Microsurgical penile revascularization for ischemic erectile dysfunction:Cumulative effective rate over time and factors affecting surgical outcomes.

Objectives: This study aimed to clarify the cumulative effectiveness of microsurgical penile revascularization over time and factors that affect surgical outcomes.

Subjects And Methods: This study analyzed 114 men with a median age of 30.5 years.

Recovery of the hibernating cavernosum by penile revascularization.

Objective: Chronic ischemia-related cavernous dysfunction is considered irreversible. However, in certain patients, cavernous function appears to recover with penile revascularization. In this study, we investigated a potential cavernous dysfunction reversibility from a clinical perspective.

Robot-assisted partial nephrectomy in younger versus older adults with renal cell carcinoma: a propensity score-matched analysis.

Purpose: Our study aimed to compare the surgical outcomes of robot-assisted partial nephrectomy (RAPN) between younger and older patients after adjusting for their background differences. We particularly assessed RAPN outcomes and safety in older patients.

Methods: We retrospectively evaluated 559 patients clinically diagnosed with T1 renal cell carcinoma (RCC) and treated with RAPN between 2013 and 2022 at five institutions in Japan.

Comparison of robot-assisted partial nephrectomy with soft coagulation and double-layer technique for complex and non-complex tumors.

Objectives: To compare the postoperative outcomes of robot-assisted partial nephrectomy when only the inner layer is sutured (single-layer technique with soft coagulation) with those when sutures are placed in the inner and outer layers (double-layer technique) in patients with and without complex renal tumors.

Methods: This retrospective three-institution study included 371 patients with renal tumors who underwent robot-assisted partial nephrectomy with a double-layer technique or a single-layer technique with soft coagulation. Tumors that were cT1b, completely embedded, located in the renal portal, or had a RENAL score of ≥10 were considered complex.

Clinical application of virtual imaging guided Robot-assisted partial nephrectomy.

Objectives : To evaluate whether virtual partial nephrectomy images could help surgeons identify vascular and collecting system around tumors during actual surgery. Materials & methods : We retrospectively analyzed 36 patients who underwent robot-assisted partial nephrectomy (RAPN) between 2016 and 2017. Virtual partial nephrectomy images were created from preoperative CT images using computer software, and then analyzed.

Spontaneous recovery of severely impaired penile arterial flow before urethroplasty for pelvic fracture urethral injury.

A 21-year-old male presented to our hospital for life-threatening pelvic fracture, mandating emergent transarterial embolization of the right internal pudendal artery. At five-month post-injury, penile arterial flow was severely impaired, thus penile revascularization surgery were planned, before attempting urethroplasty for a 2-cm gap in the posterior urethra. However, reevaluation angiography results obtained two months later revealed spontaneous recovery of penile arterial flow.

[ROBOT-ASSISTED RADICAL PROSTATECTOMY FOR MEN AGE 75 AND OLDER].

(Objectives) Surgical treatment prostate cancer in elderly patients is controversial. However, robot-assisted radical prostatectomy (RARP) is a less invasive procedure than conventional surgery. Therefore, we perform RARP for elderly patients whose general condition is good (Performance status ≤1).

[One-Step Laparoscopic Surgery for Two Regions : Pelvi-Ureteric Junction Obstruction and Mid Ureteral Obstruction Due to Umbilical Ligament].

The patient first presented with left flank pain at the age of 15. Computed tomography (CT) and ultrasonography performed at that time revealed left hydronephrosis and hydroureter. Mid-ureteral obstruction was suspected,and he underwent balloon catheter dilation of the mid-ureteral obstruction.

[MICROCYSTIC VARIANT OF UROTHELIAL CARCINOMA IN URINARY BLADDER: A CASE REPORT].

In the present report, we describe a patient with microcystic variant of urothelial carcinoma in urinary bladder. In March 2016, a 71-year-old man presented with bladder tumors found incidentally by ultrasonography. Cystoscopy and contrast-enhanced computed tomography (CT) revealed multiple invasive tumor of posterior wall, with a maximum diameter of 33 mm.

[Two Cases of Overwhelming Post-Splenectomy Infection].

In this report, we describe two cases of overwhelming post-splenectomy infection (OPSI). The first case was in a 70-year-old man who received a splenectomy in 2012 due to pancytopenia induced by hepatic cirrhosis. He presented with fever and fatigue.

Virtual cavernoscopy: a novel diagnostic tool for use in the corpus cavernosal lumen in patients with erectile dysfunction.

Objective: • To evaluate virtual cavernoscopy as a diagnostic tool in erectile dysfunction.

Patients And Methods: • Forty patients who visited our hospital for investigation of erectile dysfunction underwent cavernosography using three-dimensional (3D)-computed tomography (CT). • Virtual cavernoscopic images were reconstructed from 3D-CT data.

Three-dimensional CT cavernosography: reconsidering venous ligation surgery on the basis of the modern technology.

Objective: • To examine the feasibility of three-dimensional (3D) CT cavernosography in the diagnosis of corporal veno-occlusive dysfunction.

Patients And Methods: • The subjects were 55 patients who had failed to respond to phosphodiesterase type 5 inhibitors. We performed pharmacodynamic infusion cavernosometry and cavernosography, using 60 mg papaverine hydrochloride.

Effect of aldosterone on isolated human penile corpus cavernosum tissue.

Objective: To clarify the physiological effects of aldosterone on human penile corpus cavernosum (hPCC) tissue, as aldosterone has a wider physiological action than just the maintenance of electrolyte balance, and there are mineralocorticoid receptors, i.e. aldosterone receptors, in hPCC tissue.

Variations of the internal pudendal artery as a congenital contributing factor to age at onset of erectile dysfunction in Japanese.

Objective: To investigate the relationship between variations of the pelvic artery arrangement and the age at erectile dysfunction (ED) onset, as some men develop ED while relatively young, while others maintain erectile function into old age despite having cardiovascular diseases, thus congenital factors might be involved.

Patients And Methods: We examined 290 units of internal iliac arteries (IIA) in 145 patients showing repeated incomplete erectile response to intracavernosal injections with prostaglandin E(1). Patients with cardiovascular risk factors, neurological disease or pelvic injury were excluded.

Penile revascularization surgery for arteriogenic erectile dysfunction: the long-term efficacy rate calculated by survival analysis.

Objective: To determine the subjective and objective outcomes (by survival analysis) after penile revascularization surgery in patients with arteriogenic erectile dysfunction (ED), selected by established strict criteria.

Patients And Methods: The study included 51 patients diagnosed with arteriogenic ED caused by localised arterial lesions and who had microscopic penile revascularization surgery between January 1996 and March 2002. Before surgery, all patients had a full examination, including a medical and sexual history, laboratory testing, intracavernosal pharmacological tests, colour Doppler ultrasonography (CDU), pharmacodynamic infusion cavernosometry and cavernosography, and digital subtraction angiography (DSA).

The neuronal and endothelium-dependent relaxing responses of human corpus cavernosum under physiological oxygen tension last longer than previously expected.

Background: Intracavernosal oxygen tension varies greatly in the process of erection. Blood extracted from the human penis demonstrates an increase from approximately 30 mmHg Po(2) in the flaccid state to 100 mmHg in the erect state of the penis. In the present study, using these levels as a guide, we investigate how the NO-dependent relaxation of human corpus cavernosum changed under physiological oxygen tensions ranging from approximately 30 to 100 mmHg.