J Clin Monit Comput - Power spectral analysis of plethysmographic pulse waveform in pregnant women.

Tópicos

{ signal(2180) analysi(812) frequenc(800) }
{ blood(1257) pressur(1144) flow(957) }
{ age(1611) year(1155) adult(843) }
{ medic(1828) order(1363) alert(1069) }
{ high(1669) rate(1365) level(1280) }
{ studi(1119) effect(1106) posit(819) }
{ measur(2081) correl(1212) valu(896) }
{ method(1219) similar(1157) match(930) }
{ algorithm(1844) comput(1787) effici(935) }
{ general(901) number(790) one(736) }
{ studi(1410) differ(1259) use(1210) }
{ can(774) often(719) complex(702) }
{ imag(1947) propos(1133) code(1026) }
{ motion(1329) object(1292) video(1091) }
{ framework(1458) process(801) describ(734) }
{ chang(1828) time(1643) increas(1301) }
{ research(1085) discuss(1038) issu(1018) }
{ perform(1367) use(1326) method(1137) }
{ ehr(2073) health(1662) electron(1139) }
{ state(1844) use(1261) util(961) }
{ cost(1906) reduc(1198) effect(832) }
{ can(981) present(881) function(850) }
{ method(1969) cluster(1462) data(1082) }
{ model(3404) distribut(989) bayesian(671) }
{ data(1737) use(1416) pattern(1282) }
{ inform(2794) health(2639) internet(1427) }
{ system(1976) rule(880) can(841) }
{ imag(1057) registr(996) error(939) }
{ bind(1733) structur(1185) ligand(1036) }
{ sequenc(1873) structur(1644) protein(1328) }
{ 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) }
{ assess(1506) score(1403) qualiti(1306) }
{ treatment(1704) effect(941) patient(846) }
{ surgeri(1148) surgic(1085) robot(1054) }
{ problem(2511) optim(1539) algorithm(950) }
{ error(1145) method(1030) estim(1020) }
{ learn(2355) train(1041) set(1003) }
{ concept(1167) ontolog(924) domain(897) }
{ clinic(1479) use(1117) guidelin(835) }
{ 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) }
{ model(2220) cell(1177) simul(1124) }
{ care(1570) inform(1187) nurs(1089) }
{ method(984) reconstruct(947) comput(926) }
{ 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) }
{ risk(3053) factor(974) diseas(938) }
{ perform(999) metric(946) measur(919) }
{ system(1050) medic(1026) inform(1018) }
{ import(1318) role(1303) understand(862) }
{ model(2341) predict(2261) use(1141) }
{ visual(1396) interact(850) tool(830) }
{ compound(1573) activ(1297) structur(1058) }
{ spatial(1525) area(1432) region(1030) }
{ record(1888) medic(1808) patient(1693) }
{ health(3367) inform(1360) care(1135) }
{ model(3480) simul(1196) paramet(876) }
{ monitor(1329) mobil(1314) devic(1160) }
{ research(1218) medic(880) student(794) }
{ patient(2837) hospit(1953) medic(668) }
{ model(2656) set(1616) predict(1553) }
{ data(2317) use(1299) case(1017) }
{ group(2977) signific(1463) compar(1072) }
{ 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) }
{ use(2086) technolog(871) perceiv(783) }
{ analysi(2126) use(1163) compon(1037) }
{ health(1844) social(1437) communiti(874) }
{ structur(1116) can(940) graph(676) }
{ cancer(2502) breast(956) screen(824) }
{ 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) }
{ decis(3086) make(1611) patient(1517) }
{ process(1125) use(805) approach(778) }
{ activ(1452) weight(1219) physic(1104) }
{ method(2212) result(1239) propos(1039) }
{ detect(2391) sensit(1101) algorithm(908) }

Resumo

JECTIVE: To investigate the effect of pregnancy on the pulse wave of the mother.PATIENTS AND METHODS: Pulse waveforms recorded via a pulse oximeter from the left index finger of non-pregnant women and pregnant women in the three trimesters of pregnancy were Fourier transformed into power spectra. Spectral indices of the power spectra of pulse waveform were obtained and compared among non-pregnant women and pregnant women in the three trimesters of pregnancy.RESULTS: The power of harmonics of pulse wave decayed exponentially with respect to the order of harmonics. The exponent and initial value of exponential decay for the power of harmonics and the power of the 2nd harmonic were increased, whereas the total power of pulse and the powers of higher order harmonics were decreased during pregnancy.CONCLUSION: The power of harmonics of pulse wave can be described by an exponential decay function with respect to the order of harmonics in both non-pregnant and pregnant women. The effects of pregnancy on the pulse wave are the reduction in the total power of pulse and the power of higher order harmonics, and the increase in the power of lower order harmonics in the power spectrum of pulse wave. This effect of pregnancy on the pulse wave might be caused by the decrease in vascular resistance during pregnancy, the increase in workload on the heart due to increased demand of the growing fetus, and the aortocaval compression caused by the progressively enlarged gravid uterus and fetus.

