Emergence from Anesthesia in the Prone versus  Supine Position in Patients Undergoing Lumbar Surgery

2000 ◽  
Vol 93 (4) ◽  
pp. 959-963 ◽  
Author(s):  
Michael A. Olympio ◽  
B. Lee Youngblood ◽  
Robert L. James

Background Conventional supine emergence in patients undergoing prone lumbar surgery frequently results in tachycardia, hypertension, coughing, and loss of monitoring as the patient is rolled supine. The prone position might facilitate a smoother emergence because the patient is not disturbed. No data describe this technique. Methods Fifty patients were anesthetized with fentanyl, nitrous oxide, isoflurane, and rocuronium. By the conclusion of surgery, all patients achieved spontaneous ventilation and full reversal of neuromuscular blockade in the prone position, as the volatile anesthetic level was reduced. Baseline heart rate and mean arterial pressure were recorded. Patients were then randomized at time 0 to the supine (n = 24) or prone (n = 21) position as 100% oxygen was administered. Patients in the supine position were then rolled over, while those in the prone position remained undisturbed. Heart rate, mean arterial pressure, and coughs were recorded until extubation. Tracheas were extubated on eye opening or purposeful behavior. Results When compared with the supine group, prone patients had significantly less increase in heart rate (P = 0.0003, maximum increase 9.3 vs. 25 beats/min), less increase in mean arterial pressure (P = 0.0063, maximum increase 4.8 vs. 19 mmHg), less coughing (P = 0.0004, 7.0 vs. 23 coughs), and fewer monitor disconnections (P < 0.0001). Time to extubation from time 0 was similar (4.0 vs. 3.7 min, prone vs. supine). No one required airway rescue. There was no significant difference in need for restraint (three prone, four supine). Conclusions Prone emergence and extubation is associated with less hemodynamic stimulation, less coughing, and less disruption of monitors, without specifically observed adverse effects, when compared with conventional supine techniques.

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Priyanka Goyal ◽  
Manda Nagrale ◽  
Sandeep Joshi

Background. Emergence in supine position in patients undergoing surgery in prone position leads to tachycardia and hypertension, coughing, and the loss of monitoring when patients are rolled to supine position at the end of surgery, aim of this prospective randomized trial was to study whether prone emergence causes less hemodynamic stimulation, coughing, and monitor disconnection compared to supine emergence in patients undergoing lumbar laminectomy. Patients and Methods. This study was conducted on 60 patients who underwent Lumbar laminectomy in prone position. Patients were anaesthetized using injected fentanyl 2 μg kg−1, midazolam 0.1 mg kg−1, and thiopentone 5–6 mg kg−1 and vecuronium bromide. At the end of surgery patients were randomized into prone or supine group of 30 each. Supine group patients were rolled back and prone were left undisturbed. Extubation was done after complete reversal of neuromuscular block. Heart rates and MAP were noted at various points of time. Coughing, vomiting, monitor disconnection if any. Results. Mean arterial pressure and heart rate were significantly higher in supine patients as compared to prone patients before and after extubation (P value < 0.05). Incidence of coughing, vomiting and monitor disconnection was highly significant in prone group than in supine group. Conclusion. Emergence and extubation in prone position can be safely performed in selected group of patients undergoing surgery in prone position.


2020 ◽  
Vol 9 (1) ◽  
pp. 8-15
Author(s):  
Arya Justisia Sani ◽  
Ardhana Tri Arianto ◽  
Muhammad Husni Thamrin

