Effect of radial artery harvesting on tissue perfusion and function of the hand

Sádaba, Rafael; Conroy, J.; Burniston, Maria; J, Maughan; Munsch, Christopher

doi:10.1016/s0967-2109(00)00148-4

Cited by 23 publications

(1 citation statement)

References 22 publications

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“…There are several clinical circumstances that require the assessment of the vasculature status of peripheral limbs, specifically the forearm. These assessments provide diagnostic information on (1) the progression of peripheral vasculature disease which acts as a surrogate marker for cardiovascular health (Katz et al 2005, Perticone et al 2001, (2) the health of the peripheral limb prior to and following bypass surgery (Sadaba et al 2001, Verma et al 2004 and (3) the health of peripheral vasculature in determining the need for an aggressive clinical response through surgical revascularization or amputation (Halperin 2002).…”

Section: Assessing Peripheral Vasculature Healthmentioning

confidence: 99%

Video rate electrical impedance tomography of vascular changes: preclinical development

Halter¹,

Hartov²,

Paulsen³

2008

Physiol. Meas.

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Peripheral vasculature disease is strongly correlated with cardiovascular-associated mortality. Monitoring circulation health, especially in the peripheral limbs, is vital to detecting clinically significant disease at a stage when it can still be addressed through medical intervention. Electrical impedance tomography (EIT) maps the electrical properties of tissues within the body and has been used to image dynamically varying physiology, including blood flow. Here, we suggest that peripheral vasculature health can be monitored with EIT by imaging the hemodynamics of peripheral vessels and the surrounding tissues during reactive hyperemia testing. An analysis based on distinguishability theory is presented that indicates that an EIT system capable of making measurements with a precision of 50 μV may be able to detect small changes in vessel size associated with variations in blood flow. An EIT system with these precision capabilities is presented that is able to collect data at frame rates exceeding 30 fps over a broad frequency range up to 10 MHz. The system's high speed imaging performance is verified through high contrast phantom experiments and through physiological imaging of induced ischemia with a human forearm. Region of interest analysis of the induced ischemia images shows a marked decrease in conductivity over time, changing at a rate of approximately −3 × 10 −7 S m −1 s −1 , which is the same order of magnitude as reported in the literature. The distinguishability analysis suggests that a system such as the one developed here may provide a means to characterize the hemodynamics associated with blood flow through the peripheral vasculature.

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Section: Assessing Peripheral Vasculature Healthmentioning

confidence: 99%

Video rate electrical impedance tomography of vascular changes: preclinical development

Halter¹,

Hartov²,

Paulsen³

2008

Physiol. Meas.

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Palmar microcirculation does not deteriorate 2 years after radial artery harvesting—implications for reconstructive free forearm flap transfer

Knobloch

Tomaszek

Busch

et al. 2007

Langenbecks Arch Surg

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Pedicled removal of the radial artery does not compromise superficial or deep palmar capillary blood flow, finger tip oxygenation, or postcapillary venous filling pressures in a long-term perspective in arteriosclerotic patients. No clinical relevant signs of malperfusion or any deterioration of palmar motor function was encountered. The blood flow via the ulnar artery and the interosseal artery compensates palmar perfusion without microcirculatory deterioration even more than 2 years after removal of the radial artery.

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Oxygen pressure measurement during grip exercise reveals exercise intolerance after radial harvest

Manabe

Tabuchi

Toyama

et al. 2004

The Annals of Thoracic Surgery

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Effect of radial artery harvesting on tissue perfusion and function of the hand

Cited by 23 publications

References 22 publications

Video rate electrical impedance tomography of vascular changes: preclinical development

Video rate electrical impedance tomography of vascular changes: preclinical development

Palmar microcirculation does not deteriorate 2 years after radial artery harvesting—implications for reconstructive free forearm flap transfer

Oxygen pressure measurement during grip exercise reveals exercise intolerance after radial harvest

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