In general, ventricular dysthymia, i.e., premature ventricular dysthymia, can be examined by gastroenteroscopy if there are no symptoms such as chest tightness and shortness of breath; if accompanied by symptoms such as chest tightness and shortness of breath, dyspnea, dizziness and so on, gastroenteroscopy is not recommended at this time due to the irritating nature of gastroenteroscopy and the increase in the burden on the heart. Premature ventricular dysthymia is a type of arrhythmia in which a normal heart beat is followed by a premature ventricular beat, and the frequent occurrence of such a pattern constitutes a premature ventricular dysthymia. It is a type of frequent premature ventricular beats. Prolonged premature ventricular dysthymia can lead to dilation of the heart muscle cells and enlargement of the heart, known as arrhythmogenic cardiomyopathy. Patients with premature ventricular dysthymia may experience symptoms such as panic, shortness of breath, dyspnea, and chest pain, or they may have no clinical symptoms and only be detected on an electrocardiogram. Gastroenteroscopy is not recommended for patients with premature ventricular dysthymia with symptoms such as chest tightness, shortness of breath, dyspnea, dizziness, etc. Gastroenteroscopy is an invasive test, which is irritating and can increase the burden on the heart. It is recommended to consult a physician if gastroenteroscopy can be performed in patients with ventricular tachycardia.