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Background: Acute postoperative pain is associated with poor quality of recovery after surgery. Perioperative use of intravenous lignocaine or dexmedetomidine have demonstrated better pain control, early return of bowel function, and effects on quality of recovery. Methods: Ninety-six women planned for elective robotic abdominal hysterectomy were randomized into four groups. Groups received lignocaine infusion (1.5 mg.kg−1 loading, 2 mg.kg−1.h−1 infusion) (Group I), dexmedetomidine infusion (1 µg.kg−1 loading, 0.6 µg.kg−1.h−1 infusion) (Group 2), lidocaine (1.5 mg.kg−1 loading, 2 mg.kg−1.h−1 infusion), and dexmedetomidine infusions (1 µg.kg−1 loading, 0.5 µg.kg−1.h−1 infusion) (Group 3), and normal saline 10 mL loading, 1 mL.kg−1.h−1 infusion) (Group 4). Primary outcome was visual analogue pain scores at 1, 2, 4, 12, and 24 hours after surgery. Secondary outcomes included postoperative fentanyl requirement, time of return of bowel sounds and flatus, QoR15 score on day 1, 2, and discharge. Results The VAS was significantly lower in Groups 2 and 3 compared to Groups 1 and 4. Total postoperative fentanyl consumption in the first 24 hours was 256.25 ± 16.36 mcg (Group 1), 177.71 ± 16.81 mcg (Group 2), 114.17 ± 16.19 mcg (Group 3), and 304.42 ± 31.26 mcg (Group 4), respectively. Time to return of bowel sounds and passage of flatus was significantly shorter in Groups 2 and 3 (p < 0.01). QoR15 scores after surgery were higher in Group 3 compared to Groups 1, 2, and 4, (p < 0.01) respectively. Conclusion: Combined infusion of lignocaine and dexmedetomidine significantly decreased postoperative pain, fentanyl consumption, and improved quality of recovery score after surgery in patients undergoing Robotic abdominal hysterectomy.

Background The primary indication for using long-acting anesthetics in dentistry is extensive dental procedures that require pulpal anesthesia beyond 90 min and management of postoperative pain. Ropivacaine is an amide local anesthetic that is available at various concentrations with inherent vasoconstrictive properties at low concentrations. Ropivacaine has a 75% greater margin of safety than bupivacaine. Ropivacaine can be a good alternative to bupivacaine as a local anesthetic in dental implant surgery as it provides a longer duration of both pulpal and soft tissue anesthesia after mandibular nerve block and lowers CNS and cardiovascular toxicity. This study aimed to evaluate and compare the clinical efficacy of ropivacaine and lignocaine for implant surgery anesthesia. Methods Fifteen patients with bilateral edentulous sites indicated for implant placement were recruited for this study. Patients aged 20-60 years of both sexes were randomly recruited. Thirty implant placements were performed in the test and control groups using ropivacaine and lignocaine with adrenaline as local anesthetics, respectively. Results The results were analyzed statistically. The duration of anesthesia was significantly higher in the test group than in the control group. Ropivacaine was found to be superior to lignocaine in terms of the quality of anesthesia. The comparison of mean visual analog scale scores showed ropivacaine to have better anesthetic and analgesic effects than the control group. Conclusion Ropivacaine 0.75% provides a significantly longer duration of anesthesia than lignocaine 2% with adrenaline. Ropivacaine 0.75% decreased intraoperative and postoperative analgesia compared to lignocaine 2% with adrenaline. Hence, ropivacaine 0.75% can be used as an alternative to lignocaine in implant surgeries and other intraoral surgical procedures that require a longer duration of anesthesia and analgesia.

Introduction: Dexmedetomidine is a selective alpha-2 adrenoceptor agonist. It is conventionally used as a sedative in the intensive care unit. However, recently, the application of dexmedetomidine as an adjuvant to a local anesthetic agent has been studied. The present study intends to evaluate the effectiveness of dexmedetomidine as an adjuvant to 2% plain lignocaine for surgical removal of impacted mandibular third molar and to compare the efficacy of dexmedetomidine with 2% plain lignocaine with 2% lignocaine and 1:200000 adrenaline. Materials and Methods: A total of 80 patients who required surgical removal of impacted mandibular third molar extraction were included in the study. Patients were randomly divided into two groups using a computer-generated table. Patients in the study group received 2% plain lignocaine with 1 mcg/ml dexmedetomidine. Patients in the control group received 2% lignocaine with 1:200000 adrenaline. The parameters evaluated were onset and duration of action, pulse rate, blood pressure, oxygen saturation, and blood loss. Results: Onset of action was faster and the duration of action was longer when dexmedetomidine was used with lignocaine as a local anesthetic agent. The vital parameters in both the groups were stable. Bleeding at the surgical site was less in the dexmedetomidine group. Conclusion: The study concluded that the combination of dexmedetomidine with lignocaine enhances the local anesthetic potency of lignocaine when injected for nerve blocks.

Background In the field of dentistry, topical anesthetics play an important role in reducing pain during needle pricks. The anesthetic property of betel leaves remain unexplored, even though they have been widely used for the treatment of various ailments. The purpose of this study was to compare and evaluate pain perception following topical application of lignocaine gel, clove gel, ice, and newly developed betel leaf extract gel during intraoral injection in children. Methods Sixty children aged 6-10 years who met the inclusion criteria were divided into four groups. Topical anesthetic agents, 2% lignocaine (Lox-2% Jelly, Neon, Mumbai, India), 4.7% clove gel (Pain Out Dental Gel, Colgate Palmolive India Ltd, Solan, India), 10% betel leaf extract gel, and ice were applied to each group for one min, followed by administration of infiltration anesthesia. Pain perception was analyzed during needle insertion. The Wong Bakers FACES pain rating scale (WBFPRS) was used for subjective assessment and the Sound, Eye, Motor (SEM) scale for objective assessment. Recorded values were tabulated and subjected to appropriate statistical analysis using SPSS software with a P value set at 0.05. Results The clove oil and betel leaf groups demonstrated the highest WBFPRS scores, followed by the ice and lignocaine groups. The clove, betel leaf extract, and ice groups showed equal and highest SEM scores, followed by the lignocaine group. The mean WBFPRS and mean SEM scores were statistically significant. Conclusion Betel leaf extract gel is effective in reducing pain and can act as an alternative topical anesthetic agent.

Introduction: Dexmedetomidine has been frequently used in regional anaesthesia to improve the quality of blocks. Addition of dexmedetomidine to local anaesthetics has been shown to hasten the onset of both sensory and motor blocks and also prolong the duration of analgesia. The objective of this prospective comparative study was to assess the change in characteristics of infraclavicular brachial plexus block after adding Inj. Dexmedetomidine to 2% Lignocaine with Adrenaline. Methods: Sixty-six patients, scheduled for upper limb surgeries under ultrasound guided infraclavicular brachial plexus block were randomly allocated to two groups. Group LS received Inj. Lignocaine 2% with Adrenaline, 7mg/kg diluted to 30 ml with saline and Group LD received Inj. Dexmedetomidine 0.75 mcg/kg in addition to Inj. Lignocaine 2% with Adrenaline, 7mg/kg again diluted to a total volume of 30 ml. The parameters studied were: onset of sensory and motor blocks and duration of analgesia. Results: Sixty patients completed the study. The demographic variables and motor block were similar between both groups. The mean time to onset of sensory block was significantly faster in Group LD compared to Group LS (9.80±4.85 min vs 12.30±3.97 min, p=0.033). The duration of analgesia was also found to be prolonged in Group LD compared to Group LS (286.73±55.38 min vs 226.53±41.19 min, p < 0.001). Conclusion: Addition of 0.75 mcg/kg of Dexmedetomidine to 2% Lignocaine with Adrenaline hastens the onset of sensory block and prolongs the duration of analgesia in ultrasound guided and peripheral nerve stimulator guided infraclavicular block.

In the absence of cardiac pathology, premature ventricular contractions (PVCs) in neurosurgical patients frequently accompany subarachnoid hemorrhage, intracerebral hemorrhage, traumatic brain injury, or raised intracranial pressure. PVCs detected during preanesthesia assessment prompts detailed cardiac evaluation. Our 57-year-old patient, a case of left frontal meningioma, with controlled hypertension, diabetes and hypothyroidism, had normal preoperative ECG and potassium. However, immediately on anesthesia induction, she developed multiple refractory to treatment PVCs but with normal blood pressure. Anesthesia, which was maintained with sevoflurane and fentanyl, was deepened to exclude light anesthesia as the cause, without useful outcome. Two lignocaine boluses (100 mg each), followed by its infusion, also proved ineffective. Her blood gases and potassium, checked twice, were normal. Throughout, her hemodynamics remained stable. As soon as tumor was removed, the PVCs disappeared not to return. Her postoperative recovery was uneventful with normal ECG.

