Publications by authors named "Kojiro Nishio"

In the past, transvaginal surgery, native tissue restoration, or obliterative methods have been used in the majority of pelvic organ prolapse (POP) surgeries. Since laparoscopy has gained popularity, other procedures have been created to provide additional POP repair alternatives. Laparoscopic technique offers many advantages compared to open or transvaginal surgery when it comes to anatomical and surgical outcomes, recurrence rates, and patient's acceptance.

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In the patients undergoing pelvic organ prolapse (POP) repairs, the incidence of occult uterine endometrial cancer is low and there is no established management procedure for preoperative cancer screening. We report a case of pelvic reconstruction in abdominal trachelectomy and bilateral salpingo-oophorectomy for occult uterine endometrial cancer found in specimens removed in the context of laparoscopic sacrocolpopexy (LSC). A 70-year-old woman presented to our center with cystocele.

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Objectives: Lower urinary tract symptoms (LUTS) and sexual dysfunction (SDys) are common problems that affect quality of life (QOL) in elderly men. In addition to prescribed drugs, many over-the-counter medications including supplements are used to treat QOL diseases. Phosphodiesterase inhibitors are reported to be effective for both LUTS and SDys by increasing nitric oxide levels.

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  • * A survey of hematologists across 22 major institutions in Japan revealed that while nearly all agree sperm cryopreservation is essential, many do not adequately inform or provide the option to patients before chemotherapy.
  • * Of 213 young males undergoing chemotherapy during the study, only 28.6% opted for sperm cryopreservation, indicating a need for a better system and collaboration among hospitals to promote fertility preservation.
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  • The study assessed the effectiveness and safety of Gosha-jinki-gan (GJG) in 30 patients suffering from nocturia who didn't respond to standard treatments like α1-blockers and antimuscarinics.
  • Patients took GJG extract powder three times daily for 12 weeks, resulting in significant improvements in subjective measures of quality of life and urinary frequency, while some objective outcomes remained unchanged.
  • Although mild adverse events occurred in 10% of patients, GJG is considered a safe and potential alternative therapy for nocturia, but more research is needed to understand how it works.
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  • Estrogen exposure may increase the risk of testicular germ cell cancers, mainly observed in animal studies.
  • A case is presented of a 30-year-old transgender woman who developed a testicular teratoma while undergoing hormone therapy with estradiol and progesterone.
  • The presence of estrogen receptor beta in the tumor raises questions about the potential role of hormone exposure in tumor development, although it's not definitive.
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We evaluated the efficacy and tolerability of Hachimi-jio-gan (HJG; bā wèi dì huáng wán) and Gosha-jinki-gan (GJG; jì shēng shèn qì wán), two traditional Japanese medicines, in 60 patients with lower urinary tract symptoms (LUTS) having cold sensitivity unresponsive to α1-blockers or antimuscarinic drugs. All patients received a mixture of HJG or GJG for 12 weeks in addition to α1-blockers or antimuscarinic drugs as add-on therapy. International Prostate Symptom Score, International Prostate Symptom Score-Quality of Life, Benign Prostatic Hyperplasia Impact Index, and the number of nocturnal voids were statistically much improved.

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  • The study examined the impact of a combination of L-arginine and Pycnogenol(®) on Japanese men with oligoasthenozoospermia and mild erectile dysfunction.
  • After 2 and 4 months of treatment, participants showed significant improvements in sperm concentration and erectile function metrics as measured by the International Index of Erectile Function (IIEF).
  • The findings suggest that the combination may enhance both sperm quality and erectile function by increasing nitric oxide production, potentially benefiting infertile men.
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When sperm cannot be retrieved from the testes of patients with azoospermia due to spermatogenic dysfunction (ASD), there is no rational way for the patient to become a biological father. We investigated the possibility of inducing spermatogenesis in such patients by hormonal therapy with recombinant human follicle-stimulating hormone (rhFSH) alone. Twenty-six ASD patients who could not obtain spermatozoa by microdissection testicular sperm extraction (micro-TESE) were confirmed to have arrested spermatogenesis at the late stage of maturation arrest.

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Objectives: To investigate factors influencing the degree of difficulty in finding and maintaining an appropriate plane on the surgical capsule of the prostate during holmium laser enucleation of the prostate.

Methods: A total of 116 men undergoing holmium laser enucleation of the prostate for benign prostate hyperplasia between January 2010 and September 2013 at our hospital were included in this analysis. The degree of difficulty in finding and maintaining the plane of the surgical capsule of the prostate was retrospectively evaluated and graded by using video-based analysis according to newly defined criteria (grade I, least difficult; grade IV, most difficult).

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Adult-onset idiopathic male hypogonadotropic hypogonadism (IMHH) is a very rare but treatable disease. This study was conducted to examine the efficacy and safety of a combination of human chorionic gonadotropin (hCG) and recombinant human follicle-stimulating hormone (rhFSH) for inducing spermatogenesis in men with adult-onset IMHH. Seven men (34-45 years of age) with azoospermia and/or sexual dysfunction, with a low serum testosterone concentration, and apulsatile secretion of luteinizing hormone, were referred to our hospital for infertility.

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Dynamic motion of the pelvic floor muscles during voiding was analyzed using real-time magnetic resonance imaging. To evaluate the contraction of the pelvic floor muscles, striated urethral sphincter distance, levator ani muscle thickness and anterior fibromuscular stroma distance were measured. The percent contraction of the striated urethral sphincter from before voiding to just before initiation of voiding was 14% in the normal group and 5% in the voiding dysfunction group.

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Adrenocortical cancer (ACC) is a rare and aggressive endocrine tumor. The patient presented with a large retroperitoneum tumor and lung metastases. Removal of the adrenocortical tumor with part of the transverse colon and tail of the pancreas, spleen and kidney was successfully performed following chemotherapy.

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Background: A screening method that focuses on the early detection of high-grade prostate cancer is required. In this study, two sets of nomograms were developed, one to predict the presence of prostate cancer, and the other to predict the presence of high-grade prostate cancer (defined as Gleason Score > or =7).

Patients And Methods: Prostate biopsies were obtained from 396 men with an abnormal serum level of prostate-specific antigen (PSA).

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Introduction: Erectile and endothelial dysfunction are common pathologies of multiple cardiovascular risk factors and are considered longitudinal predictors of cardiovascular events. Oxidative stress and decreases in testosterone levels play an important role in the pathogenesis of endothelial dysfunction.

Aim: We sought to determine whether the severity of erectile dysfunction (ED) was associated with individual levels of testosterone and oxidative stress, and whether treatment with a phosphodiesterase type 5 inhibitor could reduce oxidative stress and increase testosterone availability.

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Objectives: The purpose of this preliminary study was to analyze the dynamic changes in the configuration of the neobladder and naïve bladder during voiding using real-time MRI.

Methods: This study included 10 male patients who had a radical cystectomy and an ileal orthotopic neobladder due to organ-confined bladder cancer and had good urinary function, and 5 male control volunteers. With the subjects in the lateral decubitus position, real-time MRI was performed during micturition.

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A 38-year-old man in a wheelchair for spinal cord injury from a traffic accident was referred to our hospital with complaint of dull right flank pain. The patient had a history of skin ulcer formation on both toes due to poor circulation. Abdominal ultrasonography and computed tomographic scan revealed a huge retroperitoneal tumor compressing the right kidney.

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