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1.
Am J Occup Ther ; 78(3)2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38748627

RESUMO

IMPORTANCE: With the increasing amount of substance use-related health conditions in the United States, it is important for rehabilitation science professionals to receive screening and prevention training. OBJECTIVE: To describe and examine the preliminary effectiveness of a novel educational program, Screening, Brief Intervention, and Referral to Treatment Plus (SBIRT-Plus), that combines traditional SBIRT training with new modules for cannabis, stimulant, and opioid use. DESIGN: Prospective, cohort design. SETTING: Academic institution. PARTICIPANTS: One hundred eighty-one rehabilitation science graduate students. INTERVENTION: SBIRT-Plus curriculum. OUTCOMES AND MEASURES: Outcomes included satisfaction with training, perception of interprofessional training, attitudes, knowledge, and stigma, as assessed with the Readiness for Interprofessional Learning Scale, Alcohol and Alcohol Problems Perception Questionnaire, Drug and Drug Problems Perception Questionnaire, Knowledge Screening Scale, and two stigma instruments. RESULTS: Most students (>80%) expressed satisfaction with their training, would recommend the training to a colleague, and believed that the training would influence and change the way they practiced with patients at risk for substance use disorders. Students' attitudes and knowledge increased from pre- to post-training, and stigma perceptions were significantly reduced. CONCLUSIONS AND RELEVANCE: SBIRT-Plus is an evidence-based interprofessional training that is feasible to implement in graduate-level education programs. Integrating SBIRT-Plus into professional graduate programs may be an optimal and low-cost model for training rehabilitation health care professionals. Plain-Language Summary: Screening, Brief Intervention, and Referral to Treatment Plus (SBIRT-Plus) is an evidence-based interprofessional training that can be easily adopted in curricula to train professional students about the importance of screening for substance use disorders.


Assuntos
Encaminhamento e Consulta , Transtornos Relacionados ao Uso de Substâncias , Humanos , Transtornos Relacionados ao Uso de Substâncias/reabilitação , Masculino , Feminino , Estudos Prospectivos , Currículo , Terapia Ocupacional/educação , Programas de Rastreamento , Adulto , Educação Interprofissional , Atitude do Pessoal de Saúde
2.
J Am Assoc Nurse Pract ; 35(9): 568-574, 2023 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-37192411

RESUMO

ABSTRACT: Screening, brief intervention, and referral to treatment (SBIRT) is a public health approach to early intervention for substance use through universal screening. Utilization of SBIRT was taught in an interprofessional setting to nurse practitioner, nurse anesthetist, and dental hygiene students through integrated educational grant projects. A qualitative analysis was done across 10 SBIRT data sets collected over 4 years. The researchers used a nominal group consensus method to review the data, and six themes were identified. Results showed that students desired more training on motivational interviewing techniques. Furthermore, students identified that to effectively work interprofessionally, students must be exposed to such collaboration throughout their professional educational programs.


Assuntos
Prática Avançada de Enfermagem , Estudantes de Enfermagem , Transtornos Relacionados ao Uso de Substâncias , Humanos , Intervenção em Crise , Currículo , Encaminhamento e Consulta , Transtornos Relacionados ao Uso de Substâncias/diagnóstico , Programas de Rastreamento/métodos
3.
Nurs Open ; 10(5): 3094-3103, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36539384

RESUMO

AIMS: To explore haematological nurses' experiences about the palliative care trajectories of patients with life-threatening haematological malignancies. DESIGN: A qualitative study with a descriptive and explorative design. METHODS: Data were collected through 12 individual semi-structured interviews of nurses who work with patients with haematological malignancies from four hospitals in Norway. The data were analysed using systematic text condensation. The study was reported according to the Consolidated Criteria for Reporting Qualitative Research checklist. RESULTS: Three categories emerged from the data analysis: focus on a cure delays integration of palliative care, dialogue with patients facilitates palliative care and the need for enhanced interdisciplinary understanding. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution since nurses' experiences were explored.