Resumo Limpo

jectiv investig effect pregnanc puls wave motherpati method puls waveform record via puls oximet left index finger nonpregn women pregnant women three trimest pregnanc fourier transform power spectra spectral indic power spectra puls waveform obtain compar among nonpregn women pregnant women three trimest pregnancyresult power harmon puls wave decay exponenti respect order harmon expon initi valu exponenti decay power harmon power nd harmon increas wherea total power puls power higher order harmon decreas pregnancyconclus power harmon puls wave can describ exponenti decay function respect order harmon nonpregn pregnant women effect pregnanc puls wave reduct total power puls power higher order harmon increas power lower order harmon power spectrum puls wave effect pregnanc puls wave might caus decreas vascular resist pregnanc increas workload heart due increas demand grow fetus aortocav compress caus progress enlarg gravid uterus fetus

Resumos Similares

Med Biol Eng Comput - Monitoring respiration in wheezy preschool children by pulse oximetry plethysmogram analysis. ( 0,907065594492379 )
J Clin Monit Comput - Respiratory change in ECG-wave amplitude is a reliable parameter to estimate intravascular volume status. ( 0,86385772765646 )
J Clin Monit Comput - Validation of the new Complior sensor to record pressure signals non-invasively. ( 0,818277840191611 )
J Clin Monit Comput - Impact of central hypovolemia on photoplethysmographic waveform parameters in healthy volunteers part 2: frequency domain analysis. ( 0,817320272182783 )
Med Biol Eng Comput - Enhanced phase synchronization of blood flow oscillations between heated and adjacent non-heated sacral skin. ( 0,816279257392496 )
J Clin Monit Comput - Radial-femoral concordance in time and frequency domain-based estimates of systemic arterial respiratory variation. ( 0,80618117029601 )
Med Biol Eng Comput - Effect of respiration on Korotkoff sounds and oscillometric cuff pressure pulses during blood pressure measurement. ( 0,805616640042326 )
J Clin Monit Comput - A comparative study of pulse rate variability and heart rate variability in healthy subjects. ( 0,802235053510554 )
Comput Math Methods Med - Transfer function analysis of respiratory and cardiac pulsations in human brain observed on dynamic magnetic resonance images. ( 0,779477194902731 )
J Clin Monit Comput - Impaired cerebrovascular reactivity after acute traumatic brain injury can be detected by wavelet phase coherence analysis of the intracranial and arterial blood pressure signals. ( 0,771729724940821 )
Comput. Biol. Med. - Non-uniform multivariate embedding to assess the information transfer in cardiovascular and cardiorespiratory variability series. ( 0,757510547697644 )
Comput Methods Programs Biomed - Like/dislike analysis using EEG: determination of most discriminative channels and frequencies. ( 0,752365937894921 )
J Clin Monit Comput - Morphological analysis of peripheral arterial signals in Takayasu's arteritis. ( 0,748063440458269 )
J Med Syst - Relationship between measurement site and motion artifacts in wearable reflected photoplethysmography. ( 0,74683376696135 )
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. ( 0,738573276191221 )
Comput Math Methods Med - Investigating properties of the cardiovascular system using innovative analysis algorithms based on ensemble empirical mode decomposition. ( 0,727829524612721 )
J Clin Monit Comput - The use of a noninvasive hemoglobin monitor for determining fluid distribution and elimination in pediatric patients undergoing minor surgery. ( 0,727728136299744 )
Comput. Biol. Med. - Current methods in electrocardiogram characterization. ( 0,719027456099892 )
J Clin Monit Comput - Developing an algorithm for pulse oximetry derived respiratory rate (RR(oxi)): a healthy volunteer study. ( 0,712392104693966 )
Med Biol Eng Comput - A method for continuously assessing the autonomic response to music-induced emotions through HRV analysis. ( 0,710960252668401 )
