Toru Inamori

Intra Venous Digital Subtraction Angiography for Patients with Positional Nystagmus

Thirty cases of intractable positional vertigo were studied by means of digital subtraction angiography (DSA). Benign paroxysmal positional vertigo was not included. DSA allows real time digital subtraction of X-ray transmission data using an image intensifier and television system. Intravenous DSA (IV DSA) was used to compare blood vessel flow in the right and left vertebral arteries. Abnormal findings were noted in 27 patients, with 10 being affected on the left side, 7 on the right, and 10 bilaterally. Twenty-three patients had slight stenosis, and bending and kinking were observed in 17. DSA results were related to the 6 established types of positional nystagmus. DSA is, therefore, considered to be an important tool in the diagnosis and treatment of positional vertigo.

Transdermal Scopolamine in the Treatment of Vertiginous Episodes Associated with Ménière’s Disease

The parasympatholytic drugs, the antihistamines, and the phenothiazine tranquilizers all have a central depressant action and have long been used in preventing or treating motion sickness. The most widely used drugs are those with few atropine-like or sedative side-effects and thanks to the interest of the armed forces, many field studies and clinical trials evaluating drugs against motion sickness are available [1, 2]. In 1966, Brand and Perry [3] compiled exhaustive reviews on drugs used in motion sickness. They reported that there is no substitute for l-hyoscine (scopolamine) where the aim is to provide quick action but short-term protection against exposure to severe motion, but that for the prophylaxis of motion sickness during a long voyage, the diphenhydramine, cyclizine, may afford adequate protection.

Digital Subtraction Angiography for Patients with Positional Nystagmus

Thirty cases of intractable paroxysmal positional vertigo except benign paroxysmal positional vertigo were studied by means of digital subtraction angiography (DSA), which allows real-time digital subtraction of X-ray transmission data from an image intensifier and television system. IVDSA (intravenous DSA) was used to compare blood vessel flow between the right and left vertebral arteries. Abnormal findings were noted in 27 patients, with 10 being affected on the left side, 7 on the right, and 10 bilaterally. Twenty-three patients had slightly stenosis, and bending and kinking were observed in 16. DSA results were related to the 6 established types of positional nystagmus. DSA is, therefore, considered to be an important aid for the diagnosis and treatment of positional vertigo.