Epidural Anesthesia and Long-term Outcomes in Elderly Patients After Surgery
Study Details
Study Description
Brief Summary
Surgical resection is one of the most important treatments for solid organ cancer. Whereas cancer recurrence and/or metastasis are the major reasons of treatment failure. The outcomes after surgery are mainly dependent on the balance between the immune function of the body and the invasiveness of residual cancer. Preclinical and retrospective studies suggest that anaesthetic techniques and drugs may affect the long-term outcomes in patients undergoing cancer surgery. The investigators hypothesize that epidural anesthesia-analgesia may improve long-term survival in the elderly who undergo major surgery for cancer.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
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N/A |
Detailed Description
Surgical resection is the main treatment for potentially curable solid organ cancer. However, long-term survival after cancer surgery is far from satisfactory. Quite a number of patients develop tumor metastasis and/or recurrence after surgery, which are associated with poor long-term outcomes. The development of tumor recurrence and/or metastasis after surgery is mostly dependent on the balance between the anti-tumor immune function of the body and the ability of implantation, proliferation and neovascularization of the residual cancer cells.
Studies showed that anaesthetic techniques and drugs may influence the cellular immune function and long-term outcomes. For example, it was found that ketamine and thiopental, but not propofol, suppresses natural killer (NK) cell activity; all three drugs caused a significant reduction in NK cell number; isoflurane and halothane inhibit interferon stimulation of NK cell cytotoxicity; nitrous oxide interferes with deoxyribonucleic acid, purine, and thymidylate synthesis and depresses neutrophil chemotaxis; opioids have been shown to suppress cell-mediated and humoral immunity.
Considering the potential harmful effects of general anesthesia/anesthetics, there is increasing interest on the effect of regional anaesthesia. Retrospective studies investigating the relationship between epidural anesthesia and outcomes after cancer surgery provide different results. In a meta-analysis of retrospective studies, regional anesthesia was associated with improved survival, but had no effect on the occurrence of cancer recurrence/metastasis. The investigators hypothesize that epidural anesthesia may produce favorable effects on long-term survival in the elderly who undergo major surgery for cancer under general anesthesia. However, there are no sufficient evidences in this aspect.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: Combined epidural-general anesthesia Patients assigned to this group receive combined epidural-general anesthesia and postoperative patient-controlled epidural analgesia. |
Procedure: Combined epidural-general anesthesia
Combined epidural-general anesthesia and postoperative epidural analgesia.
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| Active Comparator: General anesthesia Patients assigned to this group receive general anesthesia and postoperative patient-controlled intravenous analgesia. |
Procedure: General anesthesia
General anesthesia and postoperative intravenous analgesia.
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Outcome Measures
Primary Outcome Measures
- Overall survival after surgery. [Up to median 5 years after surgery.]
Time from surgery to the date of all-cause death.
Secondary Outcome Measures
- Cancer-specific survival after surgery. [Up to median 5 years after surgery.]
Time from surgery to the date of cancer-specific death. Patients who die from other causes being censored at the time of death.
- Recurrence-free survival after surgery. [Up to median 5 years after surgery.]
Time from surgery to the date of cancer recurrence/metastasis or all-cause death, whichever comes first.
- Event-free survival after surgery. [Up to median 5 years after surgery.]
Time from surgery to the first date of cancer recurrence/metastasis, new onset cancer, new serious non-cancer disease, or death from any cause.
Other Outcome Measures
- Overall survival after surgery (cancer patients). [Up to median 5 years after surgery.]
Time from surgery to the date of all-cause death.
- Cancer-specific survival after surgery (cancer patients). [Up to median 5 years after surgery.]
Time from surgery to the date of cancer-specific death. Patients who die from other causes being censored at the time of death.
- Recurrence-free survival after surgery (cancer patients). [Up to median 5 years after surgery.]
Time from surgery to the date of cancer recurrence/metastasis or all-cause death, whichever comes first.
- Event-free survival after surgery (cancer patients). [Up to median 5 years after surgery.]
Time from surgery to the first date of cancer recurrence/metastasis, new onset cancer, new serious non-cancer disease, or death from any cause.
- Cognitive function (3-year survivors). [At the end of the 3rd year after surgery.]
