Obstructive sleep apnoea and anaesthesia

Safety of Non-Operating Room Anesthesia With Propofol Sedation in Three Pediatric Patients With Central Sleep Apnea

Children with central sleep apnea may require sedation for procedures, including brain imaging as part of the evaluation of apnea. However, the safety of deep sedation without a protected airway is not known in this patient population. In this case series, we present 3 children with central sleep apnea who were sedated with propofol for brain imaging in a non-operating room setting. All 3 did well with no complications; those with a home oxygen requirement were on oxygen during the procedure but none experienced apnea, desaturation, or respiratory distress. While obstructive sleep apnea is a known contraindication to deep sedation with propofol, it may be safe in pediatric patients with central sleep apnea. Deep sedation may be a good option for these patients, thereby avoiding the need for general anesthesia and placement of an advanced airway.

A Complex Presentation of Acute Postoperative Negative-Pressure Pulmonary Edema: A Case Report and Review of Literature

Negative-pressure pulmonary edema (NPPE) is an uncommon diagnosis that requires a high clinical suspicion to recognize and manage and has high morbidity and mortality. It usually results secondary to markedly negative intrapleural pressure due to the forceful inspiration against the obstructed airway from upper airway infection, tumor, or laryngospasm. We present a case of a 27-year-old female with morbid obesity who underwent sleeve gastrectomy and developed NPPE upon emergence from anesthesia. The focus of supportive care should be on addressing the obstruction in the upper airway through either endotracheal intubation or cricothyroidotomy. Additionally, it is important to initiate lung-protective positive-pressure ventilation and promote diuresis, unless the patient is in a state of shock. The resolution of pulmonary edema is typically swift, partially due to the preservation of alveolar fluid clearance mechanisms. In the literature review, we delve into the clinical presentation, pathophysiology, and management of NPPE or post-obstructive pulmonary edema.

A novel algorithm to predict oxygen desaturation in sedated patients with obstructive sleep apnea utilizing polysomnography: A STROBE-compliant article

This retrospective study aimed at identifying the predictors of oxygen desaturation (OD) (i.e., SpO2 < 95%) in patients with obstructive sleep apnea (OSA) requiring deep sedation and developing an algorithm to predict OD.We studied 66 OSA patients undergoing propofol-induced deep sedation for drug-induced sleep endoscopy (DISE). The patients were divided into prediction (n = 35) and validation (n = 31) groups. Patient characteristics and polysomnographic parameters were analyzed with receiver operating characteristic curve and Chi-squared test to identify significant predictors of OD for developing an algorithm in the prediction group. The predictive accuracy, sensitivity, positive predictive value, and negative predictive value of the algorithm were determined in the validation group.Six polysomnographic predictors of OD were identified, including Apnea-Hypopnea Index of total sleep time (AHI-TST), AHI at the stage of rapid eye movement (AHI-REM), percentage of time with oxygen saturation <90% (mO2 < 90%), average SpO2, lowest SpO2, and desaturation index. Stepwise multiple logistic regression analysis demonstrated that low average SpO2 (<95.05%) and high AHI-REM (>16.5 events/h) were independent predictors of OD. The algorithm thus developed showed that patients with an average SpO2 < 95.05% and those with an average SpO2 ≥ 95.05% together with an AHI-REM > 16.5 events/h would be at risk of OD under sedation. The predictive accuracy, sensitivity, positive predictive value, and negative predictive value were 84%, 100%, 83%, 100%, respectively.For patients with OSA, average SpO2 and AHI-REM may enable clinicians to predict the occurrence of oxygen desaturation under deep sedation. Future large-scale studies are needed to validate the findings.

Don't Ignore My Snore: Reducing Perioperative Complications of Obstructive Sleep Apnea

PURPOSE

Obstructive sleep apnea (OSA), a condition associated with decreased muscle tone in the airway, has been linked to postoperative complications. The purpose of the initiative was to develop and implement a guideline for patients identified as high-risk for OSA to reduce complications related to OSA.

DESIGN

A multidisciplinary team developed the guideline utilizing the Iowa Model of Evidence-Based Practice to Promote Quality Care.

METHODS

PubMed literature search from 2006-2013 and critique of over 40 articles were completed. A nursing care plan was created from the guideline to facilitate communication of care for this population.

FINDINGS

Postoperative cardiopulmonary complications related to OSA decreased from 27% to 14.6% after guideline implementation.

CONCLUSIONS

Guideline and nursing care plan specific to OSA in the perioperative setting improved patient outcomes.

Caring for the patient with obstructive sleep apnea: implications for health care providers in postanesthesia care

Obstructive sleep apnea (OSA) is a sleep disorder affecting 18 million Americans. The prevalence of OSA is increasing due to an epidemic rise in obesity, which is a major contributing factor. The primary treatment for OSA is continuous positive airway pressure, designed to maintain a patent airway for unobstructed breathing. OSA patients may experience postoperative hypoventilation due to residual anesthetic, analgesic requirements, and other comorbidities. Postoperative health care providers must be prepared to assess for hypoventilation and intervene using evidence-based interventions to improve outcomes. It is incumbent that the PACU nurse be aware of and implement evidence-based clinical guidelines for patients with OSA. Therefore, the purpose of this manuscript is to (1) describe the physiology, comorbidities, diagnosis, and treatment of OSA; (2) identify the effects of anesthesia in persons with OSA; (3) discuss clinical guidelines; and (4) describe implications for care in an effort to improve health outcomes in persons with OSA during the perianesthesia period.