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Query: UMLS:C0018681 (headache)
 56,091 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The delayed health effects from accidental exposure to bromine vapors in a group of six people were evaluated. During the acute exposure, they had only some respiratory symptoms and skin burns of first to second degree involving small areas. All were treated in one hospital and released within 1-4 d. Six to 8 wk later, some still had health complaints such as cough, shortness of breath, chest tightness, eye irritation, headache, dizziness, fatigue, and memory, sleep, and sexual disturbances, but no objective laboratory or clinical evidence of effects. Mechanisms that might have led to manifestations of such complaints 1-2 mo after the accident are discussed and possible ways to alleviate similar situations are suggested.
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PMID:Delayed health sequelae of accidental exposure to bromine gas. 162 37

The sick-building syndrome (SBS) is defined as the occurrence of an excessive number of subjective complaints by the occupants of a building. These complaints include headache, irritation of the eyes, nose, and throat, lethargy, inability to concentrate, objectionable odors, and less frequently, nausea, dizziness, chest tightness, etc. These complaints will always be reported by a fraction of the occupants of any building if a questionnaire is administered that asks the respondent to recall any subjective symptoms they remember having had in the last 2 weeks or or over some period of time. It is often considered that SBS symptom reports have a minimum prevalence of about 15 to 20% for a 2-week recall period. SBS symptoms reported by 30% or more of occupants are indicative of conditions in the building environment that warrant attention. It is not often that a clear, single cause is responsible for the excess symptom reports. The following factors, often in combinations, are seen to contribute to SBS: outdoor air supply that is inadequate, ventilation distribution or effectiveness that is inadequate, the presence of temporary or long-term sources of contaminants such as tobacco smoke, adhesives, composite materials such as chipboard, and the growth of microorganisms in the HVAC equipment or in carpets or other furnishings. Depending on which causes contribute, the condition may be intermittent or even temporary. Psychosocial factors such as labor-management relations and satisfaction or dissatisfaction with other factors in the work environment can have a profound influence on the level of response of the occupants to their environment. Although hard data are difficult to collect, it is likely that productivity in the office environment is sensitive to conditions causing SBS.
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PMID:Sick-building syndrome. 182 87

A 12-year-old boy had a long history of headache since the age of 4 years. Numbness and weakness of the upper extremities and chest tightness, especially in the morning, were noted since 2 years ago. The headache became more severe and frequent and attacked even in sleep since one year ago. Arnold-Chiari type 1 malformation, cervical syringomyelia and mild hydrocephalus were demonstrated by MRI scan of the central nervous system. Headache and other symptoms disappeared immediately after surgical intervention. The formation of syringomyelia may be multifactorial, but Arnold-Chiari type 1 malformation and uneventful birth history play an important role in the underlying cause of this case. We presented this youngest case who had Arnold-Chiari type 1 malformation and onset of headache from the age of 4 years, discussed the pathogenesis of syringomyelia and reviewed the literature.
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PMID:Arnold-Chiari type 1 malformation and syringomyelia. 217 27

Health and environmental assessment of the consequences of accidental contamination of an area in the Negev desert is described and the effects of exposure to bromine vapor in 6 persons evaluated. They were only mildly affected during the acute spillage of the bromine, with some respiratory symptoms and first and second degree skin burns of small exposed areas on the legs. All were treated in hospital and were released within 1-4 days. 6-8 weeks later they demonstrated a complex array of complaints, including cough, shortness of breath, chest tightness, eye irritation, headache, dizziness, fatigue, memory disturbances, sleep and sexual disturbances. These complaints could not be substantiated by objective clinical or laboratory examination. There was thus obvious magnification of the complaints 1-2 months after the accident.
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PMID:[Late health sequelae of accidental bromine exposure]. 225 10

