Undergoing Hip Surgery Research Articles

Efficacy and safety of perioperative analgesia in PENG block for children undergoing hip surgery with developmental dysplasia: study protocol for a randomized, double-blinded, non-inferiority trial

BackgroundSurgical intervention is critical in the treatment of hip developmental dysplasia in children. Perioperative analgesia, usually based on high opioid dosages, is frequently used in these patients. In some circumstances, regional anesthetic procedures such as caudal block and lumbar plexus block have also been used. Previous research has shown that pericapsular nerve group (PENG) block provides excellent anesthetic efficacy during open hip surgery in adults. PENG block is thought to provide a similar analgesia effect comparable to caudal block.MethodsThis study is a single-center, prospective, randomized, double-blinded, non-inferiority experiment that enrolled children aged 6 months to 7 years who were scheduled for developmental dysplasia hip surgery. Following general anesthesia and regional blocks (0.25% ropivacaine at a dose of 2.5 mg·kg−1 with epinephrine at a concentration of 1:200,000), 48 individuals will be randomly assigned to either the PENG or caudal groups. The primary outcome measure is the highest FLACC (face, legs, activity, crying, consolability) score achieved within 24 h of surgery. Secondary outcomes include intraoperative opioid consumption, analgesic dosage within 24 h of surgery, time to start rescue analgesia, number of PCA pump activations, time to remove SLIPA (streamlined liner of the pharynx airway), duration of regional block procedures, incidence of adverse events, plasma ropivacaine concentrations, and hospital stays and costs. All data will be collected by blinded investigators. The trial’s final results will be published in a peer-reviewed scientific journal.DiscussionWe expect this trial to provide some evidences that PENG block is safe and effective for perioperative analgesia in pediatric patients undergoing open hip surgery.Trial registrationChinese Clinical Trial Registry ChiCTR2100053128. Registered on November 12, 2021.

Efficacy and Safety of Pericapsular Nerve Group Block (PENG) in Hip Surgery Under General Anaesthesia: A Systematic Literature Review and Meta-Analysis

Background: The pericapsular nerve group (PENG) block is a novel ultrasound-guided regional technique that may provide analgesia to patients undergoing hip surgery. It has been extensively studied in recent years, but the evidence of superiority over other regional anaesthetic techniques is inconclusive. This review aimed to compare outcomes of the PENG block in patients undergoing hip surgery with standard techniques under general anaesthesia. Methods: PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines were followed throughout the preparation of this review. Randomised trials from electronic databases were included. We investigated postoperative pain scores, required analgesia, and adverse events associated with the block. Results: Ten studies satisfied the criteria to be included in the meta-analysis. Data from 646 patients were analysed, in which 321 patients received PENG block and 325 were included in the comparative groups. Pain scores at rest, at 24 h (p = 0.04) and 48 h (p = 0.02) were lower in patients who had received the PENG block. This group also required a smaller amount of opioids at 24 h after the procedure, but this difference was not statistically significant (p = 0.53); while a similar non-significant reduction in opioid consumption was also observed at 48 h. Although PENG seems to delay the time to the first analgesic request, we failed to prove a statistically significant difference (p = 0.83). Patient satisfaction also seems to be better in the PENG group, but not in a statistically significant way. No important side effects related to the block were described. Conclusions: PENG block for major hip surgery offers better postoperative analgesia, with possibly less opioid consumption. It seems to prolong the time to the first analgesic but does not significantly affect common side effects of anaesthesia/analgesia such as PONV or duration of hospital stay.

Pericapsular Nerve Group (PENG) Block Versus Lumbar Erector Spinae Plane Block (ESPB) in Pediatric Hip Surgery: A Randomized, Double-Blinded, Controlled Trial.

