Björn Petruson

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An electro-nystagmographic study of labyrinthine function was performed in 56 patients with adolescent idiopathic scoliosis (AIS)aged from 10 to 16 years. Forty-seven patients had major structural single curvatures, and nine patients had double-primary scoliosis and were analysed separately. Treatment was required in 36 cases while 20 were being observed(More)
In patients with nosebleedings, the hemostatic effect of local application of tranexamic acid gel or placebo was compared in a randomized, double-blind, multicenter clinical trial with parallel groups. The times needed to arrest the initial bleeding were recorded, as well as any rebleedings within 10 days. The results showed no significant differences in(More)
Despite refinements in surgical technique, including bone grafting and sophisticated prosthetic reconstructions, there are limitations to what can be achieved with bone-anchored fixed prostheses in patients with advanced atrophy of the maxillae. A new approach was suggested by a long-term study on onlay bone grafting and simultaneous placement of a fixture(More)
The occurrence of epistaxis in 121 habitual nose-bleeders has been analysed together with the importance of different etiological factors. Heredity for recurrent nose-bleeds was noted by 42% of the bleeders, which was significantly more than in the control group (p less than 0.001). The start of the nose-bleeds was mostly spontaneous. Both common cold and(More)
The regulation of the fluid balance of the mucus is important for a good function of the mucociliary system in the nose. The nasal glands and the goblet cells have been proposed to be the main source of fluid. Microvilli-equipped epithelial cells, ciliated and nonciliated, constituting 70% to 90% of the cells on the turbinates in the nose, are of importance(More)
Twenty-two patients with common variable immunodeficiency (CVID) and 18 patients with selective IgA deficiency were examined with respect to previous and present infections of the upper respiratory tract (URT), especially of the nose and paranasal sinuses. Recurrent acute rhinosinusitis was common in both groups of patients, but the development of chronic(More)
Juvenile nasopharyngeal angiofibroma is a disease afflicting mainly adolescent males. The lesion is benign but characterized by local aggressive growth. In advanced cases the tumour may extend intracranially. In this study 18 cases of juvenile nasopharyngeal angiofibroma were investigated. Tumour extension was assessed with the use of angiograms and CT and(More)
A treatment and follow-up study of 32 patients with juvenile nasopharyngeal angiofibroma (JNA) was performed at our clinic between 1974 and 1998. The majority had undergone surgery either via an antral approach or with a lateral rhinotomy. In the 1970s, surgery was combined with ligature of the external carotid artery and, since 1981, it has been combined(More)
Postural sway has been quantified with stabilometry during caloric labyrinthine stimulation in an erect posture in 49 patients, aged 10--16 years, with adolescent idiopathic scoliosis. Thirty-two healthy children of the same age constituted a control group. The scoliotic patients tended to have an increased postural sway during labyrinthine stimulation on(More)