Objective: To compare intravenous lignocaine vs. intravenous nalbuphine in terms of mean change in heart rate and mean arterial pressures (MAP) during awake tracheal extubation. Study Design: Randomized control trial. Place and Duration of Study: Main Operation Theatre, Combined Military Hospital Rawalpindi, from May 2016to Dec 2016. Methodology: After approval of the study by the institution’s research ethics committee, the patients meetinginclusion criteria were assigned randomly to one of the two groups by lottery method. On return of spontaneous ventilation, patients in group L received intravenous lignocaine 1.5 mg/kg while group N patients received intravenous Nalbuphine 0.2mg/kg. Data recorded immediately (T1) and 5min after (T2) extubation. Results: After stratification of data in terms of age, gender, duration of surgery and ASA classification, evaluation of hemodynamic parameters (HR and MAP) between the two groups was done. The mean change in HR in group L was 6.66 ± 1.53 bpm and in group N was 4.43 ± 1.35. The mean change in MAP in group L was 4.90 ± 1.49 mm of Hg and in group N was 3.23 ± 1.33. p-value in both parameters was found to be less than 0.05 and thus declared significant.Conclusion: We concluded that intravenous nalbuphine, in the dose of 0.2mg/kg, is a better attenuator ofhemodynamic response to extubation as compared to intravenous lignocaine and provides better stability ofHeart rate and Mean arterial Pressure.

Background: The use of adjuvants in intravenous regional anesthesia [IVRA] for upper limb surgeries seems to increase efficacy and reduce side effects. Trials are continued to reach the ideal combination. Aim of the work: The study aimed to evaluate the efficacy and safety of IVRA for upper arm surgery using different adjuvants [atracurium and dexmedetomidine]. Patients and methods: 120 patients scheduled for elective upper limb surgeries were included. Patients were divided randomly into four equal groups. Group I received 40 ml lignocaine 0.5% alone, group II: received 40 ml [lignocaine 0.25% plus dexmedetomidine 50 μg], group III received 40 ml [lignocaine 0.25% plus atracurium 2 mg], and group IV received 40 ml [[lignocaine 0.25% plus dexmedetomidine 50 μg and atracurium 2 mg]. surgery duration, quality of anesthesia, postoperative analgesia, and hemodynamics were monitored. Results:The onset of sensory and motor block was significantly shorter in groups II and IV than in group I or III. Also, both sensory and motor block were significantly shorter in group IV when compared to group II [2.53±0.57, 3.60±0.62 vs. 3.33±0.54 and 5.20±0.84 respectively]. Besides, the pain was significantly lower in groups II and IV than groups I or III after deflation at 5, 15, 30, 60 minutes, and up to 8 hours. The need for postoperative analgesia was significantly higher among groups I and III when compared to groups II and IV [56.7%, 63.3% vs. 30.0% and 20.0%, respectively]. No major adverse events were reported. Conclusion: The use of dexmedetomidine as an adjuvant had a significantly better postoperative analgesia, longer duration of sensory and motor block, and earlier onset of action. In addition, the use of atracurium besides dexmedetomidine improves the quality of IVRA.

BACKGROUND Laryngoscopy and intubation of the trachea causes increases in pulse rate and blood pressure. This is due to sympathoadrenal discharge caused by epipharyngeal and parapharyngeal stimulation. Unfortunately, the complete answer to this seemingly simple co-occurrence of laryngoscopy and tracheal intubation remains elusive. We wanted to compare the effects of three drugs namely lignocaine, fentanyl, esmolol for obtunding the haemodynamic response to laryngoscopy and intubation. METHODS A total of 60 adult patients undergoing elective spinal surgical procedures were included in the study. The patients were randomised to receive pre-intubation bolus of fentanyl (2 mcg / Kg), esmolol (0.5 mg / Kg) and lignocaine (1.5 mg / Kg) 3, 2 and 1.5 minutes before intubation, respectively. We measured pulse rate, SBP, DBP, and MAP prior to intubation and then subsequently at 1, 2, 3, 5, and 10 minutes after intubation. Data was analysed with SPSS 19 software. RESULTS The pulse rate, blood pressure and the MAP were found to be effectively controlled in the fentanyl group. The increase in pulse rate in the lignocaine group was found to be highly significant at all points of time as compared to the pre-intubation rate (p < 0.0001). In the fentanyl group, we observed a fall in the pulse rate; however, this fall in pulse rate was not significant (p > 0.05). An increase in the pulse rate was observed in the Esmolol group. When compared to pre-intubation, this rise was found to be significant in the 1st to 5th minute, after which the change in rate in the 10th min was not significant when compared to the pre intubation rate. CONCLUSIONS Fentanyl, in a dose of 2 µgm / Kg I.V., was a safe and effective agent in controlling the increase in heart rate and blood pressure in response to laryngeal stimulation and airway instrumentation.

Background: The aim of the present prospective randomised double-blind clinical study was to compare the incidence of pain-free injection following the use of this new formulation (propofol with medium-chain triglycerides [MCT] and long-chain triglycerides [LCT]) with propofol dissolved in LCT with added 2% lignocaine in patients undergoing various surgical procedures under general anaesthesia. Methods: Sixty adult patients (age range 18–50 years) were randomised to receive either 20 mL propofol dissolved in a mixture of MCT–LCT [Group L (n = 30)] or 18 mL propofol dissolved in LCT with added 2 mL 2% lignocaine [Group S (n = 30)]. A specially trained clinical research investigator assessed the occurrence of injection pain using a four-graded pain scale. Results: There was no significant difference in propofol injection pain among patients who received either LCT propofol with added lidocaine, (Group S) (33.3%) or new formulation propofol (Group L) (30.0%) (P = 0.993). Conclusions: The newer formulation, MCT–LCT propofol, is equally effective vis-a-vis the conventional propofol with added lignocaine to reduce the incidence of pain, thereby eliminating the need for addition of another drug, lignocaine.

Laryngoscopy and tracheal intubation are constantly connected with a reflex sympathetic reaction bringing about tachycardia, hypertension and dysrrhythmias. This may cause harm in high hazard patients. Different pharmacological methodologies have been utilized to limit or weaken such a reaction. This study aimed to assess the hemodynamic changes following laryngoscopy and endotracheal intubation following propofol induction utilizing a standard anesthesia procedure and to analyze the capability of lignocaine and fentanyl in lessening the cardiovascular reaction to laryngoscopy and intubation amid general anesthesia. Sixty patients aged between eighteen to fifty years, of either gender and ASA class I, weighing between forty to ninety kilograms were planned for elective procedures and were haphazardly allotted into three groups of 20 each. Induction of anesthesia was standard for all patients who received propofol 2mg/kg i.v. and were relaxed with succinylcholine 1mg/kg i.v. The first group received 10cc. normal saline, the second group had fentanyl 2µg/kg i.v. bolus and the third group got lignocaine 1.5mg/kg 3 minutes before laryngoscopy and intubation. Heart rate and blood pressure were recorded noninvasively on arrival to the theatre and considered as a base line record, just after induction and then 1,3,5,7 and 10 minutes following intubation. There were no difference in statistical analysis between the groups regarding number, gender, age, weight and ASA class. There is significant rise in heart rate, systolic BP, diastolic BP and MAP in control group particularly in the first 3 minutes following intubation (p0.05). Both fentanyl and lignocaine were equally effective in prevention of major rise in systolic blood pressure, diastolic blood pressure and mean arterial blood pressure. In conclusion, Fentanyl 2µg/kg and lignocaine 1.5mg/kg are both equally effective for attenuation of laryngoscopy and endotracheal intubation pressor response. Keywords: Attenuation, changes in hemodynamics, laryngoscopy, endotracheal intubation, propofol, fentanyl, lignocaine.

Simple Summary Lambs are routinely castrated and/or tail docked. Local anesthesia could improve lamb welfare, but data on the duration of effect of local anesthetics are not available. This study evaluated the efficacy of lidocaine, procaine, or bupivacaine in terms of the behavioral response to castration and/or tail docking. The benefits of local anesthetics were modest. The effects of procaine appear to last longer than lidocaine, while bupivacaine is slower to take effect but may provide longer-lasting pain relief. The duration of action of local anesthetics is limited in sheep, and detailed behavioral evaluations are required in the first hour post-procedure to observe efficacy. Abstract The use of local anesthesia at the time of ring castration and tail docking can improve lamb welfare. However, few local anesthetics are registered for sheep, and data on their duration of effect is limited. Three studies were conducted to evaluate the efficacy of procaine (P), lidocaine (L), and bupivacaine (B) in terms of observed alleviation of behavioral responses to castration and/or tail docking in 10-min blocks in the first 60 min post-treatment. In each study, comparisons were made between two groups of lambs castrated and/or tail docked with rubber rings and either receiving the agent using the NUMNUTS® instrument (N) or receiving no anesthetic agent (RR). Acute pain behavior was lower in NL (n = 28) than RRL (n = 15) males in the first 10 min post-procedure (p < 0.05); lower in NB (n = 16) than RRB (n = 16) males in periods 10–20 min (0.05 < p < 0.01), 20–30 min (p < 0.05) and 40–50 min (0.05 < p < 0.01); lower in NB (n = 16) than RRB (n = 16) females between 20 and 40 min post-procedure (0.05 < p < 0.01); lower in NP (n = 8) than RRP (n = 7) males in period 10–20 min (0.05 < p < 0.01), and lower in NP (n = 9) than RRP (n = 9) females in periods 0–10 min (0.05 < p < 0.01), and 10–40 min (p < 0.05). Benefits were modest, and the effects of procaine appear to last longer than lidocaine, while bupivacaine is slower to take effect than either procaine or lidocaine but may provide longer-lasting pain relief. The duration of action of local anesthetics is short in sheep, and detailed behavioral evaluations are required in the first hour post-procedure to establish efficacy.

