Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0012833 (dizziness)
 9,689 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The objective of this study was to evaluate the impact of smoking habits on safety of trandolapril assessed by interrogation and by visual analogue scales (VAS). A total of 3402 hypertensive smokers (> or = 1 cigarette/d for at least 6 months) and non-smokers (no smoking or ceased at least 6 months previously) received trandolapril 2 mg/d for 4 weeks. The safety profile of trandolapril was assessed by both interrogation and by VAS. The VAS completed by the patients at D0 and D28 explored the following symptoms: asthenia, nausea, cough, headaches and dizziness. A significant change in cough VAS was previously defined by an at least 19 mm change. VAS analysis was performed on 2840 patients (1296 smokers and 1544 non-smokers), mean age 59 +/- 12 years. Smokers and non-smokers were significantly different for age 56 +/- 12 years vs. 62 +/- 12 years, sex ratio 74 per cent males vs. 45 per cent, history of hypertension 4.5 +/- 6.1 years vs. 5.3 +/- 6.5 years and cough VAS score at D0 35 +/- 26 mm vs. 20 +/- 21 mm. In the total population, 214 adverse events were reported by 177 patients (5.2 per cent). The most frequent adverse events were a cough (2.1 per cent), bronchitis (0.6 per cent), headaches (0.5 per cent), rhinitis (0.4 per cent), nausea (0.4 per cent) and asthenia (0.3 per cent). Cough was reported by 23 smokers (1.5 per cent) and by 49 (2.6 per cent) non-smokers (p = 0.02). In the VAS population, 151 adverse events were reported by 130 patients, 47 smokers (3.6 per cent) and 83 non-smokers (5.4 per cent, p = 0.03). The difference between the two groups was mainly due to a cough: 15 smokers (1.2 per cent) reported a cough vs. 38 non-smokers (2.5 per cent, p = 0.01) and 77 smokers (5.9 per cent) presented a significant change of cough VAS score vs. 124 non-smokers (8.0 per cent, p = 0.03). In this large scale study, 1.9 per cent of patients treated with trandolapril exhibited a cough. Smokers were less likely to present a cough. Use of VAS confirmed this trend.
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PMID:[Evaluation of the effect of tobacco on trandolapril tolerance]. 1070 42

The mechanism of action, pharmacokinetics, pharmacodynamics, clinical efficacy, and adverse effects of candesartan cilexetil are reviewed. Candesartan is an angiotensin II-receptor blocker (ARB). It is administered as a pro-drug that undergoes activation during gastrointestinal absorption. The agent is excreted mostly unchanged and has a terminal half-life of about nine hours (slightly longer in the elderly). Candesartan differs from other agents in its class in that it is tightly bound to angiotensin II type 1 receptors, allowing prolonged activity. In clinical trials, candesartan cilexetil has produced a dose-dependent effect when given in dosages of 2-32 mg/day. Observed trough-to-peak blood pressure ratios support a once-daily dosage regimen. The antihypertensive effect of candesartan cilexetil 4-16 mg/day was as great as that of enalapril 10-20 mg/day and amlodipine 5 mg/day and larger than that of losartan potassium 50 mg/day. Adding candesartan cilexetil to hydrochlorothiazide 12.5-25 mg/day and amlodipine 5 mg/day led to enhanced blood-pressure reductions and was well tolerated. It appears that candesartan can decrease renal perfusion without adversely affecting renal blood flow and may mediate a decrease in albuminuria in hypertensive patients with type 2 diabetes. No clinically important drug interactions have been reported. Adverse effects include headache, dizziness, nausea, diarrhea, and transient elevations in liver transaminases. The frequency of cough is similar to that seen with placebo. Candesartan cilexetil is an effective antihypertensive agent that can be used alone or in combination with other antihypertensive drugs. It is generally well tolerated and may be an option for patients who cannot tolerate angiotensin-converting-enzyme inhibitors because of cough.
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PMID:Candesartan cilexetil: an angiotensin II-receptor blocker. 1078 59

The aim of this large, randomized, double-blind, parallel-group study in hypertensive women was to compare the antihypertensive efficacy and effects on subjective symptoms and quality of life of the new angiotensin II type 1 (AT1) receptor blocker candesartan cilexetil, the angiotensin-converting enzyme inhibitor enalapril, and the diuretic hydrochlorothiazide (HCTZ). Women, aged 40 to 69 years, with a seated diastolic blood pressure (DBP) of 95 to 115 mm Hg, were randomized to candesartan cilexetil, 8 to 16 mg (n = 140), enalapril, 10 to 20 mg (n = 146), or HCTZ, 12.5 to 25 mg (n = 143), for 12 weeks; the higher doses were used if DBP was greater than 90 mm Hg after 6 weeks. Candesartan cilexetil lowered seated blood pressure by 17/11 and 19/11 mm Hg after 6 and 12 weeks of treatment, respectively. This reduction was greater (P < .01) than with enalapril (12/8 and 13/9 mm Hg) or HCTZ (12/7 and 13/8 mm Hg). The proportions of patients with controlled DBP (< 90 mm Hg) after 12 weeks of treatment with candesartan cilexetil, enalapril, or HCTZ were 60%, 51%, and 43%, respectively. Patients experienced less dry cough (P < 0.001) with candesartan cilexetil or HCTZ than with enalapril. No treatment differences were found in the incidence of dizziness and quality of life was well maintained in all groups. Compared with candesartan cilexetil and enalapril, HCTZ increased uric acid and decreased serum potassium (P < .001). In conclusion, candesartan cilexetil reduced blood pressure more effectively and was better tolerated than enalapril or HCTZ in women with mild to moderate hypertension.
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PMID:Angiotensin II type 1 (AT1) receptor blockade in hypertensive women: benefits of candesartan cilexetil versus enalapril or hydrochlorothiazide. 1082 1

