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Query: UMLS:C0037315 (sleep apnea)
 8,000 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Ischaemic stroke occurs most often during the morning hours before noon. In recent studies the peak time of onset has been between 10.00 and 12.00 hours. Snoring every night or almost every night (habitual snoring) is in relation with ischaemic stroke. Snoring occasionally, on the contrary, is not significantly related with stroke. Habitual snoring is the most typical sign of obstructive sleep apnoea syndrome and it is strongly associated with being overweight. Other possible pathophysiological factors that are in relation with habitual snoring, obstructive sleep apnoea and stroke include arterial hypertension, changes in fibrinolytic activity, adult onset diabetes and smoking. It remains to be seen whether nightly occurring partial upper airway obstruction (habitual snoring) with intrathoracic pressure changes is an independent risk factor of ischaemic stroke, There is recent evidence that everything cannot be explained by other known risk factors.
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PMID:Ischaemic stroke, snoring and obstructive sleep apnoea. 1060 93

Obese patients are at an increased risk for developing many medical problems, including insulin resistance and type 2 diabetes mellitus, hypertension, dyslipidemia, cardiovascular disease, stroke, sleep apnea, gallbladder disease, hyperuricemia and gout, and osteoarthritis. Certain cancers are also associated with obesity, including colorectal and prostate cancer in men and endometrial, breast, and gallbladder cancer in women (1-6). Excess body weight is also associated with substantial increases in mortality from all causes, in particular, cardiovascular disease. More than 5% of the national health expenditure in the United States is directed at medical costs associated with obesity (7). In addition, certain psychologic problems, including binge-eating disorder and depression, are more common among obese persons than they are in the general population (8.9). Finally, obese individuals may suffer from social stigmatization and discrimination, and severely obese people may experience greater risk of impaired psychosocial and physical functioning, causing a negative impact on their quality of life (10).
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PMID:Obesity and its comorbid conditions. 1069 82

Insulin resistance appears to be a common feature and a possible contributing factor to several frequent health problems, including type 2 diabetes mellitus, polycystic ovary disease, dyslipidemia, hypertension, cardiovascular disease, sleep apnea, certain hormone-sensitive cancers, and obesity. Modifiable factors thought to contribute to insulin resistance include diet, exercise, smoking, and stress. Lifestyle intervention to address these factors appears to be a critical component of any therapeutic approach. The role of nutritional and botanical substances in the management of insulin resistance requires further elaboration; however, available information suggests some substances are capable of positively influencing insulin resistance. Minerals such as magnesium, calcium, potassium, zinc, chromium, and vanadium appear to have associations with insulin resistance or its management. Amino acids, including L-carnitine, taurine, and L-arginine, might also play a role in the reversal of insulin resistance. Other nutrients, including glutathione, coenzyme Q10, and lipoic acid, also appear to have therapeutic potential. Research on herbal medicines for the treatment of insulin resistance is limited; however, silymarin produced positive results in diabetic patients with alcoholic cirrhosis, and Inula racemosa potentiated insulin sensitivity in an animal model.
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PMID:Insulin resistance: lifestyle and nutritional interventions. 1076 68

Several epidemiological studies have suggested that sleep-disordered breathing is a risk factor for cardiovascular disease, particularly hypertension, stroke and IHD. The relative risk for IHD among obstructive SAS(OSAS) patients is 1.2 to 6.9 higher compared with the general population. The prevalence of SAS with an apnea-hypopnea index(AHI) of 10 and over was 35 to 40% in IHD, while 23.8% of SAS patients had IHD. These evidence suggests that IHD is an important prognostic factor in SAS patients. Characteristic pathophysiological conditions such as sleep apnea-induced hypoxemia and sympathetic activation may play an important role in the genesis of nocturnal angina pectoris. Most patients with OSAS are obese, and the complication of non-insulin dependent diabetes mellitus is quite a few. Insulin resistance is also attracting great attention as a cause of the cardiovascular complication of SAS.
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PMID:[Sleep apnea syndrome (SAS) and ischemic heart disease (IHD)]. 1094 39

