Ultrasound-guided Transversus Abdominis Plane Research Articles

Comparative study between Ultrasound Guided Erector Spinae Plane Block Versus Ultrasound Guided Transversus Abdominis Plane Block with Dexmedetomidine as an adjuvant to local anesthetic in Laparoscopic Upper abdominal Surgery.

Comparative study between Ultrasound Guided Erector Spinae Plane Block Versus Ultrasound Guided Transversus Abdominis Plane Block with Dexmedetomidine as an adjuvant to local anesthetic in Laparoscopic Upper abdominal Surgery.

Ultrasound-Guided Transversus Abdominis Plane Block as an Effective Path to Reduce Opioid Consumption After Laparoscopic Bariatric Surgery: A Systematic Review and Meta-analysis of Randomized Controlled Trials.

Effective postoperative pain management is essential to the patient's recovery. The use of opioids as the primary line of pain treatment has been known to increase rates of length of stay, pulmonary complications, paralytic ileus, and nausea and vomiting. Therefore, guidelines strongly recommend alternative paths to reduce opioid consumption through multimodal analgesia, and the transversus abdominis plane block(USG-TAP) has been considered to be one of these optimistic alternatives. A comprehensive systematic search was conducted in four databases until April 2024. We only considered for this analysis randomized controlled trials that assessed the USG-TAP as part of multimodal anesthesia in patients undergoing laparoscopic bariatric surgery. Eleven studies comprising 789 patients were included in the meta-analysis. Our results showed a significant decrease in opioid consumption after the first 24h of surgery (MD - 32.02mg; 95% IC - 51.33, - 12.71; p < 0.01) and fewer patients required extra-dose of opioid (OR 0.20; 95% IC 0.07, 0.62; p < 0.01). The pain score showed to be also improved with the TAP block (MD - 0.69; 95% IC - 1.32, - 0.07; p = 0.03). No difference concerning time to deambulate, nausea and vomiting, and time of surgery was observed among the studies. This study reinforces the benefits of the use of USG-TAP block as part of multimodal analgesia in patients undergoing laparoscopic bariatric surgery.

Clinical Trial Study Protocol: A Prospective Blinded, Randomized, Controlled Clinical Trial Protocol to Assess the Efficacy of Ultrasound-Guided Transversus Abdominis Plane Block on Postoperative Analgesia and Recovery Quality in Laparoscopic Donor Hepatectomy.

Liver transplantation is considered an effective treatment for end-stage liver disease. Laparoscopic donor hepatectomy (LDH) has become a new standard procedure. And it is important to minimize the pain of the donor. Good postoperative analgesia can reduce the occurrence of postoperative complications and promote the early recovery of the donor. Ultrasound-guided transversus abdominis plane (TAP) block can provide effective analgesia for liver donors and reduce postoperative opioid consumption. This study aims to use ultrasound-guided TAP block for LDH to improve postoperative analgesia for donors while reducing opioid consumption and improving patient rehabilitation quality. This study is a prospective blinded, randomized, controlled clinical trial with a concealed allocation of patients (living liver donors) scheduled to receive laparoscopic partial hepatectomy 1:1 to receive local infiltration anesthesia or TAP block. This study will recruit a total of 80 patients. The primary outcome is the dosage of opioids within 24hours after surgery. This trial has been approved by the Institutional Review Board of Beijing Friendship Hospital of China Capital University. This trial study protocol was approved on 8 May 2023. The trial will start recruiting patients after being registered on the Chinese Clinical Trial Registry. ChiCTR2300071694.

Ultrasound-guided transversalis fascia plane block or transversus abdominis plane block for recovery after caesarean section: A randomised clinical trial.