Introduction Pain-free operating is of obvious benefit to the patient, it also helps the operator as treatment can be performed in a calm, unhurried fashion. Articaine hydrochloride has steadily grown in popularity, and studies have shown that articaine hydrochloride performs better than lidocaine due to an enhanced anesthetic efficacy. Aim and objective To assess the efficacy of buccal infiltration with articaine in achieving anesthesia for pulp therapy in primary mandibular second molars as compared with inferior alveolar nerve block (IANB) with lignocaine. Materials and methods Thirty patients (4-8 years) with an indication of pulp therapy in at least two primary mandibular second molars were selected. Patients were randomly assigned to receive nerve block with lignocaine on the first appointment and buccal infiltration with articaine on the second appointment spaced 1 week apart. A single researcher injected local anesthetic for all the patients. Two researchers standing at a distance of 1.5 m recorded the pain scores and sound, eye, motor (SEM) scores. After the completion of the procedure, the patient was asked to record facial image (FI) score and Heft-Parker visual analog score (HP-VAS). Results The pain-related behavior scores were higher for IANB when compared with infiltration. Facial image and HP-VAS scores were higher for the lignocaine IANB group when compared with the articaine infiltration. Conclusion With the increasing use of new delivery systems such as single tooth analgesia, a buccal infiltration with articaine provides an effective alternative, with minimal discomfort which would allow clinicians to avoid the use of IANB in children. How to cite this article Daneswari V, Venugopal Reddy N, Madhavi G, et al. Assessing the Pain Reaction of Children and Evaluation of Efficacy of Buccal Infiltration with Articaine and Inferior Alveolar Nerve Block with Lignocaine for Pulp Therapy in Primary Mandibular Second Molars. Int J Clin Pediatr Dent 2021;14(3):335-339.

Aim To compare the efficacy of lignocaine and benzocaine when applied as a topical anesthetic before intraoral local anesthetic administration in children. Materials and methods Forty-four patients aged between 4 years and 10 years indicated for pulp therapy of primary teeth under inferior alveolar nerve block were selected for this study. The participants were randomly allocated into two groups of 22 each. Group I (lignocaine gel) and group II (benzocaine gel) were applied before inferior alveolar nerve block. The pain scale was assessed by a trained examiner using the visual analog scale (VAS) and sound eye motor scale. Results Lignocaine when used as a topical anesthetic agent showed lower mean scores under both the pain scales when compared with benzocaine but the results were statistically insignificant. Conclusion Lignocaine and benzocaine are equally effective when applied as a topical anesthetic agent. But lignocaine was more preferred in taste when compared with benzocaine. How to cite this article Kotian N, Mani G, Ramakrishnan M. Comparative Evaluation of Two Different Topical Anesthetic Agents in Controlling Pain during Intraoral Local Anesthetic Administration in Children: A Split-mouth Triple-blinded Randomized Clinical Trial. Int J Clin Pediatr Dent 2021;14(2):180-182.

PICO question In adult cats undergoing a venepuncture procedure, does the application of a topical lidocaine based anaesthetic to the skin at the venepuncture site reduce the severity of signs associated with pain when compared to no topical anaesthetic? Clinical bottom line Category of research question Treatment The number and type of study designs reviewed Four papers were critically reviewed. Three were prospective, double-blind, randomised, controlled clinical trials, and one was a prospective, double-blind, controlled experimental trial Strength of evidence Moderate Outcomes reported The application of Eutectic Mixture of Local Anaesthetics (EMLA™) cream to clipped skin over the procedure site, a minimum of 30 minutes prior to the venepuncture procedure, significantly reduced the severity of pain-associated behaviours during jugular phlebotomy in healthy, conscious feline patients when compared to a placebo1,2. In felines sedated with dexmedetomidine and either methadone or nalbuphine, the administration of EMLA™ cream to clipped skin for 20 minutes significantly decreased the severity of pain responses during intravenous (IV) cephalic vein catheterisation when compared to no treatment3. In clinically unwell feline patients, the use of EMLA™ cream on clipped skin at the site of jugular catheterisation 60 minutes prior demonstrated reduced pain responses compared to a placebo, but further investigation with a larger sample size is required to verify statistical significance4 Conclusion The available evidence moderately supports the hypothesis that EMLA™ cream is an effective and noninvasive treatment for providing enhanced pain-relief during jugular and cephalic vein phlebotomy for the purposes of blood collection and catheterisation, respectively. The areas for treatment should be clipped free of hair, and the cream applied for a minimum of 30 minutes in non-sedated cats and 20 minutes in cats sedated with dexmedetomidine and either methadone or nalbuphine. Moreover, when applied to normal, intact skin and covered by an occlusive bandage to avoid ingestion, it is well supported by supplementary evidence that EMLA™ cream has a wide safety margin for topical use in cats4,5 How to apply this evidence in practice The application of evidence into practice should take into account multiple factors, not limited to: individual clinical expertise, patient’s circumstances and owners’ values, country, location or clinic where you work, the individual case in front of you, the availability of therapies and resources. Knowledge Summaries are a resource to help reinforce or inform decision making. They do not override the responsibility or judgement of the practitioner to do what is best for the animal in their care.

Background The Wide-Awake-Local-Anaesthesia-No-Tourniquet (WALANT) technique achieves an almost bloodless field for clear visualization during surgeries. WALANT utilizes lidocaine and epinephrine for anesthesia and hemostasis, respectively, without the usage of sedation and tourniquet. This avoids the potential side effects of tourniquet-related pain and sedation-related complications. However, acceptance is still low due to concerns regarding the safety of epinephrine injection in the finger. There is a persistent belief that epinephrine can cause digital ischemia. Purpose To evaluate retrospectively possible complications of hand surgeries performed using the WALANT technique. Methods All finger and hand procedures performed under the WALANT technique from June 2016 to May 2021 in an urban tertiary hospital were studied retrospectively. Results There were a total of 1073 cases, of which 694 were females and 379 were males. The mean age was 55 years. Finger surgeries (e.g., trigger finger release, excision of finger lesions, removal of implants) consisted of 707 cases; and the rest (366 cases) were hand surgeries (e.g., carpal tunnel release, excision of hand lesions, removal of implants). In all cases reviewed, there were no instances of circulatory compromise. There were also no circumstances where usage of reversal with phentolamine is recorded. Conclusion We believe that performing finger and hand surgeries using the WALANT technique is safe and beneficial. The usage of WALANT in hand surgeries avoids tourniquet pain. However, WALANT should be used with caution in those with vascular insufficiency or disease.

Background: Dexmedetomidine attenuates the hemodynamic stress response tolaryngoscopy and intubation more effectively compared with Lignocaine without any deleterious effects. To study the efficacy of Lignocaine 1.5 mg/kg & Dexmedetomidine 1 μg/kg in attenuating the hemodynamic pressure response to laryngoscopy & intubation. Material and Methods: A total of 100 American Society of Anesthesiologists (ASA) physical status I and II patients aged between 18 and 50 years undergoing elective surgery were enrolled in the study. Patients posted for elective surgery were randomly selected and divided into two groups. Group L = 50 Patients had given 1.5mg/kg Lignocaine; Group D = 50 Patients had given 1µg / kg Dexmedetomidin. Results: In Dexmedetomidine group, HR, SBP, DBP and MAP showed significant decrease throughout the study period, as compared to Lignocaine group. The statistical analysis shows that, in Dexmedetomidine group, HR, SBP, DBP and MAP showed significant decrease throughout the study period, as compared to Lignocaine group. Conclusion: Newer agents like Dexmedetomidine, a centrally acting alpha-2 agonist suppresses reflex sympathetic stimulation caused by laryngoscopy & intubation more effectively than Lignocaine. Thus, it is concluded that Dexmeditoedine is a better drug compared to Lignocaine in attenuating pressure response to laryngoscopy & intubation.

BACKGROUND Propofol is an ideal intravenous anaesthetic agent which provides smooth induction and recovery, but its adverse effect is considerable pain on injection of unknown cause. Various drugs like lignocaine, tramadol, ketorolac, opioids, metoclopramide can be co-administered to alleviate pain. The purpose of this study is to compare the analgesic effect of lignocaine and tramadol in ameliorating propofol injection pain. MATERIALS AND METHODS In this prospective placebo controlled double blinded study, one hundred and fifty patients under general anaesthesia with propofol as inducing agent of ASA grade 1 and grade 2, were randomly allocated into three groups (A, B, C). In all cases, the drugs were administered slowly one minute prior to the injection of propofol and pain scores were measured immediately. Verbal responses for pain were also recorded. RESULTS Results were analysed by Z-test. p value 0.05). However, both the drugs effectively reduced the incidence of pain on propofol injection when compared to placebo group. (p value 1.96). CONCLUSION There is no statistically significant difference between lignocaine and tramadol with regard to their efficacy in reducing propofol injection pain. Both the drugs (Lignocaine 60 mg and Tramadol 50 mg), can be given one minute prior to the propofol injection and they could prevent the pain of propofol injection in patients undergoing general anaesthesia, as compared to the placebo group.

