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T Young-Fadok

Publications and source records attributed to T Young-Fadok.

6 recordsLinked to original sources

Pan-colonic decrease in interstitial cells of Cajal in patients with slow transit constipation.

BACKGROUND: Interstitial cells of Cajal (ICC) are required for normal intestinal motility. ICC are found throughout the human colon and are decreased in the sigmoid colon of patients with slow transit constipation. AIMS: The aims of this study were to determine the normal distribution of ICC within the human colon and to determine if ICC are decreased throughout the colon in slow transit constipation. PATIENTS: The caecum, ascending, transverse, and sigmoid colons from six patients with slow transit constipation and colonic tissue from patients with resected colon cancer were used for this study. METHODS: ICC cells were identified with a polyclonal antibody to c-Kit, serial 0.5 microm sections were obtained by confocal microscopy, and three dimensional software was employed to reconstruct the entire thickness of the colonic muscularis propria and submucosa. RESULTS: ICC were located within both the longitudinal and circular muscle layers. Two networks of ICC were identified, one in the myenteric plexus region and another, less defined network, in the submucosal border. Caecum, ascending colon, transverse colon, and sigmoid colon displayed similar ICC volumes. ICC volume was significantly lower in the slow transit constipation patients across all colonic regions. CONCLUSIONS: The data suggest that ICC distribution is relatively uniform throughout the human colon and that decreased ICC volume is pan-colonic in idiopathic slow transit constipation.

Adolescent↗

Temporary transverse colostomy vs loop ileostomy in diversion: a case-matched study.

HYPOTHESIS: For temporary fecal diversion, transverse colostomy (TC) has superior safety, but loop ileostomy (LI) has superior management qualities. METHODS: Of patients with TC or LI seen between 1988 and 1997, 63 patients were matched for diagnosis, operative procedure, and date of surgery. The 2 groups were then compared for hospital/postoperative mortality and morbidity and stoma complications. RESULTS: Mortality rates were 6.3% for the TC group and 1.6% for the LI group (P =.25). Morbidity rates for stoma creation and for stoma closure were 47.6% and 10% (P =.19), respectively, for the TC group, and 36.5% and 6.3% (P>.99), respectively, for the LI group. Most morbidity events were minor, and neither procedure-related nor other medical complications showed a significant difference between the groups. However, patients with a TC were significantly more likely to experience skin trouble around the stoma (TC vs LI, 15.9% vs 3.2%) and leakage around the stoma (TC vs LI, 12.7% vs 1.6%). CONCLUSIONS: Regarding safety, TC and LI should be considered equivalent options for temporary fecal diversion. We recommend further study comparing the 2 procedures with regard to patient perception and quality of life.

Adult↗

Decreased interstitial cell of cajal volume in patients with slow-transit constipation.

BACKGROUND & AIMS: The cause of slow-transit constipation is incompletely understood. Recent observations suggest a central role for interstitial cells of Cajal in the control of intestinal motility. The aim of this study was to determine the volume of interstitial cells of Cajal in the normal sigmoid colon and in the sigmoid colon from patients with slow transit constipation. METHODS: Sigmoid colonic samples were stained with antibodies to protein gene product 9.5, c-Kit, and alpha-smooth muscle actin. Three-dimensional reconstruction of regions of interest was performed using consecutive images collected on a laser scanning confocal microscope and ANALYZE software. RESULTS: Volume of interstitial cells of Cajal was significantly decreased in all layers of sigmoid colonic specimens from patients with slow-transit constipation compared with normal controls. Neuronal structures within the colonic circular smooth muscle layer were also decreased. CONCLUSIONS: A decrease in the volume of interstitial cells of Cajal may play an important role in the pathophysiology of slow-transit constipation.

Adult↗

[Current concepts in the treatment of hemorrhoids].

Hemorrhoidal disease is a common problem that affects a large number of patients. Usually multiple remedies are used by those patients without medical advise and for several reasons consultation with a specialist is often delayed. The large prevalence of popular misconception adds to this and occasionally makes adequate treatment difficult. Herein we present a brief and useful review of current relevant concepts in the management of patients with hemorrhoidal disease.

Hemorrhoids↗

[Sclerosing mesenteritis: a disease of malignant appearance].

Sclerosing mesenteritis is a rare benign disorder of unknown etiology that often resembles a neoplasm. Numerous terms have been used in the past to describe this entity which has a variable clinical presentation and is characterized by thickening of the intestinal mesentery. Accurate information regarding the epidemiology, natural course and therapeutic response of the disease is sparse. Herein we present a review of the literature and a brief discussion of relevant concepts for the diagnosis and treatment of patients with sclerosing mesenteritis.

Adolescent↗