Received Transversus Abdominis Plane Block Research Articles

A Comparative Study between Ultrasound Guided Ilioingunial/Iliohypogastric Nerve Block versus Transversus Abdominis Plane Block in Patients Undergoing Unilateral Oblique Inguinal Hernia Repair

Abstract Background Combined ilioinguinal-iliohypogastric (IIN/IHN) block and transversus abdominis plane (TAP) block are used under ultrasound (USG) visualization for postoperative pain control in patients undergoing unilateral inguinal hernia repair surgery. Patients and Methods This study compares USG-guided TAP versus IIN/IHN block for post-operative analgesia efficacy in adults undergoing inguinal hernia surgery, among 60 patients randomized into group A received IIN+IHN blocks by using levobupivacaine 0.25% 20 ml and group B received TAP block by using levobupivacaine 0.25% 20 ml after induction of general anesthesia. Results There is highly statistically significant increase mean of ilioinguinal /illiohypogastric block (II/IH) group compared to TAP block group according to time to rescue analgesia (min) (p < 0.001). Conclusions USG-guided IIN/IHN block delays the need for rescue analgesia and reduces the postoperative analgesic requirement compared to USG-guided TAP block.

Effect of Intraoperative Lung Recruitment and Transversus Abdominis Plane Block in Laparoscopic Bariatric Surgery on Postoperative Lung Functions: A Randomized Controlled Study

Abstract Background Morbid obesity may cause a restrictive condition. general anesthesia (GA) and supine posture both result in a decrease in lung capacity and Functional residual capacity (FRC), encouraging the development of atelectasis, altering the ventilation/perfusion ratio and raising the pulmonary shunt. This study evaluated the impact of recruitment maneuver (RM) and Transversus Abdominis Plane (TAP) block performed during laparoscopic bariatric surgery on spirometry, oxygenation, hemodynamic variables, opioid requirements and pain score assessed after surgery. Methods This pilot prospective randomized controlled study included 80 patients scheduled for elective laparoscopic bariatric surgeries (e.g., laparoscopic sleeve gastrectomy, and laparoscopic gastric bypass) under GA. Patients were divided into four equal groups. All patients had received standardized postoperative analgesia regimen, group I (control group), group II received TAP block after intubation and before surgical incision, group III received RM after intubation and after pneumoperitoneal exsufflation, and group IV received RM after intubation and after pneumoperitoneal exsufflation and TAP block after intubation and before surgical incision. Results Forced Vital Capacity “FVC”, Forced Expiratory Volume “FEV1” were found to be significantly higher after operation in group IV compared to other groups. FEV1/FVC was insignificantly different among the four groups before and after operation. Intraoperative PaO2, PaO2/FiO2 were significantly higher in group III and IV compared to other groups. Numerical rating scale (NRS) at 1, 2, 4, 6 and 12hr had significantly decreased in group II and IV compared to other groups. Heart rate (HR) and mean arterial blood pressure (MAP) were insignificantly different among the four groups. Morphine consumption was significantly lower in group II and IV compared to other groups. Conclusions TAP block combined with RM group exhibited better postoperative pulmonary function tests (PFTs). Intraoperative oxygenation was higher in RM groups. NRS and opioid consumption were lower in TAP groups in postoperative period.

A COMPARATIVE STUDY OF EFFECT OF DEXMEDETOMIDINE AND DEXAMETHASONE AS AN ADJUVANT TO 0.2% ROPIVACAINE FOR ULTRASOUND GUIDED TRANSVERSUS ABDOMINIS PLANE BLOCK FOR INFRAUMBILICAL SURGERIES