The sleep apnoea/hypopnoea syndrome (SAHS) is characterized by repeated upper airway narrowing or collapse during sleep. The obstruction is caused by the soft palate and/or base of tongue collapsing against the pharyngeal walls because of decreased muscle tone. These episodes are accompanied by hypoxaemia, surges in blood pressure, brief arousal from sleep and pronounced snoring. Individuals with occult disease are at heightened risk of motorway accidents because of excessive sleepiness, sustained hypertension, myocardial infarction, and stroke. The signs and symptoms of SAHS may be recognisable in the dental practice. Common findings in the medical history include daytime sleepiness, snoring, hypertension, and type 2 diabetes mellitus. Common clinical findings include male gender, obesity, increased neck circumference, excessive fat deposition in the palate, tongue (macroglossia) and pharynx, a long soft palate, a small recessive mandible and maxilla, and calcified carotid artery atheromas on panoramic and lateral cephalometric radiographs. Dentists who recognise these signs and symptoms have an opportunity to diagnose patients with occult SAHS. After confirmation of the diagnosis by a physician, dentists can participate in the management of the disorder by fabricating mandibular advancement appliances that enlarge the retroglossal space by anterior displacement of the tongue and performing corrective upper airway surgery that prevents recurrent airway obstruction.
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PMID:Dentistry's role in the diagnosis and co-management of patients with sleep apnoea/hypopnoea syndrome. 1097 58

The incidence of obesity (especially childhood obesity) and its associated health-related problems have reached epidemic proportions in the United States. Recent investigations suggest that the causes of obesity involve a complex interplay of genetic, environmental, psychobehavioral, endocrine, metabolic, cultural, and socioeconomic factors. Several genes and their protein products, such as leptin, may be particularly important in appetite and metabolic control, although the genetics of human obesity appear to involve multiple genes and metabolic pathways that require further elucidation. Severe obesity is frequently associated with significant comorbid medical conditions, including coronary artery disease, hypertension, type II diabetes mellitus, gallstones, nonalcoholic steatohepatitis, pulmonary hypertension, and sleep apnea. Long-term reduction of significant excess weight in these patients may improve or resolve many of these obesity-related health problems, although convincing evidence of long-term benefit is lacking. Available treatments of obesity range from diet, exercise, behavioral modification, and pharmacotherapy to surgery, with varying risks and efficacy. Nonsurgical modalities, although less invasive, achieve only relatively short-term and limited weight loss in most patients. Currently, surgical therapy is the most effective modality in terms of extent and duration of weight reduction in selected patients with acceptable operative risks. The most widely performed surgical procedure, Roux-en-Y gastric bypass, achieves permanent (followed up for more than 14 years) and significant weight loss (more than 50% of excess body weight) in more than 90% of patients.
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PMID:Current status of medical and surgical therapy for obesity. 1117 43

The increase in obesity worldwide will have an important impact on the global incidence of cardiovascular disease, type 2 diabetes mellitus, cancer, osteoarthritis, work disability, and sleep apnea. Obesity has a more pronounced impact on morbidity than on mortality. Disability due to obesity-related cardiovascular diseases will increase particularly in industrialized countries, as patients survive cardiovascular diseases in these countries more often than in nonindustrialized countries. Disability due to obesity-related type 2 diabetes will increase particularly in industrializing countries, as insulin supply is usually insufficient in these countries. As a result, in these countries, an increase in disabling nephropathy, arteriosclerosis, neuropathy, and retinopathy is expected. Increases in the prevalence of obesity will potentially lead to an increase in the number of years that subjects suffer from obesity-related morbidity and disability. A 1% increase in the prevalence of obesity in such countries as India and China leads to 20 million additional cases of obesity. Prevention programs will stem the obesity epidemic more efficiently than weight-loss programs. However, only a few prevention programs have been developed or implemented, and the success rates reported to date have been low. Obesity prevention programs should be high on the scientific and political agenda in both industrialized and industrializing countries.
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PMID:The public health impact of obesity. 1127 26