Assuntos
Neoplasias Hematológicas , Enfermagem de Cuidados Paliativos na Terminalidade da Vida , Enfermeiras e Enfermeiros , Humanos , Cuidados Paliativos , Pesquisa Qualitativa
4.
World Neurosurg ; 171: 1-4, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36563849

RESUMO

BACKGROUND: Robotic-assisted stereotactic electroencephalography (sEEG) electrode placement is increasingly common at specialized epilepsy centers. High accuracy and low complication rates are essential to realizing the benefits of sEEG surgery. The aim of this study was to describe for the first time in the literature a method for a stereotactic registration checkpoint to verify intraoperative accuracy during robotic-assisted sEEG and to report our institutional experience with this technique. METHODS: All cases performed with this technique since the adoption of robotic-assisted sEEG at our institution were retrospectively reviewed. RESULTS: In 4 of 111 consecutive sEEG operations, use of the checkpoint detected an intraoperative registration error, which was addressed before completion of sEEG electrode placement. CONCLUSIONS: The use of a registration checkpoint in robotic-assisted sEEG surgery is a simple technique that can prevent electrode misplacement and improve the safety profile of this procedure.


Assuntos
Robótica , Técnicas Estereotáxicas , Humanos , Estudos Retrospectivos , Eletrodos Implantados , Eletroencefalografia/métodos
5.
JAMA Surg ; 157(8): 676-683, 2022 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-35675065

RESUMO

Importance: Older adults (age ≥65 years) are at risk for high rates of delirium and poor outcomes; however, how to improve outcomes is still being explored. Objective: To assess whether implementation of a geriatric trauma clinical pathway was associated with reduced rates of delirium in older adults with traumatic injury. Design, Setting, and Participants: A retrospective case-control study of electronic health records of patients aged 65 years or older with traumatic injury from 2018 to 2020 was conducted at a single level I trauma center. Eligible patients were age 65 years or older admitted to the trauma service and who did not undergo an operation. Intervention: The implementation of a clinical pathway based on geriatric best practices, which included order sets, guidelines, automated consultations, and escalation pathways executed by a multidisciplinary team. Main Outcomes and Measures: The primary outcome was delirium. The secondary outcome was hospital length of stay. Process measures for pathway compliance were also assessed. Results: Of the 859 eligible patients, 712 patients were included in the analysis (442 [62.1%] in the baseline group; 270 [37.9%] in the postimplementation group; mean [SD] age: 81.4 [9.1] years; 394 [55.3%] were female). The mechanism of injury was not different between groups, with 247 in the baseline group (55.9%) and 162 in the postimplementation group (60.0%) (P = .43) experiencing a fall. Injuries were minor or moderate in both groups (261 in baseline group [59.0%] and 168 in postimplementation group [62.2%]; P = .87). The adjusted odds ratio for delirium in the postimplementation cohort was 0.54 (95% CI, 0.37-0.80; P < .001). Goals of care documentation improved significantly in the postimplementation cohort vs the baseline cohort with regard to documented goals of care notes (53.7% in the postimplementation cohort [145 of 270] vs 16.7% in the baseline cohort [74 of 442]; P < .001) and a shortened time to discussion from presenting to the emergency department (36 hours in the postimplementation cohort vs 50 hours in the baseline cohort; P = .03). Conclusions and Relevance: In this study, implementation of a multidisciplinary clinical pathway for injured older adults at a single level I trauma center was associated with improved care and clinical outcomes. Interventions such as these may have utility in this vulnerable population, and findings should be confirmed across multiple centers.


Assuntos
Procedimentos Clínicos , Delírio , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Delírio/epidemiologia , Delírio/etiologia , Feminino , Humanos , Masculino , Estudos Retrospectivos , Centros de Traumatologia
6.
AANA J ; 90(3): 189-196, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35604861

RESUMO

A second victim is a healthcare provider who has been involved in a critical event. A critical event is a clinical situation in which an unforeseen clinical outcome occurs, or the clinical deterioration of the patient takes place for many different reasons. The patient and his/her family are the first victims. The healthcare provider(s) involved in the event are second victims. After such an event, the healthcare provider may experience a constellation of negative emotions, such as guilt, sadness, depression, somatic symptoms, hypervigilance, and fear. Most second victims require support to cope with the adverse clinical situation. Many of the studies addressed in this integrative review, revealed that having a trusted colleague or staff member with whom to discuss the critical event is therapeutic. Some organizations have developed programs to support second victims in which specially trained staff members are deployed to discuss critical events with those involved, if the participant(s) desire the support. Other clinical facilities do not have established support programs; however, healthcare providers have expressed desire to discuss the critical event with supportive colleagues.


