the relative importance of systolic blood pressure (sbp) versus diastolic blood pressure (dbp) in predicting the risk of ischaemic heart disease (ihd) mortality is controversial. we have re-examined sbp compared to d bp and other combinations of sbp and d bp in predicting the risk of ihd mortality in a long-term cohort study oflo,541 men and women in the west of scotland. during a mean follow-u...

The mechanisms of increased arterial pressure lability after sinoaortic deafferentation remain unknown. We have shown previously in rats with chronic sinoaortic deafferentation (7-14 days after sinoaortic deafferentation) that ganglionic blockade significantly reduced mean arterial pressure and arterial pressure lability. The present study investigated the possibility that lability is related t...

To the Editor:—During a recent living-related orthotopic liver transplant, we observed a significant variation between the radial and femoral arterial pressure waveforms immediately after line placement. The right radial arterial pressure was 30 mmHg higher than the right femoral arterial pressure. The radial arterial pressure correlated with the upper extremity noninvasive blood pressure. Arte...

Curves relating renal sympathetic nerve activity and mean arterial pressure were derived in conscious rabbits during ramp changes in mean arterial pressure, elicited by perivascular balloon inflation. The renal sympathetic nerve activity-mean arterial pressure relationship consisted of a high-gain sigmoidal region about resting, where renal sympathetic nerve activity rose or fell in response to...

background: substitution of arterial with venous blood samples to estimate blood gas status is highly preferable due to practical and safety concerns. numerous studies support the substitution of arterial by venous blood samples, reporting strong correlations between arterial and venous values. this study further investigated the predictive ability of venous blood samples for arterial acid-base...

materials and methods in a double blind randomized trial study, 100 patients undergoing elective cardiac surgery were randomized to using heparinized (n = 50) or non-heparinized (normal) saline flush (n = 50) to maintain patency of arterial catheter after operation. indwelling arterial catheters were checked daily for acceptable arterial waveform for three days as primary outcome measures. resu...

conclusions thus, we can conclude that a simulator system using an extracorporeal circulation system can be set to different models of dialyzers, and that the reproduced treatment scenarios can be used for simulation training. results the results of the tests demonstrated successful activation of the alarms by the dialysis apparatus, which were appropriate for each of the five types of accident...

fuzzy controllers are being used in various control schemes. the aim of this work was adjusting hemodialysis machine parameters utilizing a fuzzy logic controller (flc) so that patient’s hemodynamic condition remains stable during hemodialysis treatment. for this purpose a comprehensive mathematical model of the arterial pressure response during hemodialysis, including hemodynamic, osmotic, and...

conclusions as an oral premedication, clonidine can reduce surgical blood loss in lumbar spine posterior fusion surgery, even at the same levels of mean arterial pressure (map) with the control group. its use can be studied in more complicated spine surgeries, such as scoliosis and spinal deformity surgeries. results there was no statistically significant difference between groups in age (p = 0...