Background: The relief of pain and suffering is, and always has been, one of the primary concerns of mankind and one of the prime factors that has influenced the course of history of medicine. Transversus abdominis plane (TAP) block is a regional anaesthetic technique which blocks the abdominal neural afferents by introducing local anaesthetic into the neuro-fascial plane between the internal oblique and the transversus abdominis muscle. Aim: To compare the efficacy of Dexmedetomidine and dexamethasone as an adjuvant to 0.2%ropivacaine in ultrasound guided transverses abdominis plane block in infra umbilical surgeries in terms of, 1. Time to initial postoperative pain. 2. Time to initial rescue analgesia. 3. Quality of block.. 4. Total postop analgesic consumption. 5. Patient satisfaction with regard to pain relief. 6. Post-operative nausea and vomiting. Materials And Methods: We included 80 patients of age between 18-60 years of American Society of Anesthesiologists status (ASA)I and II scheduled for elective infraumbilical surgeries in our study. We randomly allotted these patients into two groups namely Group A and Group B of each. Patients in Group APatients who received transversus abdominis plane block with - 18ml Ropivacaine 0.2%+ 2 ml Dexamethasone 8mg. Patients in Group B received transversus abdominis plane block with-18ml Ropivacaine 0.2%+ 2 ml Dexmedetomidine .This TAP block was given soon after the surgery is completed. The duration of block and regression of sensory block, time for rescue analgesia, degree of sedation, hemodynamic parameters, post operative analgesia and adverse effects were noted. Result: The two groups were comparable on the basis of duration of surgery, site of surgery, ASA and BMI. Heart rates and mean arterial pressure were compared and it was found to be significantly lower in group B compared to group A until initial 5 hours. In our study we found that the visual analogue score at rest and on coughing between groups A and B was statistically insignificant. However, the time to first rescue analgesia (330 mins vs 240 mins) and total analgsic consumption in the 24 hours period post operatively was significantly lesser for group A compared to group B. Ramsey sedation score was significantly higher in group B compared to group A until 8 hourspost operatively. Nausea and vomiting in 3 cases of group A , and 2 cases in group B. No other significant side effects were noted. Conclusion: USG-guided TAP block is an effective and safe adjunct for postoperative analgesia in infra umblical surgeries. Addition of dexamethasone as an adjuvant prolongs the duration and reduces post-operative analgesic requirement in patients significantly more than dexmedetomidine whereas dexamethasone provides better control of the heart rate and mean arterial pressure.

Transversus Abdominis Plane Block versus Epidural Anesthesia for Pain Management Post-Caesarean Delivery: A Pilot Study.

Effective post-operative analgesia profoundly influences patient recovery and outcomes after caesarean delivery. The Transversus Abdominis Plane (TAP) block represents a potential alternative, potentially offering greater effectiveness than epidural analgesia while causing fewer adverse effects. To assess if the abdominal transverse block provides superior postoperative pain relief in patients undergoing caesarean delivery compared to epidural analgesia. Participants were divided into parallel groups: an experimental group receiving TAP block (n=25) and a control group receiving epidural analgesia (n=24). All patients received a 10 mg dose of hyoscine at the end of the surgery. Experimental Group received a total of 20 mL of 0.2% ropivacaine. In Epidural group received 0.2% ropivacaine at 4 mL/h for 24 hours. All participants were administered combined with neuroaxial block anesthesia. The patients selected for epidural analgesia received the mentioned dose, while the other group block had the epidural catheter removed after the cesarean section. The primary outcome was post-caesarean pain, evaluated using the Visual Analog Scale (VAS) at four intervals (0, 6, 12, and 24 hours). Also, surgical bleeding and residual motor were evaluated. VAS pain scores between the groups were compared using the Friedman test and Generalized Linear Model (GLM) for non-normally distributed data. The effect size was estimated with Eta Square ([Formula: see text]), considering values ≥0.38 as indicative of large effects. A two-tailed p-value < 0.05 was deemed statistically significant. Statistically significant differences in pain scores were noted at 0 and 6 hours post-surgery (p<0.01). The TAP block group reported lower pain scores at 0 hours (mean=0.04) and 6 hours (mean=1.16) compared to the epidural group, reflecting a substantial effect size. The TAP block proves advantageous in mitigating postoperative pain for women post-caesarean delivery, particularly in the initial 6 postpartum hours. This relief promotes early mother-infant bonding and facilitates breastfeeding.

Effect of dexamethasone as an adjuvant to levobupivacaine in transversus abdominis plane (TAP) block for postoperative analgesia in subjects undergoing lower segment cesarean section

Background: Inadequate pain relief after caesarean section is a common problem in every part of the world. Transversus abdominis plane (TAP) block provides adequate post-operative pain relief following abdominal surgeries. TAP block duration is limited to effect of administered local anesthetics. Hence, adjuvant medications are added to local anaesthetic (LA) to prolong the effect of TAP block. The primay objective of this study was to analyse the analgesic effect of dexamethasone added to levobupivacaine in comparison with analgesic effect of levobupivacaine alone in TAP block. The secondary objectives are to analyse the number of supplemental analgesic requirements in the first 24 hrs after surgery and to analyse the duration of postoperative analgesia which is time to first analgesic request from the time of TAP block. Methods: 116 women scheduled for lower segment cesarean section (LSCS), belonging to ASA physical status 2 or 3, aged between 18 and 35 years, under SAB were recruited. Ultrasonogram (USG) guided TAP block was performed on each side after the completion of the surgery. Subjects in group L (n = 58) received TAP block on each side with 20 ml of 0.375% levobupivacaine and group LD (n = 58) with 19 ml of 0.375% levobupivacaine + 1ml (4mg) of dexamethasone. They were evaluated for pain at 10min, 30min, 45min, 1hour, 2hrs, 4hrs, 8hrs, 12hrs and 24hrs after the block using visual analog scale (VAS) score. Duration of postoperative analgesia and requirement of rescue analgesia were also analysed. Results: The post-operative visual analogue scale (VAS) scores were lower in group LD at 8, 12 and 24 hrs (p &lt; 0.05). Mean duration of analgesia was significantly prolonged in group LD with lesser requirement of rescue analgesics (p &lt; 0.05) up to 24 hrs. Conclusion: Dexamethasone (4 mg) as an adjuvant to levobupivacaine in USG guided TAP block reduces post-operative pain scores prolongs the duration of analgesia and decreases demands for rescue analgesics.

