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Query: UMLS:C0020538 (hypertension)
 170,190 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Studies covered structural and functional state of cardiovascular system in patients with chronic dust bronchitis associated with arterial hypertension. Echocardiographic data helped to specify peculiarities for patients with chronic dust bronchitis associated with arterial hypertension in accordance with respiratory failure grade.
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PMID:[Structural and functional cardiac changes in patients with chronic dust bronchitis associated with arterial hypertension]. 1681 1

Syncope is a transient, self-limiting loss of consciousness usually leading to a fall. The onset of syncope is relatively rapid and the subsequent recovery is spontaneous, complete and usually prompt. As syncope is a symptom, the aim of the diagnostic work-up is to assess whether there is a syncope or another "nonsyncopal" condition, whether there are clinical features suggesting the diagnosis, whether the patient has an increased risk for mortality or recurrent episodes, and whether the patient must be admitted to hospital. The diagnostic work-up is given for two cases: a 68-year-old male with insulin-dependent diabetes experienced his first syncope after lunch. The clinical judgment suggested a neurocardiogenic syncope. The initial evaluation consisting of history, physical examination and twelve-lead ECG evidenced that the patient received several drugs for arterial hypertension so that an orthostatic hypotension had to be ruled out. The twelve-lead ECG showed a left bundle branch block suggesting an arrhythmic syncope and the need for additional diagnostics: an echocardiography mainly to assess the left ventricular function which was normal, and a 24-h long-term ECG to rule out arrhythmias which were not observed. The patient gets an explanation of his risk and the reassurance about his excellent prognosis and some preventive lifestyle modifications such as sufficient volume intake. The second case is a sick 58-year-old male with tracheal cough und aggravating breathing who had a syncope on his way to the toilette. The cause of the syncope was related to a bronchitis with high fever. The patient received a causative treatment and recovered completely.
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PMID:[Syncope]. 1718 Jun 54

There have been case reports about adverse effects to glucose homeostasis related to gatifloxacin use. The authors report an elderly, non-diabetic patient who developed severe hyperglycemia after receiving oral gatifloxacin 400mg/d. He was a 73-year-old male, patient with a history of hypertension, cured vesical pheochromocytoma, idiopathic dilated cardiomyopathy, chronic renal insufficiency (baseline serum creatinine of 1.7 mg/dL), and gouty arthritis admitted to the hospital with a diagnosis of acute bronchitis. Seven days after initiating gatifloxacin, his symptoms were improved. Subsequently he developed polyuria, polydipsia, and fatigue with an increase in serum creatinine to 2.8 mg/dL, and random plasma glucose levels elevated to 903 mg/dL. Gatifloxacin was stopped. Intravenous regular insulin infusion was administered. Euglycemia was achieved within 8 hours after fluid rehydration and only low dose insulin was required He maintained normal glucose levels without any antidiabetic drugs afterward. Old age and renal impairment were considered significant contributing factors for this hyperglycemic adverse event from gatifloxacin.
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PMID:Advancing age and renal impairment as important predisposing factors of gatifloxacin-induced hyperglycemia in non-diabetes patients. 1742 37

Cecropia glaziovii Sneth is a common tree at the Southeastern Brazilian coast. As many other species of the genus, it shares the reputed folk use to treat heart failure, cough, asthma and bronchitis. The plant has been cultivated under controlled conditions and the 2% aqueous extract (AE) prepared with the dried leaves was standardized by its chemical contents on catechins, flavonoids and procyanidins. The present paper reports the antihypertensive activity of AE and of n-butanol fraction (BuF), an enriched semi-purified butanolic fraction used to isolate the main chemical constituents. Oral administration of AE and BuF induced hypotension in normotensive rats. The effect of AE (0.5 g/kg/bi, p.o.) was time and dose-dependent peaking at 2-3 weeks after daily administration. BuF was faster but not more active than AE. Both extracts decreased the hypertension of spontaneous hypertensive rats, the hypertension induced in rats by L-NAME treatment and that induced by constriction of one renal artery. The antihypertensive effect was maintained for as long as 60 days of treatment and was reversible upon drug washout at the same rate of its establishment. Acute i.v. administration of BuF to anesthetized rats induced a fast short-lasting hypotension and inhibited the pressor responses to noradrenaline, angiotensin I and angiotensin II by 40%. These results were indirect indications that the hypotension induced by AE is not related to ACE inhibition, increased NO synthesis, or specific blockade of alpha1 and AT1 receptors. It can be suggested that BuF interferes with the calcium handling mechanisms in smooth muscle cells and neurons. Intravenous injection of five out of nine compounds isolated from BuF produced immediate but short-lasting hypotension that does not correlate with the onset of the hypotension after oral treatment. This finding suggests that they may not be the compounds directly responsible for the delayed and sustained hypotension after per os administration of AE. The many compounds isolated from AE are under evaluation to determine its pharmacokinetics, mechanisms of action and interactions necessary to yield the plant effect. Although its mechanism is still unknown, AE seems to be an effective and safe antihypertensive phytomedicine.
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PMID:Antihypertensive effect of a standardized aqueous extract of Cecropia glaziovii Sneth in rats: an in vivo approach to the hypotensive mechanism. 1744 57