Context: Laryngoscopy and endotracheal intubation result in an increase in heart rate and blood pressure; they evoke life-threatening complications. The esmolol is short-acting cardioselective beta-blocker and brings advantages to the perioperative management of tachycardia and hypertension. Aims: The aim of this study was to compare the efficacy of a bolus dose of esmolol and bolus dose of lignocaine for attenuation of the pressor response to laryngoscopy and intubation. Settings and Design: Sixty patients of both sex, aged 20–50 years, belonging to the American Society of Anesthesiologists physical Status I and II randomly allocated into two groups (n = 30). Materials and Methods: The study drugs diluted in 10-ml normal saline. Group I received esmolol 1.5 mg/kg and Group II received lignocaine 1.5 mg/kg 2 min before inducing the patients with thiopentone 5 mg/kg and suxamethonium 1.5 mg/kg. The heart rate, systolic blood pressure, and diastolic blood pressure were measured at basal, during intubation, and 1, 2, 3, and 5 min after intubation, and based on these values, the mean arterial pressure (MAP) and rate pressure product (RPP) was calculated. Statistical Analysis Used: The Student's t-test and data were represented by mean standard deviation and graphs. Results: The mean pulse rate, mean of MAP, and mean of RPP at intubation and at 1, 2, 3, and 5 min after intubation in lignocaine group showed a significant rise in these values but in esmolol group it remained nearer to or less than baseline values. Conclusions: Esmolol 1.5 mg/kg is effective in attenuating the pressor response in comparison with lignocaine 1.5 mg/kg during laryngoscopy and intubation.

Background Lignocaine with adrenaline is routinely used as a local anesthetic for dental procedures. Adrenaline was added to increase the duration of anesthesia. However, epinephrine containing a local anesthetic solution is not recommended in conditions such as advanced cardiovascular diseases and hyperthyroidism. Recently, ropivacaine has gained popularity as a long-acting anesthetic with superior outcomes. The goal of this study was to assess and compare the effectiveness of 0.75% ropivacaine alone and 2% lignocaine with adrenaline (1:80,000) in the removal of bilateral maxillary wisdom teeth using the posterior superior alveolar nerve block technique. Methods This was a single-blind, randomized, split-mouth, prospective study assessing 15 systemically sound outpatients who needed bilateral removal of maxillary third molars. We randomly allocated the sides and sequences of ropivacaine and lignocaine with adrenaline administration. We evaluated the efficacy of both anesthetics with regard to the onset of anesthesia, intensity of pain, variation in heart rate, and blood pressure. Results The onset of anesthesia was faster with lignocaine (138 s) than with ropivacaine (168 s), with insignificant differences (p = 0.001). There was no need for additional local anesthetics in the ropivacaine group, while in the lignocaine with adrenaline group, 2 (13.3%) patients required additional anesthesia. Adequate intraoperative anesthesia was provided by ropivacaine and lignocaine solutions. No significant difference was observed in the perioperative variation in blood pressure and heart rate. Conclusion Ropivacaine (0.75%) is a safe and an adrenaline-free local anesthetic option for posterior superior alveolar nerve block, which provides adequate intraoperative anesthesia and a stable hemodynamic profile for the removal of the maxillary third molar.

Objectives This randomized clinical trial aimed to assess the effectiveness of buccal infiltration with piroxicam on the anesthetic efficacy of inferior alveolar nerve block (IANB) with buccal infiltration in irreversible pulpitis, with pain assessed using the Heft-Parker visual analogue scale (HP-VAS). Materials and Methods This study included 56 patients with irreversible pulpitis in mandibular molars, randomly distributed between 2 groups (n = 28). After evaluating the initial pain score with the HP-VAS, each patient received IANB followed by buccal infiltration of 2% lignocaine with adrenaline (1:80,000). Five minutes later, the patients in groups 1 and 2 were given buccal infiltration with 40 mg/2 mL of piroxicam or normal saline, respectively. An access opening procedure (AOP) was performed 15 minutes post-IANB once the individual showed signs of lip numbness as well as 2 negative responses to electric pulp testing. The HP-VAS was used to grade the patient's pain during caries removal (CR), AOP, and working length measurement (WLM). Successful anesthesia was identified either by the absence of pain or slight pain through CR, AOP, and WLM, with no requirement of a further anesthetic dose. A statistical analysis was done using the Shapiro-Wilk and Mann-Whitney U tests. Results The piroxicam group presented a significantly lower (p < 0.05) mean pain score than the saline group during AOP. Conclusions Buccal infiltration with piroxicam enhanced the efficacy of anesthesia with IANB and buccal infiltration with lignocaine in patients with irreversible pulpitis.

Background Dexmedetomidine is being used as an adjuvant analgesic, both as intravenous (IV) and intrathecal infusion. The role of perineural (P) dexmedetomidine has evoked attention recently. The aim of this study was to compare the effect of IV dexmedetomidine and P dexmedetomidine as an adjunct to supraclavicular brachial plexus block in upper limb orthopaedic surgery. Methods Patients were randomly divided into two equal groups (n=20). Group I (IV dexmedetomidine) received dexmedetomidine 1 mcg/kg IV as loading dose over 10 minutes, followed by continuous infusion of dexmedetomidine 0.4 mcg/kg/hr IV. Group P (P dexmedetomidine) received dexmedetomidine at 1 mcg/kg perineurally. After adequate motor response with the aid of peripheral nerve stimulator a supraclavicular block with 40 ml solution containing 5 mg/kg lignocaine (2%) with adrenaline (1:200,000) and 2 mg/kg of bupivacaine (0.5%) was injected to both the groups. Group P also received dexmedetomidine perineurally with block. Onset and duration of sensory and motor block, Ramsay sedation score, hemodynamic parameters, and postoperative analgesia requirement were assessed along with side effects. The data obtained were recorded as mean ± SD, ranges, numbers, and ratios. Results were analyzed using the chi-square test, the Mann-Whitney test for non-parametric data, and an unpaired ‘t’-test for parametric data. Statistical analysis was carried out using the SPSS (version 10, 2002; SPSS Inc., Chicago, IL, USA) for Windows statistical package. P value less than 0.05 was considered statistically significant. Results Mean onset of sensory block was earlier in group I than in group P (p0.05). Duration of sensory and motor blockade was longer in group I (p4) was higher in group I (p>0.05). Conclusion IV dexmedetomidine produced early onset of sensory block, longer duration of sensory and motor block, and longer duration of analgesia as compared with P dexmedetomidine as an adjuvant to supraclavicular block with 5 mg/kg lignocaine (2%) and 2 mg/kg bupivacaine (0.5%) in upper limb orthopaedic surgeries.

Objectives To ascertain if topical lignocaine application in oropharynx prior to swab sampling to test for COVID-19 improves a patient’s comfort and to assess its effect on the swab sample taken to conduct the RT-PCR. Methods Adult patients testing positive on the RT-PCR COVID-19 test were sampled again within 48 h after administering topical oropharyngeal anaesthesia. Patients were asked to rate their discomfort on a visual analog scale (VAS) for both sample A and B. A qualitative real-time RT-PCR for detection of SARS-CoV-2 RNA, was performed, and the cycle threshold value (Ct), used as a surrogate marker for the viral load, was measured for the sample taken without lignocaine (sample A) and the sample taken post-lignocaine application (sample B). The difference in Ct values of both the groups was checked for any statistical significance using paired t-test. Wilcoxon signed rank test was used on VAS scores to determine any significant decrease in discomfort. Results Forty patients were included in the study. Twenty-nine patients (72.5%) reported the procedure to be more comfortable post-lignocaine application. Median (IQR) discomfort on VAS decreased from 7 (1) to 5 (2) after lignocaine use, which was statistically significant (p 0.05), indicating a non-significant effect of lignocaine on SARS-CoV-2 concentration in the sample. Conclusion Topical lignocaine, while improving the comfort of the procedure of oropharyngeal sampling for patient did not alter the SARS-CoV-2 viral load that was detected in nasal and oropharyngeal samples taken together.

Background This research evaluated the numbness produced by lignocaine at an equal or higher concentration than that of 4% articaine through a single point of injection for maxillary third molar surgery. This randomized double-blind study was conducted to compare the anesthetic efficiency of 4% lignocaine with that of 4% articaine in impacted maxillary third molar surgery using a single buccal infiltration alone. Methods The study participants were 30 healthy patients requiring the bilateral surgical removal of symmetrically-positioned maxillary third molars. Using a split-mouth design, each patient randomly received buccal infiltration of 1.7 ml of 4% lignocaine and 1.7 ml of 4% articaine during two separate appointments. After 15 minutes of anesthetic injection, surgery was performed by the same surgeon using a consistent technique on both sides. Pinprick test pain scores of the buccal and palatal gingiva of the maxillary third molar after 10 minutes and 15 minutes latencies, pain scores during the surgery, the need for supplemental anesthesia, and patients' satisfaction with anesthetic efficiency were recorded. Surgery performed without supplemental anesthesia was categorized as successful. Results The success rates of 4% lignocaine and 4% articaine (83.34% vs. 86.67%, P = 1.00) were not significantly different. Only 5 cases (4 cases in the articaine group and 1 case in the lignocaine group) reported mild pain and pressure sensation (NRS ≤ 1) on probing at the palatal side after 15 minutes of latency (P = 0.25). The pain scores of maxillary third molar surgery in the two groups were not significantly different (P > 0.05). Moreover, the statistical analysis confirmed the comparable patient satisfaction of two study groups (P = 0.284). Conclusion This study provides evidence that single buccal infiltrations of 4% lignocaine and 4% articaine have comparable anesthetic efficacy and success rates for impacted maxillary third molar surgery. Both 4% lignocaine and 4% articaine can produce effective palatal anesthesia and pain control using buccal infiltration alone after 15 minutes of latency.

