Extravasación intraabdominal de líquido posterior a artroscopía de cadera: Reporte de un caso / Intraabdominal fluid extravasation after hip arthroscopy: Case report

Intraabdominal fluid extravasation (IAFE) is a rare complication of hip arthroscopy which has a wide range of clinical presentations, from mild abdominal distention to abdominal compartment syndrome and cardiorespiratory arrest. There are few detailed reports of cases in literature, therefore, considering risk factors, high pathological suspicion and training in ultrasound are key points to prevent complications and health costs. In this report, the case of a 29 year old male patient with severe abdominal pain during the immediate postoperative period of an arthroscopic hip surgery is presented, which led to a review of the literature on the subject.

La extravasación intraabdominal de líquido es una complicación poco frecuente de la artroscopia de cadera que presenta un amplio rango de manifestaciones clínicas, desde leve distensión abdominal hasta síndrome compartimental y paro cardiorrespiratorio. Hay escasos reportes de casos en la literatura, por lo que la alta sospecha considerando factores de riesgo y el ultrasonido son claves para prevenir sus complicaciones y costos asociados. En este reporte, se presenta el caso de un paciente masculino de 29 años con dolor abdominal intenso durante el postoperatorio inmediato de una artroscopia de cadera, lo que llevó a una revisión de la literatura sobre el tema.

Phlebitis and infiltration: vascular trauma associated with the peripheral venous catheter / Flebite e infiltração: traumas vasculares associados ao cateter venoso periférico / Flebitis e infiltración: traumas vasculares asociados al catéter venoso periférico

ABSTRACT Objective: to determine the incidence rate and risk factors for the nursing-sensitive indicators phlebitis and infiltration in patients with peripheral venous catheters (PVCs). Method: cohort study with 110 patients. Scales were used to assess and document phlebitis and infiltration. Socio-demographic variables, clinical variables related to the PVC, medication and hospitalization variables were collected. Descriptive and inferential analysis and multivariate logistic models were used. Results: the incidence rate of phlebitis and infiltration was respectively 43.2 and 59.7 per 1000 catheter-days. Most PVCs with these vascular traumas were removed in the first 24 hours. Risk factors for phlebitis were: length of hospital stay (p=0.042) and number of catheters inserted (p<0.001); risk factors for infiltration were: piperacillin/tazobactan (p=0.024) and the number of catheters inserted (p<0.001). Conclusion: the investigation documented the incidence of nursing-sensitive indicators (phlebitis and infiltration) and revealed new risk factors related to infiltration. It also allowed a reflection on the nursing care necessary to prevent these vascular traumas and on the indications and contraindications of the PVC, supporting the implementation of the PICC as an alternative to PVC.

RESUMO Objetivo: determinar a taxa de incidência e os fatores de risco para os indicadores sensíveis aos cuidados de Enfermagem, flebite e infiltração, em pacientes portadores de cateteres venosos periféricos (CVPs). Método: estudo de coorte com 110 pacientes. Utilizou-se escalas para avaliar e documentar flebite e infiltração. Recolheram-se variáveis sociodemográficas, clínicas, relativas ao CVP, à medicação e à internação, bem como efetuou-se análise descritiva e inferencial, e modelação logística multivariada. Resultados: a taxa de incidência de flebite e infiltração foi de 43,2 e 59,7 por mil cateteres-dia, respectivamente. A maioria dos CVPs foi removida nas primeiras 24h devido a esses traumas vasculares. Foram fatores de risco para flebite o tempo de internação (p=0,042) e o número de cateteres inseridos (p<0,001), sendo para infiltração a piperacilina/tazobactan (p=0,024) e o número de cateteres inseridos (p<0,001). Conclusão: a investigação documentou a incidência de indicadores sensíveis aos cuidados de Enfermagem (flebite e infiltração) e evidenciou novos fatores de risco relacionados à infiltração. Possibilitou, também, uma reflexão sobre os cuidados de Enfermagem para prevenir esses traumas vasculares, as indicações e as contraindicações do CVP, tendo subsidiada a implementação do PICC nas práticas de Enfermagem como alternativa ao CVP.