The effectiveness and safety of the pericapsular nerve group (PENG) block and lumbar erector spinae plane block (ESPB) in pediatric hip surgeries is limited mainly to case reports. This study assessed the efficacy of ultrasound-guided PENG block versus lumbar ESPB under spinal anesthesia. Ninety patients aged 2 to 7 years, ASA I-III scheduled for hip surgery were randomly assigned to 3 equal groups, each receiving the PENG block group (n=30), the ESPB group (n=30), or the control group (n=30). After the spinal anesthesia, the block was performed with 0.5kg/mL of 0.2% ropivacaine. The primary outcome was the pain scores (FLACC) 48 hours after surgery. The secondary outcomes included postoperative FLACC pain scores, neutrophile-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and total opioid consumption. The FLACC score was significantly lower in the lumbar ESPB and PENG groups compared with the control group (P<0.0001) at all time points. The NLR and PLR levels were substantially lower in the PENG and lumbar ESPB groups (P<0.0001) compared with the control group. The NLR and PLR levels were significantly lower in the PENG and lumbar ESPB groups compared with the control group (P<0.0001). The total opioid consumption was significantly lower in the PENG and lumbar ESPB groups compared with the control group (P<0.0001). Forty-three percent of children in the PENG group and 50% of children in the lumbar ESPB group did not require opioids postoperatively. The PENG block and the lumbar ESPB provide efficient postoperative analgesia in children undergoing hip surgery. The PENG block and lumbar ESPB lower cumulative opioid consumption and the stress response to surgery, expressed by NLR and PLR levels. Level I.

Osteoporosis screening using X-ray assessment and osteoporosis self-assessment tool for Asians in hip surgery patients.

As many patients with osteoporosis remain undiagnosed, we aimed to develop a simple method to efficiently screen for osteoporosis using a combination of anteroposterior hip X-ray assessment and the Osteoporosis Self-Assessment Tool for Asians (OSTA), which is calculated as (body weight - age) × 0.2. One hundred Japanese women (age: 73 ± 11 years, body weight: 54.4 ± 11.1 kg) who underwent hip surgery, anteroposterior hip X-ray, and DXA were included. Based on the DXA results of the total proximal femur, 35 cases were diagnosed with osteoporosis. Fifteen orthopaedic surgeons visually inspected the hip X-ray images and scored the suspicion of osteoporosis on a scale of 1-4 (1: very unlikely, 4: very suspicious), which is referred to as "pred-score." In addition, OSTA was calculated as a continuous variable (OSTA score). Osteoporosis was screened using the pred-score and OSTA score, and both scores were analyzed using the receiver operating characteristic curves. The area under the curves (AUCs) of the pred-score and OSTA score were 0.626-0.875 and 0.817 across surgeons, respectively. When both scores were used, the AUC for screening osteoporosis ranged from 0.821 to 0.915 across surgeons. Significant improvement from AUCs calculated with the pred-score or OSTA score was found in 11 surgeons (73.3%). The combination of X-ray assessment and OSTA can be used to screen for osteoporosis and has the potential to be used as a new simple screening tool in daily clinical practice.

Pericapsular nerve group (PENG) block versus supra-inguinal fascia iliaca (SIFI) block for functional outcome in patients undergoing hip surgeries – A randomised controlled study

Background and Aims: In hip surgeries, the pericapsular nerve group (PENG) block and supra-inguinal fascia iliaca (SIFI) block are commonly employed perioperative regional analgesia techniques. This study aimed to compare functional outcomes regarding quadriceps muscle strength and weight-bearing capacity between PENG and SIFI blocks after hip surgery. Methods: In this single-centre, double-blinded, randomised trial, 60 patients undergoing hip surgeries under subarachnoid block were randomised into either Group P (PENG block) or Group S (SIFI block). Blocks were administered under ultrasound guidance with 30 mL of 0.2% ropivacaine and 4 mg dexamethasone. Functional mobility was assessed 24 and 48 h postoperatively by measuring quadriceps strength and maximum weight-bearing capacity. Analgesic efficacy was also evaluated by comparing visual analogue score (VAS) scores at 24 h, total opioid consumption over 24 h, and duration of analgesia. Statistical analysis included Student’s t-test, Chi-square, and Z-test as appropriate, with statistical significance set at P &lt; 0.05. Results: Group P demonstrated significantly higher quadriceps-muscle strength at 24 h (P = 0.025) and 48 h (P = 0.002) post surgery. More patients in Group P achieved superior weight-bearing grades at 24 h (P = 0.002) post surgery compared to Group S. VAS scores were significantly lower in Group P at 24 h post surgery (P = 0.006). Group P also showed a prolonged duration of analgesia (P = 0.019) and lower mean opioid consumption (P = 0.001) compared to Group S. Conclusion: The PENG block may be superior to the SIFI block in terms of functional outcomes with better quadriceps strength, enhanced weight-bearing, and provision of more effective postoperative analgesia in hip surgery patients.