Caesarean section is a widely performed surgical procedure that often results in moderate-to-severe postoperative pain. If left untreated, this pain can lead to short-term and long-term consequences. Transversalis fascia plane (TFP) block and transversus abdominis plane (TAP) block are among the regional anaesthesia techniques employed for managing pain after a caesarean section. We aimed to compare the impact of these two blocks on the quality of recovery in patients undergoing elective caesarean section under spinal anaesthesia. A single-centre, double-blind, randomised trial. Operating room, postanaesthesia recovery unit, and ward in a tertiary hospital. Ninety-three patients (ASA 2 to 3) were recruited. After exclusion, 79 patients were included in the final analysis: 40 in the TFP block group and 39 in the TAP block group. After surgery, participants received either TFP block (20 ml 0.25% bupivacaine for each side) or TAP block (20 ml 0.25% bupivacaine for each side). The primary outcome was the difference in obstetric quality of recovery 11-Turkish (ObsQoR-11T) scores between groups. Secondary outcomes included pain scores, opioid consumption and incidence of opioid-related complications. The mean ObsQoR-11T score was higher in the TFP block group compared with the TAP block group (97.13 ± 6.67 points vs. 87.10 ± 9.84 points, respectively; P < 0.001). The pain scores in the TFP block group were slightly lower between postoperative 4 and 24 h. The mean total morphine consumption was 15.08 ± 2.21 mg in the TFP block group and 22.21 ± 3.04 mg in the TAP block group ( P < 0.001). More patients required rescue analgesia between 4 and 8 h in the TAP block group [2.00 (5.00%) vs. 9.00 (23.08%), P = 0.02]. No significant differences were observed between groups in terms of opioid-related side effects. TFP block used for analgesic purposes yielded a better quality recovery period than TAP block and also reduced opioid consumption. Clinicaltrials.gov (NCT05999981). http://links.lww.com/EJA/B6 .

Ultrasound-guided transversus abdominis plane block is an effective opioid-sparing alternative to epidural anesthesia in open abdominal aortic aneurysm repair

ObjectiveThis study evaluated the effectiveness of ultrasound-guided transversus abdominis plane (TAP) blocks compared with epidural (EPI) and general anesthesia (GA) in managing postoperative pain following open abdominal aortic aneurysm (AAA) repair. MethodsA retrospective review was conducted on 61 elective open AAA repairs performed between January 2016 and December 2021. Patients were categorized into three groups: GA, GA plus EPI, and GA plus TAP block. The primary outcome measured was opioid requirements, reported as morphine milligram equivalents (MME) at 48, 72, and 120 hours postoperatively. The additional opioid requirements between 48 and 72 hours (ΔMME₁) and between 72 and 120 hours (ΔMME₂) were also evaluated. Secondary outcomes included vasopressor requirements, extubation in the operating room, and length of stay in the intensive care unit and hospital. ResultsThe mean MMEs at 48, 72, and 120 hours were statistically significant across all groups. The mean MME at 48 hours was 51.1 ± 71.9 in the TAP group compared with 140.5 ± 121.7 in the GA group. Pairwise comparisons showed a significant difference between the GA and TAP groups at 48 hours (P = .002), whereas the difference between EPI and TAP at 48 hours was not significant (P = .098). Additional opioid requirements between 48 and 72 hours after surgery (ΔMME₁) showed a significant difference between EPI and TAP (P = .045). All groups had significantly different MMEs at 72 hours, with no significant differences observed at 120 hours. Secondary outcomes were not significantly different across the groups. ConclusionsTAP blocks provide effective postoperative pain control with decreased opioid requirements similar to EPI anesthesia during the first 48 hours postoperatively. This factor makes TAP blocks a viable alternative to EPI anesthesia in open AAA repairs. Further multicenter studies are recommended to validate these findings.

A Clinical Prospective Randomised Comparative Study Of Ultrasound Guided Bilateral Subcostal Transversus Abdominis Plane Block And Port Site Infiltration With Bupivacaine For Post-Operative Analgesia In Patients Undergoing Laparoscopic Cholecystectomy.