Methods Inf Med - Prediction of countershock success in patients using the autoregressive spectral estimation. ( 0,705936259340921 )
Comput Methods Programs Biomed - A new algorithm for quadratic sample entropy optimization for very short biomedical signals: application to blood pressure records. ( 0,705870805630104 )
J Clin Monit Comput - Respiratory and non-respiratory sinus arrhythmia: implications for heart rate variability. ( 0,702656294873866 )
IEEE J Biomed Health Inform - BreathSens: A Continuous On-Bed Respiratory Monitoring System With Torso Localization Using an Unobtrusive Pressure Sensing Array. ( 0,699910934441961 )
Med Biol Eng Comput - Discrimination of left and right leg motor imagery for brain-computer interfaces. ( 0,699418846771782 )
J Clin Monit Comput - The use of regional cerebral oximetry monitoring during controlled hypotension: a case series. ( 0,697485832462916 )
J Clin Monit Comput - The analysis of transesophageal oxygen saturation photoplethysmography from different signal sources. ( 0,695151490025484 )
Med Biol Eng Comput - Heart rate variability and nonlinear dynamic analysis in patients with stress-induced cardiomyopathy. ( 0,694346874430621 )
Comput Math Methods Med - Novel application of a multiscale entropy index as a sensitive tool for detecting subtle vascular abnormalities in the aged and diabetic. ( 0,691790154596533 )
Comput Methods Programs Biomed - An approach towards realizing the intelligent sphygmogram sampling for e-home healthcare. ( 0,691273864676335 )
Methods Inf Med - Linear and nonlinear analysis of base lung sound in extrinsic allergic alveolitis patients in comparison to healthy subjects. ( 0,690811079914535 )
J Med Syst - Adaptive network-based fuzzy inference system for assessment of lower limb peripheral vascular occlusive disease. ( 0,686183978696155 )
Med Biol Eng Comput - Deriving respiration from photoplethysmographic pulse width. ( 0,686032547414525 )
Comput. Biol. Med. - Passive fetal monitoring by adaptive wavelet denoising method. ( 0,682380759285826 )
Methods Inf Med - Time-varying methods for characterizing nonstationary dynamics of physiological systems. ( 0,678739980175001 )
Methods Inf Med - Linear and fractal heart rate dynamics during sleep at high altitude. Investigation with textile technology. ( 0,675836048446333 )
Comput Methods Programs Biomed - Automatic moment segmentation and peak detection analysis of heart sound pattern via short-time modified Hilbert transform. ( 0,673696283059257 )
J Clin Monit Comput - Non-stationarity of EEG during wakefulness and anaesthesia: advantages of EEG permutation entropy monitoring. ( 0,673047010239462 )
J Clin Monit Comput - Analysis of plethysmographic waveform changes induced by beach chair positioning under general anesthesia. ( 0,670233503499302 )
Med Biol Eng Comput - Directional dual-tree complex wavelet packet transforms for processing quadrature signals. ( 0,669998889601586 )
Comput Methods Programs Biomed - Texture analysis of poly-adenylated mRNA staining following global brain ischemia and reperfusion. ( 0,669554497785877 )
J Med Syst - Human cardiovascular model and applications. ( 0,669386138506359 )
Comput Math Methods Med - A new high-resolution spectral approach to noninvasively evaluate wall deformations in arteries. ( 0,669320507676846 )
Comput. Biol. Med. - Prediction of pharmacologically induced baroreflex sensitivity from local time and frequency domain indices of R-R interval and systolic blood pressure signals obtained during deep breathing. ( 0,669219821732036 )
Comput Methods Programs Biomed - Determination of ECoG information flow activity based on Granger causality and Hilbert transformation. ( 0,667259886689638 )
Methods Inf Med - Long-term correlations and complexity analysis of the heart rate variability signal during sleep. Comparing normal and pathologic subjects. ( 0,666739350484793 )
J Clin Monit Comput - Pulse oximeter plethysmograph variation and its relationship to the arterial waveform in mechanically ventilated children. ( 0,664908667184073 )