Ultrasound-guided anterior iliopsoas muscle space block compared with fascia iliaca compartment block in elderly hip surgery: A randomized controlled trial.

Elderly hip fracture patients experience severe pain. Surgical stress and pain during position changes for spinal anesthesia puncture can adversely affect hemodynamics. The objective of this study was to compare the perioperative analgesic efficacy of anterior iliopsoas muscle space block with supra-inguinal fascia iliaca compartment block (S-FICB) in elderly patients undergoing hip surgery. In this randomized control trial, 66 patients were randomly assigned to either the iliopsoas space or the S-FICB group. Each patient received 30 mL of ropivacaine 0.375%. Perioperative pain scores were assessed and compared in both groups. The primary outcome was pain scores during changes in position for neuraxial anesthesia. Secondary outcomes included postoperative pain intensity, inflammatory markers for 12 to 24 hours, and perioperative adverse reactions. The iliopsoas space group demonstrated a faster median block onset of 7 [6-8] minutes compared to S-FICB 14.50 [13-16] minutes (P < .001). Neuraxial anesthesia position changes resulted in lower pain scores for iliopsoas 2 [1-2] versus S-FICB 3 [3-4] (P < .001). Resting pain scores were similar at 12 hours post-surgery, but during exercise, the iliopsoas group had significantly lower scores [1-2] compared to S-FICB 4 [2-4] (P < .001). After 24 hours, C-RP levels were lower in the iliopsoas group (14.86 ± 1.23 mg/L) than S-FICB (17.90 ± 1.25 mg/L) (P < .001). The 2 groups differed from one another (P < .001). These findings suggest that iliopsoas space block may offer faster, superior dynamic pain control, and potentially reduced inflammation compared to FICB block for postoperative pain management. In elderly hip fracture patients, the anterior iliopsoas space block works slightly better than S-FICB at providing effective perioperative analgesia.

The admission inflammatory biomarkers profile of elderly hip fractures and its association with one-year walking independence and mortality: a prospective study.

Immune response plays an important role in the regulation of elderly hip fracture. This study aims to analyze the relationship between systemic inflammatory markers including neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), systemic immune-inflammation index (SII), and systemic inflammation response index (SIRI) and mortality and walking independence, providing valuable references for the postoperative management of geriatric hip fracture. A retrospective analysis of prospective data on elderly patients who have undergone hip surgery and have been followed for at least one year. The receiver operating characteristic (ROC) curves and the optimum cutoff value were calculated. Univariate analysis and multivariate logistic regression analysis were used to identify the associations between admission four systemic inflammatory markers and one-year mortality and locomotion recovery. During the study period, respiratory disease was the most common cause of death, followed by cardiovascular disease. Multivariate analysis identified NLR (OR, 1.13; 95%CI: 1.09-1.17), SIRI(OR, 1.18; 95%CI: 1.08-1.28) and advanced age (OR, 1.06; 95%CI: 1.01-1.11) as independent risk factors for one-year mortality. In addition, 89 (rate, 31.8%) survivors had poor walking independence within one year. NLR (OR, 1.37; 95%CI: 1.26-1.50), SII(OR, 1.00; 95%CI: 1.001-1.003), SIRI(OR, 1.36; 95%CI: 1.18-1.57) and advanced age (OR, 1.08; 95%CI: 1.02-1.13) were associated with postoperative locomotion recovery. In summary, admission NLR and SIRI are correlated with a high risk of one-year walking independence and mortality, providing a basis for the clinical management of geriatric hip fractures.

