scholarly journals Compare the Effects of Dexmedetomidine Infusion versus Normal Saline as Placebo on Haemodynamic Response in Elective Laparoscopic Surgery Under General Anaesthesia

2020 ◽  
Vol 5 (2) ◽  
pp. 1-8
Author(s):  
V. Ravi Sankar ◽  
T. Jamuna ◽  
B. Raju

Background: Throughout the present medical age, laparoscopic surgery is the most effective diagnostic and therapeutic methods. But it is associated with potentially harmful neuroendocrine response. Subjects and Methods: In our study we used dexmedetomidine infusion in group D and normal saline at a rate of 0.4mcg / kg / hr as placebo in group N beginning from 10 minutes before induction before pneumoperitoneum release. Patients in both groups were alike in age, gender, BMI, grade of ASA and anaesthesia. Results: After 10 min infusion of dexmedetomidine and normal saline in group D and group N respectively, fall in HR, DBP and Mean arterial pressure was significantly increased in group D compared to group N. Difference found in both the groups was statistically significant. Group N showed significant increase in HR, SBP, DBP and MAP during laryngoscopy, intubation and at 2 min , 5 min and 10 min after creation of pneumoperitoneum. Difference found was statistically significant in both groups. Thus attenuation in HR, SBP, DBP and MAP was seen in group D as compared to group N during laryngoscopy, tracheal intubation and pneumoperitoneum which were statistically significant. Group N showed statically significant increase in HR, DBP  and MAP during extubation compared to group D. Difference found in both the groups was statistically significant. Thus attenuation in HR, DBP and MAP was seen in group D as compared to group N during extubation which was statistically significant. Postoperative sedation score was more in group D compared to group N which was statistically significant. Post-extubation, rescue analgesia was required early in group N compared to group D. Adverse effect in form of bradycardia was seen in 2 patients in group D which did not require atropine administration. Conclusion: Dexmedetomidine infusion at a rate of 0.4 mcg / kg / hr apparently started 10 minutes before the induction of anesthesia before release of pneumoperitoneum without any bolus dose. Useful adjuvant anesthesia to diminish the response of haemodynamic stress to intubation, Pneumoperitoneum, and extubation in laparoscopic surgical patients.

2020 ◽  
Author(s):  
Xiaoxia Gu ◽  
Jingjing Wang ◽  
Huihua Liao ◽  
Jian Mo ◽  
Weiming Huang ◽  
...  

Abstract Background: To compare the efficacy and safety of different compatibility schemes in the prevention of visceral pain after gynecological laparoscopic surgery. Methods: from April 2019 to April 2020, patients undergoing elective gynecological laparoscopic surgery in our hospital were randomly divided into four groups: group A: sufentanil 3 μ g / kg; group B: low-dose nalbuphine group: 0.1 mg / kg of nabufen + 3 μ g / kg of sufentanil; group C: medium dose of nabufen group: 1 mg / kg of nabufen + 2 μ g / kg of sufentanil; group D: high-dose nabufen 2 There were 30 cases in each group. The degree of pain and the number of adverse reactions at 2, 4, 8, 12, 24 and 48 hours after operation were observed and recorded. The number and dosage of morphine used as a remedial analgesic were recorded. The pain degree was assessed by visual analogue scale (VAS). The total amount of analgesic pump used, the total number of times of pressing and the effective times of pressing were recorded. The adverse reactions included respiratory depression, nausea and vomiting, drowsiness, restlessness and skin The skin itches. Results: the analgesic effect of group B was similar to that of group A, and there was no significant difference in the number of invalid pressing, total pressing times and rescue analgesia rate (P > 0.05), while the invalid pressing times, total pressing times and remedial analgesia rate of group C and group D were significantly lower than those of group A (P < 0.05). There was no significant difference between group C and group D in the number of invalid compressions, the total number of compressions and the rate of remedial analgesia (P > 0.05), suggesting that increasing the dose of nalbuphine could not significantly increase the analgesic effect. The incidence of postoperative nausea and vomiting, skin pruritus, lethargy and Ramsay Sedation score in group B and group C were significantly lower than those in group A (P < 0.05). Ramsay Sedation score and incidence of drowsiness were lower than those in group D, which indicated that the incidence of adverse reactions was higher in group D than group B and group C.Conclusion: the combination of 1 mg / kg nabufen and 2 μ g / kg sufentanil is a safe and effective combination scheme for the prevention of visceral pain after gynecological laparoscopic surgery with small adverse reactions.Trial registration: http://www.chictr.org.cn/showproj.aspx?proj=40635Registration number:ChiCTR1900025076 . Prospectively registered on 10 August 2019.


