# Right Middle Cerebral Artery Occlusion Following Ovarian Hyperstimulation Syndrome: A Case Study

## TL;DR

A case study shows a rare stroke complication following ovarian hyperstimulation syndrome after embryo transplant.

## Contribution

This case highlights a rare but serious neurological complication linked to OHSS following reproductive treatment.

## Key findings

- Ischemic stroke occurred due to right middle cerebral artery occlusion after embryo transplant.
- OHSS diagnosis was supported by clear fluid from paracentesis and abdominal free fluid on CT.
- The patient received urgent endovascular treatment and maintained a progressing pregnancy.

## Abstract

Ovarian hyperstimulation syndrome (OHSS) is one of the most serious complications occurring from the growing field of artificial reproductive technology. The expanding literature points to a link between OHSS and thromboembolism events. We present a case of ischemic stroke secondary to a right middle cerebral artery occlusion in a female after a fresh embryo transplant. A CT of the abdomen demonstrated significant free fluid in the abdomen, in which hemoperitoneum from an ectopic pregnancy could not be excluded. A paracentesis was completed and demonstrated clear fluid, thus supporting a presumed diagnosis of OHSS. The patient was able to get urgent endovascular clot retrieval and continues to have a progressive pregnancy at the time of publication.