Accuracy of preoperative lung ultrasound score for the prediction of major adverse cardiac events in elderly patients undergoing HIP surgery under spinal anesthesia: The LUSHIP multicenter observational prospective study

Background and objectiveWe hypothesize that lung ultrasound scores (LUS) can help stratify the cardiac risk of elderly patients undergoing orthopedic surgery for hip fracture, adding value to the Revised Cardiac Risk Index (RCRI), the American Society of Anesthesiologists Physical Status (ASA-PS) and the National Surgical Quality Improvement Program Myocardial infarction and Cardiac arrest (NSQIP-MICA). MethodsProspective, observational multicenter study of 11 Italian hospitals on patients aged >65 years with hip fractures needing urgent surgery. Subjects with major adverse cardiovascular events (MACE) in the previous 6 months or with ongoing acute heart failure were excluded. Trained anesthesiologists obtained preoperative LUS scores during preoperative evaluation. ROC curve analysis and comparison were used to evaluate test accuracy. ResultsA total of 877 patients were enrolled in the study period. 108 MACE events occurred in 98 patients, with an overall incidence of 11.2%. LUS score was higher in complicated than non-complicated patients, 11.6 ± 6.64 vs. 4.97 ± 4.90 (p < 0.001). Preoperative LUS score ≥8 showed both better AUC (0.78) and accuracy (0.76) in predicting MACE than the RCRI scores (p < 0.001), MICA scores (p = 0.001) and ASA classes (p < 0.001). LUS sensitivity was 0.71, specificity was 0.76, negative predictive value was 0.95. LUS score ≥8 showed an OR for MACE of 5.81[95% CI 3.55–9.69] at multivariate analysis. 91 patients (10.4%) experienced postoperative pneumonia showing a preoperative LUS score higher in the non-pneumonia group, p < 0.001. ConclusionsThe preoperative LUS score, with its high negative predictive value, could improve patients’ risk stratification when used alone or add further value to the RCRI score. RegistrationRegistered at clinicaltrials.gov as NCT04074876.

Effectiveness of Ultrasound Guided Quadratus Lumborum Block versus Intravenous Analgesia for Postoperative Pain Management in Patients Undergoing Hip Surgeries

Abstract Background Orthopedic operations such as hip and femur fractures can lead to significant postoperative pain. In these patients, nonopioid analgesia techniques are especially important in aging populations when comorbidities are considered. Aim of the Work to compare the analgesic efficacy of ultrasound guided Quadratus Lumborum (QL) block versus intravenous analgesia for postoperative pain management in patients undergoing hip surgeries under spinal anesthesia. Patients and Methods This prospective interventional study was conducted at Anesthesiology, Intensive Care and Pain Management Department, Faculty of Medicine, Ain Shams University Maternity Hospitals from January until August 2023. During this study, 40 patients scheduled for hip surgery under spinal anaesthesia were enrolled and divided into two equal groups; quadratus lumborum and control groups, with the same inclusion and exclusion criteria. Total amount of opioid analgesics needed by patients in both groups, pain scores according to the Visual Analog Scale (VAS), first time the patient needed postoperative rescue analgesia, vital data, postoperative length of hospital stay and side effects of drugs were recorded and compared between both groups. Results In our study, no differences were noted between groups regarding demographic data “age, sex, ASA and type of operation”. Regarding hemodynamics, our study revealed that at 10, 20, 40 min, PACU at 30 and 1hr, mean arterial pressures and heart rate were statistically significant higher among control cases compared with quadratus lumborum group. Regarding analgesic efficacy, our study revealed that VAS score was statistically significant higher after 4, 6 and 12hrs, need of 1st rescue analgesic was statistically significant faster 3.60 ± 1.06 vs. 18.00 ± 8.49 hours and total narcotics “mg” was statistically significant higher 60.00 ± 16.16 vs. 40.00 ± 13.69 among control cases compared with quadratus lumborum group. Also, our study revealed that hospital stay “days” was statistically significant longer 2.75 ± 0.44 vs. 1.75 ± 0.64 and side effect respiratory depression and vomiting were statistically significant higher among control cases compared with quadratus lumborum group. Conclusion QL block is effective for analgesia in patients after hip surgery compared with placebo or no block. QLB as a part of multimodal analgesia protocol reduces opioid consumption and pain scores in patients undergoing hip surgeries. The certainty of evidence based on GRADE was moderate.

