Most Hispanic patients present inpatient complications during DNIS. The OCSP classification evaluates the location and extent of the ischemic stroke by arterial irrigation territories in such a way that provides early information about the patient's evolution and prognosis.

A retrospective, analytical study was carried out in two second-level care Hospitals. The OCSP classification was used to categorize patients according to the affected circulation. A χ² test was carried out to establish the difference between the neurological complications (NC) and Non-Neurological complications (NNC) incidence rates among the OCSP classification.

In a cohort of 320 Hispanic patients with NIS, 64% were men with a mean age of 69 ± 13 years. The average incidence of NC in the study population was 48.1%. According to the OCSP Classification, patients with Lacunar Syndrome (LACS) exhibited the highest incidence of NC at 61.9%, followed by patients with total anterior circulation (TACS) at 55.2%, partial anterior circulation (PACS) at 55.1%, and Posterior Circulation (POCS) at 42.9%. The average incidence of NNC was 55.6%. TACS had the highest incidence at 61.2%, followed by POCS at 59.8%, PACS at 55.1%, and LACS at 41.3%. LACS exhibited the lowest rate of mixed complications (41.3%), while the other groups showed similar higher rates which exceeded (≈>70%).

We can leverage the OCSP Classification to determine the affected circulation in stroke cases, enabling the anticipation and prevention of NC and NNC and their associated sequelae among Hispanic patients.