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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02809937
Other study ID # 2014[711]
Secondary ID
Status Completed
Phase Phase 4
First received June 20, 2016
Last updated June 15, 2017
Start date May 2011
Est. completion date June 2017

Study information

Verified date June 2017
Source Peking University First Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Delirium is a frequent postoperative complication. Its occurrence is associated with worse long-term outcomes. In a previous randomized controlled trial, prophylactic low-dose dexmedetomidine infusion during the early postoperative period decreased the incidence of delirium in elderly patients after surgery. The purpose of this 3-year follow-up study is to evaluate whether prophylactic low-dose dexmedetomidine infusion can improve the 3-year outcome in elderly patients recruited in the previous randomized controlled trial.


Description:

Delirium is a frequent postoperative complication; a systematic review revealed that postoperative delirium occurs in 36.8% of surgical patients, and its prevalence increases with age. The occurrence of delirium is associated with worse long-term outcomes including worse functional recovery, decline in cognitive function, and increased mortality rate. Surgical stress, pain, and sleep disturbances are important factors leading to postoperative delirium in the elderly.

Dexmedetomidine is a highly selective alpha-2 adrenoreceptor agonist that provides anti-anxiety, sedation, and modest analgesia with minimal respiratory depression. For mechanically ventilated intensive care unit (ICU) patients, dexmedetomidine sedation improves the quality of sleep, decreases the incidence of delirium, and shortens the duration of ICU stay. For patients undergoing surgery, perioperative dexmedetomidine relieves the severity of stress response, decreases the requirement of anesthetics, and improves postoperative analgesia.

In the previous stage of the current study, 700 elderly patients who were admitted to the ICU after noncardiac surgery were recruited and randomized into two groups (dexmedetomidine group and placebo [normal saline] group). The results showed that prophylactic low-dose dexmedetomidine infusion during the early postoperative period ameliorated the subjective sleep quality and decreased the incidence of delirium (22.6% [79/350] with placebo vs. 9.1% [32/350] with dexmedetomidine; Odds Ratio 0.35, 95% Confidence Interval 0.22 to 0.54; p < 0.0001). The investigators hypothesize that low-dose dexmedetomidine infusion may also improve long-term outcome in this patient population.

The purpose of this 3-year follow-up study is to evaluate whether prophylactic low-dose dexmedetomidine infusion during the early postoperative period can improve the 3-year outcome in elderly patients recruited in the previous randomized controlled trial.


Recruitment information / eligibility

Status Completed
Enrollment 700
Est. completion date June 2017
Est. primary completion date December 2016
Accepts healthy volunteers No
Gender All
Age group 65 Years and older
Eligibility Inclusion Criteria:

Patients were included if they met all of the following criteria:

1. Age of 65 years or older;

2. Underwent elective noncardiac surgery under general anesthesia;

3. Admitted to ICU after surgery.

Exclusion Criteria:

Patients were excluded if they met any of the following criteria:

1. Preoperative history of schizophrenia, epilepsy, Parkinsonism or myasthenia gravis;

2. Inability to communicate in the preoperative period (because of coma, profound dementia or language barrier);

3. Brain injury or neurosurgery;

4. Preoperative left ventricular ejection fraction < 30%, sick sinus syndrome, severe sinus bradycardia (< 50 beats per minute), or second-degree or greater atrioventricular block without pacemaker;

5. Serious hepatic dysfunction (Child-Pugh class C);

6. Serious renal dysfunction (undergoing dialysis before surgery); or

7. Unlikely to survive for more than 24 hours.

Study Design


Intervention

Drug:
dexmedetomidine
low-dose dexmedetomidine infusion
placebo
normal saline infusion

Locations

Country Name City State
China Department of Anesthesiology and Critical Care Medicine, Peking University First Hospital Beijing Beijing

Sponsors (2)

Lead Sponsor Collaborator
Peking University First Hospital Peking University Third Hospital

Country where clinical trial is conducted

China, 

References & Publications (33)

[28] Jorden VSB, et al. Dexmedetomidine: clinical update. Semin Anesth Periop Med Pain 2002;21:265-74.

Anger KE. Dexmedetomidine: a review of its use for the management of pain, agitation, and delirium in the intensive care unit. Curr Pharm Des. 2013;19(22):4003-13. Review. — View Citation

Ansaloni L, Catena F, Chattat R, Fortuna D, Franceschi C, Mascitti P, Melotti RM. Risk factors and incidence of postoperative delirium in elderly patients after elective and emergency surgery. Br J Surg. 2010 Feb;97(2):273-80. doi: 10.1002/bjs.6843. — View Citation

Balas MC, Happ MB, Yang W, Chelluri L, Richmond T. Outcomes Associated With Delirium in Older Patients in Surgical ICUs. Chest. 2009 Jan;135(1):18-25. doi: 10.1378/chest.08-1456. Epub 2008 Nov 18. — View Citation

