Skin-Fold Thickness, Body Mass, and Obesity Indexes and the Arterial to Skin-Surface Po2 Gradient

Rafferty, Terence D.; Morrero, Osvaldo

doi:10.1001/archsurg.1983.01390100016005

Cited by 6 publications

(4 citation statements)

References 59 publications

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“…This study, limited by the small sample size, did not establish reference ranges and was not designed or powered to identify factors that affected the response of transcutaneous oxygen tension to high FiO 2 . Rafferty and Morrero in their analysis of "skin factors" that may affect the relationship between PaO 2 and PtcO 2 found that skin-fold thickness measurements, BMI, body surface area, and ponderal index were unrelated to individual variability in the measurement of PtcO 2 in the absence of circulatory insufficiency [46]. This is contrary to the present study, where increasing BMI was negatively correlated with a lower baseline PtcO 2 and Oxygen Challenge Test.…”

Section: Discussioncontrasting

confidence: 99%

Determination of Reference Ranges for Transcutaneous Oxygen and Carbon Dioxide Tension and the Oxygen Challenge Test in Healthy and Morbidly Obese Subjects

Nishiguchi

Suetsugu

et al. 2008

Journal of Surgical Research

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Section: Discussioncontrasting

confidence: 99%

Determination of Reference Ranges for Transcutaneous Oxygen and Carbon Dioxide Tension and the Oxygen Challenge Test in Healthy and Morbidly Obese Subjects

Nishiguchi

Suetsugu

et al. 2008

Journal of Surgical Research

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“…Although the authors dispatched the findings with a terse commentary, attributing it to differences in skin or its vascularisation, the data was recorded and is at the disposition of the scientific community. However, prior to this it had been stated that transcutaneous Pa O 2 does not depend on skin characteristics 7. Later, anaesthesiologists working with neurosurgical patients found differences in the Pa O 2 of cerebral tissue between men and women 8…”

Section: Discussionmentioning

confidence: 99%

Sex-linked differences in pulse oxymetry

et al. 2007

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The difference between genders has generated increasing interest in recent years. It is well known that women and men show differences in their respiratory system: different red blood cell counts, haemoglobin and 2,3-diphosphoglycerate plasma concentrations. Recently, further differences have been found in the ventilatory response to hypoxia and exercise and the evolution of some respiratory illnesses. In this study it was found that during rest at sea level, the haemoglobin oxygen saturation, as measured by pulse oxymetry, is slightly higher in women than in men (98.6 (SD 1.1)% versus 97.9 (SD 0.9)%; p = 0.001). These findings are consistent with other studies, which found gender differences in the transcutaneous or tissue PaO(2). The difference in oxygen saturation is not related to differences in ventilation. The disparity is modest and does not seem to produce great differences in the oxygen content of arterial blood, but combined with the different affinity of haemoglobin for oxygen or different metabolic rate, may play a role in the course of elite competition sports, high altitude ascents or the evaluation of critically ill patients. Further studies are needed to establish the degree, extent and clinical importance of these differences in the saturation of haemoglobin.

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“…Also, the performances of TcPO2 measurement were found to be similar in diabetic and non-diabetic patients [17]. Similarly, body mass index variation did not affect TcPO2 measurements [18].…”

Section: The Tcpo2 Techniquementioning

confidence: 66%

What Is Currently the Role of TcPO2 in the Choice of the Amputation Level of Lower Limbs? A Comprehensive Review

Catella

Long

Mazzolai

2021

JCM

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Some patients still require major amputation for lower extremity peripheral arterial disease treatment. The purpose of pre-operative amputation level selection is to determine the most distal amputation site with the highest healing probability without re-amputation. Transcutaneous oximetry (TcPO2) can detect viable tissue with the highest probability of healing. Several factors affect the accuracy of TcPO2; nevertheless, surgeons rely on TcPO2 values to determine the optimal amputation level. Background about the development of TcPO2, methods of measurement, consequences of lower limb amputation level, and the place of TcPO2 in the choice of the amputation level are reviewed herein. Most of the retrospective studies indicated that calf TcPO2 values greater than 40 mmHg were associated with a high percentage of successful wound healing after below-knee-amputation, whereas values lower than 20 mmHg indicated an increased risk of unsuccessful healing. However, a consensus on the precise cut-off value of TcPO2 necessary to assure healing is missing. Ways of improvement for TcPO2 performance applied to the optimization of the amputation-level are reported herein. Further prospective data are needed to better approach a TcPO2 value that will promise an acceptable risk of re-amputation. Standardized TcPO2 measurement is crucial to ensure quality of data.

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Skin-Fold Thickness, Body Mass, and Obesity Indexes and the Arterial to Skin-Surface Po2 Gradient

Cited by 6 publications

References 59 publications

Determination of Reference Ranges for Transcutaneous Oxygen and Carbon Dioxide Tension and the Oxygen Challenge Test in Healthy and Morbidly Obese Subjects

Determination of Reference Ranges for Transcutaneous Oxygen and Carbon Dioxide Tension and the Oxygen Challenge Test in Healthy and Morbidly Obese Subjects

Sex-linked differences in pulse oxymetry

What Is Currently the Role of TcPO2 in the Choice of the Amputation Level of Lower Limbs? A Comprehensive Review

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