Six electrical workers accidentally exposed to degradation products of sulphur hexafluoride (SF6) during electrical repair work were followed up for one year. One degradation product, sulphur tetrafluoride (SF4), was identified from worksite measurements. Unprotected exposure in an underground enclosed space occurred for six hours over a 12 hour period. Initial symptoms included shortness of breath, chest tightness, productive cough, nose and eye irritation, headache, fatigue, nausea, and vomiting. Symptoms subsided when exposure was interrupted during attempts to identify the cause of the problem. Although exposure ended after several hours, four workers remained symptomatic for between one week and one month. Pulmonary radiographic abnormalities included several discrete areas of transitory platelike atelectasis in one worker, and a slight diffuse infiltrate in the left lower lobe of another. One worker showed transient obstructive changes in tests of pulmonary function. Examination at follow up after one year showed no persistent abnormalities. Preliminary data from this paper were presented at the VIIth international pneumoconioses conference. Pittsburgh, PA, August 1988.
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PMID:Pulmonary effects of acute exposure to degradation products of sulphur hexafluoride during electrical cable repair work. 227 90

Personal samples of nitrogen dioxide (NO2) and respirable particulate (RP) were collected over the shift on 232 workers in four diesel bus garages. Response was assessed by an acute respiratory questionnaire and before and after shift spirometry. Measures of exposure to NO2 and RP were associated with work-related symptoms of cough; itching, burning, or watering eyes; difficult or labored breathing; chest tightness; and wheeze. The prevalence of burning eyes, headaches, difficult or labored breathing, nausea, and wheeze experienced at work were higher in the diesel bus garage workers than in a comparison population of battery workers, while the prevalence of headaches was reduced. Mean reductions in forced vital capacity (FVC), forced expiratory volume in 1 sec (FEV1), peak flow, and flows at 50 and 75% of FVC were not obviously different from zero. There was no detectable association of exposure to NO2 or respirable particulate and acute reductions in pulmonary function. Workers who often had respiratory work-related symptoms generally had a slightly greater mean acute reduction in FEV1 and FEF50 than did those who did not have these symptoms, but these differences were not statistically significant.
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PMID:Epidemiological-environmental study of diesel bus garage workers: acute effects of NO2 and respirable particulate on the respiratory system. 243 31

This is a report of the clinical analysis of 250 cases of dengue fever-like patients during the 1987-1988 epidemic in Southern Taiwan at Harn's clinic, Kaohsiung city. The results were: The peak age groups were between 20-40 years old. The ratio of male to female was 1:14. 98% patients presented with fever of mainly 3 to 6 days duration. 98% reported body pain, which included headache (82%), generalized soreness (65%), low back pain (50%). 95% patients had GI symptoms, such as anorexia (73%), nausea (60%), vomiting (45%). 97% patients complained of dizziness and weakness, and 22.4% patients had a bleeding tendency. The common bleeding sites were involving the subcutaneous (skin), gum, uterus, nasal cavity, GI tract, retina, and GU tract. The eruption rate was 78%. A majority of rashes appeared on the extremities, and then spread to the trunk. Less common symptoms were insomnia, chest tightness, urgency of urination, cough, running nose, palpitation, and shock. 45% patients were noted with hair loss. The hair loss was the latest presenting symptom, which tended to occur about two months after the recovery stage, and lasted for about one month. On physical examination, 62.6% patients had conjunctivitis, while only 1.3% had lymph node enlargement. Usually, the whole clinical course lasted for 7 to 14 days. Laboratory examination showed that leukopenia was noted from the second day and reached the lowest count on the fifth day, and recovered on 9th or 10th day. In 247 blood sera tested serologically for dengue fever, 84 were confirmed, while 157 were not confirmed yet due to patients' reluctance to accept a second blood drawing.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Clinical study on dengue fever during 1987-1988 epidemic at Kaohsiung City, southern Taiwan]. 273 68