Background: Post-operative pain management is critical in laparoscopic cholecystectomy to enhance patient recovery and satisfaction. This study compares the efficacy of ultrasound-guided bilateral subcostal transversus abdominis plane (TAP) block and port site infiltration with bupivacaine for post-operative analgesia. Methods: In this prospective, randomized, comparative study, 60(30/30) patients undergoing elective laparoscopic cholecystectomy were randomly assigned to one of two groups: Group A received an ultrasound-guided bilateral subcostal TAP block with 0.25% bupivacaine (20 ml on each side), while Group B received port site infiltration with 0.25% bupivacaine (5 ml per port). The primary outcome was the duration of post-operative analgesia, assessed by the time to first rescue analgesic request. Secondary outcomes included total analgesic consumption in the first 24 hours post-operatively, pain intensity measured by the Visual Analog Scale (VAS) at 1, 4, 8, 12, and 24 hours, and any complications related to the procedures. Results: The TAP block group (Group A) demonstrated a significantly longer duration of analgesia compared to the port site infiltration group (Group B) (p &lt; 0.05). Group A also exhibited lower total analgesic consumption and lower VAS scores at all time points. No significant complications were observed in either group. Conclusion: Ultrasound-guided bilateral subcostal TAP block with bupivacaine provides superior post-operative analgesia compared to port site infiltration in patients undergoing laparoscopic cholecystectomy, with a longer duration of pain relief and reduced analgesic requirements. This technique should be considered a viable option for enhancing post-operative recovery in these patients.

Comparison of erector spinae plane and transversus abdominis plane block for postoperative analgesia after caesarean delivery under spinal anaesthesia: A randomised controlled trial

BackgroundTruncal blocks contribute to multimodal analgesia that enhances early recovery after caesarean delivery. The transversus abdominis plane (TAP) block is an established technique that offers somatic abdominal wall analgesia. The erector spinae plane (ESP) block is a fascial plane technique that may offer additional visceral analgesic effects. This study hypothesized that ESP block would offer superior analgesic efficacy to TAP block in women undergoing caesarean delivery under spinal anaesthesia. MethodsSixty-six ASA physical status grade 1–3 (≥18 years) patients undergoing elective caesarean delivery under spinal anaesthesia were randomly allocated to receive either bilateral ultrasound-guided TAP (N = 33) or ESP blocks at the T9 vertebral level (N = 35). The primary outcome measure was 24-hour cumulative morphine consumption. The secondary outcomes included time to first analgesic request, duration of block placement, numeric rating scale (NRS) pain scores at rest and movement, effect of pain on activities of daily living (ADLs) and care for the infant, patient analgesic satisfaction, frequency and severity of opioid-related side effects. ResultsThere was no statistically significant difference in mean (95% CI) 24-hour cumulative morphine consumption between groups: 32.0 (27.0 to 37.0) mg with TAP versus 27.0 (19.9 to 34.0) mg with ESP (p = 0.16). The mean (SD) duration of block placement was longer for ESP than for TAP blocks (10.7 (2.2) minutes versus 9.0 (2.5) minutes; p = 0.004). There were no significant differences in the other secondary outcomes. ConclusionThis study found similar postoperative opioid use and analgesic efficacy between ESP and TAP block after caesarean delivery performed under spinal anaesthesia.Trial Registration: South African National Clinical Trial Registry (DOH-27-102022-5278): https://sanctr.samrc.ac.za/TrialDisplay.aspx?TrialID=8100, Pan African Clinical Trials Registry (PACTR202301645957324): https://pactr.samrc.ac.za/TrialDisplay.aspx?TrialID=24267.

Ultrasound-guided subcostal transversus abdominis plane block versus erector spinae plane block for post-operative pain after percutaneous nephrolithotomy: A comparative observational study

In India, about 12% of the population has kidney stones, and out of these about 50% may end up with some kidney function loss or renal damage percutaneous nephrolithotomy (PCNL) is accepted as the procedure of choice for large or complex renal stones. Significant post-operative pain can occur after PCNL in first 24 hours due to distension in the renal capsule and pelvicalyceal system. The study aim was to compare the efficacy of ultrasonography guided subcostal transversus abdominis plane block with erector spinae plane block in PCNL. This observational study included 67 consecutive cases (16-65 years, ASA grade I-II) divided into 2 groups. Group A (n=33) received subcostal transversus abdominis plane (SCTAP) block and Group B (n=34) received erector spinae plane block (ESPB). Post operative pain in terms of pain scores, opioid consumption, requirement of rescue analgesic in first 24 hours was noted. Quality of recovery and any adverse events were also noted. Post-operative opioid consumption was significantly less in ESPB group (34.41 ± 27.32 mcg), compared to SCTAP Group (270.91 ± 121.41 mcg). Group B patients had better post operative quality of recovery compared to Group A patients. VAS pain scores at almost all time-points were lower in the ESPB group. ESPB provided effective postoperative analgesia and reduced fentanyl consumption postoperatively compared to SCTAP block.

