In August 2001 we began to use WELPAS (a benzalkonium chloride solution) as part of our cost-containment drive, replacing self-made glycerol-added ethanol, which had been used for a long time to prevent nosocomial infections. Since then, blackish stains have become particularly noticeable here and there on the floorboards of the passageways in the hospital wards. The newly adopted quick-drying hand disinfectant was suspected as the culprit. To find the real cause of the dirt, we built a hallway similar to the real passageway for experiment. The disinfectant agents used were WELPAS, WELLUP (chlorhexidine gluconate), HIBISOFT (chlorhexidine gluconate), medicinal ethanol, cationic detergent solution, HIBITANE solution (chlorhexidine hydrochioride) and glycerol solution. These agents and distilled water were dropped on a limited area of the floor respectively for comparison of the degrees of dirt. The cationic detergent solution and WELPAS containing cationic detergent left blackish stains that were hardest to remove. From this finding, it was inferred that the cationic detergent solution was responsible for the dirt on the floor. So we decided to switch to a quick-drying hand disinfectant which does not contain cationic detergents. After considering economic benefit, we chose WELLUP which contains medicinal alcohol plus chlorhexidine gluconate and put it into actual use in October 2003. Since then, the hospitall floors have become unmistakalbly clean.
Solutions ; Disinfectants ; Hand ; Detergents ; Desiccation

In August 2001 we began to use WELPAS (a benzalkonium chloride solution) as part of our cost-containment drive, replacing self-made glycerol-added ethanol, which had been used for a long time to prevent nosocomial infections. Since then, blackish stains have become particularly noticeable here and there on the floorboards of the passageways in the hospital wards. The newly adopted quick-drying hand disinfectant was suspected as the culprit. To find the real cause of the dirt, we built a hallway similar to the real passageway for experiment. The disinfectant agents used were WELPAS, WELLUP (chlorhexidine gluconate), HIBISOFT (chlorhexidine gluconate), medicinal ethanol, cationic detergent solution, HIBITANE solution (chlorhexidine hydrochioride) and glycerol solution. These agents and distilled water were dropped on a limited area of the floor respectively for comparison of the degrees of dirt. The cationic detergent solution and WELPAS containing cationic detergent left blackish stains that were hardest to remove. From this finding, it was inferred that the cationic detergent solution was responsible for the dirt on the floor. So we decided to switch to a quick-drying hand disinfectant which does not contain cationic detergents. After considering economic benefit, we chose WELLUP which contains medicinal alcohol plus chlorhexidine gluconate and put it into actual use in October 2003. Since then, the hospitall floors have become unmistakalbly clean.

Computed Tomography(CT) has been of great value in planning treatment for patients with hypertensive intracerebral hemorrhage. The patient with a moderate-sized extracapsular hematoma is usually mild. Such a patient, as a rule, should be treated conservatively. However if the patients shows progressive deterioration or mass signs on the CT, he will be subjected to surgery. The patient with putaminal hemorrhage involving the internal capsule is also indicated for surgery. The patient with a large hematoma extending to the thalamus and the hypothalamus extending to the thalamus and the hypothalamus shows poor prognosis and never indicated for surgery. From the viewpoint of hematoma volume, more than 25ml in size, indicates surgical removal. The acute hydrocephalus following intracerebral hemorrhage confirmed by CT, requires a ventricular drainage, especially if the case of ventricular component is present, in the third and/or fourth ventricles. In the management of hypertensive intracerebral hemorrhage, the choice of treatment, surgical or conservative, is a very important decision. In spite of the fact that surgical treatment of the disease has been actively carried out for the last decade in various facilities in Japan, the indication for surgery is still in controversy in the field of neurosurgery. Today, it is noted that preoperative conditions of the patient such as age, state of consciousness, location of hematoma and timing of operation are closely related to operative results3). As it is well known, computed tomography(CT) will be of great help in the choice of treatment for hypertensive intracerebral hemorrhage. CT gives us not only definite diagnosis of intracerebral hemorrhage but also shows us variable intracranial pathology. Information relating to the exact location of hematoma, estimated hematoma-volume, presence or absence of ventricular component, size of the ventricles and mass effect from displacement of midline structures on CT, will be of extremely valuable in planning further treatment.
Cerebral Hemorrhage ; Consciousness ; Diagnosis ; Drainage ; Fourth Ventricle ; Hematoma ; Hemorrhage* ; Humans ; Hydrocephalus ; Hypothalamus ; Internal Capsule ; Intracranial Hemorrhage, Hypertensive ; Japan ; Neurosurgery ; Pathology ; Prognosis ; Putaminal Hemorrhage ; Thalamus

