Mean Arterial Blood Pressure: The MABP was monitored for the 60- minutes duration of hemor-rhagic shock and for 30 min after resuscitation.
The animals were subjected to hemorrhagic shock to lower the MABP to the desired level of hypotension (35-40 mmHg).
Mean Arterial Blood Pressure: The normotensive rats maintained MABP at approximately 123.
8 mmHg whereas the hemorrhagic shocked rats exhibited significantly lower levels of MABP at approximately 38.
The mechanism there constructs a MABP
by converting each agent's MDP into a Markov chain and determines the agent to activate in the current period.
Table 1: In all the subjects, HR in beats per minute, SBP, DBP, PP, MABP
in millimeters of mercury (before and after the exercise) Parameter Exercise N Mean [+ or -] SD P value HR Before 44 72.
The remaining nine used ICP, CPP, and MABP as outcome measurements, and additional outcome variables such as cerebral blood flow (CBF) (Feldman et al.
Carefully monitoring the MABP is crucial because MABP is a component of CPP (equal to MABP minus ICP), and it also can reflect the adequacy of blood supply to the brain, along with its oxygen substrate (Hilton, 2000; Yanko & Mitcho, 2001).
On the basis of the studies reviewed, two clinical recommendations for therapeutic positioning can be made: (a) consider using head elevation up to 30 degrees to significantly reduce ICP but without significantly changing CPP, and (b) monitor CPP during head-elevation positioning because head elevation may simultaneously decrease CPP by decreasing MABP.
TABLE 7 Effect of lateral position on haemodynamc parameters Inotropic Haemodynamic medication/s measurements Study [+ or -] dose reported N Banasik, 1987 (31) NR No Banasik, 1996 (31) NR Yes 120 Banasik, 2001 (33) NR Yes 12 Bein,1996 (34) Yes, 100% Yes 12 Dopamine >6 [micro]g/kg/min Chan, 1992 (35) Yes, 28 (93%) Yes 30 Dopamine 5 [micro]g/kg/min Ibanez, 1981 (35) NR Yes 10 Kim, 2002 (40) NR No Nelson, 1989 (41) Yes, 3 (30%) Yes 10 Dopamine <3 [micro]g/kg/min Chulay, 1982 (36) NR No 35 Davis, 2001 (37) NR Yes 19 Gavigan, 1990 (38) NR No 50 Study Unit Banasik, 1987 (31) HR Banasik, 1996 (31) HR Banasik, 2001 (33) CO HR Bein,1996 (34) MABP
CI EDVI Chan, 1992 (35) MABP
MPAP Ibanez, 1981 (35) HR Kim, 2002 (40) Nelson, 1989 (41) MABP
CI Chulay, 1982 (36) "Pulse rate .