case_images: PMC9620720_01
case_images: The dramatic transition of a thoracic CT scan (soft-tissue window) and pulmonary computed tomography angiography. (A) Preoperative tests: CT revealed clear lung fields bilaterally. (B) Three days after operation: CT scan showing large bilateral pleural effusions without pericardial effusion. (C) Nine days after the operation: there is a resolution of the left pleural effusion and a marked decrease in the right pleural effusion. (D) Nineteen days after operation: there is no pleural effusion on CT images. (E,F) Pulmonary computed tomography angiography ruled out pulmonary embolism.
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case_images: PMC9620720_01_fcvm-09-996481-g0001.jpg
case_images: F1
case_images: A chest computed tomography demonstrated no significant abnormalities, as shown in Figure 1A. As shown in Figure 1B, massive bilateral pleural effusion alone was observed in a chest computed tomography. Pulmonary computed tomography angiography ruled out pulmonary embolism (Figure 1). The pathological changes were resolved and the chest CT reverted to normal after 3 days of treatment, and the patient was able to be discharged out of the hospital; the chest CT is shown in Figure 1C.
case_images: Three-dimensional reconstruction of pulmonary vein and ablation circle (red-colored) using the CARTO3  system. (A) Three-dimensional reconstruction of the pulmonary vein in left lateral view. (B) Three-dimensional reconstruction of the pulmonary vein in posteroanterior view. (C) Three-dimensional reconstruction of the pulmonary vein in right lateral view. (D) Ablation circle in left lateral view. (E) Ablation circle in posteroanterior view. (F) Ablation circle in right lateral view.
case_images: fcvm-09-996481-g0002.jpg
case_images: PMC9620720_01_fcvm-09-996481-g0002.jpg
case_images: F2
case_images: To avoid excessive drops in impedance, we adjusted the contact force by 5-10 g for each application (Figure 2).
case_images: Patient's electrocardiogram (ECG). (A) The preprocedure ECG reveals atrial fibrillation. (B) The postoperative ECG of the patient when she felt palpitations and chest discomfort.
case_images: fcvm-09-996481-g0003.jpg
case_images: PMC9620720_01_fcvm-09-996481-g0003.jpg
case_images: F3
case_images: She had a history of hypertension, and chronic AF and had symptomatic AF confirmed by the 12-lead ECG for 1 year (Figure 3A). On the following day, there was a progressive worsening of symptoms associated with chest distress and dyspnea (Figure 3B).