Latar Belakang dan Tujuan: Peningkatan respon hemodinamik yang disebabkan oleh nyeri dapat menyebabkan peningkatan aliran darah otak dan tekanan intrakranial. Blok scalp pada kraniotomi menumpulkan respon hemodinamik karena rangsangan nyeri serta mengurangi penambahan analgesi lain. Penelitian ini bertujuan untuk mengetahui efektifitas blok scalp sebagai analgetik pada kraniotomi.Subjek dan Metode: Penelitian ini menggunakan uji klinik acak tersamar ganda pada 36 pasien dengan status fisik ASA 1–3 dilakukan operasi kraniotomi eksisi dan memenuhi kriteria inklusi. Sampel dibagi menjadi kelompok I (dengan blok scalp) dan kelompok II (tanpa blok scalp). Blok dilakukan sesaat setelah induksi anestesi. Digunakan levobupivakain 0,375% sebanyak 3 ml tiap insersi, pada masing-masing saraf. Tekanan darah, tekanan arteri rata-rata, detak jantung sebelum intubasi dan setelah intubasi, pemasangan pin, insisi kulit dan insisi duramater serta total kebutuhan fentanyl tambahan dicatat. Data yang diperoleh dianalisis dengan program komputer SPSS versi 17 lalu diuji menggunakan uji Kruskal-Wallis atau One-way ANOVA. Batas kemaknaan yang diambil adalah p < 0,05.Hasil: Selama kraniotomi, detak jantung, tekanan darah, tekanan arteri rata-rata secara signifikan lebih tinggi pada pasien tanpa blok scalp terutama pada saat pemasangan pin. Hasil uji statistik menunjukkan perbedaan signifikan, penambahan fentanyl pada pasien dengan blok scalp lebih sedikit dibandingkan tanpa blok scalp, p=0,000 (p<0,05).Simpulan: Blok scalp levobupivakain efektif dalam menurunkan respon hemodinamik terutama pada saat pemasangan pin. Pasien kraniotomi dengan blok scalp membutuhkan penambahan fentanyl lebih sedikit. Differences on Hemodynamic Response with Levobupivacaine Scalp Block in Craniotomy SurgeryAbstractBackground and Objective: Increased hemodynamic response caused by pain can lead to increased cerebral blood flow and intracranial pressure. Scalp block in craniotomy blunts hemodynamic response due to pain and reduce other analgesics addition. This study aims to determine effectiveness of scalp blocks as analgesic in craniotomy.Subject and Method: This study used a double-blind randomized clinical trial in 36 patients with physical status ASA 1-3 who underwent craniotomy and met inclusion criteria. Samples were divided into group I (with scalp block) and group II (without scalp block). Scalp Block was performed right after anesthesia induction. Using levobupivacaine 0.375% 3 ml for each insertion. Blood pressure, mean arterial pressure, heart rate before and after intubation, during pin placement, skin incision and duramater incision and total need for additional fentanyl were recorded. SPSS version 17 was used and data were analysed using Kruskal-Wallis or One-way ANOVA. Statistical significance was accepted at p < 0.05.Result: During craniotomy, heart rate, blood pressure, mean arterial pressure were significantly higher in patients without scalp block especially during pin placement. Statistical test showed significant difference, additional fentanyl in patients with scalp blocks was lesser, p = 0.000 (p <0.05). Conclusion: Levobupivacaine scalp block was effective to blunt hemodynamic response especially during pin placement. Scalp block also decreased additional fentanyl in craniotomy.


2017 ◽  
Vol 26 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Rosario Arcaya Nievera ◽  
Ann Fick ◽  
Hilary K. Harris

Purpose To assess the safety of mobilizing patients receiving low-dose norepinephrine (0.05 μg/kg per min) by examining mean arterial pressure and heart rate before and after activity with parameters set by the physician. Background Norepinephrine is a peripheral vasoconstrictor administered for acute hypotension. During activity, blood flows to the periphery to supply muscles with oxygen, which may oppose the norepinephrine vasoconstriction. The safety of mobilizing patients receiving norepinephrine is unclear. Methods Heart rate, mean arterial pressure, norepinephrine dose, and activity performed were extracted retrospectively from charts of 47 cardiothoracic surgery patients during the first patient transfer to chair or ambulation with norepinephrine infusing. Mean arterial pressure and heart rate were compared before and after physical therapy (paired t tests). Differences among norepinephrine doses and physical activity levels were evaluated (Kruskal-Wallis test). Results Forty-one of the 47 patients (87%) tolerated the activity within safe ranges of vital signs. The change in patients’ mean arterial pressure from before to after activity was not significant (P = .16), but a significant increase in heart rate occurred after activity (P &lt; .001). A Kruskal-Wallis test showed no significant difference in the norepinephrine dose and activity level (χ2 = 6.34, P = .17). No instances of cardiopulmonary or respiratory arrest occurred during any physical therapy sessions. Conclusions Infusion of low-dose norepinephrine should not be considered an automatic reason to keep patients on bed rest.


