Cotimparave Evaluation of Oral Alprazolam, as Premedication, on Controlling Blood Pressure in Hypertensive Patients during Surgery

Document Type : Original Article (s)

Authors

1 Professor, Department of Anesthesiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

2 Student of Medicine, School of Medicine AND Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran

Abstract

Background: One of the major challenges in adult surgery is hypertension. Hypertensive patient are in danger of  myocardial ischemia, increasing blood pressure in recovery room, kidney injury and cerebral artery damage. Regarding the previously reported positive effect of alprazolam in decreasing this complication, we decided to evaluate its efficacy in hypertensive patients undergoing surgery under general anesthesia.Methods: The present randomized controlled trial was conducted in 2014 in Alzahra Hospital, Isfahan, Iran. Study subjects (age range between 54 and 76 years) were candidates for elective surgery under general anesthesia. Patients were randomly divided into 2 groups, intervention and control. Control group received no drug and intervention group received alprazolam tablet (0.5 mg) before the surgery. Systolic and diastolic blood pressure, heart rate, respiratory rate, pulse oximetere, and O2 saturation during the surgery and pain severity, extubation time, recovery time and the dose of analgesic drugs after the surgery were evaluated and compared between the groups.Findings: Increasing blood pressure in the first 40 minutes of surgery (P = 0.001), pain severity (P = 0.012) and the dose of analgesic drugs (P = 0.001) were significantly less in intervention group compared to the control group.Conclusion: According to our results, alprazolam has an optimal efficacy in controlling blood pressure in hypertensive patients undergoing surgery and reducing pain severity in recovery room. In the absence of contraindications, it could be used as a prophylactic treatment in this group of patients.

Keywords


  1. Varon J, Marik PE. Perioperative hypertension management. Vasc Health Risk Manag 2008; 4(3): 615-27.
  2. Kaplan NM. Perioperative management of hypertension. UpTodate [Online]. [cited 2015 Sep]; Available from: URL:
  3. http://www.uptodate.com/contents/perioperative-management-of-hypertension.
  4. Goldman L, Caldera DL. Risks of general anesthesia and elective operation in the hypertensive patient. Anesthesiology 1979; 50(4): 285-92.
  5. Prys-Rroberts C. Anaesthesia and hypertension. Br J Anaesth 1984; 56(7): 711-24.
  6. Foex P, Sear JW. The surgical hypertensive patient. Continuing Education in Anaesthesia. Crit Care Pain 2004; 4(5): 139-43.
  7. Wolfsthal SD. Is blood pressure control necessary before surgery? Med Clin North Am 1993; 77(2): 349-63.
  8. Nicholau D. The post anesthetic care unit. In: Miller RD. Miller's anesthesia. 7th ed. Philadelphia, PA: Elsevier; 2010. p. 2717.
  9. Dmitriev KV, Fedorova VI, Nedostup AV. Clonazepam in the treatment of labile arterial hypertension in the elderly. Ter Arkh 2001; 73(3): 58-61. [In Russian].
  10. Ghamarian A. Pharmaceutical Information of Iran. Tehran, Iran: Ghamarian Publications; 2010.
  11. Divac N, Veljkovic S, Nesic Z, Stojanovic R, Bajcetic M, Vasiljevic Z, et al. Pattern of utilization of benzodiazepines in patients with hypertension: a pilot study. Vojnosanit Pregl 2006; 63(4): 370-5.
  12. Kruse W, Rampmaier J, Frauenrath-Volkers C, Volkert D, Wankmuller I, Micol W, et al. Drug-prescribing patterns in old age. A study of the impact of hospitalization on drug prescriptions and follow-up survey in patients 75 years and older. Eur J Clin Pharmacol 1991; 41(5): 441-7.
  13. Divac N, Jasovic M, Djukic L, Vujnovic M, Babic D, Bajcetic M, et al. Benzodiazepines utilization and self-medication as correlates of stress in the population of Serbia. Pharmacoepidemiol Drug Saf 2004; 13(5): 315-22.