Publications by authors named "D O Kwack"

Article Synopsis
  • Pedicle ossification is a rare complication that can occur after using a fibular free flap (FFF) for mandibular reconstruction, potentially simulating tumor recurrence and leading to diagnostic challenges.
  • A case study of a 38-year-old male with squamous cell carcinoma highlighted how postoperative complications led to the need for FFF reconstruction, and over 4 years, CT scans showed ossification in the flap's vascular pedicle, yet the patient remained asymptomatic.
  • Regular imaging and clinical assessments are key to distinguishing ossification from tumor recurrence, with surgery usually only considered if symptoms arise.
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Objective: Seizures can be triggered by a variety of endogenous or exogenous factors. We hypothesized that alterations in the gut microbiome may be a seizure precipitant and analyzed the composition and characteristics of the gut microbiome in epilepsy patients who experienced an abrupt seizure exacerbation without a clear seizure precipitant.

Methods: We prospectively enrolled 25 adult patients with epilepsy and collected fecal samples on the admission and after seizure recovery for next-generation sequencing analysis.

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Background And Purpose: Although aura in epilepsy is usually considered as a phenomenon in patients with focal seizures, headache can occur as an aura or solitary epileptic symptom in patients with generalized seizures.

Methods: We performed a 14-year retrospective study of patients with generalized seizures and analyzed the proportion and characteristics of patients with auras including headache.

Results: Among the 102 patients diagnosed with generalized seizures, aura was reported in 45 patients and headache was the most common aura in 26 patients.

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Background: Hyperammonemia can occur after acute overdose or chronic use of valproic acid (VPA). Although VPA-related hyperammonemic encephalopathy (VHE) is a rare complication of VPA therapy, early recognition of VHE and identifying its risk factors are important because VHE can lead to loss of consciousness and increased seizure frequency.

Purpose: The purpose of our study is to evaluate the risk factors of hyperammonemia in epilepsy patients during treatment with VPA therapy.

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