuring arterial respiratory variation. Radial and femoral arterial blood pressures were measured in nineteen patients undergoing liver transplantation. Systolic pressure variation (SPV), pulse pressure variation (PPV), area under the curve variation (AUCV), and mean arterial pressure variation (MAPV) at radial and femoral sites were calculated off-line. Two metrics, "Spectral Peak Ratio" (SPeR) and "Spectral Power Ratio" (SPoR) based on ratios of the spectral peak and spectral area (power) at the respiratory and cardiac frequencies, were calculated at both radial and femoral sites. Variance among radial-femoral differences was compared and correlation coefficients describing the relationship between respiratory variation at the radial and femoral sites were developed. The variance in radial-femoral differences were significantly different (p?<?0.001). The correlation between radial and femoral estimates of respiratory variation were 0.746, 0.658, 0.858, 0.882, 0.941, and 0.925 for SPV, PPV, AUCV, MAPV, SPeR, and SPoR, respectively. Assuming a PPV treatment threshold of 12?% (or equivalent), differences in treatment decisions based on radial or femoral estimates would arise in 12, 14, 5.4, 5.7, 4.8, and 5.5?% of minutes for SPV, PPV, AUCV, MAPV, spectral peak ratio, and spectral power ratio, respectively. As compared to frequency domain-based estimates of respiratory variation, SPV and PPV are relatively dependent on the anatomic site at which they are measured. Spectral peak and power ratios are relatively site-independent means of measuring respiratory variation, and may offer a useful alternative to time domain-based techniques.

Resumo Limpo

common use arteri respiratori variat metric base mathemat analysi arteri waveform time domain shape arteri waveform depend site measur hypothes analysi arteri waveform frequenc domain might provid relat siteindepend mean measur arteri respiratori variat radial femor arteri blood pressur measur nineteen patient undergo liver transplant systol pressur variat spv puls pressur variat ppv area curv variat aucv mean arteri pressur variat mapv radial femor site calcul offlin two metric spectral peak ratio sper spectral power ratio spor base ratio spectral peak spectral area power respiratori cardiac frequenc calcul radial femor site varianc among radialfemor differ compar correl coeffici describ relationship respiratori variat radial femor site develop varianc radialfemor differ signific differ p correl radial femor estim respiratori variat spv ppv aucv mapv sper spor respect assum ppv treatment threshold equival differ treatment decis base radial femor estim aris minut spv ppv aucv mapv spectral peak ratio spectral power ratio respect compar frequenc domainbas estim respiratori variat spv ppv relat depend anatom site measur spectral peak power ratio relat siteindepend mean measur respiratori variat may offer use altern time domainbas techniqu

Resumos Similares

Med Biol Eng Comput - Effect of respiration on Korotkoff sounds and oscillometric cuff pressure pulses during blood pressure measurement. ( 0,912665474340398 )
J Clin Monit Comput - Impact of central hypovolemia on photoplethysmographic waveform parameters in healthy volunteers part 2: frequency domain analysis. ( 0,902458530369765 )
J Clin Monit Comput - Validation of the new Complior sensor to record pressure signals non-invasively. ( 0,880368629426936 )
J Clin Monit Comput - Capability of a new paediatric oesophageal Doppler monitor to detect changes in cardiac output during testing of external pacemakers after cardiac surgery. ( 0,865104820522926 )
J Clin Monit Comput - A comparative study of pulse rate variability and heart rate variability in healthy subjects. ( 0,860440375109536 )
J Clin Monit Comput - Heart sounds analysis via esophageal stethoscope system in beagles. ( 0,851274400099188 )
J Clin Monit Comput - Continuous minimally invasive peri-operative monitoring of cardiac output by pulmonary capnotracking: comparison with thermodilution and transesophageal echocardiography. ( 0,848411472612818 )
J Clin Monit Comput - Hemodynamic volumetry using transpulmonary ultrasound dilution (TPUD) technology in a neonatal animal model. ( 0,848251403627751 )
J Clin Monit Comput - Assessment of cerebral oxygenation using near infrared spectroscopy during isovolemic hemodilution in pediatric patients. ( 0,841432174585416 )
Med Biol Eng Comput - Model-based correction of the influence of body position on continuous segmental and hand-to-foot bioimpedance measurements. ( 0,841302704476661 )
