BACKGROUND Many cerebral aneurysms can be treated effectively with intracranial stents. Unfortunately, stents can occlude perforating vessels near the treatment site which can decrease cerebral perfusion and increase the risk of stroke. METHODS Particle image velocimetry was used to investigate the effects of intracranial stents on flows in perforators near a treated aneurysm. In Phase 1 of t...

OBJECTIVE To determine the clinical efficacy and local haemodynamic effects of perforating vein surgery in ulcerated limbs with combined deep and perforating vein incompetence. DESIGN Prospective, interventional study. MATERIALS AND METHODS Seven ulcerated limbs with combined primary deep and perforating vein incompetence were studied. Clinical efficacy was determined by ultimate ulcer heal...

OBJECTIVE Cerebral vessels, such as intracerebral perforating arterioles isolated from rat brain, have been widely used as an ex vivo model to study the cerebrovascular function associated with cerebrovascular disorders and the therapeutic effects of various pharmacological agents. These perforating arterioles, however, have demonstrated differences in the vascular architecture and reactivity c...

To the Editor: Lichen nitidus is a rare disorder characterized by multiple, skin-colored, micropapular lesions with a smooth, shiny surface, located preferentially on the flexor surface of the arms and wrists and on the abdomen and genitalia, though they can become generalized. Histological study shows a lymphohistiocytic infiltrate that broadens the dermal papillae and that is limited laterall...

(A) Prominent filling defect at the floor of the proximal left anterio septal perforating branch. Left main coronary artery normal. Left c wire biased down septal perforating branch of the LAD. Thrombus Far field of the vessel (9 to 1 o’clock positions) drops out and is n erosclerotic plaque in the LAD—visualized by OCT at the 9 to 10 o branch. (F) Further ruptured atherosclerotic plaque in the...

Perforating granuloma annulare (GA) is a rare subset of GA with an unknown etiology and chronic course. Herein, we report the case of 72 year-old women with a 3-month history of a post-traumatic, persistent, erythematous and exudative plaque located on her left leg. Differential diagnosis included mycobacterial infection, subcutaneous mycosis, perforating dermatoses, pyoderma and squamous cell ...

BACKGROUND Although many articles on perforating veins have been published, much knowledge about these veins is lacking. OBJECTIVE In this review relevant facts about the clinical importance of perforating veins in venous disease are described. METHODS A literature search on English, French and German articles has been performed using literature databases like Medline, Embase and Cochrane. ...

Various reported methods to demonstrate the territory supplied by an intracranial artery are designed to deal with major cerebral arteries or a group of perforating arteries. We have devised a technique to demonstrate the area supplied by individual small perforating arteries using different dyes with gelatin. A temporal craniectomy was made in the dog and the posterior circle of Willis was exp...

Primary chronic venous disorders, which according to the CEAP classification are those not associated with an identifiable mechanism of venous dysfunction, are among the most common in Western populations. Varicose veins without skin changes are present in about 20% of the population while active ulcers may be present in as many as 0.5%. Primary venous disorders are thought to arise from intrin...

background osteotomy is one of the major steps in rhinoplasty. the aim of study was to compare edema and ecchymosis after external and internal lateral osteotomy in patients who underwent rhinoplasty. methods based on a prospective randomized clinical trial, 168 osteotomies were performed through an external route in a perforating fashion and internal route in a continuous fashion at right or l...