Efficacy of Pericapsular Nerve Group Block (PENG BLOCK) in the Perioperative Period for Patients Undergoing Hip Surgery

Abstract Background Proximal femur fractures are common fractures especially in elderly population and produce routine problems for trauma. It is common that they lead to immobility or hindrance in daily life. In addition, elderly people can have surgical problems as well as multiple medical complications (Schuetze et al., 2019). Aim of the Work The study aimed to Studying the effect of the pericapsular nerve group (PENG) block on providing perioperative analgesia and improving functional recovery following total hip arthroplasty. Patients and Methods This prospective randomized controlled trial study was conducted in Ain Shams University Hospitals. Thirty six adult patients scheduled for proximal femur fracture fixation under spinal anaesthesia were included in this study. The patients' age was above 18 years old and with the American Society of Anaesthesiologists (ASA) Class I, II and III. At the the beginning of the surgery, patients were randomized using a random number table and the use of a closed envelopes technique were used to receive either ultrasound guided pericapsular nerve group block (PENG) block, or normal saline (no PENG block), each group constitutes 18 patients. Results As regarding time of 1st rescue analgesia our study revealed that there was significant shorter duration to first rescue analgesia in control group as mean time in control group was 13 hours compared to 19 hours in PENG group. As regarding to total morphine consumption our study revealed marked decrease in morphine consumption in the 1st 24 hours post operatively with mean 3mg in PENG group and 6mg in control group. As regarding the mobility after surgery we found that 17 patients out of 18 who received PENG block could stand at 24 hours post operatively in comparison to only 6 patients in control group. Conclusion The other aspect that should be discussed is that the PENG block provides only anterior hip capsule analgesia. Although the anterior capsule innervation is responsible for the majority of hip-related pain, it omits the posterior capsule, which is innervated by the nerve to the quadratus femoris and from the superior gluteal nerve, both from the sacral plexus.

Ultrasound-Guided Suprainguinal Fascia Iliaca Compartment Block in Patients Undergoing Hip Surgery: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

The use of fascia iliaca compartment block (FICB) has been widely encouraged for hip surgery; however, meta-analyses showed mixed results in terms of its efficacy in reduction in analgesic consumption and pain score. These meta-analyses included all forms of FICB approaches, which may diminish the effect size of the therapy. Suprainguinal FICB (s-FICB) has been shown to be superior to other FICB approaches including the ultrasound-guided infrainguinal approach and the landmark approach. This systematic review and meta-analysis aim to compare opioid consumption, pain score, and complications after s-FICB to control for patients undergoing hip surgery. The study protocol was registered with the International Prospective Register of Systematic Reviews (PROSPERO) (registration number CRD42023460377). We performed a systematic literature search in Medical Literature Analysis and Retrieval System Online (MEDLINE), Embase, Scopus, and Cochrane Central Register of Controlled Trials (CENTRAL) electronic databases from inception to 16August 2023 to identify randomized controlled trials (RCTs) that evaluated the efficacy of s-FICB versus control for patients undergoing hip surgery. Data were independently extracted by two reviewers, and disagreements were resolved by consensus or by discussion with a third investigator. The primary outcome is the 24-houroral morphine equivalent daily dose (oMMED). The secondary outcome includes oMMED at different timepoints, and pain score. The Cochrane risk of biastool (Cochrane, London, England) was used to assess the risk of bias. The certainty of evidence was assessed via the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. Data were synthesized using a random-effects model. Trial sequence analysis is performed on opioid consumption 24 hours post operation. Eleven randomized controlled trials were included. Arthroscopic hip surgery was performed in three studies involving 222 patients, hip and femur fracture surgeries were performed in three studies involving 149 patients, and total hip arthroplasty was performed in five studies involving 483 patients. In studies involving arthroscopic hip surgery, s-FICB did not improve intra-operative and post-operative opioid consumption and post-operative pain score. In studies involving hip and femur fracture surgeries, s-FICB was associated with a non-significant difference in opioid consumption at 24 hours after surgery and post-operative pain score at 12 hours and 24 hours after surgery. However, the result of the trial sequential analysis (TSA) was not definitive, indicating that additional research is necessary to draw conclusive outcomes. In studies involving total hip arthroplasty, s-FICB was associated with a significant reduction in post-operative opioid consumption at 24 and 48 hours with conclusive results in trial sequential analysis. In conclusion, s-FICB is superior to placebo for patients undergoing total hip arthroplasty. For patients undergoing arthroscopic hip surgery, s-FICB is unlikely to be beneficial. With regardto hip fracture surgery, additional research is necessary to draw conclusive outcomes.