J Clin Monit Comput - Impact of central hypovolemia on photoplethysmographic waveform parameters in healthy volunteers. Part 1: time domain analysis. ( 0,839496425821139 )
J Clin Monit Comput - Changes in R-Wave amplitude in DII lead is less sensitive than pulse pressure variation to detect changes in stroke volume after fluid challenge in ICU patients postoperatively to cardiac surgery. ( 0,83865703485979 )
J Clin Monit Comput - Evaluation of mean systemic filling pressure from pulse contour cardiac output and central venous pressure. ( 0,838483659560324 )
J Clin Monit Comput - Comparison of cardiac output determined by bioimpedance and bioreactance methods at rest and during exercise. ( 0,838438316198553 )
Med Biol Eng Comput - Determinants of vascular and cardiac baroreflex sensitivity values in a random population sample. ( 0,836175710168661 )
Med Biol Eng Comput - Monitoring respiration in wheezy preschool children by pulse oximetry plethysmogram analysis. ( 0,834348986080242 )
J Clin Monit Comput - Assessment of the effect of rapid crystalloid infusion on stroke volume variation and pleth variability index after a preoperative fast. ( 0,833589358984911 )
Med Biol Eng Comput - Assessment of dynamic cerebral autoregulation and cerebral carbon dioxide reactivity during normothermic cardiopulmonary bypass. ( 0,829419954364835 )
Comput Math Methods Med - Mathematical analysis of non-Newtonian blood flow in stenosis narrow arteries. ( 0,828293350499103 )
J Clin Monit Comput - Transthoracic electrical bioimpedence cardiac output: comparison with multigated equillibrium radionuclide cardiography. ( 0,824916913401251 )
J Clin Monit Comput - Pulmonary artery pulsatility is the main cause of cardiogenic oscillations. ( 0,824450961401042 )
J Clin Monit Comput - Variations in the pre-ejection period induced by deep breathing do not predict the hemodynamic response to early haemorrhage in healthy volunteers. ( 0,822895955414096 )
J Clin Monit Comput - Noninvasive continuous hemodynamic monitoring. ( 0,821755482193734 )
J Clin Monit Comput - Combination of continuous pulse pressure variation monitoring and cardiac filling pressure to predict fluid responsiveness. ( 0,819723847539633 )
Comput Math Methods Med - Numerical study for blood flow in pulmonary arteries after repair of tetralogy of Fallot. ( 0,819437540523861 )
J Clin Monit Comput - Non-invasive cardiac output and oxygen delivery measurement in an infant with critical anemia. ( 0,815880323627945 )
J Clin Monit Comput - Decrease in pulmonary artery pressure after administration of thoracic epidural anesthesia in a patient with Marfan syndrome awaiting aortic valve replacement procedure. ( 0,815730770036114 )
Comput Math Methods Med - A new high-resolution spectral approach to noninvasively evaluate wall deformations in arteries. ( 0,815133018825263 )
J Clin Monit Comput - In-line pressure within a HOTLINE? Fluid Warmer, under various flow conditions. ( 0,81472582943444 )
J Clin Monit Comput - The use of a noninvasive hemoglobin monitor for determining fluid distribution and elimination in pediatric patients undergoing minor surgery. ( 0,81385975978034 )
Med Biol Eng Comput - Investigation of photoplethysmographic signals and blood oxygen saturation values on healthy volunteers during cuff-induced hypoperfusion using a multimode PPG/SpO2 sensor. ( 0,812917289287035 )
Med Biol Eng Comput - Arterial reservoir-excess pressure and ventricular work. ( 0,811490085054099 )
J Med Syst - Human cardiovascular model and applications. ( 0,809674563454922 )
Comput Math Methods Med - Simulation of exercise-induced syncope in a heart model with severe aortic valve stenosis. ( 0,807267917924387 )
Comput. Biol. Med. - Biomechanical behaviors of curved artery with flexible wall: a numerical study using fluid-structure interaction method. ( 0,806940715585876 )
J Clin Monit Comput - Power spectral analysis of plethysmographic pulse waveform in pregnant women. ( 0,80618117029601 )
Comput Math Methods Med - Plasma volume expansion resulting from intravenous glucose tolerance test. ( 0,806110143943818 )
Comput. Biol. Med. - The hemodynamic alterations induced by the vascular angular deformation in stent-assisted coiling of bifurcation aneurysms. ( 0,805295373468228 )
Med Biol Eng Comput - A coupled flow-acoustic computational study of bruits from a modeled stenosed artery. ( 0,804436450025998 )
J Clin Monit Comput - Transesophageal echocardiography and intraoperative phlebotomy during surgical repair of coarctation of aorta in a patient with atrial septal defect, moderately severe mitral regurgitation and severe pulmonary hypertension. ( 0,803434434853906 )
