Diss. (sammanfattning) Linköping : Univ., 2004. / Härtill 4 uppsatser.

ABSTRACT Purpose: Dexamethasone provides potent analgesic and antiemetic effects. Sevoflurane are associated with an increased incidence of postoperative nausea and vomiting (PONV) and delayed patient discharge compared to propofol. This study was designed to evaluate whether the prophylatic use of dexamethasone with sevoflurane could minimize the incidence of PONV and facilitate early recovery after outpatient anorectal surgery. Methods: Forty outpatients undergoing anorectal surgery were randomly assigned to receive either dexamethasone (5 mg IV; n=20) or an equal volume of saline (n=20) before the induction of anesthesia. Anesthesia was induced with sevoflurane 8% and N2O 67% in oxygen (at 6 L/min) followed by placement of laryngeal mask. Anesthesia was maintained with sevoflurane 2-4% end-tidal in combination with N2O 50% in oxygen 3 L/min. All patients were allowed to breathe spontaneously during the operation. The postoperative nausea and vomiting (PONV), VAS pain score and patient satisfaction were recorded. Results: The incidence of PONV and VAS pain score were significant lower in dexamethasone-treated patients compared with saline-treated ones. The time required for discharge was significantly shorter in dexamethasone-treated patients. Above all, the dexamethasone-treated patients expressed higher satisfaction index. There was no significant difference in recovery time for eye opening, response to commands, orientation, and ambulatory. Conclusions: The prophylactic administration of dexamethasone reduces the incidence of PONV andVAS pain score, promotes recovery to home readiness, and improves the satisfaction after the anesthesia with spontaneously breathing of sevoflurane through laryngeal mask in outpatients undergoing anorectal surgery.

Diss. (sammanfattning) Stockholm : Karol. inst., 2002. / Härtill 6 uppsatser.

Thesis (M.A.)--Northern Kentucky University, 2008. / Made available through ProQuest. Publication number: AAT 1454014. ProQuest document ID: 1679682531. Includes bibliographical references (p. 34-36)

Yes / Nausea and vomiting are common symptoms in palliative care. Haloperidol is often used as an antiemetic in this context, although direct evidence supporting this practice is limited. To evaluate the efficacy and clinical use of haloperidol as an antiemetic in nonpalliative care contexts to inform practice, the authors conducted a rapid review of (i) published evidence to supplement existing systematic reviews, and (ii) practical aspects affecting the use of haloperidol including formulations and doses that are commonly available internationally. In nausea and vomiting related to cancer treatment, haloperidol was superior to control in two small studies. In postoperative nausea and vomiting (PONV), two randomized controlledtrials found treatment with haloperidol comparable to ondansetron. In palliative care, an observational study found a complete response rate of 24% with haloperidol (one in four patients) which would be consistent with a number needed to treat (NNT) of 3 to 5 derived from PONV. There remains insufficient direct evidence to definitively support the use of haloperidol for the management of nausea and vomiting in palliative care. However, generalizing evidence from other clinical contexts may have some validity.