Objective: Lignocaine is the most widely used local anesthetic agent in dentistry. It has been labeled as the “gold standard” to which all new local anesthetics are compared. Aim: The aim of this prospective, randomized study was to compare the anesthetic effi cacy of 4% articaine HCl with 1:100,000 adrenaline in comparison with 2% lignocaine HCl with 1:80,000 adrenaline in extraction of maxillary premolars for orthodontic considerations. Materials and Methods: A total of fi fty patients were included in this study. Drug volume, onset and duration of anesthesia, pain during injection and extraction, and postanesthetic complications were recorded for all patients. The values were compared and analyzed statistically using paired t-test. Results: In the present study, drug volume solution for articaine group was less than that of lignocaine group. The mean difference in pain rating (for palatal injection), onset, and also duration of anesthesia for articaine was highly signifi cant statistically on palatal aspect (P < 0.001). Conclusion: The present investigation asserts that articaine HCl has shorter onset time, longer duration of action, and similar effi cacy to lignocaine HCl and thus can also be used. Further controlled comparative clinical trials with similar local anesthetic agents in oral cavity with multicenter studies and a larger sample size are desirable to bring valuable attention to this research area and evaluate the safety and clinical efficacy of articaine HCl.

Background Pneumoperitoneum during laparoscopic surgery is associated with significant hemodynamic changes represented by increasing heart rate, vascular resistance, and blood pressure. This study aimed to compare the safety of each of magnesium sulfate, dexmedetomidine, and lignocaine on hemodynamic responses during pneumoperitoneum. Patients and methods In all, 120 patients were enrolled in the study. They were electively planned for laparoscopic cholecystectomy. Their ages were in the range of 21–60 years. Men were 38.3% and women 61.67%. American Society of Anesthesiologists I: 74.17% and II: 25.83%. The patients were randomly allocated into four groups: each of 30 patients. Group M administered magnesium sulfate preoperatively as loading followed by infusion 50 mg/kg/h, group D received dexmedetomidine preoperatively as loading followed by infusion 0.5 µg/kg/h, group L was given lignocaine preoperatively as loading followed by infusion 1 mg/kg/h, and group C received normal saline. Results A significant difference was noticed as regards heart rate changes and mean arterial blood pressure increase between the groups of magnesium sulfate, dexmedetomidine, lignocaine, and the control group at the time of drug administration, after intubation, throughout pneumoperitoneum at 5 min intervals, postpneumoperitoneum, and in the postoperative period after 10 min (P

Background: The aim of this randomized split-mouth double-blind study was to evaluate whether 4% articaine hydrochloride with 1:100,000 epinephrine administered as a single buccal infiltration in the maxillary posterior sextant can provide palatal anesthesia when compared with 2% lignocaine with 1:100,000 epinephrine during scaling and root planing and access flap surgery (AFS). Material and Methods: A total of 40 patients with chronic generalized periodontitis requiring periodontal therapy in the maxillary posterior sextants were recruited in this study. About 4% articaine and 2% lignocaine were administered as buccal infiltration in a split-mouth design randomly. The pain scores in the palatal aspect were recorded during scaling and root planing and open flap debridement using Heft-Parker visual analog scale. The onset of anesthesia was also recorded and compared. Results: The success rate for maxillary buccal infiltration to induce palatal anesthesia using articaine was 90% during scaling and root planing and 82.5% during AFS and for lignocaine solution was 20% and 15%, respectively. The difference between the two agents was statistically significant (P < 0.05). The onset of anesthesia between articaine and lignocaine was also found to be statistically significant (P < 0.05). Conclusion: In this study, we observed that the efficacy of 4% articaine was superior to 2% lignocaine to induce palatal anesthesia following maxillary buccal infiltration in maxillary posterior sextants.

BACKGROUND The aim of this study was to evaluate the effects of dexamethasone and magnesium sulfate as additives to local anaesthetic solution containing lignocaine and bupivacaine in supraclavicular brachial plexus block. MATERIALS AND METHODS A prospective randomised double blind control study was conducted on 90 healthy patients of ASA grade I, II of age group 18-50 years scheduled for upper limb surgeries under supraclavicular block. Patients were allocated to three groups of 30 each as a control group (S) received only local anaesthetic, group getting dexamethasone as additive (SD) and group getting magnesium sulfate as additive to local anaesthetics (SM).Parameters observed were time of onset of sensory and motor block, duration of analgesia and side effects. RESULTS Onset of sensory block was most rapid in Group SD and was statistically significant when compared to Group S (p

Background Lignocaine is a local anaesthetic agent, which is also commonly used as a perioperative analgesic adjunct to accelerate rehabilitation and enhance recovery after surgery. Lignocaine’s systemic effects on intraoperative haemodynamics and volatile anaesthetic requirements are not well explored. Therefore, we evaluated the effects of intravenous lignocaine on intraoperative volatile agent requirements and haemodynamics in patients undergoing major abdominal surgery. Methods We performed an analysis of 76 participants who underwent elective open radical retropubic prostatectomy. Patients received lignocaine (1.5 mg/kg loading dose) followed by an infusion (1.5 mg/kg/h) for the duration of surgery, or saline at an equivalent rate. The aims of the study were to evaluate the end-tidal sevoflurane concentration required to maintain a bispectral index of between 40 and 60. Measurements included intraoperative blood pressure, heart rate, and the volume of intravenous fluids and dosage of vasoactive medications administered. Results The average end-tidal sevoflurane concentration was lower in the Lignocaine group compared to saline [1.49% (SD: 0.32) vs. 1.89% (SD: 0.29); 95% CI 0.26–0.5, p

Background: Lateral elbow pain is common with a population prevalence of 1%–3%. The study was a comparative trial to validate the efficacy of single injection of platelet-rich plasma (PRP) for tennis elbow as compared with single injections of triamcinolone and placebo (normal saline) over a short term period. Materials and Methods: Comparative trial with 3- and 6-month followup evaluated with visual analog scale (VAS) and facial pain scale (FPS). Our study included a total of eighty patients with unilateral or bilateral tennis elbows. The study population included patients between 20 and 40 years age group belonging to either sex with seventy unilateral and ten bilateral affections for more than 3-month duration. Patients suffering from elbow pain due to other problems or those who have received any form of injection were excluded from the study. One milliliter of 2% Xylocaine injection was given before injecting the proposed formulation under trial. VAS and FPS were used for scoring pain. Kruskal–Wallis test and Mann–Whitney U-tests were used for statistical analyses at 12 and 24 weeks. Results: Overall, 49 females and 31 males were included with thirty elbows in each group. Both the PRP and triamcinolone groups had better pain relief at 3 and 6 months as compared to normal saline group (P < 0.05), but at 6 months followup, the PRP group had statistically significant better pain relief than triamcinolone group. In the triamcinolone group, 13 patients had injection site hypopigmentation and 3 patients had subdermal atrophy. Conclusion: Over a short term period, PRP gives better pain relief than triamcinolone or normal saline in tennis elbow which needs to be validated over long term period by further studies.

BACKGROUND Intravenous regional anaesthesia (IVRA, Bier’s block). is a simple regional anaesthesia technique in which analgesia and muscle relaxation are produced by the injection of an adequate volume of local anaesthetic solution or a mixture of solution containing local anaesthetic and additive drugs like muscle relaxants, opioids, NSAIDS or an intravenous anaesthetic into a vein of an extremity(to be operated on) with inflow and outflow of blood prevented by a proximally applied tourniquet. Intravenous regional anaesthesia is an effective and simple method of producing extremity block. The technique was introduced by August Bier in 1908 and is known as Bier’s block. MATERIALS AND METHODS Sixty patients were randomly allocated into two groups of thirty each and they were not aware as to which group they belonged to. The first group received intravenous regional anaesthesia or Bier’s block with 40 ml of 0.5% preservative free lignocaine and 50 mg of tramadol and second group with 40 ml of 0.5% preservative free lignocaine and 30 mg of Ketorolac. The onset of analgesia and muscle relaxation, quality of anaesthesia and haemodynamic effects were noted. Patients were closely observed for any untoward effects of local anaesthetic toxicity. RESULTS The addition of tramadol 50 mg to 40 ml of 0.5% preservative free lignocaine produced excellent block with reduced time of onset, prolonged analgesia after tourniquet release and the quality and efficacy of analgesia was also better compared to the other group where ketorolac is used instead of tramadol. CONCLUSION The study concludes that IVRA with 40 ml of 0.5% lignocaine and 50 mg tramadol offers a simple, inexpensive and safe means of anaesthesia with prolonged post-operative analgesia.

