Sick sinus syndrome laboratory findings

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sahar Memar Montazerin, M.D.[2]

Overview

There is no laboratory findings associated with the diagnosis of sick sinus syndrome. However, electrolyte abnormalities may be one of the causes. Possible metabolic disturbances associated with sick sinus syndrome include hyperkalemia, hypokalemia, hypoglycemia, hypocalcemia, and hypoxia.

Laboratory Findings

There is no laboratory findings associated with the diagnosis of sick sinus syndrome. However, electrolyte abnormalities may be one of the causes. Possible electrolyte disturbances associated with sick sinus syndrome include:^[1]^[2]^[3]^[4]
- Hyperkalemia
- Hypokalemia
Hypoglycemia may also be one of the causes of sick sinus syndrome.
Other metabolic derangement associated with sick sinus may syndrome include:
- Hypocalcemia
- Hypoxia

References

↑ Sahasakul Y, Chaithiraphan S, Dhiantravan Y (August 1987). “Hyperkalemia-induced sick sinus syndrome”. J Med Assoc Thai. 70 (8): 489–92. PMID 3681174.
↑ Ettinger, Philip O.; Regan, Timothy J.; Oldewurtel, Henry A. (1974). “Hyperkalemia, cardiac conduction, and the electrocardiogram: A review”. American Heart Journal. 88 (3): 360–371. doi:10.1016/0002-8703(74)90473-6. ISSN 0002-8703.
↑ Bolognesi, Roberto; Tsialtas, Dimitri; Bolognesi, Maria Giulia; Giumelli, Claudio (2011). “Marked sinus bradycardia and QT prolongation in a diabetic patient with severe hypoglycemia”. Journal of Diabetes and its Complications. 25 (5): 349–351. doi:10.1016/j.jdiacomp.2011.01.001. ISSN 1056-8727.
↑ Kusumoto, Fred M.; Schoenfeld, Mark H.; Barrett, Coletta; Edgerton, James R.; Ellenbogen, Kenneth A.; Gold, Michael R.; Goldschlager, Nora F.; Hamilton, Robert M.; Joglar, José A.; Kim, Robert J.; Lee, Richard; Marine, Joseph E.; McLeod, Christopher J.; Oken, Keith R.; Patton, Kristen K.; Pellegrini, Cara N.; Selzman, Kimberly A.; Thompson, Annemarie; Varosy, Paul D. (2019). “2018 ACC/AHA/HRS Guideline on the Evaluation and Management of Patients With Bradycardia and Cardiac Conduction Delay: Executive Summary: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines, and the Heart Rhythm Society”. Circulation. 140 (8). doi:10.1161/CIR.0000000000000627. ISSN 0009-7322.

Overview