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Tascón Padrón L, Emrich NLA, Strizek B, Schleußner E, Dreiling J, Komann M, Schuster M, Werdehausen R, Meissner W, Jiménez Cruz J. Quality of analgesic care in labor: A cross-sectional study of the first national register-based benchmarking system. Int J Gynaecol Obstet 2024. [PMID: 38528775 DOI: 10.1002/ijgo.15489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/01/2024] [Accepted: 03/10/2024] [Indexed: 03/27/2024]
Abstract
OBJECTIVE Unlike other types of acute pain, labor pain is considered physiological. Due to the heterogeneous management during labor, there is a lack of intention to define quality of care of peripartal analgesia. This study presents the first results of the national register for this evaluation. METHODS This prospective cross-sectional study, conducted in five different German level-three hospitals, included women after vaginal childbirth between January 2020 and January 2022. A validated questionnaire was completed 24 h postpartum, including information about labor pain, satisfaction, and expectations regarding analgesia. Data were centrally recorded with obstetric records using the database of the QUIPS (Quality Improvement in Postoperative Pain Management) Project. RESULTS A total of 514 women were included. On an 11-point Numerical Rating Scale, pain intensity during labor was severe (8.68 ± 1.8) while postpartal pain was 3.9 (±2.1). The second stage of labor was considered the most painful period. Only 62.6% of the parturients obtained pharmacological support, with epidural being the most effective (reduction of 3.8 ± 2.8 points). Only epidural (odds ratio [OR] 0.22) and inhalation of nitrous oxide (OR 0.33) were protective for severe pain. In benchmarking, a relation between satisfaction, pain intensity, and the use of epidural was found; 40.7% of the women wished they had received more analgesic support during labor. CONCLUSION This study highlights deficiencies in analgesic management in high-level perinatal centers, with more than 40% of parturients considering actual practices as insufficient and wishing they had received more analgesic support, despite the availability of analgesic options. Using patient-reported outcomes can guarantee qualitative tailored analgesic care in women.
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Affiliation(s)
- L Tascón Padrón
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
| | - N L A Emrich
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
| | - B Strizek
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
| | - E Schleußner
- Department of Obstetrics and Prenatal Medicine, University Hospital of Jena, Jena, Germany
| | - J Dreiling
- Department for Anesthesiology and Intensive Care Medicine, University Hospital of Jena, Jena, Germany
- Department of Palliative Care, University Hospital of Jena, Jena, Germany
| | - M Komann
- Department for Anesthesiology and Intensive Care Medicine, University Hospital of Jena, Jena, Germany
- Department of Palliative Care, University Hospital of Jena, Jena, Germany
| | - M Schuster
- Department for Anesthesiology and Intensive Care Medicine, University Hospital of Mainz, Mainz, Germany
| | - R Werdehausen
- Department for Anesthesiology and Intensive Care Medicine, University Hospital of Leipzig, Leipzig, Germany
| | - W Meissner
- Department for Anesthesiology and Intensive Care Medicine, University Hospital of Jena, Jena, Germany
- Department of Palliative Care, University Hospital of Jena, Jena, Germany
| | - J Jiménez Cruz
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
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Hermanns H, Werdehausen R, Hollmann MW, Stevens MF. Assessment of skin temperature during regional anaesthesia-What the anaesthesiologist should know. Acta Anaesthesiol Scand 2018; 62:1280-1289. [PMID: 29938773 DOI: 10.1111/aas.13176] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 05/16/2018] [Accepted: 05/16/2018] [Indexed: 01/22/2023]
Abstract
Body temperature homeostasis is accurately regulated by complex feedback-driven neuronal mechanisms, which involve a multitude of thermoregulatory pathways. Thus, core temperature is constantly maintained within a narrow range. As one of the most effective regulatory systems skin temperature is dependent on skin blood flow. Skin blood flow in turn is highly dependent on sympathetic activity. Regional anaesthesia leads to blockade not only of somatosensory and motor nerve fibres but also of sympathetic fibres. As a consequence, vasoconstrictor tonic activity is abrogated and a vasodilation leads to an increase in skin blood flow and temperature. The aim of this review was to summarize the general physiology of thermoregulation and skin temperature as well as the alterations during regional anaesthesia. The main focus was the usefulness of measuring skin temperature as an indicator of regional anaesthesia success. According to the available literature, assessment of skin temperature can indeed serve to predict success of regional anaesthesia. Hence, it is important to realize that relevant and reliable temperature increase is only seen in the most distal body parts, ie fingers and toes. More proximally, temperature changes are frequently small and inconsistent, which means that assessment of block levels is not possible by temperature measurement. Furthermore, relevant skin temperature increases will only be observed in patients, which are initially vasoconstricted. In conclusion, measurement of skin temperature represents a reliable and feasible diagnostic tool to assess and predict the success or failure of regional anaesthesia procedures, especially in patients in which sensory testing is impossible.