2020 ◽  
Vol 5 (1) ◽  
pp. 96-99
Author(s):  
Viral Prakashkumar Patel ◽  
Shital Hardik Halvadia

Background: Spinal anesthesia significantly impairs the thermoregulation system by inhibiting tonic vasoconstriction, which plays a significant role in temperature regulation. Various non-pharmacological and pharmacological methods are available for the control of shivering during anesthesia. The present study was done with an aim to compare the two drugs Pethidine and Dexmedetomidine for the control of intraoperative shivering under spinal anesthesia.Subjects and Methods:A prospective randomized study was carried out in the Department of Anaesthesiology, on 100 patients who developed intra-operative shivering following spinal anesthesia for numerous surgical procedures. When patients developed shivering of higher than mentioned grades, they were randomly assigned to one of the 2 study groups: Group D- Dexmedetomidine group receiving single intravenous bolus dose of 0.5mcg/kg over 5 min.  Group P: Pethidine group patients receiving 0.5mg/kg Pethidine IV over 5 min. Patients were intently monitored for the failure of the drug, Recurrence of shivering and side effects like nausea, vomiting, bradycardia (< 50/min), hypotension (>20% of baseline), giddiness and sedation score were recorded.Results:We found the Pethidine group had 62.5% and Dexmedetomidine had 67.5% of grade 3 shivering. The grades of shivering were comparable between the two groups with no statistical difference. We found the dexmedetomidine group had a significant reduction in time required to control shivering and vanishing of shivering after drug.Conclusion:Both dexmedetomidine (0.5mcg/kg) and Pethidine (0.5mg/kg) are effective in treating patients with post-spinal anesthesia shivering but the time taken for control of shivering was shorter with Dexmedetomidine as compared to Pethidine.


Author(s):  
Anish Kumar Singh ◽  
Sanjay Johar ◽  
Sudesh Kumar ◽  
Mamta Jain ◽  
Kiranpreet Kaur ◽  
...  

