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  • 1
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 111 (1999), S. 5905-5908 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The infrared absorption spectrum of the ν3 (B–Br stretching) mode of HBBr+ has been observed using a tunable diode laser and velocity modulation spectroscopy. The ion was formed in an ac glow discharge through a flowing mixture of H2 and BBr3. Thirty-three transitions of H11B79Br+ and the same number of lines of the H11B81Br+ isotopomer have been assigned. The band origins and rotational constants are H11B79Br+: ν0=937.5696(13) cm−1, B0=0.461 822(42) cm−1, and B1=0.459 254(41) cm−1. H11B81Br+: ν0=936.0554(11) cm−1, B0=0.460 330(45) cm−1, and B1=0.457 778(43) cm−1. Ab initio calculations of the band origins and the internuclear distances have been performed using the GAUSSIAN 94 package. The calculated values are in highly satisfactory agreement with the experimental results. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Hernia 1 (1997), S. 41-44 
    ISSN: 1248-9204
    Keywords: Hiatal hernia ; Surgery ; Laparoscopy ; Fundoplication
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The authors report their experience of laparoscopic repair of large paraoesophageal hernias (POH). From February 1994 to January 1997, nine patients with a large POH containing at least 50% of the stomach have been treated laparoscopically. The surgical procedure included reduction of the herniated stomach, closure of the hiatal orifice, and construction of a circular fundoplication. There was no conversion into open surgery. One case of postoperative atelectasis was seen (morbidity: 12.5%). Postoperative X-Ray demonstrated the restoration of a normal anatomical arrangements as well as an effective anti-reflux fundoplication. Laparoscopy makes it possible to safely and efficiently repair large POHs with an acceptable morbidity. However, this type of operation requires a good training in laparoscopic surgery.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    World journal of surgery 16 (1992), S. 1074-1082 
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Née dans la plus grande discrétion en 1987, développée dans une atmosphère de scepticisme, voire d'hostilité, la cholécystectomie coelioscopique (CC) a triomphé dans les années 1989/90 et a été responsable d'une véritable révolution en chirurgie générale. Les 700 cas consécutifs rapportés ici reflètent bien l'esprit de ces différentes périodes. Partant d'une indication limitée par prudence, nous avons élargi nos indications pour inclure aujourd'hui 90% de nos cholécystectomies pour lithiase. La vésicule scléro-atrophique constitue encore un véritable challenge pour les manôeuvres endoscopiques. Seuls les chirurgiens les plus expérimentés doivent s'attaquer à ce type de pathologie. La mortalité (0.1%) et la morbidité (3%) sont tout à fait comparables voire meilleures que celles de certaines séries de cholécystectomie traditionelle. La qualité de la récupération est en rapport avec l'absence de douleur, la courte période d'hospitalisation, le retour à l'activité physique avec reprise rapide du travail et la préservation totale de la musculature abdominale pour les sportifs. Tous ces avantages sont malheureusêment perdus pour les 6% de patients pour lesquels une conversion en laparotomie traditionnelle est nécessaire au cours de l'acte coelioscopique. Les résultats des études multicentriques, menées dernièrement en France et en Belgique, comprenant 3708 cas, sont tout à fait semblables. La CC est en passe de devenir la technique de référence pour le traitement de la lithiâse vésiculaire. C'est un premier pas vers la chirurgie du 21ème siècle qui devrait avoir lieu entièrement à l'intérieur de l'enveloppe musculo-cutanée du corps humain laissée “intacte”.
    Abstract: Resumen Nacida silenciosamente en 1987, desarrollada en un atmósfera de escepticismo y de hostilidad hasta 1988, la colecistectomía laparoscópica vino a triunfar en 1988/90 y ha causado una verdadera revolución en el mundo de la cirugía general. Los 700 casos consecutivos que ahora informamos reflejan el espírtu de estos períodos. Partiendo de una posición de prudente restrición, nuestras indicaciones se han ampliado para incluir 90% de los casos de litiasis de la vesícula biliar. Las vesículas escleroatróficas constituyen el mayor desafío al manejo endoscópico, y este grupo de pacientes debe reservarse para los más expertos operadores. Las cifras de mortalidad (0.18%) y de complicaciones (3%) son comparables, o aún mejores, que las de la colecistectomía tradicional. La calidad de la recuperación es infinitamente superior: ausencia de dolor, hospitalización muy corta, retorno a la actividad normal dentro de los 10 primeros días, rápido retorno al trabajo, preservación total de la musculatura abdominal para personas que hacen deporte. Todas estas ventajas, que son patrimonio de la colecistectomía laparoscópica, no son aprovechables por el 6% de los pacientes en quienes se hace necesaria la conversión intraoperatoria a cirugía abierta; estos pacientes se recuperan en las mismas condiciones que después de una colecistectomía tradicional, que de todas maneras no son codiciones pobres. Los grandes estudios multicéntricos como los recientemente realizados en Francia y Bélgica sobre 3708 casos, han llegado a las mismas conclusiones. La colecistectomía laparoscópica está en vía de convertirse en el estándar de oro, en el patrón oro, del tratamiento para la colelitiasis, y representa el primer paso exitoso hacía las técnicas quirúrgicas del siglo XXI, que habrán de ser ejecutadas en el interior de la envoltura no abierta del cuerpo humano.
