OBJECTIVES This study was designed to assess the prevalence of provoked exercise desaturation (PED) in patients with patent foramen ovale (PFO) referred for cardiovascular evaluation and to evaluate the impact of PFO closure. BACKGROUND Platypnea orthodeoxia syndrome is a rare, mechanistically obscure consequence of PFO that results in oxygen desaturation during postural changes. In our clini...

bacteria! plaque is an essential factor of gingival and periodontal disease.the ability of chemical piaque control agent to prevent plaque formation is well documented compare with other mechanical plaque removal methods. the purpose of this study was to compare clinical effects of shore choice mouth rinse (h2 o2, 0.1%) with a placebo.following a period of 4 weeks, 20 subjects were allocated to...

BACKGROUND Nocturnal desaturation may contribute to long-term pulmonary vascular stress in interstitial lung disease (ILD). We study the prevalence, severity and prognostic utility of nocturnal desaturation across ILD. METHODS ILD patients with overnight oximetry (June 2006-August 2008) were reviewed (n = 134). Significant nocturnal desaturation was considered as > 10% of sleep with SpO2 < 90...

The objective of our study was to assess the application of nasal continuous positive airway pressure (nCPAP) with supplemental oxygen for correction of upper airway obstructive episodes and hypoxaemia during sleep in stable patients with sleep apnoea-hypopnoea syndrome (SAHS) and severe chronic obstructive pulmonary disease (COPD). Ten male patients with symptomatic SAHS and severe COPD (force...

BACKGROUND Desaturation occurs for many reasons under anaesthesia, some rare and obscure, and many potentially life threatening. The rapidity with which the cause is determined and appropriate management is instituted varies considerably between anaesthetists. OBJECTIVES To examine the role of a previously described "core" algorithm COVER ABCD-A SWIFT CHECK, supplemented by a specific sub-alg...

Toraldo and colleagues (December 2005)1 are to be congratulated on their endeavor to identify daytime variables that are predictive of nocturnal desaturation in COPD patients, a field in which many attempts have failed. However, we think that some points are worth addressing. First, despite the plethora of data presented by Toraldo et al,1 it does not greatly contribute to the evidence base of ...

Editor—The Onyx Liquid Embolic System (Onyx; Micro Therapeutics, Inc., Irvine, CA, USA) is a new non-adhesive liquid embolic agent and is currently being used at our institution in the embolization of cerebral vascular lesions. The disadvantage of Onyx is that it is dissolved in dimethyl sulphoxide (DMSO). Systemic toxicity, such as pulmonary oedema, bronchospasm, bradyarrhythmia, and even card...

OBJECTIVE To identify the predictive factors of oxygen desaturation during the six-minute walk test (6MWT) in patients with cystic fibrosis (CF). METHODS Prospective cross-sectional study involving clinically stable patients with CF aged > or = 10 years. The patients were submitted to nutritional evaluations, oral glucose tolerance tests, pulmonary function tests, chest X-rays and 6MWTs. RE...

The incidence of oxygen desaturation (less than 91%) was measured by pulse oximetry during recovery from outpatient dental anaesthesia in 120 ASA grade I and II children. Alternate cases were given supplementary oxygen 5 litre min-1 by mask. Eighteen of 60 children (30%) given air and 14 of 60 (23%) given oxygen exhibited desaturation (P greater than 0.05). Desaturation was more likely to occur...

BACKGROUND Routine monitoring of postoperative patients with pulse oximetry-based surveillance monitoring has been shown to reduce adverse events. However, there is some concern that pulse oximetry is limited in its ability to detect deterioration quickly enough to allow for intervention in patients receiving supplemental oxygen. To address such concerns, this study expands on the current limit...