case_images: PMC11790626_01
case_images: PMC11790626_02
case_images: The anatomical diagram of the superior vena cava. (a) The normal superior vena cava anatomical diagram. (b) The patient's superior vena cava anatomical variation based on B-ultrasound. LIV, left innominate vein; RIV, Right innominate vein; SVC, superior vena cava; RA, right atrium; LSVC, left superior vena cava.
case_images: fsurg-12-1428776-g001.jpg
case_images: PMC11790626_02_fsurg-12-1428776-g001.jpg
case_images: F1
case_images: The diagram of the patient's superior vena cava anatomical variation based on B-ultrasound (Figure 1).
case_images: Postoperative CT showed the position of the catheter. (a) The catheter was located under the right subclavicle. (b) The catheter was inserted into the innominate vein. (c) The catheter was entered into the left superior vena cava. (d) The tip of the catheter was located at the left lateral level of the lower border of the 6th thoracic vertebra, within the middle and lower 1/3 of the left persistent superior vena cava.
case_images: fsurg-12-1428776-g002.jpg
case_images: PMC11790626_02_fsurg-12-1428776-g002.jpg
case_images: F2
case_images: The catheter reached the left superior vena cava through the right subclavian vein and right brachioceanian vein, and the tip of the TIVAD port was located at the left lateral level of the lower edge of the T6 vertebra (Figure 2).
case_images: Postoperative chest x-ray showed the catheter tip is located 1.82 cm below tracheal carina and considered the ideal location.
case_images: fsurg-12-1428776-g003.jpg
case_images: PMC11790626_02_fsurg-12-1428776-g003.jpg
case_images: F3
case_images: Postoperative chest x-ray showed that the catheter tip was 1.82 cm from the horizontal line of the tracheal carinal (Figure 3), suggested the tip of the catheter was in the appropriate position.