Comparison of non-invasive blood pressure measurements on the arm and calf during cesarean delivery

J. Zahn, H. Bernstein, S. Hossain, C. Bodian, Y. Beilin

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Objective: Shivering may occur in 75% of women undergoing spinal anesthesia for cesarean delivery and may render an automated noninvasive blood pressure (ANIBP) device incapable of determining blood pressure (BP). When patients shiver under spinal anesthesia, the lower extremities do not exhibit the same involuntary muscle movements as do the upper extremities. This study was undertaken to determine if a correlation exists between ANIBP measurements in the arm and calf of women undergoing cesarean delivery under spinal anesthesia. Methods. We enrolled 73 women in this blinded prospective study. Simultaneous arm and calf BP were measured with an ANIBP and differences between the two were determined. Results. We found significant differences between the average difference in systolic and in diastolic BP, no significant difference between the average mean BP, and a tendency for the systolic BP to be higher and the diastolic BP to be lower in the calf than in the arm; however, there was a large degree of variability among patients. Conclusion. We conclude that there is a poor correlation between the BP measured by an ANIBP on the calf and one on the arm. In the parturient undergoing cesarean section, lower extremity BP as measured by an ANIBP does not correlate with the arm ANIBP and should not be used to assure fetal well being.

Original languageEnglish
Pages (from-to)557-562
Number of pages6
JournalJournal of Clinical Monitoring and Computing
Issue number8
StatePublished - 2000


  • Blood pressure
  • Cesarean delivery
  • Equipment
  • Obstetrics
  • Spinal anesthesia


Dive into the research topics of 'Comparison of non-invasive blood pressure measurements on the arm and calf during cesarean delivery'. Together they form a unique fingerprint.

Cite this