Comput. Biol. Med. - Effect of CPAP therapy on daytime cardiovascular regulations in patients with obstructive sleep apnea.

Tópicos

{ blood(1257) pressur(1144) flow(957) }
{ model(2220) cell(1177) simul(1124) }
{ time(1939) patient(1703) rate(768) }
{ treatment(1704) effect(941) patient(846) }
{ group(2977) signific(1463) compar(1072) }
{ drug(1928) target(777) effect(648) }
{ network(2748) neural(1063) input(814) }
{ perform(1367) use(1326) method(1137) }
{ patient(1821) servic(1111) care(1106) }
{ studi(1410) differ(1259) use(1210) }
{ can(774) often(719) complex(702) }
{ method(1219) similar(1157) match(930) }
{ imag(2830) propos(1344) filter(1198) }
{ patient(2315) diseas(1263) diabet(1191) }
{ assess(1506) score(1403) qualiti(1306) }
{ control(1307) perform(991) simul(935) }
{ risk(3053) factor(974) diseas(938) }
{ system(1050) medic(1026) inform(1018) }
{ age(1611) year(1155) adult(843) }
{ signal(2180) analysi(812) frequenc(800) }
{ intervent(3218) particip(2042) group(1664) }
{ analysi(2126) use(1163) compon(1037) }
{ use(976) code(926) identifi(902) }
{ result(1111) use(1088) new(759) }
{ process(1125) use(805) approach(778) }
{ activ(1452) weight(1219) physic(1104) }
{ method(1969) cluster(1462) data(1082) }
{ detect(2391) sensit(1101) algorithm(908) }
{ model(3404) distribut(989) bayesian(671) }
{ imag(1947) propos(1133) code(1026) }
{ data(1737) use(1416) pattern(1282) }
{ inform(2794) health(2639) internet(1427) }
{ system(1976) rule(880) can(841) }
{ measur(2081) correl(1212) valu(896) }
{ 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(2675) segment(2577) method(1081) }
{ take(945) account(800) differ(722) }
{ studi(2440) review(1878) systemat(933) }
{ motion(1329) object(1292) video(1091) }
{ surgeri(1148) surgic(1085) robot(1054) }
{ framework(1458) process(801) describ(734) }
{ problem(2511) optim(1539) algorithm(950) }
{ error(1145) method(1030) estim(1020) }
{ 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) }
{ care(1570) inform(1187) nurs(1089) }
{ general(901) number(790) one(736) }
{ 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) }
{ perform(999) metric(946) measur(919) }
{ research(1085) discuss(1038) issu(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) }
{ studi(1119) effect(1106) posit(819) }
{ 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) }
{ ehr(2073) health(1662) electron(1139) }
{ state(1844) use(1261) util(961) }
{ research(1218) medic(880) student(794) }
{ patient(2837) hospit(1953) medic(668) }
{ 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) }
{ activ(1138) subject(705) human(624) }
{ use(2086) technolog(871) perceiv(783) }
{ can(981) present(881) function(850) }
{ health(1844) social(1437) communiti(874) }
{ structur(1116) can(940) graph(676) }
{ high(1669) rate(1365) level(1280) }
{ cancer(2502) breast(956) screen(824) }
{ use(1733) differ(960) four(931) }
{ implement(1333) system(1263) develop(1122) }
{ survey(1388) particip(1329) question(1065) }
{ estim(2440) model(1874) function(577) }
{ decis(3086) make(1611) patient(1517) }
{ method(2212) result(1239) propos(1039) }

Resumo

Obstructive sleep apnea (OSA) is a sleep disorder with a high prevalence that causes pathological changes in cardiovascular regulation during the night and also during daytime. We investigated whether the treatment of OSA at night by means of continuous positive airway pressure (CPAP) improves the daytime consequences. Twenty-eight patients with OSA, 18 with arterial hypertension, 10 with normal blood pressure, were investigated at baseline and with three months of CPAP treatment. Ten age and sex matched healthy control subjects were investigated for comparisons. We recorded a resting period with 20min quiet breathing and an exercise stress test during daytime with ECG and blood pressure (Portapres). The bicycle ergometry showed a significant reduction of the diastolic blood pressure at a work load of 50W and 100W (p<0.05 and p<0.01, respectively) and a decrease of the heart rate recovery time after the stress test (p<0.05). These results indicate a reduction of vascular resistance and sympathetic activity during daytime. The coupling analysis of the resting periods by means of symbolic coupling traces approach indicated an effect of the CPAP therapy on the baroreflex reaction in hypertensive patients where influences of the systolic blood pressure on the heart rate changed from pathological patterns to adaptive mechanisms of the normotensive patients (p<0.05).