Comput Methods Programs Biomed - In silico study of the haemodynamic effects induced by mechanical ventilation and biventricular pacemaker. ( 0,798946920694866 )
J Clin Monit Comput - Pulse oximeter plethysmograph variation and its relationship to the arterial waveform in mechanically ventilated children. ( 0,798641481964105 )
Med Biol Eng Comput - Characterization of skin dermis microcirculation in flow-mediated dilation using optical sensor with pressurization mechanism. ( 0,795029631246603 )
J Clin Monit Comput - The relationship between the area of peripherally-derived pressure volume loops and systemic vascular resistance. ( 0,794895177578362 )
Med Biol Eng Comput - Enhanced phase synchronization of blood flow oscillations between heated and adjacent non-heated sacral skin. ( 0,793932825154036 )
J Clin Monit Comput - Impact of skin incision on the pleth variability index. ( 0,793690458673504 )
Med Biol Eng Comput - Deriving respiration from photoplethysmographic pulse width. ( 0,79215998172723 )
Comput Math Methods Med - Investigating properties of the cardiovascular system using innovative analysis algorithms based on ensemble empirical mode decomposition. ( 0,791951120545729 )
J Clin Monit Comput - Fluid responsiveness is about stroke volume, and not pulse pressure Yogi: the power of Doppler fluid management and cardiovascular monitoring. ( 0,789225486023428 )
J Clin Monit Comput - Arterial pressure waveform derived cardiac output FloTrac/Vigileo system (third generation software): comparison of two monitoring sites with the thermodilution cardiac output. ( 0,78905801820721 )
J Clin Monit Comput - Respiratory and non-respiratory sinus arrhythmia: implications for heart rate variability. ( 0,788756881438799 )
Comput Methods Programs Biomed - Measurements of the left atrium and pulmonary veins for analysis of reverse structural remodeling following cardiac ablation therapy. ( 0,787522761397294 )
J Clin Monit Comput - Additional hemodynamic measurements with an esophageal Doppler monitor: a preliminary report of compliance, force, kinetic energy, and afterload in the clinical setting. ( 0,785305045787501 )
J Clin Monit Comput - The analysis of transesophageal oxygen saturation photoplethysmography from different signal sources. ( 0,78218936311997 )
Med Biol Eng Comput - Coronary-aortic interaction during ventricular isovolumic contraction. ( 0,780426155032907 )
J Clin Monit Comput - Continuous non-invasive monitoring improves blood pressure stability in upright position: randomized controlled trial. ( 0,780379044118092 )
J Clin Monit Comput - Pleth variability index-directed fluid management in abdominal surgery under combined general and epidural anesthesia. ( 0,780347877951356 )
Med Biol Eng Comput - Cardiac oxygen supply is compromised during the night in hypertensive patients. ( 0,780194453305357 )
J Clin Monit Comput - Cardiopulmonary interactions and volume status assessment. ( 0,780056730831159 )
J Clin Monit Comput - Tako-tsubo cardiomyopathy and microcirculation. ( 0,778828459128199 )
J Clin Monit Comput - The changes of pulmonary blood flow in non-ventilated lung during one lung ventilation. ( 0,778113112170354 )
Comput. Biol. Med. - Modeling of heart sound morphology and analysis of the morphological variations induced by respiration. ( 0,77567463657742 )
J Clin Monit Comput - The effect of endotracheal tube cuff pressure change during gynecological laparoscopic surgery on postoperative sore throat: a control study. ( 0,772405061806509 )
J Clin Monit Comput - Reference values for volumetric capnography-derived non-invasive parameters in healthy individuals. ( 0,771765123892833 )
J Clin Monit Comput - The effects of cardiac output and pulmonary arterial hypertension on volumetric capnography derived-variables during normoxia and hypoxia. ( 0,770919369349374 )
J Clin Monit Comput - Continuous real time endotracheal tube cuff pressure waveform. ( 0,769261242355125 )
Med Biol Eng Comput - Aortic pressure wave reconstruction during exercise is improved by adaptive filtering: a pilot study. ( 0,768180316166548 )
Med Biol Eng Comput - Monitoring intracellular, interstitial, and intravascular volume changes during fluid management procedures. ( 0,765102151690223 )
J Clin Monit Comput - Developing an algorithm for pulse oximetry derived respiratory rate (RR(oxi)): a healthy volunteer study. ( 0,765056596285577 )
J Clin Monit Comput - The use of regional cerebral oximetry monitoring during controlled hypotension: a case series. ( 0,764510425354809 )
Comput Methods Programs Biomed - Assessment of ventricular contractility and ventricular-arterial coupling with a model-based sensor. ( 0,764268726399767 )