    Notes: Abstract Born in secret in 1987, developed in an atmosphere of skepticism and even hostility throughout 1988, the laparoscopic cholecystectomy triumphed in 1989–90 and caused a veritable revolution in the world of general surgery. The 700 consecutive cases that we report here reflect the spirit of these various periods. From prudently restrictive, our indications widened to include 90% of all patients with gallbladder lithiasis. Sclero-atrophic gallbladders constitute the greatest challenge for endoscopic maneuvers. This group of patients should be treated by the most experienced operators only. The figures for mortality (0.1%) and complications (3%) are very comparable and even better than those for traditional cholecystectomy. The quality of recovery is infinitely better; there is absence of pain, a short period of hospitalization, return to normal physical activity within 10 days, rapid return to work, and total preservation of the abdominal muscles for participation in sports activities. All these advantages are assets of the laparoscopic cholecystectomy which are not available to the 6% of patients for whom an intra-operative conversion to open surgery is necessary. These patients recover within the conditions of a traditional cholecystectomy which are far from being poor. The large multicenter studies, such as those carried out in France and Belgium recently involving 3,708 patients, arrive at identical conclusions. The laparoscopic cholecystectomy is on its way to becoming the gold standard of treatment for gallbladder lithiasis. It is the first successful step towards surgical techniques of the 21st century which will be carried out inside the musculo-cutaneous envelope of the unopened human body.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 9 (1995), S. 1059-1064 
    ISSN: 1432-2218
    Keywords: Peritoneal defenses ; Laparoscopy ; Nissen fundoplication ; Immunologic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract There is a growing body of evidence that laparoscopic surgery is physiologically less injurious than open surgery. We hypothesized that the open technique results in a greater impairment of peritoneal and systemic defense mechanisms than does the laparoscopic technique. Nissen fundoplication, standardized in technique and duration, was performed in 16 pigs. The procedure was performed through a standard midline incision (OPEN, n=8) or with laparoscopic technique and CO2 pneumoperitoneum (LAP, n=8). The peritoneal cavity was instilled with 400 cc of normal saline, either alone (not contamined, n=8) or containing 109 E. coli/ml (contaminated, n=8). Quantitative cultures, cell count, and flow cytometry were performed on blood and peritoneal fluid samples obtained at timed intervals. We found that host defense processes were better preserved after LAP than by OPEN surgery. Peritoneal and systemic monocyte class II antigen expression, and serum tumor necrosis factor-alpha activity was greater in the OPEN group compared with the LAP group, but peritoneal bacterial clearance was more efficient in the LAP group. These data may illustrate a potential benefit of laparoscopic surgery in cases of peritoneal contamination.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 4 (1990), S. 1-5 
    ISSN: 1432-2218
    Keywords: Laparoscopic cholecystectomy ; Ultrasonic intracorporal lithotripsy ; Laparoscopic cholecystostomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The authors describe their own technique for the treatment of gallbladder stones using a laparoscopic approach. They first evacuate the stones with the aid of an intracorporal ultrasonic lithotriptor (Olympus, LTUS). Next they perform a cholecystostomy (17 cases) or a cholecystectomy (25 cases). The first 42 cases are reported, and the results have been good.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 6 (1992), S. 186-188 
    ISSN: 1432-2218
    Keywords: Laparoscopic cholecystectomy ; Laparoscopy ; Cholecystectomy ; Obesity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Between September 1990 and September 1991 laparoscopic cholecystectomy (LC) was performed in 310 patients with symptomatic cholelithiasis by using a four-cannula technique. Of this group, 282 were normal or overweight (group A) and 28 were obese (group B) according to classification using the Body Mass Index. Forty-one patients had cholecystitis of varying degree. There were no deaths in this series. The conversion rate to laparotomy was 2.9% and the morbidity was 5.4%. There was no statistical difference between groups A and B in relation to the length of procedure, conversion rate, or morbidity. This small series suggests that laparoscopic access is still feasible, if at times difficult, in obese patients. Specific surgical techniques concerning instrument length and cannula placement that may be useful in obese patients are described
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 7 (1993), S. 334-338 
    ISSN: 1432-2218
    Keywords: Gallstones ; Surgery ; Laparoscopic cholecystectomy ; Complications ; Conversions ; Results
