1.Oxycodone for Postoperative Analgesia in Patients With Obstructive Sleep Apnea Undergoing Uvulopalatopharyngoplasty
Mengjuan DENG ; Jiali DENG ; Shikun WEN ; Liang XIAO ; Yue PENG
Journal of Sun Yat-sen University(Medical Sciences) 2026;47(5):923-930
ObjectiveTo evaluate the safety and efficacy of oxycodone versus sufentanil for postoperative analgesia in patients with moderate to severe obstructive sleep apnea (OSA) undergoing uvulopalatopharyngoplasty (UPPP). MethodsWe enrolled 73 consecutive patients with moderate-to-severe OSA (confirmed by polysomnography) scheduled for elective UPPP under general anesthesia at our institution between August 2023 and August 2025. Patients were randomly assigned to receive oxycodone (n = 37) or sufentanil (n = 36) using a random number table . The sufentanil group received 1.5 μg per kilogram of body weight, and the oxycodone group received 0.9 mg per kilogram; both groups used patient-controlled intravenous analgesia (PCIA) pumps with a total volume of 100 mL. A 2 mL loading dose was administered 10 minutes before the end of surgery, followed by a background infusion of 2 mL per hour, 2 mL bolus doses on demand, an 8-minute lockout interval, and a maximum hourly volume of 10 mL. We assessed pain scores (Numerical Rating Scale) at rest and during swallowing, Ramsay sedation scores, morphine-equivalent opioid consumption, PCIA bolus demands, patient satisfaction, time to first oral intake, and adverse events (including respiratory depression, nausea, and vomiting) at 4, 12, 24, and 48 hours postoperatively. ResultsBaseline characteristics were well balanced between the two groups (all P>0.05). No significant between-group differences were observed in resting and swallowing NRS scores or Ramsay sedation scores at each postoperative time point, PCIA satisfaction, time to first oral intake, or adverse event incidence across all postoperative time points (all P>0.05). Morphine-equivalent opioid consumption was significantly lower in the oxycodone group at all time points, as were unsuccessful PCIA bolus demands at 24 and 48 hours postoperatively (both P<0.05). ConclusionsLow-dose oxycodone provided analgesic efficacy similar to that of sufentanil for PCIA after UPPP in patients with moderate-to-severe OSA, with no significant between-group differences in adverse events, time to first oral intake, or satisfaction .The oxycodone group had numerically lower adverse event rates and a shorter time to first oral intake, suggesting a favorable safety profile and potential benefits for reducing opioid-related events and facilitating earlier recovery in this patient population.
2.Oxycodone for Postoperative Analgesia in Patients With Obstructive Sleep Apnea Undergoing Uvulopalatopharyngoplasty
Mengjuan DENG ; Jiali DENG ; Shikun WEN ; Liang XIAO ; Yue PENG
Journal of Sun Yat-sen University(Medical Sciences) 2026;47(5):923-930
ObjectiveTo evaluate the safety and efficacy of oxycodone versus sufentanil for postoperative analgesia in patients with moderate to severe obstructive sleep apnea (OSA) undergoing uvulopalatopharyngoplasty (UPPP). MethodsWe enrolled 73 consecutive patients with moderate-to-severe OSA (confirmed by polysomnography) scheduled for elective UPPP under general anesthesia at our institution between August 2023 and August 2025. Patients were randomly assigned to receive oxycodone (n = 37) or sufentanil (n = 36) using a random number table . The sufentanil group received 1.5 μg per kilogram of body weight, and the oxycodone group received 0.9 mg per kilogram; both groups used patient-controlled intravenous analgesia (PCIA) pumps with a total volume of 100 mL. A 2 mL loading dose was administered 10 minutes before the end of surgery, followed by a background infusion of 2 mL per hour, 2 mL bolus doses on demand, an 8-minute lockout interval, and a maximum hourly volume of 10 mL. We assessed pain scores (Numerical Rating Scale) at rest and during swallowing, Ramsay sedation scores, morphine-equivalent opioid consumption, PCIA bolus demands, patient satisfaction, time to first oral intake, and adverse events (including respiratory depression, nausea, and vomiting) at 4, 12, 24, and 48 hours postoperatively. ResultsBaseline characteristics were well balanced between the two groups (all P>0.05). No significant between-group differences were observed in resting and swallowing NRS scores or Ramsay sedation scores at each postoperative time point, PCIA satisfaction, time to first oral intake, or adverse event incidence across all postoperative time points (all P>0.05). Morphine-equivalent opioid consumption was significantly lower in the oxycodone group at all time points, as were unsuccessful PCIA bolus demands at 24 and 48 hours postoperatively (both P<0.05). ConclusionsLow-dose oxycodone provided analgesic efficacy similar to that of sufentanil for PCIA after UPPP in patients with moderate-to-severe OSA, with no significant between-group differences in adverse events, time to first oral intake, or satisfaction .The oxycodone group had numerically lower adverse event rates and a shorter time to first oral intake, suggesting a favorable safety profile and potential benefits for reducing opioid-related events and facilitating earlier recovery in this patient population.
