Does anxiety usually precede? Having a sudden cardiac arrest?

Sometimes. Patients who are periarrest - about to arrest - sometimes become anxious / agitated. Sometimes they develop an impending sense of doom. This is all due to worsening perfusion (the delivery of oxygen and nutrients). Their blood pressure might be low, the oxygen in their blood might be low, their blood might turn acidic. The term some people use for this chain of events is 'circling the drain'.
Not if it's... ...Truly sudden. If the arrest is due to a heart attack, then yes, there will be anxiety and probably pain as well.

Related Questions

I am always having the intense fear and anxiety about carcinophobia. Can this anxiety lead to a sudden cardiac arrest?

Unlikely. It is very unlikely that ONLY anxiety would lead to a heart attack. Anxiety can increase blood pressure, heart rate and breathing but in over 15 years of practice I have never met or heard of someone who died from a panic attack. If anxiety is interfering in daily functioning consider professional help. One strategy: identify what you can control and focus on an action plan & Practice relaxing. Read more...

Had multiple ecgs and event recorder would it have picked up any abnormality that can lead to sudden cardiac arrest I suffer severe aniexty?

Holter monitors. If your Holter study is normal and your EKGs were done when you were feeling bad and are all normal, then take a deep breath and relax. You might want to followup with a cardiologist who is a specialist in electro physiology to explain your studies and give you an opinion, but at this point you are good. All the best. Read more...
Absolutely yes. There's always an outside chance they missed something but it's small. Prolonged QT would have been seen & there would have been electrical evidence of hypertrophic cardiomyopathy. Other possibilities would have been picked up along the way (see other answer). Anxiety prompts epinephrine burst & throws you into scary sustained tachycardia only feeding the panic. Vicious cycle but no flatlining. Read more...

Would a clear ecg no family history 25 f suffer aniexty rule out sudden cardiac arrest?

Get regular check up. Medical checks done once yearly and adopting a healthy life style will keep you healthy. This means, eating healthy(plant based diet, reduce fats in the diet and maintain healthy weight) and exercise regularly(a daily walk is the best preventive medicine that you can take/do to avoid heart disease. ECG/EKG is a reasonable screen but tells us very little about the condition of your heart. Read more...

Had clear ecgs around 40 in life time last one today 25 f no family history except svt risk for sudden cardiac arrest? Suffer aniexty which im under treatment for kp worrying about sca

Anxiety. I understand your distress. Feel good about functioning of your heart as your ECG is normal. Believe in Healing Powers of your body. Treatment of Anxiety will be beneficial with: Seeing a Psychiatrist for Therapy for stress in your life, resolving emotional turmoil, learning coping skills and Medication Breathing and Music Relaxation, Visual Imagery, and Meditation. Cardiologist for follow up. Read more...