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Affiliation(s)
- H. Hermanns
- Department of Anaesthesiology; Academic Medical Center; Amsterdam The Netherlands
| | - R. Werdehausen
- Department of Anaesthesiology and Intensive Care Therapy; Medical Faculty; University of Leipzig; Leipzig Germany
| | - M. W. Hollmann
- Department of Anaesthesiology; Academic Medical Center; Amsterdam The Netherlands
| | - M. F. Stevens
- Department of Anaesthesiology; Academic Medical Center; Amsterdam The Netherlands
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Abstract
Besides the well-known analgesic effects of amide-linked local anesthetics exerted via the inhibition of the voltage-gated sodium channel, these substances also possess a certain number of properties, which bear the potential to positively influence the outcome after surgery. The results of several experimental as well as clinical studies suggest the possibility of an enhanced recovery after surgery, reduction in the incidence of chronic pain, preservation of endothelial barrier function during acute lung injury and the prevention of metastasis of solid tumors by systemic effects of local anesthetic administration. Mechanistic studies were able to identify several "new targets", such as the inhibition of spinal glycine transporters or of inflammatory signaling as induced by tumor necrosis factor alpha. Further elucidation of these mechanistic pathways as well as the translation of these promising experimental results into clinical practice is a crucial component of research activities in the field of anesthesia.
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Affiliation(s)
- T Piegeler
- Klinik und Poliklinik für Anästhesiologie und Intensivtherapie, Universitätsklinikum Leipzig (AöR), Liebigstraße 20, 04103, Leipzig, Deutschland.
| | - R Werdehausen
- Klinik und Poliklinik für Anästhesiologie und Intensivtherapie, Universitätsklinikum Leipzig (AöR), Liebigstraße 20, 04103, Leipzig, Deutschland
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Cregg R, Cox JJ, Bennett DLH, Wood JN, Werdehausen R. Mexiletine as a treatment for primary erythromelalgia: normalization of biophysical properties of mutant L858F NaV 1.7 sodium channels. Br J Pharmacol 2014; 171:4455-63. [PMID: 24866741 PMCID: PMC4209151 DOI: 10.1111/bph.12788] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 05/10/2014] [Accepted: 05/17/2014] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND AND PURPOSE The non-selective sodium channel inhibitor mexiletine has been found to be effective in several animal models of chronic pain and has become popular in the clinical setting as an orally available alternative to lidocaine. It remains unclear why patients with monogenic pain disorders secondary to gain-of-function SCN9a mutations benefit from a low systemic concentration of mexiletine, which does not usually induce adverse neurological side effects. The aim of this study was, therefore, to investigate the biophysical effects of mexiletine on the L858F primary erythromelalgia NaV 1.7 mutation in vitro. EXPERIMENTAL APPROACH Human wild-type and L858F-mutated NaV 1.7 channels were expressed in HEK293A cells. Whole-cell currents were recorded by voltage-clamp techniques to characterize the effect of mexiletine on channel gating properties. KEY RESULTS While the concentration-dependent tonic block of peak currents by mexiletine was similar in wild-type and L858F channels, phasic block was more pronounced in cells transfected with the L858F mutation. Moreover, mexiletine substantially shifted the pathologically-hyperpolarized voltage-dependence of steady-state activation in L858F-mutated channels towards wild-type values and the voltage-dependence of steady-state fast inactivation was shifted to more hyperpolarized potentials, leading to an overall reduction in window currents. CONCLUSION AND IMPLICATIONS Mexiletine has a normalizing effect on the pathological gating properties of the L858F gain-of-function mutation in NaV 1.7, which, in part, might explain the beneficial effects of systemic treatment with mexiletine in patients with gain-of-function sodium channel disorders.
