scholarly journals A Trial of Meptazinol for the Relief of Pain after Abdominal Surgery

1980 ◽  
Vol 8 (4) ◽  
pp. 441-444 ◽  
Author(s):  
John M. Gibbs ◽  
Helen D. Johnson
Keyword(s):  
Single Dose ◽  
Side Effects ◽  
Abdominal Surgery ◽  
Postoperative Analgesia ◽  
Open Study ◽  
Clinical Impression ◽  
Ventilatory Depression

Meptazinol is an opioid drug having mixed agonist-antagonist properties. Chemically it is a hexahydroazepine derivative. It has been used to provide postoperative analgesia1,2 for patients undergoing abdominal surgery but only in single dose studies. The drug is of particular interest in that the clinical impression of minimal ventilatory depression has been confirmed, 3 60 mg meptazinol showing less ventilatory depression than 10 mg of morphine. To test its efficacy in patients undergoing abdominal surgery and to assess the incidence of side effects, an open study was undertaken in 43 patients.

Intrathecal Morphine for Postoperative Analgesia in Children after Selective Dorsal Root Rhizotomy

Neurosurgery ◽  
1991 ◽  
Vol 28 (4) ◽  
pp. 519-522 ◽  
Author(s):  
Mark M. Harris ◽  
Madelyn D. Kahana ◽  
T. S. Park
Keyword(s):  
Single Dose ◽  
Side Effects ◽  
Postoperative Analgesia ◽  
Dorsal Root ◽  
Intrathecal Morphine ◽  
Low Doses ◽  
Selective Dorsal Rhizotomy ◽  
Dorsal Rhizotomy ◽  
High Doses ◽  
Preservative Free

Abstract The authors report their experience with low doses (0.007-0.015 mg/kg);, moderate doses (0.016-0.025 mg/kg);, and high doses (0.026-0.035 mg/kg); of intrathecal morphine for postoperative analgesia after selective dorsal root rhizotomy surgery in 50 children, aged 3 to 12 years. After closure of the dura, a single dose of preservative-free morphine was injected into the subarachnoid space, and patients were assessed for 48 hours for level of comfort and side effects. The three doses of morphine provided equivalent analgesia and similar side effects. The duration of postoperative analgesia ranged from 3 to 48 hours (mean, 12.2 ± 9.5 h);. Common side effects were limited to nausea and vomiting (42%); and mild facial pruritus. No patient experienced late respiratory depression or generalized pruritus. The authors conclude that low doses of intrathecal morphine is as effective as moderate or high doses of morphine for reducing pain in the immediate postoperative period. Intrathecal morphine provides excellent analgesia after selective dorsal rhizotomy.

A Direct Search Procedure to Optimize Combinations of Epidural Bupivacaine, Fentanyl, and Clonidine for Postoperative Analgesia

2000 ◽  
Vol 92 (2) ◽  
pp. 325-325 ◽  
Author(s):  
Michele Curatolo ◽  
Thomas W. Schnider ◽  
Steen Petersen-Felix ◽  
Susanne Weiss ◽  
Christoph Signer ◽  
...  
Keyword(s):  
Side Effects ◽  
Abdominal Surgery ◽  
Epidural Analgesia ◽  
Pain Score ◽  
Postoperative Analgesia ◽  
Optimization Model ◽  
Infusion Rate ◽  
Optimization Procedure ◽  
Direct Search ◽  
Major Abdominal Surgery

Background The authors applied an optimization model (direct search) to find the optimal combination of bupivacaine dose, fentanyl dose, clonidine dose, and infusion rate for continuous postoperative epidural analgesia. Methods One hundred ninety patients undergoing 48-h thoracic epidural analgesia after major abdominal surgery were studied. Combinations of the variables of bupivacaine dose, fentanyl dose, clonidine dose, and infusion rate were investigated to optimize the analgesic effect (monitored by verbal descriptor pain score) under restrictions dictated by the incidence and severity of side effects. Six combinations were empirically chosen and investigated. Then a stepwise optimization model was applied to determine subsequent combinations until no decrease in the pain score after three consecutive steps was obtained. Results Twenty combinations were analyzed. The optimization procedure led to a reduction in the incidence of side effects and in the mean pain scores. The three best combinations of bupivacaine dose (mg/h), fentanyl dose (microg/h), clonidine dose (microg/h), and infusion rate (ml/h) were: 9-21-5-7, 8-30-0-9, and 13-25-0-9, respectively. Conclusions Given the variables investigated, the aforementioned combinations may be the optimal ones to provide postoperative analgesia after major abdominal surgery. Using the direct search method, the enormous number of possible combinations of a therapeutic strategy can be reduced to a small number of potentially useful ones. This is accomplished using a scientific rather than an arbitrary procedure.

