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Central venous catheter (CVC) placement is commonly performed in the emergency department (ED), but traditional confirmation of placement includes chest radiograph.
This manuscript details the use of point-of-care ultrasound (POCUS) to confirm placement of a CVC and evaluate for postprocedural complications.
CVC access in the ED setting is an important procedure. Traditional confirmation includes chest radiograph. POCUS is a rapid, inexpensive, and accurate modality to confirm CVC placement and evaluate for postprocedural complications. POCUS after CVC can evaluate lung sliding for pneumothorax and the internal jugular vein for misdirected CVC. A bubble study with POCUS visualizing agitated saline microbubbles within the right heart can confirm venous placement.
POCUS can rapidly and reliably confirm CVC placement, as well as evaluate for postprocedural complications. Knowledge of this technique can assist emergency clinicians.
POCUS can rapidly and reliably confirm CVC placement, as well as evaluate for postprocedural complications. Knowledge of this technique can assist emergency clinicians.
Globally, non-medical heroin use is generating significant public health and social harms, and drug policy about heroin is a controversial field that encompasses many complex issues. Policy responses to illegal heroin markets have varied from militarized eradication of the opium poppy and harsh punishment of users, to more tolerant harm reduction approaches with decriminalized possession and use.
This paper reports the outcomes of a multi-criteria decision analysis (MCDA) on four generic regulatory regimes of heroin prohibition, decriminalisation, state control and free market. Invited experts on drug harms, addiction, criminology and drug policy developed a comprehensive set of 27 policy outcome criteria against which these drug policy regimes were assessed.
State control of heroin was identified as the preferred policy option although other policy regimes scored better on specific outcome criteria. The free market model scored better than decriminalisation, with absolute prohibition scoring worst on every criterium. The ranking of the regimes was robust to variations in the criterion-specific weights.
The implications of these findings for the development of future policy responses to heroin and opioids generally are discussed in detail. Despite increasing overdose deaths and an opioid epidemic in North America, prohibition remains the predominant policy approach to heroin regulation at present. It is hoped that the current paper adds to the discussion of finding a valid regulatory alternative.
The implications of these findings for the development of future policy responses to heroin and opioids generally are discussed in detail. BMS-345541 Despite increasing overdose deaths and an opioid epidemic in North America, prohibition remains the predominant policy approach to heroin regulation at present. It is hoped that the current paper adds to the discussion of finding a valid regulatory alternative.
The aim of this study is to analyze the expression of the main oxidant scavenger superoxide dismutase (EC-SOD), its main binding protein Fibulin-5 and several oxidative and nitrosative-derived products in the lung of COPD patients and controls.
Lung tissue samples from 19 COPD patients and 20 control subjects were analyzed. The architecture of elastic fibres was assessed by light and electron microscope histochemical techniques, and levels of EC-SOD and fibulin-5 were analyzed by immunohistochemistry and RT-PCR. The impact of oxidative stress on the extracellular matrix was estimated by immunolocalization of 4-hydroxynonenal (4-HNE), malondialdehyde (MDA) and 3-nitrotyrosine (3-NYT) adducts.
Alveolar walls of COPD patients exhibited abnormal accumulations of collapsing elastic fibres, showing a pierced pattern in the amorphous component. The semiquantitative analysis revealed that COPD patients have a significantly reduced expression of both EC-SOD and fibulin-5 (0.59±0.64 and 0.62±0.61, respectively) in alveolar, bronchiolar and arteriolar walls compared to control subjects (1.39±0.63 and 1.55±0.52, respectively, p<0.05). No significant changes in mRNA levels of these proteins were observed between groups. Among the oxidation markers, malondialdehyde was the best in distinguishing COPD patients.
COPD patients show a reduced expression of EC-SOD and fibulin-5 in the lung interstitium. Paralleling the reduction of EC-SOD levels, the decrease of fibulin-5 expression in COPD lungs supports the hypothesis of an impaired pulmonary antioxidant response in COPD patients.
COPD patients show a reduced expression of EC-SOD and fibulin-5 in the lung interstitium. Paralleling the reduction of EC-SOD levels, the decrease of fibulin-5 expression in COPD lungs supports the hypothesis of an impaired pulmonary antioxidant response in COPD patients.Primary central nervous system lymphoma is one of the most infrequent brain tumours, accounting for 3% of primary central nervous system neoplasms. In addition to its low prevalence, clinical presentation is usually nonspecific, leading to diagnostic delay. Intraocular involvement occurs in 15% of cases, and disease onset in this location is even rarer. We present a case of a patient with intermediate uveitis as the first clinical manifestation of this neoplasm.We present an illustrated clinical case with multimodal representation of a congenital hypertrophy of the depigmented retinal pigment epithelium (CHRPE) associated with acquired retinoschisis and microcystic degeneration (MD) in a 64-year-old hypermetropic, asymptomatic woman. Retinography showed a whitish lesion with pigmented edges, slightly raised, accompanied by a lower area with a microcystic pattern. The complementary tests carried out allowed to determine a well-defined diagnosis of exclusion. B-mode ultrasound showed a smooth, cupuliform and cystic elevation characteristic of acquired retinoschisis, and fluorescein angiography could rule out the presence of a vascular tumor. The hypoautofluorescence of the lesion determined the depigmentation of the CHRPE, while the slight perilesional hyperautofluorescence corresponded to the associated retinoschisis and DM. This is the first case described in the literature of an acquired retinoschisis associated with CHRPE.
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