Clinical Outcomes of Seven Medullary Infarction Subtypes

Linhu Zhao's multicenter cohort study analyzes 352 patients with acute medullary infarction, classified into seven anatomical subtypes. It investigates clinical characteristics, early neurological deterioration, and 90-day functional outcomes measured by the modified Rankin Scale. The study identifies independent predictors of favorable outcomes, including admission NIHSS score and age.

Use Cases

• Predict 90-day functional outcome (mRS ≤ 2) using admission NIHSS score, age, and anatomical subtype classification.
• Analyze the association between specific anatomical subtypes, like dorsomedial, and rates of early neurological deterioration (END).
• Identify prognostic factors for poor outcomes by examining variables such as dysphagia and large-artery atherosclerosis across subtypes.
• Compare clinical manifestations, such as limb motor dysfunction and consciousness disturbance, among the seven anatomical subtypes.

Strengths

• Multicenter design with data from 352 patients, providing a substantial clinical cohort.
• Clear anatomical classification into seven distinct subtypes based on MRI-DWI findings.
• Includes key clinical endpoints: early neurological deterioration (END) and 90-day functional outcomes (mRS).

Limitations

• Retrospective study design may introduce selection bias and limit causal inference.
• Data is contained in a single 639.8 KB PDF, requiring manual extraction for computational analysis.
• Patient cohort is from three specific hospitals in China, which may limit generalizability to other populations.

Provenance

Source

First Affiliated Hospital of Kunming Medical University, West China Hospital of Sichuan University, Peking University First Hospital Taiyuan Hospital.

Collection Method

Multicenter retrospective cohort study based on clinical records and MRI-DWI imaging.

Time Range

January 2019 to October 2024.

Freshness

Data covers patients from January 2019 to October 2024, with the record last updated in March 2026.

Geography

Three hospital centers in China.