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1.
Parkinsonism Relat Disord ; 85: 109-113, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33845342

RESUMO

INTRODUCTION: During the first peak phase of the COVID-19 pandemic, the German Ministry of Health recommended that elective treatments should be postponed to increase hospital capacities. This has also compromised the capacity for application of specialized Parkinson's disease (PD) therapies to an unknown extent. METHODS: We conducted a nationwide cross-sectional study using administrative database of all hospitalized patients with main diagnosis of PD receiving multimodal complex treatment (PD-MCT), initial setup of levodopa/carbidopa intestinal gel (LCIG) or continuous subcutaneous apomorphine infusion (CSAI) in Germany. We compared case numbers and clinical characteristics of the pandemic (March 16th - May 15th, 2020) and post-lockdown (July 16th - September 15th, 2020) period with the pre-pandemic (January 16th - March 15th, 2020) and historical control period (March 16th - May 15th, 2019). RESULTS: We identified a strong decline for PD-MCT(-62.8%) and for the application of drug pump-based therapies (-69.4%) during the first peak phase of the pandemic as compared to the pre-pandemic period while specialized PD treatment procedures increased again in the post-lockdown phase. Advanced disease was a marker for PD-MCT patients during the pandemic period. CONCLUSION: Besides the marked decline in specialized PD treatments during the first peak phase of the COVID-19 pandemic, we found recuperative effects for these procedures in the post-lockdown period without reaching pre-pandemic levels. Strengthening treatment capacities for PD patients, even in the event of a persistent pandemic, is urgently needed in order to maintain the quality of care.


Assuntos
Antiparkinsonianos/administração & dosagem , COVID-19/epidemiologia , Bombas de Infusão/tendências , Doença de Parkinson/epidemiologia , Doença de Parkinson/terapia , Idoso , Idoso de 80 Anos ou mais , COVID-19/prevenção & controle , Terapia Combinada/métodos , Terapia Combinada/tendências , Estudos Transversais , Feminino , Alemanha/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade
2.
Am J Health Syst Pharm ; 77(15): 1231-1236, 2020 07 23.
Artigo em Inglês | MEDLINE | ID: mdl-32620966

RESUMO

PURPOSE: To describe the benefits of smart infusion pump interoperability with an electronic medical record (EMR) system in an adult intensive care unit (ICU) setting. SUMMARY: In order to assess the impact of smart infusion pump and EMR interoperability, we observed whether there were changes in the frequency of electronic medication administration record (eMAR) documentation of dose titrations in epinephrine and norepinephrine infusions in the ICU setting. As a secondary endpoint, we examined whether smart pump/EMR interoperability had any impact on the rate of alerts triggered by the dose-error reduction software. Pharmacist satisfaction was measured to determine the impact of smart pump/EMR interoperability on pharmacist workflow. In the preimplementation phase, there were a total of 2,503 administrations of epinephrine and norepinephrine; 13,299 rate changes were documented, for an average of 5.31 documented rate changes per administration. With smart pump interoperability, a total of 13,024 rate changes were documented in association with 1,401 administrations, for an average of 9.29 documented rate changes per administration (a 74.9% increase). A total of 1,526 dose alerts were triggered in association with 76,145 infusions in the preimplementation phase; there were 820 dose alerts associated with 48,758 autoprogammed infusions in the postimplementation phase (absolute difference, -0.32%). ICU pharmacists largely agreed (75% of survey respondents) that the technology provided incremental value in providing patient care. CONCLUSION: Interoperability between the smart pump and EMR systems proved beneficial in the administration and monitoring of continuous infusions in the ICU setting. Additionally, ICU pharmacists may be positively impacted by improved clinical data accuracy and operational efficiency.


