Evaluation of hemodynamic variations during anesthetic induction in treated hypertensive patients.
OBJECTIVE
Due to the high prevalence of hypertension, the increase in life expectancy, and improvement of diagnostic methods and surgical techniques, this comorbidity will be increasingly more common in surgical patients. The objective of this study was to evaluate the behavior of the hemodynamic variables during anesthetic induction in treated hypertensive patients.


METHODS
This is an observational study on the behavior of hemodynamic parameters (systolic blood pressure, diastolic blood pressure, and heart rate) during the anesthetic induction of hypertensive and normotensive patients scheduled for elective surgeries under general anesthesia, at four moments: preparation (MP), drug (MD), laryngoscopy/intubation (ML), and 5 minutes after laryngoscopy/intubation (ML5).


RESULTS
The sample was composed of 128 patients divided into two groups: hypertensive (GH) and normotensive (GN). Diastolic blood pressure was reduced at MD in both groups, with a smaller percentage reduction in GH (18.3 +/- 14.0% versus 23.0 +/- 11.4%, p = 0.04). There was an increase in SBP and DBP at ML in both groups, with smaller percentage reductions in GH (8.2 +/- 16.3% versus 18.2 +/- 21.2%, p < 0.01; 8.6 +/- 20.2% versus 25.0 +/- 27.9%, p < 0.01, respectively for DBP and SBP). As for ML5, HR, SBP and DBP did not show significant differences between both groups.


CONCLUSIONS
Hypertensive patients under treatment and with controlled blood pressure levels demonstrated greater hemodynamic stability during anesthetic induction.
da Silva Neto
Walter Viterbo
WV
Escola Bahiana de Medicina e Saúde Pública da Fundção Bahiana para o Desenvolvimento das Ciências, Salvador, BA.
Azevedo
Giselli Santos
GS
Coelho
Fernanda Oliveira
FO
Netto
Eduardo Martins
EM
Ladeia
Ana Marice
AM
D000758:Anesthesia; D001794:Blood Pressure; D005260:Female; D006339:Heart Rate; D006801:Humans; D006973:Hypertension / Q000188:drug therapy / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged