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Journal of Human Lactation
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Changes in Breast Hemodynamics in Breastfeeding Mothers

Kayo Ogawa, MSW

Department of Pediatrics, Kagawa Prefectural College of Health Sciences

Takashi Kusaka, MD, DMedSc

Maternal Perinatal Center, Kagawa University

Kimie Tanimoto, MSN

Faculty of Nursing, School of Medicine, Kagawa University

Tomoko Nishida, MD, DMedSc

Department of Pediatrics, Kagawa University

Kenichi Isobe, MD, DMedSc

Department of Pediatrics, Kagawa University

Susumu Itoh, MD, DMedSc

Department of Pediatrics, Kagawa University

The purpose of the present study was to measure changes in blood volume and the oxygenation state of breast tissue during breastfeeding with the use of near-infrared time-resolved spectroscopy (TRS) as a noninvasive method. Forty breastfeeding mothers were divided into 2 groups in which measurements were made in the contralateral breast (group A) and in the ipsilateral breast (group B). The tissue concentrations of oxyhemoglobin, deoxyhemoglobin, and total hemoglobin and the hemoglobin oxygen saturation were measured in the breast by using TRS during a breastfeed. In both groups A and B, the values of all parameters decreased significantly after the start of breastfeeding compared with the pre-breastfeeding values. The values of all parameters fluctuated cyclically after the beginning of the breastfeed. Time-resolved spectroscopy is an effective noninvasive method for investigating the hemodynamics of the breast during breastfeeding. J Hum Lact. 24(4):415-421.

Key Words: near-infrared time-resolved spectroscopy • breastfeeding • lactation • breast hemodynamics • secretion of milk

This version was published on November 1, 2008

Journal of Human Lactation, Vol. 24, No. 4, 415-421 (2008)
DOI: 10.1177/0890334408323546
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