Resumo Limpo

obstruct sleep apnea osa sleep disord high preval caus patholog chang cardiovascular regul night also daytim investig whether treatment osa night mean continu posit airway pressur cpap improv daytim consequ twentyeight patient osa arteri hypertens normal blood pressur investig baselin three month cpap treatment ten age sex match healthi control subject investig comparison record rest period min quiet breath exercis stress test daytim ecg blood pressur portapr bicycl ergometri show signific reduct diastol blood pressur work load w w p p respect decreas heart rate recoveri time stress test p result indic reduct vascular resist sympathet activ daytim coupl analysi rest period mean symbol coupl trace approach indic effect cpap therapi baroreflex reaction hypertens patient influenc systol blood pressur heart rate chang patholog pattern adapt mechan normotens patient p

Resumos Similares

Comput Math Methods Med - Simulation of exercise-induced syncope in a heart model with severe aortic valve stenosis. ( 0,87958144560022 )
Comput Math Methods Med - Evaluation of a model-based hemodynamic monitoring method in a porcine study of septic shock. ( 0,858081544697217 )
Comput. Biol. Med. - Numerical investigation of blood flow in three-dimensional porcine left anterior descending artery with various stenoses. ( 0,856498796348337 )
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. ( 0,854211775181513 )
Comput Methods Programs Biomed - In silico study of the haemodynamic effects induced by mechanical ventilation and biventricular pacemaker. ( 0,850642197928204 )
Comput Math Methods Med - Mathematical analysis of non-Newtonian blood flow in stenosis narrow arteries. ( 0,847463907570238 )
Med Biol Eng Comput - Mechanical behaviour and rupture of normal and pathological human ascending aortic wall. ( 0,84549114872577 )
J Clin Monit Comput - Hemodynamic volumetry using transpulmonary ultrasound dilution (TPUD) technology in a neonatal animal model. ( 0,844860971844803 )
Comput. Biol. Med. - The hemodynamic alterations induced by the vascular angular deformation in stent-assisted coiling of bifurcation aneurysms. ( 0,844099091008281 )
J Clin Monit Comput - Reference values for volumetric capnography-derived non-invasive parameters in healthy individuals. ( 0,842147835344553 )
J Clin Monit Comput - Impact of central hypovolemia on photoplethysmographic waveform parameters in healthy volunteers. Part 1: time domain analysis. ( 0,840881809834544 )
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. ( 0,839876204583757 )
J Clin Monit Comput - Pulmonary artery pulsatility is the main cause of cardiogenic oscillations. ( 0,837431903413523 )
J Clin Monit Comput - Continuous minimally invasive peri-operative monitoring of cardiac output by pulmonary capnotracking: comparison with thermodilution and transesophageal echocardiography. ( 0,836887185773056 )
J Clin Monit Comput - Heart sounds analysis via esophageal stethoscope system in beagles. ( 0,836884642516636 )
Comput. Biol. Med. - Simulation of a pulsatile non-Newtonian flow past a stenosed 2D artery with atherosclerosis. ( 0,836091763582074 )
Med Biol Eng Comput - Arterial reservoir-excess pressure and ventricular work. ( 0,834773479694408 )
Comput Math Methods Med - Numerical study for blood flow in pulmonary arteries after repair of tetralogy of Fallot. ( 0,834175086974767 )
Comput Math Methods Med - Plasma volume expansion resulting from intravenous glucose tolerance test. ( 0,827175961197495 )
J Clin Monit Comput - The effects of cardiac output and pulmonary arterial hypertension on volumetric capnography derived-variables during normoxia and hypoxia. ( 0,826793146272839 )
Comput Math Methods Med - Mathematical modeling of radiofrequency ablation for varicose veins. ( 0,826701965146542 )