BACKGROUND Anaesthesia for cataract surgery has developed much in the recent times. Regional anaesthesia with peribulbar block is a technique of choice for most patients undergoing cataract surgery. Ropivacaine, a new aminoamide local anaesthetic agent with greater margin of safety is now being used. The aim of this study is to compare the quality of motor block between ropivacaine and bupivacaine both combined with lignocaine in peribulbar anaesthesia by a single medial injection 1,2 for cataract surgery. MATERIALS AND METHODS 200 patients of ASA I, II, III classes scheduled for elective cataract surgery was studying. Those who received peribulbar injection of bupivacaine 0.5% and lignocaine 2% were taken as group A and those who received ropivacaine 0.5% and lignocaine 2% were taken as group B (maximum 7-10 mL). RESULTS Result of the study showed that the quality of motor block as assessed by the ocular movement score and eye lid movement score was better in the ropivacaine group compared to bupivacaine group. CONCLUSION Ropivacaine a new aminoamide drug possessed properties similar to bupivacaine but provides better quality of motor block when combined with lignocaine.

BACKGROUND Endotracheal extubation is one of the frequently performed procedures in the practice of anaesthesia. This study was done to observe the haemodynamic responses during tracheal extubation and to compare the efficacy of Inj. Diltiazem 0.2mg/kg IV vs Inj. Lidocaine 1mg/kg IV in attenuating the haemodynamic responses to tracheal extubation. MATERIALS AND METHODS A double-blind randomised controlled study was conducted on 90 patients aged 20 to 60 years belonging to American society of anaesthesiologists( ASA ) grade I and II patients and were randomly allocated into 3 groups of n=30 each. Group I received normal saline and served as control. Group II received Inj. Diltiazem 0.2mg/kg IV 2mins. before extubation. Group III received Inj. Lidocaine 1mg/kg IV 2mins.before extubation. At the end of the surgery, HR, SBP and DBP were recorded and served as baseline values. HR, SBP and DBP were recorded after giving reversal at 1min. and 2mins. at the time of administration of study drug,1min. after administration of study drug at the time of extubation, after extubation at 1 min.,2 mins., 3 mins., 4 mins., 5 mins. and 20 mins. RESULTS After tracheal extubation, all the haemodynamic parameters increase from the basal level in the control group and decreased in the study group. The change in HR, SBP and DBP were significantly less in group II and group III compared to group I. The change in HR, SBP and DBP were significantly less in group II compared to group III. CONCLUSION Diltiazem hydrochloride, a calcium channel blocker belonging to the benzothiazepine group given in dose of 0.2mg/kg IV, 2mins before tracheal extubation in ASA grade I and grade II patients is a simple, effective and practical method of blunting cardiovascular responses to tracheal extubation. This suppressive effect of diltiazem was comparable to or even more potent than that of lignocaine 1mg/kg IV, 2mins before tracheal extubation.

Background: The available literature confirms the effectiveness of intraligamentary injections equal to nerve blocks and articaine equal to lignocaine with better depth of penetration for single tooth pulpectomy procedures with less postoperative soft tissue trauma. An advancement in the field of local anesthesia delivery is the Single Tooth Anesthesia-Wand (STA-Wand) which is relatively pain-free and offers comfort to the child. Aims: This study aims to evaluate and compare the anesthetic effectiveness and postoperative complications of 4% articaine and 2% lignocaine intraligamentary injection administered as single tooth anesthesia using a computer-controlled local anesthetic delivery system, the STA-Wand. Settings and Design: Using a randomized, split-mouth, cross-over study design, twenty children aged 4–10 years who required bilateral mandibular pulpectomies were administered intraligamentary injections with 4% articaine and 2% lidocaine in two appointments using STA-Wand. Pain, anxiety, and cooperation levels were scored by an operator and an observer at four phases of treatment using Wong-Baker Faces Pain Rating Scale and Two-6 point Co-operation Anxiety Rating Scale. Results were tabulated and analyzed. Statistical Analysis: Mann–Whitney U-test, paired t -test, and Student's t -test. Results: Both the local anesthetic agents were equally effective with no significant difference ( P > 0.05) throughout rest of the treatment procedure compared to injection phase in minimizing pain, anxiety, and gaining the cooperation levels of children whereas during injection phase, 4% articaine showed superior effectiveness in minimizing pain compared to 2% lignocaine ( P = 0.054). Conclusion: Both the local anesthetic agents delivered using STA-Wand is clinically acceptable, effective, and safe for usage in children.

Background and Aims: Intravenous regional anesthesia (IVRA) is a very good technique to be used in unstable patients. Various adjuvants have been added, but till date, there is no ideal adjuvant. Clonidine is one of the most widely used adjuvants in IVRA. However, it has many side effects. Hence, the search continues for a better adjuvant. The aim of the present study was to compare the efficacy of clonidine versus MgSO4 as an adjunct to lignocaine in IVRA for postoperative analgesia and to compare their side effect profile. Material and Methods: This prospective double-blind randomized controlled study was conducted in a tertiary care institute. Forty adult patients were included. Patients were assigned into two groups; Group 1 (n = 20) received 3 mg/kg of 2% lignocaine + 50% MgSO4 1.5 g diluted with normal saline to 40 ml. Group 2 (n = 20) received 3 mg/kg of 2% lignocaine + clonidine 150 μg diluted with normal saline to 40 ml. Pain score, time to first rescue analgesic (TTFA), total number of rescue analgesics required, and the side effects of the two drugs were compared for 24 h postoperatively. Results: The mean TTFA was significantly longer in Group 1 (193.9 ± 38.4 min) than in Group 2 (169.5 ± 33.3 min); P < 0.05. The mean number of rescue analgesics required was 1.6 ± 0.7 in Group 1 as compared to 2.1 ± 0.8 in Group 2 (P < 0.05). More serious side effects such as hypotension and bradycardia were noted with clonidine, although all patients experienced transient pain during intravenous injection of MgSO4. Conclusion: MgSO4 provides better postoperative analgesia as compared to clonidine when used as an adjunct to lignocaine in IVRA with fewer side effects.

Background: Intravenous regional anesthesia (IVRA) is safe, technically simple, and cost-effective technique compared to general anesthesia with success rates of 94–98% for upper and lower limb surgeries. The main disadvantage of this procedure is its limited duration for surgery, lack of postoperative analgesia, and tourniquet pain. To overcome this disadvantage, various adjuvants to lignocaine have been studied from time to time. Aim: To compare the analgesic efficacy of dexmedetomidine and midazolam as adjuncts to lignocaine for IVRA for forearm and hand surgeries. Setting and Design: The study was conducted by the Department of Anaesthesia of Medical College and patients posted for elective as well as the emergency forearm and hand surgeries were included in the study. It was a prospective comparative study. Materials and Methods: Sixty patients of either sex belonging to the American Society of Anesthesiologists Class I and II, in the age range of 18–65 years, scheduled for upper limb orthopedic surgery, either elective or emergency, were included in the study. All patients were administered IVRA in this prospective, double-blind, randomized study. Patients enrolled in the study were randomly divided into two groups of thirty each. Group M-received 40 ml of 0.5% lignocaine with midazolam 50 μg/kg and Group D-received 40 ml of 0.5% lignocaine with dexmedetomidine 1 μg/kg. Time of onset of sensory block, duration of analgesia, total dose of fentanyl given, intraoperative blood pressure, oxygen saturation, heart rate, postoperative analgesia, and adverse effects were recorded and compared between the groups. Statistical Analysis Used: The statistical evaluation was performed using SPSS version 17.0 software. All values were calculated with a 95% confidence interval. The parameters were expressed as mean ± standard deviation and t-test was used for comparing demographic and clinical data. For comparisons, P < 0.05 was considered statistically significant. Results: Mean duration of analgesia was 93 ± 28 min in dexmedetomidine group and 84 ± 28 min in midazolam group, and onset of sensory block was comparable in both groups. Conclusion: Dexmedetomidine and midazolam, when used as adjuvants to lignocaine for IVRA, significantly improve the intraoperative conditions by providing superior quality of block. The superiority of one over the other could not be established as midazolam produced the early onset of block and less requirement of fentanyl, whereas dexmedetomidine when added to IVRA provided longer duration of analgesia (93 ± 28 min) in comparison to midazolam (84 ± 28 min).

Background: Tennis elbow or lateral epicondylitis is a chronic, painful condition and is often resistant to conventional therapy. We evaluated the benefits of a combined steroid and lignocaine injection in resistant cases of tennis elbow. Materials and Methods: In this prospective, interventional study, we included chronic lateral epicondylitis patients resistant to analgesics and physiotherapy. The pain was assessed by visual analog scale (VAS), and we included patients with a baseline VAS >4. All patients were given local infiltration at the painful site with methylprednisolone (1 ml) and lignocaine (1 ml) by the peppering technique. The primary outcome was the change in VAS from the baseline at the end of 7 and 28 days. The improvement is classified as good, moderate, or mild based on the reduction in VAS score by 3, 2, 1, respectively. Descriptive statistics and appropriate tests were used to analyze the results. Results: The study population (n = 63; male: female - 33:30) had a mean age of 36.2 ± 4.5 years and disease duration of 17.4 ± 5.8 weeks. After 1 week, 55 patients showed good improvement, three patients showed moderate improvement, two patients showed mild improvement, and three patients had no improvement. The improvement persisted till 28 days in all the patients and one patient who had not improved after 7 days did not report for 28 days follow-up. Conclusion: Local infiltration with steroids and lignocaine is a useful modality of therapy for tennis elbow, especially in patients where ultrasonic therapy and conservative measures have failed.

