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Trials Jul 2024Compared to traditional thoracotomy, transapical transcatheter aortic valve implantation (TAVI) surgery offers reduced trauma and faster recovery, fostering the adoption...
Effects of ultrasound-guided serratus plane block combined with general anesthesia on postoperative early quality of recovery and analgesia in patients undergoing transapical transcatheter aortic valve implantation surgery: study protocol for a randomized controlled trial.
BACKGROUND
Compared to traditional thoracotomy, transapical transcatheter aortic valve implantation (TAVI) surgery offers reduced trauma and faster recovery, fostering the adoption of enhanced recovery after surgery (ERAS) protocols in cardiac surgery. Despite these advancements, postoperative pain management has received insufficient attention. The potential effects of multi-mode analgesia, including ultrasound-guided serratus anterior plane block (SAPB), on postoperative pain and early quality of recovery have not been widely studied, lacking comprehensive prospective evidence. Therefore, this study aims to investigate the impact of SAPB combined with general anesthesia on early recovery quality and analgesic efficacy in transapical TAVI patients.
METHODS
This prospective, randomized controlled study will enroll 70 patients undergoing transapical TAVI, randomly allocated to either the SAPB group or the control group. The primary outcome, assessed using Quality of Recovery-40 (QOR-40) scale, focuses on the quality of recovery at 24 h and 48 h postoperatively. Secondary outcomes include the visual analog scale (VAS) pain scores at rest and during coughing at 6 h, 12 h, 24 h, and 48 h after surgery, frequency of patient-controlled analgesia (PCA) utilization at 24 h and 48 h, opioid consumption at 24 h and 48 h, time and frequency of rescue analgesia and severe pain at 24 h and 48 h, incidence of nausea and vomiting at 48 h after surgery, and dosage of antiemetic drugs.
DISCUSSION
The purpose of our study is to evaluate the effects of ultrasound-guided SAPB combined with general anesthesia on postoperative early quality of recovery and analgesia in transapical TAVI patients. The results obtained may provide valuable insight for the implementation of multi-mode analgesia and enhanced ERAS in this specific patient population.
TRIAL REGISTRATION
China Clinical Trial Register ChiCTR2300068584. Registered on 24 February 2023.
Topics: Humans; Anesthesia, General; Pain, Postoperative; Nerve Block; Transcatheter Aortic Valve Replacement; Prospective Studies; Ultrasonography, Interventional; Randomized Controlled Trials as Topic; Treatment Outcome; Analgesia, Patient-Controlled; Recovery of Function; Male; Female; Time Factors; Pain Measurement; Aged; China; Pain Management
PubMed: 38956681
DOI: 10.1186/s13063-024-08252-0 -
BMC Anesthesiology Jul 2024Nefopam and propacetamol are the most commonly used analgesics in postoperative multimodal analgesic regimens. Distinct mechanisms are involved in each drug's... (Randomized Controlled Trial)
Randomized Controlled Trial Comparative Study
Comparison of analgesic effectiveness between nefopam and propacetamol in living kidney donors following rectus sheath block after hand-assisted living donor nephrectomy: a prospective, randomized controlled trial.
BACKGROUND
Nefopam and propacetamol are the most commonly used analgesics in postoperative multimodal analgesic regimens. Distinct mechanisms are involved in each drug's anti-nociceptive effects. No studies have compared pain relief efficacy between the two drugs in patients undergoing transplantation surgery. Here, we investigated whether the administration of nefopam or propacetamol to healthy living kidney donors who underwent rectus sheath block (RSB) for parietal pain could reduce the subsequent opioid dose necessary to produce adequate analgesia.
METHODS
This prospective, randomized controlled trial included 72 donors undergoing elective hand-assisted living donor nephrectomy into two groups: propacetamol (n = 36) and nefopam (n = 36). Intraoperative RSB was performed in all enrolled donors. The primary outcome was the total volume of intravenous opioid-based patient-controlled analgesia (PCA) used on postoperative day 1 (POD 1). Additionally, the Numeric Rating Scale scores for flank (visceral) and umbilicus (parietal) pain at rest and during coughing were compared, and the Korean adaptation of the Quality of Recovery-15 Questionnaire (QoR-15 K) was evaluated on POD 1.
