Peripheral oxygen extraction in patients with malignant obstructive jaundice.

Abstract:

:Malignant obstructive jaundice is associated with poor aerobic capacity. We measured oxygen consumption and oxygen extraction (arterial-venous oxygen content) in the legs of nine patients during cardiopulmonary exercise testing before pancreaticoduodenectomy. The median (IQR [range]) peak oxygen consumption was 67 (49-77 [32-84])% of predicted. Normal patterns of oxygen extraction were seen with increasing power towards lactate threshold. Near maximal oxygen extraction occurred at peak exercise. Femoral venous oxygen pressure and saturation exceeded baseline values whilst recovering from exercise. These findings suggest that peripheral oxygen extraction is normal during exercise in patients with malignant obstructive jaundice. The primary limitation in oxygen consumption is reduced oxygen delivery.

journal_name

Anaesthesia

journal_title

Anaesthesia

authors

Junejo MA,Siriwardena AK,Parker MJ

doi

10.1111/anae.12478

subject

Has Abstract

pub_date

2014-01-01 00:00:00

pages

32-6

issue

1

eissn

0003-2409

issn

1365-2044

journal_volume

69

pub_type

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