10Outlook
Sinus arrhythmia is not a major health problem. Nevertheless, some cases might indicate the presence of heart conditions. Older people with serious symptoms might need a pacemaker. In children or young adults, the condition tends to improve over time without treatments. This is because their hearts are still developing and growing.
When your children have a sinus arrhythmia, the doctor might need to monitor but do not provide any treatment unless symptoms become too serious or keep occurring in adolescence. Nevertheless, cases in the elderly are more abnormal and might need further testing. If heart conditions are the possible causes, then prompt treatments are needed to avoid further complications. [10]