Introduction: Eighth Joint National Committee (JNC 8) has reclassified earlier prehypertension {Systolic Blood Pressure (SBP) 130-139 mm of Hg and/or Diastolic Blood Pressure (DBP) 80-89 mmHg} as stage 1 HTN. These patients may be at greater risk of perioperative haemodynamic instability, more so in case of laparoscopic surgeries and alpha-2 agonists premedication may be useful in such patients. Aim: To assess perioperative haemodynamic fluctuations in untreated stage 1 hypertension (HTN) patients and the role of Dexmedetomidine (Dexmed) in it. Materials and Methods: This prospective, randomised, double blind study was conducted at Pandit Bhagwat Dayal Sharma Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India from March 2019 to September 2020. Sixty-five patients with stage 1 HTN not on any anti-hypertensive drugs undergoing laparoscopic cholecystectomy were enrolled and randomly divided into group D (dexmedetomidine) and group NS (Normal Saline). Group D received Dexmed 1 μg/kg over 10 minutes before induction, followed by continuous infusion of Dexmed at 0.2 μg/ kg/h and Group NS received similar volume of normal saline. Serial recording of pulse rate, Mean Arterial Pressure (MAP) and oxygen saturation was done. Postoperative sedation scores, extubation time and time to first rescue analgesia were also assessed. For analysis, quantitative variables were expressed as mean±SD and compared using unpaired and paired t-test. Mann-Whitney test was used for quantitative data that did not follow a normal distribution. Qualitative variables were expressed as frequencies/percentages and compared using Chi-square test. A p-value <0.05 was considered statistically significant. Results: A total of 60 patients (30 in group NS, mean age 38.40±10.32 years and 30 in group D, mean age 42.5±11.72 years) were analysed in the present study. In NS group, haemodynamic variations were seen at induction, Laryngoscopy and Intubation (L&I), creation and release of Pneumoperitoneum (PNP) and extubation but actual changes were within 10-12% of baseline value, whereas in group D, pulse rate and MAP remained stable and moderately lower than baseline throughout the perioperative period. An increase in extubation time was observed in group D (15.57±3.16 vs.9.15±1.60 min). Group D also had significantly higher sedation scores postextubation. Group NS patients demanded rescue analgesia early (18.33±7.46 min vs.43.53±8.57 min) (p=0.001). Conclusion: It was concluded that the administration of i.v. Dexmed 1 μg/kg over 10 minutes followed by infusion at 0.2 μg/Kg/h results in haemodynamic stability during surgical stress, slightly delayed but smooth extubation, delayed demand of postoperative rescue analgesia and mild sedation of short duration. Dexmed induced effects help in improving the recovery profile of the patient and keeping the patient more comfortable in the postoperative period.


2021 ◽  
Vol 10 (35) ◽  
pp. 3005-3011
Author(s):  
Sinjini Agarwal ◽  
Neeta Chaudhari Verma ◽  
Amol P.S. ◽  
Pyarelal Pyarelal ◽  
Suzanna Elsa Varghese ◽  
...  

BACKGROUND Caudal epidural block is a highly popular method of administering analgesia to children undergoing infraumbilical surgeries. Addition of clonidine, a centrally acting alpha 2 agonist as an adjuvant to caudal bupivacaine has added advantages of providing prolonged post-operative analgesia and also, thus reducing the number of doses of post-operative rescue analgesics. In this study, we wanted to compare the efficacy and safety of caudally administered clonidine as an adjuvant to bupivacaine. METHODS This was a prospective, comparative interventional study and was conducted in the Department of Anaesthesia at JNMC, Sawangi (Meghe) Wardha in accordance with the guidelines and permission of the institutional ethical review board. The study was carried out with 40 patients in each group randomly allocated using computer generated software, posted for infraumbilical surgeries between the age group 2 years to 7 years, American Society of Anaesthesiologists (ASA) grade I and II. Group B (control group) – Caudal epidural with 0.25 % bupivacaine 1 ml/kg + 1 ml normal saline. Group C (study group)- Caudal epidural with 0.25 % bupivacaine 1 ml/kg with clonidine 1 microgram/kg + 1 ml normal saline. RESULTS In our study, the mean duration of analgesia i.e. mean time for requirement of first rescue analgesia in group C was 9.9 ± 1.4 hours as compared to 4.7 ± 1.4 hours in group B (P < 0.0001). In this study, we used FLACC (face, legs, activity, cry, consolability) pain scale with its 0 - 10 score range for assessing the pain intensity. At FLACC pain score 4 or more, first dose of rescue analgesic was given. This score was reached at 8.8 hours in Group C (mean FLACC score at 3.8 ± 0.7) and 3.6 hours in Group B (mean FLACC score 3.4 ± 0.9) with P value (= 0.014) (significant). Group C required significantly lesser number of rescue analgesics in comparison to Group B. The number of doses of rescue analgesics required in the Group B were definitely more than that in Group C wherein 62.5 % required 3 doses and 25 % required 4 doses of rescue analgesics. On the other hand, in Group C the number of patients requiring more than 2 doses of rescue analgesia was 0 % thus proving the efficacy of clonidine in prolonging post-operative analgesia. CONCLUSIONS We concluded that caudally administered clonidine, in a dose of 1 microgram/kg as an adjuvant to 0.25 % bupivacaine 1 ml/kg, proved to be efficacious in providing prolonged analgesia both intraoperatively and post-operatively. Also, we observed that this addition, reduced the requirement of post-operative rescue analgesia and its associated side effects. KEY WORDS Caudal Epidural, Infraumbilical Paediatric Surgery, Clonidine, Bupivacaine, Postoperative Analgesia


