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  • 1
    ISSN: 1432-1084
    Keywords: Key words: Neoplasm ; Staging ; Laparoscopy ; Laparoscopic ultrasonography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. In recent years, laparoscopic ultrasonography has been introduced as an adjunct to diagnostic laparoscopy for staging of tumors of the upper gastrointestinal tract, liver, biliary tree, and pancreas. It has proved feasible to visualize most anatomic structures in the upper abdomen consistently and in detail with laparoscopic ultrasonography. Recent publications indicate that laparoscopic ultrasonography may be useful for detecting small liver metastases, lymph node metastases, small primary tumors of the pancreas and bile ducts, and for the assessment of the local extension of tumors of the pancreas and stomach. The ongoing improvements in US technology and the results of larger studies will in the near future determine the precise place of this new imaging modality for staging of abdominal tumors.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0509
    Keywords: Key words: Laparoscopy—Laparoscopic ultrasonography—Neoplasm staging—Technique.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Since 1992 diagnostic laparoscopy combined with laparoscopic ultrasonography has been performed in our center in more than 300 patients for staging of tumors of the liver, bile ducts, pancreas, esophagus, and gastric cardia. In this article our experience with laparoscopic ultrasonography for abdominal tumor staging is described, with particular attention for the technical aspects, imaging findings, limitations, and pitfalls.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0509
    Keywords: Key words: Biliary tract—Strictures—Surgical anastomosis—PTC procedures—Balloon dilatation—Interventional—Ultrasound guided.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Percutaneous balloon dilatation of biliary tract strictures is generally accepted as a safe and inexpensive procedure. The effectiveness in selected groups of patients remains under discussion. The purpose of this study was to evaluate the results of percutaneous balloon dilatation in patients with a benign stricture of a hepaticojejunostomy. Methods: Fifteen patients with a benign stricture of a hepaticojejunostomy were examined between 1993 and July 1997. An ultrasound-guided percutaneous transhepatic cholangiography (PTC) procedure was performed, followed by a balloon dilatation. Follow-up was performed prospectively by outpatient visits and laboratory testing. Results: Percutaneous dilatation was successful in 14 patients. Three patients developed a recurrence. In one of these patients, the procedure was repeated successfully. Gastrointestinal bleeding occurred in one patient. The success rate for balloon dilatation in this group of patients was 73% after a mean follow-up of 30 months. When the procedure was repeated, the success rate was 80% after a mean follow-up of 33 months. Conclusions: Percutaneous balloon dilatation for benign hepaticojejunostomy strictures is feasible in the majority of patients and produces acceptable medium-term to long-term results. Advantages are its minimal invasive character and the fact that all options remain open in case of failure.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-2218
    Keywords: Key words: Inflammatory bowel disease — Colitis — Laparoscopic surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Inflammatory bowel disease (IBD) can be complicated by severe acute colitis. Emergency colectomy is mandatory if patients do not respond to intensive medical therapy. A minimally invasive approach such as laparoscopic-assisted colectomy might be beneficial in these patients. Therefore, we set out to assess the feasibility and the safety of emergency laparoscopic-assisted colectomy in IBD patients with severe acute colitis. Methods: A total of 42 consecutive patients underwent an emergency colectomy with end-ileostomy. Ten patients had laparoscopic-assisted colectomy, and 32 had open colectomy. Pre- and perioperative parameters, morbidity, and mortality were analyzed. Results: The two groups were comparable for patient characteristics. There were no conversions in the laparoscopic group. The operation time was longer in the laparoscopic group than in the open group (271 vs 150 min; p 〈 0.001), but the hospital stay was shorter (14.6 vs 18.0 days; p= 0.05). Complications were similar for the two groups. Conclusion: Laparoscopic-assisted colectomy in IBD patients with severe acute colitis is feasible and as safe as open colectomy.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 14 (2000), S. 721 -725 
    ISSN: 1432-2218
    Keywords: Key words: Laparoscopy — Ileocolic resection — Crohn's disease — Distal ileum — Small bowel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: The objective of this study was to compare laparoscopic-assisted ileocolic resection for Crohn's disease of the distal ileum with open surgery in two consecutive groups of patients. Methods: From 1995 until 1998, 48 patients underwent open ileocolic resection at the Academic Medical Center (AMC) in Amsterdam, while 30 patients had laparoscopic-assisted ileocolic resection at the Leiden University Medical Center (LUMC). Patient characteristics, perioperative course, and recovery were compared. Differences between the groups were tested using Student's t-test for independent groups and chi-square tests when appropriate. Results: The open and the laparoscopic patient groups were comparable for age, gender, body mass index (BMI), prior abdominal surgery, and length of resected bowel. The conversion rate was 6.6%. Laparoscopic operating times (138 ± SD 36 min) were significantly longer than those observed in the open group (104 ± SD 34 min). Discharge was significantly earlier in the laparoscopic group than the open group (5.7 vs 10.2 postoperative days, p 〈 0.007). Postoperative morbidity did not differ significantly between the patients treated traditionally (14.6%) and laparoscopically (10%). Conclusion: Compared to open surgery, laparoscopic ileocolic resection for Crohn's disease is associated with similar morbidity rates, a shorter hospital stay, and improved cosmetic results, justifying the laparoscopic approach as the procedure of choice.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 9 (1995), S. 37-41 
    ISSN: 1432-2218