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Affiliation(s)
- R Cregg
- Molecular Nociception Group, Wolfson Institute for Biomedical Research, UCL, London, UK; UCL Centre for Anaesthesia, Critical Care and Pain Medicine, London, UK
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Neukirchen M, Hipp J, Schaefer M, Brandenburger T, Bauer I, Winterhalter M, Kienbaum P, Werdehausen R. Cardiovascular stability and unchanged muscle sympathetic activity during xenon anaesthesia: role of norepinephrine uptake inhibition. Br J Anaesth 2012; 109:887-96. [DOI: 10.1093/bja/aes303] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Braun S, Gaza N, Werdehausen R, Hermanns H, Bauer I, Durieux ME, Hollmann MW, Stevens MF. Ketamine induces apoptosis via the mitochondrial pathway in human lymphocytes and neuronal cells. Br J Anaesth 2010; 105:347-54. [PMID: 20659914 DOI: 10.1093/bja/aeq169] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Ketamine has been shown to have neurotoxic properties, when administered neuraxially. The mechanism of this local toxicity is still unknown. Therefore, we investigated the mechanism of cytotoxicity in different human cell lines in vitro. METHODS We incubated the following cell types for 24 h with increasing concentrations of S(+)-ketamine and racemic ketamine: (i) human Jurkat T-lymphoma cells overexpressing the antiapoptotic B-cell lymphoma 2 protein, (ii) cells deficient of caspase-9, caspase-8, or Fas-associated protein with death domain and parental cells, and (iii) neuroblastoma cells (SHEP). N-Methyl-d-aspartate (NMDA) receptors and caspase-3 cleavage were identified by immunoblotting. Cell viability and apoptotic cell death were evaluated flowcytometrically by Annexin V and 7-aminoactinomycin D double staining. Mitochondrial metabolic activity and caspase-3 activation were measured. RESULTS Ketamine, in a concentration-dependent manner, induced apoptosis in lymphocytes and neuroblastoma cell lines. Cell lines with alterations of the mitochondrial pathway of apoptosis were protected against ketamine-induced apoptosis, whereas alterations of the death receptor pathway did not reduce apoptosis. S(+)-Ketamine and racemic ketamine induced the same percentage of cell death in Jurkat cells, whereas in neuroblastoma cells, S(+)-ketamine was slightly less toxic. CONCLUSIONS Ketamine at millimolar concentrations induces apoptosis via the mitochondrial pathway, independent of death receptor signalling. At higher concentrations necrosis is the predominant mechanism. Less toxicity of S(+)-ketamine was observed in neuroblastoma cells, but this difference was minor and therefore unlikely to be mediated via the NMDA receptor.
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Affiliation(s)
- S Braun
- Department of Anesthesiology, University of Düsseldorf, Germany
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Werdehausen R, Fazeli S, Braun S, Hermanns H, Essmann F, Hollmann MW, Bauer I, Stevens MF. Apoptosis induction by different local anaesthetics in a neuroblastoma cell line. Br J Anaesth 2009; 103:711-8. [PMID: 19700777 DOI: 10.1093/bja/aep236] [Citation(s) in RCA: 148] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- R Werdehausen
- Department of Anaesthesiology, University of Düsseldorf, Düsseldorf, Germany
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Braun S, Werdehausen R, Bothur T, Hermanns H, Lipfert P, Stevens MF. Incidental recognition of an aspirated tablet in an oesophagectomized patient. Br J Anaesth 2009; 103:138-9. [PMID: 19546209 DOI: 10.1093/bja/aep157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Hermanns H, Muth-Selbach U, Lipfert P, Braun S, Werdehausen R, Bauer I. Loss of spinal glycinergic neurons is not necessary for development of neuropathic pain in transgenic mice expressing enhanced green fluorescent protein in glycinergic neurons. Neuroscience 2009; 159:1148-53. [DOI: 10.1016/j.neuroscience.2009.01.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2008] [Revised: 01/14/2009] [Accepted: 01/16/2009] [Indexed: 11/26/2022]
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Werdehausen R, Braun S, Hermanns H, Stevens MF. 799. Effects of Clinically Used Adjuvants for Regional Anaesthesia on the Neurotoxicity Oflidocaine in Vitro. Reg Anesth Pain Med 2008. [DOI: 10.1136/rapm-00115550-200809001-00044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
BACKGROUND Neuraxial anaesthesia in adults decreases the dose of i.v. or inhalational anaesthetic needed to reach a desired level of sedation. Furthermore, spinal anaesthesia alone has a sedative effect. The mechanism behind this phenomenon is presumed to be decreased afferent stimulation of the reticular activating system after sympatholysis. We hypothesized that this mechanism is equally active in infants undergoing spinal anaesthesia. METHODS In total, 20 unpremedicated former preterm infants underwent surgery under spinal anaesthesia with hyperbaric bupivacaine 0.5% 1 mg kg(-1) with epinephrine 10 microg kg(-1). No additional sedatives or anaesthetics were administered. Sedation was evaluated using the bispectral index (BIS) score and the 95% spectral edge frequency (SEF(95)). RESULTS After spinal anaesthesia, mean (SD) BIS began to decrease significantly from baseline 97.0 (1.1) to 83.9 (14.4) after 15 min (P=0.006). BIS decreased further, reaching the lowest values after 30 min [62.2 (14.0); P<0.00001]. Mean (SD) SEF(95) declined from baseline 26.1 (1.8) Hz to 24.3 (3.1) after 5 min (P=0.02) and further to 9.9 (3.8) after 30 min (P<0.00001). Mean arterial pressure also decreased significantly from 66.5 (4.7) mm Hg within 10 min to 56.1 (5.6) after spinal anaesthesia (P=0.0002), while heart rate remained stable. CONCLUSIONS These results suggest that sedation after spinal anaesthesia in infants is at least as pronounced as in adults. The sedative effect of spinal anaesthesia should be kept in mind when additional sedatives are administered, especially in former preterm infants.
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Affiliation(s)
- H Hermanns
- Department of Anaesthesiology, University Hospital Düsseldorf Germany
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