Bekker A, Haile M, Kline R, Didehvar S, Babu R, Martiniuk F, Urban M. The effect of intraoperative infusion of dexmedetomidine on the quality of recovery after major spinal surgery. J Neurosurg Anesthesiol. 2013 Jan;25(1):16-24. doi: 10.1097/ANA.0b013e31826318af. — View Citation

Bickel H, Gradinger R, Kochs E, Förstl H. High risk of cognitive and functional decline after postoperative delirium. A three-year prospective study. Dement Geriatr Cogn Disord. 2008;26(1):26-31. doi: 10.1159/000140804. Epub 2008 Jun 24. — View Citation

de Rooij SE, van Munster BC, Korevaar JC, Levi M. Cytokines and acute phase response in delirium. J Psychosom Res. 2007 May;62(5):521-5. — View Citation

Dyer CB, Ashton CM, Teasdale TA. Postoperative delirium. A review of 80 primary data-collection studies. Arch Intern Med. 1995 Mar 13;155(5):461-5. Review. — View Citation

Ely EW, Gautam S, Margolin R, Francis J, May L, Speroff T, Truman B, Dittus R, Bernard R, Inouye SK. The impact of delirium in the intensive care unit on hospital length of stay. Intensive Care Med. 2001 Dec;27(12):1892-900. Epub 2001 Nov 8. — View Citation

Ely EW, Shintani A, Truman B, Speroff T, Gordon SM, Harrell FE Jr, Inouye SK, Bernard GR, Dittus RS. Delirium as a predictor of mortality in mechanically ventilated patients in the intensive care unit. JAMA. 2004 Apr 14;291(14):1753-62. — View Citation

Franco K, Litaker D, Locala J, Bronson D. The cost of delirium in the surgical patient. Psychosomatics. 2001 Jan-Feb;42(1):68-73. — View Citation

Girard TD, Pandharipande PP, Ely EW. Delirium in the intensive care unit. Crit Care. 2008;12 Suppl 3:S3. doi: 10.1186/cc6149. Epub 2008 May 14. Review. — View Citation

Gozalo-Marcilla M, Hopster K, Gasthuys F, Hatz L, Krajewski AE, Schauvliege S. Effects of a constant-rate infusion of dexmedetomidine on the minimal alveolar concentration of sevoflurane in ponies. Equine Vet J. 2013 Mar;45(2):204-8. doi: 10.1111/j.2042-3306.2012.00613.x. Epub 2012 Aug 1. — View Citation

Halaszynski TM. Pain management in the elderly and cognitively impaired patient: the role of regional anesthesia and analgesia. Curr Opin Anaesthesiol. 2009 Oct;22(5):594-9. doi: 10.1097/ACO.0b013e32833020dc. Review. — View Citation

Holmes JH 4th, Connolly NC, Paull DL, Hill ME, Guyton SW, Ziegler SF, Hall RA. Magnitude of the inflammatory response to cardiopulmonary bypass and its relation to adverse clinical outcomes. Inflamm Res. 2002 Dec;51(12):579-86. — View Citation

Hudek K. Emergence delirium: a nursing perspective. AORN J. 2009 Mar;89(3):509-16; quiz 517-9. Review. — View Citation

Iirola T, Aantaa R, Laitio R, Kentala E, Lahtinen M, Wighton A, Garratt C, Ahtola-Sätilä T, Olkkola KT. Pharmacokinetics of prolonged infusion of high-dose dexmedetomidine in critically ill patients. Crit Care. 2011;15(5):R257. doi: 10.1186/cc10518. Epub 2011 Oct 26. — View Citation

Liu C, Zhang Y, She S, Xu L, Ruan X. A randomised controlled trial of dexmedetomidine for suspension laryngoscopy. Anaesthesia. 2013 Jan;68(1):60-6. doi: 10.1111/j.1365-2044.2012.07331.x. Epub 2012 Oct 29. — View Citation

Milbrandt EB, Deppen S, Harrison PL, Shintani AK, Speroff T, Stiles RA, Truman B, Bernard GR, Dittus RS, Ely EW. Costs associated with delirium in mechanically ventilated patients. Crit Care Med. 2004 Apr;32(4):955-62. — View Citation

Mu DL, Wang DX, Li LH, Shan GJ, Li J, Yu QJ, Shi CX. High serum cortisol level is associated with increased risk of delirium after coronary artery bypass graft surgery: a prospective cohort study. Crit Care. 2010;14(6):R238. doi: 10.1186/cc9393. Epub 2010 Dec 30. — View Citation

Oto J, Yamamoto K, Koike S, Imanaka H, Nishimura M. Effect of daily sedative interruption on sleep stages of mechanically ventilated patients receiving midazolam by infusion. Anaesth Intensive Care. 2011 May;39(3):392-400. — View Citation

Oto J, Yamamoto K, Koike S, Onodera M, Imanaka H, Nishimura M. Sleep quality of mechanically ventilated patients sedated with dexmedetomidine. Intensive Care Med. 2012 Dec;38(12):1982-9. doi: 10.1007/s00134-012-2685-y. Epub 2012 Sep 8. — View Citation

