Læknablaðið - 15.12.1994, Síða 66

574
LÆKNABLAÐIÐ 1994; 80
Kirurgiska och Rattsmedicinska Inst., Lunds Uni-
versitet, Svíþjóð, Rannsóknastofa Háskólans í
meinafræði
The aim of the study was to document the early
development of suture holding capacity (SHC) of
end-to-end anastomoses in the Aorta and Inferior
Vena Cava (IVC) of the rat, by measuring their
resistance to tensile forces. Forty Aortic and 35 IVC
anastomoses were evaluated 0, 3, 5, 8,11 or 14 days
postoperatively. Thirty additional anastomoses
were histologically evaluated at the same times post-
operatively. The force needed to disrupt unoperated
control specimens of the Aorta was greater than that
needed for the IVC. The same was true of freshly
made anastomoses. However, from the 3rd to 14th
day, the venous anastomoses withstood higher
forces than anastomoses in the Aorta. The relative
breaking strain of the Aorta and IVC were similar
throughout the study, while the veins exhibited a
greater ultimate strain than did the Aorta. Moderate
to severe media ischaemia was found within all arte-
rial suture loops, the degenerative changes usually
extending through the total thickness of the vessel
wall. No such necrotic changes were observed in the
veins. Only slight to moderate foreign body reac-
tions were noted around sutures, equally in arteries
and veins. It is postulated that necrotic changes of
the vessel wall within the suture loops of arterial
anastomoses weakens the anastomoses by reducing
the walls suture holding capacity and may thus facil-
itate the development of anastomotic pseudoaneu-
rysms and possibly dehiscence.
56. Combined transurethral
microwave thermotherpy and
balloon dilation of the canine
prostate — Sonographic and
histologic assessment
Eiríkur Jónsson, Jack P. Hoopes, et al.
Dartmouth-Hitchcok Medical Center, Hanover,
NH, USA
Örbylgjumeðferð kemur að notum við meðferð
góðkynja stækkunar blöðruhálskirtils (BPH). Út-
víkkun (dilatation) á kirtlinum er gamalreynd aðferð
til að minnka prostatismus einkenni. Við sameinuð-
um þessar tvær aðferðir og meðhöndluðum í svæf-
ingu 14 karlhunda (canine!) sem síðan var fylgt eftir í
allt að þrjá mánuði. Ómun sýndi miklar holumynd-
anir í kirtlinum fyrst eftir meðferðina sem síðar voru
staðfestar sem vefjaskemmdir (necrosis) við meina-
fræðiskoðun. Þessi samtvinnun hita og þrýstings
framkallaði mun meiri vefjabreytingar en vænta
mátti af þrýstingnum eða hitanum einum sér. Ef
markmiðið er að fjarlægja prostata-vef (ablation) þá
gæti þessi samtvinnun verið árangursn'k við meðferð
góðkynja stækkunar blöðruhálskirtils hjá karlmönn-
um.
Höfundaskrá
Auður Smith..........
Árni Björnsson .......
Ásbjörn Jónsson ......
Bjarni A. Agnarsson ..
Bjarni Hannesson .....
Bjarni Torfason ......
Björn Magnússon ......
Björn Þ. Sigurbjörnsson
Björn Zoega..........
Brynjólfur Jónsson . ..
Brynjólfur Mogensen ..
Dahlstrand Ch ........
Einar Jónmundsson ...
Einar Oddsson........
Einfríður Árnadóttir ..
Eiríkur Jónsson.......
Elín Stefánsdóttir ....
................. 17
................... 4
..... 12, 15, 16, 39
........ 24, 47, 55
............... 16,39
.................. 37
.................. 42
............. 54, 55
.............. 15, 16
.......... 12, 13, 14
11, 12, 13, 14, 44, 45
.................. 27
.................. 43
.................. 46
.................. 40
............. 28, 56
.................. 32
Friðrik Kristján Guðbrandsson........ 53
Garðar Sigurðsson.................... 29
Gibbons RP .......................... 28
Grétar Ólafsson ................. 37, 42
Guðjón Birgisson ................ 18, 26
Guðjón Haraldsson ............... 34, 52
Guðjón Lárusson...................... 32
Guðmundur Bjarnason ............. 35, 49
Guðmundur Vikar Einarsson ........... 25
Guðmundur Geirsson .............. 26, 27
Guðmundur Már Stefánsson ............. 1
Gunnar H. Gunnlaugsson .............. 18
Gunnar Mýrdal ....................... 30
Hallberg E .......................... 54
Halldór Jóhannsson .................. 40
Haraldur Hauksson ................... 21
Helgi Isaksson ...................... 32