Assuntos
Cuidados Críticos/tendências , Registros Eletrônicos de Saúde/tendências , Interoperabilidade da Informação em Saúde/tendências , Bombas de Infusão/tendências , Unidades de Terapia Intensiva/tendências , Centros Médicos Acadêmicos/normas , Centros Médicos Acadêmicos/tendências , Cuidados Críticos/normas , Registros Eletrônicos de Saúde/normas , Determinação de Ponto Final/normas , Determinação de Ponto Final/tendências , Interoperabilidade da Informação em Saúde/normas , Humanos , Bombas de Infusão/normas , Unidades de Terapia Intensiva/normas
3.
J Neurointerv Surg ; 12(6): 579-584, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31653754

RESUMO

INTRODUCTION: Higher aspiration forces using larger bore catheters in direct aspiration thrombectomy (ADAPT) have been associated with shorter procedure time and better outcomes in patients treated for acute ischemic stroke (AIS). However, the effect of using reperfusion pumps of higher aspiration power on outcomes of ADAPT has not been investigated. We evaluated the effect of using pumps with different aspiration powers on technical and clinical outcomes after ADAPT. METHODS: We reviewed a retrospective database of AIS cases between January 2018 and February 2019, while comparing technical and clinical outcomes between patients undergoing ADAPT using the MAX pump (28.5 inHg power) vs the ENGINE pump(29.2 inHg power). RESULTS: Among 194 patients (48% females, age 69±15 years) included in the study, 73 patients undergoing ADAPT using the ENGINE pump were age-, gender-, comorbidities-, and operator-matched to 118 patients treated using the MAX pump. The ENGINE group had shorter procedure time (20±17 vs 27±21 mins, p=0.017), lower number of aspiration attempts (2.2±1.6 vs 2.8±1.9, p=0.047), and similar rates of favorable 90 day modified Rankin Scale. Using multivariate linear regression, the use of the ENGINE reperfusion pump with higher vacuum power was independently and inversely correlated with procedure time (coefficient -2.23, p=0.027). While controlling for confounders, there was a trend toward an inverse correlation between use of the ENGINE pump and the number of attempts on linear regression (coefficient -1.04, p=0.09) and lower odds of PH2/intracranial (ICH) hemorrhages on logistic regression (OR 0.227, p=0.075). CONCLUSION: Our findings suggest that the use of the ENGINE reperfusion pump of higher aspiration power during ADAPT decreases procedure time, without increasing complications and post-procedural hemorrhage rates.


Assuntos
Isquemia Encefálica/cirurgia , Revascularização Cerebral/métodos , Bombas de Infusão , Acidente Vascular Cerebral/cirurgia , Trombectomia/métodos , Idoso , Idoso de 80 Anos ou mais , Isquemia Encefálica/diagnóstico , Revascularização Cerebral/tendências , Feminino , Humanos , Bombas de Infusão/tendências , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Estudos Retrospectivos , Acidente Vascular Cerebral/diagnóstico , Trombectomia/tendências , Resultado do Tratamento
4.
Anesth Analg ; 129(3): 720-725, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31425211

RESUMO

BACKGROUND: Patient-controlled analgesia (PCA) is one of the most popular and effective methods for managing postoperative pain. Various types of continuous infusion pumps are available for the safe and accurate administration of analgesic drugs. Here we report the causes and clinical outcomes of device-related errors in PCA. METHODS: Clinical records from January 1, 2011 to December 31, 2014 were collected by acute pain service team nurses in a 2715-bed tertiary hospital. Devices for all types of PCA, including intravenous PCA, epidural PCA, and nerve block PCA, were included for analysis. The following 4 types of infusion pumps were used during the study period: elastomeric balloon infusers, carbon dioxide-driven infusers, semielectronic disposable pumps, and electronic programmable pumps. We categorized PCA device-related errors based on the error mechanism and clinical features. RESULTS: Among 82,698 surgical patients using PCA, 610 cases (0.74%) were reported as human error, and 155 cases (0.19%) of device-related errors were noted during the 4-year study period. The most common type of device-related error was underflow, which was observed in 47 cases (30.3%). The electronic programmable pump exhibited the high incidence of errors in PCA (70 of 15,052 patients; 0.47%; 95% confidence interval, 0.36-0.59) among the 4 types of devices, and 96 of 152 (63%) patients experienced some type of adverse outcome, ranging from minor symptoms to respiratory arrest. CONCLUSIONS: The incidence of PCA device-related errors was <0.2% and significantly differed according to the infusion pump type. A total of 63% of patients with PCA device-related errors suffered from adverse clinical outcomes, with no mortality. Recent technological advances may contribute to reducing the incidence and severity of PCA errors. Nonetheless, the results of this study can be used to improve patient safety and ensure quality care.