Many genetic, environmental, behavioral, and cultural factors affect health. Diet is as vital as any of them for preventing disease and promoting well-being. We know that what we eat can lead to premature disability and mortality: to obesity, coronary heart disease, type 2 diabetes, degenerative arthritis, sleep apnea, and other illnesses. Now scientific evidence points to links between dietary patterns and illness. The study of these links is a new approach to understanding the role that diet plays in chronic disease. Initial studies include those on eating patterns and risk of colon cancer. More recently, researchers have investigated all-cause mortality and leading causes of chronic disease. Novel epidemiological approaches include factorial analysis to evaluate dietary patterns and cluster analysis to examine nutrient intake, gender, and weight status across food-pattern clusters. These methods work best within groups to identify major dietary patterns, but not necessarily ideal diets. They may also differ across population groups. The success of the Dietary Approaches to Stop Hypertension and Lyon Diet Heart studies supports the value of dietary pattern analysis. At the same time, the relative failure of single-nutrient studies underscores the need for new methodologies and directions in research.
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PMID:Treatment approaches: food first for weight management and health. 1170 45

Most primary care physicians do not treat obesity, citing lack of time, resources, insurance reimbursement, and knowledge of effective interventions as significant barriers. To address this need, a 10-minute intervention delivered by the primary care physician was coupled with individual dietary counseling sessions delivered by a registered dietitian via telephone with an automated calling system (House-Calls, Mobile, AL). Patients were seen for follow-up by their physician at weeks 4, 12, 24, 36 and 52. A total of 252 patients (202 women and 50 men) were referred by 18 primary care physicians to the program. The comorbid conditions reported for all patients at baseline included low back pain, 29% (n = 72); hypertension, 45% (n = 113); hypercholesterolemia, 41% (n = 104); type 2 diabetes, 10% (n = 26); and sleep apnea, 5% (n = 12). When offered a choice of meal plans based on foods or meal replacements, two-thirds of patients (n = 166) chose to use meal replacements (Ultra Slim-Fast; Slim-Fast Foods Co., West Palm Beach, FL) at least once daily. Baseline weights of subjects averaged 200 +/- 46 lb for women (n = 202) and 237 +/- 45 lb for men (n = 50). Patients completing 6 months in the program lost an average of 19.0 +/- 4.0 lb for women (n = 94) and 15.5 +/- 8.2 lb for men (n = 26). Physicians reported a high degree of satisfaction with the program, suggesting that a brief, effective physician-directed program with nutritionist support by telephone can be implemented in a busy primary care office.
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PMID:Implementation of a primary care physician network obesity management program. 1170 60

Severe obesity is associated with multiple comorbidities and is refractory to dietary management with or without behavioral or drug therapies. There are a number of surgical procedures for the treatment of morbid obesity, including purely gastric restrictive, a combination of malabsorption and gastric restriction or primary malabsorption. The purely gastric restrictive procedures, including vertical banded gastroplasty and laparoscopic adjustable silicone gastric banding, do not provide adequate weight loss. African-American patients do especially poorly after the banding procedure with the loss of only 11% of excess weight in one study. Gastric bypass (GBP) is associated with the loss of 66% of excess weight at 1 to 2 years after surgery, 60% at 5 years and 50% at 10 years. For unknown reasons, African-American patients lose significantly less weight than Caucasians after GBP. There is a risk of micronutrient deficiencies after GBP, including iron deficiency anemia in menstruating women, vitamin B12, and calcium deficiencies. Prophylactic supplementation of these nutrients is necessary. Recurrent vomiting after bariatric surgery may be associated with a severe polyneuropathy and must be aggressively treated with endoscopic dilatation before this complication is allowed to develop. The malabsorptive procedures include the partial biliopancreatic bypass (BPD) and BPD with duodenal switch (BPD/DS). The BPD appears to cause severe protein-calorie malnutrition in American patients; the BPD/DS may be associated with less malnutrition. Weight loss failure after GBP does not respond to tightening a dilated gastrojejunal stoma or reducing the size of the gastric pouch. These patients may require conversion to a malabsorptive distal GBP, similar to the BPD. However, because of the risk of severe protein-calorie malnutrition and calcium deficiency BPD should be reserved for patients with severe obesity comorbidity. The risk of death following bariatric surgery is between 1% and 2% in most series but is significantly higher in patients with respiratory insufficiency of obesity. In most patients, surgically induced weight loss will correct hypertension, type II diabetes mellitus, sleep apnea, obesity hypoventilation syndrome, gastroesophageal reflux, venous stasis disease, urinary incontinence, female sexual hormone dysfunction, pseudotumor cerebri, degenerative joint disease pains, as well as improved self-image and employability.
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PMID:Bariatric surgery for severe obesity. 1185 Dec 1


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