RESULTS
Both groups had similar preoperative and intraoperative characteristics. On POD 1, the total amount of PCA infusion was significantly lower in the nefopam group than in the propacetamol group (44.5 ± 19.3 mL vs. 70.2 ± 29.0 mL; p < 0.001). This group also reported lower pain scores at the flank and umbilical sites and required fewer rescue doses of fentanyl in the post-anesthesia care unit. However, pain scores and fentanyl consumption in the ward were comparable between groups. The QoR-15 K scores were similar between groups; there were substantial improvements in breathing, pain severity, and anxiety/depression levels in the nefopam group. The incidences of postoperative complications, including sweating and tachycardia, were similar between groups.
CONCLUSION
Compared with propacetamol, nefopam provides a greater analgesic effect for visceral pain and enhances the effects of blocks that reduce the opioid requirement in living kidney donors with parietal pain managed by RSB.
TRIAL REGISTRATION
The trial was registered prior to patient enrollment in the clinical trial database using the Clinical Research Information Service (registration no. KCT0007351 , Date of registration 03/06/2022).
Topics: Humans; Nefopam; Nephrectomy; Male; Female; Prospective Studies; Living Donors; Pain, Postoperative; Acetaminophen; Nerve Block; Adult; Analgesics, Non-Narcotic; Middle Aged; Analgesics, Opioid; Analgesia, Patient-Controlled; Rectus Abdominis
PubMed: 38956473
DOI: 10.1186/s12871-024-02607-5 -
BMC Anesthesiology Jul 2024As a novel regional analgesic technique, ultrasound-guided pericapsular nerve group (PENG) block has some potential advantages, and we designed a randomized clinical... (Randomized Controlled Trial)
Randomized Controlled Trial
Effect of pericapsular nerve group block and suprainguinal fascia iliaca block on postoperative analgesia and stress response in elderly patients undergoing hip arthroplasty: a prospective randomized controlled double-blind trial.
BACKGROUND
As a novel regional analgesic technique, ultrasound-guided pericapsular nerve group (PENG) block has some potential advantages, and we designed a randomized clinical trial (RCT) to investigate whether the ultrasound-guided PENG block combined with general anesthesia can better reduce stress response, maintain intraoperative hemodynamic stability, and reduce postoperative analgesia in elderly hip arthroplasty compared with ultrasound-guided suprainguinal fascia iliaca block (SIFIB) combined with general anesthesia.
METHODS
Seventy-four subjects were enrolled over an 8-month period (20 April 2023 to 31 December 2023). All patients were divided into the test group (group P) and the control group (group S) using the envelope as the randomization method. The test group was treated with preoperative ultrasound-guided PENG block analgesia combined with general anesthesia and the control group was treated with preoperative ultrasound-guided SIFIB analgesia combined with general anesthesia. The primary outcome selected was the patient Visual Analogue Scale (VAS) score at 12 h postoperatively.
RESULTS
After generalized estimating equations (GEE) analysis, there was a statistically significant difference in the main effect of postoperative VAS score in group P compared with group S (P = 0.009), the time effect of VAS score in each group was significantly different (P < 0.001), and there was no statistically significant difference in the group-time interaction effect (P = 0.069). There was no statistically significant difference in the main effect of intraoperative mean arterial pressure (MAP) change (P = 0.911), there were statistically significant differences in the time effect of MAP in each group (P < 0.001), and there were statistically significant differences in the interaction effect (P < 0.001).
CONCLUSIONS
In summary, we can conclude that in elderly patients undergoing hip fracture surgery, postoperative analgesia is more pronounced, intraoperative hemodynamic parameters are more stable, and intraoperative stress is less induced in patients receiving SIFIB than in patients receiving PENG block.
