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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    World journal of surgery 22 (1998), S. 899-902 
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The history of laparoscopy illustrates the interaction between the many areas of medicine and technology; in fact, the development of that technique is a cummulative effort of internists, gynecologists, and surgeons. At the beginning of our century, however, neither group was particularly open to the idea of scholarly exchange. In this respect, an early pioneer of laparoscopy, Georg Kelling (1866–1945) of Dresden and the story surrounding the invention of the laparoscopy are interesting exceptions. Although Kelling regarded himself a surgeon, he devoted a great deal of energy to the development of “nonsurgical” methods of treatment. He spent a great part of his life determining stomach capacity, constructing a semiflexible tube endoscope (straightened after the insertion), and attempting to alleviate gastrointestinal bleeding by means of high-pressure pneumoperitoneum ( lufttamponade ). To observe the effects of insufflation on abdominal organs, Kelling introduced a cystoscope into the abdominal cavity. In fact, the invention of “celioscopy” or laparoscopy (1901) can be called a synthesis of Kelling’s work with insufflation and his fascination with endoscopy.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 11 (1997), S. 785 -788 
    ISSN: 1432-2218
    Keywords: Key words: Endoscopic suture — Modified knot pusher — ``Knot before loop'' technique
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: In minimally invasive surgery intracorporal knot-tying is complicated by a limited field of vision and depth perception. Methods: The ``knot before loop'' technique aims to reduce intraabdominal movements in number and space needed. A grasping instrument 3 mm in diameter guides a slipfit hollow knot pusher with a notch to hold the thread, when extracorporally forming the knot on the instrument tip and an axial slot. The loop is finished under endoscopic vision, yet a second loop is created along the thread. The knot is tightened and secured by closing the second loop without troublesome instrument change. Results: The strength of the knot was tested and the feasibility of the instrument set was proven in pigs and 25 cholecystectomies and hernia repairs in humans. Conclusions: Endoscopic application of a secured slip knot is simplified by the ``knot before loop'' technique. The independent formation of the knot by the assisting personnel allows quick application, equivalent to the use of clips and staples. The benefit in cost saving is high.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 9 (1995), S. 497-500 
    ISSN: 1432-2218
    Keywords: Minimal invasive surgery ; Pneumoperitoneum ; Gasless laparoscopic surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Pneumoperitoneum, as a necessary precondition of laparoscopic procedures, represents a restriction of the surgeon's freedom of movement and can lead to rare but typical complications. We describe our first experiences with laparoscopic surgery without using pneumoperitoneum. Under direct vision and digital control a fan-formed wall retractor, which is attached to an electric lift arm, is introduced into the abdominal cavity. After raising the abdominal wall, the scope is introduced through the same access and the laparoscopic procedure can be started without the technical and physiopathological problems which may occur using a pneumoperitoneum. In this gasless laparoscopic procedure, simple valveless trocars and instruments can be used. Furthermore, an unlimited suction can be obtained without a loss of exposure. During anesthesia, neither increased ventilation nor increased ventilation pressure is necessary, and the surgeon has increased freedom of action. Not only special laparoscopic instruments, but the conventional instruments, used in open surgery, can also be employed in gasless laparoscopy. In this way we performed gasless laparoscopic surgery on 54 patients: cholecystectomy (n=37), abdominal exploration for NSAP (n=5) or tumor staging (n=4), fenestration of liver cysts (n=5), and appendectomy (n=3). We did observe three wound infections as related complications. Six times, we had to change the surgical procedure. Compared to the traditional procedure with a CO2 pneumoperitoneum, the results of the first gasless procedures demonstrate potential advantages.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 11 (1997), S. 383 -384 
    ISSN: 1432-2218
    Keywords: Key words: Wire mesh stent — Wall stent — Esophageal carcinoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. To bridge a malignant stenosis after esophageal cancer recurrence two silicon-coated wall stents were inplanted in a 52-year-old patient within 6 months. Two weeks after the second stent was implanted, clinical examination showed dislocation of the prosthesis. Intraoperatively the two stents were found sticking in the side-to-side jejunostomy of a former Billroth II operation, leading to perforation there.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 11 (1997), S. 868 -874 
    ISSN: 1432-2218