Assuntos
Adaptação Psicológica , Pessoal de Saúde , Atenção à Saúde , Feminino , Pessoal de Saúde/psicologia , Humanos , Masculino , Erros Médicos/psicologia
7.
Appl Nurs Res ; 62: 151506, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34815002

RESUMO

AIM: To develop an evidence-based operational definition for Prolonged Postoperative Opioid Use (PPOU). BACKGROUND: In the United States, opioids are a mainstay of postoperative pain management, and are prescribed to over 90% of patients following surgery. Recent literature has highlighted the risk for prolonged postoperative opioid use (PPOU) after many surgical procedures. However, reported rates of PPOU vary greatly across studies, due in part to inconsistent operational definitions. Recent literature identified 29 distinct definitions for PPOU, which resulted in incidence ranging from 0.01% to 14.7% when applied to the same cohort of opioid naïve patients. METHODS: We followed the eight-step method described by Walker & Avant, using an iterative literature search process with the following databases: PubMed, CINAHL, Google Scholar. English-language peer-reviewed publications through August 2020 were included in the analysis. RESULTS: The four defining attributes of PPOU are (1) use of opioids greater than 90 days following surgery, (2) treatment of postoperative (non-cancer) pain, (3) in opioid-naïve patients, (4) with legal prescription use. We identified four antecedents and four consequences to PPOU. CONCLUSION: The definition of PPOU in current literature varies greatly and has had significant impact on the interpretation and reliability of research findings. We propose the following working definition: PPOU is the legal prescription use of any opioid for greater than 90 days following surgery, for the purposes of treating post-operative pain, by a patient who opioid naïve in the year prior to surgery.


Assuntos
Analgésicos Opioides , Transtornos Relacionados ao Uso de Opioides , Analgésicos Opioides/uso terapêutico , Humanos , Transtornos Relacionados ao Uso de Opioides/tratamento farmacológico , Dor Pós-Operatória/tratamento farmacológico , Período Pós-Operatório , Reprodutibilidade dos Testes , Estados Unidos
8.
Stereotact Funct Neurosurg ; 99(5): 369-376, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33744897

RESUMO

BACKGROUND: Optical neuronavigation has been established as a reliable and effective adjunct to many neurosurgical procedures. Operations such as asleep deep brain stimulation (aDBS) benefit from the potential increase in accuracy that these systems offer. Built into these technologies is a degree of tolerated error that may exceed the presumed accuracy resulting in suboptimal outcomes. OBJECTIVE: The objective of this study was to identify an underlying source of error in neuronavigation and determine strategies to maximize accuracy. METHODS: A Medtronic Stealth system (Stealth Station 7 hardware, S8 software, version 3.1.1) was used to simulate an aDBS procedure with the Medtronic Nexframe system. Multiple configurations and orientations of the Nexframe-Nexprobe system components were examined to determine potential sources of, and to quantify navigational error, in the optical navigation system. Virtual entry point and target variations were recorded and analyzed. Finally, off-plan error was recorded with the AxiEM system and visual observation on a phantom head. RESULTS: The most significant source of error was found to be the orientation of the reference marker plate configurations to the camera system, with the presentation of the markers perpendicular to the camera line of site being the most accurate position. Entry point errors ranged between 0.134 ± 0.048 and 1.271 ± 0.0986 mm in a complex, reproducible pattern dependent on the orientation of the Nexprobe reference plate. Target errors ranged between 0.311 ± 0.094 and 2.159 ± 0.190 mm with a similarly complex, repeatable pattern. Representative configurations were tested for physical error at target with errors ranging from 1.2 mm to 1.4 mm. Throughout data acquisition, no orientation was indicated as outside the acceptable tolerance by the Stealth software. CONCLUSIONS: Use of optical neuronavigation is expected to increase in frequency and variety of indications. Successful implementation of this technology depends on understanding the tolerances built into the system. In situations that depend on extremely high precision, surgeons should familiarize themselves with potential sources of error so that systems may be optimized beyond the manufacturer's built-in tolerances. We recommend that surgeons align the navigation reference plate and any optical instrument's reference plate spheres in the plane perpendicular to the line of site of the camera to maximize accuracy.