Comparison of levobupivacaine with dexamethasone versus levobupivacaine for ultrasound-guided transversus abdominis plane block in lower abdominal surgeries in a tertiary care hospital in Chengalpattu district – A randomized control trial

Introduction: Transversus abdominis plane (TAP) block is a regional technique for analgesia of the anterolateral abdominal wall. Ultrasound guidance is now considered the gold standard in TAP blocks. It involves the injection of a local anesthetic solution into a plane between the internal oblique muscle and transversus abdominis muscle. Since the thoracolumbar nerves originating from the T6 to L1 spinal roots run into this plane and supply sensory nerves to the anterolateral abdominal wall, the local anesthetic spread in this plane can block the neural afferents and provide analgesia to the anterolateral abdominal wall. Levobupivacaine is a local anesthetic from the amino amide class of medications. Adjuvants are drugs when added along with local anesthetics have a synergistic action to improve the duration and quality of analgesia. Objectives: The objective of this study was to study the effectiveness of ultrasound-guided transversus abdominis plane block using levobupivacaine with dexamethasone in terms of hemodynamic stability and duration of postoperative analgesia and pain scores (visual analog scale [VAS]), time of requirement of rescue analgesics among patients who have undergone lower abdominal surgeries. Methods: This is a double-blinded randomized control trial. This study was conducted among 60 patients who have undergone lower abdominal surgeries in a tertiary care hospital. Postsurgery, intraoperatively prior shifting out the patient, two groups received transversus abdominis plane block, one received 28 ml of 0.25% levobupivacaine with 2 ml of normal saline and another group received 28 ml of 0.25% levobupivacaine with 2 ml (8 mg) dexamethasone. Duration of postoperative analgesia and the efficacy between the two groups were compared with hemodynamic parameters and VAS score. Results: The study groups were not significantly different in terms of demographic data or the American Society of Anesthesiologists Grading. The mean onset of breakthrough pain was significantly higher in the L group. The time of requirement of rescue analgesics was also significantly shorter in the L group compared to the LD group. The VAS pain score was significantly lower in the Group LD as compared to the L group. Conclusion: Hence, it was noticed that dexamethasone when added to levobupivacaine had better hemodynamic stability in terms of blood pressure, heart rate, saturation, respiratory rate, and mean arterial pressure. The requirement of rescue analgesics was also reduced in this group and the time of breakthrough pain was also prolonged. This group had significantly lower pain scores.

Comparison of the analgesic efficacy of two different fascial blocks in patients undergoing laparoscopic inguinal hernia surgery: A randomized control trial.

Moderate-to-severe intensity pain is reported on the first day following lower abdominal surgery. No study has compared transversus abdominis plane (TAP) block with retrolaminar block (RLB) in laparoscopic inguinal hernia surgery for postoperative pain relief. In this prospective, randomized trial, 42 male patients of American Society of Anesthesiologists (ASA) physical status I and II, aged 18-65 years, and having a BMI <40 kg/m2 received TAP or RLB following laparoscopic inguinal hernia surgery. A standard general anesthetic technique was performed. Patients were randomized into two groups: single-shot TAP block (group I) (n = 21) or the RLB (group II) (n = 21) with bilateral 20 ml of 0.375% ropivacaine. Postoperatively, IV paracetamol 1 g was administered as rescue analgesia. Postoperative cumulative Visual Analogue Scale (VAS) score 24 hours after surgery was considered as the primary outcome. Postoperative cumulative VAS score at rest at 24 h, represented as mean ± S.D (95% CI), in the TAP block group was 3.54 ± 3.04 (2.16-4.93) and in the RLB group was 6.09 ± 4.83 (3.89-8.29). P value was 0.112 and VAS on movement was 7.95 ± 3.41 (6.39-9.50 [2.5-15.0]) in TAP block group, whereas P value was 0.110 and VAS on movement was 10.83 ± 5.51 (8.32-13.34) in the RLB group. Similar postoperative cumulative pain score on movement at 24 h was present in patients receiving TAP block or RLB. However, VAS score at rest and on movement was reduced in patients receiving TAP block at 18 and 24 h postoperatively.

