0 something that blocks a road, passage, entrance, etc. so that nothing can go along it, or the act of blocking something in this way: --
1 law Obstruction of justice is the act of preventing the police or law courts from doing their job. --
In tight obstructions gradual balloon angioplasty leads to augmentation of the newly created venous channel.
Our data demonstrate that endovascular stents can provide effective relief of residual obstructions in the early postoperative period.
Topological obstructions to the integrability of geodesic flows on nonsimply connected i manifolds.
The two main obstructions to shadowing are the existence of homoclinic tangencies and of heterodimensional cycles.
To give a practical characterization of the obstructions, we introduce some operations which preserve path-width at most two.
Family history did not reveal cardiopulmonary anomalies, except for frequent recurrence of pulmonary airway obstructions necessitating inhalative bronchodilatatory treatment in the older brother.
Coronary ostial obstructions were detected and successfully dilated in 2/26 patients.
Of course, these data are limited by die small number of pulmonary venous obstructions encountered.