Assuntos
Cirurgia Assistida por Computador , Humanos , Imageamento Tridimensional , Neuronavegação , Procedimentos Neurocirúrgicos , Imagens de Fantasmas
9.
Adv Emerg Nurs J ; 42(3): 225-230, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32739952

RESUMO

Alcohol misuse remains the fourth leading cause of preventable death in the United States, with nearly 90,000 deaths occurring annually as a consequence of alcohol misuse. Screening, brief intervention, and referral to treatment (SBIRT) is an evidence-based strategy that includes initial screening using a valid tool, determining the need for intervention, a brief motivational interview, and referral to treatment leading to follow-up care when necessary. Although an abundance of evidence-based practices now exist as a guideline for quality patient care, an inconsistency persists between protocols supported by research and those actually integrated into daily clinical practice. Currently, there is little in the literature examining the sustainability of SBIRT programs in emergency departments. The authors examine challenges to SBIRT implementation in the emergency department and propose a number of strategies to ensure continued sustainability of this evidence-based practice.


Assuntos
Alcoolismo/diagnóstico , Alcoolismo/terapia , Enfermagem em Emergência , Serviço Hospitalar de Emergência/organização & administração , Programas de Rastreamento/métodos , Entrevista Motivacional , Encaminhamento e Consulta , Alcoolismo/enfermagem , Medicina de Emergência Baseada em Evidências , Humanos , Estados Unidos
11.
Nurse Educ ; 45(4): 225-228, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31634219

RESUMO

BACKGROUND: The use of substances including alcohol, tobacco, and other drugs increases the risk for injury, noncommunicable disease, and premature death and contributes to the global burden of disease. PROBLEM: The morbidity and mortality rates among patients with at-risk substance use point to the need for future nurses to have the requisite knowledge and competencies to provide care for this population. APPROACH: This article provides guidance for nurse educators in designing curricula that include content related to substance use, including screening, brief intervention, and referral to treatment. OUTCOMES: Expected outcomes for baccalaureate, master's, and doctor of nursing practice programs are informed by the corresponding American Association of Colleges of Nursing Essentials. CONCLUSION: The overall goal of this guidance for nursing education is to advance the knowledge and competencies of the future nursing workforce to address the continuum of substance use and improve the health of the nation.


Assuntos
Currículo , Educação em Enfermagem , Transtornos Relacionados ao Uso de Substâncias , Educação em Enfermagem/métodos , Educação em Enfermagem/organização & administração , Docentes de Enfermagem , Humanos
12.
Neurourol Urodyn ; 38 Suppl 5: S18-S24, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31821633

RESUMO

AIMS: To evaluate the relationship between obesity and urinary incontinence (UI) and to determine the effect of weight reduction on the severity of incontinence. METHODS: This is a consensus report of the proceedings of a Research Proposal from the annual International Consultation on Incontinence-Research Society, 14 June to 16 June, 2018 (Bristol, UK): "What are the relationships between obesity and UI, and the effects of successful bariatric surgery?" RESULTS: Obesity is an increasing problem worldwide and is associated with many adverse effects on health and quality of life. From both translational and clinical studies, there is a strong relationship between obesity and the occurrence of UI. Both mechanical and metabolic factors seem to play an important role including systemic inflammation and oxidative stress due to the release of cytokines in visceral adipose tissue. The success rate of anti-incontinence surgery does not seem to be greatly affected by body mass index (BMI), although reliable data and long-term follow-up are currently lacking. Both weight reduction programs and bariatric surgery can result in amelioration of UI. Various studies have shown that weight loss (particularly that associated with bariatric surgery) can reduce incontinence, and the degree of weight loss is positively correlated with improvement in symptoms. CONCLUSIONS: Obesity is strongly associated with an increased prevalence of both stress and urgency UI. The treatment outcome does not seem to be highly dependent on BMI. Weight reduction is positively correlated with improvement of incontinence symptoms and therefore should be advocated in the management.