Assuntos
Analgesia Controlada pelo Paciente/efeitos adversos , Analgésicos Opioides/efeitos adversos , Falha de Equipamento , Erros de Medicação/efeitos adversos , Centros de Atenção Terciária , Analgesia Controlada pelo Paciente/tendências , Feminino , Humanos , Bombas de Infusão/efeitos adversos , Bombas de Infusão/tendências , Masculino , Erros de Medicação/tendências , Pessoa de Meia-Idade , Estudos Retrospectivos , Centros de Atenção Terciária/tendências
5.
Intensive Care Med ; 45(1): 33-43, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30617461

RESUMO

PURPOSE: Postoperative pain after cardiac surgery, exacerbated by cough and sternal mobilization, limits clearance of bronchopulmonary secretions and may predispose to postoperative pneumonia. In this study, we tested the ability of local anesthetic continuous wound infusion to prevent pneumonia after cardiac surgery with sternotomy and cardiopulmonary bypass (CPB) owing to better analgesia and bronchopulmonary drainage. METHODS: In this randomized, double-blind, placebo-controlled trial conducted in five academic centers, patients undergoing cardiac surgery with sternotomy and CPB were enrolled from February 2012 until November 2014, and were followed over 30 days. Patients were assigned to a 48-h infusion (10 ml h-1) of L-bupivacaine (12.5 mg h-1) or placebo (saline) via a pre-sternal multiperforated catheter. Anesthesia and analgesia protocols were standardized. The primary end point was the incidence of pneumonia during the study period, i.e., until hospital discharge or 30 days. We hypothesized a 30% reduction in the incidence of pneumonia. RESULTS: Among 1493 randomized patients, 1439 completed the trial. Pneumonia occurred in 36/746 patients (4.9%) in the L-bupivacaine group and in 42/739 patients (5.7%) in the placebo group (absolute risk difference taking into account center and baseline risk of postoperative pneumonia, - 1.3% [95% CI - 3.4; 0.8] P = 0.22). In the predefined subgroup of patients at high risk, L-bupivacaine decreased the incidence of pneumonia (absolute risk difference, - 5.6% [95% CI - 10.0; - 1.1], P = 0.01). CONCLUSIONS: After cardiac surgery with sternotomy, continuous wound infusion of L-bupivacaine failed to decrease the incidence of pneumonia. These findings do not support the use of local anesthetic continuous wound infusion in this indication. Further study should investigate its effect in high-risk patients. TRIAL REGISTRATION: EudraCT Number: 2011-003292-10; Clinicaltrials.gov Identifier: NCT01648777.


Assuntos
Anestésicos Locais/administração & dosagem , Bombas de Infusão/normas , Esternotomia/efeitos adversos , Centros Médicos Acadêmicos/organização & administração , Centros Médicos Acadêmicos/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Anestésicos Locais/uso terapêutico , Bupivacaína/administração & dosagem , Bupivacaína/uso terapêutico , Procedimentos Cirúrgicos Cardíacos/efeitos adversos , Procedimentos Cirúrgicos Cardíacos/métodos , Procedimentos Cirúrgicos Cardíacos/normas , Método Duplo-Cego , Feminino , França/epidemiologia , Humanos , Bombas de Infusão/estatística & dados numéricos , Bombas de Infusão/tendências , Masculino , Pessoa de Meia-Idade , Placebos , Pneumonia/tratamento farmacológico , Pneumonia/epidemiologia , Pneumonia/prevenção & controle , Complicações Pós-Operatórias/tratamento farmacológico , Complicações Pós-Operatórias/epidemiologia , Esternotomia/métodos , Esternotomia/normas , Esternotomia/estatística & dados numéricos
6.
BMC Cancer ; 18(1): 1224, 2018 Dec 06.
Artigo em Inglês | MEDLINE | ID: mdl-30522445