Uma das manifestações mais comuns em sala de recuperação anestésica é a náusea, geralmente associada à anestesia. Além do aspecto subjetivo do desconforto, os pacientes que não apresentam melhora desse sintoma podem ter alta retardada, tanto da sala de recuperação anestésica quanto hospitalar. Como conseqüências, temos a demora do retorno às funções normais, a elevação dos custos hospitalares e um menor grau de satisfação do paciente. O objetivo do presente estudo foi realizar uma análise crítica das evidências disponíveis na literatura sobre os fatores relacionados e características definidoras do diagnóstico de enfermagem náusea, no período pós-operatório imediato, por meio de uma revisão integrativa. No desenvolvimento deste estudo, utilizaram-se como fonte de levantamento de dados quatro base de dados: Lilacs, Pubmed, Cinahl e Cochrane - Revisões Sistemáticas, e a amostra constituiu-se de 31 estudos. A análise das publicações selecionadas demonstrou que as náuseas e vômitos no período pós-operatório são considerados eventos relacionados e, na maioria das vezes, avaliados como um evento único. Os fatores relacionados identificados, de acordo com a freqüência de aparecimento e nível de evidência, foram: sexo feminino, não fumante, história prévia de náuseas e vômitos no pós-operatório, história de náusea associada ao movimento, idade, tipo de cirurgia, uso de opióides no trans e pós-operatório, uso de anestésicos voláteis e administração de óxido nitroso. Em relação às características definidoras evidenciamos nos estudos analisados: palidez, taquicardia, aumento na salivação, transpiração, sensação de calor e frio, rubor, consciência do impulso do vômito, tonturas, bradicardia, dilatação pupilar, variações na pressão arterial, respiração profunda, rápida e irregular. A importância de aperfeiçoar e legitimar os elementos que fazem parte da Taxonomia II da NANDA (2006) está em possibilitar aos profissionais enfermeiros que atuam em centro cirúrgico e recuperação pós-anestésica o planejamento da assistência de enfermagem ao paciente nos três períodos da experiência cirúrgica, visando à minimização das complicações no pósoperatório e promover uma reabilitação mais rápida e tranqüila. / Nausea is one of the most common adverse events in the pots-anesthesia recovery room. It is usually associated to anesthesia. Besides the subjective aspect it can be very distressing for patients. The patients who are suffering from nausea and do show any improvement at all may have a late discharge from both the post-anesthesia recovery room and the hospital. The delayed return to normal functions, the high hospital costs, and the lower degree of the patient\'s satisfaction are some of the consequences. The aim of the present study was to perform a critical analysis of the available evidences in the literature about the related factors and the defining characteristics of nursing diagnosis nausea over the immediate postoperative period by means of an integrative review. During the development of this study systematic reviews and four databases for data collection were used: Lilacs, Pubmed, Cinahl, and Cochrane. From the screened reports, 31 of those were potentially relevant for the purpose of this study. The analysis of the retrieved studies showed that vomiting and nausea in the postoperative period are considered to be closely related and most of the time no distinction can be made between nausea and vomiting. The identified factors related according to the rate of appearance and evidence level were the following: female gender, non-smoking, prior history of vomiting and nausea in the postoperative period, history of nausea associated to motion, age, type of surgery, opioid use in a trans- and a postoperative period, use of volatile anesthetics, and nitrous oxide administration. In relation to the defining characteristics we highlighted the following: pallor, tachycardia, an increased secretion of saliva (sialorrhea, salivation), and perspiration, sensation of cold and heat, blush, awareness of the vomiting impulse, dizziness, bradycardia, pupillary dilation, arterial blood pressure changes, deep, fast, and irregular breathing. The importance to improve and to validate the NANDA\'s Taxonomy II (2006) elements is to enable the registered nurses, who work at surgery centers and anesthesia recovery rooms, to plan the nursing care for the patient in the 3-period of surgical experience aiming at to minimizing the complications in the postoperative period and to stimulate a fast and an undisturbed rehabilitation.

