Application of remimazolam transversus abdominis plane block in gastrointestinal tumor surgery

BACKGROUND Transversus abdominis plane block(TAPB)is a block of the abdominal afferent nerve fibers between the internal oblique muscle and the transverse abdominal muscle achieved with local anesthetics.It can effectively block the conduction of the anterior nerve of the abdominal wall and exert a good analgesic effect.However,the effect of combining the block with remimazolam on anesthesia in patients undergoing gastrointestinal tumor surgery is still unclear.AIM To examine the effects of combining TAPB with remimazolam on the stress response and postoperative recovery of gastrointestinal tumor surgery patients.METHODS A retrospective analysis was conducted on the clinical data of 102 individuals diagnosed with gastrointestinal malignancies who underwent laparoscopic surgery under general anesthesia between April 2020 and June 2023.The patients were categorized into a control group(n=51),receiving remimazolam for general anesthesia,and an observation group(n=51),receiving TAPB combined with remimazolam for general anesthesia.A comparison was made between both groups in terms of hemodynamic parameters,stress markers,pain levels,recovery quality,analgesic effects,and adverse reactions during the perioperative period.RESULTS The observation group had significantly higher heart rates at time points 1 min after induction and upon leaving the operating room than the control group(P<0.05).The mean arterial pressure at time point T1 in the observation group was significantly higher than that in the control group(P<0.05).Five minutes after extubation,the levels of the hormones adrenaline and noradrenaline in the observation group were considerably lower than those in the control group(P<0.05).At 12 h,24 h,and 48 h following surgery,the visual analog scale scores of the observation group were considerably lower than those of the control group(P<0.05).The observation group had shorter awakening and extubation times and lower Riker sedation-agitation scale scores than the control group(P<0.05).The observation group exhibited considerably fewer effective pump presses,lower fentanyl dosages,and lower incidences of rescue analgesia within 24 h following surgery than the control group(P<0.05).CONCLUSION The application effect of TAPB combined with remimazolam general anesthesia in anesthesia of patients undergoing gastrointestinal tumor surgery is good,which is helpful to promote faster recovery after operation.

Effect of Ultrasound-Guided Transversus Abdominis Plane Block Combined with Lornoxicam on Pain and Recovery Quality After Abdominal Surgery in Patients with Drug Addiction

Objective:This paper aims to analyze the analgesic effect of ultrasound-guided transversus abdominis plane block(TAPB)combined with non-steroidal anti-inflammatory analgesic drug lornoxicam on abdominal surgery in patients with a history of drug addiction.Methods:32 patients aged 18-60 who underwent lower abdominal surgery in the First People's Hospital of Liangshan Yi Autonomous Prefecture and Butuo County People's Hospital of Liangshan Yi Autonomous Prefecture from January 2022 to March 2023 were selected,the patients must have drug abuse history for more than 1 year,with a history of drug withdrawal and relapse.The patients were divided into observation group and control group by the envelope method,with 16 cases in the observation group and 16 cases in the control group.Two groups of patients underwent ultrasound-guided bilateral transversus abdominis plane block after the operation.The observation group was treated with dexmedetomidine hydrochloride 1μg/kg+0.25%ropivacaine hydrochloride 40ml,and the control group was treated with 40ml 0.9%sodium chloride injection,the two groups of patients returned to the ward after operation and given intravenous infusion of lornoxicam for relieving the pain.The visual analogue scale(VAS)score of postoperative pain,the times of rescue analgesia,the time of postoperative anal exhaust,the time of ambulation,nausea and vomiting,withdrawal symptoms,related adverse reactions,and hospitalization days were compared between the two groups.Results:The VAS score of postoperative pain in the observation group was significantly lower than that in the control group,P<0.05.Patients in the observation group used less postoperative rescue analgesics than those in the control group,P<0.05.For postoperative anal exhaust time,the difference between the two groups of patients was relatively small,and the time in the observation group was shorter,P>0.05.The time to get out of bed and the length of hospital stay were not significantly different between the control group and the observation group,P>0.05.The withdrawal symptoms of the patients in the observation group were better,P<0.05,nausea and vomiting,and other adverse reactions were lower in the control group,P<0.05.Conclusion:Ultrasound-guided transversus abdominis plane block combined with lornoxicam can be used to relieve pain in abdominal surgery for patients with drug addiction,which can effectively improve the therapeutic effect of patients and reduce the number of postoperative rescue analgesia.Thus,it has high clinical application value.

