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

Self-reported snoring is common in pregnancy, particularly in females with pre-eclampsia. The prevalence of inspiratory flow limitation during sleep in preeclamptic females was objectively assessed and compared with normal pregnant and nonpregnant females. Fifteen females with pre-eclampsia were compared to 15 females from each of the three trimesters of pregnancy, as well as to 15 matched nonpregnant control females (total study population, 75 subjects). All subjects had overnight monitoring of respiration, oxygen saturation, and blood pressure (BP). No group had evidence of a clinically significant sleep apnoea syndrome, but patients with pre-eclampsia spent substantially more time (31+/-8.4% of sleep period time, mean+/-SD) with evidence of inspiratory flow limitation compared to 15.5+/-2.3% in third trimester subjects and <5% in the other three groups (p=0.001). In the majority of preeclamptics, the pattern of flow limitation was of prolonged episodes lasting several minutes without associated oxygen desaturation. As expected, systolic and diastolic BPs were significantly higher in the pre-eclamptic group (p<0.001), but all groups showed a significant fall (p< or =0.05) in BP during sleep. Inspiratory flow limitation is common during sleep in patients with pre-eclampsia, which may have implications for the pathophysiology and treatment of this disorder.
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PMID:Inspiratory flow limitation during sleep in pre-eclampsia: comparison with normal pregnant and nonpregnant women. 1171 73

Obesity is a worldwide growing epidemic. The negative influence of obesity is huge and considered to be one of the major contributors to health problems in the western world. There is a significant association between obesity and diabetes mellitus, ischemic heart disease, some cancers and syndromes of sleep apnea. Furthermore, obesity was described to have a negative influence on fertility, pregnancy, labor and pregnancy outcomes. It was also discovered that obesity was significantly associated with gestational hypertension, preeclampsia, gestational diabetes mellitus and complications in cesarean delivery and anesthesia. This review aims to present updates on the relationship between obesity and pregnancy and labor outcomes, emphasizing the significance of obesity as a risk factor for adverse pregnancy outcome.
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PMID:[Maternal obesity as a risk factor for complications in pregnancy, labor and pregnancy outcomes]. 1612 15

Obstructive sleep apnea during pregnancy, associated with arterial hypertension, pre-eclampsia and adverse outcome of the newborn, has been described. Usually it can successfully be treated with non-invasive ventilation. A 36-year-old, twin-pregnant woman at 28 + 6 weeks of gestation presented with the complaints of snoring and nocturnal oxygen desaturations. Polysomnography confirmed the diagnosis of severe obstructive sleep apnea (respiratory disturbance index [RDI] 104/h, minimal oxygen saturation in pulse oximetry [SpO2/min] 75%). First therapeutic approaches including oxygen supplementation, non-invasive ventilation with continuous positive airway pressure (CPAP) or bilevel positive airway pressure--spontaneous (BiPAP-S) remained without success. Only after ventilation with bilevel positive airway pressure in spontaneous/timed modus (BiPAP-ST) combined with additional oxygen supplementation a satisfactory treatment result could be achieved (RDI 32/h, SpO2/min 85%). Because of progressive pre-eclampsia despite therapy at 31 + 0 weeks of gestation cesarean section was performed and 2 healthy children were delivered. After surgery non-invasive ventilation had to be continued for another six weeks before the condition improved. In contrast to the documented benefits of non-invasive positive pressure ventilation in pregnant women the literature, in our case even with sufficient therapy of sleep apnea progressive pre-eclampsia and premature delivery could not be prevented. Possible explanations include the short treatment duration and existence of twin pregnancy.
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PMID:[Twin pregnancy and severe obstructive sleep apnea]. 1748 32

We report on a sleepy woman, suffering from morbid obesity, with a diagnosis of severe sleep apnea syndrome made at the age of 30 year, treated with nocturnal ventilatory support (nasal CPAP). The patient had an history of preeclampsia during a first pregnancy. In the following years, this patient remained very compliant with nasal CPAP, was no longer sleepy and was three times pregnant, without any complication.
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PMID:[Three pregnancies on nasal CPAP: a case report]. 1770 76

The treacherous and deceptive nature of pheochromocytoma makes it crucial to detect and treat it promptly; otherwise it will almost certainly be fatal from cardiovascular complications or metastases. Hypertension occurring in patients with pheochromocytomas is sustained in about 50% and paroxysmal in the remainder; however, many patients remain normotensive. Hypertension attacks may be precipitated by physical activity, postural changes, anxiety, certain foods or wine, some drugs, operative procedures, etc. Cardinal manifestations are paroxysmal hypertension, headache, palpitations +/- tachycardia, inappropriate sweating; anxiety, tremulousness, pallor (rarely flushing), chest and abdominal pains; nausea and vomiting often occur. Hypercatecholaminemia manifestations are more common and pronounced when paroxysmal hypertension occurs, but persons with familial pheochromocytoma may be asymptomatic. Protean manifestations of pheochromocytoma may simulate many conditions, some of which may have elevated plasma and urine catecholamines and their metabolites. Baro-reflex failure, postural tachycardia syndrome, sleep apnea, carcinoid, renal failure, and pseudopheochromocytoma may be diagnostic challenges. The history, physical examination, biochemical testing (after eliminating interfering drugs, when possible) for plasma and urinary metanephrines can usually establish or exclude presence of pheochromocytomas. Occasionally a clonidine suppression test is needed to differentiate neurogenic from pheochromocytic hypertension. Manifestations suggesting hypercatecholaminemia without hypertension are highly atypical of pheochromocytoma. Pheochromocytoma may present as panic attacks, pre-eclampsia, cardiomyopathy, infection with fever and leucocytosis, diabetes, migraine, shock, Cushing's syndrome, multiple organ failure with lactic acidosis, neurological manifestations, transitory electrocardiogram abnormalities, constipation, intestinal obstruction, visual impairment, convulsions, etc. The key to diagnosis is always to think of pheochromocytoma in the differential diagnosis of hypertension.
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PMID:The protean manifestations of pheochromocytoma. 1924 99