Background: Despite the advent of modern injection techniques, palatal injection continues to be a painful experience for children. Aims: To compare the pain experienced during extraction of maxillary primary molars with conventional lignocaine anesthesia versus lignocaine and articaine buccal infiltration in children aged 6–14 years. Materials and Methods: A prospective randomized triple blinded study was conducted with ninety children (n = 90), randomly allocated to receive lignocaine conventional anesthesia (Group I [control group]), and buccal infiltration using articaine (Group II [articaine group]) or lignocaine (Group III [lignocaine group]). A composite score of self-report (faces pain scale-revised), behavioral measure (face legs activity cry consolability scale), and a physiological response (pulse rate) was measured following maxillary primary molar extraction. Statistical Analysis Used: To test the mean difference between two groups, Students’ t-test was used and among the three groups, one-way ANOVA with post hoc test was used. Results: Articaine group had significantly lower pain scores for self-report (P < 000.1) and behavioral measures (P < 000.1) while there was no significant difference (P > 0.05) between articaine and control groups during primary maxillary molar extraction. Conclusion: Maxillary primary molar extraction procedure can be successfully accomplished by bypassing the palatal injection. Articaine buccal infiltration can be considered as an alternative to conventional local anesthesia for the extraction of maxillary primary molars.

Context: Electroconvulsive therapy (ECT) is associated with tachycardia and hypertension. Aims: The aim of this study was to compare two doses of dexmedetomidine, esmolol, and lignocaine with respect to hemodynamics, seizure duration, emergence agitation (EA), and recovery profile. Methodology: Thirty patients undergoing ECT were assigned to each of the following pretreatment regimes over the course of five ECT sessions in a randomized crossover design: Group D1 (dexmedetomidine 1 μg/kg), Group D0.5 (dexmedetomidine0.5 μg/kg), Group E (esmolol 1 mg/kg), Group L (lignocaine 1 mg/kg), and Group C (saline as placebo) before induction. Heart rate (HR), mean arterial pressure (MAP), seizure duration, EA, and time to discharge were evaluated. Results: Groups D1, D0.5, and esmolol had significantly reduced response of HR, MAP compared to lignocaine and control groups at 1, 3, 5 min after ECT (P < 0.05). Motor seizure duration was comparable in all groups except Group L (P = 0.000). Peak HR was significantly decreased in all groups compared to control. Total propofol requirement was reduced in D1 (P = 0.000) and D0.5 (P = 0.001) when compared to control. Time to spontaneous breathing was comparable in all the groups (P > 0.05). Time to eye opening and time to discharge were comparable in all groups (P > 0.05) except Group D1 (P = 0.001). EA score was least in Group D1 (P = 0.000). Conclusion: Dexmedetomidine 1 μg/kg, 0.5 μg/kg, and esmolol produced significant amelioration of cardiovascular response to ECT without affecting seizure duration, results being best with dexmedetomidine 1 μg/kg. However, the latter has the shortcoming of delayed recovery.

Introduction: This study aims to compare the efficacy of a combination of an inferior alveolar nerve block (IANB) plus buccal infiltration using 4% articaine versus 2% lignocaine in achieving anesthesia of lower first molar teeth with irreversible pulpitis. Materials and Methods: Seventy adult patients were selected. A random sequence list was employed to administer IANB plus buccal infiltration. After the onset of lip numbness, cold test and electric pulp testing were performed. Five patients, four missed blocks and one no bleeding, were excluded. Heft Parker Visual Analog Scale scores during pulp extirpation were recorded. The data of sixty-five patients were statistically analyzed using Chi-square and Mann–Whitney U-test. Results: The success rate after lip-numbness for articaine is 91.42% and for lignocaine is 94.28%. The difference is statistically, not significant (P = 0.6425). During access, the success rate for lignocaine is 96.87%, whereas 96.96% for articaine. This difference is also not significant (P = 0.982366). Conclusion: IANB plus buccal infiltration using articaine or lignocaine is equally effective in anesthetizing mandibular first molar with irreversible pulpitis.

Context: Celiac plexus block (CPB) (is an effective way to reduce cancer-associated pain in upper abdominal malignancies. Aims: To evaluate the efficacy and safety of different volumes of 70% alcohol in CPB. Settings and Design: Prospective, randomized, controlled clinical study. Subjects and Methods: Thirty patients of carcinoma gall bladder were randomly divided into three groups (n = 10) to receive 20, 30, and 40 ml of 70% alcohol in CPB. Statistical Analysis Used: All the continuous data were assessed analysis of variance followed by post-hoc tests (Tukey′s Honestly Significant Difference test). Ordinal data were compared using Kruskal-Wallis H-test followed by Mann-Whitney U-test. Categorical comparisons were performed using Chi-square test. Results: A significant difference in visual analog scale (VAS) score of Group I, Group I and Group III was observed from week 6 onward until the end of the study. At all these time intervals, VAS scores in Group I was higher than both Groups II and III during this time interval. VAS scores in Group III were significantly lower as compared to Group II from week 10 onward until the end of the study. As compared to baseline, at all the follow-up intervals, mean morphine requirement was significantly lower in Group II and Group III. A quality of life (QOL) score of Group III were higher as compared to Group I. Between Group II and Group III, significant difference was observed at week 16 only when Group III had a higher score as compared to Group II. Conclusions: VAS score, QOL, and reduction in morphine consumption were increased on increasing the volume of alcohol in CPB, 40 ml being most effective.

CONTENT Direct laryngoscopy and endotracheal intubation are the most stressful periods during induction of anaesthesia. These events can lead to hypertension, tachycardia, arrhythmias and myocardial ischaemia. Dexmedetomidine, an alpha-2 adrenoreceptor agonist, is gaining popularity for its sympatholytic, sedative, anaesthetic sparing and haemodynamic stabilising properties without significant respiratory depression. AIM The aim of the study is to compare the efficacy of Dexmedetomidine against Lignocaine in attenuation of haemodynamic response of laryngoscopy and endotracheal intubation. METHODS A randomised controlled study was designed with total of 60 patients of which 30 patients received dexmedetomidine (Group D) 1 mcg/kg IV infusion 10 minutes prior to endotracheal intubation and 30 patients received 1.5 mg/kg of lignocaine intravenous (Group L) 3 mins. prior to endotracheal intubation. Inj. Thiopentone was given until eyelash reflex disappeared and intubation was facilitated with succinylcholine. Anaesthesia was maintained with 33:66 Oxygen: Nitrous oxide, halothane, and vecuronium. The patients were evaluated for change in systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP) & heart rate (HR) during pre-induction, just prior to induction at 0,1,3,5 & 10 mins. after laryngoscopy & intubation. Any adverse effects of the drugs were noted. RESULTS The two groups were comparable regarding age, sex, weight and type of surgeries. The HR, SBP, DBP, and MAP values were significantly lower in Group D at induction and statistically lower at 1, 3, 5, and 10 mins. when compared to Group L. CONCLUSION Dexmedetomidine attenuates the haemodynamic stress response to laryngoscopy and intubation more effectively when compared with lignocaine without any adverse effects.

Background and Aims: Propofol is widely used for induction of anaesthesia, although the pain during its injection remains a concern for all anaesthesiologists. A number of techniques have been adopted to minimise propofol-induced pain. Various 5-hydroxytryptamine-3 antagonists have shown to reduce propofol-induced pain. Hence, this placebo-controlled study was conducted to compare the efficacy of ondansetron, ramosetron and lignocaine in terms of attenuation of propofol-induced pain during induction of anaesthesia. Methods: Hundred and fifty adult patients, aged 18–60 years, posted for various elective surgical procedures under general anaesthesia were randomly assigned to three groups of 50 each. Group R received 0.3 mg of ramosetron, Group L received 0.5 mg/kg of 2% lignocaine and Group O received 4 mg of ondansetron. After intravenous (IV) pre-treatment of study drug, manual occlusion of venous drainage was done at mid-arm with the help of an assistant for 1 min. This was followed by administration of propofol (1%) after release of venous occlusion. Pain was assessed with a four-point scale. Unpaired Student's t-test and Chi-square test/Fisher's exact test were used to analyse results. Results: The overall incidence and intensity of pain were significantly less in Groups L and R compared to Group O (P ≤ 0.001). The incidence of mild to moderate pain in Groups O, R and L was 56%, 26% and 20%, respectively. The incidence of score '0' (no pain) was significantly higher in Group L (76%) and Group R (72%) than Group O (34%) (P < 0.001). Conclusion: Pre-treatment with IV ramosetron 0.3 mg is equally effective as 0.5 mg/kg of 2% lignocaine in preventing propofol-induced pain and both were better than ondansetron.