J Clin Monit Comput - The changes of pulmonary blood flow in non-ventilated lung during one lung ventilation. ( 0,825652898426385 )
J Clin Monit Comput - Noninvasive continuous hemodynamic monitoring. ( 0,825503872137973 )
J Clin Monit Comput - Assessment of the effect of rapid crystalloid infusion on stroke volume variation and pleth variability index after a preoperative fast. ( 0,825175452616423 )
BMC Med Inform Decis Mak - Home based telemedicine intervention for patients with uncontrolled hypertension--a real life non-randomized study. ( 0,823850519647861 )
J Clin Monit Comput - Continuous non-invasive monitoring improves blood pressure stability in upright position: randomized controlled trial. ( 0,82031985959091 )
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. ( 0,820247116126019 )
J Clin Monit Comput - Assessment of cerebral oxygenation using near infrared spectroscopy during isovolemic hemodilution in pediatric patients. ( 0,819520278769379 )
IEEE J Biomed Health Inform - Experimental investigation of the influence of the aortic stiffness on hemodynamics in the ascending aorta. ( 0,817984788194544 )
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. ( 0,817682575121003 )
Comput Methods Programs Biomed - A model of perfusion of the healthy human lung. ( 0,817498223056168 )
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. ( 0,816419516348643 )
Comput Math Methods Med - Simulation of the Frank-Starling Law of the Heart. ( 0,814244941458454 )
J Clin Monit Comput - The use of a noninvasive hemoglobin monitor for determining fluid distribution and elimination in pediatric patients undergoing minor surgery. ( 0,811502309890828 )
J Clin Monit Comput - Continuous measurement of cardiac output with the electrical velocimetry method in patients under spinal anesthesia for cesarean delivery. ( 0,81107242890722 )
Comput. Biol. Med. - Biomechanical behaviors of curved artery with flexible wall: a numerical study using fluid-structure interaction method. ( 0,807077347983226 )
J Clin Monit Comput - Evaluation of mean systemic filling pressure from pulse contour cardiac output and central venous pressure. ( 0,80313714839228 )
J Clin Monit Comput - Pleth variability index-directed fluid management in abdominal surgery under combined general and epidural anesthesia. ( 0,802338767064969 )
J Clin Monit Comput - Cardiopulmonary interactions and volume status assessment. ( 0,802118793007956 )
J Clin Monit Comput - Impact of skin incision on the pleth variability index. ( 0,8010509450637 )
Med Biol Eng Comput - Characterization of skin dermis microcirculation in flow-mediated dilation using optical sensor with pressurization mechanism. ( 0,801037727646306 )
J Clin Monit Comput - In-line pressure within a HOTLINE? Fluid Warmer, under various flow conditions. ( 0,799752817991506 )
J Clin Monit Comput - Variations of the analgesia nociception index during general anaesthesia for laparoscopic abdominal surgery. ( 0,798818281515637 )
Med Biol Eng Comput - Coronary-aortic interaction during ventricular isovolumic contraction. ( 0,797092247143504 )
Comput Methods Programs Biomed - Mechanical ventilation and thoracic artificial lung assistance during mechanical circulatory support with PUCA pump: in silico study. ( 0,79689593796052 )
Med Biol Eng Comput - Assessment of dynamic cerebral autoregulation and cerebral carbon dioxide reactivity during normothermic cardiopulmonary bypass. ( 0,796484503981025 )
Med Biol Eng Comput - Electropermeabilization of endocytotic vesicles in B16 F1 mouse melanoma cells. ( 0,796097752171427 )
Comput Math Methods Med - Computational fluid dynamics simulations of contrast agent bolus dispersion in a coronary bifurcation: impact on MRI-based quantification of myocardial perfusion. ( 0,795480792877092 )