J Clin Monit Comput - Heart sounds analysis via esophageal stethoscope system in beagles. ( 0,663739592477897 )
Med Biol Eng Comput - Baroreflex analysis in diabetes mellitus: linear and nonlinear approaches. ( 0,663402875971877 )
Med Biol Eng Comput - Detrended fluctuation analysis of blood pressure in preterm infants with intraventricular hemorrhage. ( 0,662336356640451 )
Med Biol Eng Comput - A technique based on laser Doppler flowmetry and photoplethysmography for simultaneously monitoring blood flow at different tissue depths. ( 0,662109461032644 )
Comput. Biol. Med. - Multiscale entropy and detrended fluctuation analysis of QT interval and heart rate variability during normal pregnancy. ( 0,657595949221429 )
Med Biol Eng Comput - Determinants of vascular and cardiac baroreflex sensitivity values in a random population sample. ( 0,655449294361163 )
J Clin Monit Comput - Multimodal noninvasive monitoring of soft tissue wound healing. ( 0,65450640521055 )
J Clin Monit Comput - Tako-tsubo cardiomyopathy and microcirculation. ( 0,654423937625893 )
J Med Syst - The advantages of wearable green reflected photoplethysmography. ( 0,653437299802252 )
J Clin Monit Comput - Isocapnic hyperpnea with a portable device in Cystic Fibrosis: an agreement study between two different set-up modalities. ( 0,652731516036673 )
Comput. Biol. Med. - Computational simulation of aortic aneurysm using FSI method: influence of blood viscosity on aneurismal dynamic behaviors. ( 0,651590380968001 )
Comput Methods Programs Biomed - Linear and nonlinear analysis of normal and CAD-affected heart rate signals. ( 0,650295807360779 )
Med Biol Eng Comput - Frequency range extension of spectral analysis of pulse rate variability based on Hilbert-Huang transform. ( 0,649998503966142 )
J Clin Monit Comput - The mean prehospital machine; accurate prehospital non-invasive blood pressure measurement in the critically ill patient. ( 0,649502947529487 )
J Clin Monit Comput - New concept using Passive Infrared (PIR) technology for a contactless detection of breathing movement: a pilot study involving a cohort of 169 adult patients. ( 0,648734758867932 )
Comput Methods Programs Biomed - Multifractal characterisation of electrocardiographic RR and QT time-series before and after progressive exercise. ( 0,646856251547536 )
IEEE J Biomed Health Inform - Sleep and wake classification with actigraphy and respiratory effort using dynamic warping. ( 0,646799028126668 )
J Clin Monit Comput - In-line pressure within a HOTLINE? Fluid Warmer, under various flow conditions. ( 0,64607625439519 )
J Clin Monit Comput - Impact of central hypovolemia on photoplethysmographic waveform parameters in healthy volunteers. Part 1: time domain analysis. ( 0,645907156312326 )
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. ( 0,645446676405836 )
J Clin Monit Comput - Comparison of spectral entropy and BIS VISTA? monitor during general anesthesia for cardiac surgery. ( 0,644336159933187 )
Med Biol Eng Comput - Characterization of skin dermis microcirculation in flow-mediated dilation using optical sensor with pressurization mechanism. ( 0,64239222427628 )
Comput Methods Programs Biomed - Automatic heart sound detection in pediatric patients without electrocardiogram reference via pseudo-affine Wigner-Ville distribution and Haar wavelet lifting. ( 0,640794233668628 )
Comput Math Methods Med - Simulation of exercise-induced syncope in a heart model with severe aortic valve stenosis. ( 0,638575283288913 )
J Clin Monit Comput - A quantitative EEG method for detecting post clamp changes during carotid endarterectomy. ( 0,637383119868625 )
Med Biol Eng Comput - Assessment of respiratory flow and efforts using upper-body acceleration. ( 0,634724534395268 )
J Clin Monit Comput - Continuous minimally invasive peri-operative monitoring of cardiac output by pulmonary capnotracking: comparison with thermodilution and transesophageal echocardiography. ( 0,634155915990389 )
