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Abstracts 4. Gemeinsamer Jahreskongress der ... - SWISS KNIFE

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swissknife spezial 06 12.06.2006 13:39 Uhr Seite 34<br />

16.14<br />

R. Marti1 , I. Schwegler2 , T. Obeid3 , L. Gürke4 , P. Stierli5 1 2 Chirurgische Klinik, Kantonsspital Aarau AG, 5001 Aarau/CH, Gefässchirurgie, Kantonsspital<br />

Aarau, 5000 Aarau/CH, 3Gefässchirurgie, Kantonsspital, 5001 Aarau/CH, 4Gefäss chirurgie, Universitätsspital Basel, Basel/CH, 5Gefässchirurgie, Kantonsspital Aarau,<br />

Aarau/CH<br />

Patchinfekt nach Carotis-TEA. Eine seltene Komplikation. Ein Fall mit fatalen Folgen<br />

Objective: Einleitung: Anhand einer Fallbeschreibung wird die seltene Komplikation des<br />

Patchinfektes nach Carotis-TEA diskutiert.<br />

Methods: Fallbeschreibung<br />

Results: Fallbericht: 3 Jahre nach einer Carotis-TEA mit Dacronpatch-Verschluss tritt bei einer<br />

50-jährigen Patientin ein Eiteraustritt über die Narbe auf. Bei Verdacht auf einen Patchinfekt<br />

erfolgt die Rekonstruktion <strong>der</strong> Bifurkation mittels Veneninterponat. In sämtlichen entnommenen<br />

Proben ist kein Bakterienwachstum nachweisbar. In <strong>der</strong> Folge antibiotische Therapie mit<br />

Ciprofloxacin. 2 Monate später erneute Sekretion aus <strong>der</strong> Narbe. Im Duplex Nachweis eines<br />

Flüssigkeitssaum um das Interponat. Es erfolgt eine antibiotische Therapie mit Vancomycin<br />

für 2 Wochen und Zyvoxid für weitere 4 Wochen. Nach Abschluss <strong>der</strong> Therapie Persistenz <strong>der</strong><br />

ödematösen Verquellung des U mgebungsgewebe und hochgradige Stenose des<br />

Interponates (Duplex/MRI). Rehospitalisation nach einem weiteren Monat mit Kreislaufschock<br />

bei anämisieren<strong>der</strong> GI-Blutung unter OAK. Bei Eintritt Hyposensibilität <strong>der</strong> rechten<br />

Gesichtshälfte. Im Duplex nach Revertierung <strong>der</strong> OAK Nachweis eines thrombotischen<br />

Verschlusses <strong>der</strong> Carotisgabel. Im CT Mediainfarkt. Bei progredientem Hirnödem erfolgte die<br />

Kraniotomie. Die Patientin konnte nach 3 Wochen mit einer Hemiparese links in die Rehab entlassen<br />

werden. Bei erneutem Verdacht auf einen low-grade Infekt Therapieversuch mit<br />

Vancomycin. Bei Ausbleiben einer Besserung <strong>der</strong> Infektwerte Beginn mit einer Steroidtherapie<br />

bei Verdacht auf eine Vasculitis. Unter einer Dosierung mit 50 mg Prednison deutliche<br />

Besserung des Befundes.<br />

Conclusion: Schlussfolgerung:. Der Patchinfekt ist eine seltene Komplikation nach Carotis-<br />

TEA. In <strong>der</strong> Literatur wird die Inzidenz mit unter 1% beschrieben. Das therapeutische Konzept<br />

umfasst das lokale Debridement mit Excision des infizierten Arteriensegmentes und Ersatz<br />

mittels Veneninterponat begleitet von einer Langzeitantibiotikatherapie.<br />

16.15<br />

P.A. Stal<strong>der</strong>1 , J.C. van den Berg2 , R. Rosso3 1 2 Vascular Surgery, Ospedale Regionale Lugano, 6900 Lugano/CH, Radiology, Ospedale<br />

Regionale Lugano, Lugano/CH, 3Vascular Surgery, Ospedale Regionale Lugano, Lugano/CH<br />