2021 ◽  
pp. 74-77
Author(s):  
Jyoti Rani ◽  
Meenaxi Sharma ◽  
Deepak Kumar ◽  
Anumeha Jain

Background: Laryngoscopy, intubation and pneumoperitoneum during general anaesthesia are severe noxiousstimuli that can produce many adverse effects. Aim of the study was to compare the efcacy of oral pregabalin versus intravenous bolus dose of dexmedetomidine as premedication for attenuating the haemodynamic pressor response during intubation, pneumoperitonization and extubation as well as perioperative stability and requirement of postoperative analgesics. Methods: A Randomised study was conducted in 100 patients undergoing Laparoscopic Cholecystectomy. Participants were divided into two groups in which group P (n=50) received oral pregabalin 150mg with sips of water 1 hour prior to surgery and intravenous normal saline (0.9%) 10ml, 10 mins prior to induction over 10 minutes and those in group D (n=50) received oral placebo tablet with sips of water 1 hour prior to surgery and intravenous dexmedetomidine at 1mcg/kg diluted with normal saline (total volume 10ml), 10 minutes prior to induction over 10 minutes. Hemodynamic parameters like heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), oxygen saturation (SPO2) and ETCO2 were noted before premedication and induction (baseline), at the end of induction and at laryngoscopy and intubation (I0) and then at 1,3,5,10 minutes after intubation as well as atstart of pneumoperitoneum and then after every 10 minutesinterval till the deation of CO2 and also at the time of extubation and 10 minutes thereafte


2017 ◽  
Vol 4 (20;4) ◽  
pp. 261-269
Author(s):  
Hyeon-Jeong Lee

Background: Epidurally administered dexamethasone might reduce postoperative pain. However, the effect of epidural administration of dexamethasone on postoperative epidural analgesia in major abdominal surgery has been doubtful. Objectives: To investigate the effects and optimal dose of epidural dexamethasone on pain after major abdominal surgery. Study Design: A prospective randomized, double-blind study. Setting: University hospital. Methods: One hundred twenty ASA physical status I and II men, scheduled for gastrectomy, were enrolled. Patients were randomly assigned to receive one of 3 treatment regimens (n = 40 in each group): dexamethasone 5 mg (1 mL) with normal saline (1 mL) (group D) or dexamethasone 10 mg (2 mL) (group E) or 2 mL of normal saline (group C) mixed with 8 mL of 0.375% ropivacaine as a loading dose. After the surgery, 0.2% ropivacaine - fentanyl 4 μg/mL was epidurally administered for analgesia. The infusion was set to deliver 4 mL/hr of the PCEA solution, with a bolus of 2 mL per demand and 15 minutes lockout time. The infused volume of PCEA, intensity of postoperative pain using visual analogue scale (VAS) during rest and coughing, incidence of postoperative nausea and vomiting (PONV), usage of rescue analgesia and rescue antiemetic, and side effects such as respiratory depression, urinary retention, and pruritus were recorded at 2, 6, 12, 24, and 48 hours after the end of surgery. Results: The resting and effort VAS was significantly lower in group E compared to group C at every time point through the study period. On the contrary, only the resting VAS in group D was lower at 2 hours and 6 hours after surgery. Total fentanyl consumption of group E was significantly lower compared to other groups. There was no difference in adverse effect such as hypotension, bradycardia, PONV, pruritis, and urinary retention among groups. Limitations: Use of epidural PCA with basal rate might interrupt an accurate comparison of dexamethasone effect. Hyperglycemia and adrenal suppression were not evaluated. Conclusions: Epidural dexamethasone was effective for reducing postoperative pain. Especially, an epidural dexamethasone dose of 10 mg was more effective than a lower dose in patients undergoing gastrectomy which was associated with moderate to severe postoperative pain. IRB approval: D-1507-019-042 Clinical trials registration: KCT0001754 Key words: Patient controlled epidural analgesia, opioid, fentanyl, local anesthetic, ropivacaine, dexamethasone Pain Physician 20