Topics: Humans; Male; Female; Aged; Double-Blind Method; Nerve Block; Prospective Studies; Arthroplasty, Replacement, Hip; Pain, Postoperative; Ultrasonography, Interventional; Anesthesia, General; Fascia; Stress, Physiological; Aged, 80 and over
PubMed: 38956469
DOI: 10.1186/s12871-024-02604-8 -
BMC Anesthesiology Jul 2024The efficacy and reliability of erector spinae plane block (ESPB) in posterior open lumbar spine surgery has been demonstrated; however, few randomized controlled trials... (Randomized Controlled Trial)
Randomized Controlled Trial
The efficacy of lumbar erector spinae plane block for postoperative analgesia management in patients undergoing lumbar unilateral bi-portal endoscopic surgery: a prospective randomized controlled trial.
BACKGROUND
The efficacy and reliability of erector spinae plane block (ESPB) in posterior open lumbar spine surgery has been demonstrated; however, few randomized controlled trials of lumbar ESPB (L-ESPB) in lumbar unilateral bi-portal endoscopic (UBE) surgery have been reported.
METHODS
A total of 120 patients, aged 18 to 65 (who underwent elective lumbar UBE surgery under general anesthesia and exhibited an American Society of Anesthesiologists physical status of I to III) were randomly assigned in a 1:1 ratio to the ESPB group and the Control group. Ultrasound(US)-guided unilateral single-shot 0.25% ropivacaine L-ESPB was performed in the ESPB group, but not in the control group. Postoperative analgesic strategy for all patients: patient controlled intravenous analgesia (PCIA, diluted and dosed with fentanyl alone) was initiated immediately after surgery combined with oral compound codeine phosphate and ibuprofen sustained release tablets (1 tablet containing ibuprofen 200 mg and codeine 13 mg, 1 tablet/q12h) commenced 6 h postoperatively. We collected and compared patient-centred correlates intraoperatively and 48 h postoperatively. The primary outcomes were intraoperative and postoperative opioid consumption and postoperative quality of recovery-15 (QoR-15) scores.
RESULTS
Compared to the control group (n = 56), the ESPB group (n = 58) significantly reduced intraoperative remifentanil consumption (estimated median difference - 280 mcg, 95% confidence interval [CI] - 360 to - 200, p < 0.001, power = 100%); significantly reduced fentanyl consumption at 24 h postoperatively (estimated median difference - 80mcg, 95%[CI] - 128 to - 32, p = 0.001, power = 90%); and significantly enhanced the QoR-15 score at 24 h postoperatively (estimated median difference 11, 95%[CI] 8 to 14, p < 0.001, power = 100%). Compared to the control group, the ESPB group enhanced the resting numeric rating scale (NRS) score up to 8 h postoperatively, and the active movement NRS score up to 4 h postoperatively. The incidence of postoperative nausea and vomiting (PONV) (p = 0.015, power = 70%), abdominal distension (p = 0.024, power = 64%), and muscular calf vein thrombosis (MCVT) (p = 0.033, power = 58%) was lower in the ESPB group than in the control group. Moreover, the occurrence of L-ESPB related adverse reactions was not found herein.
CONCLUSION
US-guided L-ESPB reduces intraoperative and 24 h postoperative opioid consumption and improves patients' QoR-15 scores at 24 h postoperatively. L-ESPB can be safely and effectively utilized in lumbar UBE surgery.
TRIAL REGISTRATION
Chinese Clinical Trial Registry, ChiCTR2200061908 , date of registration: 10/07/2022. Registry URL.
Topics: Humans; Male; Pain, Postoperative; Female; Middle Aged; Nerve Block; Adult; Prospective Studies; Analgesics, Opioid; Lumbar Vertebrae; Analgesia, Patient-Controlled; Ropivacaine; Endoscopy; Anesthetics, Local; Ultrasonography, Interventional; Aged; Young Adult; Adolescent; Ibuprofen; Paraspinal Muscles
PubMed: 38956458
DOI: 10.1186/s12871-024-02601-x -
Aesthetic Surgery Journal Jul 2024Perioperative hypothermia in plastic surgery has underestimated risks, including increased risk of infection, cardiac events, blood loss, prolonged recovery time,...