    Keywords: Key words: Laparoscopy without pneumoperitoneum — Abdominal wall lifting — Conventional instruments — Isopneumic laparoscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The insufflation of carbon dioxide into the peritoneal cavity is a routine technique of abdominal exposure in laparoscopic surgery. Because of adverse physiological effects and technical disadvantages of the pneumoperitoneum, alternative methods of abdominal wall lifting have been explored recently. Two groups of retraction systems exist: intraabdominal lifting and subcutaneous lifting of the abdominal wall. Some systems require additional pneumoperitoneum, because the extent of intraabdominal exposure is not sufficient. Other systems are working completely without gas insufflation. Two systems combine abdominal wall lifting with pressure on the internal organs. Every method allows the use of standard laparoscopic instruments, which originally were designed for a regular pneumoperitoneum. The use of a low-pressure pneumoperitoneum in combination with mechanical augmentation of the peritoneal cavity reduces physiological disadvantages of laparoscopy. But technical advantages, such as combination of laparoscopic and open techniques, can be realized only without gas insufflation. Conventional instruments have been designed to fit the ergonomical needs of isopneumic laparoscopy and to be employed with simple valveless cannulae.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 11 (1997), S. 856 -863 
    ISSN: 1432-2218
    Keywords: Key words: Pneumoperitoneum — Mechanical abdominal wall lifting — Balloon dissection — Isopneumic laparoscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Endoscopic surgery, as a result of over 90 years of investigation, has now become the most innovative part of general surgery; every procedure in the thoracic and abdominopelvic cavity, intraperitoneal or extraperitoneal, has been reviewed for feasibility. The basic principles in the management of surgical patients, however, have not changed: adequate exposure and good lighting remain important and may become more important with endoscopic techniques. Historical review shows the dependence of advances in laparoscopy upon technical development in the field of intraabdominal exposure as the result of two objectives: namely abdominal wall displacement and bowel retraction.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 11 (1997), S. 899 -901 
    ISSN: 1432-2218
    Keywords: Key words: Laparoscopy — Pneumoperitoneum — Gasless laparoscopy — Mononuclear phagocytes system — Rat model
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Numerous experimental and clinical investigations indicate that the mononuclear phagocyte system (MPS) has a relevant function in terms of physiological defense against tumor metastasis and bacterial infection. Consequently, a point of major interest is the influence of surgical techniques on the MPS function. Method: The model investigation examines the phagocytosis activity of the rat's MPS during conventional fundoplication (group 1, n= 10), laparoscopic fundoplication using a pneumoperitoneum (group 2, n= 10), and gasless laparoscopic fundoplication (group 3, n= 10). The MPS function is evaluated by an intravascular carbon clearance test (G. Biozzi). Results: The fastest carbon elimination half-life was found in group 3. By way of contrast, there was a significant increase of carbon half-life in group 2 (p 〈 0.005). Even group 1 caused less MPS depression (p 〈 0.1) than group 2. Conclusion: Gasless laparoscopic procedures have a favorable effect on phagocytosis activity. The CO2 pneumoperitoneum seems to be the main reason for a decreased antigen elimination in laparoscopic treatments.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 14 (2000), S. 448 -451 
    ISSN: 1432-2218
    Keywords: Key words: Laparoscopy — Colorectal surgery — Intrahepatic tumor cells — Hepatic metastases — Cancer — Animal model — Liver
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: We devised a standardized animal model to study the impact of laparoscopic colorectal surgery on intrahepatic tumor cell growth. Methods: The technique of laparoscopic surgery in the rat was extended by endoscopic inoculation of colon cancer cells (CC531) into the portal vein (1 × 104, 5 × 104, 1 × 105, 3 × 105, 5 × 105 cells/ml) of WAG/Rij rats (n= 25). As controls, five animals underwent laparotomy and open intraportal inoculation of 5 × 104 cells/ml. Results: Hepatic tumor growth occurred after inoculation of 5 × 104, 1 × 105, 3 × 105, and 5 × 105 cells/ml. Extrahepatic tumor and conflating hepatic tumor was observed after the inoculation of 1 × 105, 3 × 105, and 5 × 105 cells/ml. Concentrations of 5 × 104 cells/ml injected either laparoscopically or via an open technique led to single hepatic tumor nodules. No tumor growth was seen after inoculation of 1 × 104 cells/ml. Conclusions: Laparoscopic intraportal tumor cell inoculation is a feasible technique to create hepatic metastases. The inoculation of 5 × 104 CC531 cells leads to reliable cell growth that can be used to investigate the impact of various laparoscopic techniques on tumor spread.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 8 (1994), S. 111-113 
    ISSN: 1432-2218
    Keywords: Lymphocele ; Minimal invasive surgery ; Complication of renal transplantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Lymphoceles are a well-known complication of renal transplantation, with incidence rates up to 18%. The management of symptomatic lymphocele remains controversial. We report the case of a lymphocele which was successfully drained into the peritoneal cavity using laparoscopic surgery.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1435-2451
    Keywords: Portocaval shunt ; Liver cirrhosis ; Rat ; Lethality
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Im Lebercirrhose-Modell der Ratte hat die portocavale Anastomose eine sehr hohe Letalitet (87%). Durch eine präoperative Vorbereitung mittels einer Therapie, die einen eta blierten Stellenwert in der Behandlung der portosy stemischen Encephalopathie hat, wird erstmals experimentell eine Senkung der Operationsletalität dokumentiert, was den konsequenten klinischen Einsatz nahelegt.
    Notes: Summarry Following portocaval anastomosis a high lethality (87%) can be observed in a standardized micronodular liver cirrhosis model. By a special preoperative regimen this lethality can be reduced to 10%.
    Type of Medium: Electronic Resource
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