RESUMO

BACKGROUND: In case of high grade non-muscle invasive bladder cancer (HG-NMIBC), intravesical BCG represents the first-line treatment; despite the "gold" standard therapy, up to 50% of patients relapse, needing radical cystectomy. Hence, alternative therapeutic strategies have been developed. The aim of the study was to evaluate a first-line salvage treatment with EMDA®-MMC in patients with HGNMIBC unresponsive to BCG. METHODS: We carried out a prospective, single-center, single-arm Phase II study in order to evaluate the efficacy (in terms of recurrence and progression) and the safety of the EMDA®-MMC treatment in 26 (21 male, 5 female) consecutive patients with "BCG refractory" HGNMIBC on a 3 years follow-up. EMDA®-MMC treatment consisted of 40 mg of MMC diluted in 100 ml of sterile water retained in the bladder for 30 min with 20 mA pulsed electric current. EMDA®-MMC regimen consisted of an induction course of 6 weekly instillations followed by a maintenance course of 6 monthly instillations. Follow-up was performed with systematic mapping biopsies of the bladder (with sampling in the prostatic urethra for men), voiding and washing urinary cytology, radiological study of the upper urinary tract. We performed Survival Kaplan-Meier curves and Log-rank test in order to analyze high grade disease-free survival. RESULTS: At the end of follow-up, 16 patients (61.5%) preserved their native bladder; 10 patients (38.4%) underwent radical cystectomy, in 6 patients (23.1%) for recurrent HGNMIBC and in 4 patients (15.4%) for progression to muscle-invasive disease. At the end of follow-up, stratifying patients based on TNM classification (TaG3, T1G3, Cis, TaT1G3 + Cis), disease-free rates were 75, 71.4, 50 and 25%, respectively; survival curves showed statistically significant differences (p value < 0.05). Regarding toxicity, we reported severe adverse systemic event of hypersensitivity to the MMC in 3 patients (11.5%), and local side effects in 6 patients (26.1%). CONCLUSIONS: In the field of alternative strategies to radical cystectomy, the EMDA®-MMC could be considered safe and effective in high-risk NMIBC unresponsive to BCG, as a "bladder sparing" therapy in selected patients. Multicenter studies with a larger number of patients and a longer follow-up might confirm our preliminary results. TRIAL REGISTRATION: EudraCT2017-002585-43. 17 June 2017 (retrospectively registered).


Assuntos
Antibióticos Antineoplásicos/administração & dosagem , Bombas de Infusão , Mitomicina/administração & dosagem , Mycobacterium bovis , Terapia de Salvação/métodos , Neoplasias da Bexiga Urinária/tratamento farmacológico , Administração Intravesical , Idoso , Feminino , Seguimentos , Humanos , Bombas de Infusão/tendências , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica/patologia , Invasividade Neoplásica/prevenção & controle , Estudos Prospectivos , Fatores de Risco , Terapia de Salvação/tendências , Fatores de Tempo , Falha de Tratamento , Neoplasias da Bexiga Urinária/diagnóstico
8.
BMC Musculoskelet Disord ; 18(1): 32, 2017 01 23.
Artigo em Inglês | MEDLINE | ID: mdl-28114927