To assess the risk of byssinosis in a cotton textile factory in Cameroon a preliminary study was conducted on a random sample of 125 men from production areas and 68 men from non-production areas. Symptoms were assessed by a questionnaire, which also included questions regarding sleep; peak expiratory flow rate (PEF) was measured with a miniature peak flow meter at the end of a working day and total dust concentrations were assessed by static and personal sampling with Casella dust samplers giving values of 6.4 +/- 2.6 mg/m3 (m +/- SD) in production areas and 1.7 +/- 0.7 mg/m3 in control areas. Exposed subjects had significantly more symptoms (particularly in smokers) and lower PEF values than controls (408 +/- 961/min v 468 +/- 701/min, p less than 0.001). Twenty three exposed subjects (18%) reported chest tightness on returning to work after the weekly break (compared with one control, p less than 0.01). Subjects with byssinosis had lower PEF values than those without chest tightness (356 +/- 501/min v 426 +/- 951/min, p less than 0.01), more chronic bronchitis (52% v 6%, p less than 0.001), they were more often smokers (61% v 31%, p less than 0.05), and came generally, though not exclusively, from the opening carding spinning department with the highest concentrations of total dust (8 +/- 2 mg/m3) and an estimated prevalence of byssinosis of 28%. There were no significant differences in sleep related symptoms between the exposed and controls, though the 23 subjects with byssinosis tended to report more snoring (48%), early morning headache (48%), and sleep improvement over the working week (44%) than all the other subjects (28%, 24%, and 24% respectively, p less than 0.1).
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PMID:Byssinosis in a textile factory in Cameroon: a preliminary study. 321 5

An acute febrile illness associated with unloading silos occurs more frequently than any other farm associated respiratory illness in mid state New York. This report describes 29 cases of organic dust toxic syndrome (also known as pulmonary mycotoxicosis) occurring in 24 men and one woman with a mean age of 29 years. In 16 instances more than one worker was exposed to the dust, and in 12 of these shared exposures more than one worker became ill. Patients presented 5.3 (SD 3.3) hours after inhalation of organic dust and mould with fever (79%), myalgia (76%), chest tightness (72%), cough (66%), and headache (59%). The mean temperature was 38.7 degrees C and the mean white blood cell count 13.2 X 10(9)/l. In contrast to patients with allergic alveolitis, nearly all these patients had normal breath sounds, chest radiographs, and arterial oxygen saturation. Tests for precipitating antibodies to farmer's lung disease antigens gave negative results in all 26 episodes in which they were done; of these, 10 had no evidence of precipitating antibodies to an aqueous extract of the silage associated with their own illness. Organic dust toxic syndrome appears to be a common and substantial respiratory hazard to young farm workers. Despite being frequently mis-diagnosed as farmer's lung, organic dust toxic syndrome is clearly a distinctly different disease process.
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PMID:Organic dust toxicity (pulmonary mycotoxicosis) associated with silo unloading. 359 53

Animal studies suggest that pulmonary oxygen toxicity proceeds more slowly in diluted oxygen breathing mixtures than in pure oxygen at the same inspired partial pressure. We exposed 12 healthy subjects to air at 5 ATA (PiO2 = 1.05 ATA) in a hyperbaric chamber for 48 h, and compared the rate of development of symptoms of O2 toxicity to rates seen in previous studies using 100% O2 at 1 ATA. Symptoms consisted of chest tightness, cough, substernal discomfort, exertional dyspnea, anorexia, nausea and vomiting, headache and digital paresthesias starting at about 12 h, and continuing several days into the recovery period. Pulmonary function changes consisted of significant decrements in vital capacity, flow rates, and DLCO. Initial recovery was in a 0.50 ATA oxygen atmosphere, with the majority of subjects showing definite recovery in both symptoms and pulmonary function. Subjects showed complete recovery in about 8 d, although symptoms of fatigue and exertional dyspnea continued for a month in some cases. In contrast, none of the above changes were noted in an additional 6 subjects exposed to a 5 ATA environment with 6% oxygen (PiO2 = 0.30 ATA). No change in resting gas exchange, as indicated by alveolar-arterial oxygen gradients, was detected in either group. Comparison of these data to that for pure oxygen studies reveals no significant difference in the progression or character of pulmonary oxygen toxicity.
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PMID:Progression of and recovery from pulmonary oxygen toxicity in humans exposed to 5 ATA air. 361 41


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