The Impact of Missing Postoperative Longitudinal Pain Data on Study Results Investigating Analgesia from Transversus Abdominis Plane Block on Postoperative Day One Following Abdominal Surgery: A Single-Center Retrospective Chart Review.

The aims of this study are to analyze the association between the number of recorded pain scores and baseline pain following surgery, analgesia technique, and patient demographics, as well as the substitution of missing data with the results from mean substitution, last observation carried forward, regression imputation, multiple imputation, and mixed models. This retrospective chart review was approved by the Institutional Review Board (IRB). The following data were collected: patient demographics (age, gender, body mass index (BMI), race, and ethnicity); surgery type and date; analgesia with or without transversus abdominis plane (TAP) block; as well as the time, date, and value for all postoperative pain scores on the first postoperative day (POD). The following null hypotheses were tested: (1) the number of pain recordings will be independent of TAP block analgesia, baseline pain on POD 1, and patient demographics; and (2) there will be no significant differences in pain scores with and without TAP block analgesia following complete case analysis, mean substitution, last observation carried forward, regression imputation, multiple imputation, and mixed models. This study analyzed 486 patients including 2562 recorded pain scores. An increase in age by one year is, on average, associated with a 0.04 (95% confidence interval (CI) -0.060 to -0.025) decrease in the number of pain scores recorded (p < 0.001). Black race is associated with 0.763 less pain scores, on average (95% CI -1.49 to -0.039) and this value is statistically significant (p = 0.039). All datasets with substituted values for missing data yield lower pain scores for patients who did not receive TAP block. Significant differences in recorded pain scores are only noted for scores recorded between 0400 and 0759 and 1600-1959 in mixed models. Discrepancies in pain score recordings among patients are associated with age and black race. When these discrepancies are addressed with statistical methods, clinically significant differences are appreciated.

Necessity of routine perioperative epidural catheter placement in laparoscopic colorectal resections: a retrospective data analysis.

Whether epidural anesthesia leads to further improvement in the postoperative course of colorectal procedures is under discussion. The aim of this study was to evaluate the effects of minimally invasive colorectal oncological interventions without epidural anesthesia (EDA). This retrospective data analysis included the clinical data of all patients who underwent minimally invasive oncological colorectal resection at our clinic between January 2013 and April 2019. Of 385 patients who met the inclusion criteria, 183 (group I; 47.5% of 385) received EDA, and 202 (group II; 52.5% of 385) received transversus abdominis plane block instead. The relevant target parameters were evaluated and compared between the groups. The postoperative complications were graded according to the Clavien-Dindo classification. The patients in group I (n=183; women, 77; men, 106; age 66.8 years) were younger (p=0.0035), received a urinary catheter more often (99.5% versus [vs.] 28.2% p<0.001), required longer, more frequent arterenol treatment (1.1 vs. 0.6 days; p<0.001), and had a longer intermediate care unit stay than those in group II (2.8 vs. 1.1 days; p<0.001). Postoperative pain levels were not significantly different between the groups (p=0.078). The patients in group I were able to ambulate later than those in group II (4 vs. 2 days; p<0.001). The difference in the postoperative day of the first defecation was not significant between the groups (p=0.236). The incidence of postoperative complications such as bleeding (p=0.396), anastomotic leaks (p=0.113), and wound infections (p=0.641) did not differ between the groups. The patients in group I had significantly longer hospital stays than those in group II (12.2 vs. 9.4 days; p<0.001). EDA can be safely omitted from elective minimally invasive colorectal resections, and its omission is not accompanied by any relevant disadvantages to the patient.

Comparative Study of Post-Operative Analgesic Effect between Wound Site Infiltration and Bilateral U/S Guided Transversus Abdominis Plane Block with 0.25% Bupivacaine after Cesarean Section