BACKGROUND
Perioperative hypothermia in plastic surgery has underestimated risks, including increased risk of infection, cardiac events, blood loss, prolonged recovery time, increased nausea, pain, and opioid usage. Inadequate preventive measures can result in up to 4 hours of normothermia restoration.
OBJECTIVES
Compare the impact of different strategies for normothermia during plastic surgery procedures and its relationship with clinical outcomes.
METHODS
A non-randomized clinical trial was conducted in a single center in Bogota, Colombia. We enrolled adult patients undergoing body contouring surgery and divided them into four intervention groups with different measures to control body temperature. Univariate and Bivariate analyses were performed comparing several clinical symptoms to evaluate outcomes.
RESULTS
A total of 197 patients were analyzed. Most of them were women (84,3%). Mean age was 38.6 years, and a median procedure duration of 260 minutes. Demographic and clinical characteristics did not exhibit significant differences between the groups. However, there were notable variations in temperature measurements at crucial moments during the surgical procedure among the groups, attributed to the implementation of distinct thermal protective strategies. Group comparisons showed a relationship between hypothermia with increased nausea, vomiting, shivering, pain, and additional analgesia requirements.
CONCLUSIONS
Incorporation of active thermal protective measures, such as Blanketrol or HotDog, during body contouring procedures, markedly diminishes the risk of hypothermia and enhances overall clinical outcomes. Implementing these active measures to maintain the patient in a state of normothermia not only improves operating room efficiency but also leads to a reduction in recovery room duration.
PubMed: 38953184
DOI: 10.1093/asj/sjae142 -
Journal of Cardiothoracic Surgery Jul 2024In this study, we compared the analgesic effects of intercostal nerve block (ICNB), ultrasound-guided paravertebral nerve block (PVB), and epidural block (EB) following... (Randomized Controlled Trial)
Randomized Controlled Trial Comparative Study
Comparative analysis of the analgesic effects of intercostal nerve block, ultrasound-guided paravertebral nerve block, and epidural block following single-port thoracoscopic lung surgery.
OBJECTIVE
In this study, we compared the analgesic effects of intercostal nerve block (ICNB), ultrasound-guided paravertebral nerve block (PVB), and epidural block (EB) following single-port thoracoscopic lung surgery.
METHOD
A total of 120 patients who underwent single-hole thoracoscopic lung surgery were randomly and equally divided into three groups: ICNB group, the PVB group, and the EB group. ICNB was performed under direct thoracoscopic visualization before the conclusion of the surgery in the ICNB group, while PVB and EB were performed after general anesthesia in the PVB and EB groups, respectively. Patient-controlled intravenous analgesia (PCIA) was used following the surgery in all the groups. The following indicators were recorded: Intraoperative sufentanil dosage, anesthesia awakening time, postoperative intubation time, nerve block operation time, postoperative visual analog scale (VAS) pain scores during resting and coughing at regular intervals of 0, 2, 4, 8, 24, and 48 h, the time until first PCIA, number of effective compressions within 24 h postoperatively, number of rescue analgesia interventions, and the side effects.
RESULTS
In comparison to the ICNB group, the PVB and EB groups had a lower intraoperative sufentanil dosage, significantly shorter anesthesia awakening time, and postoperative intubation time, but longer nerve block operation time, lower VAS scores when resting and coughing within 24 h postoperatively (all p-values less than 0.05). Conversely, there were no statistically significant differences in VAS scores during resting and coughing after 24 h (all p-values greater than 0.05). Time to first PCIA, number of effective compressions and number of rescue analgesia at the 24-hour mark postoperatively were significantly better in the PVB and EB groups than that in the ICNB group (P < 0.05). However, there was a higher incidence of side effects observed in the EB group (P < 0.05).
CONCLUSION
The analgesic effect of PVB and EB following single-port thoracoscopic lung surgery is better than that of ICNB. PVB causes fewer side effects and complications and is safer and more effective.
