Vascularization of vessel pedicle in hypospadias and its relationship to near‑period complications

Abstract

The present study evaluated the relationship between the vascularization of vessel pedicle and the near-period complication by assessing the surgery effect and recognizing the blood supply of the material for urethra reconstruction and collected the follow-up of the hypospadias patients after the operation. We illuminated the prepuce by a lighting technique using cold light and then photographed, and recorded the distribution and the quantity of vessels. Then classified, analyzed and summarized the vascularization of vessel pedicle. Patients who were repaired by Duckett technique were followed up for 1–5 months after the operation. We classified vessel pedicle vascularization in hypospadias cases into four patterns based on the predominant blood vessels. The number of predominant vessels had no exact relationship to the meatal location. The incidence of fistula and stricture had no exact relationship to the number of predominant vessels. In conclusion, there is no exact congruent relationship between the types of vascularization with the meatal location. Vascularization of vessel pedicle had no exact relationship with urethral fistula or stricture.

The Distribution of Preputial Vessels in Different Severity of Rat Congenital Hypospadias Model: Imaging study using Micro-Computerized Tomograph

“…The prepuce vessels are the terminal branch, and the capillaries are extremely narrow, hence knowledge about the vessels is limited. Considerable work has been done to study prepuce vessels, such as transillumination with endoscopic cold light source, microscopic observation of gelation and India ink perfusion, 3D reconstruction of histological sections [10][11][12]. In this study, an advanced technology, micro-CT scanning, was used to analyze the distribution of preputial vessels.…”

“…So far little research has been carried out in the study of preputial vascular distribution of patients with hypospadias. Previous literature has reviewed the anatomy of hypospadias preputial vessels using methods such as trans-illumination, microscopic observation and 3D computer reconstruction [10][11][12]. Although these approaches have studied the vascular anatomy, the preputial vascular networks are still difficult to measure in 3D.…”

The Distribution of Preputial Vessels at Different Severity of Rat Congenital Hypospadias Model

“…It is reported that preputial vascular pedicle flap ischemia and necrosis are the reason for fistula. The exact relationship between the postoperative complications and the structure of the patients' preputial blood vessels is unclear [10]. To figure out this problem, we utilized micro-CT for 3D analysis of morphologic characteristic on the rat model of hypospadias.…”

“…The prepuce vessels are the terminal branch, the capillaries are extremely narrow, thus knowledge about the vessels is limited. Much work has been done to study prepuce vessels, such as transillumination with endoscopic cold light source, microscopic observation of gelation and India ink perfusion, 3D reconstruction of histological sections [10][11][12]. In this study, an advanced technology, micro-CT scanning, is used to analysis the distribution of preputial vessels.…”

“…So far little research has been done in the study of preputial vascular distribution of patients with hypospadias. Several literatures have described the anatomy of hypospadias preputial vessels using methods such as trans-illumination, microscopic observation and 3D computer reconstruction [10][11][12]. Although these approaches have described the vascular anatomy, the preputial vascular networks are still difficult to quantify in 3D.…”