2020 ◽  
pp. 000348942096282
Author(s):  
Cassie L. Dow ◽  
Anders W. Sideris ◽  
Ravjit Singh ◽  
Mitchell H. Giles ◽  
Catherine Banks ◽  
...  

Objective: This study aimed to test the non-inferiority of topical 1:1000 epinephrine compared to topical 1:10 000 with regard to intraoperative hemodynamic stability, and to determine whether it produced superior visibility conditions. Methods: A single-blinded, prospective, cross-over non-inferiority trial was performed. Topical 1:1000 or topical 1:10 000 was placed in 1 nasal passage. Hemodynamic parameters (heart rate, systolic and diastolic blood pressures, and mean arterial pressure) were measured prior to insertion then every minute for 10 minutes. This was repeated in the contralateral nasal passage of the same patient with the alternate concentration. The surgeon graded the visualization of each passage using the Boezaart Scale. The medians of the greatest absolute change in parameters were compared using a Wilcoxon Rank-Signed test and confidence intervals were calculated using a Hodges-Lehman test. The non-inferiority margin was pre-determined at 10 bpm for heart rate and 10 mmHg for blood pressures. A Wilcoxon Rank-Signed test was used to assess superiority in visualization. Results: Thirty-two patients were enrolled and after exclusions, nineteen were assessed (mean age = 35.63 ± 12.49). Differences in means of greatest absolute change between the 2 concentrations were calculated (heart rate = 2.49 ± 1.20; systolic = −1.51 ± 2.16; diastolic = 2.47 ± 1.47; mean arterial pressure = 0.07 ± 1.83). In analyses of medians, 1:1000 was non-inferior to the 1:10 000. There was a significant difference (–0.58 ± 0.84; P = .012) in visualization in favor of topical 1:1000. Conclusion: Topical 1:1000 epinephrine provides no worse intraoperative hemodynamic stability compared to topical 1:10 000 but affords superior visualization and should be used to optimize surgical conditions.


2014 ◽  
Vol 22 (1) ◽  
pp. 16-20
Author(s):  
SM Abdul Alim ◽  
Md Mozaffer Hossain ◽  
UH Shahera Khatun

Ephedrine is a suitable drug to increase the cardiac output and tissue perfusion, in adequate dose, resulting in faster delivery of drug to muscles. This study was designed to compare the effect of pretreatment with ephedrine 75,100, 150 ?g/kg and saline on intubating conditions and haemodynamics during rapid tracheal intubation using propofol and rocuronium. The aim of this study was to evaluate the effects of different doses of ephedrine, given before induction, on intubating conditions and haemodynamics during rapid tracheal intubation. One hundred and twenty adult patients randomized into one of the four groups- I, II, III and IV were received iv ephedrine 75, 100, 150?g/kg and saline 0.9% (5ml) respectively, one minutes before administering propofol 2.5 mg/kg and rocuronium 0.6 mg/kg. Patients’ mean arterial pressure, heart rate, were recorded before induction (base line), just before intubation, and 1, 3, and 5 minutes after tracheal intubation. Data were analysed between the groups and within the groups using ANOVA test and X2-test. A p-value of <0.05 were considered as significant. Patients characteristics, baseline heart rate, and mean arterial pressure were comparable between the groups. Iutubating conditions were significantly better in group II (p=0.002). Pulse rate at different times were statistically significant (p<0.001) except base line and just before intubation. The mean difference of average mean blood pressure at different times were statistically significant (p<0.05) except baseline. In conclusion, pre-treatment with ephedrine 100 ?gm/kg improved the intubating conditions during rapid tracheal intubation using propofol and rocuronium. DOI: http://dx.doi.org/10.3329/jbsa.v22i1.18096 Journal of BSA, 2009; 22(1): 16-20


2021 ◽  
Author(s):  
Chantelli Iamblaudiot Razafindrazoto ◽  
Lova Dany Ella Razafindrabekoto ◽  
Domoina Harivonjy Hasina Laingonirina ◽  
Raveloson Raveloson ◽  
Anjaramalala Sitraka Rasolonjatovo ◽  
...  