Topics: Humans; Nerve Block; Female; Male; Middle Aged; Intercostal Nerves; Ultrasonography, Interventional; Pain, Postoperative; Thoracic Surgery, Video-Assisted; Aged; Pain Measurement; Adult; Thoracoscopy; Lung
PubMed: 38951892
DOI: 10.1186/s13019-024-02877-7 -
Zhonghua Yi Xue Za Zhi Jul 2024To investigate the effectiveness and safety of multimodal analgesia in patients with end-stage head and neck cancer in open gastrostomy surgery. This was a randomized... (Randomized Controlled Trial)
Randomized Controlled Trial
To investigate the effectiveness and safety of multimodal analgesia in patients with end-stage head and neck cancer in open gastrostomy surgery. This was a randomized controlled trial. From June to December 2023, 50 patients with end-stage head and neck cancer who underwent elective open gastrostomy surgery in Beijing Tongren Hospital Affiliated to Capital Medical University were prospectively selected. The patients were divided into multimodal analgesia group and local anesthesia group using the random number table method according to different anesthesia methods, with 25 cases in each group. In multimodal analgesia group, a multimodal analgesia regimen was adopted: ultrasound-guided abdominal wall nerve block (rectus sheath block and transverse abdominis plane block)+intravenous injection of oxycodone+intravenous injection of flurbiprofen axetil and dexamethasone. In local anesthesia group, local infiltration anesthesia with ropivacaine was adopted. The main outcome measure was the incidence of intraoperative pain numeric rating scale (NRS) score>3 points in the two groups. The secondary observation indicators included NRS score and hemodynamic indexes [mean arterial pressure (MAP) and heart rate (HR)] at various time points during surgery [before anesthesia (T0), at the time of incision (T1), 10 minutes after surgery (T2), during gastric body traction (T3), and at the end of surgery (T4)], incidence of adverse reactions, postoperative patient satisfaction score, as well as the NRS scores at rest and activity (coughing) within 24 hours after surgery. The multimodal analgesia group included 21 males and 4 females, aged (61.4±9.9) years. There were 19 males and 6 females in the local anesthesia group, aged (58.6±10.8) years. The incidence of intraoperative NRS score>3 points and the incidence of salvage analgesia in the multimodal analgesia group were both 12.0% (3/25), which were lower than 60.0% (15/25) in the local anesthesia group, and the differences were statistically significant (all <0.001); The NRS score [ (, )] at T3 in the multimodal analgesia group was 2 (2, 3) points, which were lower than 5 (3, 6) points in the local anesthesia group (<0.05). There were smaller variabilities in MAP and HR in the multimodal analgesia group than those in the local anesthesia group (all <0.05). The incidence of intraoperative tachycardia, surgical traction reaction, and nausea in the multimodal analgesia group was lower than that in the local anesthesia group (all <0.05). The postoperative satisfaction score of patients in the multimodal analgesia group was (9.25±0.71) points, which were higher than (7.33±0.87) points in the local anesthesia group (<0.001). NRS score during postoperative activity within 24 hours in the multimodal analgesia group were (2.36±0.75) points, which were lower than (3.03±0.81) points of the local anesthesia group (=0.005). No adverse reactions such as urinary retention, nausea, vomiting and dizziness occurred in both groups. Compared with local anesthesia, the multimodal analgesic strategy could provide better analgesic effect and longer duration, better hemodynamic stability, and fewer intraoperative adverse reactions in patients with end-stage head and neck cancer undergoing open gastrostomy.
Topics: Humans; Head and Neck Neoplasms; Analgesia; Nerve Block; Gastrostomy; Male; Anesthesia, Local; Pain, Postoperative; Female; Pain Management; Prospective Studies; Anesthetics, Local; Middle Aged; Pain Measurement
PubMed: 38951104
DOI: 10.3760/cma.j.cn112137-20240119-00135 -
JPMA. the Journal of the Pakistan... Jun 2024To compare the effects of magnesium sulphate on the total dose of intravenous morphine consumption postoperatively following limb amputations along with rescue analgesia... (Randomized Controlled Trial)
Randomized Controlled Trial
OBJECTIVE
To compare the effects of magnesium sulphate on the total dose of intravenous morphine consumption postoperatively following limb amputations along with rescue analgesia requirement, pain scores and side effects.