J Clin Monit Comput - Transthoracic electrical bioimpedence cardiac output: comparison with multigated equillibrium radionuclide cardiography. ( 0,794470751185769 )
Med Biol Eng Comput - Cardiac oxygen supply is compromised during the night in hypertensive patients. ( 0,791025132429757 )
Med Biol Eng Comput - Timing and size of flow impingement in a giant intracranial aneurysm at the internal carotid artery. ( 0,790247967533087 )
J Clin Monit Comput - Tako-tsubo cardiomyopathy and microcirculation. ( 0,789768534403709 )
J Clin Monit Comput - The relationship between the area of peripherally-derived pressure volume loops and systemic vascular resistance. ( 0,789201304000029 )
Comput. Biol. Med. - Modeling of heart sound morphology and analysis of the morphological variations induced by respiration. ( 0,786233098379051 )
Med Biol Eng Comput - Application of multiscale entropy in arterial waveform contour analysis in healthy and diabetic subjects. ( 0,782976464251082 )
Med Biol Eng Comput - Determinants of vascular and cardiac baroreflex sensitivity values in a random population sample. ( 0,782317571314864 )
Med Biol Eng Comput - Model-based correction of the influence of body position on continuous segmental and hand-to-foot bioimpedance measurements. ( 0,781964256779224 )
J Clin Monit Comput - Partitioning the resistances along the vascular tree: effects of dobutamine and hypovolemia in piglets with an intact circulation. ( 0,78054299360483 )
J Clin Monit Comput - Comparison of cardiac output determined by bioimpedance and bioreactance methods at rest and during exercise. ( 0,780299504654494 )
J Clin Monit Comput - Combination of continuous pulse pressure variation monitoring and cardiac filling pressure to predict fluid responsiveness. ( 0,778627843010402 )
Comput Math Methods Med - Impact of competitive flow on hemodynamics in coronary surgery: numerical study of ITA-LAD model. ( 0,777525118910236 )
J Clin Monit Comput - The pulmonary artery catheter. ( 0,776428774324229 )
Comput Methods Programs Biomed - A model of ventilation of the healthy human lung. ( 0,775927914819261 )
Comput. Biol. Med. - A general model for continuous noninvasive pulmonary artery pressure estimation. ( 0,775446680768293 )
Comput Methods Programs Biomed - Quantitative analysis of digital subtraction angiography using optical flow method on occlusive cerebrovascular disease. ( 0,775137399966493 )
Wiley Interdiscip Rev Syst Biol Med - Integration of cardiovascular regulation by the blood/endothelium cell-free layer. ( 0,773385628099675 )
J Clin Monit Comput - Fluid responsiveness is about stroke volume, and not pulse pressure Yogi: the power of Doppler fluid management and cardiovascular monitoring. ( 0,77238868124192 )
J Clin Monit Comput - Impact of central hypovolemia on photoplethysmographic waveform parameters in healthy volunteers part 2: frequency domain analysis. ( 0,77099010008129 )
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. ( 0,767372960764291 )
Med Biol Eng Comput - A coupled flow-acoustic computational study of bruits from a modeled stenosed artery. ( 0,766028316066761 )
Med Biol Eng Comput - Effect of respiration on Korotkoff sounds and oscillometric cuff pressure pulses during blood pressure measurement. ( 0,765905422602266 )
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. ( 0,765196780883486 )
Med Biol Eng Comput - Transesophageal left ventricular electrogram-recording and temporary pacing to improve patient selection for cardiac resynchronization. ( 0,762116336717368 )
Comput Methods Programs Biomed - Measurements of the left atrium and pulmonary veins for analysis of reverse structural remodeling following cardiac ablation therapy. ( 0,761348095362034 )
