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The effect of blood around a flap pedicle on flap perfusion in an experimental rodent model

Petr Hýža, Jiří Veselý, Daniel Schwarz, Anna Vašků, Umar Choudry, Libor Streit, G. Bistoni, Andrej Sukop

. 2009 ; 51 (1) : 21-25.

Jazyk angličtina Země Česko

Perzistentní odkaz   https://www.medvik.cz/link/bmc07529835

Grantová podpora
NR8368 MZ0 CEP - Centrální evidence projektů

The vasospasm has been studied to a considerable extent in the neurosurgical literature. Little experimental and basic scientific literature about vasospasm of flap pedicle is available in the field of reconstructive microsurgery. The purpose of the study was to investigate the effect of presence of blood around the pedicle on a flap perfusion. MATERIAL AND METHODS: Blood flow through a right groin flap was continuously measured using Laser Doppler flowmetry on 40 male Wistar rats. A segment of the flap's pedicle was surgically cleared of adventitia and bathed in blood. The blood used was either collected from the tail of the rat (group A) or from the bleeding branch of the pedicle itself (group B). The differences between the signal amplitudes before and after exposure of the pedicle to blood were recorded. RESULTS: The presence of blood around the pedicle resulted in a significant decrease in perfusion of the flap in both groups. However, no significant differences in the duration of impaired blood flow between the groups were observed. CONCLUSIONS: In conclusion, the presence of blood around the vascular pedicle may cause a significant decrease in the perfusion of a flap, while the origin of the blood does not appear to be an important factor.

Bibliografie atd.

Lit.: 19

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$a Hýža, Petr $7 xx0096899 $u Department of Plastic and Aesthetic Surgery, Masaryk University, Brno
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$a The vasospasm has been studied to a considerable extent in the neurosurgical literature. Little experimental and basic scientific literature about vasospasm of flap pedicle is available in the field of reconstructive microsurgery. The purpose of the study was to investigate the effect of presence of blood around the pedicle on a flap perfusion. MATERIAL AND METHODS: Blood flow through a right groin flap was continuously measured using Laser Doppler flowmetry on 40 male Wistar rats. A segment of the flap's pedicle was surgically cleared of adventitia and bathed in blood. The blood used was either collected from the tail of the rat (group A) or from the bleeding branch of the pedicle itself (group B). The differences between the signal amplitudes before and after exposure of the pedicle to blood were recorded. RESULTS: The presence of blood around the pedicle resulted in a significant decrease in perfusion of the flap in both groups. However, no significant differences in the duration of impaired blood flow between the groups were observed. CONCLUSIONS: In conclusion, the presence of blood around the vascular pedicle may cause a significant decrease in the perfusion of a flap, while the origin of the blood does not appear to be an important factor.
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$a Schwarz, Daniel, $d 1977- $7 ola2002146812 $u Institute of Biostatistics and Analyses, Masaryk University, Brno, Czech Republic
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$a Vašků, Anna, $d 1954- $7 mzk2006356130 $u Department of Pathological Physiology, Masaryk University, Brno, Czech Republic
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$a Choudry, Umar $u Depatment of Surgery, Division of Plastic Surgery, University of Minnesota, MN, USA
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$a Sukop, Andrej, $d 1968- $7 xx0098439 $u Department of Plastic Surgery, 3rd Faculty of Medicine, Charles University, Prague, Czech Republic
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