Assuntos
Obesidade/epidemiologia , Incontinência Urinária/epidemiologia , Redução de Peso/fisiologia , Cirurgia Bariátrica , Índice de Massa Corporal , Comorbidade , Humanos , Obesidade/fisiopatologia , Prevalência , Qualidade de Vida , Resultado do Tratamento , Incontinência Urinária/fisiopatologia
13.
Geriatr Nurs ; 40(6): 553-557, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31036404

RESUMO

Approximately 40% of older adults drink alcohol. Older adults living in community care residences are a vulnerable population at risk for alcohol use related problems especially for those age 65 years and older who are taking medications, have health problems, and have risky alcohol consumption. Screening, brief intervention, and referral to treatment (SBIRT) is an evidence-based approach for individuals at risk for alcohol use disorders. A quality improvement project evaluated SBIRT education effects on nursing staff knowledge and attitudes related to alcohol use, and resident alcohol use. The staffs' SBIRT knowledge and alcohol related attitudes increased significantly. The staff documented SBIRT intervention 231 times in three months' post training.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Programas de Rastreamento , Recursos Humanos de Enfermagem/educação , Encaminhamento e Consulta , Instituições Residenciais , Transtornos Relacionados ao Uso de Substâncias/terapia , Adulto , Feminino , Humanos , Masculino , Melhoria de Qualidade
15.
J Transcult Nurs ; 29(4): 387-394, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-28854846

RESUMO

INTRODUCTION: Cultural competency is an integral component in undergraduate nursing education to provide patient-centered care and addressing patients' cultural differences. Students need to consider the prevalence of alcohol and other drug use/misuse in patients from all cultures. This project combines cultural competency education, simulation, and educating students to use screening, brief intervention, and referral to treatment for alcohol and other drug use. METHOD: Culturally diverse simulation scenarios were developed and used in the simulation lab with students to reduce stigma surrounding other cultures while learning an evidence-based practice to screen and intervene with patients who use/misuse substances. RESULTS: Results show students value simulation and 91% of the students felt that they were able to apply culturally competent knowledge after the simulation experience. DISCUSSION: Cultural competency principles can be embedded in teaching the broader evidence-based practice of screening, brief intervention, and referral to treatment with undergraduate students. This is a replicable teaching methodology that could be adapted in other schools of nursing.


Assuntos
Competência Cultural/educação , Encaminhamento e Consulta/normas , Treinamento por Simulação/normas , Estudantes de Enfermagem/psicologia , Transtornos Relacionados ao Uso de Substâncias/terapia , Adulto , Assistência à Saúde Culturalmente Competente/métodos , Assistência à Saúde Culturalmente Competente/normas , Bacharelado em Enfermagem , Feminino , Humanos , Masculino , Programas de Rastreamento/métodos , Programas de Rastreamento/normas , Treinamento por Simulação/métodos , Treinamento por Simulação/tendências , Estudantes de Enfermagem/estatística & dados numéricos , Transtornos Relacionados ao Uso de Substâncias/psicologia , Ensino , Resultado do Tratamento
16.
J Interprof Care ; 30(4): 542-4, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27295396

RESUMO

Interprofessional collaborative practice expands resources in rural and underserved communities. This article explores the impact of an online education programme on the perceptions of healthcare providers about interprofessional care within alcohol and drug use screening for rural residents. Nurses, behavioural health counsellors, and public health professionals participated in an evidence-based practice (screening, brief intervention, and referral to treatment-SBIRT) model that targets individuals who use alcohol and other drugs in a risky manner. SBIRT is recommended by the United States Preventive Services Task Force as a universal, evidence-based screening tool. Online modules, case simulation practice, and interprofessional dialogues are used to deliver practice-based learning experiences. A quasi-experimental method with pre-tests and post-tests was utilised. Results indicate increased perceptions of professional competence, need for cooperation, actual cooperation, and role values pre-to-post training. Implications suggest that online interprofessional education is useful but the added component of professional dialogues regarding patient cases offers promise in promoting collaborative practice.