A Comparative Study of the Effect of Pericapsular Nerve Block (PENG) and Ultrasound-guided Fascia Iliaca Blocks on Postoperative Pain of Intertrochanteric Fractures

Background: Previous anesthesia blocks often failed to provide complete pain relief and were associated with weakness in the lower limbs, which hindered the essential mobility of patients undergoing hip surgery. Recently, the pericapsular nerve group block (PENG) has emerged as a promising alternative for managing postoperative pain following hip fracture surgery. Objectives: This study aimed to compare pain reduction between the pericapsular nerve group block (PENG) and the fascia iliaca compartment block (FICB) in patients who underwent intertrochanteric hip surgery. Methods: This randomized, double-blind clinical trial included 41 patients who were randomly assigned to either the pericapsular block group (PENG) or the ultrasound-guided (FICB). The primary outcome was pain relief, assessed using the postoperative Visual Analog Scale (VAS) score. Secondary outcomes included the dose of morphine consumed, the time of first morphine request, patient satisfaction with analgesia, and complications. Results: There was no significant difference between the PENG and FICB groups in terms of pain scores at any of the studied intervals (P-value &gt; 0.05). The dose of morphine consumed and the time to the first morphine request were similar for both methods, with no significant difference (P-value &gt; 0.05). The complication rates were 15% for the PENG group and 8.3% for the FICB group, with no significant difference observed (P-value &gt; 0.05). Conclusions: Both pericapsular and fascia iliaca blocks effectively reduced postoperative pain in patients undergoing intertrochanteric fracture surgery. Additionally, both methods were well tolerated by patients with no significant complications. However, there was no evidence to suggest that PENG is superior to FICB in terms of pain reduction.

The median effective concentration of ropivacaine for ultrasound-guided anterior iliopsoas muscle space block in the elderly undergoing hip surgery: a dose-finding study.

In order to improve perioperative pain and reduce the adverse outcome of severe pain in elderly hip fractures, anterior iliopsoas muscle space block (AIMSB) can be used clinically to reduce pain. The aim of the study is to investigate the 50% effective concentration (EC50) of ropivacaine for ultrasound-guided anterior iliopsoas space block in elderly with hip fracture. A total of 27 patients were enrolled with aged ≥65 years, American society of Anesthesiologists (ASA) physical status classification II-III and undergoing Total Hip Arthroplasty (THA). We measured the EC50 using Dixon's up-and-down method. Ultrasound-guided AIMSB was performed preoperatively with an initial concentration of 0.2% in the first patient. After a successful or unsuccessful postoperative analgesia, the concentration of local anesthetic was decreased or increased 0.05%, respectively in the next patient. The successful block effect was defined as no sensation to pinprick in the area with femoral nerve, obturator nerve, and lateral femoral cutaneous nerve in 30 min. Meanwhile, the EC50 of ropivacaine was determined by using linear model, linear-logarithmic model, probit regression model, and centered isotonic regression. A total of 12 patients (48%) had a successful block. All patients with a successful block had a postoperative visual analog scale score of <4 in the 12 h. The estimated EC50 values in linear model, linear-logarithmic model, probit regression model, and centered isotonic regression (a nonparametric method) were 0.268%, 0.259%, 0.277%, and 0.289%. The residual standard error of linear model was the smallest (0.1245). The EC50 of ropivacaine in anterior iliopsoas space block under ultrasound guidance is 0.259-0.289%.

Effective protocol for continuous pericapsular nerve group block in femur fracture patients undergoing hip surgery: two case reports

Pericapsular nerve group (PENG) block was introduced as an effective way to control postoperative pain in patients who have undergone hip surgery. Therefore, we would like to discuss how to perform PENG block accurately on the basis of two cases, both of which involved hip fracture patients. Ultrasound-guided continuous PENG block was performed, and postoperative pain was adequately controlled in both cases. To mount the catheter in the correct position, it should be inserted after the needle enters at the lowest angle possible. If it is confirmed that the psoas tendon is pushed upward without an increase in injection pressure during drug injection, an accurate continuous PENG block has been achieved. We also analyzed fluoroscopic images to determine how the drug spread, and we observed that the drug spread around the hip capsule along the iliacus and psoas muscle.