Epidural Meperidine after Cesarean Section

1996 ◽  
Vol 85 (2) ◽  
pp. 289-294 ◽  
Author(s):  
Warwick D. Ngan Kee ◽  
Kwok K. Lam ◽  
Phoon P. Chen ◽  
Tony Gin
Keyword(s):  
Single Dose ◽  
Side Effects ◽  
Cesarean Section ◽  
Epidural Analgesia ◽  
Short Duration ◽  
Postoperative Analgesia ◽  
Plasma Concentrations ◽  
Optimum Dose ◽  
Pain Scores ◽  
Effective Analgesia

Background Epidural meperidine is effective for postoperative analgesia, but the optimum dose has not been evaluated. Methods Five doses of epidural meperidine (12.5, 25, 50, 75, and 100 mg) given at the first request for analgesia after cesarean section were compared. Visual analog pain scores, duration of analgesia as defined by time to first patient-controlled epidural analgesia demand, plasma concentrations of meperidine, side effects, and subsequent 24-h consumption of meperidine were evaluated. Results All doses were effective, but patients took longer to become pain-free after 12.5 mg (median 30 min) compared with 25 mg (median 12 min, P = 0.038), and duration of analgesia was shorter after 12.5 mg (median 83 min) compared with 25 mg (median 165 min, P = 0.0005). Increasing dose to more than 25 mg did not improve onset or duration of analgesia. Plasma concentrations of meperidine were less than minimum effective analgesia concentration for all doses except 100 mg. There was more frequent nausea (P = 0.004) and dizziness (P = 0.0002) after 100 mg compared with smaller doses. Conclusions Epidural meperidine provides effective postoperative analgesia, although of relatively short duration. A single dose of 25 mg is superior to 12.5 mg, but there is no benefit from increasing the dose to 50 mg or greater.

Gastric Ulcers Produced by Cisplatin

1981 ◽  
Vol 39 ◽  
pp. 582-583
Author(s):  
S.K. Aggarwal ◽  
J. San Antonio
Keyword(s):  
Electron Microscopy ◽  
Single Dose ◽  
Side Effects ◽  
Antitumor Agent ◽  
Gastric Ulcers ◽  
Enzyme Cytochemistry ◽  
Intestinal Toxicity ◽  
Ovarian Cancers ◽  
Inner Surface

Cisplatin (cis-dichlorodiammineplatinum(II)) a potent antitumor agent is now available for the treatment of testicular and ovarian cancers. It is however, not free from its serious side effects including nephrotoxicity, gastro intestinal toxicity, myelosuppression, and ototoxicity. Here we now report that the drug produces peculiar bloating of the stomach in rats and induces acute ulceration.Wistar-derived rats weighing 200-250 g were administered cisplatin(9 mg/kg) ip as a single dose in 0.15 M NaCl. After 3 days the animals were sacrificed by decapitation. The stomachs were removed, the contents analyzed for pepsin and acidity. The inner surface was examined with a dissecting microscope after a moderate stretching for ulcers. Affected areas were fixed and processed for routine electron microscopy and enzyme cytochemistry.The drug treated animals kept on food and water consistently showed bloating and lesions (Fig. 1) with a frequency of 6-70 ulcers in the rumen section of the stomachs.

scholarly journals Comparing the efficacy and side-effects of PDLASTA® (Pegfilgrastim) with PDGRASTIM® (Filgrastim) in breast cancer patients: a non-inferiority randomized clinical trial

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Safa Najafi ◽  
Maryam Ansari ◽  
Vahid Kaveh ◽  
Shahpar Haghighat
Keyword(s):  
Breast Cancer ◽  
Clinical Trial ◽  
Single Dose ◽  
Side Effects ◽  
Randomized Clinical Trial ◽  
Cancer Patients ◽  
Injection Site Reaction ◽  
Study Groups ◽  
Breast Cancer Patients ◽  
Significant Difference

Abstract Background The objective of this study was to compare the efficacy and side effects of a single dose (Pegfilgrastim or PDL) or repeated six daily injections (Filgrastim or PDG) during chemotherapy courses in breast cancer patients in a non-inferiority clinical trial. Methods In this randomized clinical trial, 80 patients were recruited and allocated randomly to two equal arms. In one group, a single subcutaneous dose of PDL was injected the day after receiving the chemotherapy regimen in each cycle. The second arm received a subcutaneous injection of PDG for six consecutive days in each cycle of treatment. The side effects of GCF treatment and its effect on blood parameters were compared in each cycle and during eight cycles of chemotherapy. Results Hematologic parameters showed no significant differences in any of the treatment courses between the two study groups. The comparison of WBC (p = 0.527), Hgb (p = 0.075), Platelet (p = 0.819), Neutrophil (p = 0.575), Lymphocyte (p = 705) and ANC (p = 0.675) changes during the eight courses of treatment also revealed no statistically significant difference between the two study groups. Side effects including headache, injection site reaction and muscle pain had a lower frequency in patients receiving PDL drugs. Conclusion It seems that PDL is non-inferior in efficacy and also less toxic than PDG. Since PDL can be administered in a single dose and is also less costly, it can be regarded as a cost-effective drug for the treatment of chemotherapy-induced neutropenia. Trial registration IRCT20190504043465N1, May 2019.