Retrospective review of surgeon administered transversus abdominis plane blocks at emergency caesarean.

Effective analgesics with minimal side effects are imperative for patient and neonate wellbeing postpartum. Post-caesarean section ultrasound-guided transversus abdominis plane (TAP) blocks have proven safety and efficacy. Surgical TAP blocks appear effective and require little time and equipment. No previous examination of surgical TAP blocks in patients having undergone emergency caesarean section has been undertaken. To investigate surgical TAP block and multimodal analgesic use during emergency caesarean section, the effect on surgical time, post-operative analgesia use, and admission length. We performed a retrospective review of 250 patients who underwent emergency caesarean in 2022. Surgical TAP blocks were performed with 20 mL of 0.375% ropivacaine either side. Primary outcomes included surgical time, length of admission, time to first request of rescue opiate, opiate use in first post-operative 24 h, total dose used during admission, and opiates prescribed on discharge. Ninety-six patients received surgical TAP blocks, and 154 did not. There were no statistically significant differences in the primary outcomes. Subgroup analyses were performed in patients who did not receive intrathecal morphine, body mass index over 30 kg/m2, for patients whom this was their first caesarean, and for TAP blocks versus local infiltration to the wound. There were no significant differences in the primary outcomes in these subgroups. Surgical TAP blocks did not prolong surgical time or decrease post-operative analgesia use or admission length in patients having undergone emergency caesarean. Patient-tailored multimodal analgesia is encouraged, although more research is needed.

Preoperative Bilateral External Oblique Intercostal Plus Rectus Sheath Block for Postoperative Pain Management Following Laparoscopic Cholecystectomy: A Noninferior Double-Blind Placebo-Controlled Trial.

The transversus abdominis plane (TAP) block has proven efficacy and is an important component of multimodal analgesia in laparoscopic cholecystectomy (LC). The external oblique intercostal (EOI) block can provide a dermatomal sensory blockade of T6 to T10 using an anterior axillary line injection. The bilateral rectus sheath (RS) block can significantly reduce early postoperative pain caused by umbilical or periumbilical incisions. The current study aimed to compare the analgesic efficacies of ultrasound-guided subcostal TAP (UG-TAP) combined with the RS block and ultrasound-guided EOI (UG-EOI) combined with the RS block for LC. Patients were randomly assigned to TAP or EOI group. Patients in TAP group received UG-TAP combined with an RS block. Patients in EOI group received UG-EOI combined with an RS block. The primary outcome was postoperative 24-hour sufentanil consumption. A total of 49 patients were included in the final analysis. The postoperative 24-hour sufentanil consumption in the EOI group was significantly lower than that in the TAP group (9.79±10.22 vs. 18.67±12.58µg; P [noninferiority] <0.01; noninferiority confirmed). Fewer patients in the EOI versus TAP group had a numerical rating score of >3 during motion. Furthermore, the mean postoperative 48-hour sufentanil consumption was lower in the EOI versus TAP group (11.54±11.70 vs. 23.04±17.10µg; P =0.01). The mean postoperative 24-hour Quality of Recovery-15 score was higher in the EOI versus TAP group (135.21±4.40 vs. 131.91±5.11; P =0.02). These findings suggest that UG-EOI combined with an RS block was superior to UG-TAP combined with an RS block for postoperative pain management in patients undergoing LC.