Abstract Background The analgesic regimen needs to meet the goals of providing safe, effective analgesia, with minimal side effects for the patient, together with inhibition of trauma –induced nociceptive impulses. Objectives This study assessed the postoperative analgesic efficacy of transversus abdominis plane (TAP) block compared to local wound infiltration after cesarean section regarding the pain relief, effect on hemodynamics, requirement of first supplemental doses of analgesia and total number of doses received. All patients were informed with the procedure US guided TAP block and were trained to use the visual analogue scale (VAS). Patients and Methods The study was conducted on 90 randomly chosen patients aged 25 to 55 years, American Society of Anesthesiologists (ASA) class I or II scheduled for cesarean section surgery in Ain Shams University Hospitals after approval of the medical ethical committee. They were allocated in two groups of 45 patients each: TAP block Group: received general anesthesia and 20 ml of 0.25% bupivacaine on each side by midaxillary approach under ultrasound guidance. Local wound infiltration: received general anesthesia and with 0.25% bupivacaine 30 ml at surgical site. Results The results of the study revealed that the Patients who received TAP block had significantly lower pain scores for 12 h after operation and decreased total need of analgesic in first 12 h post-operative compared with patients who received wound infiltration. Conclusion Bilateral TAP block was effective in reducing postoperative pain scores for 12 hours and lower total 12 hours postoperative pethidine consumption after cesarean section under general anesthesia, compared to local wound infiltration. This technique can be a promising mode of postoperative analgesia where epidural catheter insertion is contraindicated.

Transversus abdominis plane block improves postoperative recovery following cesarean delivery under general anesthesia: A propensity score matched retrospective cohort study.

To evaluate the effects of transversus abdominis plane (TAP) block on postoperative recovery 24 h after cesarean delivery under general anesthesia. A propensity-score-matched, retrospective cohort study was used. A total of 173 pregnancies resulting in elective cesarean delivery under general anesthesia between March 2021 and March 2022 were analyzed retrospectively. Patients receiving TAP block were compared with those receiving only intravenous analgesia. The Quality of Recovery 15 (QoR-15) score, assessed 24 h postoperatively using a 15-item questionnaire, was the primary outcome. Secondary outcomes included time to first ambulation, time to first flatus postoperatively, ability to tolerate ambulation, visual analog scale (VAS) score, hospitalization cost, and postoperative nausea and/or vomiting. The total QoR-15 score 24 h postoperatively in the TAP group was significantly higher than in the Control group (P < 0.001). Patients in the TAP group had higher Bruggemann comfort scale scores (P < 0.001), could better tolerate early postoperative ambulation (P < 0.001), and had shorter time to first ambulation (P < 0.001) and flatus (P < 0.001). Correlation analysis demonstrated an inverse relationship between the cumulative VAS pain scores, time to first postoperative ambulation, time to first flatus, and total QoR-15 score 24 h postoperatively. Following cesarean delivery under general anesthesia, TAP block combined with intravenous analgesia can improve postoperative recovery and shorten the time to postoperative ambulation and recovery of intestinal function.

Efficacy of Transversus Abdominis Plane Block for Postoperative Analgesia in Different Lower Abdominal Surgeries in a Tertiary Care Hospital-Chengalpattu District.

Transversus abdominis plane (TAP) block is one of the novel approaches and an effective method for providing postoperative analgesia in patients undergoing lower abdominal surgeries. To evaluate the efficacy and routine usage of TAP block for postoperative analgesia in different lower abdominal surgeries. It is a randomized, double-blind trial. Sixty patients undergoing lower abdominal surgeries in sub-arachnoid block with bupivicaine 0.5% were randomized to undergo TAP block (n = 30) using ropivacaine 0.375% as the study group. In the control group (n = 30), only the standard analgesic regimen (paracetamol 1 gm IV and tramadol 50 mg IV) was given. Postoperative pain was assessed using Visual Analogue Scale (VAS) at 30 min and 4, 8, 12, 16, 20, and 24 hrs. First analgesic request after TAP block was compared with a subsequent number of analgesics given postoperatively. Rescue analgesia given postoperatively at request after TAP block was paracetamol 1 gm IV and tramadol 50 mg IV. Patients who received TAP block had a significant reduction in postoperative pain scores at 30 min - 0 (0 - 1), 4 hrs - 0 (0 - 4), 8 hrs - 4 (3 - 5), 12 hrs - 1 (0 - 4), 16 hrs - 1 (1 - 2), 20 hrs -1 (0 - 2), 24 hrs -1 (0 - 1) with P-value < 0.05 in the first 24 hrs. TAP block also delayed the first rescue analgesic request (265 ± 24 min Vs. 66 ± 15 min with P-value < 0.005) and reduction in subsequent analgesic requirements in the first 24 hrs (1.04 ± 0.26 Vs. 2.3 ± 0.48 with P-value < 0.05). TAP block holds a considerable part in postoperative analgesia. Highly effective for the first 24 hrs in patients undergoing different lower abdominal surgeries, it delays the first rescue analgesic request, decreases the subsequent analgesic requirement, and augments early mobilization, discharge, and cost-effectiveness.