Lay health care workers (promotores) interviewed 313 female members of remote Indian groups in northern Baja California, Mexico regarding: (1) common childhood and adult illnesses and endorsement of 'traditional' and modern therapies; (2) illness causation beliefs and knowledge of biomedical principles; and (3) the relation of ethnic identity with concepts of effective biomedical and non-biomedical therapy. The most common illnesses/symptoms reported in adults were diabetes, hypertension, high cholesterol, cold/flu, diarrhoea, low/variable blood pressure and arthritis; and in children, cold/flu, diarrhoea, bronchitis, cough, fever, empacho and dehydration. Of 285 informants, more reported at least one childhood disorder than who reported at least one adult disorder was most helped by traditional therapy [83 (29.1%) versus 44 (15.4%); P<0.0001] and both therapies [81 (28.4%) versus 42 (14.7%); P<0.001]. They reported eight naturalistic and two personalistic illness causes and manifested variable biomedical knowledge. Indian or mixed Indian/Mexican ethnic self-identity predominated, and Indian identity was unrelated to endorsement of traditional therapy. The 'biocultural synthesis' is a useful theoretical framework for viewing the findings. The Indians' pluralistic concepts have important implications for public health care workers and biomedical practitioners.
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PMID:Northern Baja California Indian women's concepts of illness and healing: Implications for public health and clinical practitioners. 1985 51

The estimation of structural-functional state of right and left heart before and after loading test at patients suffered from chronic mechanic bronchitis in combination with ischemic heart disease and arterial hypertension is carried out using an echocardiography method. It is revealed that the combination of chronic mechanic bronchitis, ischemic heart disease and arterial hypertension results in remodelling both ventricles and hastens chronic pulmonary heart development.
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PMID:[Structural and functional changes in myocardium at rest and under exertional test in dust bronchitis patients having coronary heart disease and arterial hypertension]. 2009 15

Sixty-three hypertensive patients treated with guanethidine, usually in conjunction with chlorthalidone, were followed up for periods as long as 2(1/2) years. The guanethidine dosage was not found to be related to the size of the patient, duration of hypertension or its severity. Two patients developed intolerable syncope without satisfactory control of blood pressure. No aggravation of bronchitis or diabetes was observed. Faintness and diarrhea occasioned by the drug lessened with time. Symptomatic improvement was noted in the majority, as was improvement in the optic fundus, the electrocardiogram and the heart size. Four deaths were unrelated to therapy, but were the result of complications of underlying vascular disease.
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PMID:Long-Term Follow-up of Patients with Hypertensive Disease Treated with Guanethidine. 2032 35