Use of Dexamethasone with Local Anaesthetic in Ultrasound-Guided Transversus Abdominis Plane Block – A Narrative Review

Use of Dexamethasone with Local Anaesthetic in Ultrasound-Guided Transversus Abdominis Plane Block – A Narrative Review

Comparison of laparoscopic-guided versus ultrasound-guided TAP block in laparoscopic cholecystectomy

Comparison of laparoscopic-guided versus ultrasound-guided TAP block in laparoscopic cholecystectomy

Transversus Abdominis Plane Block Following Cesarean Section: A Prospective Randomized Controlled Study Comparing the Effects on Pain Levels of Bupivacaine, Bupivacaine + Dexmedetomidine, and Bupivacaine + Dexamethasone.

Background: The transversus abdominis plane (TAP) block is providing effective postoperative analgesia in patients undergoing cesarean section (CS). This study aims to evaluate and compare the effects on pain levels of bupivacaine alone versus bupivacaine combined with dexmedetomidine and bupivacaine combined with dexamethasone in ultrasound-guided TAP block for postoperative pain after CS. Material and Method: In this randomized controlled trial, 120 patients with American Society of Anesthesiologists (ASA) physical status I and II scheduled for elective cesarean section under spinal anesthesia were randomly divided into three groups. At the end of the surgery, an ultrasound-guided TAP block was performed on all patients: bupivacaine 0.5% (Group B), bupivacaine 0.5% + dexmedetomidine (1 µg/kg) (Group BD), and bupivacaine 0.5% + dexamethasone (4 mg) (Group BDx). Postoperatively, all patients were evaluated at 0, 1, 4, 8, 16, and 24 h for visual analog scores VASs, tramadol consumption, complications, and patient satisfaction. A p value of < 0.05 is statistically significant. Results: At 0 h, VASs in the sitting and supine positions were significantly higher in the BDx group (0.85 ± 1.61 and 0.85 ± 1.36, respectively) compared to the B group (0.05 ± 0.32 in both positions) and the BD group (0.15 ± 0.48 in both positions) (p = 0.005 and p = 0.001, respectively). At the 24th hour, VASs in the sitting and supine positions were significantly lower in the BDx group (1.7 ± 1.2 and 1.43 ± 1.05) compared to the B group (2.3 ± 0.68 and 2.2 ± 0.72) and the BD group (2.57 ± 1.01 and 2.28 ± 0.78) (p = 0.005 and p = 0.001, respectively). At 0 h, the tramadol requirement was highest in the BDx group at 12.5%, while it was not required in the B and BD groups (p = 0.005). At 0 h, the rate of nausea and vomiting was highest in the BDx group at 17.5%, compared to 2.5% in the BD group and 0% in the B group (p = 0.003). Patient satisfaction scores were higher in the dexamethasone group compared to the other groups. This was significant between Group B and Group BDx (p = 0.009 < 0.05). Conclusions: Adding dexmedetomidine or dexamethasone to bupivacaine in ultrasound-guided TAP blocks reduces postoperative pain and increases patient satisfaction after cesarean sections. Dexamethasone, due to its delayed onset but extended duration, achieves lower pain scores and higher satisfaction. Further research is necessary to confirm these findings.

Comparative Study between Fentanyl and Dexmedetomidine as Adjuvants to Bupivacaine 0.5% in Ultrasound-Guided TAP Block for Postoperative Pain Management after Elective Cesarean Section