Ultrasound-Guided Transversus Abdominis Plane (TAP) Blocks Vs. Local Infiltration Anesthesia on Post Anesthesia Care Unit (PACU) Pain Control

Abstract Goals/Purpose Ultrasound-guided regional field blocks are not widely used in outpatient plastic surgery.1 These blocks have been shown to significantly decrease the number of prescribed opioids in patients who underwent abdominoplasty, liposuction, and primary submuscular breast operations. 2,3 The goal of this study is to compare ultrasound-guided TAP blocks to local infiltration anesthesia with or without blind rectus sheath blocks in patients undergoing abdominoplasty. Methods/Technique A retrospective review was conducted of patients undergoing outpatient abdominoplasty performed by the senior surgeon. Group 1 (Local) received local infiltration anesthesia with or without blind rectus sheath blocks between April 2009 and December 2013. Group 2 (TAP) received surgeon-led, intraoperative, ultrasound-guided, 4-quadrant TAP blocks between January 2014 and December 2021. Outcomes measured included opioid utilization, morphine milligram equivalents (MME) and pain level at discharge (scale from 1 to 10). All abdominoplasties were performed using the same suture materials and techniques by the senior surgeon in the same accredited outpatient surgical facility. Abdominoplasty technique included supraumbilical undermining, umbilical transposition, rectus abdominis fascial plication, progressive tension sutures, and liposuction of the flanks. Patients were excluded if other procedures were performed at the time of abdominoplasty. Results/Complications 60 patients in each of the two study groups met the study criteria for a total of 120 patients. The study groups were similar except for a lower average age in group 1 (Table 1). Patients receiving TAP blocks (group 2) had significantly lower MME requirements in the PACU (3.48 v 2.21, p=0.005). There was no difference in pain level at discharge between the two groups (2.35 v 2.17, p=0.624), (Table 1). Conclusion Surgeon-led, intraoperative, ultrasound-guided, 4-quadrant TAP blocks statistically significantly reduced opioid utilization by 36.5% in the PACU while achieving comparable patient pain scores.

The transversus abdominis plane block in conjunction with intrathecal morphine use after cesarean section in women with severe pre-eclampsia: a randomized controlled trial

BackgroundThe transversus abdominis plane (TAP) block in conjunction with intrathecal morphine has been demonstrated to provide more superior postcesarean analgesia to intrathecal morphine alone. However, the analgesia efficacy of their conjunction has not been demonstrated in patients with severe pre-eclampsia. The study aimed to compare the postcesarean analgesia of TAP block in conjunction with intrathecal morphine versus intrathecal morphine alone in women with severe pre-eclampsia.MethodsPregnant women with severe pre-eclampsia undergoing planned cesarean section were randomly allocated into 2 groups to receive TAP block with 20 ml of 0.35% Ropivacaine (TAP group) or with the same volume of 0.9% saline (Sham group) after undergoing elective cesarean section under spinal anaesthesia with 15 mg of 0.5% Ropivacaine plus 0.1 mg of morphine. The outcomes for this analysis include the visual analog scale (VAS) pain score at rest and with movement at 4,8,12,24 h after TAP block was performed, times of use of intravenous patient-controlled analgesia (PCA) within 12 h after anesthesia, the occurrence of maternal side effects, maternal satisfaction, and Apgar score at 1 and 5 min of newborns.Results119 subjects receive TAP block with 0.35% Ropivacaine (n = 59)or 0.9% saline (n = 60). At 4,8, 12 h after TAP block, the TAP group reported lower VAS score at rest [at 4 h: 1(0,1) vs. 1(1,2), P < 0.001; at 8 h:1(1,1) vs. 1(1.5,2),P < 0.001; at 12 h:1(1,2) vs. 2(1,2),P = 0.001] and higher satisfaction [53(89.9%) vs.45(75.0%), P < 0.05]. There were no differences between groups in VAS score at 24 h at rest and at all time points above with movement, times of use of PCA within 12 h after anesthesia, maternal side-effect, and Apgar score at 1 and 5 min of newborns.ConclusionsIn conclusion, The TAP block performed in conjunction with intrathecal morphine may not reduce opioid consumption, but it could reduce VAS scores at rest in the first 12 h after cesarean section in women with severe pre-eclampsia, and improve maternal satisfaction, which is worthy of clinical promotion.Trial registrationRegistered at Chinese Clinical Trial Registry(http://www.chictr.org.cn) on 13/12/2021: ChiCTR2100054293.

A Comparative Study of Ultrasound-Guided Quadratus Lumborum Block and Transversus Abdominis Plane Block for Postoperative Analgesia Following Total Abdominal Hysterectomy.

