Search results for "Pouch"
showing 10 items of 71 documents
Chirocephalus sarpedonis sp. nov. (Branchiopoda, Anostraca, Chirocephalidae) from Turkey questions the monophyly of the traditional Chirocephalus spe…
2017
Chirocephalus sarpedonis sp. nov. (Anostraca, Chirocephalidae), collected in a temporary pond in Lycia (Turkey), is described and its affinities with the other species of the genus are investigated based on both morphology and mtDNA cytochrome oxidase subunit I (COI) sequences. Male and female morphology suggests its major affinity with the species belonging to the bairdi-group although the morphological peculiarities of the species make it difficult to ascribe C. sarpedonis sp. nov. to any of the Chirocephalus species-groups which are currently used in the systematics of the genus. Furthermore, molecular analyses based on the comparison with available Chirocephalus spp. COI sequences fail …
Male mating success during parturial intermoults in the terrestrial isopod Armadillidium vulgare revealed by the use of a microsatellite locus
2007
3 pages; International audience; We investigated the value of microsatellite DNA markers to improve our knowledge of mating strategy with inference to sperm competition in particular, in the woodlouse Armadillidium vulgare. In terrestrial isopods, mature females develop a brood pouch or marsupium before egg laying, the pouch being formed by overlapping oöstegites during a special moult called parturial moult. Under laboratory conditions, we show that Armadillidium vulgare females are able to mate during parturial intermoults, even in the presence of a physical barrier such as that represented by the ventral marsupial plates. Our results reveal that the contribution of a second male mating w…
Natural history of cytomegalovirus infection in a series of patients diagnosed with moderate-severe ulcerative colitis
2011
AIM: To evaluate the natural history of human cytomegalovirus (HCMV) infection in a series of 28 ulcerative colitis patients in whom the search for HCMV was positive. METHODS: A series of 85 patients with moderate-severe ulcerative colitis flare-up were evaluated for a HCMV search by performing a haematoxylin and eosin stain, immunohistochemical assay and nested polymerase chain reaction on rectal biopsies. Among 85 screened patients (19 of whom were steroid resistant/dependant), 28 were positive for HCMV; after remission the patients were followed up clinically and histologically. RESULTS: Among the 22 patients with complete follow-up, in 8 (36%) patients HCMV-DNA persisted in the intestin…
Metabolic Evaluation of 94 Patients 5 to 16 Years After Ileocecal Pouch (Mainz Pouch 1) Continent Urinary Diversion
2003
PURPOSE In continent urinary diversion metabolic disturbances may be encountered in long-term followup. We evaluated metabolic consequences in patients with a minimum followup of 5 years after Mainz pouch 1 urinary diversion.At our institution continent urinary diversion using the ileocecal segment was performed between 1983 and 1995 in 458 patients. A total of 94 patients with an ileocecal pouch for a minimum of 5 years were reevaluated for metabolic changes. Median followup was 9.0 years. Routine laboratory parameters, blood gas analysis, vitamin B12, vitamin D25, cross-laps, bone specific alkaline phosphatase, osteocalcin and propeptide of type I collagen were obtained. Bone density was …
Urinary diversion in children and young adults using the Mainz Pouch I technique
1997
Objectives To determine the late complications and consequences for renal function, vitamin and acid-base metabolism after application of the Mainz Pouch I (MZP-I) technique in children and young adults. Patients and methods To November 1994, the MZP-I procedure was carried out in 463 patients at our institution, 91 of whom were children and adolescents (≤20 years old) using bladder augmentation in 21 and a continent cutaneous stoma in 70. A minimum follow-up of 1 year was possible in 87 patients or 163 renal units (RUs) with a mean of 5.5 years (range 1–10.5). Results At the last examination, 23 of 55 (42%) pre-operatively dilated RUs had improved, 131 of the 163 RUs (80%) were stable and …
CONVERSION FROM COLONIC OR ILEAL CONDUIT TO CONTINENT CUTANEOUS URINARY DIVERSION
2004
ABSTRACT Purpose: After ileal or colonic conduit diversion some patients, particularly adolescents, desire conversion to a continent diversion to improve quality of life. We report our long-term results on conversion from conduit diversion to continent cutaneous diversion. Materials and Methods: Between 1986 and 2001, 39 patients (mean age 24 years, range 6 to 49) underwent conversion from a colonic (21) or ileal conduit (18) to an ileocecal pouch (Mainz pouch I) with a mean followup of 102 months (range 18 to 192). Conversion was performed after a mean of 11 years (range 1 to 36) of conduit urinary diversion by incorporating the preexisting colonic/ ileal conduit and the ileocecal pouch. R…
100 cases of Mainz pouch: continuing experience and evolution.
1988
The surgical technique for creation of the Mainz pouch uses 10 to 15 cm. of cecum and ascending colon and 2 ileal loops of the same length for construction of a urinary reservoir. Initial applications of the Mainz pouch were for bladder augmentation after subtotal cystectomy and for continent urinary diversion. Current indications have been extended to complete bladder substitution after radical cystoprostatectomy with anastomosis of the pouch to the membranous urethra. For cosmetic reasons the umbilicus is used as a stomal site for continent urinary diversion, and the technique of intussuscepting the continence nipple has been modified accordingly. A total of 100 patients underwent a Mainz…
Long-term followup of the intussuscepted ileal nipple and the in situ, submucosally embedded appendix as continence mechanisms of continent urinary d…
2006
We analyzed stoma related complications and continence rates in patients who underwent continent urinary diversion with the cutaneous ileocecal pouch (Mainz pouch I). We compared the intussuscepted ileal nipple and in situ, submucosally embedded appendix as continence mechanisms.A total of 401 patients were included in a retrospective followup study. Continence mechanisms were the intussuscepted ileal nipple in 205 patients and the in situ, submucosally embedded appendix in 196.A total of 144 patients (36%) required intervention for a stomal complication. Of patients who received an intussuscepted ileal nipple 34 (17%) had stomal stenosis at a mean time to first stenosis of 43.8 months, 41 …
Conversion from colonic conduit into recto-sigmoid pouch (Mainz pouch II)
2005
The Mainz Pouch II has now been used widely and found to be a valuable addition to the various types of urinary diversion. The authors from Mainz describe how a colonic conduit can be converted into a Mainz Pouch II, and the expected outcome from such a procedure. OBJECTIVE To report our long-term results of conversion from conduit conversion into a continent anal urinary diversion, as after conduit urinary diversion in childhood, some patients wish to have a later conversion to a continent diversion to avoid external appliances and to improve their quality of life. PATIENTS AND METHODS Between 1992 and 2003, 139 patients had a urinary diversion with a recto-sigmoid pouch (Mainz pouch II), …
Ileocecal valve reconstruction during continent urinary diversion.
1994
During construction of an ileocecal reservoir, such as the Mainz or Indiana pouch, the ileocecal valve is lost. Subsequently, the intestinal transit time is shortened and malabsorption as well as diarrhea may result. Patients having undergone previous bowel resection as well as children with myelomeningocele who often already have frequent defecations will be heavily affected by the loss of the ileocecal valve. We have functionally reconstructed the ileocecal valve by embedding ileum into the ascending colon via a submucosal tunnel in analogy to the technique used when creating the continence mechanism during the Mainz pouch procedure using the appendix. Experimental results in 15 dogs demo…