Author(s):  
Kumar Shailesh ◽  
Jitendra Prasad Singh ◽  
Arjun Prasad ◽  
Veena Horo

Introduction: Several adjuncts like adrenaline, opioids and alpha-2 adrenergic agonists are being used with local anaesthetics intrathecally for prolongation of intra-operative and post-operative analgesia and to reduce the side-effects of high doses of local anaesthetics. Aim: The present study was done to evaluate the onset and duration of sensory and motor block, hemodynamic effects, post-operative analgesia and adverse effects of Dexmedetomidine given intrathecally with hyperbaric 0.5% Bupivacaine. Materials and methods: Sixty inpatients of ASA class I and II scheduled for various lower abdominal surgeries under Sub-Arachnoid Block were randomly divided into two groups of 30 each namely C (Control), D(Dexmedetomidine) . All received 12.5mg hyperbaric bupivacaine plus 0.5 ml Normal Saline in Group C (Control),10µg Dexmedetomidine (diluted in preservative free Normal saline of 0.5ml) in Group D(Dexmedetomidine) . The onset time to reach peak sensory and motor level, the regression time for sensory and motor block, hemodynamic changes and side-effects were noted. Results: The duration of sensory and motor block, rescue analgesia was significantly prolonged in Dexmedetomidine group when compared to that of Control group. Conclusion: Dexmedetomidine 10 µg seems to be a better neuraxial adjuvant to hyperbaric Bupivacaine. Keywords: Bupivacaine; Dexmedetomidine; intrathecal.


2021 ◽  
Vol 8 (17) ◽  
pp. 1105-1110
Author(s):  
Pramod Kumar Palai ◽  
Sheela Ekka ◽  
Mahendra Ekka ◽  
Saurabh Agrawal ◽  
Sapan Kumar Jena

BACKGROUND Middle ear surgeries done under local anaesthesia require adequate patient sedation and analgesia to prevent patient anxiety and movement during surgical procedures. This study was undertaken to compare dexmedetomidine and propofol for their sedative and analgesic properties, safety profile, adverse events and recovery profile in patients undergoing middle ear surgery under monitored anaesthesia care. METHODS This is a prospective observational study. 96 patients of both sexes, of American society of anaesthesiologist (ASA) grade I or II, between 18 - 60 years of age were randomly divided into two groups; group D and group P consisting of 48 patients each. Patients in group D received a loading dose of injection dexmedetomidine 1 µg / kg I.V. over 10 minutes followed by an infusion at a rate of 0.5 µg / kg / hr. Patients in group P received a loading dose of injection propofol 75 µg / kg / min. I.V. over 10 min followed by an infusion at a rate of 50 µg / kg / min. Time taken to achieve the modified Aldrete score of 10 was compared between both the groups. Before discharge from post anaesthesia care unit (PACU), patient’s satisfaction with sedation & surgeon satisfaction was recorded on Likert scale. Time to rescue analgesia was compared. RESULTS The Bi-Spectral Index values in intra-operative period were on the lower side in the group D as compared to the corresponding values in the group P, but P values were statistically insignificant suggesting that both dexmedetomidine and propofol produced similar sedation. Time to rescue analgesia was greater for group D. CONCLUSIONS Having similar sedation effect, dexmedetomidine was better than propofol for sedation in patients undergoing middle ear surgery under monitored anaesthesia care. KEYWORDS Dexmedetomidine, Propofol, Monitored Anaesthesia Care, Bi-spectral Index


