Responses of fetal sheep to simulated no-decompression dives

M. K. Stock, E. H. Lanphier, Debra Anderson, L. C. Anderson, T. M. Phernetton, J. H. Rankin

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The effect of simulated standard no-decompression dives to 60 and 100 ft of seawater was tested in 12 near term sheep carrying 16 fetuses. In the immediate postdive period there were no significant changes in fetal blood pressure or fetal placental or renal blood flow, but the maternal blood pressure was elevated and the maternal placental blood flow was depressed. Six surgically prepared fetuses were dived to 100 ft. Five died within 20 min of ascent and the sixth suffered severe cardiac arrhythmia and hypotension. At autopsy all fetuses were observed to have massive bubbling in the arterial system and heart. Five fetuses were dived to 100 ft without surgery. Two were alive 3 h later and no bubbles were present at autopsy, and three were born alive at term. With the 60-ft dives, three fetuses were subjected to surgery and all suffered massive bubbling. Two fetuses were dived to 60 ft without surgery; one was alive after 3 h and the other was born alive at term. We conclude that surgery and monitoring result in the formation of postdive gas bubbles that would not otherwise appear.

Original languageEnglish (US)
Pages (from-to)776-780
Number of pages5
JournalJournal of Applied Physiology Respiratory Environmental and Exercise Physiology
Volume48
Issue number5
StatePublished - 1980
Externally publishedYes

Fingerprint

Decompression
Sheep
Fetus
Autopsy
Mothers
Blood Pressure
Renal Circulation
Seawater
Fetal Blood
Hypotension
Cardiac Arrhythmias
Gases

ASJC Scopus subject areas

  • Physiology
  • Endocrinology

Cite this

Stock, M. K., Lanphier, E. H., Anderson, D., Anderson, L. C., Phernetton, T. M., & Rankin, J. H. (1980). Responses of fetal sheep to simulated no-decompression dives. Journal of Applied Physiology Respiratory Environmental and Exercise Physiology, 48(5), 776-780.

Responses of fetal sheep to simulated no-decompression dives. / Stock, M. K.; Lanphier, E. H.; Anderson, Debra; Anderson, L. C.; Phernetton, T. M.; Rankin, J. H.

In: Journal of Applied Physiology Respiratory Environmental and Exercise Physiology, Vol. 48, No. 5, 1980, p. 776-780.

Research output: Contribution to journalArticle

Stock, MK, Lanphier, EH, Anderson, D, Anderson, LC, Phernetton, TM & Rankin, JH 1980, 'Responses of fetal sheep to simulated no-decompression dives', Journal of Applied Physiology Respiratory Environmental and Exercise Physiology, vol. 48, no. 5, pp. 776-780.
Stock MK, Lanphier EH, Anderson D, Anderson LC, Phernetton TM, Rankin JH. Responses of fetal sheep to simulated no-decompression dives. Journal of Applied Physiology Respiratory Environmental and Exercise Physiology. 1980;48(5):776-780.
Stock, M. K. ; Lanphier, E. H. ; Anderson, Debra ; Anderson, L. C. ; Phernetton, T. M. ; Rankin, J. H. / Responses of fetal sheep to simulated no-decompression dives. In: Journal of Applied Physiology Respiratory Environmental and Exercise Physiology. 1980 ; Vol. 48, No. 5. pp. 776-780.
@article{ac5298dc41f442e2ac6804eef1b30b31,
title = "Responses of fetal sheep to simulated no-decompression dives",
abstract = "The effect of simulated standard no-decompression dives to 60 and 100 ft of seawater was tested in 12 near term sheep carrying 16 fetuses. In the immediate postdive period there were no significant changes in fetal blood pressure or fetal placental or renal blood flow, but the maternal blood pressure was elevated and the maternal placental blood flow was depressed. Six surgically prepared fetuses were dived to 100 ft. Five died within 20 min of ascent and the sixth suffered severe cardiac arrhythmia and hypotension. At autopsy all fetuses were observed to have massive bubbling in the arterial system and heart. Five fetuses were dived to 100 ft without surgery. Two were alive 3 h later and no bubbles were present at autopsy, and three were born alive at term. With the 60-ft dives, three fetuses were subjected to surgery and all suffered massive bubbling. Two fetuses were dived to 60 ft without surgery; one was alive after 3 h and the other was born alive at term. We conclude that surgery and monitoring result in the formation of postdive gas bubbles that would not otherwise appear.",
author = "Stock, {M. K.} and Lanphier, {E. H.} and Debra Anderson and Anderson, {L. C.} and Phernetton, {T. M.} and Rankin, {J. H.}",
year = "1980",
language = "English (US)",
volume = "48",
pages = "776--780",
journal = "Journal of Applied Physiology",
issn = "8750-7587",
publisher = "American Physiological Society",
number = "5",

}

TY - JOUR

T1 - Responses of fetal sheep to simulated no-decompression dives

AU - Stock, M. K.

AU - Lanphier, E. H.

AU - Anderson, Debra

AU - Anderson, L. C.

AU - Phernetton, T. M.

AU - Rankin, J. H.

PY - 1980

Y1 - 1980

N2 - The effect of simulated standard no-decompression dives to 60 and 100 ft of seawater was tested in 12 near term sheep carrying 16 fetuses. In the immediate postdive period there were no significant changes in fetal blood pressure or fetal placental or renal blood flow, but the maternal blood pressure was elevated and the maternal placental blood flow was depressed. Six surgically prepared fetuses were dived to 100 ft. Five died within 20 min of ascent and the sixth suffered severe cardiac arrhythmia and hypotension. At autopsy all fetuses were observed to have massive bubbling in the arterial system and heart. Five fetuses were dived to 100 ft without surgery. Two were alive 3 h later and no bubbles were present at autopsy, and three were born alive at term. With the 60-ft dives, three fetuses were subjected to surgery and all suffered massive bubbling. Two fetuses were dived to 60 ft without surgery; one was alive after 3 h and the other was born alive at term. We conclude that surgery and monitoring result in the formation of postdive gas bubbles that would not otherwise appear.

AB - The effect of simulated standard no-decompression dives to 60 and 100 ft of seawater was tested in 12 near term sheep carrying 16 fetuses. In the immediate postdive period there were no significant changes in fetal blood pressure or fetal placental or renal blood flow, but the maternal blood pressure was elevated and the maternal placental blood flow was depressed. Six surgically prepared fetuses were dived to 100 ft. Five died within 20 min of ascent and the sixth suffered severe cardiac arrhythmia and hypotension. At autopsy all fetuses were observed to have massive bubbling in the arterial system and heart. Five fetuses were dived to 100 ft without surgery. Two were alive 3 h later and no bubbles were present at autopsy, and three were born alive at term. With the 60-ft dives, three fetuses were subjected to surgery and all suffered massive bubbling. Two fetuses were dived to 60 ft without surgery; one was alive after 3 h and the other was born alive at term. We conclude that surgery and monitoring result in the formation of postdive gas bubbles that would not otherwise appear.

UR - http://www.scopus.com/inward/record.url?scp=0018852452&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0018852452&partnerID=8YFLogxK

M3 - Article

C2 - 7451285

AN - SCOPUS:0018852452

VL - 48

SP - 776

EP - 780

JO - Journal of Applied Physiology

JF - Journal of Applied Physiology

SN - 8750-7587

IS - 5

ER -