No abstract

Plasma from weeks 2 and 3 after OCR stimulates in vitro EC BPF, INV, and MIG. A significant difference from preop baseline was noted only for the INV assay in week 4. The OCR and previous MICR results were largely similar. Tumor angiogenesis may be stimulated after OCR and MICR for 3 weeks. Further studies are warranted.

Over one out of three of dysplastic polyps and 10% of adenomas were invasive cancers. OCR is advised for dysplastic polyps; ESD, EMR, and wedge resection are appropriate for non-dysplastic adenomas.

This study found significantly lower pain medication requirements for PODs 1 to 3 for the WH group; however, because there were no differences in the pains scores between the groups, firm conclusions regarding WH CO cannot be made.

Silicon nitride thin films have been deposited on silicon substrates by reacting SIC14 and NH3 at 550~176The effects of deposition temperature and of SIC14 and NH3 concentrations on the deposition rate have been studied. The etch rate of the deposited films is shown to be a function of the deposition temperature. Electrical evaluation has shown the dielectric strength to be independent of contact area and film thickness and the dielectric constant to be in the range seven to eight. Surface charge plus surface state density values range from 7 to 18 x 10H/cm ". Nonlinear I-V characteristics of the films have been observed. The deposited films are extremely effective diffusion masks for sodium.

ESD/EMR and WR appear to be safe but techniques are evolving. Larger studies are needed.

As part of an investigation of in situ etching of germanium substrates in a reaction chamber, prior to epitaxial deposition, a study was made of the kinetics and reaction chemistry of the Ge-HC1 and Ge-GeC14 etch reactions taking place in flowing hydrogen. Recent work has been reported on the in situ gas phase etching of silicon and germanium samples by Bean and Gleim (1), Lang and Stavish (2), and Amick et al. (3). The latter authors have reported in detail on the substrate texture obtained by gas phase etching prior to epitaxial deposition.

Aim Approximately 20%–40% of the patients with re‐do ileal pouch anal anastomosis (IPAA) experience pouch failure. Salvage surgery can be attempted in this patient group with severe aversion to permanent ileostomy. The literature regarding secondary IPAA revision after re‐do IPAA failure is scarce. Methods All patients who underwent a secondary IPAA revision after re‐do IPAA failure between September 2016 and July 2021 in a single centre were included. Short‐ and long‐term outcomes and quality of life in this patient group are reported. Results Ten patients who had secondary IPAA revision for re‐do IPAA failure were included. All patients had ulcerative colitis. Nine of these patients had pelvic sepsis and one patient had a mechanical issue. Mucosectomy and handsewn anastomosis was performed in nine patients. The existing pouch was salvaged in six patients and four patients had pouch excision and re‐creation. Two patients had postoperative pelvic sepsis. Pouch retention rate was 78% in a median of 28 months. None of the patients had short‐gut syndrome. The procedure was associated with good quality of life (median Cleveland Global Quality of Life Index 0.8). All patients would undergo the same surgery if needed. Conclusion Secondary IPAA revision after a failed re‐do IPAA can be an option in patients with severe aversion to permanent ileostomy if re‐do IPAA fails and it is associated with good outcomes. This patient group should be carefully evaluated and referred to specialized centres if required.