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary During 1991, 41 surgeons of the French Society of Endoscopic Surgery and Operative Radiology (SFCERO) performed 3,673 cholecystectome of which 2,955 were laparoscopic. Data for those patients in whom a conversion to laparotomy was necessary or a complication occurred were collected by a retrospective multicenter survey. Conversion was performed in 142 patients (4.8%): in 106 this was due to pathology in the subhepatic space; in 36 it was because of a complication related to the laparoscopy. There were 101 postoperative complications (morbidity 3.4%): 59 biliary and 42 non biliary complications and six deaths (mortality 0.2%). There were 18 bile duct injuries, one of which led to the death of the patient. Excluding conversions to laparotomy, these figures are comparable to those for open cholecystectomy. These results define the limits and advantages of laparoscopic cholecytectomy. Conversion to laparotomy remains a wise option in cases of technical difficulty or doubtful biliary anatomy.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-2218
    Keywords: Key words: Consensus development conferences — Laparoscopic antireflux operations — Outcome assessment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Laparoscopic antireflux surgery is currently a growing field in endoscopic surgery. The purpose of the Consensus Development Conference was to summarize the state of the art of laparoscopic antireflux operations in June 1996. Methods: Thirteen internationally known experts in gastroesophageal reflux disease were contacted by the conference organization team and asked to participate in a Consensus Development Conference. Selection of the experts was based on clinical expertise, academic activity, community influence, and geographical location. According to the criteria for technology assessment, the experts had to weigh the current evidence on the basis of published results in the literature. A preconsensus document was prepared and distributed by the conference organization team. During the E.A.E.S. conference, a consensus document was prepared in three phases: closed discussion in the expert group, public discussion during the conference, and final closed discussion by the experts. Results: Consensus statements were achieved on various aspects of gastroesophageal reflux disease and current laparoscopic treatment with respect to indication for operation, technical details of laparoscopic procedures, failure of operative treatment, and complete postoperative follow-up evaluation. The strength of evidence in favor of laparoscopic antireflux procedures was based mainly on type II studies. A majority of the experts (6/10) concluded in an overall assessment that laparoscopic antireflux procedures were better than open procedures. Conclusions: Further detailed studies in the future with careful outcome assessment are necessary to underline the consensus that laparoscopic antireflux operations can be recommended.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 3 (1992), S. 382-386 
    ISSN: 1573-4838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: Abstract Artificial connective soft tissue, so-called “Elastin-Fibrin” biomaterial, was investigated to reinforce a pancreato-jejunum anastomosis in the dog. The ambiguous results invite us, however, to improve the quality of the material, especially against proteolytic degradation: elastinolysis and fibrinolysis. Antibiotic was also added. The improved material was tested, first in rabbit then in dog, to repair a large loss of substance in the duodenum, just in front of the Wirsung duct. In view of the successful results, we are now attempting an evaluation in humans, for all indications throughout the digestive system.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 11 (1997), S. 56 -63 
    ISSN: 1432-2218
    Keywords: Key words: Gallstones — Cholecystectomy — Surgery — Laparoscopy — Laparoscopic cholecystectomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: In 1996, laparoscopic cholecystectomy is the gold standard for symptomatic cholelithiasis. The results of this operation as published so far include data on the learning curve of the method. The aim of this study is to evaluate the results of laparoscopic cholecystectomy when performed by a large number of surgeons during the year 1994, not taking into account the beginning years in which the technique was being used. Methods: This study has been carried out prospectively and anonymously among members of SFCERO. All the patients who underwent a cholecystectomy started laparoscopically during 1994 have been included. Results: Some 4,624 cholecystectomies were performed by 150 surgeons. There were 3,310 females (42.5 ± 19.8 years old) and 1,314 males (56.3 ± 1.61 years old). The conversion rate was 6.9%: 320 operations had to be converted into laparotomy (group II) while 4,261 were performed entirely by laparoscopy (group I). Morbidity was 5% (N= 230)—4.7% in group I (N= 203) and 8.4% in group II (N= 27). Mortality was 0.2% (N= 9)—namely four intraabdominal complications (three cases of peritonitis and one biliary reoperation), two cardiac failures, and one brain infarction. The causes of death were not specified in two patients. Conclusions: These results show that morbidity and mortality have not changed dramatically since the beginnings of this technique, whereas the frequency of common bile duct (CBD) injuries has decreased. However, the conversion rate has increased slightly. These results make it possible to calculate the risk of conversion and postoperative complication according to the age of the patient and the biliary symptoms.
    Type of Medium: Electronic Resource
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