Effect of Subcostal Anterior Quadratus Lumborum Block vs.Oblique Subcostal Transversus Abdominis Plane Block after Laparoscopic Radical Gastrectomy

Objective:To evaluate the analgesic effect of ultrasound-guided subcostal anterior quadratus lumborum block(QLB)for laparoscopic radical gastrectomy surgery.Methods:Patients(aged 20-65 years,ASA Ⅰ-Ⅱ,and weighing 40-75 kg)scheduled for elective laparoscopic radical gastrectomy were enrolled in the current study.Sixty patients were randomly assigned to two groups by computer-generated randomization codes:an ultrasound-guided oblique subcostal transversus abdominis plane block(TAPB)group(group T,n=30)or an ultrasound-guided subcostal anterior QLB group(group Q,n=30).In both groups,bilateral ultrasound-guided oblique subcostal TAPB and subcostal anterior QLB were performed before general anesthesia with 0.25% ropivacaine 0.5 mL/kg.For postoperative management,all patients received patient-controlled intravenous analgesia(PCIA)with nalbuphine and sufentanil after surgery,maintaining visual analogue scale(VAS)scores<4 within 48 h.The intraoperative consumption of remifentanil,the requirement for sufentanil as a rescue analgesic,and the VAS scores at rest and coughing were recorded at 1,6,12,24 and 48 h after surgery.The recovery(extubation time after surgery,first ambulation time,first flatus time and length of postoperative hospital stay)and the adverse events(nausea and vomiting,skin pruritus,respiratory depression and nerve-block related complications)were observed and recorded.The primary outcome was the perioperative consumption of opioids.Results:Compared with group T,the intraoperative consumption of remifentanil,requirement for sufentanil and the frequency of PCIA were reduced in group Q.Meanwhile,VAS scores at all points of observation were significantly lower in group Q than in group T.Patients in group Q were also associated with shorter time to first out-of-bed activity and flatus,and shorter length of postoperative hospital stay than group T(P<0.05).There were no skin pruritus,respiratory depression or nerve-block related complications in both groups.Conclusion:Compared with ultrasound-guided oblique subcostal TAPB,ultrasound-guided subcostal anterior QLB provided greater opioid-sparing effect,lower visual analogue scores,and shorter postoperative hospital stay for laparoscopic radical gastrectomy.

Robotic versus open transversus abdominis release and incisional hernia repair: A case-control study

Objective:Transversus abdominus release(TAR)is often required to achieve apposition of the rectus muscles and achieve wide mesh reinforcement of the abdominal wall.Traditionally,TAR has been done with an open technique(oTAR),and the benefits of the newer robotic approach(rTAR)has not been well established in the Australian setting.The aim of this study was to compare the results of oTAR with rTAR to demonstrate its safety and efficacy.Methods:A retrospective review of patients who underwent rTAR and oTAR at two tertiary hospitals was conducted between January 2018 and January 2020 in New South Wales,Australia.Patient demographics,perioperative and postoperative outcomes were compared in both groups.Results:There were 26 patients identified to have undergone TAR(13 rTAR,13 oTAR).Both groups were comparable in regards to age,sex and defect size.oTAR was associated with a higher American Society of Anaesthesiologist score.rTAR was associated with significantly longer average operative time(260.0±78.9 min vs.185.7±64.5 min,p=0.017)but found to have a significantly shorter length of stay(3.6±2.1 d vs.6.9±3.6 d,p=0.007)with a comparable complication rate.Conclusions:rTAR is associated with shorter length of hospital stay with comparable postoperative outcomes when compared to oTAR.We are seeing increasing evidence supporting the safety and benefits of robotics,however larger scale studies are required to fully understand this approach.

Posterior component separation/transversus abdominis release

The Rives-Stoppa technique for ventral hernia repair is commonly utilized due to well-proven outcomes with low overall morbidity. However, this approach is limited by the amount of myofascial advancement and sublay space available for a wide mesh overlap. Thus, anterior component separation was developed to allow further myofascial advancement.Some limitations were noted, which led to the subsequent study, utilization, and refinement of the posterior component separation (PCS) technique.PCS continues to demonstrate low hernia recurrence, surgical site occurrences, and improvement in rectus muscle function. Continued adoption of this technique has expanded to minimally invasive approaches for hernia repair. This paper is a comprehensive review of the evolution of PCS, technique, and outcomes.

Postoperative Analgesia and Cesarean Section under General Anesthesia: Multicenter Study

Background: Neuraxial anesthesia with intrathecal morphine is the reference technique in cesarean section anesthesia for the management of postoperative analgesia. If there is a contraindication to this, general anesthesia is required. The objective of the study was to evaluate the analgesic effectiveness of 4 analgesic techniques performed during cesarean section under general anesthesia in two centers with different anesthetic practices (North Franche Comté Hospital and Omar Bongo Ondimba Army Training Hospital). Method: This is a retrospective and descriptive study over 2 years, from January 1, 2019 to December 31, 2020. It involved evaluating the analgesic effectiveness and tolerance of morphine in the epidural catheter, wound infiltration, intravenous analgesia and Transversus Abdominous Plane block (TAP block) from the post-anesthesia care unit (PACU) until the 4th post-operative day. Results: Of the 354 cesarean sections performed, 84 (11.14%) received general anesthesia. The average age was 32.27 years. Acute fetal distress was the first indication for cesarean section (45.2%), followed by hemorrhagic placenta previa (10.7%) and prolapse of the cord (8.33%). Morphine in the epidural catheter was the most used (47.6%) followed by parietal infiltration (36.9%), intravenous analgesia (13.1%) and TAP block (2.38%). The analgesic effectiveness was comparable between the techniques from postoperative day 0 to day 4. No difference in side effects. Postoperative morphine consumption was significantly reduced (p = 0.011) in the infiltration (9 mg) and TAP block (9mg) groups compared to the epidural catheter (16 mg) and intravenous analgesia (17 mg). No difference in 02 rehabilitation criteria (ambulation, first bowel movement). No difference in the occurrence of chronic pain. Conclusion: In the event of a cesarean section under general anesthesia, there are effective and well-tolerated alternatives to neuraxial anesthesia, particularly regional anesthesia techniques (nerve blocks), particularly in countries with low availability of morphine.