Abstract Background: The betablockers combined with endoscopic variceal band ligation (EVL) is the most effective prevention of variceal rebleeding. The aim of this study is to evaluate the efficacy and safety of carvedilol compared to propranolol as secondary prevention of variceal bleeding in hepatic schistosomiasis. Methods: All patients with portal hypertension due to schistosomiasis presenting for EVL with at least one episode of variceal bleeding were included and randomized into propranolol + EVL and Carvedilol + EVL groups. Results: Sixty-one patients were selected and randomized into the propranolol group (n=30) and carvedilol group (n=31). We noted less recurrence of bleeding in the carvedilol group (n=1) than in the propranolol group (n=3) (3.33% vs 10%; p=0.30). Bleeding recurrence occurred after 30 days in the carvedilol group and after 5, 45 and 90 days in the propranolol group. At 4 months, a significant reduction in mean arterial pressure (-4.13 mmHg; 95%CI: -6.27 and -1.99; p <0.05) and heart rate (-12.13 mmHg; 95%CI: -13.92 and -10.35; p<0.05) was found in the carvedilol group. There was no significant difference between the two groups on the mean difference in mean arterial pressure. A patient in the carvedilol group presented breathing difficulty. No adverse effects have been demonstrated in the propranolol group. Conclusion: Carvedilol is as effective as propranolol in the prevention of variceal rebleeding in hepatic schistosomiasis.


Author(s):  
Vineet K. Choudhary ◽  
Bhawana Rastogi ◽  
V. P. Singh ◽  
Savita Ghalot ◽  
Vijay Dabass ◽  
...  

Background: The McCoy Laryngoscope in comparison to macintosh laryngoscope requires less force for performing laryngoscopy and as a result may alter the associated hemodynamic response. Perfusion index (PI) is a noninvasive numerical value of peripheral perfusion obtained from a pulse oximeter.Methods: A randomized prospective single blind comparative clinical study was conducted on 80 patients of ASA physical status I-II aged between 18 years to 58 years of either sex with body mass index (B.M.I) between 20 and 25 undergoing elective surgeries under general anesthesia. 80 patients were divided into 2 groups: Group A (n=40)- Tracheal Intubation with Macintosh Laryngoscope, Group B (n=40)-Tracheal Intubation with McCoy Laryngoscope. Blood Pressure (systolic blood pressure, diastolic blood pressure, and mean arterial pressure) and heart rate (HR), oxygen saturation (SpO2) via pulse oximeter were monitored.Results: The demographic profile showed no significant difference between the groups. Heart rate, systolic, diastolic and mean arterial pressure had highly significant difference in both groups. Perfusion index was statistically significant immediately post laryngoscopy and intubation till 4 mins. Immediately after laryngoscopy and intubation, the correlation between PI and MAP was statistically significant and it was a negative average to good correlation.Conclusions: The McCoy laryngoscope elicits lesser haemodynamic response to laryngoscopy and tracheal intubation as compared to Macintosh laryngoscope in normotensive patients. Perfusion index can also serve as an additional parameter to assess hemodynamic response since it has good negative correlation with the mean arterial pressure.


1994 ◽  
Vol 76 (6) ◽  
pp. 2561-2569 ◽  
Author(s):  
A. V. Ng ◽  
J. C. Agre ◽  
P. Hanson ◽  
M. S. Harrington ◽  
F. J. Nagle