METHODS
This prospective, triple-blinded, randomised controlled study was conducted from October 2021 to May 2022 at the Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan, and comprised of patients scheduled for limb amputations. They were randomised into 2 equal groups. The anaesthesia protocol was uniform for all patients. Intervention group A was administered 30mg/kg loading dose and 10mg/kg/hr maintenance dose of magnesium sulphate intravenously, while patients in control group B received the same amount of plain isotonic saline. Morphine consumption, including that used for rescue analgesia and patient-controlled analgesia, was measured for 24 hours postoperatively. Numeric rating scale was used for the evaluation of postoperative pain in both groups at 15min, 1h, 2h, at discharge from the post-anaesthesia care unit and at 12h and 24h in the ward. Data was analysed using SPSS 23.
RESULTS
Of the 24 patients enrolled, the study was completed by 20(83.33%). There were 10(50%) patients in group A; 8(40%) males and 2(20%) females with mean age 24.8±14.14 years and mean surgery time 130.5±47.86 minutes. There were 10(50%) patients in group B; 8(40%) males and 2(20%) females with mean age 23.2±7.4 years and mean surgery time 117±23.85 minutes (p>0.05). Total morphine used over 24 hours in group A was 16±3.1 mg compared to 29.6±11.2 mg in group B (p<0.05). The time for first use of patient-controlled analgesia after arriving in the postanaesthesia care unit was significantly delayed in group A (72.2±24.95 minutes) compared to that in group B (25±26.68 minutes) (p<0.05). Pain scores were significantly higher in the group B at 15min compared to group A (p<0.05), but not at the rest of the time points (p>0.05).
CONCLUSIONS
Intravenous magnesium sulphate proved to be effective in lowering postoperative opioid requirement following limb amputations.
Topics: Humans; Pain, Postoperative; Magnesium Sulfate; Female; Male; Analgesics, Opioid; Adult; Morphine; Prospective Studies; Amputation, Surgical; Pain Measurement; Middle Aged; Analgesia, Patient-Controlled; Young Adult; Acute Pain
PubMed: 38948969
DOI: 10.47391/JPMA.9022 -
American Journal of Ophthalmology Jun 2024Pan-retinal photocoagulation (PRP) is the mainstay of treatment for proliferative diabetic retinopathy (PDR), reducing the risk of severe vision loss. Pain poses a... (Review)
Review
PURPOSE
Pan-retinal photocoagulation (PRP) is the mainstay of treatment for proliferative diabetic retinopathy (PDR), reducing the risk of severe vision loss. Pain poses a potential obstacle to effective laser delivery and patient compliance. Therefore, implementing pain relief strategies can enhance both treatment efficacy and patient comfort.
DESIGN
A systematic review and meta-analysis.
METHODS
We conducted a systematic review and meta-analysis according to PRISMA guidelines. The PubMed, Embase and Cochrane Central Register of Controlled Trials databases were searched for randomized controlled trials (RCTs) that enrolled patients undergoing PRP due to DR and compared analgesics or non-steroidal anti-inflammatory drugs (NSAID) to placebo. Pain was evaluated with the visual analogue scale. The version 2 of the Cochrane Collaboration's Risk of Bias in Randomized Controlled Trials tool and its version for crossover trials were used to assess the risk of bias. The Grading of Recommendations, Assessment, Development, and Evaluation tool was used to measure the certainty of evidence.
