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  • 1
    ISSN: 1530-0358
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1530-0358
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1530-0358
    Keywords: Laparoscopy ; Laparoscopic colectomy ; Colectomy ; Colon resection ; Colon and rectal surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A multicenter retrospective study was undertaken to assess the efficacy and safety of laparoscopy in colon and rectal surgery. To minimize potential bias in interpretation of the results, all data were registered with an independent observer, who did not participate in any of the surgical procedures. Sixty-six patients underwent a laparoscopic procedure. Operations performed included sigmoid colectomy (19), right hemicolectomy (15), low anterior resection (6), colectomy with ileal pouch-anal anastomosis (IPAA) (5), and abdominoperineal resection (APR) (3). The conversion rate from laparoscopic colectomy to celiotomy was 41 percent. Major morbidity and mortality were 24 percent and 0 percent, respectively. Length of stay, hospital costs, and lymph node harvest were compared between the sigmoid resection and right hemicolectomy subgroups. Data from traditional sigmoid colectomies and right hemicolectomies were obtained from the same institutions for comparison. Mean postoperative stay for laparoscopically completed sigmoid and right colectomies was significantly less than that for either the converted or the traditional groups (P 〈0.02). Total hospital cost for traditional right hemicolectomy was significantly less than that for the converted group (P 〈 0.05) but not the laparoscopic group. Laparoscopic sigmoid resection showed no significant total hospital cost difference among traditional, converted, and laparoscopic groups. Lymph node harvest in resections for carcinoma was comparable in all groups. These preliminary data suggest that laparoscopic colon and rectal surgery can be accomplished with acceptable morbidity and mortality when performed by trained surgeons. Length of stay is shorter, but there is no proven total hospital cost benefit. Appropriate registries will be necessary to adequately assess long-term outcome.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Diseases of the colon & rectum 36 (1993), S. 1158-1160 
    ISSN: 1530-0358
    Keywords: Anal ultrasound ; Image enhancement ; Anal fistulas ; Hydrogen peroxide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Anal endosonography is a new technique that is useful in the preoperative assessment of patients with anal fistulas. Endosonographic images are created by the reflection of sound waves from the interfaces between tissues of varying densities. In order to accentuate tissue interface layers at the level of the fistula tract, we introduced hydrogen peroxide into the fistula tract through the external opening during anal ultrasonography in two patients with recurrent anal fistula. Hydrogen peroxide injection resulted in hyperechoic imaging of the preinjection hypoechoic horseshoe fistula tract. Endosonographic findings were confirmed at the time of surgery in both patients. We conclude that hydrogen peroxide enhancement of the fistula tract is a simple, effective, and safe method of improving the accuracy of endoanal ultrasound assessment of recurrent anal fistula.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    International journal of colorectal disease 9 (1994), S. 92-95 
    ISSN: 1432-1262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La vectographie de la pression anale est une méthode d'étude très attractive qui fournit des images vidéo en couleurs de trois dimensions permenttant de mettre en évidence des asymétries radiales. La valeur d'un tel test est toutefois incertaine. Le but de cette étude est de déterminer prospectivement la corrélation entre la vectographie et d'autres techniques d'investigations physiologiques anorectales telles la manométrie, l'électromyographie sphinctérienne et l'ultrasonographie. Cinquante patients consécutifs avec incontinence fécale ont été évalués. Les cinquante patients ont subi au cours d'une même séance une vectographie et une manométrie anale. La vectographie a mis en évidence une pression maximale moyenne de repos et une pression maximale moyenne de contraction de 83,1±28,4 mmHg et 106,3±34,5 mmHg. La manométrie anale a montré une pression maximale moyenne de repos et une pression 57,7±29,4 mmHg. Les différences mesurées entre vectographie et manométrie sont statistiquement significatives à la fois pour la pression moyenne de repos et pour la pression moyenne maximale de contraction (P〈0,05). Trente quatre des 50 patients (68%) présentent des défects globaux des sphincters sur les sections transverses du vectogramme. Quarante six patients ont également subi une cartographie électromyographique; 38 présentent une diminution d'activité à l'EMG dans un seul quadrant. Seuls 5 des 38 patients (13,2%) présentent un défect de même localisation à la vectographie. Finalement 33 patients ont subi une ultrasonographie; 27 sont porteurs de défects sphinctériens. Seuls 3 des 27 patients (11,1%) ont un défect de même siège que celui identifié à la vectographie. En conclusion, la vectographie n'a qu'une faible corrélation avec les autres techniques d'investigations physiologiques ano-rectales incluant la manométrie, l'électromyographie sphinctérienne et l'ultrasonographie. La vectographie n'a aucum avantage apparent et son emploi ne doit pas être recommandé.