RESUMO

BACKGROUND: We performed a systematic review and meta-analysis of randomized controlled trials (RCTs) were to evaluate the effect and safety of local anesthetic infusion pump versus placebo for pain management following total knee arthroplasty (TKA). METHODS: In September 2016, a systematic computer-based search was conducted in the Pubmed, ISI Web of Knowledge, Embase, Cochrane Database of Systematic Reviews. Randomized controlled trials of patients prepared for primary TKA that compared local anesthetic infusion pump versus placebo for pain management following TKA were retrieved. The primary endpoint was the visual analogue scale (VAS) with rest or mobilization at 24, 48 and 72 h and morphine consumption at 24 and 48 h. The second outcomes are range of motion, length of hospital stay (LOS) and complications (infection, deep venous thrombosis (DVT), prolonged drainage and postoperative nausea and vomiting (PONV)). RESULTS: Seven clinical studies with 587 patients were included and for meta-analysis. Local anesthetic infusion pump are associated with less pain scores with rest or mobilization at 24 and 48 h with significant difference. However, the difference was likely no clinical significance. There were no significant difference between the LOS, the occurrence of DVT, prolonged drainage and PONV. However, local anesthetic infusion pump may be associated with more infection. CONCLUSION: Based on the current meta-analysis, we found no evidence to support the routine use of local anesthetic infusion pump in the management of acute pain following TKA. More RCTs are still need to identify the pain control effects and optimal dose and speed of local anesthetic pain pump.


Assuntos
Anestésicos Locais/administração & dosagem , Artroplastia do Joelho/efeitos adversos , Bombas de Infusão , Manejo da Dor/métodos , Dor Pós-Operatória/tratamento farmacológico , Artroplastia do Joelho/tendências , Humanos , Bombas de Infusão/tendências , Dor Pós-Operatória/diagnóstico , Dor Pós-Operatória/epidemiologia , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos
10.
Pol Arch Med Wewn ; 126(10): 739-745, 2016 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-27568734

RESUMO

INTRODUCTION    Pregnancy in women with type 1 diabetes mellitus (T1DM) is associated with higher risk of complications. Strict glycemic control before conception reduces the risk of unfavorable outcomes. OBJECTIVES    The aim of the study was to assess changes in clinical characteristics, preconception treatment, and glycemic control of women with T1DM at the first antinatal visit. PATIENTS AND METHODS    We analyzed the records from the first antenatal visit of 524 women with T1DM in the years 1998-2012. The follow­up period was divided into 3 5­year periods. RESULTS    Differences in the age of patients between the 3 follow­up periods were observed (28.2 ±5.7 years for 1998-2002; 27.3 ±4.5 years for 2003-2007; and 29.4 ±4.8 years for 2008-2012; P <0.0001). The number of women planning pregnancy did not change and reached 32.1% in the first, 44.4% in the second, and 40.4% in the third period (P = 0.2). The use of rapid­acting insulin analogues increased from 2.6% to 46.5% and then to 95.6% (P <0.001). The rate of therapy with personal insulin pumps before pregnancy increased from 4.6% in the first, through 23.5% in the second, to 33.3% in the third period (P <0.001). Over the subsequent periods, we observed a decrease in hemoglobin A1c (HbA1c) levels at the first antenatal visit (from 7.4% ±1.6%, through 6.9% ±1.4%, to 7.0% ±1.4%; P = 0.06), as well as a decrease in HbA1c levels between the subgroups of women planning pregnancy (6.8% ±1.4%, 6.6% ±1.2%, and 6.1% ±0.8%, P = 0.015). CONCLUSIONS    In the years 1998-2012, an increase in the use of insulin analogues and personal insulin pumps by women with T1DM before conception was observed, and these changes were accompanied by a slight improvement in glycemic control, particularly among women planning pregnancy. The percentage of women planning pregnancy did not change during the follow­up.


Assuntos
Diabetes Mellitus Tipo 1/tratamento farmacológico , Bombas de Infusão/tendências , Insulina de Ação Curta/uso terapêutico , Cuidado Pré-Concepcional/tendências , Adulto , Glicemia , Feminino , Seguimentos , Humanos , Bombas de Infusão/estatística & dados numéricos , Cuidado Pré-Concepcional/estatística & dados numéricos , Gravidez , Gravidez em Diabéticas , Adulto Jovem
12.
Health Informatics J ; 21(3): 209-22, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24496443

