ABSTRACT
Post-transplant lymphoproliferative disorders (PTLDs) are considered a fatal consequence of immunosuppression. We report a case of a 52-year-old patient, who underwent a cardiac transplantation and presented undefined recurrent episodes of pleuropericardial effusions without lymphoadenomegaly at chest radiographs and computed tomography. Histopathological analysis of the bioptic pericardium showed a specific chronic inflammation. Monitoring endomyocardial biopsies (EMBs) showed only 1 episodes of greater than grade 2R acute cellular rejection requiring immunosuppressive treatment, mild vasculitis in 2 subsequently EMBs while constantly negative for antibody-mediated rejection or infection. Only a post-mortem examination demonstrated the presence of an aggressive acute non-Epstein-Barr virus (EBV)-related proliferative disorder with unusual primitive localization into the pericardium and with coronary epicardial and intramyocardial necrotizing vasculitis and superimposed occlusive and subocclusive thrombosis. Recurrence of unexplained early pleuropericardial effusion and mild intramyocardial vasculitis should raise the suspicion of PTLD requiring reduction of immunosuppression, even in the setting of negative intramyocardial cellular infiltrate and tissue EBV-negative molecular assessment.
Subject(s)
Epstein-Barr Virus Infections/complications , Heart Transplantation/adverse effects , Herpesvirus 4, Human , Lymphoproliferative Disorders/complications , Pericarditis/etiology , Biopsy , Epstein-Barr Virus Infections/diagnosis , Fatal Outcome , Humans , Lymphoproliferative Disorders/diagnosis , Male , Middle Aged , Pericarditis/diagnosisABSTRACT
The functional relationships between the extraocular muscles of the myopic eye and the muscles of the neck were studied by means of electromyography, with the aim of demonstrating a possible alteration of the posture of the head due to abnormal tonus of the trapezius and sternocleidomastoid mm. in subjects with defective vision. The study was conducted in a group of 10 subjects with normal vision and a group of 10 myopic subjects, between the ages of 20 and 40 years. Electromyographic recordings of the relevant muscles were made during varied eye movements. Analysis of the results demonstrated a marked difference in tonic activity of the named muscles between the myopic and the normal groups. The findings suggest that, in the correction of visual defects, attention should be paid to postural adjustment of the neck by means of a series of programmed exercises directed towards the trapezius and sternocleidomastoid mm.
Subject(s)
Myopia/physiopathology , Neck Muscles/physiopathology , Oculomotor Muscles/physiopathology , Adult , Electromyography , Female , Humans , MaleABSTRACT
We studied many postural tests with an electromyographical methodology on a group of young men who had a right molar precontact. We compared the results of these tests before and after changing the right plantar arch by placing some plastic on the medial right margin of the homolateral plantar arch (talipes valgus) or on the whole plantar arch (flat foot). We demonstrated the dependence of the occlusal plane on the morphological variations of the plantar arch.
Subject(s)
Dental Occlusion , Foot/physiology , Masticatory Muscles/physiology , Posture/physiology , Adult , Electromyography , Humans , Male , Muscles/physiologyABSTRACT
The dentate, triceps, deltoid and the middle bundle of the trapezius have been studied in two movements specific to boxing in a group of professionals. Analysis of results has shown a higher commitment of the trapezius; in the jab considerable deltoid activity was evident. In the upper-cut we noticed little commitment of the deltoid and triceps, in the jab, little commitment of dentate and triceps.
Subject(s)
Boxing , Movement/physiology , Muscles/physiology , Biomechanical Phenomena , Electromyography , Humans , Male , Muscle Contraction , Muscles/anatomy & histologyABSTRACT
A clinically normal 5 year old child with a family history of scoliosis was studied. Electromyography of the thoracic and lumbar erector spinae muscles and roentgenography of the spine were both done on two separate occasions, six months apart. On the first electromyographic investigation, moderate predominance of activity was found over the left thoracic erector spinae muscles. At that time, spinal roentgenography showed normal results, whereas six months later left thoracolumbar scoliosis was evident. It was concluded that electromyographic investigation is useful for the early diagnosis of scoliosis in school-age children.