J Clin Monit Comput - Arterial line for monitoring SpO2 in patients with ischemic peripheries. ( 0,760940196087961 )
Med Biol Eng Comput - Computational model for estimating the short- and long-term cardiac response to arteriovenous fistula creation for hemodialysis. ( 0,760880935636862 )
Med Biol Eng Comput - The effect of aortic wall and aortic leaflet stiffening on coronary hemodynamic: a fluid-structure interaction study. ( 0,760230907110127 )
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. ( 0,760163708763248 )
J Med Syst - Mathematical models of real geometrical factors in restricted blood vessels for the analysis of CAD (coronary artery diseases) using Legendre, Boubaker and Bessel polynomials. ( 0,759320230299566 )
J Clin Monit Comput - The effect of endotracheal tube cuff pressure change during gynecological laparoscopic surgery on postoperative sore throat: a control study. ( 0,758663539399616 )
J Clin Monit Comput - Continuous real time endotracheal tube cuff pressure waveform. ( 0,753366398699479 )
Med Biol Eng Comput - Aortic pressure wave reconstruction during exercise is improved by adaptive filtering: a pilot study. ( 0,752837107717305 )
J Clin Monit Comput - Radial-femoral concordance in time and frequency domain-based estimates of systemic arterial respiratory variation. ( 0,752319543514722 )
J Clin Monit Comput - Dead space reduction by Kolobow's endotracheal tube does not justify the waiving of volume monitoring in small, ventilated lungs. ( 0,752218154585967 )
Comput. Biol. Med. - A semi-automated computer tool for the analysis of retinal vessel diameter dynamics. ( 0,751822643424692 )
J Clin Monit Comput - The use of heart rate variability for the early detection of treatable complications after aneurysmal subarachnoid hemorrhage. ( 0,749694937871046 )
J Clin Monit Comput - Radial artery cannulation decreases the distal arterial blood flow measured by power Doppler ultrasound. ( 0,749656301490529 )
J Clin Monit Comput - Bench test assessment of mainstream capnography during high frequency oscillatory ventilation. ( 0,74821957304782 )
Med Biol Eng Comput - Fully coupled fluid-structure interaction model of congenital bicuspid aortic valves: effect of asymmetry on hemodynamics. ( 0,747991797851257 )
Comput Methods Programs Biomed - Impact of pulmonary vascular stiffness and vasodilator treatment in pediatric pulmonary hypertension: 21 patient-specific fluid-structure interaction studies. ( 0,746886971227061 )
Med Biol Eng Comput - Monitoring intracellular, interstitial, and intravascular volume changes during fluid management procedures. ( 0,742999607760472 )
Med Biol Eng Comput - The influence of intraluminal thrombus on noninvasive abdominal aortic aneurysm wall distensibility measurement. ( 0,742761207022032 )
Comput Math Methods Med - Computational fluid dynamics analysis of the effect of plaques in the left coronary artery. ( 0,738435117193337 )
Comput. Biol. Med. - An in silico case study of idiopathic dilated cardiomyopathy via a multi-scale model of the cardiovascular system. ( 0,738105845849456 )
J Clin Monit Comput - Non-invasive cardiac output and oxygen delivery measurement in an infant with critical anemia. ( 0,737867682134956 )
J Clin Monit Comput - Reliability of a new 4th generation FloTrac algorithm to track cardiac output changes in patients receiving phenylephrine. ( 0,737542842054057 )
J Clin Monit Comput - Multimodal noninvasive monitoring of soft tissue wound healing. ( 0,734032337167977 )
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. ( 0,731958266478408 )
AMIA Annu Symp Proc - A semi-automated quantification of pulmonary artery dimensions in computed tomography angiography images. ( 0,731211618167182 )
Med Biol Eng Comput - Biomechanical analysis of the splenic avulsion mechanism. ( 0,730198491173093 )