Endovascular treatment of isolated common iliac artery aneurysm using a bifurcated stentgraft:<br />

a potential pitfall<br />

Objective: Endovascular repair of isolated common iliac artery (CIA) aneurysm is feasible<br />

when specific anatomical criteria are met. We describe a potential pitfall of endovascular iliac<br />

artery aneurysm repair.<br />

Methods: A 78-year old man was referred with an incidental finding of a right 9.7cm CIA aneurysm<br />

and a mild dilatation of the abdominal aorta. As the aneurysm had no proximal neck, it<br />

was decided to treat the patient with a bifurcated stent. The aneurysm extended to the right<br />

iliac bifurcation, which necessitated an embolization of the ipsilateral internal iliac artery.<br />

Afterwards the main body of a bifurcated stent was inserted and deployed. After ipsilateral<br />

iliac extension canulation of the contralateral stump was attempted. The gate of the contralateral<br />

limb was at the level of a focal narrowing of the abdominal aorta, not fully deployed.<br />

Canulation from a left contralateral approach was impossible. With a cross-over technique a<br />

guidewire was passed into the left iliac artery. The contralateral limb was inserted, but could<br />

not pass beyond the local narrowing of the distal aorta. Kissing balloon-angioplasty of the<br />

aorta was performed. After this the procedure was uneventful.<br />

Results: Endovascualr treatment of isolated CIA aneurysms is feasible. Various approaches<br />

can be employed, ranging from the use of covered stents placed percutaneously, to the use<br />

of iliac extensions or modular stents. Covered stents and iliac extensions from modular stent<br />

systems can only be used in cases with sufficient proximal and distal neck. In the absence of<br />

a proximal neck, the stent has to be extended into the distal abdominal aorta. When using a<br />

bifurcated stent the absence of a large diameter distal abdominal aorta may cause a failure<br />

of deployment of the contralateral limb to its full diameter, thus hampering the canulation of<br />

the stump. When planning an endovascular procedure, this potential pitfall must be taken into<br />

account. When canulation of the contralateral leg is impossible, endovascular conversion into<br />

an aorto-uni-iliac stent should be consi<strong>der</strong>ed as a bailout procedure, prior to conversion to<br />

open surgery.<br />

Conclusion: Endovascular treatment of an isolated CIA aneurysm using a bifurcated stent<br />

system is feasible. A potential pitfall exists if the distal abdominal aorta is not dilated.<br />

16.16<br />

B.K. Wölnerhanssen 1 , A.L. Jacob 2 , T. Wolff 3 , L. Gürke 4 , T. Eugster 5<br />

1 Surgery, University Hospital Basel, 4056 Basel/CH, 2 Interventional Radiology, University<br />

Hospital Basel, 4056 Basel/CH, 3 Vascular Surgery, University Hospital Basel, Basel/CH,<br />

4 Gefässchirurgie, Universitätsspital Basel, Basel/CH, 5 Gefässchirurgie, Universitätsspital<br />

Basel, 4031 Basel/CH<br />

Ruptured aneurysm of the pancreatico-duodenal artery<br />

Objective: Key words: pancreatico-duodenal artery aneurysm, aorto-hepatic bypass Case<br />

Report<br />

Methods: Case report<br />

Results: A 48-year-old female presented to a peripheral hospital with acute epigastric abdominal<br />

pain, nausea and non-bilious emesis. An abdominal ultrasound showed cholecystolithiasis<br />

and signs of appendicitis. The patient un<strong>der</strong>went laparoscopy. 400 ml of blood in abdomine<br />

as well as a pulsating tumour close to the mesenteric root were found. A ruptured aortic<br />

aneurysm was suspected, the intubated patient was transferred to our hospital. Computed<br />

tomography of the abdomen showed a hematoma in the transverse mesocolon and an aneurysm<br />

of the pancreatico-duodenal artery, but no signs of acute bleeding. No signs of pancreatitis<br />

or atherosclerosis were present. An angiography showed the ruptured aneurysm and an<br />

almost complete occlusion of the celiac trunk. Spleen and liver were supplied by retrograde<br />

blood flow from the gastroduodenal artery. An attempt to dilate the celiac trunk failed. The<br />

patient un<strong>der</strong>went laparatomy. An aorto-hepatic bypass was performed, the gastro-duodenal<br />

artery was clipped and a cholecystectomy was carried out. After surgery the patient additio-<br />

