Chien Hung Chang

Dr. Chien Hung Chang

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Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 August 2020 in Neuropsychiatric Disease and Treatment
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Journal Article
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CCChan-Lin Chu
Chan-Lin Chu
YCYueh-Peng Chen
Yueh-Peng Chen
CCCarl P.C. Chen
Carl P.C. Chen
CCChih-Kuang Chen
Chih-Kuang Chen
HCHsiang-Ning Chang
Hsiang-Ning Chang
YPYu-Cheng Pei
Yu-Cheng Pei
Background: Tailored rehabilitation programs for stroke patients cannot be made without knowledge of their recovery potential. The aim of this study is to characterize the functional recovery patterns of ischemic stroke (IS) and intracerebral hemorrhage (ICH) patients under post-acute care stroke rehabilitation. Methods: This retrospective study analyzed the data of patients enrolled in the Post-Acute Care-Cerebrovascular Disease (PAC-CVD) rehabilitation program, which provides an individualized 1- to 3-hour intensive physical, occupational, and speech and language therapy for post-acute stroke patients in Taoyuan Chang Gung Memorial hospital in Taiwan. Our primary endpoint measure was Barthel Index (BI), and secondary endpoint measures included other 12 functional measures. Results: A total of 489 patients were included for analysis. Patients with stroke history had less BI improvement than those who suffered their first-ever stroke. In first-ever stroke patients who had completed 6 to 12 weeks of PAC-CVD program, subcortical ICH patients had greater BI, quality of life, sensation, and balance improvements, and had greater late-phase recovery than their IS counterparts. In IS patients, those with age > 75 had less BI improvement; those with National Institute of Health Stroke Scale (NIHSS) score 1– 5 had greater Motor Activity Log quality of use (MAL-quality) improvement than those with NIHSS score > 5; those with Mini-Mental State Examination (MMSE) score ≥ 24 had greater BI and instrumental activities of daily living (IADL) improvement. Using the general linear model, previous stroke (ß: − 6.148, p=0.01) and subcortical ICH (ß: 5.04, p=0.03) were factors associated with BI improvement. Conclusion: Subcortical ICH patients have greater functional improvement and greater late-phase recovery than their IS counterparts following PAC rehabilitation. More studies are needed to validate our findings and unravel the underlying mechanisms of stroke recovery to optimize the treatment strategy following a stroke.

25 January 2014 in Journal of Digital Imaging
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YSYao Shieh
Yao Shieh
Chien Hung ChangChien Hung Chang
Chien Hung Chang
MSMengkai Shieh
Mengkai Shieh
TLTsong-Hai Lee
Tsong-Hai Lee
YCYeu Jhy Chang
Yeu Jhy Chang
SGScott Goodwin
Scott Goodwin

16 October 2022 in Journal of Clinical Medicine
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YCYu-Chieh Chen
Yu-Chieh Chen
CCChun-Wei Chang
Chun-Wei Chang
HWHsiu-Chuan Wu
Hsiu-Chuan Wu
CCChiung-Mei Chen
Chiung-Mei Chen
Chien Hung ChangChien Hung Chang
Chien Hung Chang
KCKuo-Hsuan Chang
Kuo-Hsuan Chang
Non-infectious cerebral venous thrombosis (CVT) is an uncommon type of cerebrovascular disease that usually affects young patients. It occurs frequently in female patients, probably due to the association of sex-specific risk factors for coagulopathies. Currently, the prognostic factors of CVT remain unclear. We retrospectively reviewed the clinical characteristics among 260 CVT patients, including 147 females and 113 males. A favorable clinical outcome was defined by the scores of the modified Rankin Scale (mRS) ≤ 2 at hospital discharge, while a poor clinical outcome was defined by an mRS score of 3 to 6. A headache (28.5%) was the most frequent presentation. The most commonly affected sinus was the transverse-sigmoid sinus (59.6%). Most of the cases (78.5%) were treated with anticoagulants. One hundred and fifty-seven patients (60.4%) were discharged with favorable clinical outcomes. Consciousness disturbance (odds ratio: 5.01, p < 0.001) was associated with a poor clinical outcome. Patients with poor clinical outcomes demonstrated higher D-dimer levels on admission (4137.76 ± 3317.07 vs. 2476.74 ± 2330.87 ng/mL FEU, p = 0.029) and longer hospitalization days (31.81 ± 26.29 vs. 13.96 ± 8.82 days, p < 0.001) compared with favorable clinical outcomes. These findings provide important information of clinical characteristics and prognosis for CVT. Aggressive monitoring and treatment should be considered in CVT patients with poor prognostic factors.