Cognitive function is assessed with the modified Telephone Interview for Cognitive Status (TICS-m; a 12-item questionnaire that assesses global cognitive function by verbal communication via telephone. The score ranges from 0 to 50, with higher score indicating better function).
- Quality of life (3-year survivors). [At the end of the 3rd year after surgery.]
Quality of life is assessed with the World Health Organization Quality of Life brief version (WHOQOL-BREF; a 24-item questionnaire that assesses the quality of life in physical, psychological, social relationship and environmental domains. The score ranges from 0 to 100 for each domain, with higher score indicating better function).
Eligibility Criteria
Criteria
Inclusion Criteria:
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Elderly patients (age 60-90 years);
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Scheduled to undergo noncardiac thoracic or abdominal surgery with an expected duration of 2 hours or longer. For those who undergo thoracoscopic or laparoscopic surgery, the expected length of incision must be 5 centimeters or more;
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Agree to receive patient-controlled postoperative analgesia.
Exclusion Criteria:
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Refused to participate;
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Previous history of schizophrenia, epilepsy or Parkinson disease, or unable to complete preoperative assessment due to severe dementia, language barrier or end-stage disease;
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History of myocardial infarction or stroke within 3 months before surgery;
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Presence of any contraindication to epidural anesthesia and analgesia, including abnormal vertebral anatomy, previous spinal trauma or surgery, severe chronic back pain, coagulation disorder (prothrombin time or activated partial prothrombin time longer than 1.5 times of the upper normal limit, or platelet count of less than 80 * 10^9/L), local infection near the site of puncture, and severe sepsis;
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Severe heart dysfunction (New York Heart Association functional classification 3 or above), severe hepatic insufficiency (Child-Pugh grade C), or severe renal insufficiency (serum creatinine of 442 umol/L or above, with or without serum potassium of 6.5 mmol/L or above, or requirement of renal replacement therapy);
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Any other conditions that were considered unsuitable for study participation.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Beijing University First Hospital | Beijing | Beijing | China | 100034 |
| 2 | Beijing Shijitan Hospital | Beijing | China | 100038 | |
| 3 | Peking University People's Hospital | Beijing | China | 100044 | |
| 4 | Peking University Third Hospital | Beijing | China | 100191 | |
| 5 | Beijing Hospital | Beijing | China | 100730 |
Sponsors and Collaborators
- Peking University First Hospital
- Peking University People's Hospital
- Peking University Third Hospital
- Beijing Hospital
- Beijing Shijitan Hospital, Capital Medical University
Investigators
- Principal Investigator: Dong-Xin Wang, MD, PHD, Peking University First Hospital
Study Documents (Full-Text)
None provided.More Information
Publications
- Beilin B, Martin FC, Shavit Y, Gale RP, Liebeskind JC. Suppression of natural killer cell activity by high-dose narcotic anesthesia in rats. Brain Behav Immun. 1989 Jun;3(2):129-37.
- Buggy DJ, Smith G. Epidural anaesthesia and analgesia: better outcome after major surgery?. Growing evidence suggests so. BMJ. 1999 Aug 28;319(7209):530-1.
- Chen WK, Miao CH. The effect of anesthetic technique on survival in human cancers: a meta-analysis of retrospective and prospective studies. PLoS One. 2013;8(2):e56540. doi: 10.1371/journal.pone.0056540. Epub 2013 Feb 20.
- Gaspani L, Bianchi M, Limiroli E, Panerai AE, Sacerdote P. The analgesic drug tramadol prevents the effect of surgery on natural killer cell activity and metastatic colonization in rats. J Neuroimmunol. 2002 Aug;129(1-2):18-24.
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- Shakhar G, Ben-Eliyahu S. Potential prophylactic measures against postoperative immunosuppression: could they reduce recurrence rates in oncological patients? Ann Surg Oncol. 2003 Oct;10(8):972-92. Review.
- Yamaguchi K, Takagi Y, Aoki S, Futamura M, Saji S. Significant detection of circulating cancer cells in the blood by reverse transcriptase-polymerase chain reaction during colorectal cancer resection. Ann Surg. 2000 Jul;232(1):58-65.
- PUCRP201101-2