Heart Attack 101: What Happens.
I.Introduction It doesn’t always start with a cinematic collapse. It often starts with a quiet, heavy tightness in your chest—like an invisible weight holding you down while…
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![alt="8K hyper-realistic photograph inside a modern US electrophysiology clinic. A compassionate female cardiologist with PVC HEART branding on her lab coat points to a high-resolution monitor displaying an ECG tracing with an isolated wide QRS complex and compensatory pause. An attentive patient watches while holding a matching printed rhythm reference sheet. Soft ambient clinic lighting, medical precision, [MEDICALLY REVIEWED] trust seal visible."](https://pvcheart.com/wp-content/uploads/2026/07/watermarked_img_8726221352871066765-768x419.png)
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![alt="8K hyper-realistic photograph inside a modern US medical clinic. A reassuring female cardiologist (PVC HEART branding, Dr. Sarah Jenkins) is seated at a desk, softly pointing to a wall monitor that explicitly displays the title 'BLOOD WORK FOR HEART PALPITATIONS: KEY LAB TESTS' and structured data for electrolytes, thyroid, CBC, and glucose. An attentive American patient listens, holding the matching printed checklist. Natural golden hour lighting, sharp detail, [MEDICALLY REVIEWED] seal visible."](https://pvcheart.com/wp-content/uploads/2026/07/Gemini_Generated_Image_catzaucatzaucatz-768x419.png)
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Premature Ventricular Contractions Diagnosis:
Premature Ventricular Contractions (PVCs) are extra heartbeats. They start in your heart’s lower chambers (ventricles). These extra beats disrupt your regular heart rhythm. You might feel a…