Objective To investigate the related factors of early angina after acute myocardial infarction,and to provide basis for the disease prevention and control.Methods 1 32 cases with acute myocardial infarction were selected.The clinical data were collected.The occurrence rate of early angina pectoris after acute myocardial infarc-tion,and clinical characteristics were analyzed.The related factors of acute myocardial infarction angina were explored.Results The incidence rate of early angina pectoris after acute myocardial infarction was 29.55%.Within 7 days after acute myocardial infarction occurred angina,the highest rate for 64.1 0%,followed by 7 -1 4 days in the occurrence of angina pectoris,28.21 %.34 cases were the original location of myocardial infarction ischemia and 5 cases were the far part of ischemia,21 cases showed ST segment elevation,1 8 cases showed ST lack blood group downward.Anterior wall,inferior wall infarction composite,successful thrombolytic therapy recanalization,myocardial infarction before episodes of angina pectoris,history of hypertension,heart function classification more than or equal to grade III in patients with acute myocardial infarction occurred after the proportion of early angina pectoris were signifi-cantly higher (all P <0.05).Conclusion Anterior wall,inferior wall infarction composite,successful thrombolytic therapy recanalization,myocardial infarction before episodes of angina pectoris,history of hypertension and cardiac functional grading more than or equal to grade III are related to early angina pectoris after acute myocardial infarction. We should actively take measures aimed at early prevention and treatment of early angina pectoris after acute myocar-dial infarction to avoid illness aggravating,improve the patients'prognosis.

Hemodynamic monitoring is an essential part in the care of children with congenital heart disease during perioperative period to guide clinical management.Currently,there are several methods available for hemodynamic monitoring.The invasive methods include the Fick method,thermodilution method,using the Swan-Ganz catheter and the pulse contour method.The noninvasive methods include partial carbon dioxide resorption,impedance method.In this paper,the principle,advantages and disadvantages of these monitoring methods in children undergoing cardiopulmonary bypass surgery were reviewed.

Objective To explore the feasibility, safety, and efficacy of transesophageal endoscopic surgery for mediastinal tumors. Methods A retrospective analysis was conducted on the clinical data of 17 patients who underwent transesophageal endoscopic resection for benign mediastinal tumors at the Endoscopy Center of Zhongshan Hospital, Fudan University, between January 1, 2016 and December 31, 2024. Epidemiological characteristics, surgical parameters, adverse events, and follow-up outcomes were analyzed. Results Among the 17 patients, there were 9 males and 8 females, with an average age of (42.4±14.5) years and an average tumor size of (2.6±1.6) cm. Pathological types included esophageal duplication cysts (6 cases, 35.3%), bronchogenic cysts (5 cases, 29.4%), gastroenteric cysts (3 cases, 17.6%), schwannomas (2 cases, 11.8%), and lymphangioma (1 case, 5.9%). Fourteen patients (82.4%) underwent submucosal tunneling endoscopic resection (STER), 3 patients (17.6%) underwent natural orifice transluminal endoscopic mediastinal surgery. All surgeries were successfully completed without conversion to open surgery. En bloc resection was achieved in 11 patients (64.7%), with an average operative time of (60.9±32.6) min. No intraoperative bleeding or mucosal injury occurred, and 4 patients (23.5%) experienced minor complications (pneumothorax, fever, recurrent laryngeal nerve injury), all of which resolved with conservative treatment. The average postoperative hospital stay was (3.2±1.5) days, and no recurrence was observed during the follow-up period. Conclusions Transesophageal endoscopic resection of benign mediastinal tumors is a safe, effective, and minimally invasive treatment method. Further validation of its efficacy and safety through large-scale prospective studies is warranted.