37 research outputs found

    Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

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    Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat

    Diffusion MRI of Small Ischemic Brain Lesions: Technical aspects, clinical experiences and diagnostic criteria.

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    Purpose: To compare the visualization of small ischemic brain lesions using diffusion using diffusion-weighted (DW) MRI and conventional imaging, with special regard to diagnostic efficiency. Imaging features of lesions of different ages, diagnostic limitations and technical principles were also investigated. Methods: All studies were performed with the same 1.5 T MR scanner. In the first study the diagnostic efficiencies of a conventional spin-echo (SE) PD and T2-weighted sequence, an echo-planar (EP) DW sequence and a DW conventional SE sequence in detecting acute stroke lesions in 27 patients were compared. In the second study imaging features of small ischemic lesions from 21 of the 27 patients in the first study were observed until the lesions became chronic. In the third study 18 preexisting chronic lacunar infarcts were selected from the EP DW images in the first study. The lowest value of b which led to them all being invisible in the DW images was determined. In the fourth study three EP DW acquisitions with and without ECG triggering were obtained in 6 healthy volunteers. Maps of the apparent diffusion coefficient (ADC) were calculated from all the acquisitions. The value of the ADC was measured in the same four positions on each map. The dependence of the measured values of ADC on ECG triggering was evaluated. In the fifth study 12 patients with brain metastases were examined with an EP DW sequence and a T2-weighted sequence. The features of the metastases were compared with the diagnostic criteria commonly used for acute and subacute small infarcts. Results and conclusions: An EP DW sequence is very efficient in detecting new ischemic lesions. A DW SE sequence performs well but it requires a perfectly cooperative patient. A conventional PD and T2-weighted sequence has low sensitivity and specificity. Ten of 21 small ischemic lesions exhibited persisting high signals in the DW images and 2 of them exhibited a decrease in ADC two months after the stroke. All these lesions became invisible and showed a high ADC at an examination after 1 year or more. A value of b = 1000•10E06 s/m2 was sufficient to make chronic lacunar infarcts invisible in DW images when the echo time was no longer than 120 ms. Some metastases have imaging features in common with small acute and subacute ischemic lesions when a standard MR protocol for acute stroke is used

    Diffusion-weighted imaging of brain metastases: their potential to be misinterpreted as focal ischaemic lesions.

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    Small focal ischaemic brain lesions are said to be easy to identify in the acute stage and to differentiate from older lesions using diffusion-weighted imaging (DWI). Brain metastases are common and the aim of this study was to evaluate the risk of misinterpretation as ischaemic lesions in a standard MRI protocol for clinical stroke. Of 26 patients investigated with MRI for possible metastases, 12 did have metastatic brain lesions, including most of the common tumours. On a 1.5 tesla imager, we obtained DWI, plus T2- and T1-weighted images, the latter before and after triple-dose contrast medium. Well-circumscribed brain lesions with a decreased apparent diffusion coefficient and a slightly or moderately increased signal on T2-weighted images were found in patients with metastases from a small-cell bronchial carcinoma and a pulmonary adenocarcinoma. The same features were also found in metastases from a breast carcinoma but the lesions were surrounded by oedema. With a standard DWI protocol, the features of common brain metastases may overlap with those of small acute and subacute ischaemic lesions

    Progressiv avslappning : instruktioner

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    Instruktioner för tränare och till patient/klient för progressive muskulär (lång avslappning) respektive tankemässig avslappning (kort version). Kan läsas in på ljudband av behandlaren och klienten kan bedriva egen träning.This paper contains instructions for progressive relaxation. Behandlingsmetoden med progressive muskulär avslappning formulerades först i boken "Progressive relaxation" av läkaren Edmund Jacobson 1929. Flera senare böcker av denne finns. I Monica Geijers version spänns ett flertal muskelgrupper samtidigt i början av den långa versionen. </p

    Diffusion-weighted MRI findings in patients with capsular warning syndrome

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    Background and Purpose: The 'capsular warning syndrome' (CWS) of recurrent stereotyped episodes of motor or sensory dysfunction is clinically well recognized, and is associated with a high risk of imminent lacunar infarction with permanent deficits resembling those of CWS. However, the pathophysiology of CWS has not been well characterized. We report a clinicoanatomic correlation with MR imaging studies in the acute and chronic phases in patients with CWS. Material and Methods: Between April 1997 and March 2001, we prospectively studied 8 patients, mean age 73.3 years, presenting with 4 - 17 motor or sensorimotor transient ischemic attacks ( TIAs; duration 2 - 90 min) up to 3 days after onset of the first episode. Four patients were free of symptoms between the attacks and had no residua, whereas 4 patients developed a pure motor or sensorimotor stroke within 1 - 3 days after symptom onset. Diffusion-weighted echoplanar MRI (DWI) and T-2-weighted MRI studies were performed within 1 week after symptom onset and were repeated 1 - 2 months later. Results: Seven of the 8 patients had an appropriate lesion on DWI in the acute phase. DWI abnormalities in the 3 patients with TIAs were 4 - 10 mm in diameter and confined to the lateral thalamus or medial globus pallidus without involving the internal capsule, whereas 4 patients who developed a stroke had abnormalities localized to the putamen extending to corona radiata ( 3 patients), or the pontomesencephalic junction ( 1 patient). All 6 patients who underwent follow-up MRI had an infarct on T-2-weighted images corresponding to, but usually smaller than, the acute phase DWI abnormality. Conclusions: Small infarcts in the basal ganglia or the pons, close to central motor pathways, appear to be the primary lesion in CWS. The pathophysiology of CWS is complex, and may involve hemodynamic mechanisms in penetrating arterial territories, as well as molecular mechanisms, such as peri-infarct depolarizations affecting adjacent motor pathways. Copyright (C) 2004 S. Karger AG, Basel

    Persistent high signal on diffusion-weighted MRI in the late stages of small cortical and lacunar ischaemic lesions

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    Diffusion-weighted imaging (DWI) is very sensitive to early brain infarcts. However, the late stages have been insufficiently studied. Infarcts in small vessel disease are often multiple and of different ages, and differentiation between new and old lesions might be difficult. We have therefore studied the change with time in DWI of small (< 3 ml) ischaemic lesions. We imaged 21 patients with an acute lacunar syndrome and a lesion visible on early DWI. They all had three MRI examinations 12-58 h (early), 7-16 and 54-144 days after the onset of stroke; 10 patients with high DWI signal on the third examination had a fourth examination 12-28 months after the stroke. MRI was performed at 1.5 T, using echo-planar DWI with 7 b-values from 0 to 1200 x 10(6) s/m2 and conventional T2-weighted imaging. After 7-16 days 18 of 21 lesions gave high signal on DWI, and 12/16 measurable lesions had a decreased apparent diffusion coefficient (ADC). After 54-144 days ten lesions still gave high DWI signal and two still had an ADC below normal. On the fourth examination there was no remaining high DWI signal and all ADC were higher than normal
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