Three molecules found in rosemary or nutmeg essential oils repel ticks (Dermacentor variabilis) more effectively than DEET in a no-human assay.

Background: Development of new personal repellents to prevent tick bites is progressing to keep up with the increasing threat of tick-borne diseases in humans. However, the market share of natural, plant-based repellents is still quite small. We tested all of the major (>1%) components found in the essential oils of rosemary (Spanish variety) and nutmeg.

Suspected deep venous thrombosis: is US of both legs necessary? [ comment].

Purpose: The first purpose was to test the assumption that ultrasound (US) examination of the asymptomatic leg was unnecessary. The second was to confirm the absence of deep venous thrombosis (DVT) in patients with bilateral symptoms.

Materials And Methods: Four hundred eighty-eight patients were evaluated at a peripheral vascular laboratory for signs and symptoms of DVT.

Utilization patterns with inferior vena cava filters: surgical versus percutaneous placement.

Purpose: To determine whether more inferior vena cava (IVC) filters were used after interventional radiologic placement methods became available, and if so, whether this increase could be due to expansion of indications.

Patients And Methods: A retrospective analysis of the number of filters placed, the method of placement used, the indications for placement, and patient survival was performed during the 3 years before and the 3 years after 1989, the first year filters were placed percutaneously at the authors' institution.

Results: From 1986 through 1988, 35 filters were all placed by surgeons in the operating room.

Embolization to control iatrogenic ureteral hemorrhage: a case report.

Gross hematuria following percutaneous or endourological intervention is well known and widely documented. We report an unusual case of angiographically documented hemorrhage from a ureteral branch that was injured by cystoscopic removal of a Double-J stent, and subsequent successful transcatheter embolization. This case demonstrates the important role of angiographic diagnosis and therapy in the management of iatrogenic hemorrhage.

Not so rapid progression of peripheral vascular disease after diagnostic angiography.

It was recently reported that peripheral vascular disease may progress so rapidly after diagnostic angiography that most likely the diagnostic procedure is in some way responsible. Because flow-limiting arterial stenoses often become complete occlusions within hours or days of the diagnostic procedure, it was recommended that angioplasty be performed immediately after diagnostic angiography to avoid this complication. The authors attempted to confirm these findings before implementing this recommendation.

Case report 671: Arteriovenous malformation of the right lower extremity with associated intraosseous hemangiomatosis.

Since extensive involvement of the lower extremity with arteriovenous malformations occurs often combined with the potential risk of hemorrhage, transcatheter embolization has become an attractive alternative to surgical resection [7, 9]. We describe an unusual case of extensive intraosseous hemangiomatosis, with a concomitant arteriovenous malformation that presented in a 35-year-old woman as synovitis in a knee. MR images demonstrated that the lesion was far more extensive than originally suggested and directed the subsequent biopsy and embolization.

Acquired immunodeficiency syndrome: cerebral computed tomographic manifestations.

CT examination of the central nervous system was performed in 19 patients with acquired immunodeficiency syndrome (AIDS). Eighteen patients were homosexuals, and five drug abusers. Parenchymal and meningeal inflammations were seen in patients with intracranial manifestations of the disease.