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Biomedical subjects

A Lubin

Publications and source records attributed to A Lubin.

At least 19 recordsLinked to original sources
PubMed1993

Traumatic pneumomediastinum in a child secondary to corn chip perforation of the esophagus.

Esophageal perforations, while an infrequent form of trauma in the pediatric population, are of concern because of their life-threatening complications. If not recognized and treated promptly, esophageal injuries can result in mediastinitis and death. An unusual case is presented, describing traumatic esophageal perforation in a child resulting from laceration by an ingested corn chip. A study is reported investigating the rigidity of three types of these popular snack chips. Stress testing and statistical analysis of the resultant measurement data indicated that the three brands of chips were equally rigid. The mean force of compression required to fracture the chips was approximately three pounds, a force great enough to damage the fragile structures of the upper aerodigestive system. Physicians and parents alike should be aware of the possible dangers of this type of snack food to avert the possibility of esophageal injury with its resultant morbidity and potential mortality.

Child↗
PubMed1978

Circadian variation in performance, subjective sleepiness, sleep, and oral temperature during an altered sleep-wake schedule.

The effect of an altered sleep-wake schedule on the interrelation of oral temperature, performance, and sleepiness was studied in 38 male Naval volunteers who maintained a 60 min treatment--160 min testing schedule for 40 consecutive hrs. During the 60 min treatment portion of each epoch, 8 subjected napped, 10 subjects exercised, and 20 subjects rested in bed. Sleep measures (for the nap subjects), oral temperature, performance on several tests, and Stanford Sleepiness Scale ratings were obtained at 10 equidistant intervals throughout the 40-hr period. Within-subject correlations showed that minimum oral temperature was significantly associated with maximum nap sleep time, errors on a vigilance task, and sleepiness ratings. In the nap subjects, errors and sleepiness ratings were highest following naps with high total sleep time, suggesting that sleep was detrimental to immediately subsequent performance and alertness. The distribution and interrelation of temperature, errors, and sleepiness, however, was similar in the three groups; this indicated that the synchronous circadian variation in these measures was responsible for the apparent detrimental effect of sleep in the nap subjects. When the diurnal effect was removed by holding time of day constant, the correlations among the variables fell to near-zero, indicating no causal relationship among the variables independent of the circadian rhythm.

Adolescent↗