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81.
As the United States' population continues to age and as cosmetic procedures have become more accepted, adults from all age groups and socioeconomic brackets are seeking improvement in facial aging. Ideal correction includes improvement in the quality of skin, improvement in wrinkles, correction of soft tissue descent, removal of skin excess, and volume restoration. The physiologic rather than the chronologic age is the most important factor in determining the advisability of cosmetic surgery in elderly people. In addition to traditional cosmetic surgery procedures, the elderly population is amenable to several shortcuts, minimizing operative time and post-operative recovery. These can be performed alone or in combination with traditional procedures, improving the stigmata of facial aging and enhancing quality of life.  相似文献   
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Objectives: We test associations of frequency of performing three types of socially productive activities (voluntary work, informal help and caring for a person) with depressive symptoms in older people. Are depressive symptoms negatively associated with frequency in all three types or rather in those activities that are characterized by a high degree of autonomy and perceived control?

Methods: Data on social activities and frequency of performance were collected in the frame of the annual follow-up of the French GAZEL cohort study in 2005. Depressive symptoms were measured by the CES-D scale. Perceived control was assessed by two items of a quality of life measure (CASP-19). Total of 14477 respondents aged 52–66 years completed a standardized questionnaire. Linear regression models were calculated adjusting for important confounders including self-rated health assessed during the previous year.

Results: In activities characterized by high autonomy (in particular voluntary work) a negative association of frequency with depressive symptoms was observed, whereas the reverse effect was found in the type of activity with low autonomy (care for a person). Perceived control mediated in part the association of frequency of activity with depressive symptoms.

Conclusion: Being often socially productive in early old age may contribute to well-being to the extent that autonomy and perceived control are given.  相似文献   

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Objectives

Susceptibility-weighted magnetic resonance imaging (MRI) sequences may demonstrate various signal intensities of draining veins in cases of high-flow vascular malformation (HFVM), including arteriovenous malformation (AVM) and dural arteriovenous fistula (dAVF). Our objective was to evaluate susceptibility-weighted angiography (SWAN) for the detection of HFVM.

Methods

Fifty-eight consecutive patients with a suspected intracranial vascular malformation were explored with SWAN and post-contrast MRI sequences at 3 T. The diagnosis of slow-flow vascular malformation (SFVM), including developmental venous anomaly (DVA) or brain capillary telangiectasia (BCT), was based on MRI. Patients with suspected HFVM underwent digital subtraction angiography (DSA). SWAN images were analysed by three blinded readers according to a three-point scale of the venous signal.

Results

Thirty-one patients presented 35 SFVM (26 DVA and 9 BCT) that systematically appeared hypointense on SWAN images. In patients with atypical MRI findings, DSA revealed one patient with an atypical DVA and 26 patients with HFVM (22 AVM and 4 dAVF). SWAN revealed at least one venous hyperintensity in all patients with HFVM. Agreement between readers was excellent.

Conclusions

SWAN appears reliable for characterising blood flow dynamics in brain veins. In clinical practice, SWAN can routinely rule out HFVM in patients with atypical brain veins.

Key Points

? Susceptibility-weighted angiography (SWAN) offers new perspectives for detecting intracranial vascular malformations. ? SWAN sequence provides non-invasive characterisation of blood flow dynamics. ? SWAN can differentiate between high and slow flowing venous blood. ? SWAN can routinely rule out high-flow vascular malformations.  相似文献   
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PURPOSE: The purpose of this work was to correlate the CT features of cystic dystrophy in heterotopic pancreas (CDHP) with pathological features. METHODS: Patients were selected from 190 patients who underwent pancreatico-duodenectomy over a 10 year period in our institution. CT findings were retrospectively analyzed in 20 cases and correlated with pathological findings. RESULTS: Lesions were found to be located in the inner part of the second portion of the duodenum in all except one case. In all cases, the duodenal wall was thickened, both at CT and at histopathological examination, and moderate to strong contrast enhancement of the duodenal wall was noted at CT in all cases but one. Cysts were multiple in all cases. No heterotopic pancreas was identified with CT. Inflammatory changes with or without enlarged nodes were detected on CT in 15 of 20 cases. Chronic pancreatitis was present in 10 cases at pathology, including 5 cases with calcifications. The radiopathological correlation was excellent for all criteria but two: the size of the cysts and the extent of pyloric involvement. CONCLUSION: In patients with CDHP, CT features correlate well with pathological results. Multiple cysts located in an enlarged duodenal wall with postcontrast enhancement and inflammatory changes are strongly suggestive of CDHP.  相似文献   
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Granulomatosis with polyangiitis (GPA; formerly Wegener's granulomatosis) is a rare vasculitis that commonly starts in the craniofacial region. We report a case that was masked by prior facial trauma and associated with pyoderma gangrenosum (PG). Disease progression and aggressive debridements led to severe facial tissue loss. The decision to perform a face transplant was controversial because of the risk of disease relapse on the facial allograft. We reviewed renal transplant outcomes in GPA for possible relevance. A PubMed search retrieved 29 studies. Patient and graft survival, relapse, morbidity, mortality, rejection and immunosuppression were assessed. Ten‐year patient survival and graft survival were 84.4% and 72.6%, respectively. GPA relapse occurred in 31.5%, and upper airway/ocular relapse occurred in 17.8% (resolved in 76.9%). Mortality was 12.3%. Acute and chronic rejection rates were 14.9% and 6.8%, respectively. Traditional posttransplant immunosuppression was effective. Our review suggests that GPA renal transplant outcomes are comparable to general renal transplant cohorts. Furthermore, transplanted GPA patients exhibit lower disease relapse secondary to lifelong immunosuppression. This supported our decision to perform a face transplant in this patient, which has been successful up to the present time (1‐year posttransplantation). Untreated GPA and PG are potential causes of worse surgical outcomes in the craniofacial region.  相似文献   
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This study was designed to evaluate the effects of crush injuries to the feeding arteries of a muscle flap on microcirculatory haemodynamics. Eighteen male Sprague-Dawley rats were divided into three experimental groups for intravital microscopy of the cremaster muscle flap. Group 1 served as control. In group 2 the common iliac artery and in group 3 additionally the lower abdominal aorta was crushed with a Kocher clamp (17.4 N) over 5 min. Microcirculatory parameters (red blood cell velocity, vessel diameter, and capillary perfusion) were monitored before and 2 h after crush. In the one-level crush group, red blood cell velocities significantly decreased by 39.17% (P=0.046) in first order arterioles and by 32. 91% (P=0.0106) in second order arterioles. In capillary perfusion, a drop of 48.02% (P=0.0039) was noted. In the two-level crush group, red blood cell velocities significantly dropped over 32.06% (P=0. 0250) in first order arterioles, 35.91% (P=0.0065) in second order arterioles, and 45.69% (P=0.0782) in first order venules. Capillary perfusion was reduced by 20.16% (P=0.374). Arterial crush injuries as possible thrombogenic insults may result in a significant decrease in skeletal muscle perfusion although the blood supply through the crushed supplying vessel is maintained.  相似文献   
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