Publications by authors named "Ji Hyung Yu"
Objectives: To investigate the association of prostate size with aggressiveness of prostate cancer in Korean men who received radical retropubic prostatectomy (RRP) for clinically localized prostate cancer.
Methods: We evaluated the association of RRP specimen weight and prostate volume measured by transrectal ultrasound (TRUS) with pathologic tumor grade, extraprostatic extension of disease, surgical margin status, and seminal vesicle invasion by reviewing data of 346 consecutive patients who underwent RRP for clinically localized prostate cancer at our institution without receiving preoperative radiation or hormonal treatment.
Results: A strong correlation was observed between RRP specimen weight and TRUS-measured prostate volume (Spearman r = 0.
Objectives: To investigate the impact of variations in bony pelvic dimensions observed from preoperative magnetic resonance imaging on operative time, intraoperative blood loss, and surgical margin status on performing open radical retropubic prostatectomy.
Methods: A prospective study was undertaken in which preoperative magnetic resonance imaging was performed in 190 patients who were diagnosed with clinically localized prostate cancer before radical retropubic prostatectomy. Using the magnetic resonance image findings, various bony pelvic dimensions were measured.
Objectives: To investigate the significance of variations in neurovascular bundle (NVB) formation observed on preoperative magnetic resonance imaging (MRI) regarding postoperative potency after nerve-sparing radical retropubic prostatectomy (RRP).
Methods: Preoperative MRI was performed in 93 patients who underwent bilateral nerve-sparing RRP for clinically localized prostate cancer and were followed up for at least 12 months after surgery. Judging from the MRI scans, patients were categorized into three groups: group 1, patients with no definite NVB observed on MRI, group 2, those with probable NVB formation observed on MRI but not definite, and group 3, those with NVB more definitely observed on MRI.
Objective: We investigated the prognostic significance of tumor necrosis in primary transitional cell carcinoma (TCC) of upper urinary tract.
Methods: We retrospectively analyzed the records of 119 patients who received surgical management for primary TCC of upper urinary tract. The presence or absence of tumor necrosis was evaluated based on the macroscopic description of the tumor.