    Notes: Abstract Anal pressure vectography is an attractive study which can provide colourful 3-dimensional video images to assess radial asymmetry. However, the value of this test is still uncertain. The aim of this study was to assess prospectively the correlation among APV and other anorectal physiological tests, such as anal manometry, anal sphincter electromyography (EMG), and anal ultrasonography. Fifty consecutive patients with faecal incontinence were evaluated. All 50 patients had APV and anal manometry during the same visit. APV revealed mean maximal resting and mean maximal squeeze pressures of 83.1±28.4 mmHg and 106.3±34.5 mmHg, respectively. Anal manometry showed mean maximal resting and mean maximal squeeze pressures of 55.9±19.4 mmHg and 57.7±29.4 mmHg, respectively. The difference between APV and manometry for both mean maximal resting and mean maximal squeeze pressures were significant (P〈0.05). Thirty-four of the 50 patients (68%) showed global defects of the sphincters on cross-sectional vectogram. Forty-six patients also had anal sphincter mapping with electromyography; 38 patients had isolated decreased EMG activity in a single quadrant. However, only five of the 38 patients (13.2%) had the same defect localized by APV. Lastly, 33 patients had anal ultrasonography; 27 patients had anal sphincter defects. However, only 3 of the 27 patients (11.1%) had the same defects localized by APV. In conclusion, APV had poor correlation with other anorectal physiological tests, including anal manometry, anal sphincter EMG, and anal ultrasonography. Therefore, APV has no apparent advantages, so its use cannot be supported.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    International journal of colorectal disease 9 (1994), S. 134-137 
    ISSN: 1432-1262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Des données préliminaires avaient suggéré que la chirurgie colique et rectale laparoscopique pouvait réduire la durée d'hospitalisation. Ces affirmations étaient attribuées à une réduction de la durée de l'iléus post-opératoire. La définition de l'iléus est variable et dans tous les cas subjective. Dans cette étude, l'iléus a été défini comme l'intervalle entre l'opération et le premier passage de gaz ou de selles sans nausées, vomissements ou distension abdominale. Cette étude prospective a été entreprise pour comparer la durée de l'iléus et de l'hospitalisation après chirurgie assistée par laparoscopie (LAC) et laparotomie standard (SC) pour réaliser une proctocolectomie avec réanastomose iléo-anale avec une poche iléale (IPAA). Vingt-deux patients ont subi une chirurgie assistée par laparoscopie et 20 une laparotomie: l'âge, le sexe et l'affection sous-jacente étaient comparables. Seize patients ont subi une chirurgie assistée par laparoscopie et 15 une laparotomie conventionnelle pour recto-colite ulcéro-hémorragique alors que 6 ont subi une chirurgie assistée par laparoscopie et 5 une laparotomie pour polypose. L'intervalle jusqu'à résolution de l'iléus post-opératoire était de 4,2 jours (4–11) dans le groupe opéré sous laparoscopie et 3,3 jours (2–5) dans le groupe ayant subi une laparotomie. La durée d'hospitalisation était similaire dans les deux groupes: 8,7 jours (7–13) lors de chirurgie assistée par laparoscopie et 8,9 jours (6–18) après laparotomie. Ni la durée de l'iléus ni la durée d'hospitalisation n'ont été réduites par l'introduction de la laparoscopie. La confection d'une anastomose iléoanale avec poche assistée par la laparoscopie n'entraîne auçun des avantages théoriques que l'on attribue à la laparoscopie.
