Research progress of evaluation tool of difficult intravenous access / 中国实用护理杂志

Difficult intravenous access (DIVA) is common in intravenous insertion, appropriate DIVA management is based on precise evaluation.The development and application of DIVA assessment tool provides a reference for medical staffs to assess the patient's peripheral venous conditions and manage effectively. The DIVA assessment tools for children, adult and patients received chemotherapy were reviewed in this paper to provide the reference for evaluation,management and nursing practice of DIVA.

Feasibility study of a novel intraosseous device in adult human cadavers.

Background & objectives: Intraosseous (IO) access is an alternative to difficult intravenous (iv) access during emergency clinical situations. Existing IO solutions are expensive, require power supply and trained manpower; limiting their use in resource constrained settings. To address these limitations, a novel IO device has been developed. The objectives of this study were to evaluate functionality and safety of this device in adult human cadavers. Methods: The ability of the IO device to penetrate the proximal and/or distal tibia was evaluated in three adult cadavers. Subjective parameters of loss of resistance, stable needle hold, easy needle withdrawal and any damage to the device were evaluated during the study. The insertion time was the objective parameter measured. Four sets of radiographs per insertion confirmed the position of the needle and identified complications. Results: A single physician performed 12 IO access procedures using the same device. Penetration of proximal and/or distal tibia was achieved in all instances. It was successful in the first attempt in eight (66.7%) and during second attempt in the remaining. The mean time to insertion was 4.1 ± 3.1 sec. Appropriate insertion of needle in the intra-medullary space of bone was confirmed with radiological examination in 10 (83.3%) insertions. In two occasions after penetrating the cortical layer of bone, the device overshot the intra-medullary space, as detected by radiological examination. Device got bent during insertion in one instance. There was no evidence of needle breakage or bone fracture. The needle could be withdrawn effortlessly in all instances. Interpretation & conclusions: The novel IO device could successfully penetrate the adult cadaver bones in most cases. Further studies are needed to confirm these results on a large sample.

Surgical placement and management of jugular vascular access ports in dogs and cats: description of technique / Implantación quirúrgica y gestión de catéter venoso central en la vena yugular de perros y gatos: descripción de la técnica / Implante cirúrgico e manejo de cateter venoso central na veia jugular de cães e gatos: descrição da técnica

Background: vascular access ports (VAPs) are designed to allow repeated access to the vascular system with minimum patient distress. Objective: to describe the surgical technique, care and complications of jugular VAPs currently used at the Veterinary Oncology Service of the University of Florida Small Animal Hospital. Conclusion: the VAPs can remain in site for long terms (months) with minimum complications, and its placement is a reliable technique that should be considered by veterinarians, particularly for a longterm treatment.

Antecedentes: los catéteres venosos centrales (VAPs) están diseñados para permitir el acceso repetido al sistema vascular con las mínimas molestias para el paciente. Objetivo: describir la técnica quirúrgica, atención de mantenimiento y las complicaciones de los VAPs en vena yugular, que se utiliza actualmente en el Veterinary Oncology Service en la University of Florida Small Animal Hospital. Conclusión: el VAP puede permanecer en el lugar durante períodos largos (meses) con pocas complicaciones, y su implantación quirúrgica debe ser considerada por los veterinarios, en particular para el tratamiento a largo plazo.

Antecedentes: os cateteres venosos centrais (VAPs) permitem acessos repetidos ao sistema vascular com mínimo desconforto ao paciente. Objetivo: descrever a técnica cirúrgica, cuidados de manutenção e complicações dos VAPs de veia jugular utilizados atualmente no Serviço de Oncologia Veterinária do Hospital Veterinário de Pequenos Animais da Universidade da Florida. Conclusão: o VAP pode permanecer no local por longos períodos (meses) com poucas complicações. O implante cirúrgico descrito no presente trabalho deve ser considerado pelos médicos veterinários, particularmente para tratamentos de longa duração.

Incidence and Risk Factors of Infectious Complications Related to Implantable Venous-Access Ports

OBJECTIVE: The purpose of this study was to determine the incidence and risk factors of infections associated with implantable venous access ports (IVAPs). MATERIALS AND METHODS: From August 2003 through November 2011, 1747 IVAPs were placed in our interventional radiology suite. One hundred forty four IVAPs were inserted in patients with hematologic malignancy and 1603 IVAPs in patients with solid tumors. Among them, 40 ports (23 women and 17 men; mean age, 57.1 years; range, 13-83) were removed to treat port-related infections. We evaluated the incidence of port-related infection, patient characteristics, bacteriologic data, and patient progress. Univariable analyses (t test, chi-square test, and Fisher's exact test) and multiple logistic regression analyses were used to determine the risk factors for IVAP related infection. RESULTS: Overall, 40 (2.3%) of 1747 ports were removed for symptoms of infection with an incidence rate of 0.067 events/1000 catheter-days. According to the univariable study, the incidences of infection were seemingly higher in the patients who received the procedure during inpatient treatment (p = 0.016), the patients with hematologic malignancy (p = 0.041), and the patients receiving palliative chemotherapy (p = 0.022). From the multiple binary logistic regression, the adjusted odds ratios of infection in patients with hematologic malignancies and those receiving palliative chemotherapy were 7.769 (p = 0.001) and 4.863 (p = 0.003), respectively. Microorganisms were isolated from 26 (65%) blood samples, and two of the most causative organisms were found to be Staphylococcus (n = 10) and Candida species (n = 7). CONCLUSION: The underlying hematologic malignancy and the state of receiving palliative chemotherapy were the independent risk factors of IVAP-related infection.