    Keywords: Laparoscopic cholecystectomy ; ESWL ; Conventional cholecystectomy ; Cost-effectiveness ; Gallstone disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In order to strike the most favorable balance between health benefits and costs, three treatment modalities for symptomatic cholelithiasis were compared in a cost-effectiveness study: extracorporeal shockwave lithotripsy (ESWL), conventional cholecystectomy (CC), and laparoscopic cholecystectomy (LC). Data were analyzed from 55 patients who were treated by ESWL, 45 patients who had CC, and 47 patients who had LC. The study was performed by analysis of patients charts and a written questionnaire. After ESWL 35% of the patients were free of stones, 23% had fragments⩽5mm, and 42% had fragments〉5 mm at 1-year follow-up. Persistent complaints were reported by 59% after ESWL, 11% after CC, and 14% after LC (P〈0.001). New complaints arose in 12% after ESWL, 11% after CC, and in 5% after LC (P=NS). Patient appreciation score was highest for LC and lowest for ESWL. Mean hospital stay was 2.4 days for ESWL, 10 days for CC, and 3.5 days for LC. Overall costs of treatment were: $5,066 for ESWL; $5,893 for CC; and $3,117 for LC. This study reveals that laparoscopic cholecystectomy is the most effective treatment of the large majority of patients with symptomatic cholelithiasis. ESWL should only be considered in the case of a solitary, relatively small, completely radiolucent stone.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 9 (1995), S. 998-1000 
    ISSN: 1432-2218
    Keywords: Double or bilobar gallbladder ; Laparoscopic cholecystectomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A double or bilobar gallbladder is a rare congenital anomaly. If not recognized during preoperative evaluation or operation, it can cause severe complications. We describe two cases in which a second operation had to be performed because of the presence of a second or bilobar gallbladder that was not recognized in the preoperative evaluation and during (laparoscopic) cholecystectomy. The types of anomalies, the concomitant pathology, and treatment are discussed.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 13 (1999), S. 869-873 
    ISSN: 1432-2218
    Keywords: Key words: Dissectors — Feedback quality — Laparoscopy — Psychophysics — Sensitivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Sensory feedback is reduced considerably in minimally invasive procedures by the interposition of instruments, causing loss of direct manual contact with the tissue. The purpose of this study was to evaluate the feedback quality of commercially available reusable and disposable laparoscopic dissectors. Methods: A total of 31 participants were asked to feel a simulated arterial pulse with their bare fingers and through laparoscopic dissectors, tweezers, an orthopedic forceps, and a laparoscopic low-friction prototype. The absolute sensory threshold was determined by the psychophysical method of limits. Results: The sensory feedback quality was significantly better for the reusable dissectors tested than for the disposable dissector (p 〈 0.001). Nevertheless, the reusable dissectors were at least eight times less sensitive than bare fingers. Furthermore, sensitivity qualities were highly variable, depending on the dissector tested. Conclusions: This study showed that the overall sensitivity loss through instruments could be accurately assessed, proving that the sensory feedback for commercially available instruments was low compared to bare fingers. The good sensory feedback results of the prototype indicated that careful design could decrease the overall sensitivity loss.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 14 (2000), S. 938 -941 
    ISSN: 1432-2218
    Keywords: Key words: Appendectomy — Appendicitis — Diagnosis — Laparoscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Diagnostic laparoscopy has been introduced as a new diagnostic tool for patients with acute appendicitis. We performed diagnostic laparoscopy when the clinical diagnosis of appendicitis was in doubt. The aims of this study were to evaluate this strategy and to analyze the efficacy of diagnostic laparoscopy in patients with suspected appendicitis. Patients and Methods: All patients referred to our hospital with suspected appendicitis during the period 1994–1997 were evaluated prospectively. The clinical diagnosis was determined by the surgeon or resident on call based on the patient's history, physical examination, and leukocyte count. The patients were divided into three groups: group 1: appendicitis not likely. These patients were observed for 24 h or discharged. When they showed signs of appendicitis in 24 h, they were transferred to either group 2 or 3; group 2: doubt concerning diagnosis. These patients underwent diagnostic laparoscopy, and appendectomy was performed if indicated; group 3: In these patients the diagnosis appendicitis was felt to be certain. They were treated by primary appendectomy by an open procedure. In this study, 1,050 patients, 531 women (51%), 389 men (37%), and 130 children (12%) 〈11 yrs, were evaluated. Results: Altogether, 377 diagnostic laparoscopies were performed, leaving 109 healthy-looking appendices in place. This reduced the negative appendectomy rate from 25% to 14% in all surgically managed patients. The negative appendectomy rate for the women in group 2 was reduced from 49% to 14%, and for the men from 22% to 11%, so it also seemed worthwhile to perform diagnostic laparoscopy in men. Because the appendix sana was left in place in only three children, the benefit from laparoscopy is relatively small for children. In 48% of these patients a second diagnosis was obtained, most of them gynecologic in nature. There were no false-negative laparoscopies and no complications resulting from the laparoscopic procedure. Conclusions: Diagnostic laparoscopy is a safe procedure that reduced the appendix sana rate without increasing the total number of operations. It is a useful method for obtaining other, mostly gynecologic, diagnoses. To further reduce the appendix sana rate, better criteria for laparoscopic assessment of the appendix are needed.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 14 (2000), S. 997 -998 
    ISSN: 1432-2218
    Keywords: Key words: Hand port—Laparoscopic splenectomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Laparoscopic splenectomy is performed routinely in patients with small and moderately enlarged spleens at specialized centers. Large spleens are difficult to handle laparoscopically and hand-assisted laparoscopic splenectomy might facilitate the procedure through enhanced vascular control, easier retraction and manipulation, manual guidance of endostaplers, and clip appliers. A technique of hand-assisted laparoscopic splenectomy is described.
    Type of Medium: Electronic Resource
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