Assuntos
Comportamento Cooperativo , Pessoal de Saúde/educação , Relações Interprofissionais , Programas de Rastreamento , Detecção do Abuso de Substâncias , Adulto , Prática Clínica Baseada em Evidências , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Avaliação de Programas e Projetos de Saúde , População Rural , Inquéritos e Questionários , Estados Unidos
17.
Neurourol Urodyn ; 35(2): 299-303, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26872571

RESUMO

This review article reflects the presentations and subsequent discussions during a think tank at the 5th International Consultation on Incontinence Research Society's annual meeting, held in Bristol, UK (September 22-24, 2014). It reviews the current state of knowledge on the role of hormones in lower urinary tract dysfunction (LUTD) and overactive bladder (OAB) and in particular: highlights some specific basic research findings from discussion participants; reviews future research topics; and discusses potential new therapeutic opportunities for LUTD and OAB. The role of the large conductance voltage- and Ca(2+) -activated K(+) (BK) channels, as novel therapeutic targets for OAB was discussed, in particular as recent studies on human detrusor smooth muscle suggest that estradiol exerts a direct non-genomic activation of the BK channels. Recent developments on the roles of sex hormones on diuresis, as well as the roles of melatonin and vitamin D on LUTD were also discussed. It was concluded that further basic science and translational studies are needed to better understand hormonal regulatory mechanisms of the lower urinary tract and the implications for novel treatment options for LUTD and OAB.


Assuntos
Hormônios/metabolismo , Sintomas do Trato Urinário Inferior/metabolismo , Bexiga Urinária Hiperativa/metabolismo , Bexiga Urinária/metabolismo , Animais , Congressos como Assunto , Terapia de Reposição de Estrogênios , Hormônios/uso terapêutico , Humanos , Sintomas do Trato Urinário Inferior/tratamento farmacológico , Sintomas do Trato Urinário Inferior/fisiopatologia , Bexiga Urinária/efeitos dos fármacos , Bexiga Urinária/fisiopatologia , Bexiga Urinária Hiperativa/tratamento farmacológico , Bexiga Urinária Hiperativa/fisiopatologia
19.
Curr Urol ; 8(3): 119-25, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26889130

RESUMO

OBJECTIVES: To review studies that investigated the role of polyuria on bladder function. METHODS: We performed a search of the English literature through PubMed. We only included animal studies that assessed parameters of bladder function and had compared diabetic and non-diabetic polyuric animals. RESULTS: Fluid intake and urine output were increased in diabetic and polyuric animals; failure to appropriately gain weight was seen in diabetics only. All but 1 study reported increase in bladder weight in both groups. In cystometrograms, control mice showed reductions in basal bladder pressure over time, whereas diabetic and diuretic groups stabilized or increased. Both groups showed larger bladder capacity. Overall, many characteristic changes in cystometrographic studies in diabetic animals could be attributed to polyuria. In histological studies, bladder hypertrophy, increase in smooth muscle and urothelium, and increase in protein and DNA content per bladder were observed in diuretic and diabetic rats. Actual collagen cross-sectional area did not change during the progression of diabetes or diuresis but decreased over time in both groups as a percentage of total tissue area. Both groups expressed less type I collagen mRNA and TGF-beta-1 mRNA. CONCLUSIONS: Although lower urinary tract changes in anatomy and function in diabetic patients might arise from a number of causes, polyuria seems to play an important causative role.

20.
Curr Urol ; 8(3): 113-8, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26889129

RESUMO

This article reviewed the results of studies done on animals that assessed effects of melatonin on bladder function. Melatonin does not change strip relaxation on its own. However, pre-treatment with melatonin decreases contractile responses induced by phenylephrine, acetylcholine, bethanechol and KCl in a dose-dependent manner. The contractile responses induced by the direct calcium channel openers are significantly decreased by melatonin pre-treatment. It also binds to Ca(2+)-activated calmodulin, and prevents it from activating myosin light-chain kinase. It may have direct effects on ion channels which are responsible for regulating bladder contraction. Its other mode of action on bladder occurs via the brain GABAA receptor. Melatonin is an antioxidant. In bladder, treatment with melatonin prevents elevations in malondialdehyde levels, reverses changes in glutathione levels, and decreases myeloperoxidase levels compared with oxidative injury. It can normalize age induced bladder dysfunction through its antioxidant effects, inhibiting smooth muscle contractility directly and restoring impaired contractility via normalization of Ca(2+) handling and sensitizations pathways. It attenuates the severity of cystitis and inflammation. Mast cell proliferation and activation are increased in cystitis, but decrease by melatonin treatment. Also, there is a decrease in expression levels of pro-inflammatory cytokines after melatonin treatment.

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