No abstract available.

PURPOSE: To describe the MR features of intraspinal cysticercosis. MATERIALS AND METHODS: Medical records and MR images of four cases of intraspinal cysticercosis were retrospectively reviewed. The MR findings were described with regard to the location and signal intensity of the lesions, contrast enhancement, presence or absence of associated intracranial cysticerci, and other findings. RESULTS: There were three cases of subarachnoidal form and one case of intramedullary form. Cysticerci of subarachnoidal form in three cases were located in retromedullary space at C2 level, anterior to cord at C1 -C6 levels, and lumbosacral area, respectively. The signal intensities of the lesions were same as those of CSF. Localized arachnoidal enhancement was found in all three cases. In one case there was a large area of high signal intensity within the spinal cord on T2 weighted image suggesting either ischemia secondary to vascular compromise or inflammatory edema. All of these three cases accompanied intracranial cysticercosis. Intramedullary cysticercosis in one case was shown as a single I cm cystic lesion at C2 level, which showed hypointense signal on T1 weighted image, hyperintense signal on T2-weighted image, and signet-ring-like enhancement. This lesion did not accompany intracranial cysticerci. CONCLUSION: lntraspinal cysticercosis manifested as single or multiple cysts within either spinal cord or subarachnoid space, and were frequently associated with arachnoiditis.
Arachnoid ; Arachnoiditis ; Cysticercosis* ; Edema ; Ischemia ; Magnetic Resonance Imaging* ; Medical Records ; Retrospective Studies ; Spinal Cord ; Subarachnoid Space

BACKGROUNDS: Pain can occur following acute noxious stimuli and tissue damage. The duration of such pain may outlast the stimulus and its amplitude may be exaggerated (hyperalgesia). This response comes from a sensitization of the peripheral nociceptor. Traditional thought has associated the antinociceptive effects of opiates with the activation of opioid receptors located in the central nervous system. Recently, however, opiate receptors in the peripheral nervous system have led to the hypothesis that analgesic action might, in part, result from a reduction in the response of peripheral nerve fibers thought to be concerned with signaling pain. METHODS: Twenty units were recorded from the strands of the hypogastric nerve innervating the urinary bladder of the cat. Nerve activity and intravesical pressure were monitored before and after the onset of an acute inflammation induced by the intravesical instillation of 2% mustard oil. The responses of afferent units to chemical stimuli by intra-arterially injected bradykinin (10 microgram/0.2 ml., i.a.) and potassium chloride (0.3 M/0.2 ml, i.a.) were compared each time at control, after inflammation, and after administration of morphine (2.5 mg/kg) and naloxone (5 microgram/kg) respectively. RESULTS: Polymodal receptors in the urinary bladder showed excitatory response to algesic substances such as bradykinin, potassium chloride and the urinary bladder contracted simultaneously, both the responses of the nerve impulse and bladder contraction to bradykinin and potassium chloride increased significantly after bladder inflammation induced by 2% mustard oil and the sensitization of the sensory receptors attenuated by morphine and naloxone reversed the effect of morphine. CONCLUSIONS: These observations suggest that morphine might have a peripheral effect.
Action Potentials ; Administration, Intravesical ; Animals ; Bradykinin ; Cats ; Central Nervous System ; Inflammation ; Morphine* ; Mustard Plant ; Naloxone ; Nociceptors ; Peripheral Nerves ; Peripheral Nervous System ; Potassium Chloride ; Receptors, Opioid ; Sensory Receptor Cells* ; Urinary Bladder*

No abstract available.
Atrial Natriuretic Factor* ; Humans* ; Lymph Nodes* ; Polymerase Chain Reaction*

BACKGROUND: Scuba diving has become increasingly popular in Korea. Medical problems are common with dives, especially decompression sickness(DCS). This study was performed to obtain an useful information of hyperbaric oxygen therapy in DCS in Korea. METHOD: We reviewed the 62 cases of Korean divers, who were diagnosed as DCS and received recompression therapy according to U.S. Navy Standard Recompression Treatment Table at Ocean and Underwater Medical Research and Training Center of ROK Navy, for 6 years from Jan. 1993 to Nov. 1998. RESULT: 1) the mean no-decompression limit excess time between type I DCS group(72.7 min.) and type II DCS group(92.8min.) showed significant difference. 2) The rate of symptoms appeared on surfacing and within 10min. after surfacing of type I and type II DCS were 41.4%and 72.7% respectively. 3) The cure late of type I and type II were 75.9%and 42.4% respectively. In type II DCS group, the cure rate of the group within 12 hour-delayed recompression treatment and the group above 12 hour-delayed treatment were 64.3%and time 26.3% respectively, and in type I DCS group, 100% and 66.7% respectively. CONCLUSION: These findings suggest that the education of safety, the strict observance of the standard decompression table, and the avoidance of excessive repeated diving are important for reducing the risk of diving related disease. And to offer proper management of DCS, there should be more multiplace hyperbaric oxygen chambers, the suitable transport system, and the specialist of diving medicine or hyperbaric medicine in Korea.
Decompression Sickness* ; Decompression* ; Diving ; Education ; Hyperbaric Oxygenation* ; Korea ; Oxygen ; Specialization

No abstract available.
Fallopian Tubes* ; Female

No abstract available.
Doxorubicin* ; Membrane Potentials* ; Membranes* ; Papillary Muscles*

The value of double contrast arthrography in meniscal lesions was studied in 58 patients with clinical findings suggestive of meniscal lesion. In all cases, arthrotomy was performed and meniscal lesions were found in 52 patients. The arthrographic findings were compared to clinical and operative findings and the following results were obtained. 1. The diagnostic accuracy of arthrography in meniscal lesions was 84.5% 2. The diagnostic accuracy of the clinical findings was 69%, but the accuracy was increased to 91.4% with the aid of arthrographic findings. 3. Arthrography would be unnecessary if the clinical findings highly suggest the meniscal lesion. 4. Arthrography is thought to be a useful diagnostic method for meniscal lesions.
Arthrography ; Diagnosis ; Humans ; Knee ; Methods

No abstract available in English.
Arthroscopy ; Knee Joint ; Knee

A case is reported of downbeat nystagmus associated with compression of the root of vestibulocochlear nerve by vertebral arteries, which was revealed by magnetic resonance imaging. Chief complain of the patient was positional vertigo, which aggrevated at left decubitus position. Downbeat nystagmus was increased in left Dix-hall pike test. Tetsuo et al, reported downbeat nystagmus with compression of dolichoectatic vertebral arteries to the medulla oblongata and surgical neurovascular decompression of the dolichoectasia reverses the progression of symptoms if permanent neurologic damage has not already occurred.
Decompression ; Esocidae ; Humans ; Magnetic Resonance Imaging ; Medulla Oblongata ; Nystagmus, Pathologic ; Vertebral Artery* ; Vertebrobasilar Insufficiency ; Vertigo ; Vestibulocochlear Nerve*