Spontaneous Remission Of Left Bundle Branch Block Immediately After Denitrogenation With Inhalation Of 100% Oxygen Prior To Anesthetic Induction
Ting, P. C., Lin, T. S., Yang, M. W., & Ho, A. C. (2010). spontaneous remission of left bundle branch block immediately after denitrogenation with inhalation of 100% oxygen prior to anesthetic induction. Acta anaesthesiologica Taiwanica : official journal of the Taiwan Society of Anesthesiologists, 48(3), 140–144. https://doi.org/10.1016/S1875-4597(10)60046-X
View Original Source →Abstract
Complete left bundle branch blocks have focused our attention, primarily because they are a sign predictive of mortality and a predictor of coexisting cardiovascular disease. Left bundle branch block (LBBB) is usually permanent but may occur transiently or intermittently. Spontaneous remission of LBBB rarely occurs during anesthesia. We present two patients in whom chronic LBBB reverted to normal sinus rhythm shortly following denitrogenation with inhalation of 100% oxygen during induction of anesthesia.
Case Details
Disease Location
Heart
Personal Characteristics
56 years old male. Heavy smoker (1 pack of cigarrretes for 35 years)
Clinical Characteristics
Patient undergoing for a right tympanoplasty for chronic otitis media. No signs of cardiovascular disease. Complete left bundle branch block diagnosed (clbb)
Remission Characteristics
While patient (1) was denitrogenized with oxygen, the clbb suddenly converighted to normal sinus rhythm.
Treatment & Mechanisms
Proposed Remission Mechanisms
Oxygen supplement had quenched the increased myocardial oxygen demand state which the chronic lbbb preconditioned
Clinical Treatment
Aspirin 100mg, isosorbide monthsonitrate 60mg and rosuvastatin 10mg per day
Non-Clinical Treatment
Oxygen
Additional Notes
Remission occurs only during 100% oxygen administration