Effect of remimazolam besylate vs propofol on incidence of postoperative delirium in older patients undergoing hip surgery: a randomized Non-inferiority trial.

Effect of remimazolam besylate vs propofol on incidence of postoperative delirium in older patients undergoing hip surgery: a randomized Non-inferiority trial.

A Comparative Study between Fascia Iliaca Block and Femoral Nerve Block for Postoperative Analgesia after Intertrochanteric Fracture Surgery

Abstract Background Intertrochanteric fracture surgery is a common orthopedic procedure worldwide, pain may be severe, and the patients generally require a significant amount of opioid-based analgesics after such procedures. Peripheral nerve blocks offer effective analgesia and decrease the need for opioids, thereby reducing the complications associated with the use of this class of drug. Pain management regimens following Intertrochanteric fracture surgery include oral analgesics, periarticular injection, peripheral nerve blocks (PNBs), and intravenous patient- controlled analgesia (PCA). Objective To compare the analgesic efficacy and functional recovery of Fascia iliaca block and FNB in patients who have undergone Hip surgery. Methods This prospective randomized clinical trial study was conducted in Ain Shams University hospital after approval of the anesthesia department and the local ethics and research committee over 6 months and after obtaining a written informed consent. Sixty patients underwent Intertrochanteric fracture surgery under spinal anaesthesia regarding postoperative pain and early ambulation were included in the study their ages range between 40 to 75 years old and classified as ASA I and II. The patients were randomly divided using computer generated randomization into two groups 30 patients in each (n = 30). Results The two groups were compared as regard pain control post operatively. Numerical rating scale (NRS) was used to assess pain post operatively and used at regular interval (PACU, After 15min., After 30min., After 45min., After 1 hr., After 1.5 hrs., After 2 hrs., After 4 hrs., After 6 hrs., After 8 hrs., After 10 hrs., After 12 hrs., After 14 hrs., After 16 hrs., After 18 hrs., After 20 hrs., After 22 hrs. and After 24 hrs.). And there is no significant difference between two groups, with p- value (p &amp;gt; 0.05 NS). As regard to total dose of narcotics used in each group, there is no difference in postoperative nalbuphine consumption. The two groups are compared as regard to quadriceps weakness, onset of ambulation and there was a significant difference between two groups. Conclusion Fascia iliaca block is more effective than Femoral Nerve Block in in patient satisfaction for post-operative analgesia and equally effective with femoral nerve block in post-operative ambulation after Intertrochanteric fracture surgery.

Effects of Continuous versus Single Dose Spinal Anesthesia in Octogenarians Undergoing Hip Surgery: Randomized Control Trial

Abstract Background Continuous spinal anesthesia (CSA) is an anesthetic technique that offers several clinical advantages for anesthesia and analgesia in elderly patients. The level of sensory blockade can be titrated to the desired dermatomal level with great precision with intrathecal (IT) catheters, allowing better control of the hemodynamic consequences of sympathetic blockade associated with spinal anesthesia compared to epidural or single shot spinal techniques. Octogenarians are expected to suffer more from hemodynamic instability with spinal anesthesia. Objective The primary outcome is to compare the incidence of hypotension (defined as decrease in mean arterial blood pressure &amp;gt; 20% from the base line) in continuous spinal anesthesia CSA versus single dose spinal anesthesia in octogenarians undergoing hip surgery. The secondary outcome is to determine the total use of vasopressor (Ephedrine) and the incidence of spinal complications as nausea, vomiting and post Dural puncture headache. Methods This is a randomized controlled clinical trial done at Ain-shams University Hospitals, Cairo, Egypt within a period of 6 months from approval of medical ethics committee. Twenty patients in CSA group received increments of (0.5 ml) of plain bupivacaine 0.5% until T10 level blockade is achieved. Twenty patients in SDA group received single shot of (2.5ml) of bupivacaine 0.5%. Results The main finding of this study is that while MAP was significantly lower between 5-35 minutes (&amp;lt;0.001), it was significantly higher between 40-75 minutes in SDA group than CSA group (0.05).Total bupivacaine dose was significantly higher in SDA (12.5±0.8) group than CSA group (7.6±1.3) (p &amp;lt; 0.001). The total ephedrine dose needed was significantly higher in the SDA group (19.5 ±11.3) than in CSA group (4.5±1.7) (p.0.006). Conclusion The main finding of this study is that for octogenarians undergoing hip surgery, while MAP was significantly lower between 5-35 minutes, it was significantly higher between 40-75 minutes in single dose spinal anesthesia group than continuous spinal anesthesia group. Episodes of bradycardia were similar in both groups. The bupivacaine dose as well as total ephedrine dose was significantly higher in SDA group than CSA group. Groups were similar in the incidence of postoperative complications related to the neuraxial blockade. The impact of these changes on the overall cardiovascular status and outcome in octogenarians undergoing hip surgery could not be determined from our study design.