Park JK, Cheong SH, Lee KM, Lim SH, Lee JH, Cho K, Kim MH, Kim HT. Does dexmedetomidine reduce postoperative pain after laparoscopic cholecystectomy with multimodal analgesia? Korean J Anesthesiol. 2012 Nov;63(5):436-40. doi: 10.4097/kjae.2012.63.5.436. Epub 2012 Nov 16. — View Citation

Pisani MA, Kong SY, Kasl SV, Murphy TE, Araujo KL, Van Ness PH. Days of delirium are associated with 1-year mortality in an older intensive care unit population. Am J Respir Crit Care Med. 2009 Dec 1;180(11):1092-7. doi: 10.1164/rccm.200904-0537OC. Epub 2009 Sep 10. — View Citation

Rabe-Jablonska J, Bienkiewicz W. [Anxiety disorders in the fourth edition of the classification of mental disorders prepared by the American Psychiatric Association: diagnostic and statistical manual of mental disorders (DMS-IV -- options book]. Psychiatr Pol. 1994 Mar-Apr;28(2):255-68. Polish. — View Citation

Roberts B, Rickard CM, Rajbhandari D, Turner G, Clarke J, Hill D, Tauschke C, Chaboyer W, Parsons R. Multicentre study of delirium in ICU patients using a simple screening tool. Aust Crit Care. 2005 Feb;18(1):6, 8-9, 11-4 passim. — View Citation

Roth-Isigkeit A, Borstel TV, Seyfarth M, Schmucker P. Perioperative serum levels of tumour-necrosis-factor alpha (TNF-alpha), IL-1 beta, IL-6, IL-10 and soluble IL-2 receptor in patients undergoing cardiac surgery with cardiopulmonary bypass without and with correction for haemodilution. Clin Exp Immunol. 1999 Nov;118(2):242-6. — View Citation

Rudolph JL, Ramlawi B, Kuchel GA, McElhaney JE, Xie D, Sellke FW, Khabbaz K, Levkoff SE, Marcantonio ER. Chemokines are associated with delirium after cardiac surgery. J Gerontol A Biol Sci Med Sci. 2008 Feb;63(2):184-9. — View Citation

Shi CM, Wang DX, Chen KS, Gu XE. Incidence and risk factors of delirium in critically ill patients after non-cardiac surgery. Chin Med J (Engl). 2010 Apr 20;123(8):993-9. — View Citation

Shim JJ, Leung JM. An update on delirium in the postoperative setting: prevention, diagnosis and management. Best Pract Res Clin Anaesthesiol. 2012 Sep;26(3):327-43. doi: 10.1016/j.bpa.2012.08.003. Review. — View Citation

Siddiqi N, Stockdale R, Britton AM, Holmes J. Interventions for preventing delirium in hospitalised patients. Cochrane Database Syst Rev. 2007 Apr 18;(2):CD005563. Review. Update in: Cochrane Database Syst Rev. 2016;3:CD005563. — View Citation

Van Rompaey B, Schuurmans MJ, Shortridge-Baggett LM, Truijen S, Elseviers M, Bossaert L. Long term outcome after delirium in the intensive care unit. J Clin Nurs. 2009 Dec;18(23):3349-57. doi: 10.1111/j.1365-2702.2009.02933.x. Epub 2009 Sep 4. — View Citation

Vaurio LE, Sands LP, Wang Y, Mullen EA, Leung JM. Postoperative delirium: the importance of pain and pain management. Anesth Analg. 2006 Apr;102(4):1267-73. — View Citation

* Note: There are 33 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Other Survival rates in the subgroup of patients after cancer or non-cancer surgery Survival rates at different timepoints in the subgroup of patients after cancer or non-cancer surgery At 6 months, 1 year, 2 years and 3 years after surgery
Other Duration of survival in the subgroup of patients after cancer or non-cancer surgery Duration of survival in the subgroup of patients after cancer or non-cancer surgery From the day of surgery until the end of the 3rd year after surgery
Other Cognitive function in the subgroup of 3-year survivors after cancer or non-cancer surgery Cognitive function is assessed with Telephone Interview for Cognitive Status-Modified (TICS-M). At the end of the 3rd year after surgery
Other Health related quality of life in the subgroup of 3-year survivors after cancer or non-cancer surgery Health related quality of life is assessed with World Health Organization Quality of Life-BREF (WHOQOL-BREF). At the end of the 3rd year after surgery
Primary Duration of survival after surgery Duration of survival after surgery From the day of surgery until the end of the 3rd year after surgery
Secondary Survival rates after surgery Survival rates at different timepoints after surgery At 6 months, 1 year, 2 years and 3 years after surgery
Secondary Cognitive function in 3-year survivors after surgery Cognitive function is assessed with Telephone Interview for Cognitive Status-Modified (TICS-M). At the end of the 3rd year after surgery
Secondary Health related quality of life in 3-year survivors after surgery Health related quality of life is assessed with World Health Organization Quality of Life-BREF (WHOQOL-BREF). At the end of the 3rd year after surgery
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