RESUMEN Objetivos: determinar la tasa de incidencia y los factores de riesgo para los indicadores sensibles a los cuidados de Enfermería, flebitis e infiltración, en pacientes portadores de catéteres venosos periféricos (CVPs). Método: se trata de un estudio de cohorte entre 110 pacientes. Se utilizaron escalas para evaluar y documentar la flebitis y la infiltración. Se recogieron variables sociodemográficas y clínicas, relativas al CVP, a la medicación y a la internación. Se realizó un análisis descriptivo e inferencial, y modelación logística multivariada. Resultados: la tasa de incidencia de flebitis e infiltración fue de 43,2 y 59,7 por mil catéteres-día, respectivamente. Se removió la mayoría de los CVPs en las primeras 24 horas debido a dichos traumas vasculares. Los factores de riesgo para la flebitis fueron: el tiempo de internación (p=0,042) y el número de catéteres insertados (p<0,001); para la infiltración: la piperacilina/tazobactan (p=0,024) y el número de catéteres insertados (p<0,001). Conclusión: la investigación documentó la incidencia de indicadores sensibles a los cuidados de Enfermería (flebitis e infiltración) y evidenció nuevos factores de riesgo relacionados con la infiltración. Posibilitó, también, una reflexión sobre los cuidados de Enfermería para prevenir los traumas vasculares y sobre las indicaciones y contraindicaciones del CVP, con la implantación del PICC auxiliando en las prácticas de Enfermería como alternativa del CVP.

Extravasación de medios de contraste intravenosos: lo que todo radiólogo debe saber / Extravasation of intravenous contrast media: what every radiologist should know

The accidental release of intravenous contrast media (ICM) from the intravascular compartment to the adjacent soft tissues is one of the most frequent complications of the injection procedure in multi-slice CT (MSCT). Its incidence is low, occurring in between 0.1 and 0.9 percent of patients undergoing these studies. Affected areas usually present mild lesions characterized by swelling and local erythema and that tend to resolve spontaneously without sequelae. However, serious lesions may also occur, such as compartment syndrome. For these reasons it is essential to know patients at risk, precautionary measures, specific technical factors, early diagnosis and appropriate management of this complication. These elements constitute basic skills that every radiologist must possess.

La salida accidental de medio de contraste intravenoso (MCI) desde el compartimento intravascular hacia los tejidos de partes blandas adyacentes es una de las complicaciones más frecuentes del procedimiento de inyección en tomografía computada multicorte (TCMC). Su incidencia es baja, ocurre entre el 0,1 y el 0,9 porciento de los pacientes que se someten a estos estudios. Las zonas afectadas generalmente presentan lesiones leves caracterizadas por aumento de volumen y eritema local que tienden a remitir espontáneamente sin secuelas. Sin embargo, también pueden ocurrir lesiones graves, como un síndrome compartimental. Por estas razones es fundamental conocer los pacientes en riesgo, las medidas de precaución, los factores técnicos específicos, el diagnóstico precoz y el manejo oportuno de esta complicación. Estos elementos constituyen competencias básicas que todo radiólogo debe poseer.

Relationship between the size of patency file and apical extrusion of sodium hypochlorite.

Background: Sodium hypochlorite (NaOCl) is the most widely used endodontic irrigant because of its excellent antimicrobial, organic tissue dissolving, and lubricating properties. However, it is highly cytotoxic to the periapical tissues. Aim: This study evaluated in vitro the extrusion of 5.25% NaOCl through the apical foramina of mesiobuccal (MB) root canals of maxillary first molars in two experimental conditions: Before apical debridement and after apical debridement with different instrument sizes to ensure direct access to the apical foramen (apical patency). Materials and Methods: Coronal accesses were prepared in 17 teeth and the apical foramina of the distobuccal and palatal root canals were sealed. The teeth were held in acrylic receptacles with the roots turned upwards to reproduce their position in the maxillary dental arch. The receptacles were filled with a starch/KI solution (a reagent that changes its color to blue after contacting NaOCl) covering the roots. The experiment had two phases: P1: Irrigation of the MB canals with 5.25% NaOCl without previous establishment of apical patency; P2: Canal irrigation after use of size 10 K-file and size 15 Flexofile as patency files. Only specimens with no NaOCl extrusion in P1 were assigned to P2. NaOCl was delivered pressureless at the canal entrance. The moment that the starch/KI solution contacted NaOCl was captured on digital photographs. Results and Conclusions: There was no NaOCl extrusion in nine specimens in P1, but all of these teeth had irrigant extrusion in P2. The 5.25% NaOCl used as an endodontic irrigant showed great capacity to extrude beyond both intact and small-sized apical foramina of MB root canals of maxillary first molars.

