Umbilical Cord Blood Gas Pairs with Near-Identical Results: Probability of Arterial or Venous Source.

Objective: In studies of concomitant arterial-venous umbilical cord blood gases (CAV-UBGs), approximately 10% of technically valid samples have very similar pH and/or pCO values and were probably drawn from the same type of blood vessel. Without a way to objectively determine the source in these cases, it has been argued that most of these same-source CAV-UBGs are venous because the vein is larger and more easily sampled than the artery. This study aimed to calculate the probability of an arterial (ProbAS) or venous source (ProbVS) of same-source CAV-UBGs in the clinically and medicolegally important pH range of 6.

Umbilical cord blood gases: probability of arterial or venous source in acidemia.

Objectives: Umbilical cord blood gases (UBG) may be a critical element in the assessment of a depressed newborn infant but in some cases the arterial or venous UBG source is uncertain making clinical and/or medical-legal interpretation difficult. Objective: to estimate the probability of an arterial (ProbAS) or venous (ProbVS) UBG source depending on blood gas parameters in acidemic cases.

Methods: A total of 56,703 pairs of concomitant arterial and venous (CAV) UBG results assayed over an 8.

Long-term tidal liquid ventilation in premature lambs: physiologic, biochemical and histological correlates.

Chronic lung disease in infants continues to be problematic. Tidal liquid ventilation (TLV) improves lung mechanics and provides effective gas exchange. We hypothesized that premature lambs could be supported safely with TLV and evaluated 9 preterm lambs (132 days gestation) on TLV up to 72 h.

[Porocarcinoma].

Porocarcinoma is a rare tumor in the intraepidermal sweat gland duct. Clinically, it resembles other neoplasms of the skin. A case of a 73-year-old woman with porocarcinoma with its clinical and pathological features is presented.