2020 ◽  
pp. 1-5
Author(s):  
Mehak Gul ◽  
Umar Nisar Shah ◽  
Mohd Rafi Denthoo ◽  
Basharat Ahad

OBJECTIVES : To study the role of dexmedetomidine on emergence agitation and its effect on extubation in paediatric adenotonsillectomy. Our study involves the assessment of postoperative pain by Objective Pain Scale and need for rescue analgesia and other untoward events in PACU. The study also included the comparision of post operative recovery time by Modified Aldrete Recovery Score using dexmedetomidine and normal saline in adenotonsillectomy for pediatric patients. METHODS : After induction of general anesthesia patient was put on controlled ventilation and maintained on sevoflurane 1.5-2% with 66% O2 and 33% N2O. At the end of surgery patients received either dexmedetomidine or normal saline over a period of 5 minutes, sevoflurane and nitrous oxide were discontinued, and residual muscle relaxation was reversed. Tracheal extubation time (time from anesthetic gas discontinue to tracheal extubation) and emergence time (time from anesthetic gas discontinue to eye opening on command) were recorded. Incidence of untoward airway events after extubation were also noted. The subject’s postoperative behaviour was assessed using Pediatric Anesthesia Emergence Delirium (PAED). In PACU, the intensity of pain was assessed by using an observational pain score (OPS). Any untoward events were noted and patient was shifted as per modified PACU score. RESULTS: In this randomized comparative study, single dose of dexmedetomidine (0.5mcg/kg) was found to be associated with a statistically significant decrease in the incidence of emergence agitation along with smooth extubation in pediatric patients undergoing adenotonsillectomy with sevoflurane anesthesia. In addition, lower incidence of post-operative nausea and vomiting, lower pain score and shorter duration of stay in post-anesthesia care unit were observed. Although it was seen that the extubation was prolonged in the dexmedetomidine group in comparison to the placebo. CONCLUSION: Dexmedetomidine reduces emergence agitation and provides smooth extubation in pediatric adenotonsillectomy patients on sevoflurane anesthesia.


2018 ◽  
Author(s):  
Shuying Li ◽  
Hui Li ◽  
Juan Ni ◽  
Yushan Ma

Abstract Background: Catheter-related bladder discomfort (CRBD) frequently occurs during recovery in patients who undergo intra-operative urinary catheterization distress. We conducted this study to compare the effect of intravenous lidocaine and dexmedetomidine infusion for preventing CRBD. Methods: 120 patients undergoing elective open abdominal hysterectomy and hysteromyoma requiring urinary bladder catheterization were randomly allocated into three groups of 40 each. Group L received a 2 mg/kg lidocaine bolus followed by infusion of 1.5 mg/kg/h; Group D received a 0.5 mg/kg dexmedetomidine bolus followed by infusion of 0.4 mg/kg/h; Group C received a bolus and infusion of normal saline of equivalent volume. The incidence and different severity (mild, moderate, and severe) of CRBD were assessed on arrival in the postanaesthesia care unit at 0, 1, 2, and 6 h postoperatively. Results: The incidence of CRBD was significantly lower in Group L and Group D compared with Group C at 0, 1, and 2 h. However, there was no significant difference among the three groups regarding the different severity of CRBD at all time points. The requirement of rescue tramadol for CRBD was lower in group L and group D than in group C. The incidence of sedation was significantly higher in Group D compared to Group L and Group C, though no difference in other adverse effects was observed. Conclusions: Intravenous lidocaine and dexmedetomidine infusion reduced the incidence of CRBD as well as the additional tramadol requirement for CRBD, but had no effect on the different severity of CRBD.


Sign in / Sign up

Export Citation Format

Share Document