34 swiss knife 2006; special edition<br />

nally un<strong>der</strong>went endovascular coiling of the aneurysm. The postoperative course was unremarkable.<br />

No further aneurysms were found.The patient was discharged on the 13th postoperative<br />

day. Six weeks after surgery a duplex sonography showed good perfusion of the<br />

aorto-hepatic bypass. About 3 months after surgery occasional postprandial bloating and<br />

mo<strong>der</strong>ate pain from the scar were the only residues, CT-scan showed no perfusion of the<br />

aneurysm.<br />

Conclusion: Splanchnic aneurysms are infrequently encountered, peripancreatic artery aneurysms<br />

are highly unusual. Risk factors include a history of frequent pancreatitis episodes, and<br />

atherosclerosis. Absence of the celiac axis complicates treatment. Often the clinical presentation<br />

of a splanchnic aneurysm is dramatic. Yet, it is of importance to assess the patency of the<br />

celiac axis as well, to prevent infarction. Elective procedures include an open vascular<br />

approach and/or endovascular intervention. Associated aneurysms are common and ought<br />

to be excluded.<br />

16.17<br />

S.A. Bischofberger 1 , R. Kuster 2 , W. Nagel 2<br />

1 Klinik für Chirurgie, Kantonsspital St.Gallen, 9000 St.Gallen/CH, 2 Klinik für Chirurgie, Kantonsspital<br />

St.Gallen, St.Gallen/CH<br />

Interne Qualitätskontrolle Karotischirurgie 2002 bis 2005<br />

Objective: Seit 2002 werden am Kantonsspital St.Gallen Operationen an <strong>der</strong> Karotis immer in<br />

Intubationsnarkose und unter zerebraler Durchblutungskontrolle mittels intraoperativem SEP-<br />

Neuromonitoring (somatosensorisch evozierte Potentiale nach Medianusstimulation) durchgeführt.<br />

Wir erstellen seitdem jährlich einen Qualitätsbericht und vergleichen unsere Daten<br />

mit jenen <strong>der</strong> deutschen Gesellschaft für Gefässchirurgie DGG. Diese Daten erlauben<br />

Rückschlüsse auf die Qualität und ermöglichen Verbesserungsmassnahmen <strong>der</strong> operativen<br />

Versorgung. Nach dem Bericht 2004 wurde insbeson<strong>der</strong>e die Durchführung des intraoperativen<br />

Neuromonitorings sowie einer intraoperativen Kontrollangiografie bei allen Patienten<br />

gefor<strong>der</strong>t.<br />

Methods: Erfassung aller zwischen 2002 und 2005 an <strong>der</strong> Karotis operierten Patienten. Alle<br />

Patienten wurden präoperativ stadienunabhängig mittels Duplexsonografie und MR-<br />

Angiografie (selten CT-Angiografie) abgeklärt. Erfasst werden neben intraoperativen Daten<br />

zur Operationstechnik auch die postoperativen Komplikationen.<br />

Results: Zwischen 2002 und 2005 wurden 376 Patienten (2005: 107 Patienten) an einer<br />

Karotisstenose operiert. Operationstechnik: Konventionelle-TEA 368/104, Eversions-TEA 8/3,<br />

Patchplastik 362/98, Interponate 5/1, passagere Shunteinlage 140/25, Neuromonitoring<br />

286/102, intraoperative Angiografie 91/3<strong>4.</strong> Komplikationen: 3/0 schwere und 8/1 leichte<br />

neurologisch-ischämische Defizite, davon 6/1 passager, 5/0 permanent.<br />

Hirnnervenläsionen 33/6, revisionsbedürftige Nachblutung 20/<strong>4.</strong><br />

