Background: Preemptive analgesics are commonly used to increase analgesic efficacy and patient satisfaction. The aim of this study was to evaluate the preemptive analgesic effect of intramuscular diclofenac on minimal effective dose spinal anesthesia for perianal surgeries.
Materials And Methods: Fifty patients ASA I&II were divided randomly into two groups, control group (GC N = 25) and Diclofenac group (GD N = 25), both groups received saddle block with 5% hyperbaric bupivacaine 0.5 mL (2.5 mg). Thirty minutes before the saddle block, patients in GD received 75 mg (3 mL) diclofenac intramuscularly, whereas patients in GC received 3 mL saline intramuscularly. The differences in the time for the first analgesic request, postoperative analgesic consumption as well as, visual analog scale, were our primary outcomes.
Results: Fifty patients (25 in each group) undergoing perianal surgery completed the study successfully. The time to the first request of analgesia was significantly longer in GD 511.8 (108.07) min. compared to the GC 179.56 (49.24) min with = 0.00001, as well as the total consumption of rescue analgesic (tramadol hydrochloride) was significantly less in GD 66 (23.8) mg compared to 104 (28.5) mg in the GC with = 0.00001.
Conclusion: Preemptive intramuscular diclofenac sodium with minimal dose bupivacaine saddle block significantly minimized the postoperative analgesic consumption and delayed the first analgesia request after perianal surgery.
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http://dx.doi.org/10.4103/sja.sja_722_21 | DOI Listing |
Palliat Med Rep
December 2024
Department of Palliative Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
Background: Because of the limitations of pharmacological therapy, nonpharmacological therapies including intervention procedures are also important for quality of cancer pain management.
Objective: To clarify the availability of, number performed, barriers to performing, and educational practices of four interventional procedures (celiac plexus neurolysis/splanchnic nerve neurolysis, phenol saddle block, epidural analgesia, and intrathecal analgesia) in designated cancer hospitals.
Design: Cross-sectional survey.
J Chem Phys
December 2024
Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
Complex-Langevin field-theoretic simulations (CL-FTSs) provide an approximation-free method of calculating fluctuation corrections to the self-consistent field theory (SCFT) of block copolymer melts. However, the complex fields are prone to the formation of hot spots, which causes the method to fail. This problem has been attributed to an invariance under complex translations, which allows the system to drift away from the real-valued saddle-point of SCFT.
View Article and Find Full Text PDFChaos
December 2024
School of Mathematics and Statistics, Northwestern Polytechnical University, Xi'an 710129, China.
J Chem Phys
November 2024
Bauman Moscow State Technical University, 2nd Baumanskaya Street 5, 105005 Moscow, Russia.
Tunable self-assembly driven by external electric or magnetic fields is of significant interest in modern soft matter physics. While extensively studied in two-dimensional systems, it remains insufficiently explored in three-dimensional systems. In this study, we investigated the formation of vertical strings from an initial monolayer system of particles deposited on a horizontal substrate under the influence of an external magnetic field using experiments, computer simulations, and theoretical frameworks.
View Article and Find Full Text PDFeNeuro
October 2024
School of Systems Science, Beijing Normal University, Beijing 100875, China
Experimental evidence showed that an increase in intracellular chloride concentration [Formula: see text] caused by gamma-aminobutyric acid (GABA) input can promote epileptic firing activity, but the actual mechanisms remain elusive. Here in this theoretical work, we show that influx of chloride and concomitant bicarbonate ion [Formula: see text] efflux upon GABA receptor activation can induce epileptic firing activity by transition of GABA from inhibition to excitation. We analyzed the intrinsic property of neuron firing states as a function of [Formula: see text] We found that as [Formula: see text] increases, the system exhibits a saddle-node bifurcation, above which the neuron exhibits a spectrum of intensive firing, periodic bursting interrupted by depolarization block (DB) state, and eventually a stable DB through a Hopf bifurcation.
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