Our earlier studies of hepatitis C virus (HCV) infection rates among blood donors at the Kyiv Municipal Blood Center revealed a 3.45% HCV+ prevalence in these "healthy" hosts. In the study here, we analyzed HCV (as well as cytomegalovirus [CMV]) prevalence among Chernobyl nuclear power plant (NPP) accident sufferers--cleanup workers, local residents, NPP workers, and convalescent patients--who suffered acute radiation syndrome (ARS) as a result of the 1986 accident, and individuals who had not been exposed to ionizing radiation (IR). Serological analyses of antibodies against each pathogen (via enzyme-linked immunosorbent assay [ELISA]) revealed the highest HCV (i.e., 27.2%) and CMV (85.6%) prevalence in the convalescent hosts. Though the HCV prevalence (reflecting a current/past infection) among the cleanup workers (and other groups) was lower (i.e., 11-25%), viral presence was "associated" with a higher incidence of selected somatic diseases, for example, thyroiditis, goiter, hypertension, Type 1 diabetes, chronic hepatitis/gastritis, in the cleanup workers. A similar scenario with respect to CMV was also seen, i.e., lower prevalence rates [relative to in ARS patients] and "association" between CMV status and incidence of chronic gastritis, arthritis, and bronchitis, in the cleanup workers and IR-non-exposed controls. Further, irrespective of CMV status, there was a clear delineation between incidence rate(s) of each of the pathologies and whether or not the person was/was not exposed in 1986. We also investigated, due to a high incidence of chronic lymphocytic leukemia (CLL) among Chernobyl sufferers, if there was homology between immunoglobulins (Igs) generated by these transformed cells and known antiviral and antimicrobial Igs. Polymerase chain reaction (PCR) analyses of Ig heavy-chain variable (IgHV) genes in cells from CLL patients who were/were not exposed in 1986 revealed a significant homology of some IgHV genes with Igs directed against infectious agents. However, no differences were found between the sequences from IR-exposed and IR-non-exposed CLL patients. Based on the findings here, we conclude that a past/ongoing presence of certain viral infections (i.e., CMV and/or HCV) in a host can modify (aggravate) the clinical course of certain somatic (i.e., non-tumor) diseases and promote malignancies (i.e., CLL), and that each of these outcomes could be modulated as a result of that host's past exposure to IR.
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PMID:Persistent infections and their relationship with selected oncologic and non-tumor pathologies. 2051 8

This study examined the relationship between volatile sulfur compounds (VSCs), including hydrogen sulphide (H(2)S), methyl mercaptan (CH(3)SH) and dimethyl sulphide [(CH(3))(2)S], in mouth air of patients and a history of systemic disease. The subjects were 387 residents (174 males and 213 females) of Fukuoka Prefecture, Japan, who participated in an oral and systemic health survey for elderly persons (mean age: 61.8, s.d. 2.8 years). The VSCs were measured using a portable gas chromatograph (OralChroma). The H(2)S concentrations were significantly greater in the 132 subjects with a history of hypertension and the 41 subjects with a history of respiratory disease, including pneumonia, pulmonary emphysema and bronchitis, than in those without such a history. The CH(3)SH concentrations were significantly greater in those with a history of hypertension. The 16 subjects with a history of cerebrovascular disease, including intracerebral haemorrhage, cerebral infarction, and subarachnoid haemorrhage, and the 58 subjects with a history of liver disease, including hepatitis, alcoholic liver disease, drug-induced liver injury, fatty liver and liver cirrhosis, showed significantly greater (CH(3))(2)S concentrations (p < 0.05). These results suggest an association between the production of VSCs in mouth air and systemic diseases such as hypertension as well as respiratory, cerebrovascular and liver diseases.
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PMID:Relationship between volatile sulfur compounds in mouth air and systemic disease. 2138 56

The Fontan procedure refers to any operation that results in the flow of systemic venous blood to the lungs without passing through a ventricle. It is performed to treat several complex congenital heart abnormalities including tricuspid atresia, pulmonary atresia with intact ventricular septum, hypoplastic left heart syndrome, and double-inlet ventricle. The original Fontan procedure included direct anastomosis of the right atrium to the main pulmonary artery; however, multiple modifications have been employed. Creation of Fontan circulation is palliative in nature, with good results in patients with ideal hemodynamics and substantial morbidity and mortality in those with poor hemodynamics. Complications of Fontan circulation include exercise intolerance, ventricular failure, right atrium dilatation and arrhythmia, systemic and hepatic venous hypertension, portal hypertension, coagulopathy, pulmonary arteriovenous malformation, venovenous shunts, and lymphatic dysfunction (eg, ascites, edema, effusion, protein-losing enteropathy, and plastic bronchitis). Magnetic resonance imaging is best for postoperative evaluation of patients who underwent the Fontan procedure, and cardiac transplantation remains the only definitive treatment for those with failing Fontan circulation.
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PMID:The Fontan procedure: anatomy, complications, and manifestations of failure. 2141 90


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