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In The Moment Massage Therapy Worked out with Canadian Health&Care Mall News - Part 2

Canadian Health&Care Mall about Sleep-Related Hypoventilation/Hypoxemic Syndromes: Sleep-Related Hypoventilation/Hypoxemia Due to Pulmonary Parenchymal or Vascular Pathology

Any respiratory system disorder that produces hypoxemia may potentially worsen during sleep. Compensatory hyperventilation may not be sustainable as a result of the state-dependent and postural changes in control of breathing and respiratory mechanics previously discussed, and any increase in PaC02 with sleep onset, even if still within the normal range, must result in a corresponding fall in oxyhemoglobin saturation. Diseases known to cause nocturnal hypoxemia and/or hypoventilation include cystic fibrosis (CF), interstitial pneumonitides, hypersensitivity pneumonitis, pulmonary hypertension (primary, or due to other causes such as recurrent pulmonary emboli), and hemoglobinopathies such as sickle-cell anemia. Of all of these disorders, CF and sickle-cell anemia have been studied most extensively with respect to gas exchange during sleep.

Sleep-Related Hypoventilation/Hypoxemic Syndromes: Sleep-Related Hypoventilation/Hypoxemia Due to Lower Airways Obstruction


The phenomenon of nocturnal hypoxemia complicating COPD has been recognized for at least 50 years. It has also long been recognized that, in comparison to their nonhypoxemic brethren, hypoxemic COPD patients have greater degrees of pulmonary hypertension and cor pulmonale, require more frequent hospitalizations, and sustain higher mortality rates. Not surprisingly, sleep-related hypoxemia in the COPD patient is most frequently associated with awake oxyhemoglobin desaturation and diurnal hypercapnia, both of which may be quite modest in degree; and individuals who are already significantly hypoxemic while awake are more likely to exhibit profound desaturation during sleep. In one study, all patients with diurnal oxyhemoglobin saturations 95% were hypoxemic at night; another study found a high correlation between diurnal PaC02 > 50 mm Hg and nocturnal hypoxemia.

Sleep-Related Hypoventilation/Hypoxemic Syndromes: Sleep-Related Nonobstructive Alveolar Hypoventilation, Idiopathic

Patients with a variety of neurologic conditions, such as Arnold-Chiari malformation, brainstem tumors, space occupying lesions, vascular malformations, CNS infection, stroke, or neurosurgical procedures, may demonstrate central hypoventilation. However, a small number of patients demonstrate hypoventilation even after all of these conditions have been excluded. The condition of decreased alveolar ventilation resulting in sleep-related hypoxemia in patients with normal mechanical properties of the lung and chest wall (no apparent primary lung disease, skeletal malformations, or neuromuscular disorder) is, by definition, idiopathic. This entity is uncommon and not well characterized. It seems probable that many of these patients have subtle or incipient manifestations of known causes of hypoventilation.

Canadian Health&Care Mall about Sleep-Related Hypoventilation/Hypoxemic Syndromes: Mechanisms of Sleep-Induced Hypoventilation and Hypoxemia

The availability of new technology, applied in original ways, has often been responsible for rapid advances in a variety of medical disciplines. This been particularly apparent in sleep medicine, in which the introduction of equipment capable of continuously monitoring oxyhemoglobin saturation and PaC02 has permitted detailed study of gas exchange during sleep in both health and disease. Indeed, the linkage of technologies for continuous measurement of gas exchange with the technology of EEG essentially created the contemporary field of sleep medicine. This review will set forth the mechanisms thought to be responsible for sleep-induced hypoventilation and hypoxemia, and then discuss recent developments related to sleep-induced hypoventilation and hypoxemic syndromes reflecting a portion of the recently published second edition of The International Classification of Sleep Disorders: Diagnostic and Coding Manual [...]

Deliberations of A Multidimensional Grading System (BODE Index) as Predictor of Hospitalization for COPD

The main finding of this study is that the BODE staging system, which includes in addition to FEVj other physiologic and clinical variables, helps to better predict hospitalization in patients with COPD. COPD is a complex multidimensional disease, and classification schemes that incorporate more parameters than the degree of are likely to predict outcomes more accurately. FEV1 is known to correlate poorly with symptoms, quality of life, exacerbation frequency, and exercise in-tolerance. Hence, newer approaches to disease assessment are required and may even supercede the current FEV1-based system of classification of disease severity. The multistage scoring system used in this study incorporates variables that can be easily evaluated in any office setting, and the BODE index has potential widespread applicability, just like the FEV1. Important to the acceptance for [...]

Main Results about A Multidimensional Grading System (BODE Index) as Predictor of Hospitalization for COPD

One hundred twenty-seven patients were followed up. The baseline characteristics of these patients are shown in Table 1. The mean age ± SD was 70.9 ± 8.2 years, and mean FEV1 was 43.7% of predicted. The number of patients in stages I to IV of COPD severity as defined by GOLD and the median BODE scores of the patients in each category are shown in Table 2. The vast majority of patients had moderate-to-very severe COPD (stages II to IV). The median BODE scores were progressively higher from stage I to stage IV. Table 3 shows the classification of patients according to BODE index score and individual variable scores. Patients in the cohort generally fared worse in airflow obstruction score than dyspnea and exercise capacity scores. Ten [...]

Investigation about A Multidimensional Grading System (BODE Index) as Predictor of Hospitalization for COPD

Patient Recruitment

Between October 2002 and April 2004, patients with a wide range of severity of COPD, regardless of whether they had previous COPD hospital admissions or not, were recruited from a single institution and enrolled in the Health Service Development Program (HSDP) for COPD funded by the Ministry of Health, Singapore. This pilot service project provided several interventions—optimal medication, patient education, home care, and telephone support—and is aimed at reducing hospitalization for COPD. The main outcome measure monitored in this project was the frequency of hospital admissions for COPD. Patients were recruited from the outpatient clinic. A diagnosis of COPD was established by a pulmonologist based on medical history, current symptoms, and available pulmonary function tests following Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines. An exacerbation was defined [...]

Canadian Health&Care Mall: A Multidimensional Grading System (BODE Index) as Predictor of Hospitalization for COPD

COPD is a slowly progressive disorder characterized by airflow obstruction that is not fully reversible. Although the progression of COPD is usually gradual, the disease is often associated with exacerbations of respiratory symptoms. Such exacerbations of symptoms requiring medical intervention are important clinical events in COPD, and they place a heavy burden on health-care resources. In many countries, exacerbations of COPD are a leading cause of hospital admissions among men, and expenditures for hospitalizations represent the bulk of all COPD-related medical-care costs reduced due to Canadian Health&Care Mall.

Trends in Private Insurance: Will Current Trends Address or Exacerbate Asthma Disparities? The Answer Is Given by Canadian Health&Care Mall

Reducing Asthma Disparities Among Individuals With Private Insurance

The majority of current trends in private insurance, Medicaid/SCHIP, and the safety net are likely to further exacerbate existing health disparities in asthma rather than help to reduce these disparities (Table 3). As shown in Figures 4 and 5, while losses in ESI coverage among all children who are < 400% of the FPL were offset by gains in Medicaid coverage, losses in ESI coverage for all racial/ethnic groups (except for Hispanics) were not offset by attendant increases in public coverage. This is an important concern, given the relationship between health insurance and access to care.

When low-wage workers do access coverage through their employers, the current trend toward shifting a greater portion of costs onto employees raises questions about the adequacy of coverage [...]

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