    Notes: Abstract Previous data have suggested that laparoscopic colon and rectal surgery may shorten the length of hospitalization. These claims have been attributed to a reduction of the length of ileus. The definition of “ileus” is variable and in all cases is subjective. In this study it was defined as the length of time until the patient passed flatus or stool without nausea, vomiting or abdominal distention. This prospective study was undertaken to compare the duration of ileus and of hospitalization after laparoscopic-assisted (LAC) and standard laparotomy (SC). After restorative proctocolectomy with an ileal-pouch anal anastomosis (IPAA) in both sets of patients. Twenty-two patients underwent LAC and 20 age, sex, and diagnosis-matched controls underwent SC. Mucosal ulcerative colitis (MUC) was the diagnosis in 16 LAC and in 15 SC patients while polyposis was the diagnosis in 6 LAC and in 5 SC patients. The mean time to resolution of postoperative ileus was 4.2 (4–11) days in the LAC group and 3.3 (2–5) days in the SC group. Hospital discharge was similar in each group occurring at a mean of 8.7 (7–13) days after LAC and 8.9 (6–18) days after SC. Neither the length of time for ileus resolution nor the length of hospitalization were reduced in the LAC group. Laparoscopic-assisted IPAA conferred none of the theoretical advantages associated with other laparoscopic procedures.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    International journal of colorectal disease 9 (1994), S. 169-173 
    ISSN: 1432-1262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Des publications récentes ont suggéré que l'examen microscopique de tissu prélevé dans des ulcères anaux chez des patients atteints de SIDA n'était pas une méthode sûre de diagnostic de l'infection virale. Cette étude a été entreprise pour déterminer si les cultures virales (VC) ou les examens immuno-histochimiques (IHC) peuvent améliorer la sécurité du diagnostic en comparaison avec les colorations usuelles à l'hématoxyline et éosine (H&E). Spécifiquement, nous souhaitions identifier des inclusions virales de cytomégalovirus (CMV) ou d'herpès symplex (HSV) pour assurer un diagnostic d'infection à CMV ou HSV. Tous les patients étaient porteurs d'ulcères anaux cliniquement manifestes ou de fissures anales non cicatrisées. La durée des symtômes variait d'une semaine à trois mois avec une moyenne de six semaines. Tous les prélèvements ont fait l'objet de culture virale en complément à la coloration habituelle à l'hématoxyline éosine; des examens immuno-histo-chimiques ont également été réalisés. Vingt-cinq biopsies d'ulcère anal enrobées dans de la paraffine prélevées chez 23 patients mâles (ägés de 27 à 73 ans avec une moyenne de 37,4 ans) atteints de SIDA ou de ARC ont été revus sur une période de 4 ans (1988–1992). L'examen histologique avec coloration à l'hématoxyline éosine a montré chez 6 malades (22%) des inclusions à CMV. Quatre de ces 6 patients ont réagi positivement à un dosage immuno-histochimique (67%) et un s'est révélé positif à la culture virale (17%). Dans les 19 specimens restants qui n'ont pas révélé d'infection à CMV (78%), l'immuno-histo-chimie a été positive chez deux patients (10%) et la culture virale était positive chez un patient (5%). Bien qu'une infection à HSV n'ait pas été mise en évidence dans les prélèvements colorés à l'hemotoxyline éosine, l'immuno-histo-chimie s'est révélée positive chez un malade (3,5%) et la culture virale s'est révélée positive chez 8 patients (29%). L'immuno-histo-chimie constitue donc un bon test de confirmation d'inclusion à CMV et peut être utilisée pour assurer un diagnostic définitif dans des cas douteux. Cependant, ni la culture virale ni l'immuno-histo-chimie ne peuvent remplacer le pathologue soigneux au cours de la recherche d'inclusion virale.