Uma das manifestações mais comuns em sala de recuperação anestésica é a náusea, geralmente associada à anestesia. Além do aspecto subjetivo do desconforto, os pacientes que não apresentam melhora desse sintoma podem ter alta retardada, tanto da sala de recuperação anestésica quanto hospitalar. Como conseqüências, temos a demora do retorno às funções normais, a elevação dos custos hospitalares e um menor grau de satisfação do paciente. O objetivo do presente estudo foi realizar uma análise crítica das evidências disponíveis na literatura sobre os fatores relacionados e características definidoras do diagnóstico de enfermagem náusea, no período pós-operatório imediato, por meio de uma revisão integrativa. No desenvolvimento deste estudo, utilizaram-se como fonte de levantamento de dados quatro base de dados: Lilacs, Pubmed, Cinahl e Cochrane - Revisões Sistemáticas, e a amostra constituiu-se de 31 estudos. A análise das publicações selecionadas demonstrou que as náuseas e vômitos no período pós-operatório são considerados eventos relacionados e, na maioria das vezes, avaliados como um evento único. Os fatores relacionados identificados, de acordo com a freqüência de aparecimento e nível de evidência, foram: sexo feminino, não fumante, história prévia de náuseas e vômitos no pós-operatório, história de náusea associada ao movimento, idade, tipo de cirurgia, uso de opióides no trans e pós-operatório, uso de anestésicos voláteis e administração de óxido nitroso. Em relação às características definidoras evidenciamos nos estudos analisados: palidez, taquicardia, aumento na salivação, transpiração, sensação de calor e frio, rubor, consciência do impulso do vômito, tonturas, bradicardia, dilatação pupilar, variações na pressão arterial, respiração profunda, rápida e irregular. A importância de aperfeiçoar e legitimar os elementos que fazem parte da Taxonomia II da NANDA (2006) está em possibilitar aos profissionais enfermeiros que atuam em centro cirúrgico e recuperação pós-anestésica o planejamento da assistência de enfermagem ao paciente nos três períodos da experiência cirúrgica, visando à minimização das complicações no pósoperatório e promover uma reabilitação mais rápida e tranqüila. / Nausea is one of the most common adverse events in the pots-anesthesia recovery room. It is usually associated to anesthesia. Besides the subjective aspect it can be very distressing for patients. The patients who are suffering from nausea and do show any improvement at all may have a late discharge from both the post-anesthesia recovery room and the hospital. The delayed return to normal functions, the high hospital costs, and the lower degree of the patient\'s satisfaction are some of the consequences. The aim of the present study was to perform a critical analysis of the available evidences in the literature about the related factors and the defining characteristics of nursing diagnosis nausea over the immediate postoperative period by means of an integrative review. During the development of this study systematic reviews and four databases for data collection were used: Lilacs, Pubmed, Cinahl, and Cochrane. From the screened reports, 31 of those were potentially relevant for the purpose of this study. The analysis of the retrieved studies showed that vomiting and nausea in the postoperative period are considered to be closely related and most of the time no distinction can be made between nausea and vomiting. The identified factors related according to the rate of appearance and evidence level were the following: female gender, non-smoking, prior history of vomiting and nausea in the postoperative period, history of nausea associated to motion, age, type of surgery, opioid use in a trans- and a postoperative period, use of volatile anesthetics, and nitrous oxide administration. In relation to the defining characteristics we highlighted the following: pallor, tachycardia, an increased secretion of saliva (sialorrhea, salivation), and perspiration, sensation of cold and heat, blush, awareness of the vomiting impulse, dizziness, bradycardia, pupillary dilation, arterial blood pressure changes, deep, fast, and irregular breathing. The importance to improve and to validate the NANDA\'s Taxonomy II (2006) elements is to enable the registered nurses, who work at surgery centers and anesthesia recovery rooms, to plan the nursing care for the patient in the 3-period of surgical experience aiming at to minimizing the complications in the postoperative period and to stimulate a fast and an undisturbed rehabilitation.