Morphological changes of the lateral abdominal muscles in adolescent soccer players with low back pain: A prospective cohort study

Background:Most papers examining the lateral abdominal muscles(LAMs)and low back pain(LBP)are cross-sectional,with groups of participants being divided into a control and an LBP group.We hypothesized that morphological measurements of the LAMs in adolescent soccer players may predict future LBP incidence.The aim of this study was to examine the associations between the morphology of LAMs and LBP incidence rate among adolescent soccer players.Methods:Ninety-seven adolescent male soccer players with no LBP at baseline were recruited into the prospective cohort study.The thickness of the LAMs was measured at baseline by ultrasound imaging in a supine rest position.Nine cases of LBP occurred during the follow-up 6-month observation.Results:An obliquus internus(OI)asymmetry was related to increasing LBP risk(odds ratio=19.99;95%CI:2.4-167.9).Spearman correlation also showed a linear relationship between OI asymmetry value and duration of LBP(R=0.75,p=0.02).An OI side-to-side difference greater than 1.25 mm suggests possible LBP incidence in the 6-month observation among adolescent soccer players.Conclusion:The morphological changes of the OI may be related to LBP’s incidence in adolescent soccer players.The presence of OI asymmetry increases the odds of LBP by at least 2.4 times.Hypertrophy of the OI on one side of the body may contribute to trunk muscle imbalance.

Assessment of the abdominal muscles at rest and during abdominal drawing-in manoeuvre in adolescent physically active girls:A case–control study

Background: An impact of regular physical activity(RPA) on the abdominal muscles may be significant when comparing various symptomatic groups. However, there is lack comprehensive information in this field. The objective of this study was to assess the lateral abdominal wall at rest and during abdominal drawing-in manoeuvre in adolescent physically active girls in different body positions.Methods: One hundred and forty-four female students, 13–17 years of age, participated in the study. Participants were divided into 2 groups based on a physical activity(PA) statement. Measurements of the thickness of the abdominal muscles at rest and during abdominal drawing-in manoeuvre were made in the supine and standing positions by ultrasound imaging.Results: Compared to the control group, activities of the obliquus internus and transversus abdominis muscles were higher in the regular PA group by 8.9%(95%CI: 3.1–14.7) and 36%(95%CI: 19.1–47.5), respectively. In the RPA group, the transversus abdominis preferential activation ratio was greater by 0.03(95%CI: 0.01–0.04), and the contraction ratio was greater by a mean value of 0.35(95%CI: 0.18–0.46).Conclusion: RPA does not have any effect on the resting thickness of the abdominal muscles in the supine and standing positions. Girls performing RPA have a greater ability to perform an independent activation and greater contractions of the transversus abdominis.

Anesthesia management in a pediatric patient with Becker muscular dystrophy undergoing laparoscopic surgery:A case report

BACKGROUND Patients with Becker muscular dystrophy(BMD)have a high risk of developing hyperkalemia,rhabdomyolysis,and malignant hyperthermia when exposed to volatile anesthetics and depolarizing muscle relaxants.Patients with BMD are also prone to respiratory depression after general anesthesia.Thus,it is extremely challenging for anesthesiologists to manage anesthesia in BMD patients,particularly in pediatric BMD patients.Here,we present successful anesthesia management using transversus abdominis plane block(TAPB)combined with total intravenous anesthesia(TIVA)in a pediatric BMD patient undergoing laparoscopic inguinal hernia repair.CASE SUMMARY A 2-year-old boy,weighing 15 kg,with BMD,was scheduled for laparoscopic inguinal hernia repair.TIVA was used for induction,and continuous infusions of short-acting intravenous anesthetics combined with TAPB were performed for anesthesia maintenance.Moreover,TAPB provided good postoperative analgesia.The patient underwent uneventful surgery and anesthesia,and over the 17 mo follow-up period showed no anesthesia-induced complications.CONCLUSION TAPB combined with TIVA,using short-acting intravenous anesthetic agents,can provide safe and effective anesthesia management in pediatric BMD patients undergoing short-term abdominal surgery.