Abstract Background Analgesia is very important after cesarean section because it improves ambulation and enables the mother to give optimal care for the neonate in the immediate postoperative period. Opioids are widely used, but their side effects limit their application. Transversus abdominis plane (TAP) block has been proved to be a useful and safe alternative technique to provide analgesia following abdominal surgeries. Objective to compare the duration of analgesia produced by two drugs fentanyl and dexmedetomidine as adjuvants to bupivacaine in TAP block under ultrasound-guidance after cesarean section in a randomized controlled trial. Patients and Methods In our study, 40 patients were randomly divided into 2 equal groups. The control group received 50 mcg of fentanyl added to bupivacaine on each side. The study group received 50 mcg of dexmedetomidine added to bupivacaine on each side. All patients received equal volumes. Our study showed that addition of a 50 mcg of dexmedetomidine to bupivacaine in ultrasound-guided TAP block has statistically significant effect on the hemodynamic stability of the patients. In addition, dexmedetomidine prolonged the duration of analgesia significantly, as proved by the time of request of first rescue analgesia. Moreover, in dexmedetomidine group, postoperative analgesic requirements were greatly lesser than that of fentanyl group. This makes dexmedetomidine with bupivacaine more superior than the use of fentanyl with bupivacaine. Results In our study, the total rescue analgesia consumed in 24 h postoperatively which was pethidine was less in the TAP-D group (75 ± 25.6 mg) than in the TAP-F group (112.5 ± 42.5 mg). In this study, regarding the measurement the time to the first dose of analgesic received postoperatively, there was a long duration needed in TAP-D group compared to the TAP-F (control group) with the p- value &amp;lt; 0.0001. The time to the first rescue analgesia in the TAP-D group was (659.7 ± 20.99 min.) and for the TAP-F group, it was (512.75 ± 18.1 min.). Conclusion Dexmedetomidine delayed the time to first rescue analgesia when added to bupivacaine in TAP block using ultrasound-guided technique and improved patients’ outcome with decrease in the total pethidine consumption and more hemodynamic stability in comparison to the addition of fentanyl to bupivacaine.

Analgesic effect of nulbuphine-bupivacaine combination in ultrasound guided Transversus abdominis plane block in patients undergoing major abdominal cancer surgeries.

Analgesic effect of nulbuphine-bupivacaine combination in ultrasound guided Transversus abdominis plane block in patients undergoing major abdominal cancer surgeries.

Analgesic effect of ultrasound-guided transversus abdominis plane block with or without rectus sheath block in laparoscopic cholecystectomy: a randomized, controlled trial

BackgroundUltrasound-guided transversus abdominis plane (TAP) block is commonly used for pain control in laparoscopic cholecystectomy. However, significant pain persists, affecting patient recovery and sleep quality on the day of surgery. We compared the analgesic effect of ultrasound-guided TAP block with or without rectus sheath (RS) block in patients undergoing laparoscopic cholecystectomy using the visual analog scale (VAS) scores.MethodsThe study was registered before patient enrollment at the Clinical Research Information Service (registration number: KCT0006468, 19/08/2021). 88 American Society of Anesthesiologist physical status I-III patients undergoing laparoscopic cholecystectomy were divided into two groups. RS-TAP group received right lateral and right subcostal TAP block, and RS block with 0.2% ropivacaine (30 mL); Bi-TAP group received bilateral and right subcostal TAP block with same amount of ropivacaine. The primary outcome was visual analogue scale (VAS) for 48 h postoperatively. Secondary outcomes included the use of rescue analgesics, cumulative intravenous patient-controlled analgesia (IV-PCA) consumption, patient satisfaction, sleep quality, and incidence of adverse events.ResultsThere was no significant difference in VAS score between two groups for 48 h postoperatively. We found no difference between the groups in any of the secondary outcomes: the use of rescue analgesics, consumption of IV-PCA, patient satisfaction with postoperative pain control, sleep quality, and the incidence of postoperative adverse events.ConclusionBoth RS-TAP and Bi-TAP blocks provided clinically acceptable pain control in patients undergoing laparoscopic cholecystectomy, although there was no significant difference between two combination blocks in postoperative analgesia or sleep quality.

Optimal approach for ultrasound-guided transversus abdominis plane (TAP) blocks for abdominal surgeries: a protocol for systematic review and meta-analysis

IntroductionTransversus abdominis plane (TAP) blocks are commonly used for postoperative analgesia after various abdominal surgeries. There are several different approaches for performing TAP blocks, mainly including posterior, lateral and subcostal...