Experiments were performed to determine whether endurance time, mean arterial pressure, or heart rate was related to either muscle length or external torque production in humans during isometric knee extension. Eight men and nine women performed isometric knee extension to the endurance limit at each of three muscle lengths, determined by knee angles of 40 degrees (0.698 rad, shortest), 60 degrees (1.047 rad, intermediate), and 90 degrees (1.571 rad, longest), and at intensities of 30 and 50% maximal voluntary contraction (MVC). Knee extension forms an ascending-descending length-torque curve, and lengths were chosen to result in different external torques. MVC was greatest at a knee angle of 60 degrees (P < 0.05 vs. 40 degrees, 90 degrees), with no significant difference between 90 degrees and 40 degrees. Endurance time was inversely related to muscle length, independent of torque production, at 30% MVC [40 degrees, 395 +/- 139 (SE); 60 degrees, 237 +/- 60; 90 degrees, 165 +/- 51 s; P < 0.05 vs. each other] and 50% MVC (40 degrees, 176 +/- 64; 60 degrees, 137 +/- 40; 90 degrees, 85 +/- 23 s; P < 0.05 vs. each other). Evidence is presented that endurance is a function of internal muscle force and not resultant external torque. The experimental design allowed the relationship of external torque and cardiovascular responses to be examined independent of exercise intensity. Muscle mass was also controlled in that the same muscle group was involved in all contractions. There were no differences in mean arterial pressure, heart rate, or rating of perceived exertion at any percentage of endurance time under any condition.(ABSTRACT TRUNCATED AT 250 WORDS)


Author(s):  
DK Bharathwaj ◽  
SS Kamath

Background: Increased intraoperative bleeding during functional endoscopic sinus surgery (FESS) affects operative field visibility, which increases both duration of surgery and frequency of complications. Controlled hypotension is an anaesthetic technique in which there is deliberate reduction of systemic blood pressure during anaesthesia. The aim of the study was to compare the efficacy of dexmedetomidine against propofol infusion when used for controlled hypotension during FESS. Methods: A randomised, prospective, and single-blinded study was carried out, which included 80 patients of either sex of ASA grade І & ІІ who underwent elective FESS. Patients were randomly assigned to two groups: Group A (dexmedetomidine), Group B (propofol). Intraoperative mean arterial pressure (MAP), heart rate (HR), surgical grade of bleeding (based on the Fromme– Boezzart scale), and amount of bleeding were recorded. Results: Groups were well matched for their demographic data. There was a statistically significant difference (p < 0.05) between Group A and Group B in heart rate, mean arterial pressure (MAP) and mean total blood loss, with Group A being effectively in controlled on all three parameters during FESS. However, there was no significant difference (p > 0.05) in terms of surgical grade of bleeding between Group A and Group B. Conclusions: Both dexmedetomidine and propofol infusion are efficacious to facilitate controlled hypotension and haemodynamic stability intraoperatively.


2021 ◽  
Vol 8 (24) ◽  
pp. 2045-2051
Author(s):  
Faias Karukappadath Siddique ◽  
Arun Aravind ◽  
Ashabi Mansoortheen

BACKGROUND Maintaining deep plane of anaesthesia to prevent haemodynamic fluctuation and absolute immobility at the same time ensuring early and smooth recovery to prevent bleeding and assessing vocal cord status are the challenges to the anaesthesiologists in thyroid surgeries. Use of volatile anaesthetics with low solubility and low blood gas partition coefficient are used for their haemodynamic stability and faster emergence from anaesthesia in various surgeries under general anaesthesia. we wanted to compare sevoflurane and desflurane in terms of intraoperative haemodynamics, postoperative emergence and recovery characteristics in thyroid surgeries of less than 2 hours duration. METHODS After getting institutional ethical committee approval, 70 patients belonging to American Society of Anaesthesiologists (ASA), physical status I or II undergoing elective thyroid surgery were randomly assigned to two groups to receive either 6 % Desflurane (group D ) or 2 % Sevoflurane (group S) for maintenance of general anaesthesia along with 33 % oxygen with 67 % nitrous oxide. The intraoperative heart rate, mean arterial pressure were recorded at 5 minute intervals and recovery characteristics including times to extubation, first spontaneous motion, response to painful pinch, recall of name, hand grip and PARS score ≥ 9 were recorded in both groups. RESULTS There was no statistically significant difference (P > 0.05) in mean heart rate and mean arterial pressure between group D and S and remained within 20 % of baseline. The time to achieve a PARS ≥ 9 was earlier in the desflurane group and it was statistically significant. CONCLUSIONS Desflurane and Sevoflurane based anaesthesia provides comparable intraoperative haemodynamics whereas post-operative recovery was quicker in patients who received Desflurane compared to Sevoflurane. KEYWORDS Desflurane, Haemodynamics, Recovery, Sevoflurane


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