RESUMO

Patient safety is a matter of major concern that involves every health professional. Nowadays, emerging technologies such as smart pumps can diminish medication errors as well as standardise and improve clinical practice with the subsequent benefits for patients. The aim of this paper was to describe the smart pump implementation process in a paediatric intensive care unit (PICU) and to present the most relevant infusion-related programming errors that were prevented. This was a comparative study between CareFusion Alaris Guardrails(®) and Hospira MedNet(®) systems, as well as a prospective and intervention study with analytical components carried out in the PICU of Gregorio Marañón General and Teaching Hospital. All intravenous infusions programmed with a pump in the eleven beds of the unit were analyzed. A drug library was developed and subsequently loaded into CareFusion and Hospira pumps that were used during a three month period each. The most suitable system for implementation was selected according to their differences in features and users' acceptance. Data stored in the pumps were analyzed to assess user compliance with the technology, health care setting and type of errors intercepted. The implementation process was carried out with CareFusion systems. Compliance with the technology was 92% and user acceptance was high. Vacation substitution and drug administration periods were significantly associated with a greater number of infusion-related programming errors. High risk drugs were involved in 48% of intercepted errors. Based on these results we can conclude that implementation of smart pumps proved effective in intercepting infusion-related programming errors from reaching patients. User awareness of the importance of programming infusions with the drug library is the key to succeed in the implementation process.


Assuntos
Sistemas de Liberação de Medicamentos/normas , Segurança de Equipamentos/enfermagem , Bombas de Infusão/estatística & dados numéricos , Unidades de Terapia Intensiva Pediátrica/tendências , Erros de Medicação/prevenção & controle , Avaliação da Tecnologia Biomédica , Sistemas de Liberação de Medicamentos/estatística & dados numéricos , Humanos , Bombas de Infusão/normas , Bombas de Infusão/tendências , Estudos Prospectivos
13.
J Pediatr Nurs ; 29(2): 143-51, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24707548

RESUMO

Patient safety and error reduction are essential to improve patient care, and new technology is expected to contribute to such improvements while reducing costs and increasing care efficiency in health care organizations. The purpose of this study was to assess the relationships among pediatric nurses' perceptions of smart infusion pump (SIP) technology, patient safety, and error reduction. Findings revealed that RNs' perceptions of SIP correlated with patient safety. No significant relationship was found between RNs' perceptions of SIP and error reduction, but data retrieved from the pumps revealed 93 manipulations of the pumps, of which error reduction was captured 65 times.


Assuntos
Atitude do Pessoal de Saúde , Bombas de Infusão/tendências , Infusões Intravenosas/instrumentação , Erros de Medicação/prevenção & controle , Recursos Humanos de Enfermagem Hospitalar/psicologia , Enfermagem Pediátrica , Humanos , Bombas de Infusão/normas , Segurança do Paciente
15.
Acta Neurol Scand ; 125(3): 199-205, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21651504

RESUMO

OBJECTIVES: The cerebrospinal fluid (CSF) infusion test is frequently used when selecting hydrocephalus patients for shunt surgery. Very little has been reported regarding adverse events. We present a prospective feasibility study. METHODS: Standardized devices for measuring CSF dynamics were built and 562 patients investigated: Needles were placed by lumbar puncture (LP). An automatic CSF infusion protocol was performed. Course of events during the investigation as well as adverse events were registered. RESULTS: Preoperative evaluation of normal-pressure hydrocephalus was the most common indication (63%), followed by evaluation of shunt function (23%) and intracranial pressure recordings (14%). The LP was successfully performed in all but nine cases with 24 patients (4.3%) reporting major discomfort. Ringer infusion was performed in 474 investigations, and a valid measurement of the outflow resistance was received in 439 (93%). During the infusion phase, 17 (4%) patients reported severe headache. Infusion volume was significantly higher in patients having subjective symptoms during the infusion phase compared with those without adverse events. During 269 preoperative CSF tap tests, six (2%) patients had severe headache. Post-investigational headache was reported by 83 (15%) patients at the 24-h follow-up. No serious adverse events were observed. CONCLUSION: Infusion testing was safe and without serious adverse events with a high rate of successful procedures. The investigation was associated with expected mild to moderate discomfort.


