ObjectiveTo investigate the etiology, clinical features, treatment, and prognosis of Partial status epilepticus (PSE). MethodsSeventeen PSE patients were hospitalized in the Department of Neurology at the First Hospital of Jilin University from April 2013 to June 2015. Clinical data were retrospectively analyzed. ResultsA total of 17 patients, 8 male and 9 female, 18~91years old, at mean age (48.90±21.17) years were included. About 12 cases (70.59%) had acute symptomatic status epilepticus, the etiologies including central nervous system inflammation (5 cases), cortical infarction (3 cases), metabolic disorder (1 case), hypoxic-ischemic encephalopathy (1 case), space-occupying lesions(1 case) and degeneration (1 case); four cases (23.53%) were diagnosed with epilepsy, one case (5.88%) had no definite pathogenesis. The seizure types included complex partial status epilepticus (8 cases, 47.06%), complex part of the secondary comprehensive status epilepticus (3 cases, 17.65%), supplementary motor area (SMA) status epilepticus (4 cases, 23.53%), epilepsia partialis continua (EPC) (1case, 5.88%)and complex partial status epilepticus & aura continua (1case, 5.88%). Nine cases (52.94%) were effective after one hour treament, eight cases (47.06%) were negative. 17 cases are followed-up and 4 cases lost, the average follow-up time is (10.89±8.64) months. 8 cases are completely seizure free, and 3 cases have experience less seizures or the symptom is relived; the other 2 cases die from Creutzfeldt-Jacob desease(case No.10) and Respiratory failure(case No.12). ConclusionsThe inpatients of partial status epilepticus are mostly "situation related". Patients with clinical suspect should be administrated with long term video-Electroencephalogram(EEG) monitoring timely. Early diagnosis, treatment and the aggressive treatment can help to improve the prognosis. Patients of encephalitis usually progress into refractory status epilepticus, the anesthetic drugs should be used as soon as possible.