J Clin Monit Comput - Arterial line for monitoring SpO2 in patients with ischemic peripheries. ( 0,759631821860583 )
Comput Math Methods Med - Evaluating the hemodynamical response of a cardiovascular system under support of a continuous flow left ventricular assist device via numerical modeling and simulations. ( 0,756700181864471 )
Comput Math Methods Med - Evaluation of a model-based hemodynamic monitoring method in a porcine study of septic shock. ( 0,756616078633218 )
IEEE J Biomed Health Inform - Experimental investigation of the influence of the aortic stiffness on hemodynamics in the ascending aorta. ( 0,756230248905974 )
Comput Math Methods Med - Mathematical modeling of radiofrequency ablation for varicose veins. ( 0,75562415688805 )
J Clin Monit Comput - Bench test assessment of mainstream capnography during high frequency oscillatory ventilation. ( 0,753303502196167 )
Comput. Biol. Med. - A semi-automated computer tool for the analysis of retinal vessel diameter dynamics. ( 0,753231296907307 )
J Clin Monit Comput - Analysis of plethysmographic waveform changes induced by beach chair positioning under general anesthesia. ( 0,7530414623128 )
Comput. Biol. Med. - Effect of CPAP therapy on daytime cardiovascular regulations in patients with obstructive sleep apnea. ( 0,752319543514722 )
Comput Math Methods Med - Simulation of the Frank-Starling Law of the Heart. ( 0,751386819074674 )
J Clin Monit Comput - Noninvasive cardiac output monitoring during exercise testing: Nexfin pulse contour analysis compared to an inert gas rebreathing method and respired gas analysis. ( 0,750390181301322 )
Med Biol Eng Comput - Mechanical behaviour and rupture of normal and pathological human ascending aortic wall. ( 0,748477630770953 )
J Clin Monit Comput - Cardiac output measured by uncalibrated arterial pressure waveform analysis by recently released software version 3.02 versus thermodilution in septic shock. ( 0,747902071069112 )
J Clin Monit Comput - How do changes in exhaled CO2 measure changes in cardiac output? A numerical analysis model. ( 0,746102080404939 )
Med Biol Eng Comput - The effect of aortic wall and aortic leaflet stiffening on coronary hemodynamic: a fluid-structure interaction study. ( 0,745561119808667 )
Med Biol Eng Comput - Computational model for estimating the short- and long-term cardiac response to arteriovenous fistula creation for hemodialysis. ( 0,745488963067151 )
J Clin Monit Comput - The effects of low-dose ketamine on the analgesia nociception index (ANI) measured with the novel PhysioDoloris? analgesia monitor: a pilot study. ( 0,744968412561911 )
J Clin Monit Comput - Multimodal noninvasive monitoring of soft tissue wound healing. ( 0,744840990126621 )
Wiley Interdiscip Rev Syst Biol Med - Integration of cardiovascular regulation by the blood/endothelium cell-free layer. ( 0,744285037946257 )
Med Biol Eng Comput - Non-invasive monitoring of central blood pressure by electrical impedance tomography: first experimental evidence. ( 0,74404560636334 )
J Clin Monit Comput - Radial artery cannulation decreases the distal arterial blood flow measured by power Doppler ultrasound. ( 0,744025153722472 )
Comput Math Methods Med - Influence of distal resistance and proximal stiffness on hemodynamics and RV afterload in progression and treatments of pulmonary hypertension: a computational study with validation using animal models. ( 0,743456134234647 )
Comput. Biol. Med. - Numerical investigation of blood flow in three-dimensional porcine left anterior descending artery with various stenoses. ( 0,742794356469603 )
J Clin Monit Comput - Reliability of a new 4th generation FloTrac algorithm to track cardiac output changes in patients receiving phenylephrine. ( 0,74266929121624 )
Comput Math Methods Med - Impact of competitive flow on hemodynamics in coronary surgery: numerical study of ITA-LAD model. ( 0,742384142813507 )
Comput Methods Programs Biomed - Impact of pulmonary vascular stiffness and vasodilator treatment in pediatric pulmonary hypertension: 21 patient-specific fluid-structure interaction studies. ( 0,741360226500185 )
Med Biol Eng Comput - Application of multiscale entropy in arterial waveform contour analysis in healthy and diabetic subjects. ( 0,740250707132209 )
J Clin Monit Comput - Continuous measurement of cardiac output with the electrical velocimetry method in patients under spinal anesthesia for cesarean delivery. ( 0,740010312307298 )
J Med Syst - Modeling and simulation of right ventricular volume measurement system during right heart catheterization. ( 0,739523456468573 )