Assuntos
Pressão do Líquido Cefalorraquidiano/fisiologia , Derivações do Líquido Cefalorraquidiano/instrumentação , Hidrocefalia/diagnóstico , Hidrocefalia/cirurgia , Bombas de Infusão/tendências , Derivações do Líquido Cefalorraquidiano/efeitos adversos , Derivações do Líquido Cefalorraquidiano/normas , Testes Diagnósticos de Rotina/instrumentação , Testes Diagnósticos de Rotina/métodos , Estudos de Viabilidade , Humanos , Hidrocefalia/fisiopatologia , Bombas de Infusão/normas , Manometria/métodos , Estudos Prospectivos , Reprodutibilidade dos Testes
16.
Recent Pat Drug Deliv Formul ; 6(1): 66-72, 2012 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-22191697

RESUMO

Conventional drug delivery systems have little control over their drug release and almost no control over the effective concentration at the target site. This kind of dosing pattern may result in constantly changing, unpredictable plasma concentrations. Drugs can be delivered in a controlled pattern over a long period of time by the process of osmosis. Osmotic devices are the most promising strategy based systems for controlled drug delivery. They are the most reliable controlled drug delivery systems and could be employed as oral drug delivery systems. The present review is concerned with the study of drug release through asymmetric membrane capsule systems. When these systems are exposed to water, low levels of water soluble additive are leached from polymeric material i.e. the semipermeable membrane and the drug releases in a controlled manner over an extended period of time. Drug delivery from this system is not influenced by the different physiological factors within the gut lumen and the release characteristics can be predicted easily from the known properties of the drug and the dosage form. This patent review is useful in the knowledge of asymmetric membrane capsule osmotic pump for its application.


Assuntos
Sistemas de Liberação de Medicamentos/tendências , Bombas de Infusão/tendências , Membranas Artificiais , Osmose , Patentes como Assunto , Preparações Farmacêuticas/administração & dosagem , Animais , Cápsulas , Sistemas de Liberação de Medicamentos/métodos , Humanos , Osmose/fisiologia , Permeabilidade , Preparações Farmacêuticas/metabolismo
18.
Arq. bras. med. vet. zootec ; 62(2): 302-308, abr. 2010. tab
Artigo em Português | LILACS | ID: lil-551830

RESUMO

Avaliaram-se os efeitos da infusão contínua de propofol ou de etomidato sobre as variáveis intracranianas em cães nomocapneicos. Foram utilizados 20 cães adultos distribuídos aleatoriamente em dois grupos: grupo propofol (GP) e grupo etomidato (GE). Para o GP, os animais foram induzidos à anestesia com propofol (10mg/kg) e, ato contínuo, iniciaram-se a infusão do fármaco (0,6mg/kg/min) e a ventilação controlada. No GE, o etomidato foi usado para indução (5mg/kg) e manutenção empregando-se a dose de 0,5mg/kg/min nos 10 minutos iniciais e, em seguida, de 0,2mg/kg/min. Após 30 minutos da implantação do cateter de fibra óptica do monitor de pressão intracraniana (PIC) na superfície do córtex cerebral direito, realizaram-se as primeiras mensurações (M1) da PIC, da pressão de perfusão cerebral (PPC), da temperatura intracraniana (TIC), de temperatura corpórea (TC), da pressão arterial média (PAM) e da frequência cardíaca (FC). As demais mensurações ocorreram em intervalos de 20 minutos (M2, M3 e M4). O propofol e o etomidato não ocasionaram alterações significativas nas variáveis estudadas com exceção da TC e TIC. Concluiu-se que a infusão contínua desses fármacos em cães mantém a perfusão cerebral e a autorregulação cerebral. Cães anestesiados com etomidato apresentam efeitos adversos intensos e redução gradativa da temperatura corpórea e intracraniana.


