9 research outputs found
Assessment of pollution risk ascribed to Santa Margarida Military Camp activities (Portugal)
Santa Margarida Military Camp (S.M.M.C.) is
the only one Portuguese military training area, including
firing ranges for tactical military manoeuvres of mechanised
divisions. For this reason, various negative effects on
the environment were expected due to the military activities,
as the Military Camp’s area is classified as a high
vulnerability area to pollution of its multilayer porous
aquifers. The aim of this study was to identify and characterise
local/regional geochemical impacts caused by the
continuing military training activities performed at
S.M.M.C. in the course of 52 years. An overview of the
geochemical research issues as a basis for risk assessment
is presented. A special attention has been put on the
quality of local and regional surface waters, shallow
groundwaters and groundwaters. Local soils and sediments
as well as fragments of shells and bullets were sampled
and analysed. The results so far obtained, indicated that none pollution effects were a consequence of the military
training activities. Till now, the geochemical signatures
such as, high levels of K, Cl and NO3 in waters, detected
in particular sites, should be faced as tracers of diffuse
pollution ascribed to urban waste disposal and cattle
breading
Outcomes after perioperative SARS-CoV-2 infection in patients with proximal femoral fractures: an international cohort study
Objectives Studies have demonstrated high rates of mortality in people with proximal femoral fracture and SARS-CoV-2, but there is limited published data on the factors that influence mortality for clinicians to make informed treatment decisions. This study aims to report the 30-day mortality associated with perioperative infection of patients undergoing surgery for proximal femoral fractures and to examine the factors that influence mortality in a multivariate analysis. Setting Prospective, international, multicentre, observational cohort study. Participants Patients undergoing any operation for a proximal femoral fracture from 1 February to 30 April 2020 and with perioperative SARS-CoV-2 infection (either 7 days prior or 30-day postoperative). Primary outcome 30-day mortality. Multivariate modelling was performed to identify factors associated with 30-day mortality. Results This study reports included 1063 patients from 174 hospitals in 19 countries. Overall 30-day mortality was 29.4% (313/1063). In an adjusted model, 30-day mortality was associated with male gender (OR 2.29, 95% CI 1.68 to 3.13, p80 years (OR 1.60, 95% CI 1.1 to 2.31, p=0.013), preoperative diagnosis of dementia (OR 1.57, 95% CI 1.15 to 2.16, p=0.005), kidney disease (OR 1.73, 95% CI 1.18 to 2.55, p=0.005) and congestive heart failure (OR 1.62, 95% CI 1.06 to 2.48, p=0.025). Mortality at 30 days was lower in patients with a preoperative diagnosis of SARS-CoV-2 (OR 0.6, 95% CI 0.6 (0.42 to 0.85), p=0.004). There was no difference in mortality in patients with an increase to delay in surgery (p=0.220) or type of anaesthetic given (p=0.787). Conclusions Patients undergoing surgery for a proximal femoral fracture with a perioperative infection of SARS-CoV-2 have a high rate of mortality. This study would support the need for providing these patients with individualised medical and anaesthetic care, including medical optimisation before theatre. Careful preoperative counselling is needed for those with a proximal femoral fracture and SARS-CoV-2, especially those in the highest risk groups. Trial registration number NCT0432364