Pregnancy is associated with many physiologic and hormonal changes along with changes in sleep architecture, placing pregnant women at risk for the development of sleep-disordered breathing or worsening of preexisting sleep apnea. Snoring, the most common symptom of sleep-disordered breathing, is markedly increased during pregnancy. The exact prevalence of obstructive sleep apnea in pregnant women is unknown. Because the apneic episodes are commonly associated with oxyhemoglobin desaturations, the combination of obstructive sleep apnea and pregnancy can be potentially harmful to the fetus given the low oxygen reserves during pregnancy. Obstructive sleep apnea has been associated with an increased risk of hypertension among the general population, and this raises the possibility of its association with gestational hypertension and preeclampsia. In this clinical review, we discuss the physiologic changes of pregnancy that predispose pregnant women to the development of obstructive sleep apnea and the effects of sleep-disordered breathing on pregnancy outcomes. We also review the recommendations regarding evaluation for sleep apnea and treatment options during pregnancy and postpartum.
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PMID:Sleep-disordered breathing during pregnancy. 1926 39

Snoring, upper airway resistance syndrome, sleep apnea syndrome and obesity hypoventilation syndrome are all defined as sleep-disordered breathing. Many changes occur in the respiratory system and sleep physiology during pregnancy due to physical and hormonal causes. Functional residual capacity, total sleep time, rapid eye movement (REM) sleep and stage 3-4 non-REM sleep are reduced during the third trimester of pregnancy. Snoring is more prevalent in pregnant women than nonpregnant women. Snoring during pregnancy may be associated with pregnancy induced hypertension, preeclampsia, intrauterine growth retardation and low APGAR scores in infant. The prevalence of sleep apnea syndrome during pregnancy is unknown. All pregnant women, especially obese and preeclamptic were asked to possibility of sleep disordered breathing. In this review we summarized, first normal physiological changes of respiratory system and sleep during pregnancy, second maternal and fetal outcome of sleep disordered breathing and finally treatment of sleep disordered breathing in pregnancy.
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PMID:Sleep breathing disorders in pregnancy. 1971 19

The field of sleep medicine has grown exponentially worldwide. Sleep apnea is linked to the obesity epidemic, which, in some regions of the United States, affects more than one-third of the population. Sleep alterations increase the risk of cardiovascular and cerebrovascular pathology through a diversity of direct and indirect mechanisms. Recent investigations have found a clinical correlation between sleep disorders and diabetes. Obese pregnant women are at high risk for development of sleep apnea and preeclampsia. New studies have uncovered that restless legs syndrome and periodic limb movements may increase the risk of hypertension and vascular disease. Sudden death in sleep may be preventable if conditions that lead to sudden death are investigated. New neuroimaging techniques during sleep in patients with insomnia have uncovered metabolic overactivity in areas of the brain related to maintenance of wakefulness. Sleep neuroimaging promises to have research and clinical diagnostic applications.
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PMID:A review of frontiers in clinical sleep medicine. 2041 Aug 57

This review considers the 250+ papers concerning the association of the angiotensin converting enzyme (ACE) gene insertion/deletion polymorphism (rs1799752) and various disease conditions published in 2009. The deletion allele occurs in approximately 55% of the population and is associated with increased activity of the ACE enzyme. It might be predicted that the D allele, therefore, might be associated with pathologies involving increased activity of the renin-angiotensin system. The D allele was seen to be associated with an increased risk of hypertension, pre-eclampsia, heart failure, cerebral infarct, diabetic nephropathy, encephalopathy, asthma, severe hypoglycaemia in diabetes, gastric cancer (in Caucasians) and poor prognosis following kidney transplant. On the positive side, the D allele appears to offer protection against schizophrenia and chronic periodontitis and confers greater up-per-body strength in old age. The I allele, meanwhile, offers improved endurance/athletic performance and aerobic capacity as determined by lung function tests, although it does increase the risk of oral squamous cell carcinoma and obstructive sleep apnoea in hypertensives.
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PMID:Implications of the angiotensin converting enzyme gene insertion/deletion polymorphism in health and disease: a snapshot review. 2153 87

Sleep disordered breathing and its symptoms have been associated with a multitude of fetal and maternal complications including gestational hypertensive disorders, gestational diabetes and possibly pre-term labour and other markers of alterations in fetal wellbeing. The disease remains underdiagnosed in the general population but likely also in pregnancy, mostly because providers do not appropriately screen for the disorder. Sleep disordered breathing may manifest differently in women, since women report more fatigue and less snoring than men do. This paper discusses typical presentations of sleep disordered breathing but also reports some less obvious presentations to help providers recognise those manifestations and screen for the disorder when warranted. Our case series describes patients with diagnoses such as chronic hypertension, pre-eclampsia, pulmonary hypertension, nocturnal asthma and panic attacks, who were diagnosed with sleep disordered breathing and offered treatment with CPAP during pregnancy.
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PMID:Clinical manifestations of obstructive sleep apnoea in pregnancy: more than snoring and witnessed apnoeas. 2266 13


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