23 research outputs found

    Laparoscopic herniorrhaphy in children with acute inflammatory diseases of the abdominal cavity

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    Institutul de Cercetări științifice Ăźn Chirurgia Pediatrică, Universitatea Națională de Cercetări Medicale „N.Pirogov”, Moscova, Rusia, Al XII-lea Congres al Asociației Chirurgilor „Nicolae Anestiadi” din Republica Moldova cu participare internațională 23-25 septembrie 2015Introducere: Prezența unui proces inflamator-distructiv acut Ăźn cavitatea abdominală este pe larg considerată ca o contraindicație pentru herniorafia laparoscopică simultană. Material și metode: În perioada 2010-2012, 240 de copii cu vĂźrsta 5-14 ani, au fost spitalizați cu manifestările clinice ale abdomenului acut și au fost supuși intervențiilor chirurgicale urgente. În timpul laparoscopiei la 29 pacienți (18 băieți și 11 fete) a fost depistat processus vaginalis persistent (PVP): Ăźn 25 de cazuri unilateral și Ăźn 4 cazuri - bilateral. Nouăsprezece copii din acest lot au fost diagnosticați cu formele distructive ale apendicitei acute (Ăźn 6 cazuri complicate cu peritonită locală), 5 – cu pelvioperitonită, 4 – cu limfadenită mezenterică acută și 1 copil – cu apoplexie ovariană. La toți pacienții au fost efectuate intervenții simultane – asanarea focarului inflamator și ligaturarea subcutanată endo-asistată (SEAL) a PVP. Rezultate: Nu a fost Ăźnregistrat nici un caz de conversie. După intervenția de asanare a focarului inflamator (apendicectomie, rezecție de ovar, etc.) a fost efectuată SEAL conform metodei modificate de autori. Durata SEAL nu a depășit 6 minute pentru hernia unilaterală și 9 minute Ăźn cazuri bilaterale. Postoperator toți copii au primit un tratament standard. În toate cazurile evoluția postoperatorie a fost favorabilă. Complicații abdominale sau la nivelul canalului inghinal nu au fost Ăźnregistrate. Examenul ultrasonor și testele de laborator au confirmat rezolvarea completă a procesului inflamator. Toți pacienții au fost externați complet recuperați. Concluzii: Herniorafia laparoscopică simultană la copiii cu procese acute inflamatorii Ăźn cavitatea abdominală nu este urmată de elevarea riscului complicațiilor postoperatorii.Introduction: The presence of an acute inflammatory and destructive process in the abdominal cavity is commonly a contraindication to the one-stage laparoscopic herniorrhaphy. Material and methods: From 2010 to 2012, 240 children, 5-14 years of age, were admitted to hospital with a clinical picture of acute abdomen and all of them were urgently operated on. During laparoscopy in 29 patients (18 boys and 11 girls) a persisted processus vaginalis (PPV) was found: unilateral in 25 cases and bilateral in 4 cases. In 19 children from this group destructive forms of acute appendicitis (in 6 cases complicated by local peritonitis) were diagnosed as well as 5 – pelvioperitonitis, 4 – acute mesenteric lymphadenitis, and 1 – ovarian apoplexy. All patients underwent simultaneous procedures – both inflammatory focus treatment and subcutaneous endo-assisted ligation (SEAL) of PPV. Results: There was no conversion in any case. After the intervention for treatment of inflammatory focus (appendectomy, ovarian resection, etc.) the SEAL was performed according to our modification. SEAL duration was not more than 6 minutes for unilateral hernia and 9 minutes for bilateral. Postoperatively, all children received a standard therapy. In all cases the postoperative period was favorable. Complications in abdominal cavity or inguinal canals were not registered. Ultrasound examination and blood tests confirmed a complete relief of the inflammatory process. All patients were discharged with full recovery. Conclusions: Simultaneous laparoscopic herniorrhaphy in children with acute inflammation in the abdominal cavity does not increase the risk of postoperative complications

    Survey of highly non-Keplerian orbits with low-thrust propulsion

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    Celestial mechanics has traditionally been concerned with orbital motion under the action of a conservative gravitational potential. In particular, the inverse square gravitational force due to the potential of a uniform, spherical mass leads to a family of conic section orbits, as determined by Isaac Newton, who showed that Kepler‟s laws were derivable from his theory of gravitation. While orbital motion under the action of a conservative gravitational potential leads to an array of problems with often complex and interesting solutions, the addition of non-conservative forces offers new avenues of investigation. In particular, non-conservative forces lead to a rich diversity of problems associated with the existence, stability and control of families of highly non-Keplerian orbits generated by a gravitational potential and a non-conservative force. Highly non-Keplerian orbits can potentially have a broad range of practical applications across a number of different disciplines. This review aims to summarize the combined wealth of literature concerned with the dynamics, stability and control of highly non-Keplerian orbits for various low thrust propulsion devices, and to demonstrate some of these potential applications

    Dynamics and Control for Nonideal Solar Sails Around Artificial Lagrangian Points

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    Passive Control of Displaced Solar Sail Orbits

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    Passive Stability Design for Solar Sail on Displaced Orbits

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    Simple Correction Algorithm of Scanning Horizon Sensor Measurement for Earth Oblateness

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