Med Biol Eng Comput - Model-based correction of the influence of body position on continuous segmental and hand-to-foot bioimpedance measurements. ( 0,632695824012187 )
J Clin Monit Comput - Influence of age and gender on autonomic regulation of heart. ( 0,630397239340317 )
J Clin Monit Comput - Assessment of cerebral oxygenation using near infrared spectroscopy during isovolemic hemodilution in pediatric patients. ( 0,630267215119233 )
Med Biol Eng Comput - Assessment of dynamic cerebral autoregulation and cerebral carbon dioxide reactivity during normothermic cardiopulmonary bypass. ( 0,630039284902877 )
Comput. Biol. Med. - Binary symbolic dynamics classifies heart rate variability patterns linked to autonomic modulations. ( 0,629207207145368 )
Med Biol Eng Comput - Point process time-frequency analysis of dynamic respiratory patterns during meditation practice. ( 0,627980834732292 )
Med Biol Eng Comput - Phonographic signal with a fractional-order chaotic system: a novel and simple algorithm for analyzing residual arteriovenous access stenosis. ( 0,625893352542919 )
J Med Syst - A novel handheld device for use in remote patient monitoring of heart failure patients--design and preliminary validation on healthy subjects. ( 0,625862970768701 )
Comput Methods Programs Biomed - Mobile wearable device for long term monitoring of vital signs. ( 0,622703921592815 )
BMC Med Inform Decis Mak - An adaptive Kalman filter approach for cardiorespiratory signal extraction and fusion of non-contacting sensors. ( 0,622524654983681 )
Med Biol Eng Comput - Multivariate short-term heart rate variability: a pre-diagnostic tool for screening heart disease. ( 0,622154050552707 )
J Clin Monit Comput - Assessment of the effect of rapid crystalloid infusion on stroke volume variation and pleth variability index after a preoperative fast. ( 0,622103559570285 )
Methods Inf Med - Extraction of response waveforms of heartbeat and blood pressure to swallowing. Using mixed signal processing of time domain and respiratory phase domain. ( 0,622053053769612 )
Comput Methods Programs Biomed - Assessment of ventricular contractility and ventricular-arterial coupling with a model-based sensor. ( 0,621316997985649 )
Med Biol Eng Comput - A coupled flow-acoustic computational study of bruits from a modeled stenosed artery. ( 0,621086487118194 )
J Clin Monit Comput - Intraoperative MRI electrical noise and monitor ECG filters affect arrhythmia detection and identification. ( 0,619931425656021 )
IEEE J Biomed Health Inform - EEG activity during movement planning encodes upcoming peak speed and acceleration and improves the accuracy in predicting hand kinematics. ( 0,618764013652354 )
J Clin Monit Comput - The effect of skin incision on the electroencephalogram during general anesthesia maintained with propofol or desflurane. ( 0,617368747170281 )
Telemed J E Health - Wireless portable electrocardiogram and a tri-axis accelerometer implementation and application on sleep activity monitoring. ( 0,616624625727885 )
IEEE Trans Vis Comput Graph - View-Dependent Multiscale Fluid Simulation. ( 0,616274315301118 )
Med Biol Eng Comput - Cardiac oxygen supply is compromised during the night in hypertensive patients. ( 0,614386068629215 )
J Clin Monit Comput - The use of heart rate variability for the early detection of treatable complications after aneurysmal subarachnoid hemorrhage. ( 0,613145340756279 )
J Clin Monit Comput - Pulmonary artery pulsatility is the main cause of cardiogenic oscillations. ( 0,612327039609595 )
Comput. Biol. Med. - Comparison of different EEG features in estimation of hypnosis susceptibility level. ( 0,61176128861826 )
Comput Math Methods Med - Impact of competitive flow on hemodynamics in coronary surgery: numerical study of ITA-LAD model. ( 0,611335624205818 )
J Clin Monit Comput - Transthoracic electrical bioimpedence cardiac output: comparison with multigated equillibrium radionuclide cardiography. ( 0,610199630937274 )