Conclusion: Wie im Vorjahresbericht gefor<strong>der</strong>t, konnte das intraoperative Neuromonitoring in<br />

95% <strong>der</strong> Fälle (Vorjahr 72%) durchgeführt werden. Diese Steigerung war insbeson<strong>der</strong>e durch<br />

die Aufstockung <strong>der</strong> personellen Ressourcen möglich. Somit konnten wir uns unserem Ziel<br />

von 100% deutlich annähern. Im Vergleich zum Vorjahr erreichten wir darunter eine weitere<br />

Senkung <strong>der</strong> neurologisch-ischämischen Komplikationen auf 1% (Vorjahr 5%). Das Auftreten<br />

<strong>der</strong> postoperativen revisionsbedürftigen Nachblutungen 3.5% und Hirnnervenläsionen 5%<br />

blieb im Vergleich zum Vorjahr konstant. Eine intraoperative Kontrollangiografie erfolgte in<br />

32% (Vorjahr 51%).<br />

16.18<br />

C. Medugno 1 , P. Wigger 1 , R. Jenelten 2<br />

1 Vascular Surgery, Kantonsspital Winterthur, 8401 Winterthur/CH, 2 Angiologie, Kantonsspital,<br />

8401 Winterthur/CH<br />

Contained rupture of an infrarenal aortic aneurysm into the vertebral body<br />

Objective: Patients with a ruptured aortic aneurysm present usually with back-pain and signs<br />

of shock. Contained rupture of a true aortic aneurysm which presents as a false aneurysm<br />

sealed by the vertebral body is rareley seen and also classified as a chronic contained rupture.<br />

Methods: Case report: a 86-year-old man was admitted to the hospital with a several week<br />

history of lumbar back pain. There was marked progression of his pain in the last few days<br />

before admission so that the patient could hardly walk. Abdominal examination showed a<br />

pulsatile mass. The patient was haemodynamically stable. Laboratory findings showed an<br />

impaired renal function and an INR of 5.5. The patient was anticoagulated because of atrial<br />

fibrillation. A computed tomography revealed an 8cm abdominal aortic aneurysm and erosion<br />

of the adjacent L3 and L4 vertebrae.<br />

Results: The anticoagulation was reversed with concentrated coagulation factors<br />

(ProthromblexR) and the patient was operated on the day of admission. We decided to perform<br />

an open operation because of a marked kinking of the proximal neck. After opening the<br />

aneurysm there was a 2cm-circular defect of the back-wall of the aneurysm-sac with thrombus<br />

in the cavity of the eroded vertebral bodies representing a chronic sealed rupture into the<br />

vetebral body or a pseudoaneurysm. The aneurysm was repaired with a PTFE tube-graft. The<br />

operation was uneventful and straight forward. The postoperative course was complicated by<br />

pulmonary problems due to a known paresis of the right recurrent laryngeal nerve and swolling<br />

problems as a result of a former cerebrovascular event.<br />

Conclusion: Erosion of the vetebral body through pressure caused by the pulsating aneurysm<br />

sac is a rare but known manifestation of an aneurysm. A chronic contained rupture of an<br />

aneurysm into such an erosion representing a pseudoaneurysm of the aneurysms is even<br />

more rarely seen.<br />

17<br />

17.01<br />

C. Tiffon 1 , E. Angst 2 , M. Rizzi 3 , S. Sibold 2 , D. Candinas 4 , D. Stroka 2<br />

1 Department of Visceral and Transplantation Surgery, Department of Clinical Research, 3010<br />

Bern/CH, 2 Department of Visceral and Transplantation Surgery, DCR, 3010 Bern/CH,<br />

3 Haematology, Oncology, DCR, 3010 Bern/CH, 4 Department of Visceral and Transplantation<br />

Surgery, University of Bern, 3010 Bern/CH<br />

The role of the cellular differentiation on the hypoxia-induced expression of NDRG1<br />

Objective: N-myc downstream regulated gene 1 (NDRG1) is a 43kDa protein that is up-regu

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