Evaluation of the apical infiltration after root canal disruption and obturation

The aim of this study was to evaluate two root canal filling techniques used in teeth that had their apical foramen disrupted and compare the apical infiltration with an ideal clinical situation. Twenty-seven freshly extracted single-rooted teeth were selected and radiographed to confirm the existence of a single and straight root canal. The crowns were removed at a mean distance of 11 mm from the apex. The teeth had the root canals instrumented and were randomly assigned to 3 groups (n=9): ND group - root canals were filled using the lateral compaction technique and no disruption was performed; DRF group - the apical constriction was disrupted by advancing a #40 K-file 1 mm beyond the original working length, the canals were reinstrumented to create an apical ledge at 1 mm from the apical foramen and were obturated with a master gutta-percha cone with same size as the last file used for reinstrumentation; DF group - the teeth had the apical constriction disrupted and the canals were obturated with a master gutta-percha cone that fit at 1 mm from the apex. The teeth were submitted to dye leakage test with Rhodamine B for 7 days, using vaccum on the initial 5 min. The teeth were sectioned longitudinally and the leakage was measured in a linear fashion from apex to crown. There was no statistically significant difference (p>0.05) between the groups that had the apical foramen disrupted (DF, DRF), but significant difference was found between the disrupted groups and the non-disrupted one (p<0.01). In conclusion, none of the evaluated techniques was able to prevent apical infiltration, so working length so the working length determination has to be established and maintained carefully.

Extravasation of the contrast in the unused urinary bladder.

Ruptured bladder or extravasation from the bladder is almost always associated with trauma. Spontaneous extravasation is extremely rare with only a few reported cases. All those reported extravasations occurred in the patients diagnosed with end stage renal disease (ESRD) and were self limiting conditions. During the one-year period of 2001, voiding cystourethrography (VCUG) of 115 patients were performed in our institution with various indications. The authors found 3 cases with extravasation of contrast from the bladder during VCUG. All extravasations were occurred in ESRD patients and the VCUG was performed as part of the routine investigation prior to renal transplantation. The presented cases shared a similar observation of 1) no traumatic catheterization, 2) only minimal and self limiting extravasation and 3) no immediate or delayed symptom associated with extravasation. The cause and mechanism of leakage remain uncertain. Hypertonicity and mucosal changes within the unused bladder were purposed as probably the two main causes of extravasation.

Avaliação da instalação e da utilização de sistemas para acesso venoso central totalmente implantável em mulheres com câncer / Evaluation of installation and use of totally implanted central venous access system in women with cancer

O objetivo deste estudo foi avaliar o índice de complicações de 86 sistemas de cateter venoso central totalmente implantável (CVTI) em mulheres com câncer, sua associação com idade, sede da neoplasia primária, momento da instalação, tipo de anestesia, antibióticoðprofilaxia, veia cateterizada e índice de massa corporal (IMC), utilizandoðse o teste exato de Fisher. Foram atendidas entre maio/1991 e dezembro/1997 e seguidas até 1999. Apresentaram idade média de 51 anos e 81 por cento tinham carcinoma mamário. A principal indicação foi quimioterapia. Cateterizouðse, em 80 por cento dos casos, a veia jugular externa. O tempo médio de utilização foi 316 (34ð937) dias. Seis CVTI (7 por cento) foram retirados em até 35 dias devido a complicações na utilização (cinco extravasamentos, quatro infecções e duas obstruções). Não encontramos associações significativas entre as complicações e as variáveis analisadas. Ao final, havia 30 sistemas em utilização. De acordo com a literatura, esses resultados mostraram índices de complicações aceitáveis e tempo de utilização satisfatório, suportando a continuação da indicação desse método para uso em mulheres com câncer

Informe de un caso con intravasación linfática de la sustancia de contraste durante la histerosalpingografía / Lymphatic intravasation of contrast medium during hysterosalpingography: report of a case

Se muestran imágenes radiográficas correspondientes a una paciente que presentó una intravasación linfática extensa de la sustancia de contraste oleosa durante una histerosalpingografía (HSG). Se discuten y comentan las posibles causas y factores favorecedores de esta infrecuente complicación de la HSG, en la paciente, y se muestran figuras de una nueva HSG realizada 8 meses después de la complicación en la que se utilizó esta vez contraste hidrosoluble para verificar la permeabilidad tubaria