RESULTS
A total of 13 studies were included, comprising 1404 eyes from RCTs, nine of which were crossover. Patients who were administered analgesia reported a significantly lower pain sensitivity compared to those who received placebo (Standardized mean difference [SMD] -0.38; 95% confidence interval [CI] -0.58, -0.17; P<0.01; I=69%). Subgroup analysis of systemic administration of analgesics/NSAIDs (metamizole, Entonox, acetaminophen, ibuprofen, caffeine, mefenamic acid, intramuscular ketorolac tromethamine, and potassium diclofenac) also showed a statistically significant reduction in pain when compared to placebo (SMD -0.28; 95% CI -0.50, -0.07; P<0.01; I=43%). Exclusive eye drops administration (ketorolac tromethamine 0.5% and sodium diclofenac 0.1%) also showed a significant difference in pain sensitivity (SMD -0.46; 95% CI -0.88, -0.05; I=83%), however with a more significant heterogeneity.
CONCLUSION
The results of this meta-analysis including over 1000 patients demonstrated that the use of analgesics significantly reduced pain sensitivity during PRP, and systemic analgesia is potentially better than topical administration when compared to placebo.
PubMed: 38942228
DOI: 10.1016/j.ajo.2024.06.018 -
JAMA Network Open Jun 2024The efficacy of a semirecumbent position (SRP) in reducing postoperative hypoxemia during anesthesia emergence is unclear despite its widespread use. (Randomized Controlled Trial)
Randomized Controlled Trial
IMPORTANCE
The efficacy of a semirecumbent position (SRP) in reducing postoperative hypoxemia during anesthesia emergence is unclear despite its widespread use.
OBJECTIVE
To determine the differences in postoperative hypoxemia between patients in an SRP and a supine position.
DESIGN, SETTING, AND PARTICIPANTS
This randomized clinical trial was performed at a tertiary hospital in China between March 20, 2021, and May 10, 2022. Patients scheduled to undergo laparoscopic upper abdominal surgery under general anesthesia were enrolled. Study recruitment and follow-up are complete.
INTERVENTIONS
Patients were randomized to 1 of the following positions at the end of the operation until leaving the postanesthesia care unit: supine (group S), 15° SRP (group F), or 30° SRP (group T).
MAIN OUTCOMES AND MEASURES
The primary outcome was the incidence of postoperative hypoxemia in the postanesthesia care unit. Severe hypoxemia was also evaluated.
RESULTS
Out of 700 patients (364 men [52.0%]; mean [SD] age, 47.8 [11.3] years), 233 were randomized to group S (126 men [54.1%]; mean [SD] age, 48.2 [10.9] years), 233 to group F (122 men [52.4%]; mean [SD] age, 48.1 [10.9] years), and 234 to group T (118 women [50.4%]; mean [SD] age, 47.2 [12.1] years). Postoperative hypoxemia differed significantly among the 3 groups (group S, 109 of 233 [46.8%]; group F, 105 of 233 [45.1%]; group T, 76 of 234 [32.5%]; P = .002). This difference was statistically significant for groups T vs S (risk ratio [RR], 0.69 [95% CI, 0.55-0.87]; P = .002) and groups T vs F (RR, 0.72 [95% CI, 0.57-0.91]; P = .007), but not for groups F vs S (RR, 0.96 [95% CI, 0.79-1.17]; P = .78). Severe hypoxemia also differed among the 3 groups (group S, 61 of 233 [26.2%]; group F, 53 of 233 [22.7%]; group T, 36 of 234 [15.4%]; P = .01). This difference was statistically significant for groups T vs S (RR, 0.59 [95% CI, 0.41-0.85]; P = .005).
CONCLUSIONS AND RELEVANCE
In this randomized clinical trial of SRP during anesthesia recovery in patients undergoing laparoscopic upper abdominal surgery, postoperative hypoxemia was significantly reduced in group T compared with group F or group S.
TRIAL REGISTRATION
Chinese Clinical Trial Registry Identifier: ChiCTR2100045087.
Topics: Humans; Male; Female; Middle Aged; Hypoxia; Postoperative Complications; Patient Positioning; Adult; Anesthesia Recovery Period; Anesthesia, General; China; Laparoscopy; Supine Position; Abdomen
PubMed: 38941098
DOI: 10.1001/jamanetworkopen.2024.16797