[Surgical treatment of a patient with tubular colonic duplication complicated by perforation and peritonitis]. / Uspeshnoe lechenie patsienta s tubulyarnoi duplikatsiei tolstoi kishki, oslozhnennoi perforatsiei i peritonitom.

We present successful treatment of a patient with tubular colonic duplication complicated by fecal impaction, perforation and fecal peritonitis. This anomaly is usually detected in children younger 2 years old. In adulthood, this diagnosis is of a precedent-setting nature. If the diagnosis was not confirmed in early childhood, the absence of typical clinical picture, long-term course of disease and difficult interpretation of clinical data complicate subsequent verification of congenital anomaly. Only infectious complications and emergency surgery in adults can make a correct diagnosis.

[Staged approach in the treatment of patients with enterocutaneous fistulae]. / Etapnyi podkhod v lechenii bol'nykh s nesformirovannymi kishechnymi svishchami.

OBJECTIVE: To determine an optimal approach in the treatment of patients with intestinal fistulae. MATERIAL AND METHODS: We have used the above-mentioned algorithm in the treatment of 46 patients. The majority of patients (n=44, 96%) were transferred under supervision of our multidisciplinary team with severe water-electrolyte disturbances and signs of secondary protein-energy malnutrition (PEM) that required complex combined nutritional support. A two-stage approach was applied in all cases. The first one was conservative and included correction and prevention of infectious complications, nutritional and metabolic therapy, local wound treatment, and anatomical assessment of the fistula. The second stage was reconstructive and implied various reconstructive interventions not earlier than 3 months after formation of the fistula. RESULTS: Conservative approach was followed by fistula healing in 6 patients, surgery was required in 25 patients. Complications with subsequent redo surgery occurred in 4 cases. In all cases, favorable outcome was noted. All 25 patients were discharged. Three patients refused reconstructive surgery after development of fistula, they were also discharged. Mortality rate was 26% (n=12). CONCLUSION: A multidisciplinary two-stage approach can significantly improve treatment outcomes in patients with intestinal fistulae.

[Prediction and differentiated approach in the treatment of patients with secondary peritonitis and abdominal sepsis]. / Prognozirovanie i differentsirovannyi podkhod v lechenii bol'nykh s vtorichnym peritonitom i abdominal'nym sepsisom.

OBJECTIVE: To identify the most important high risk criteria for predicting course of disease, as well as optimal preoperative preparation and surgical strategy in patients with secondary peritonitis. MATERIAL AND METHODS: A prospective study enrolled 43 patients with diffuse secondary peritonitis. RESULTS: Significant predictors were Charlson's comorbidity index (p=0.001) and SOFA score of organ dysfunction within 3 days after admission. Rapid regression of organ dysfunction (SOFA1 - p=0.0001, SOFA2 - p=0.012, SOFA3 - p=0.017) and reduced time of examination and preoperative preparation (threshold value - 520 min after admission) are predictors of favorable outcome in patients with diffuse secondary peritonitis. There was no reliable correlation between the treatment outcome and preoperative preparation (infusion volume p=0.23, duration p=0.37, absence/presence of antibacterial therapy p=0.26). Elimination or control of infection is the fundamental principle of the management of patients with diffuse secondary peritonitis.

An investigation of the electrical and optical properties of thin iron layers grown on the epitaxial Si(111)-(2 × 2)-Fe phase and on an Si(111)7 × 7 surface.

Electrical and optical properties of thin iron layers grown at room temperature on the epitaxial silicide Si(111)-(2 × 2)-Fe phase and on an Si(111)7 × 7 surface were investigated using in situ Hall effect registration, atomic force microscopy, and optical spectroscopy. It was established that Si(111)-(2 × 2)-Fe phase has semiconducting properties with a 0.99 eV effective band gap and acts as a diffusion barrier for the deposited iron atoms, preventing intermixing with the substrate at room temperature. Peculiarities in the optical spectra of a sample with a 2 nm iron film grown on the Si(111)-(2 × 2)-Fe phase typical for both metal and semiconducting natures prove a conservation of the phase under the iron layer. The process of iron growth on the Si(111)-(2 × 2)-Fe phase is accompanied by the development of high stress in the subsurface area resulting in band dispersion changes. Apparently the tension reaches a maximum at an iron layer thickness of 1.35 nm, and a high effective hole mobility equal to 820  cm(2) V(-1) s(-1) was registered.