Acesso venoso pela via intra-óssea em urgências médicas: [revisão] / Venous access by intraosseous access in medical urgencies: [review]

JUSTIFICATIVA E OBJETIVOS: Inicialmente introduzida em 1922, a técnica de acesso intra-ósseo foi extensamente utilizada até os anos de 1940 e revisada nos anos 1980. Considerando sua recomendação em diretrizes de reanimação cardiopulmonar, o objetivo deste estudo foi apresentar uma revisão histórica e principais aspectos clínicos sobre acessos intra-ósseos ao sistema venoso. CONTEÚDO: Foi realizada uma busca por artigos originais através da palavra-chave "acesso intra-ósseo" na base de artigos MedLine (1950 a janeiro de 2008). Adicionalmente, referências destes artigos, capítulos de livros e artigos históricos foram avaliados para esta revisão. Portais na internet de fabricantes de equipamentos para punção intra-óssea também foram consultados. Foram identificados e revisados 231 artigos, e o presente estudo condensou os principais resultados descritos. Foram considerados ensaios clínicos na língua inglesa, estudos retrospectivos e artigos de revisão. CONCLUSÕES: O acesso intra-ósseo é usado principalmente para garantir rapidamente um acesso venoso quando há algum retardo ou dificuldade para acesso venoso periférico. Consiste em técnica de simples aprendizado e suas complicações são inferiores a 1 por cento. A maior parte dos fármacos utilizados em emergências pode ser administrada por esta via em suas doses rotineiras. O acesso intra-ósseo pode ser usado com segurança em diferentes locais de punção, tanto em adultos quanto crianças. Este acesso pode ser satisfatoriamente utilizado para coleta sanguínea objetivando análise de gases e bioquímica sanguínea, infusão de sangue e hemoderivados, solução fisiológica para reposição volêmica em estados de choque, parada cardiorrespiratória e outras emergências, quando o acesso venoso convencional não pode ser rapidamente efetivado.

BACKGROUND AND OBJECTIVES: First introduced in 1922, the intraosseous access technique was extensively used in the 1940's and revised in the 1980's. Since this technique is recommended in actual cardiopulmonary resuscitation guidelines, the authors present an historical and clinical review of intraosseous access to the venous system. CONTENTS: The MedLine (1950 to January 2008) database was searched for pertinent abstracts, using the key term intraosseous access. Additional references and historical papers were obtained from the bibliographies of the articles reviewed. Manufacturer Web sites were used to obtain information about intraosseous venous (IO) insertion devices. Were identified and reviewed 231 articles, and this present article condensed the mainly the principal findings described. All available English-language clinical trials, retrospective studies and review articles describing IO drug administration were reviewed. CONCLUSIONS: The intraosseous access is used mainly to gain rapid access to the intravenous system when there is delay in obtaining the latter one. The technique is simple to learn. The complications rate is less than 1 percent. Most emergency drugs can be administered in the same doses used by intravenous routes. Bone access can be used in children and adults of any age in several sites. This access can be used satisfactorily to draw blood for cross-matching, blood gases and blood chemistries and emergency infusion of blood and its derivatives, saline solutions for volume replacement in shock, cardiac arrest and emergencies when an intravenous access cannot be made readily available.

The Effect of Inhalation Induction with Sevoflurane on Postoperative Emotional Changes in Children / 대한마취과학회지

BACKGROUND: This study was designed to determine whether sevoflurane induction without painful procedures, such as intravenous catheter (IVC) insertion, has any emotional benefit compared with intravenous induction using a prepared IVC. METHODS: Children undergoing outpatient surgery were randomized to 2 groups: inhalation induction with sevoflurane (sevoflurane group, n = 24) or intravenous induction with thiopental sodium (control group, n = 21). In the sevoflurane group an IVC was inserted after chidren had been anesthetized by sevoflurane inhalation, while in the control group, an IVC was placed in the preoperative holding area. Total time and the number of IVC insertion attempts were recorded in both groups. Anesthesia times, agitation scores and the views of medical staff on technique benefits were also noted. Patients and parents were interviewed the following day. RESULTS: Time required for IVC insertion was significantly greater in the control group. No statistically significant differences were found in terms of; the number of attempts required for IVC insertion, anesthesia induction times, extubation times, recovery times, or agitation scores. Though interviews with patients and parents produced similar results in both groups, medical staff satisfaction levels were significantly higher in the sevoflurane group. CONCLUSION: Inhalation induction with sevoflurane had no beneficial effect on postoperative emotional changes. However, this method provides benefit to both children and medical staff because it avoids stressful, time-wasting, painful experiences.