Current Epidemiologic Status of Stroke

OBJECTIVE: To evaluate the epidemiological data of stroke patients admitted to Dong-Eui Hospital. METHOD: We performed a prospective study on 1370 cases of stroke consecutively admitted to the hospital from June, 2001 to May, 2002 during hospitalization by medical records and questionaire. RESULT: The highest incidence of the stroke was noted in the group of 60 years of age. The proportion of stroke subtypes were infarct (75.2%), intracranial hemorrhage (21.2%), and subarachnoid hemorrhage (3.6%). Sixteen percents of patients arrived over 24 hours after onset of stroke. The seasonal incidence was in order of frequency of spring, winter, autumn, and summer. The highest occurrence of the stroke was noted in May. The onset time of stroke was highest between 7: 00 am and 8: 00 am. Risk factors in stroke by the order of frequency were hypertension (61.1%), abnormal EKG at admission (45.5%), hyperlipidemia (38.3%), smoking (36.6%), previous stroke history (24.7%), and diabetes mellitus (24.7%). The common complications during hospitalization were pneumonia (7.6%), gastritis (5.6%), depression (4.8%), and hepatitis (4.6%). CONCLUSION: Although the results of this study obtained from one local hospital in Korea, they are valuable as basic epidemiologic data of stroke for the rospective community- based study in the future.

No Response Rates of Sensory Nerve Conduction Studies and Late Responses in Lower Limbs of Heathy Adults

OBJECTIVE: The purpose of this study was to determine no response rates of sensory nerve conduction studies and late responses in the lower limbs of healthy adults. METHOD: The subjects were 50 healthy adults (mean age, 45.6 years) without the clinical signs and symptoms of peripheral neuropathy. All subjects underwent electrodiagnostic evaluation of the following sensory nerves in lower limbs: superficial peroneal, sural, proximal sural, lateral dorsal cutaneous branch of sural nerve (LDSN), and medial plantar. Examined late responses included: tibial F-wave, peroneal F-wave, and H-reflex recorded from the soleus muscle. RESULT: No response rates of sensory nerve conduction studies such as superficial peroneal, sural, proximal sural, LDSN, and medial plantar nerves were 2%, 0%, 0%, 24%, and 18%, respectively. No response rates of late responses such as tibial F-wave, peroneal F-wave, and H-reflex were 0%, 2%, and 8%, respectively. And no response rates were significantly correlated with age (p<0.05). CONCLUSION: No response rate of sensory and late responses of lower limbs are relevant to age increments, the results should be considered for an early diagnosis of peripheral neuropathy in the lower limbs of old population.

Clinical Factors Associated with Functional Status at Discharge in Stroke Patients

OBJECTIVE: To investigate the clinical characteristics, risk factors and complications of stroke patients and their effect on the patient's functional outcomes at discharge. METHOD: We performed a prospective study during hospitalization on 1, 250 consecutive acute stroke patients discharged from Dong-Eui Hospital from June 2001 to May 2002. Glasgow outcome scale, status of upper extremity involved and status of ambulation were used to evaluate functional status. RESULTS: The variables of clinical characteristics identified as significant in functional status at discharge were the presence of occupation, interval between onset and visit to hospital arrival, type of first treatment after stroke, type of caregiver, type of stroke and location of infarction and intracranial hemorrhage. Positive functional outcomes were significantly related to a younger age, male, small amount of hemorrhage and short length of hospital stay. Among risk factors of stroke, abnormal ECG findings at admission and presence of previous stroke were negative prognostic factors. The complications influencing stroke outcome negatively were pneumonia, depression, urinary tract infection, myocardial infarction and recurrence of stroke in hospitalization. CONCLUSION: The results of this study should be considered during acute management and rehabilitation of stroke patients and are valuable as basic data of functional outcome after stroke.