Publications by authors named "Long-Yi Chen"

Background: Although the anatomic difficulties of laparoscopic surgery for rectal cancer have been resolved by hybrid transanal total mesorectal excision (h-taTME), a completely incisionless surgical procedure has not yet been developed. This study was performed to explore the efficacy of pure taTME (p-taTME) without laparoscopic assistance as a completely non-invasive surgical procedure for rectal cancer.

Methods: We retrospectively evaluated all patients with rectal cancer who underwent p-taTME between December 2015 and April 2018.

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Aim: To report the four most common spinal parasites for providing insight into definitive therapy.

Material And Methods: Twelve patients with spinal parasites were diagnosed between 2009 and 2016. A definite diagnosis was established in the form of histopathology (n=9) and response to drug therapy (n=3).

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Objective: To investigate the necessity of drilling the occipital condyle in a tailored far lateral approach for resection of ventrolateral foramen magnum meningiomas (FMMs).

Methods: Clinical data of 15 patients with ventrolateral FMMs who underwent surgery during a 6-year period were reviewed retrospectively.

Results: A retrocondylar approach was performed in 8 cases (6 above the vertebral artery [VA] and 2 below the VA) in which the dural attachment was surgically accessible with no restriction of the initial part of the V4 segment of the VA, and a partial transcondylar approach was performed in 7 cases on both sides of the VA where the dural attachment associated with the VA auxiliary space was reached by superolateral displacement of the VA by drilling of the condyle.

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Objective: To investigate the implications of dural tail sign (DTS) in the tailored far lateral approach for resection of ventral foramen magnum meningiomas (FMMs).

Methods: Clinical data for 16 patients treated surgically for ventral FMMs over 5 years were reviewed retrospectively.

Results: The DTS was positive in 11 cases (68.

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Objective: To investigate the administration of far lateral craniocervical approach in the jugular foramen (JF) tumors.

Methods: A retrospective analysis was performed in 14 cases of JF tumors (9 neurilemmomas, 3 meningiomas, 1 glomus jugulare tumor, and 1 adenoid cystic carcinoma) surgically treated between January 2009 and January 2012, with focus on the surgical approach. Six patients (6/14) showed hydrocephalus.

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Self-assembled vertical nanostructures take advantage of high interface-to-volume ratio and can be used to design new functionalities by the choice of a proper combination of constituents. However, most of the studies to date have emphasized the functional controllability of the nanostructures using external electric or magnetic fields. In this study, to introduce light (or photons) as an external control parameter in a self-assembled nanostructure system, we have successfully synthesized oxide nanostructures with CoFe(2)O(4) nanopillars embedded in a SrRuO(3) matrix.

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Objective: To observe the expression of aquaporin-4 (AQP-4) mRNA and study the relationship between AQP-4, brain edema, pathological changes and ultrastructure of peri-hematoma tissue in intracerebral hemorrhage (ICH) patients.

Methods: Intracranial operation was performed via nonfunctional area with a funnel-like approach on 30 ICH patients. The brain tissue which must be removed 1 cm away the hematoma was removed within 12 hours for observation as normal brain tissue and taken as the control group (7 patients), and which of the brain tissue within 1 cm around hematoma was taken as the study specimens.

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Article Synopsis
  • The study aimed to explore how the inflammatory response affects cell death (apoptosis) in brain tissue surrounding hemorrhages in patients with intracerebral hemorrhage (ICH).
  • Researchers collected tissue samples adjacent to the hematoma from 30 ICH patients, dividing them into groups based on the time since hemorrhage, and conducted various analyses to evaluate tissue damage and apoptosis.
  • Results indicated that tissue damage and inflammation increased with time after hemorrhage, peaking at 12-24 hours, followed by a decrease; apoptosis markers showed similar trends, while Bcl-x protein levels did not significantly change across groups.
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