Este estudo teve como objetivos analisar o conceito náusea em pacientes no período pósoperatório imediato; avaliar a validade de conteúdo e clínica do diagnóstico de enfermagem Náusea no período pós-operatório imediato, considerando-se o modelo de Fehring; identificar a incidência do referido diagnóstico em pacientes no período pós-operatório imediato; verificar possíveis associações entre os antecedentes de náusea obtidos na análise de conceito e os identificados nos pacientes com náusea no pós-operatório imediato e verificar a frequência de ocorrência das características definidoras principais e secundárias do diagnóstico Náusea. A pesquisa foi desenvolvida em três etapas: análise de conceito, validação de conteúdo e validação clínica. A análise de conceito seguiu as oito fases propostas por Walker a Avant: selecionar o conceito, definir o objetivo da análise, identificar a utilização do conceito, definir atributos definidores, desenvolver casos-modelos, desenvolver outros casos, identificar antecedentes e consequentes e verificar as referências empíricas. Essa etapa foi fundamental para a realização das etapas posteriores (validação de conteúdo e validação clínica), permitindo a construção de definições operacionais e a elaboração de instrumentos de coleta de dados mais direcionados ao cenário do paciente com náusea no período pós-operatório. Participaram da validação de conteúdo 52 expertos que responderam a um instrumento que continha dados de identificação profissional e de validação do diagnóstico de enfermagem Náusea (enunciado, definição, posição que ocupa na estrutura taxonômica e características definidoras, descritas em uma escala tipo Likert). A maioria dos expertos considerou o domínio 12 (Conforto), a classe 1 (conforto físico) e o enunciado (náusea) adequados ao diagnóstico. Foram sugeridas modificações na definição atual do referido diagnóstico de enfermagem. Quatro características definidoras foram consideradas principais (relato de náusea, salivação aumentada, aversão à comida e sensação de vômito) e oito foram denominadas secundárias (deglutição aumentada, gosto amargo na boca, palidez, taquicardia, diaforese, sensação de calor e frio, alterações da pressão arterial e dilatação pupilar). Na etapa de validação clínica, 106 pacientes foram incluídos na amostra. Para a coleta de dados, foram utilizados o questionário de avaliação pré, intra e pósoperatória e a Escala Hospitalar de Ansiedade e Depressão. A náusea foi avaliada em duas etapas: 1) análise das manifestações objetivas (dois enfermeiros simultaneamente) e 2) subjetivas (um enfermeiro). A incidência de náusea foi de 21,70% e, na maioria das vezes, de moderada intensidade. Os antecedentes associados à presença de náuseas no pós-operatório foram: sexo, idade, tipo de anestesia, presença de dor, movimentação e alimentação pósoperatória e odores nocivos. Na etapa 1, a característica definidora denominada principal foi relato de náusea, e as manifestações secundárias foram sensação de vômito, palidez e deglutição aumentada. O índice de concordância variou de 86,95% a 100,00%. Na etapa 2, as características consideradas principais foram relato de náusea e sensação de vômito, e as características definidoras secundárias identificadas foram salivação aumentada e sensação de calor e frio. Os escores totais do diagnóstico de enfermagem Náusea foram de 0,79 e 0,73 para as validações de conteúdo e clínica respectivamente, considerado válido para a Taxonomia da North American Nursing Diagnosis Association - International (NANDA-I). Concluiu-se que o relato de náusea, sensação de vômito, palidez, salivação aumentada, deglutição aumentada e sensação de calor e frio são fortes indicativos do diagnóstico de enfermagem Náusea. / The aims of this study were to analyze the nausea concept in patients during the immediate postoperative period; to assess the content and clinical validity of the nursing diagnosis nausea in the immediate postoperative period, considering Fehring\'s model; to identify the incidence of this diagnosis in patients during the immediate postoperative period; to check for possible associations between the nausea antecedents obtained in the concept analysis and those identified in patients with immediate postoperative nausea and to verify the frequency of the primary and secondary defining characteristics of the Nausea diagnosis. The research was developed in three phases: concept analysis, content validation and clinical validation. The concept analysis followed the eight phases proposed by Walker and Avant: select the concept, define the aim of the analysis, identify the use of the concept, define defining attributes, develop model cases, develop other cases, identify antecedents and consequences and check empirical references. This phase was fundamental to accomplish further phases (content validation and clinical validation), permitting the construction of operational definitions and the elaboration of data collection instruments that were better directed at the context of postoperative nausea patients. Fifty-two specialists participated in the content validation, who answered an instrument with professional identification data and the validation of the nursing diagnosis nausea (wording, definition, position in taxonomic structure and defining characteristics, described on a Likert scale). Most experts considered domain 12 (Comfort), class 1 (physical comfort) and the wording (nausea) adequate for the diagnosis. Modifications were suggested in the current definition of the referred nursing diagnosis. Four defining characteristics were considered primary (reported nausea, increased salivation, aversion toward food and gagging sensation), while eight were called secondary (increased swallowing, sour taste in the mouth, pallor, tachycardia, excessive sweating, feeling hot and cold, blood pressure alterations and pupil dilation). In the clinical validation phase, 106 patients were included in the sample. For data collection the pre, intra and post-operative assessment questionnaire and the Hospital Anxiety and Depression Scale were used. Nausea was assessed in two phases: 1) analysis of objective manifestations (two nurses simultaneously) and 2) subjective (one nurse). The incidence level of nausea corresponded to 21.70%, in most cases of moderate intensity. The following antecedents were associated with the presence of nausea and vomiting: gender, age, anesthesia type, presence of pain, postoperative movements and meals and harmful smells. In phase 1, the defining characteristic that was considered primary was reported nausea and the secondary manifestations were gagging sensation, pallor and increased swallowing. Agreement levels ranged between 86.95% and 100.00%. In phase 2, reported nausea and gagging sensation were considered primary characteristics, while increased salivation and feeling hot and cold were identified as secondary defining characteristics. The total scores of the nursing diagnosis Nausea corresponded to 0.79 and 0.73 for the content and clinical validations, respectively, which are considered valid for the Taxonomy of the North American Nursing Diagnosis Association - International (NANDA-I). In conclusion, reported nausea, gagging sensation, pallor, increased salivation, increased swallowing and feeling hot and cold are strong signs of the nursing diagnosis Nausea.