Verified
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CCChih-Hung Chen
Chih-Hung Chen
BHBing-Shen Huang
Bing-Shen Huang
CLChien Yu Lin
Chien Yu Lin
CYChih-Hua Yeh
Chih-Hua Yeh
TLTsong-Hai Lee
Tsong-Hai Lee
YCYeu-Jhy Chang
Yeu-Jhy Chang
Background and purpose: to investigate the frequency of cervical–cranial vascular complications soon after radiation therapy (RT) and identify differences among patients with various types of head and neck cancer (HNC). Methods: We enrolled 496 patients with HNC who had received their final RT dose in our hospital. These patients underwent carotid duplex ultrasound (CDU) for monitoring significant carotid artery stenosis (CAS). Brain imaging were reviewed to detect vertebral, intracranial artery stenosis, or preexisted CAS before RT. Primary outcome was significant CAS at the internal or common carotid artery within first 5 years after RT. We categorized the patients into nasopharyngeal carcinoma (NPC) and non-NPC groups and compared the cumulative occurrence of significant CAS between the groups using Kaplan–Meier and Cox-regression analyses. Results: Compared to the NPC group, the non-NPC group had a higher frequency of significant CAS (12.7% vs. 2.0%) and were more commonly associated with significant CAS after adjusting the covariates (Adjusted hazard ratio: 0.17, 95% confident interval: 0.05–0.57) during the follow-up period. All the non-NPC subtypes (oral cancer/oropharyngeal, hypopharyngeal, and laryngeal cancers) were associated with higher risks of significant CAS than the NPC group (p < 0.001 respectively). Conclusion: Significant CAS was more frequently noted within 5 years of RT among the patients with non-NPC HNC than among the patients with NPC. Scheduled carotid artery surveillance and vascular risk monitoring should be commenced earlier for patients with non-NPC HNC. By contrast, vascular surveillance could be deferred to 5 years after RT completion in NPC patients.

5 February 2020 in Cerebrovascular Diseases
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CLChuan-Min Lin
Chuan-Min Lin
HWHsiu-Chuan Wu
Hsiu-Chuan Wu
YWYi-Ming Wu
Yi-Ming Wu
CLChi-Hung Liu
Chi-Hung Liu
KCKuo-Hsuan Chang
Kuo-Hsuan Chang
Chien Hung ChangChien Hung Chang
Chien Hung Chang
Introduction: The multiphase computed tomography angiography (mCTA) is superior to the noncontrast computed tomography (NCCT) in selecting patients that would benefit from mechanical thrombectomy following an acute ischemic stroke (AIS). It remains unclear whether the longer examination time of mCTA worsens outcomes of intravenous recombinant tissue plasminogen activator (IV r-tPA) or increases the risk of hemorrhagic transformation (HT) compared to NCCT in Asian stroke patients. Methods: Between January 2011 and December 2017, 199 AIS patients receiving IV r-tPA with initial National Institute of Health Stroke Scale (NIHSS) scores between 6 and 25 were enrolled in a single medical center. Onset-to-needle time (ONT), door-to-needle time (DNT), and creatinine levels before and after thrombolysis were recorded. We evaluated NIHSS scores 2, 24 h after treatment, and at discharge, the modified Rankin Scale (mRS) at discharge, and mortality rate. The presence of HT was reviewed within 7 days after thrombolysis. Results: DNT, perithrombolysis creatinine levels, NIHSS, and mRS scores at the emergency room were similar between the NCCT and mCTA groups. ONT was shorter in the mCTA group. AIS patients got more significant neurologic improvement (NIHSS decrease ≥4) after thrombolysis and physically independent (mRS ≤2) at discharge in the mCTA group. Mortality rates, symptomatic, and total HT rates were similar between the NCCT and mCTA groups. Conclusion: Comparing to NCCT, mCTA-based IV r-tPA would not delay DNT nor worsen the outcome. Furthermore, mCTA provides more information for early identification of candidates for mechanical thrombectomy in Asian AIS patients.

1 January 2018 in Current Neurovascular Research
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Journal Article
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CLChun-Hsien Lin
Chun-Hsien Lin
CLChi-Hung Liu
Chi-Hung Liu
AWAlvin Yi-Chou Wang
Alvin Yi-Chou Wang
YWYi-Ming Wu
Yi-Ming Wu
CCChing-Chang Chen
Ching-Chang Chen
Chien Hung ChangChien Hung Chang
Chien Hung Chang
Background: We compared the clinical outcomes of low and standard dose recombinant tissue Plasminogen Activator (rtPA) treatment in Acute Ischemic Stroke (AIS) patients receiving Endovascular Mechanical Thrombectomy (EVT). Methods: Between April 01, 2015 and September 30, 2017, all AIS patients admitted to the Linkou and Chiayi Chang Gung Memorial Hospital were retrospectively reviewed. Patients with large vessel occlusions, who underwent bridging therapy with rtPA and EVT, were further enrolled. The enrolled patients were categorized into low (0.6-0.7 mg/kg; LD) or standard dose (0.9 mg/kg; SD) group based on the dose of rtPA they received. Baseline characteristics, reperfusion status, and clinical outcomes were compared between the two groups. Results: Forty-two patients were enrolled in the final analyses, including 13 in the LD and 29 in the SD group. In all groups analyzed, the frequencies of moderate to severe and severe stroke at discharge were significantly decreased compared to those at stroke onset (p < 0.01). Compared to the SD group, patients of the LD group had a similar rate of mortality (LD vs. SD; 0% vs. 3.4%, p = 1.00), and comparable frequencies of functional independence at 3 months after stroke onset (LD vs. SD; 33.3% vs. 44.8%, p = 0.50). The rates of symptomatic intracerebral hemorrhage were also similar between the two groups (LD vs. SD; 0% vs. 6.9%, p = 1.00). Conclusions: Compared to standard dose treatment, low dose rtPA may have similar clinical efficacy and safety outcomes in AIS patients receiving bridging therapy.