The initial case was a man in his 50s. He received 2 cans a day of ProSure^®, while undergoing radiation and chemotherapy with carboplatin and docetaxel for adenocarcinoma in the lung. His body weight rose from 62.4 kg on admission to 63.7 kg before discharge, CRP decreased from 3.08 mg/dl to 0.48 mg/dl, and albumin fell from 3.6 g/dl to 3.5 g/dl. The second case was a man in his 60s. He was diagnosed as having squamous cell carcinoma in the lung and administered with 2 cans a day of ProSure^® and antibiotics. One-and-a-half months later, he underwent chemotherapy with carboplatin and S-1 and radiation. His body weight stood at 47.0 kg on admission and 47.2 kg before discharge, CRP dropped from 15.45 mg/dl to 3.26 mg/dl, and albumin was retained at 2.6 g/dl to 2.7g/dl. The administration of ProSure^® brought about improvements in the nutritional status and anti-inflammatory effects in the patients with chemotherapy.

A clinico-epidemiological analysis was performed of 2,414 consecutive stroke patients who were treated in our hospital during the 6-year period from 1997 through 2003. All the patients were neurologically examined and diagnostic studies were made by use of computed tomography. Cerebral infarction, cerebral hemorrhage, and subarachnoid hemorrhage accounted for 68%, 22%, and 10% of the stroke cases, respectively. The incidence of these subtypes of stroke in this region during the past 20 years was characterized by a singnificant decrease in cerebral hemorrhage, and an increased proportion of cerebral infarction. Men exceeded women in the incidences of both cerebral infarction and hemorrhage, whereas characteristically women far exceeded men in subarachnoid hemorrhage. The incidence reached a peak in the 70-79 age group regardless of the subtypes of stroke, and 64% of the entire stroke patients were those 70 and older. Women were found to suffer from stroke at much older age than men. As to the site of hemorrhage, putaminal hemorrhage was the most frequent, experienced by 36% of the patients, followed by thalamic hemorrhage in 34% of the patients. Putaminal and pontine hemorrhages predominated in the age groups younger than 60;thalamic, cerebellar and subcortical hemorrhages were predominant in the age groups older than 70. The incidence of these subtypes of hemorrhage during the past 20 years was characterized by a dramatic decrease in putaminal hemorrhage in a younger population, and a significant increase in thalamic, cerebellar, and subcortical hemorrhages in an older population.
Cerebrovascular accident ; Hemorrhage ; seconds ; Age Group Unspecified ; incidence of cases

BACKGROUND: We previously demonstrated that continuous exposure to nitrous acid gas (HONO) for 4 weeks, at a concentration of 3.6 parts per million (ppm), induced pulmonary emphysema-like alterations in guinea pigs. In addition, we found that HONO affected asthma symptoms, based on the measurement of respiratory function in rats exposed to 5.8 ppm HONO. This study aimed to investigate the dose-response effects of HONO exposure on the histopathological alterations in the respiratory tract of guinea pigs to determine the lowest observed adverse effect level (LOAEL) of HONO. METHODS: We continuously exposed male Hartley guinea pigs (n = 5) to four different concentrations of HONO (0.0, 0.1, 0.4, and 1.7 ppm) for 4 weeks (24 h/day). We performed histopathological analysis by observing lung tissue samples. We examined samples from three guinea pigs in each group under a light microscope and measured the alveolar mean linear intercept (Lm) and the thickness of the bronchial smooth muscle layer. We further examined samples from two guinea pigs in each group under a scanning electron microscope (SEM) and a transmission electron microscope (TEM). RESULTS: We observed the following dose-dependent changes: pulmonary emphysema-like alterations in the centriacinar regions of alveolar ducts, significant increase in Lm in the 1.7 ppm HONO-exposure group, tendency for hyperplasia and pseudostratification of bronchial epithelial cells, and extension of the bronchial epithelial cells and smooth muscle cells in the alveolar duct regions. CONCLUSIONS These histopathological findings suggest that the LOAEL of HONO is < 0.1 ppm.
Alveolar Epithelial Cells ; drug effects ; Animals ; Bronchi ; drug effects ; Dose-Response Relationship, Drug ; Emphysema ; chemically induced ; Epithelial Cells ; drug effects ; Guinea Pigs ; Hyperplasia ; chemically induced ; Inhalation Exposure ; adverse effects ; Lung ; drug effects ; pathology ; ultrastructure ; Male ; Microscopy, Electron, Scanning ; Microscopy, Electron, Transmission ; Myocytes, Smooth Muscle ; drug effects ; Nitrous Acid ; toxicity