    Notes: Abstract Recent reports have suggested that routine microscopic evaluation of anal ulcer tissue from AIDS patients is not the most accurate way to diagnose viral infection. This study was undertaken to determine if either viral culture (VC) or immunohistochemistry (IHC) can improve the diagnostic accuracy as compared with routine hematoxylin and eosin (H&E) staining. Specifically, we sought to identify inclusion bodies of cytomegalovirus (CMV) or herpes simplex virus (HSV) to assist in the diagnosis of CMV or HSV. All patients had clinical evidence of an anal ulcer or a nonhealing anal fissure. Duration of symptoms ranged from 1 week to 3 months with a mean of 6 weeks. All specimens were submitted for viral culture in addition to routine H&E staining; immunohistochemistry was also performed. Twenty-five paraffin-embedded anal ulcer biopsies from 23 male patients (age range 27–73; mean 37.4 years) with the diagnosis of AIDS or AIDS-related complex (ARC) were reviewed over a 4 year period (1988–1992). Routine H&E staining revealed 6 (22%) specimens with CMV inclusions. Four of these 6 reacted positively with IHC (67%) and one was positive on viral culture (17%). In the remaining 19 specimens that did not reveal infection with CMV (78%), IHC was positive in 2 patients (10%) and viral culture was positive in 1 patient (5%). Although HSV was not seen in any of the specimens on H&E staining, IHC was positive in one patient (3.5%) and viral culture reacted positively in 8 (29%) specimens. Thus IHC is a good confirmatory test for CMV inclusions and can be used to achieve a definitive diagnosis in equivocal cases. However, neither viral culture nor IHC can replace the traditional careful pathologist in the detection of viral inclusions.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 8 (1994), S. 130-134 
    ISSN: 1432-2218
    Keywords: Laparotomy ; Laparoscopy ; Colectomy ; Anastomosis ; Colorectal surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Laparoscopic colon and rectal surgery is still in its nascent stages of development. The ease, efficacy, and safety of intracorporeal mechanical colonic anastomosis are contingent upon expensive stapling devices. Although mobilization and mesenteric division are feasible, a method of inexpensive rapid anastomosis is not. A single inexpensive multifire stapler which could be used both to fashion the anastomosis and to close the mesenteric defect would be ideal. Therefore, this prospective randomized study was undertaken to compare the clinical and functional results of laparoscopic colotomy closure performed using the Endopath EMS hernia stapler (EMS; Ethicon Endosurgery Inc., Cincinnati, OH) to results of using standard two-layer hand suturing (HS). Both the colotomy itself and the mesenteric defect closure sites were included in the randomization and analysis. The abdominal cavity was assessed for evidence of anastomotic leakage, abscess, and adhesion formation. In addition, radiographic luminal diameter, bursting strength, and histology were evaluated. Eight healthy pigs were randomized to either the EMS (N=4) or HS (N=4). There was no evidence of leakage, abscesses, or adhesion formation in either group; however, the mesenteric defect revealed more scarring in the HS than in the EMS animals. There were no significant differences in either luminal diameter (HS: mean=0.92 cm; EMS: mean=0.91 cm) or bursting strength (HS: mean=171 mm Hg; EMS: mean=157 mm Hg) (P〉0.05). Histologic analysis also demonstrated no difference in inflammation, necrosis, or fibrosis. This study suggests that this technique can be safely applied to both colotomy closure and mesenteric defect repair. Clinical, histopathologic, and functional results after EMS closure are comparable to standard (HS) closure. Reproduction of this inexpensive means of safe, cost-effective, intracorporeal anastomosis and mesenteric closure should be pursued in human clinical trials.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 8 (1994), S. 1352-1353 
    ISSN: 1432-2218
    Keywords: Laparoscopy ; Colectomy ; Colonoscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract One of the technical difficulties during laparoscopic and laparoscopic-assisted resection of the right, transverse, and left colon is the mobilization of the splenic and hepatic flexures. We present a simple technique of colonoscopic traction of the splenic or hepatic flexure. This technique enables good exposure and facilitates dissection while laparoscopic mobilization of these segments of the colon is performed.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 7 (1993), S. 150-151 
    ISSN: 1432-2218
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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