ABSTRACT
The European Dendroecological Fieldweek (EDF) is a one-week course that takes place every year at varying locations in Europe according to the principle "Bring tree-ring research to the people”. The EDF welcomes early-career to advanced researchers, but also forest service and other federal agency employees and private people interested in tree-ring sciences from all over the world. It encompasses a large spectrum of dendrochronological field, laboratory and data analysis methods and scientific fields including climatology, ecology, physiology, geomorphology and archaeology. Multiple scales of observations from the individual cell to the ecosystem level and from seasonal to multi-centennial periods are covered. Work on mini research projects in topic groups alternates with keynote lectures and individual participants' presentations. As one of the first in-person tree-ring meetings since the start of the COVID-19 pandemic the 31st EDF was held in summer 2021 in Val Müstair, Switzerland. Topics included i) Tree age and climate sensitivity of a relict, old-growth Scots pine stand, ii) Blue intensity-based climate sensitivity of Norway spruce growth, iii) Tree rings as indicators of grey larch budmoth outbreaks, iv) Growth of larch trees along an abandoned irrigation channel, v) Wood anatomical characteristics of two alpine creeping shrub species, and vi) Historical dating of a stable and a residential house. Alongside with their educational value these projects allowed novel insight into the age structure and growth dynamics of the sub-alpine forests and beyond in the valley and provided valuable outcome to the local stakeholders such as the Nature Park Biosfera Val Müstair, the local forest service and the public of Val Müstair. Under hindered conditions due to the pandemic, the 31st EDF still demonstrated its strength as an international educational and interdisciplinary scientific field and lab course, combining teaching with the application of cutting-edge technologies. © 2023
ABSTRACT
Introduction. Cerebrovascular attacks are one of the leading causes of mortality and morbidity in the world. The most severe are considered to be pontine strokes, because of the high risk of vital functions impairment. The clinical presentation of a pontine stroke can vary from the classical crossed syndrome (ipsilateral cranial nerve palsy and contralateral motor and/or sensory impairment) to pure motor hemiplegia or pure sensory stroke, which are less common.(1) Materials and methods. This presentation describes the case of a 39-year-old patient with a recent history of untreated SARS-COV 2 infection that was followed in the next month by a sudden onset of facial paralysis, dysarthria and a progressive left hemiplegia. The patient's functional status was assessed in our Neuromuscular Clinical Division and he underwent a rehabilitation program consisting of physical, occupational and speech therapies. Multidisciplinary efforts were made in order to find the underlying cause of the pontine ischemic stroke. Results. The patient had a personal history of cardiovascular disease risk factors (essential hypertension and hyperlipidaemia), without other pathological brain imagining outcomes and normal bleeding tests. The suspicion of an interatrial communication was raised. The patient managed to rapidly maintain the standing posture and to practice walking with unilateral support. At discharge, the facial paralysis and dysarthria were almost completely remitted. The left brachial extremity also showed signs of improvement, as the patient was able to perform flexion and extension movements of the fingers, wrist and forearm. Conclusion. To conclude, the patient's evolution was favourable, although the certain cause of the underlying stroke has not been clarified. The neurological complications of COVID-19 include ischemic strokes, and cases were reported in young adults too(2,3). If this were the case, prevention of further cerebrovascular attacks and their complications is necessary(1). Caution in terms of medium/long-term prophylactic anticoagulant therapy and careful control of associated cardiovascular disease risk factors has been proposed and discussed in the multidisciplinary team: rehabilitation physician, neurologist, cardiologist.
ABSTRACT
INTRODUCTION: Spinal ependymomas are a group of mostly slow-growing tumors that can cause non-traumatic spinal cord injury with insidious clinical symptomatology ranging from neck or back pain to associated sensory-motor impairment. Due to their neurological and systemic frailty, patients with spinal cord injury might be especially vulnerable to the effects of SARS-CoV-2 infection and the resulting respiratory impairment. CASE PRESENTATION: We present the case of a 66 year old women admitted in our Neuromuscular Rehabilitation Clinic Division for severe incomplete paraplegia and neurogenic bladder. She was previously diagnosed in the Neurosurgical Ward with a thoracic grade II (classic) ependymoma and underwent a gross tumor resection. During the neurorehabilitation program the patient was diagnosed with COVID-19. The multi-drug related treatments were associated with supportive oxygen therapy and neuromuscular and respiratory rehabilitation techniques. RESULTS: Despite of the patient's favorable rehabilitation, consisting of walking abilities with support in a walking frame on short distances, her prognosis may be worsened by resting neurogenic bladder symptoms. COVID-19 has led to important acute respiratory morbidity in our patient, regardless of the mild course of the disease, and might further cause a post-infectious respiratory impairment. ONCLUSION: Spinal cord injury remains a life-long condition and emphasizes the necessity of supporting the affected patients on the long run.