The Effect of a Single Dose of Quazepam (Sch-16134) on the Sleep of Chronic Insomniacs

1979 ◽  
Vol 7 (6) ◽  
pp. 583-587 ◽  
Author(s):  
Thomas Roth ◽  
Elizabeth I Tietz ◽  
Milton Kramer ◽  
Mark Kaffeman
Keyword(s):  
Single Dose ◽  
Side Effects ◽  
Chronic Administration ◽  
Sleep Efficiency ◽  
Objective Measures ◽  
Subjective Measures ◽  
Sleep Maintenance ◽  
Eeg Changes ◽  
Different Doses ◽  
Polysomnographic Recording

The present study evaluated the efficacy of 25 mg of quazepam, a new benzodiazepine hypnotic, in a population of chronic insomniacs. The results indicate that a single dose (25 mg) administered for one night was efficacious when measured both objectively by polysomnographic recording and subjectively by questionnaire with no reported side-effects. The change in the objective measures paralleled the direction of change in subjective measures. Sleep efficiency and sleep maintenance were improved without EEG changes in Stages 2, 3-4, and REM. Further study is needed to evaluate the effects of chronic administration of different doses of quazepam in chronic insomniacs.

Prophylactic intravenous gentamicin with sedation-free cystoscopic injection of BoNT-A: No demonstrable adverse extravesical neuromuscular effects in a pilot safety study of 220 idiopathic overactive bladder patients

2021 ◽  
pp. 205141582110166
Author(s):  
Timothy P Napier-Hemy ◽  
Oladapo Feyisetan ◽  
Heather Stewart ◽  
Alaa Chamsin ◽  
Michael S Floyd ◽  
...  
Keyword(s):  
Single Dose ◽  
Side Effects ◽  
Overactive Bladder ◽  
Botulinum Toxin Type A ◽  
Concomitant Administration ◽  
Botulinum Toxin Type ◽  
Overactive Bladder Syndrome ◽  
Safety Study ◽  
Level Of Evidence ◽  
Intravesical Injection

Objectives: To determine whether administration of single dose prophylactic intravenous gentamicin prior to intravesical injection of botulinum toxin type A (BoNT-A) is associated with adverse extravesical neuromuscular effects in idiopathic overactive bladder syndrome. Patients and methods: A retrospective analysis of 220 consecutive idiopathic overactive bladder patients following sedation-free flexible cystoscopic injection of intravesical BoNT-A. All patients received a single dose of intravenous gentamicin (160 mg) followed by 100-200 IU of BoNT-A. They were followed up at intervals to determine whether they had experienced any adverse extravesical neuromuscular side effects. Results: None of our patients developed adverse extravesical neuromuscular side effects from intravesical botulinum injections with concomitant administration of intravenous gentamicin. Conclusion: Single dose intravenous gentamicin is safe to use as a prophylaxis for intravesical BoNT-A injections of 200 IU or below in idiopathic overactive bladder patients. Level of evidence: Not applicable.

scholarly journals Neutralizing Antibodies Titers and Side Effects in Response to BNT162b2 Vaccine in Healthcare Workers with and without Prior SARS-CoV-2 Infection

Vaccines ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 742
Author(s):  
José Javier Morales-Núñez ◽  
José Francisco Muñoz-Valle ◽  
Carlos Meza-López ◽  
Lin-Fa Wang ◽  
Andrea Carolina Machado Sulbarán ◽  
...  
Keyword(s):  
Single Dose ◽  
Side Effects ◽  
Adverse Effects ◽  
Antibody Production ◽  
Neutralizing Antibodies ◽  
Healthcare Workers ◽  
Vaccination Program ◽  
Expected Result ◽  
Neutralizing Capacity ◽  
The Usa

The main expected result of a vaccine against viruses is the ability to produce neutralizing antibodies. Currently, several vaccines against SARS-CoV-2 are being applied to prevent mortal complications, being Pfizer-BioNTech (BNT162b2) one of the first to be authorized in the USA and Mexico (11 December 2020). This study evaluated the efficacy of this vaccine on antibody production with neutralizing capacity and its side effects in healthcare workers with and without prior SARS-CoV-2 infection and in a group of unvaccinated individuals with prior COVID-19. The main findings are the production of 100% neutralizing antibodies in both groups after the second dose, well-tolerated adverse effects, the possible presence of immunosenescence, and finally, we support that a single dose of this vaccine in individuals with prior COVID-19 would be sufficient to achieve an immunization comparable to people without prior COVID-19 with a complete vaccination program (2 doses).

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