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Biomedical subjects

J Sopko

Publications and source records attributed to J Sopko.

12 recordsLinked to original sources
PubMed1993

The flow-volume loop in bilateral vocal cord paralysis.

A 38-year-old man with posttraumatic bilateral vocal cord paralysis and a surgically repaired avulsion of the extrathoracic trachea presented with a slight increase of exertional dyspnea (grade 2). Spirometry showed high normal FEV1 for FVC variables, but the F-V loop was characteristic for highly variable UAO with an increased FEV1/PEF ratio of 11 ml/L/min as well as a MEF50/MIF50 of 4.55. Endoscopy during forced respiration showed near total inspiratory obstruction of the larynx due to paradoxical behavior of the vocal cords. In extrathoracic airway obstruction a FEV1/PEF ratio > 10 ml/L/min combined with a MEF50/MIF50 ratio > 4 is suggestive of variable UAO caused by bilateral vocal cord paralysis rather than by a tracheal lesion.

Adult↗
PubMed1983

[Laryngeal changes following functional dysphonia].

Different clinical entities of functional voice disorders and their corresponding laryngoscopic findings are discussed. The visible changes must be regarded as functional consequences of muscular dystonia. The combination of laryngoscopic findings, auditive judgement and a complete history of the patient will allow the practitioner to establish a correct diagnosis without any need for special instruments. Conservative voice therapy however should be carried out by an experienced phoniatrician.

Humans↗
PubMed1982

Normal exercise capacity in patients with severe left ventricular dysfunction: compensatory mechanisms.

About one-third of patients who have severe left ventricular dysfunction can achieve normal levels of exercise. To elucidate the mechanisms that permit this to occur, we studied six patients with severe left ventricular dysfunction (average left ventricular ejection fraction 17 +/- 2.5% [mean +/- SEM]) who achieved nearly normal levels of exercise tolerance (greater than 11 minutes of treadmill exercise, Sheffield protocol). All patients had normal pulmonary function at rest and during exercise. Hemodynamics were measured at rest and during supine and upright exercise. The major mechanisms of the preserved exercise capacity in these patients were chronotropic competence, ability to tolerate elevated wedge pressures (33 +/- 3 mm Hg) without dyspnea, ventricular dilation, and increased levels of plasma norepinephrine at rest and during exercise. Also, whereas peripheral vascular resistance was unchanged during supine exercise, it decreased by 50% during similar levels of upright exercise. As a consequence, increases in cardiac output from rest to exercise were greater during upright than supine exercise (100% vs 50%, respectively) (p less than 0.05), and pulmonary wedge pressures were lower during upright than supine exercise (21 +/- 5 mm Hg vs 33 +/- 3 mm Hg). Thus, multiple mechanisms permit some patients with severe left ventricular dysfunction to achieve normal levels of exercise. These studies emphasize that left ventricular function must be assessed by direct means rather than inferring function of the left ventricle from the results of an exercise tolerance test.

Aged↗
PubMed1979

[Bullous dermatoses in otorhinolaryngology (author's transl)].

The early clinical and histological diagnosis of acquired bullous dermatoses (pemphigus, bullous pemphigoid and the cicatricical pemphigoid of mucous membranes) may prove to be difficult when the disease is confined to the upper air and food passages. Histological differentiation between these diseases can also be difficult. In a number of cases it could be shown that the first signs of the disease were frequently mistaken for inflammatory conditions and that routine histological examination rarely confirmed the diagnosis. Only after immunohistological and immunoserological examination could the diagnosis be confirmed. In pemphigus, the treatment can be individually adapted to the titre of antibodies. The typical otorhinolaryngological findings in each of the three diseases are described.

Aged↗
PubMed1978

Liver disease in renal transplant recipients.

Liver disease is a common complication in renal transplant recipients. Several types of liver disease can occur. The most common are acute and chronic hepatitis. The variety of acute hepatitis include hepatitis A, hepatitis B, cytomegalovirus hepatitis, herpes simplex hepatitis and azathioprine hepatitis. The incidence of azathioprine hepatitis may not be as high as initially suggested. Chronic hepatitis is a serious problem because the disease seems to be progressive despite prednisone therapy. The causes of this chronic hepatitis are not fully known, although hepatitis B, cytomegalovirus and herpes simplex virus have been implicated. Discontinuation of azathioprine therapy has no appreciable effect on the course of chronic hepatitis.

Animals↗
PubMed1978

[Phoniatric and laryngological aspects of systemic scleroderma (author's transl)].

Organs which contain collagen can have connective tissue new growth in systemic scleroderma. The occurrence of scleroderma of the larynx and organs of speech is rare. The disease develops in the mucous membrane in three stages: oedema; infiltration and induration; and atrophy. The oedema stage is generally the shortest. Three patients with systemic scleroderma with involvement of larynx and organs of speech have been seen. In one is described (graphically, sonographically and with stroboscopy) the progress of the disease from an initial severe hoarseness to later resolution of the oedema. In another patient involvement of the soft palate produced rhinolalia. In spite of the limitation of tongue movement in 2 patients there was no disorder of articulation.

Aged↗
PubMed1977

[Clinical aspects of esophageal speech (author's transl)].

The quality of esophageal voice and speech after laryngectomy depends on several factors. Negative influences are produced by irradiation, resection of the hyoid bone and radical neck dissection. The factors important in esophageal speech were analyzed, with consideration given to the functional morphology of the pseudoglottis and the reconstructed hypopharynx. Phoniatric, laryngologic and radiologic aspects are considered.

Aged↗
PubMed1976

[Spastic dysphonia].

Between 1968 and 1974 10 patients (4 men, 5 women, and 1 10-year-old girl) with spastic dysphonia were observed at the Phoniatric Department of the ENT clinic in Lucerne. According to the clinical documentation, the probable etiologic factors, the clinic appearance as well as the therapeutic measures and their results are discussed.

Adult↗