The clinical characteristics of falciparum malaria were studied among 61 children, aged 0 to 14 treated at a reference center in Manaus, from October to December 1997. The symptoms observed were fever (98.4%), headache (80.3%), chills (68.9%), perspiration (65. 6%), myalgia (59.0%), nausea (54.1%), lumbar pain (49.2%), vomiting (49.2%), cough (45.9%), arthralgia (31.1%), diarrhea (34.4%), dyspnea (8.2%), convulsions (8.2%) and dizziness (4.9%). Pallor and anaemia were found more frequently in children under five years old. Anaemia was associated with high levels of parasitaemia. Fifty-eight (91.5%) patients had uncomplicated malaria, 3 (4.9%) had severe malaria and the lethality was 1.6%.
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PMID:[Clinical study of falciparum malaria in children in Manaus, AM, Brazil]. 1088 Nov 32

Angiotensin II (AT-II)-receptor antagonists are reviewed. Research focused on blocking the renin-angiotensin system (RAS) led to the discovery of angiotensin-converting-enzyme (ACE) inhibitors, which are effective in the treatment of hypertension but are associated with a high frequency of cough and other adverse effects. AT-II-receptor antagonists were developed as agents that would more completely block the RAS and thus decrease the adverse effects seen with ACE inhibitors. AT-II-receptor antagonists include losartan, valsartan, irbesartan, candesartan, eprosartan, telmisartan, and tasosartan. Several clinical trials have demonstrated that AT-II-receptor antagonists are as effective as calcium-channel blockers, beta-blockers, and ACE inhibitors in the treatment of hypertension and induce fewer adverse effects. The adverse effects of AT-II-receptor antagonists--dizziness, headache, upper-respiratory-tract infection, cough, and gastrointestinal disturbances--occur at about the same rate as with placebo. [corrected]. All available AT-II-receptor antagonists seem to be equally effective in reducing both systolic and diastolic blood pressure, and they are comparable in cost. Currently, AT-II-receptor antagonists are used either as monotherapy in patients who cannot tolerate ACE inhibitors or in combination with other antihypertensive agents. Angiotensin II-receptor antagonists are well tolerated and are as effective as ACE inhibitors in decreasing blood pressure.
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PMID:Angiotensin II-receptor antagonists: an overview. 1090 66

Self-reported cacosmia (i.e. feeling ill from the odour of xenobiotic substances) was studied in 151 young, healthy workers, unexposed to unpleasant odours and working in food stores without air-conditioning. Almost half (46%) of the sample reported feeling ill from the smell of chemical materials. Chemical odour intolerance induced headache, itching eyes, irritated or congested nose, dry and/or sore throat, cough, dizziness, and itching or rash. Cacosmic subjects showed a slight prevalence of the female sex, and had significantly higher symptom scores, anxiety, and depression than non-cacosmic subjects. Cacosmia may be related to multiple chemical sensitivity, sick-building syndrome and psychopathology. Individual variability in odour tolerance may substantially bias epidemiological studies on indoor air quality and health.
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PMID:Cacosmia in healthy workers. 1131 99

This study was designed to investigate the effect of delapril, an ACE inhibitor, and manidipine, a long action calcium antagonist, on persistent microalbuminuria in normotensive type 2 diabetic patients. Sixty type 2 diabetic patients were randomized to take delapril 30 mg/day or manidipine 10 mg/day for 48 weeks, in an open label design. Twenty eight of thirty subjects in the delapril group and twenty nine of thirty in the manidipine group completed the study. Urine albumin excretion as measured by the urinary albumin creatinine ratio decreased significantly in both groups (112.0+/-60.9 to 95.3+/-64.9 mg/g and 108.5+/-51.0 to 96.4+/-53.5 mg/g in the delapril and manidipine group respectively, p < 0.05, by paired t-test). Systolic and diastolic blood pressure were not significantly changed after treatment in the delapril group but significantly decreased in the manidipine group (130.9+/-7.1/80.2+/-6.1 to 127.2+/-7.1/78.0+/-5.3 mm/Hg, p < 0.05, by student's paired t-test). After 48 weeks of treatment, two patients in the delapril group and one patient in the manidipine group converted to normoalbuminuria (urinary albumin:creatinine ratio < 30 mg/g) and one patient in each group progressed to overt nephropathy (urinary albumin:creatinine ratio > 300 mg/g). There were no significant changes in fasting plasma glucose, HbA1c, serum fructosamine, creatinine, potassium and lipid profiles after 48 weeks of treatment in both groups. Two cases in the delapril group were withdrawn during the study because of an intolerable cough and one case in the manidipine group because of intolerable dizziness and headache. In conclusion, both delapril and manidipine are effective in the reduction of microalbuminuria in normotensive type 2 diabetic patients with persistent microalbuminuria.
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PMID:Effects on urinary albumin excretion and renal function changes by delapril and manidipine in normotensive type 2 diabetic patients with microalbuminuria. 1133 83