<p>Postoperative nausea and vomiting (PONV) is still a clinical problem and its incidence is unacceptably high. After the introduction of propofol as an agent for induction and maintenance of anesthesia, it was reported that the incidence of PONV was lower. It was also proposed that propofol possesses antiemetic effects. Dopamine, serotonin and opioids may contribute to PONV. Therefore the purpose of these investigations was to evaluate if propofol has dopamine, serotonin or opioid antagonistic effects and if a subhypnotic infusion of propofol decreases the incidence of PONV. </p><p>Nausea and vomiting were induced in volunteers by a dopamine agonist, apomorphine, and by ipecacuanha which releases serotonin from the enterochromaffin cells in the gut. The effects of propofol on gastric emptying and orocecal transit time were evaluated in volunteers with the paracetamol method and by measuring the endtidal hydrogen concentration after ingestion of the trisaccharide raffinose. The effects of morphine on gastric emptying and gastric tone were studied in patients before surgery with the paracetamol method and with an electronic barostat, respectively. The effects of low dose propofol for prophylaxis of PONV were studied in 172 patients undergoing breast and abdominal surgery. Propofol prophylaxis was compared with a multidrug regimen consisting of dexamethasone and three antiemetic drugs, ondansetron, droperidol and metoclopramide. </p><p>Propofol did not abolish apomorphine-induced vomiting but reduced the number of retchings induced by ipecacuanha. Propofol sedation did not influence gastric emptying of liquids but it slightly prolonged orocecal transit time. Gastric relaxation induced by morphine was abolished by propofol but propofol did not abolish morphine-induced delay of gastric emptying. Propofol in a low dose infusion reduced the incidence of PONV but nausea and especially vomiting increased significantly after termination of the infusion. Pro- phylaxis with the multidrug regimen was very effective in preventing PONV. </p><p>These studies have shown that propofol does not have any dopamine antagonistic effect but may have a weak serotonin antagonistic effect. Propofol cannot abolish morphine-induced delay of gastric emptying. Low dose propofol infusion was effective in preventing PONV as long as the infusion was ongoing but after termination of the infusion nausea and especially vomiting substantially increased. The multidrug regimen (dexamethasone, ondansetron, droperidol, metoclopramide) was very effective in preventing PONV and can be recommended as prophylaxis in patient groups with a known high risk for PONV. </p>

Postoperative nausea and vomiting (PONV) is still a clinical problem and its incidence is unacceptably high. After the introduction of propofol as an agent for induction and maintenance of anesthesia, it was reported that the incidence of PONV was lower. It was also proposed that propofol possesses antiemetic effects. Dopamine, serotonin and opioids may contribute to PONV. Therefore the purpose of these investigations was to evaluate if propofol has dopamine, serotonin or opioid antagonistic effects and if a subhypnotic infusion of propofol decreases the incidence of PONV. Nausea and vomiting were induced in volunteers by a dopamine agonist, apomorphine, and by ipecacuanha which releases serotonin from the enterochromaffin cells in the gut. The effects of propofol on gastric emptying and orocecal transit time were evaluated in volunteers with the paracetamol method and by measuring the endtidal hydrogen concentration after ingestion of the trisaccharide raffinose. The effects of morphine on gastric emptying and gastric tone were studied in patients before surgery with the paracetamol method and with an electronic barostat, respectively. The effects of low dose propofol for prophylaxis of PONV were studied in 172 patients undergoing breast and abdominal surgery. Propofol prophylaxis was compared with a multidrug regimen consisting of dexamethasone and three antiemetic drugs, ondansetron, droperidol and metoclopramide. Propofol did not abolish apomorphine-induced vomiting but reduced the number of retchings induced by ipecacuanha. Propofol sedation did not influence gastric emptying of liquids but it slightly prolonged orocecal transit time. Gastric relaxation induced by morphine was abolished by propofol but propofol did not abolish morphine-induced delay of gastric emptying. Propofol in a low dose infusion reduced the incidence of PONV but nausea and especially vomiting increased significantly after termination of the infusion. Pro- phylaxis with the multidrug regimen was very effective in preventing PONV. These studies have shown that propofol does not have any dopamine antagonistic effect but may have a weak serotonin antagonistic effect. Propofol cannot abolish morphine-induced delay of gastric emptying. Low dose propofol infusion was effective in preventing PONV as long as the infusion was ongoing but after termination of the infusion nausea and especially vomiting substantially increased. The multidrug regimen (dexamethasone, ondansetron, droperidol, metoclopramide) was very effective in preventing PONV and can be recommended as prophylaxis in patient groups with a known high risk for PONV.