Laparoscopic assisted versus ultrasound guided transversus abdominis plane block in laparoscopic bariatric surgery: a randomized controlled trial

BackgroundTransversus abdominis plane block (TAPB) guided by laparoscopy and ultrasound showed promise in enhancing the multimodal analgesic approach following several abdominal procedures. This study aimed to compare the efficacy and safety between Laparoscopic (LAP) TAP block (LTAP) and ultrasound-guided TAP block (UTAP) block in patients undergoing LAP bariatric surgery.Patients and methodsThis non-inferiority randomized controlled single-blind study was conducted on 120 patients with obesity scheduled for LAP bariatric surgeries. Patients were allocated into two equal groups: LTAP and UTAP, administered with 20 mL of 0.25% bupivacaine on each side.ResultsThere was no statistically significant difference in the total morphine consumption, Visual Analogue Scale (VAS) score at all times of measurements, and time to the first rescue analgesia (p > .05) between both groups. The duration of anesthesia and duration of block performance were significantly shorter in the LTAP group than in the UTAP group (p < .001). Both groups had comparable post-operative heart rate, mean arterial pressure, adverse effects, and patient satisfaction.ConclusionsIn LAP bariatric surgery, the analgesic effect of LTAP is non-inferior to UTAP, as evidenced by comparable time to first rescue analgesia and total morphine consumption with similar safety blocking through the low incidence of post-operative complications and patient satisfaction.Trial registrationThe study was registered in Pan African Clinical Trials Registry (PACTR) (ID: PACTR202206871825386) on June 29, 2022.

Comparison of USG guided with Anatomical Landmark guided TAP Block following Total Abdominal Hysterectomy

A crucial part of a multimodal anaesthetic strategy utilized to accelerate recovery following lower abdominal procedures is the Transversus Abdominis Plane (TAP) Block. The TAP Block is administered in the petit triangle, with its base being formed by the iliac crest, the external oblique in front of it, and the latissimus dorsi at its rear. The intercostal, subcostal, iliohypogastric, and ilioinguinal nerves are housed in this interfascial plane. The TAP block reduces pain from the incision site during both inpatient and outpatient surgical procedures, as well as open and laparoscopic abdominal operations, by obstructing sensory signals from the nerves providing the anterior wall of the abdomen (anterior division of the segment of the spinal cord responsible for T6-L1). Postoperative pain can be effectively alleviated with TAP blocks. Through the use of supplementary drugs such as opioids, opioid agonist antagonists, ketamine, and alpha-2 agonists, including Nalbuphine, clonidine, and dexmedetomidine in blockade of peripheral nerves and field blocks, the duration of pain relief following surgery can be extended. Specifically, a combination of 10 mg of Nalbuphine and bupivacaine, on either side with a volume of 20 ml, improves patient comfort and pain management, allows for early patient mobilization, prolongs postsurgical pain relief, and lowers the need for rescue analgesia. This research aims to assess the efficacy of the Anatomical Landmark against Ultrasound-Guided TAP Block for patients undergoing Total Abdominal Hysterectomy under Subarachnoid Block.

Surgeon-administered regional nerve blocks during radical cystectomy: a feasibility study.

To describe the technique for surgeon-administered, ultrasound-guided transversus abdominis plane (SU-TAP) blocks performed during radical cystectomy as a component of multimodal, perioperative pain management. Retrospective, case series of patients receiving SU-TAP blocks just prior to incision for RC. TAP blocks were performed by the surgeon with a standard technique using US guidance to instill an anesthetic solution. The primary outcome was opioid consumption at the intervals of 0-12, 12-24, 24-36, and 36-48h postoperatively. Opioid consumption was reported as oral morphine milligram equivalents (MME). Secondary outcomes included time to perform SU-TAP blocks, and safety of block procedure. 34 patients were included. During the median length of stay of 4days (interquartile range [IQR] 3-7), only 30/34 (88%) of patients required opioids within the first 12h post-op, decreasing to 38% by 48h post-op. The median consumption decreased in the first 48h from 21 MMEs (IQR 9-38) to 10 MMEs (IQR 8-15) at the 0-12 and 36-48h intervals, respectively. The median time to perform block procedure was 6min (IQR 4-8min) and there were no safety events related to the SU-TAP blocks. Limitations include no comparative arm for opioid consumption. Our data suggest that urologists may feasibly perform US-guided TAP blocks as a practical, efficient, and safe method of regional anesthesia. SU-TAP blocks should be considered in ERAS protocols for RC. Future comparative studies on opioid consumption compared to local infiltration and alternative block techniques are warranted.