The effects of total intravenous infusion of propofol or etomidate on intracranial variables in normocapneic dogs were evaluated. Twenty adult mongrel dogs were randomly allotted to: propofol group (GP) or etomidate group (GE). In GP animals, the propofol was used for induction (10mg/kg), followed by immediate continuous infusion of the drug (0.6mg/kg/min) and controlled ventilation. In GE dogs, the etomidate was used for induction (5mg/kg), followed by a continuous rate infusion (CRI) at 0.5mg/kg/min during the first ten minutes and, right after, it was changed to 0.2mg/kg/min. The initial measurement (M1) was recorded 30 minutes after the implant of the fiber optic catheter and, after that, every 20 minutes (M2, M3, and M4). The studied parameters were intracranial pressure (ICP), cerebral perfusion pressure (CPP), intracranial temperature (ICT), body temperature (BT), mean arterial pressure (MAP), and heart rate (HR). The propofol and etomidate did not change the studied variables, except the ICT and BT. It was concluded that the continuous infusion of these drugs maintains the cerebral perfusion and autoregulation. Dogs anesthetized with etomidate have adverse effects and body and intracranial temperature decrease.


Assuntos
Cães , Bombas de Infusão/efeitos adversos , Bombas de Infusão/tendências , Bombas de Infusão/veterinária , Etomidato/administração & dosagem , Etomidato , Propofol/administração & dosagem , Propofol , Cães
19.
Neurosurgery ; 66(3 Suppl Operative): 99-106; discussion 106-7, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20173578

RESUMO

INTRODUCTION: Patients who undergo posterior cervical spinal fusion procedures frequently experience significant postoperative pain. Use of a local anesthetic continuous infusion pump after surgery may improve these outcome variables. METHODS: After posterior cervical spine fusion procedures, 25 consecutive patients received continuous infusion of 0.5% bupivacaine into the subfascial aspects of the wound via an elastomeric pump. Data were collected prospectively by third party assessment using standard nursing protocols. This included numeric pain scores and opiate use over the first 4 postoperative days (PODs), length of hospitalization, and complications. In a retrospective analysis, we compared each study patient to a control patient who did not receive the continuous infusion of bupivacaine. Demographic variables and surgical procedure were similar among matched cases. RESULTS: Patients receiving continuous local anesthetic infusion used significantly less narcotics (P < .05) during the first 4 PODs: 24.4% on day 1, 34.1% on day 2, 53.5% on day 3, and 58.1% on day 4. A lower average pain score was observed among study patients on each POD (P < .05): 31.5% less on day 1, 13.0% on day 2, 24.0% on day 3, and 35.7% on day 4. Patients with the infusion device were discharged home earlier (POD 4.9 versus 6.7; P = .024) and demonstrated improvement in time to ambulation, first bowel movement, and discontinuation of the patient-controlled analgesia machine. No complications were associated with the device. CONCLUSION: Patients with the local anesthetic continuous infusion device required less narcotics and reported lower pain scores than control patients on each of the first 4 PODs. These results suggest that continuous infusion of local anesthetic into the paravertebral tissue during the immediate postoperative period is a safe and effective technique that achieves lower pain scores and narcotic use and improves multiple postoperative outcome variables.


Assuntos
Anestésicos Locais/administração & dosagem , Bupivacaína/administração & dosagem , Vértebras Cervicais/cirurgia , Bombas de Infusão Implantáveis/tendências , Dor Pós-Operatória/tratamento farmacológico , Fusão Vertebral/efeitos adversos , Atividades Cotidianas , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Feminino , Humanos , Bombas de Infusão/normas , Bombas de Infusão/tendências , Bombas de Infusão Implantáveis/normas , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Medição da Dor , Dor Pós-Operatória/prevenção & controle , Satisfação do Paciente , Estudos Prospectivos , Estudos Retrospectivos , Fusão Vertebral/métodos , Resultado do Tratamento , Adulto Jovem
20.
Zhongguo Yi Liao Qi Xie Za Zhi ; 33(4): 282-5, 2009 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-19938528

RESUMO

Through the investigation about the current infusion pumps, the development tendencies of the next generation infusion pumps/Syringe Pumps with regarding to human-factors, practicality and application under MRI (Magnetic resonance imaging) were put forward.


Assuntos
Bombas de Infusão/tendências , Seringas/tendências , Imageamento por Ressonância Magnética
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