Incidence, Risk-factors, and Outcomes of Intraoperative Hypotension Following Spinal Anesthesia in Hip Fracture Surgery: A Retrospective Study from Thailand

Objective: Hip fractures are a major health problem in older individuals. Surgical repair is the recommended treatment. Intraoperative hypotension (IOH) due to spinal anesthesia is common and may be associated with unfavorable outcomes. This study aimed to identify the incidence, risk factors, and outcomes of IOH in patients with hip fracture under spinal anesthesia. Materials and Methods: Retrospective data from a Thai hospital (January 2018-December 2020) were reviewed. Patients over 50 who underwent hip surgery were included, excluding those receiving general anesthesia, with high-energy/pathological fractures, or multiple traumas. Patients were categorized into no-IOH and IOH groups, with outcome measures compared. Results: In total, 264 patients were included for analysis. The mean age was 80.9 ± 8.3 years, with 77.3% females. The incidence of IOH was 37.9% [95% CI: 30.8%, 46.1%] and an independent risk factor was age &gt; 65 years (OR [95% CI]: 6.23 [1.13, 34.47]. The two protective factors for IOH were higher preoperative mean arterial pressure (OR [95% CI]: 0.96 [0.93, 0.99]) and time from fracture to surgery &gt; 24 hours (OR [95% CI]: 0.43 [0.21, 0.89]). Postoperative blood transfusions were administered more frequently (53.7%) in the IOH group than in the no-IOH group (37.9%, p = 0.014). Conclusion: The incidence of intraoperative hypotension in hip fracture surgery was 38%. Aging is the only identified risk factor. IOH was related to a higher frequency of blood transfusion, but no other postoperative complications or mortality rates.

Postoperative Pain Management in Patients Undergoing Hip Surgeries with Spinal Anesthesia: Review Article

Postoperative Pain Management in Patients Undergoing Hip Surgeries with Spinal Anesthesia: Review Article

Development of machine learning models to predict perioperative blood transfusion in hip surgery

BackgroundAllogeneic Blood transfusion is common in hip surgery but is associated with increased morbidity. Accurate prediction of transfusion risk is necessary for minimizing blood product waste and preoperative decision-making. The study aimed to develop machine learning models for predicting perioperative blood transfusion in hip surgery and identify significant risk factors.MethodsData of patients undergoing hip surgery between January 2013 and October 2021 in the Peking Union Medical College Hospital were collected to train and test predictive models. The primary outcome was perioperative red blood cell (RBC) transfusion within 72 h of surgery. Fourteen machine learning algorithms were established to predict blood transfusion risk incorporating patient demographic characteristics, preoperative laboratory tests, and surgical information. Discrimination, calibration, and decision curve analysis were used to evaluate machine learning models. SHapley Additive exPlanations (SHAP) was performed to interpret models.ResultsIn this study, 2431 hip surgeries were included. The Ridge Classifier performed the best with an AUC = 0.85 (95% CI, 0.81 to 0.88) and a Brier score = 0.21. Patient-related risk factors included lower preoperative hemoglobin, American Society of Anesthesiologists (ASA) Physical Status > 2, anemia, lower preoperative fibrinogen, and lower preoperative albumin. Surgery-related risk factors included longer operation time, total hip arthroplasty, and autotransfusion.ConclusionsThe machine learning model developed in this study achieved high predictive performance using available variables for perioperative blood transfusion in hip surgery. The predictors identified could be helpful for risk stratification, preoperative optimization, and outcomes improvement.