The present study evaluated self-reported subjective complaints (29 single items and 11 scales) at precessation, on quit day, and on Days 1, 2, 3, 7, 14, 21, and 28 after cessation in 46 healthy quitters who remained abstinent for the first month after cessation (biochemically confirmed). Also tested on the same schedule were 29 nonsmokers matched for age and gender. Specific criteria were set for transient and offset effects based on the direction, magnitude, and time course of changes in symptoms after cessation. Results indicated that single-item anger, anxiety, depression, difficulty concentrating, irritability, restlessness, dizziness, and nausea, and the Shiffman-Jarvik Stimulation/Sedation Subscale, the Perceived Stress scale, and the POMS anger, confusion, and tension subscales met the criteria for transient effects, and that single-item desire to smoke, cough, and headache, and the Shiffman-Jarvik Psychological Subscale met the criteria for offset effects. These findings help to clarify which subjective complaints after smoking cessation are transient effects and which are offset effects, a distinction with important implications for understanding nicotine dependence and for designing pharmacological and nonpharmacological interventions for smoking cessation.
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PMID:Self-reported abstinence effects in the first month after smoking cessation. 1143 24

Almost every second trekker or climber develops two to three symptoms of the high altitude illness after a rapid ascent (> 300 m/day) to an altitude above 4000 m. We distinguish two forms of high altitude illness, a cerebral form called acute mountain sickness and a pulmonary form called high altitude pulmonary edema. Essentially, acute mountain sickness is self-limiting and benign. Its symptoms are mild to moderate headache, loss of appetite, nausea, dizziness and insomnia. Nausea rarely progresses to vomiting, but if it does, this may anticipate a progression of the disease into the severe form of acute mountain sickness, called high altitude cerebral edema. Symptoms and signs of high altitude cerebral edema are severe headache, which is not relieved by acetaminophen, loss of movement coordination, ataxia and mental deterioration ending in coma. The mechanisms leading to acute mountain sickness are not very well understood; the loss of cerebral autoregulation and a vasogenic type of cerebral edema are being discussed. High altitude pulmonary edema presents in roughly twenty percent of the cases with mild symptoms of acute mountain sickness or even without any symptoms at all. Symptoms associated with high altitude pulmonary edema are incapacitating fatigue, chest tightness, dyspnoe at the minimal effort that advances to dyspnoe at rest and orthopnoe, and a dry non-productive cough that progresses to cough with pink frothy sputum due to hemoptysis. The hallmark of high altitude pulmonary edema is an exaggerated hypoxic pulmonary vasoconstriction. Successful prophylaxis and treatment of high altitude pulmonary edema using nifedipine, a pulmonary vasodilator, indicates that pulmonary hypertension is crucial for the development of high altitude pulmonary edema. The primary treatment of high altitude illness consists in improving hypoxemia and acclimatization. For prophylaxis a slow ascent at a rate of 300 m/day is recommended, if symptoms persist, acetazolamide at a dose of 500 mg/day is effective. Mild acute mountain sickness may also be treated with the same dose acetazolamide. Glucocorticoids are the first line treatment of the malignant form of acute mountain sickness. Nifedipine is effective only for the prophylaxis and treatment of high altitude pulmonary edema.
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PMID:[Mountaineering and altitude sickness]. 1144 1

Ethylene oxide is used as a sterilizer, a solvent, a plasticizer and in the manufacture of special solvents, antifreeze, polyester resins and non-ionic surfactants. Its toxicity is caused by an alkylating reaction with most organic substances in the body. Four workers, without any protection, managed the leakage of ethylene oxide from the collecting tank improperly on July 29, 2000. In the same factory, the overflow of ethylene oxide in process resulted in leakage of ethylene oxide again on Aug. 7, 2000. Two workers were poisoned despite wearing full-face respirators with ethylene oxide approved canisters. In these two events, the workers all smelled an ether-like odor. Six workers experienced nausea, vomiting, chest tightness, shortness of breath, dizziness, cough and ocular irritation. One worker had transient loss of consciousness. Oxygen therapy and supportive care were used. Patients were discharged in stable condition. The permissible exposure limit of ethylene oxide in air is 1 ppm as an eight hour TWA. Above 50 ppm, the odor threshold, a positive-pressure supplied air respirator is needed to protect the worker. Full-face respirators with ethylene oxide approved canisters could not protect our cases who smelled the odor and were exposed to an unknown concentration. It is important to wear positive-pressure self-contained breathing apparatuses equipped with full facepieces to clean up the contamination area and rescue the patients.
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PMID:Two episodes of ethylene oxide poisoning--a case report. 1159 64


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