Total abdominal hysterectomy (TAH) results in remarkable postoperative pain.Truncal nerve blocks like the quadratus lumborum (QL)blockand transversus abdominis plane (TAP) block are described to combat this pain. The aim of the present study was to compare the effectiveness of the QL block with the TAPblock in terms of numeric rating scale (NRS) scores as the primary outcome for postoperative pain in TAH. The secondary outcome was time of the first analgesic demand, totalanalgesic demandsrequiredin 24 hr, and patient satisfaction level. Seventy patientsofAmerican Society of Anesthesiologists(ASA) physical status classI andII, aged35-65 years with a body mass index (BMI) 18-30 kg/m2planned forelective TAH under spinal anaesthesiawere randomly allocated into two groups.Group Q received QL blockandGroup T received TAP block under ultrasound guidance with 40 ml of 0.25% bupivacaine ofwhich 20 ml was injected on either side. Demographic data of both groups was comparable. The NRS pain score was significantly lower in Group Qcompared to Group Tat the fourthand sixthhour. The mean first analgesic demand was significantlyearlyin Group Tcompared toGroup Q (5.69 ± 0.87 hr vs. 11.23 ± 2.22 hr) and total analgesic demands were significantly greater in Group T thanGroup Q. The mean patient satisfaction score was significantly highin Group Qcompared to Group T (5.8 ± 0.41vs. 4.74 ± 0.44). The combined posterior and anterior approach of the QL block may represent a more efficacious alternativeto the TAP block in patients afterTAH.Further studies are recommended to evaluate the ideal dose, volume and approach for the QL block.

Effect of Intraoperative Lung Recruitment and Transversus Abdominis Plane Block in Laparoscopic Bariatric Surgery on Postoperative Lung Functions: A Randomized Controlled Study.

Morbid obesity may cause a restrictive condition. General anesthesia (GA) and supine posture both decrease lung capacity and functional residual capacity (FRC), altering the ventilation/perfusion ratio and raising the pulmonary shunt. To evaluate the impact of recruitment maneuver (RM) and transversus abdominis plane (TAP) block performed during laparoscopic bariatric surgery on spirometry, oxygenation, opioid requirements, and pain score assessed after surgery. This pilot prospective randomized controlled study included 80 patients scheduled for elective laparoscopic bariatric surgeries (e.g., laparoscopic sleeve gastrectomy and laparoscopic gastric bypass) under GA. Patients were divided into four equal groups. All patients received a standardized postoperative analgesia regimen. Group I (control group), group II received TAP block after intubation and before surgical incision, group III received RM after intubation and after pneumoperitoneal insufflation, and group IV received RM after intubation and after pneumoperitoneal exsufflation and TAP block after intubation and before surgical incision. Forced vital capacity (FVC) and forced expiratory volume (FEV1) were significantly higher after group IV operation than in other groups. Intraoperative PaO2 and PaO2/FiO2 were significantly higher in groups III and IV compared to other groups. The numerical rating scale (NRS) at 1, 2, 4, 6, and 12h was significantly decreased in groups II and IV compared to other groups. Morphine consumption was significantly lower in groups II and IV compared to other groups. TAP block combined with RM had better postoperative pulmonary function tests. Intraoperative oxygenation was higher in RM.

Efficacy of landmark based blind transverse abdominis plane block for post-operative pain relief in inguinal hernia

Background: Pain after open hernia surgery can be moderate-to-severe and is known to be associated with prolonged hospital stay and delayed return to normal daily activities. Aims and Objectives: We aimed to investigate the effect of a blind landmark-based approach of transversus abdominis plane (TAP) block on patients undergoing elective inguinal hernia repair surgery under spinal anesthesia. Materials and Methods: This was a prospective, randomized, controlled, and clinical trial consisting of 60 patients scheduled for inguinal hernia repair under spinal anesthesia. Patients in Group-1 received TAP block by landmark based blind technique, whereas those in Group-2 did not receive TAP block. Pain assessments were scored for all patients at rest and movement at 2, 4, 6, 12, and 24 h after surgery using visual analog scale. Results: The pain scores in the post-operative period, during rest and movement, were significantly lower in patients that received TAP block. Significant number of cases reported nausea and vomiting or headache in Group-2 due to increase requirement of analgesics for pain relief during first the 24 h of post-operative period. Conclusion: Landmark-based blind TAP block may be an effective way of providing analgesia in patients undergoing elective open inguinal hernia repair under spinal anesthesia.

Comparison of the effectiveness of transversus abdominis plane block with laparoscopy or ultrasonography in laparoscopic cholecystectomy operations.