Introduction: Propofol belongs to one of the commonly used intravenous (IV)-inducing anaesthetic agents. However, at least 70% of the patients experience pain on propofol injection. To reduce pain, various methods were tried. A randomised, double-blinded comparative study was done by us. Materials and Methods: A total of 180 patients belonging to American Society of Anesthesiologists Grade 1 and 2, who were for elective or emergency surgery, were randomly divided into three groups. All surgeries were under general anaesthesia. Group 1 was administered 2 ml of 2% IV lignocaine, Group 2 was administered IV ondansetron 2 mg and Group 3 was administered IV ondansetron 4 mg. One-fourth of the total dosage was injected over 5 s, and pain was assessed in the patients during injection of propofol by verbal rating scale. Results: The intensity and incidence of pain were comparatively less with lignocaine and ondansetron 4 mg overall. Even though there was better relief of pain with lignocaine, ondansetron 4 mg along with venous occlusion also reduced propofol injection pain. Conclusion: Ondansetron also can be used as an alternative in relief of pain on propofol injection just like lignocaine.

Introduction: A prospective randomized double-blind controlled trial was conducted to evaluate the latency and duration of pterygomandibular nerve block with a mixture of 1.8 ml 2% lignocaine with 1:80,000 epinephrine and 1 ml of 4 mg dexamethasone and its impact on postoperative sequelae after surgical extraction of impacted mandibular third molars. Materials and Methods: This study was conducted in 40 subjects referred to the department of oral and maxillofacial surgery; they were divided into 20 subjects each in group A and B with the age range of 18–72 years planned for elective surgical removal of unilateral impacted mandibular third molar. Each patient was randomly selected to receive anesthesia using 1.8 ml 2% lignocaine with 1:80,000 epinephrine in group A or 2.8 ml twin mix (1.8 ml 2% lignocaine with 1:80,000 epinephrine + 1 ml 4 mg dexamethasone) in group B. After injection of the anesthetic solution, the time to anesthetic effect, duration of anesthesia from initial patient perception of the anesthetic effect to the time when the effect subsides, need to reanesthetize the surgical site were recorded, and 10-point visual analog scale (VAS) was used to subjectively assess the overall pain intensity while injecting the study drug, during surgery, and in the postoperative period. Results: Mean VAS value for pain on local anesthetic injection was less in twin-mix group. The time of onset of the local anesthetic was significantly less for the study group T, 51.35 ± 7.15 s when compared with patients in study group C (P less than 0.0001). The duration of soft tissue anesthesia was longer for all the patients in the study group T. On comparative evaluation between study group C and study group T, patients in the control group had more severe swelling and reduction in mouth opening in the postoperative period. Conclusion: The addition of dexamethasone to lignocaine and its administration as an intraspace injection significantly shortens the latency and prolongs the duration of the soft tissue anesthesia, with improved quality of life in the postoperative period after surgical extraction of mandibular third molars.

Background: Infiltrative anesthetics are frequently chosen because of their proven safety record, low cost, ease of storage, widespread availability, and rapid onset of action; a good topical anesthetic agent can eliminate the use of painful injections prior to procedures. Aims: The present study was carried out to compare the eutectic mixture of local anesthetic (EMLA), cryogel, lignocaine spray, and controls for pain caused during common dermatological procedures. Methods: This study included 120 patients who were divided into four groups with 30 patients each for needle extraction for molluscum contagiosum and milia; intralesional injection for keloids and alopecia areata; radiofrequency ablation for warts, acrochordons, and intradermal nevus; and dermabrasion for surgical treatment of vitiligo. Topical anesthetics such as EMLA, cryogel, and lignocaine spray were applied and pain was assessed using visual analog scale (VAS) score. Data were analyzed using Microsoft Excel. P

Background Single inferior alveolar nerve block is ineffective in achieving adequate pulpal anesthesia in 30–80% of patients due to anatomical variations, local tissue pH, central sensitization, and several factors. Various supplementary techniques and combination of adjuvants with lignocaine are used to overcome these failures. Magnesium sulfate (MgSO4), one such adjuvant, acts at the N-methyl-D-aspartate glutamate receptor resulting in effective anesthesia. The aim of this prospective, randomized, double-blind, clinical controlled trial was to evaluate the onset, anesthetic efficacy, duration and post-operative analgesia of 2% lignocaine with and without the addition of MgSO4 in patients with symptomatic irreversible pulpitis and apical periodontitis. Methods Fourty-two patients were randomly divided into three groups: 2% lignocaine (group 1) and 2% lignocaine with MgSO4 (75 mg) and (150 mg) in groups 2 and 3, respectively. Pre-operative vitals and Heft Parker–Visual Analogue Scale (HP-VAS) pain scores were recorded. The onset of anesthesia, anesthetic efficacy, and duration of anesthesia were evaluated post administration of the local anesthetic solution. The post-operative analgesia was examined at intervals of 2, 6, 12, 24, and 48 h. Results Administration of 150 mg MgSO4 hastens the onset of anesthesia (1.29 min) and produces better anesthetic efficacy (3.29 HP-VAS) compared to group 2 (2.07 min and 9.14 HP-VAS) and group 1 (3.29 min and 35.79 HP-VAS), respectively. The duration of anesthesia was significantly higher in group 3 (247.07 min) compared to that of groups 2 and 1 (190 min and 110.21 min) with P < 0.05. Conclusion Combining 75 mg or 150 mg of MgSO4 with lignocaine is more effective than 2% lignocaine and 75 mg of MgSO4 is adequate for endodontic procedures.

This systematic review aims to determine if a single buccal infiltration (without palatal infiltration in the maxilla and Inferior Alveolar Nerve Block in the mandible) with 4% articaine can induce adequate analgesia for the extraction of primary molars (Maxillary and Mandibular) in children. PubMed, Ovid SP, and Embase were searched for studies published between January 1990 and March 2020 with the relevant MeSH terms. Titles and abstracts were screened preliminarily, followed by the full-texts of the included studies. Five articles were included for this systematic review. The outcome investigated was “Procedural pain during the extraction of primary molars after injection with single buccal infiltration of 4% articaine in comparison to single buccal infiltration, double infiltration (buccal and palatal/lingual), and inferior alveolar nerve block with 2% lignocaine.” Of the five studies that evaluated subjective pain during extraction, two reported no significant difference between the articaine and lignocaine groups, and the remaining three reported lower subjective pain during extraction in the articaine group. Only two studies evaluated objective pain scores during extraction, and both studies reported lower pain scores in the articaine group. There is insufficient evidence to justify the statement that a single buccal infiltration of 4% articaine alone is sufficient for the extraction of primary molars. Further evidence is required to justify the claim that palatal infiltrations and IANB can be replaced with the use of 4% articaine single buccal infiltration for the extraction of primary molars in children.

Background and Objectives: No previous study has compared different concentrations of lignocaine for topical anesthesia during endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA). In this pilot study, we compared 1% versus 2% lignocaine for topical airway anesthesia during EBUS-TBNA. Methods: In this double-blind, randomized trial, subjects were randomized to receive either 1% or 2% lignocaine for “spray-as-you-go” administration. All received combined moderate intravenous sedation (midazolam and fentanyl). Ten percent pharyngeal lignocaine spray (two sprays) and nebulized lignocaine (2.5 ml of 4% solution) were administered to all subjects. Administration of additional lignocaine was allowed at operator's discretion. The primary endpoints were operator-rated overall procedural satisfaction and cough, each assessed on visual analog scale (VAS), while the secondary outcomes included patient-rated faces pain scale scores, cumulative lignocaine dose, number of subjects receiving lignocaine >8.2 mg/kg, doses of midazolam/fentanyl between groups, and adverse events during procedure. Results: The mean (standard deviation [SD]) VAS scores for operator-rated procedure satisfaction were 64.2 (25.6) and 68.7 (23.7) in 1% and 2% group, respectively (P = 0.35). The median (interquartile range) VAS scores for operator-rated cough were 48.4 (23.9–69.9) in 1% group and 38.7 (18.6–69.5) in 2% group (P = 0.24). The mean [SD] cumulative lignocaine received in the 2% lignocaine group (248.6 [29.1] mg) was significantly greater than in 1% lignocaine group (178.5 [14.6] mg) (P < 0.01). Conclusion: One percent lignocaine is equally efficacious as 2% lignocaine for topical anesthesia during EBUS-TBNA, at a significantly lower cumulative lignocaine dose.

Aim: The aim of this study was to investigate whether infiltration of the upper eyelid skin is less painful with prilocaine than with lidocaine.Methods: In 40 consecutive patients scheduled for bilateral upper blepharoplasty, one upper eyelid was anaesthetised with lidocaine with epinephrine and the other with prilocaine with felypressin. After injection of each upper eyelid, the patient scored the pain experienced on infiltration using a visual analogue scale (0-10). In addition, the surgeon scored the need for reinjection during the operation; differences in perioperative bleeding; and degree of oedema, erythema and haematoma before discharge on a four-point rating scale (no, minimal, moderate or severe).Results: Pain scores were significantly lower in upper eyelids injected with lidocaine than in those injected with prilocaine (p = 0.036). In addition, scores for oedema, erythema and haematoma were significantly lower in upper eyelids anaesthetised with lidocaine than in those anaesthetised with prilocaine (respectively, p = 0.001, p = 0.004 and p = 0.000).Conclusions: Compared with prilocaine with felypressin, lidocaine with epinephrine is significantly less painful in anaesthetising the upper eyelids; gives significantly less postoperative oedema, erythema and haematoma; and provides better haemostasis during upper blepharoplasty. (C) 2015 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.