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The optimal characteristics of pneumatic compression for mechanical prophylaxis of thromboembolism after total knee arthroplasty (TKA) are not known. Our study compared two methods of calf compression, with the hypothesis that the device which provided a larger increase in peak venous velocity would produce a lower rate of thromboembolism. We performed a prospective, randomised study on 423 patients (472 knees). Duplex ultrasonography was carried out by experienced technicians who were blinded to the device used. Overall, 206 patients (232 knees) used a rapid inflation, asymmetrical compression (RIAC) device and 217 (240 knees) a sequential circumferential compression device (SCD). The rate of venous thromboembolism was 6.9% with the RIAC device compared with 15% for the SCD device (p = 0.007). The incidence of thrombi with unilateral primary TKA was 8.4% for the RIAC compared with 16.8% for the SCD device (p = 0.03). In 47 patients with a bilateral TKA, the incidence of thrombi was 4% for the RIAC compared with 22.7% for the SCD device (p = 0.05 per knee). There was a low rate of mortality and pulmonary embolism when using mechanical prophylaxis for thromboembolism after TKA. Our findings show that the use of rapid inflation, asymmetrical calf compression gave a significantly lower rate of thromboembolism.
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PMID:Two mechanical devices for prophylaxis of thromboembolism after total knee arthroplasty. A prospective, randomised study. 1556 26

Results of our analysis show as that breast reconstruction become a standard part of the care of female patients with breast cancer We will analyse the factors that are important for the primary or secondary breast reconstruction after mastectomy, and also take a closer look on the most recent scientific advances on breast reconstruction and on the protocols regarding them. The breast is the most common site of cancer in Croatia women. Breast cancer is the first leading cause of cancer death among women today. The incidence of female breast cancer in Croatia estimates that approximately 2.200 news cases of female breast will be diagnosed every year. We retrospectively analysed data of 101 female patients undergoing reconstructive surgery for breast reconstruction after mastectomy at Division of Plastic Surgery and Burns, University Hospital Center Split and University Clinic of Plastic and Reconstructive Surgery, Innsbruck, Austria, between 1998 and 2008. For the purpose of outcome assessment, we performed the tree different type of questionnaire: (1) Personal/medical profile (Table 1), (2) Aesthetic assessment (Table 2), and (3) Psychosocial assessment (Table 3). The occurrence of main complications during breast reconstruction (partial necrosis of flap, hernia of donor site, pulmonary embolism, deep venous thrombosis, infection rate, hemathoma and seroma formation, and extrusion of expander/implant) during hospitalisation and follow up period until 6 post operatively were analysed with respect to use different type of reconstructive methods for breast reconstruction. The difference in complication between patients groups was evaluated by chi2-test. The level of significance was set up at p = 0.05. Mann-Whitney test was used to compare the time from mastectomy to breast reconstruction, due to asymmetrical data distribution. The three main variables of this study were to identify significant risk factors, asses the aesthetic outcome, and patient satisfaction with performed different methods for breast reconstruction (LD flap with or without tissue expander and implant, pedicle and free TRAM flaps, and expander /implants only. These variables determined the current guidelines for early and late breast reconstruction after mastectomy such as patient data, age and own decision, relation ship between reconstruction and radiotherapy, and chemotherapy, and finally about breast preserving operation. The result should confirm that breast reconstruction after mastectomy is justified, especially in young women, as well as how essential is team work involved in breast cancer operation and breast reconstruction after mastectomy.
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PMID:Breast reconstruction after mastectomy. 2040 6

A previously well 59-year-old lady with 70 kg weight loss and chronic diarrhoea over a 28-month period presented following collapse and subsequent diagnosis of pulmonary embolism. Previous investigations for this weight loss included normal gastroscopy and colonoscopy, CT and MRI abdomen, barium follow through and octreotide scan. She underwent echocardiogram which revealed myocardial speckling and asymmetrical left ventricular hypertrophy. Repeat oesophago-gastro-duodenoscopy and colonoscopy for rectal bleeding was performed. Colonoscopy revealed intramucosal haematomas and electron microscopy (EM) of the gastric biopsies confirmed amyloid deposition. Amyloidosis of the gastrointestinal (GI) tract and heart were confirmed on serum amyloid protein scan. GI amyloid is rare and symptoms include weight loss, diarrhoea, GI bleeding and gut dysmotility.1 GI amyloidosis should be considered as a diagnosis and sought when other common causes have been excluded. The greatest yield is by Congo red staining or EM of rectal specimens.
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PMID:Gastric amyloidosis presenting with severe weight loss. 2276 88

The development of modern critical care lung ultrasound is based on the classical representation of anatomical structures and the need for the assessment of specific sonography artefacts and phenomena. The air and fluid content of the lungs is interpreted using few typical artefacts and phenomena, with which the most important differential diagnoses can be made. According to a recent international consensus conference these include lung sliding, lung pulse, B-lines, lung point, reverberation artefacts, subpleural consolidations and intrapleural fluid collections. An increased number of B-lines is an unspecific sign for an increased quantity of fluid in the lungs resembling interstitial syndromes, for example in the case of cardiogenic pulmonary edema or lung contusion. In the diagnosis of interstitial syndromes lung ultrasound provides higher diagnostic accuracy (95%) than auscultation (55%) and chest radiography (72%). Diagnosis of pneumonia and pulmonary embolism can be achieved at the bedside by evaluating subpleural lung consolidations. Detection of lung sliding can help to detect asymmetrical ventilation and allows the exclusion of a pneumothorax. Ultrasound-based diagnosis of pneumothorax is superior to supine anterior chest radiography: for ultrasound the sensitivity is 92-100% and the specificity 91-100%. For the diagnosis of pneumothorax a simple algorithm was therefore designed: in the presence of lung sliding, lung pulse or B-lines, pneumothorax can be ruled out, in contrast a positive lung point is a highly specific sign of the presence of pneumothorax. Furthermore, lung ultrasound allows not only diagnosis of pleural effusion with significantly higher sensitivity than chest x-ray but also visual control in ultrasound-guided thoracocentesis.
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PMID:[Lung ultrasound in acute and critical care medicine]. 2277 47

A large part of the world is presently in the grip of the coronavirus disease (COVID-19) by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2 virus), declared a pandemic in March 2020. This document is a brief commentary of the imaging modalities used in the screening, diagnosis and management of COVID-19 pneumonia. Chest x-rays, especially portable, still form a part of majority of official guidelines, with reports of the suggestive radiologic features. The potential of CT scan and ultrasound is also realised, with earlier detection rate. Typical radiologic findings of bilateral, asymmetrical, crazy-paved ground glass opacification, consolidation, reverse halo sign, opacities, progressing to fibrosis are well described for both the X-ray and CT scan. Atypical findings include airway changes, pleural effusion, pulmonary nodules and acute pulmonary embolism. Absence of lymphadenopathy, pleural effusion and pneumothorax is notable. The role of portable lung ultrasound, reported to be useful in emergency, is yet to be established in the guidelines. Disinfection of the equipment is a major concern. Governmental guidelines still advocate X-ray despite professional societies increasingly recommending CT scan.
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PMID:Radiology of COVID-19 - Imaging the pulmonary damage. 3251 87