This study aims to compare the effectiveness of the Transversus Abdominis Plane (TAP) block applied to reduce postoperative pain in laparoscopic cholecystectomy surgery by ultrasonography (USG) and laparoscopy. A total of 170 patients who underwent laparoscopic cholecystectomy were divided into three groups. Group L received TAP block by laparoscopy, Group U received TAP block by USG, and the control group (Group C) did not receive TAP block. Bilateral subcostal 15 mL 0.5% bupivacaine was used for the TAP block. We recorded patients' demographic data and hemodynamic parameters, surgery time, anesthesia time, time of first postoperative analgesic need, visual analog scale (VAS) scores, time to first flatulence and stool, degree of nausea-vomiting, and the Turkish Revised American Pain Society Patient Outcome Questionnaire (APS-POQ-R-T) scores. We observed no statistically significant differences between the groups in terms of age, gender, or American Society of Anesthesiologists scores, and body mass index was higher in Group U compared to the other groups (p<0.05). The VAS score was significantly higher in the control group at all times compared to the other two groups (p<0.001). VAS measurements were higher in Group U at postoperative 1st and 12th h compared to Group L (p<0.001). Surgery time and anesthesia time were significantly different between the groups (p=0.001). Group C showed high VAS scores, high pain severity by APS-POQ-R-T at the 24th postoperative hour, and low sleep quality and patient satisfaction. For laparoscopic cholecystectomy surgery, applying TAP block with the help of USG is effective in postoperative pain management. Applying TAP block with laparoscopy is easy since it does not require additional preparation or equipment during the procedure and may be preferred in the absence of a USG device.

Evaluation of Effectiveness of Preemptive Intravenous Analgesics versus Postoperative TAP Block in Unilateral Inguinal Hernioplasty—A Prospective Randomized Double-Blind Clinical Trial

Abstract Aim The aim of this study was to compare the extent of analgesia in terms of duration of analgesia and requirement of postoperative analgesics with preemptive analgesia and transversus abdominis plane (TAP) block in patients undergoing inguinal hernioplasty. Materials and Methods Ninety male patients aged between 18 and 65 years of American Society of Anesthesiologists grades I and II undergoing open inguinal hernioplasty were randomly allocated to three comparable groups of 30 each. Control group (group C) received normal saline; preemptive group (group P) received inj. paracetamol, inj. diclofenac, and inj. Lignocaine; and TAP group (group T) received TAP block with 20 mL of 0.25% bupivacaine at the end of surgery. Parameters recorded were verbal numerical rating scale (VNRS) at rest at 4, 12, 24, and 48 hours and VNRS on movement at 12, 24, and 48 hours; heart rate and mean arterial pressure at 0, 4, 12, and 48 hours; time for first analgesic request; and total doses of analgesics consumed at 24 hours. Results Demographic data were comparable. VNRS on movement and number of doses of analgesics consumed at 24 hours were statistically less in group T (4.80 ± .761 hours); time for first request of analgesia was longer and this group had better patient satisfaction scores compared with other groups. Conclusion Both groups P and T provided better VNRS scores compared with group C. TAP block provided better VNRS scores on movement at 24 hours, lesser analgesic requirement, and better patient satisfaction score compared with other groups.

Comparison between Caudal and TAP Blocks Post-Inguinal Surgery Analgesia in Children

Background: The optimal and lonely method to achieve typical analgesia post-inguinal surgeries in children is still not determined. This study compared the analgesic efficacy and adverse effects between caudal analgesia and TAP (Transversus Abdominis Plane) block. Methods: 40 children (male) between 3-9 years old, with parental consent and institutional board approval, undergoing elective inguinal hernia repair surgery, randomly divided in two groups were enrolled in this study. Both groups received induction on Sevoflurane, Fentanyl, Propofol and Atracurium (dose dependent), with laryngeal mask airway and mechanical ventilated, maintenance on Sevoflurane and smoothly recovered. The first group (C) received caudal analgesia of Bupivacaine 0.25% (1ml/kg). The second group (T) received TAP block of Bupivacaine 0.25% (0.5 ml/kg). Pain was assessed by CHEOPS (Children's Hospital of Eastern Ontario Pain Scale). Parents also assessed pain (after explain and orient them) with Wong-Baker scale 0 (no pain) and 10 (worst pain imaginable). Results: The first group (C) of patients had about 240 ± 30 minutes, while the second group (T) had about 360 ± 60 minutes, early ambulation and feeding and finally, most of them missed the pain till they were home discharged. Conclusion: TAP block enhances comfortable long-time post-op state for the patients, especially the young age group as they are hardly pain dealt off. Also TAP block has an easily performed procedure with less dose and complications compared to the caudal ones.