Improvement in Sleep-Disordered Breathing Indices Downloaded From a Positive Airway Pressure Machine Following Conversion of Atrial Fibrillation to Sinus Rhythm.

ABSTRACT: Sleep-disordered breathing (SDB) is a contributor to atrial fibrillation (AF) and treatment of obstructive sleep apnea can reduce the recurrence of AF following catheter ablation. However, the effect of AF therapies on measures of SDB severity is less robustly described. We present the case of a middle-aged man with SDB and persistent AF who exhibited improvement in SDB metrics, as characterized by data downloaded from his auto-titrating continuous positive airway pressure (AutoCPAP) machine, very shortly following procedures that restored sinus rhythm. Between procedures, when his rhythm reverted to AF, the downloaded parameters suggested more SDB events. After catheter ablation, the patient maintained sinus rhythm and the improvement in SDB metrics was sustained as well. This case provides support in favor of a bidirectional relationship between SDB and AF and suggests that data available from PAP machines may be useful in serial assessment of SDB status relative to heart rhythm.

Traumatic brain injury and pain.

The co-occurrence of traumatic brain injury (TBI) and pain is quite frequent and presents a number of challenges to the medical practitioner. The distinct nature and extent of these challenges calls for considering the co-existence of TBI and pain a unique medical entity. Clearly, from a research standpoint, the area is in its infancy. The clinician is often left with adapting standard techniques effective for evaluating and treating pain in patients without TBI. Such adaptations require a readiness to recognize how pain affects the presence and course of TBI-related symptoms and, in turn, how TBI symptoms affect the presence and course of pain. Given the myriad factors that can affect outcome, effective evaluation and treatment of this co-occurring problem need to rely on a biopsychosocial model, which encourages consideration of a broad perspective of possible causes and care approaches as well as use of multiple disciplines.