3.Summary of best evidences for anticoagulation management in postoperative patients with heart valve operation
Jialing PENG ; Shaoke LI ; Haiyan WANG ; Mengjuan JING ; Liangtao YIN ; Jiexin DENG
Chongqing Medicine 2025;54(2):477-483
Objective To retrieve the anticoagulation management related evidences in postoperative patients with heart valve operation to provide an evidence-based basis for medical professionals conducting the antithrombotic therapy in postoperative patients with heart valve operation.Methods The related evidences of anticoagulation management after heart valve surgery were retrieved from major databases and websites at home and abroad based on the"6S"evidence resource pyramid modeling system.The retrieval time was from January 1,2017 to February 29,2024.Two researchers trained by evidence-based care evaluated the quality of the literatures and extracted the relevant evidences meeting the criteria by combining with clinical situation.Results A total of 12 literatures were included,including 5 guidelines,4 clinical practices and 3 expert consen-sus.Thirty pieces of best evidences were summarized in eight aspects:contraindications,postoperative an-tithrombotic regimens,warfarin use method,vitamin K use precautions,daily life precautions,anticoagulation complications,long term perioperative anticoagulation bridging and complicating pregnancy.Conclusion The evidences summarized in this study could provide a reference for standardizing anticoagulation management in postoperative pa-tients with heart valve operation and for clinical healthcare workers in order to standardize the anticoagulation therapy after heart valve replacement and reduce the occurrence of anticoagulation-related complications.
4.Repairing skin defects in nude mice using tissue-engineered skin loading keratinocyte growth factor nanocapsules
Binghang LI ; Lihuan DENG ; Mengjuan XIANG ; Bin YANG
Chinese Journal of Tissue Engineering Research 2015;(42):6746-6752
Abstract BACKGROUND: As an emerging technology, tissue-engineered skin has great application prospects. Keratinocyte growth factor (KGF) is proved to promote the proliferation of epidermal cels. OBJECTIVE: To evaluate the effect and characteristics of tissue-engineered skin carrying KGF nanocapsules in repairing skin defects of nude mice. METHODS:(1) The acelular dermal matrix loading KGF (KGF-ADM) was constructed. The human epidermal stem cel population and fibroblasts were captured and cultivated, and then identified. Epidermal stem cels were cultivated on the KGF-ADM and their growth was observed. The tissue-engineered skin loading KGF nanocapsules was transplanted onto the ful-skin defects on the back of nude mice compared with a blank group without keratinocyte growth factor nanocapsules and a control group with skin autograft. In 2, 4 and 6 weeks after transplantation, the contraction and histological healing of the skin were observed respectively. Then anti-human keratin 10-FITC and β1-integrin-Cy3 immunofluorescence were applied to detect the origin, growth and differentiation of stem cels in the epidermis and dermis. RESULTS AND CONCLUSION: The epidermal stem cel population grew wel on the surface of KGF-ADM and attached tightly. There were smal round epidermal stem cels and polygonal terminaly-differentiated cels, which presented with partly cloning growth and a tendency of merging into pieces. The results of tissue-engineered skin with KGF nanocapsules in repairing the skin defects were better than those of the blank group and the control group in 2, 4 and 6 weeks after transplantation. The transplanted skin could fuse with adjacent skin completely, but stil showed some contraction. Under the microscope, they showed good epidermis with layers and normal keratose stratum, and meanwhile, there were stil some β1-integrin+ cels at 8 and 10 weeks, which were epidermal stem cels or transient amplifying cels identified by immunofluorescence. These findings indicate that the tissue-engineered skin carrying KGF nanocapsules has good outcomes in repairing skin defects of nude mice, which is better than common tissue-engineered skin without KGF nanocapsules and autogeneous skin transplantation.

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