Published online Sep 26, 2022. doi: 10.12998/wjcc.v10.i27.9879
Peer-review started: May 12, 2022
First decision: July 14, 2022
Revised: July 27, 2022
Accepted: August 21, 2022
Article in press: August 21, 2022
Published online: September 26, 2022
Breast cancer poses a great threat to females worldwide. There are various therapies available to cure this common disease, such as surgery, chemotherapy, radiotherapy, and immunotherapy. Implantable venous access ports (IVAP, referred to as PORT) have been widely used for breast cancer chemotherapy. Venous malformations are possible conditions encountered during PORT im
We incidentally found that two patients had PLSVC while a PORT was implanted via the internal jugular vein. Due to chemotherapy for breast cancer, PORT was successfully implanted under the guidance of ultrasound into these 2 patients. Positive chest X-ray examination after the operation showed that the catheter ran beside the left mediastinum and the end was located in the seventh thoracic vertebra. The patients had no catheter-related complications and successfully completed the course of chemotherapy. Ultrasonography found that the ratio of PORT outer diameter to PLSVC inner diameter was less than 0.45, which was in line with the recommendations of relevant literature and operating guidelines. The purpose of this article is to introduce two rare cases and review the relevant literature.
Correct assessment of PLSVC status and ultrasound-guided PORT placement generally does not affect breast cancer patients chemotherapy.
Core Tip: We accidentally discovered two cases of implantable venous access ports (IVAP, referred to as PORT) placement through the persistent left superior vena cava (PLSVC). Both patients had no obvious clinical symptoms, and the operation was smooth and the postoperative recovery was good. According to relevant literature and operation guideline, the PORT should only be placed if the ratio of the PORT outer diameter to the PLSVC inner diameter is less than 0.45, otherwise catheter-related complications may occur. At the same time, it is recommended that all patients undergo ultrasonography before venous port placement to determine whether the coronary sinus is dilated.