The Lower Parts of the Uterus During the First Stage of Labour in Occipito ‐ Anterior Vertex Presentation

Lindgren, Lennart

doi:10.3109/00016345509154530

Cited by 33 publications

(7 citation statements)

References 86 publications

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“…Methods for the clinical measurement of uterine forces during labour have been collated in the works of, among others, Karlson (1944), Lindgren (1955) and, in a monograph, Reynolds (1954). The latter has attempted to create a terminology for such experiments.…”

Section: Introductionmentioning

confidence: 99%

The Vacuum Extractor an Obstetrical Instrument and the Parturiometer a Tokographic Device

Malmstrom¹

1957

Acta Obstet Gynecol Scand

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Section: Introductionmentioning

confidence: 99%

The Vacuum Extractor an Obstetrical Instrument and the Parturiometer a Tokographic Device

Malmstrom¹

1957

Acta Obstet Gynecol Scand

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“…Previous investigations have confirmed the obvious likelihood that the forces acting on the fetal head are not evenly distributed [1,3]. Thus the values obtained vary significantly according to the location of the transducer on the skull.…”

Section: Discussionmentioning

confidence: 62%

Measurement of head compression during labor: Preliminary results

Rempen

Kraus²

1991

Jpme

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To study the pressure to which the fetal head is exposed during the second stage of labor, an instrument was designed to measure continuously the pressure between the presenting part and the birth canal on both sides of the fetal head. Pressure parameters during and between the uterine contractions were calculated from 42 spontaneous vertex deliveries presenting as occiput anterior. During the second stage the overall average of the mean maximum head pressure during uterine contraction was 31.8 +/- 11.0 kPa, that of the mean head pressure measured 13.3 +/- 4.8 kPa during uterine contraction and 5.5 +/- 3.7 kPa during the interval between contractions. The pressure on the fetal head was about twice as high as the amniotic pressure. It increased towards the end of labor. The objective measurement of fetal head pressure is the prerequisite in the study of the relationship between birth-related injuries and excessive head compression during parturition.

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“…The changes brought about by PCB might have been due to the adrenaline in the analgesic solution. Lindgren, using intrauterine tokographs placed between the uterine wall and the foetal head (17), recorded rapid pressure oscillations which he designated "P pattern". The P pattern was thought to originate from local muscular contractions in the uterine wall covering the foetal head.…”

Section: Duration Of the Phases After Pcb Without Adrenalinementioning

confidence: 99%

The Shape of the Amniotic Pressure Curve Before and After Paracervical Block During Labour

Jenssen¹

1975

Acta Obstet Gynecol Scand

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The Lower Parts of the Uterus During the First Stage of Labour in Occipito ‐ Anterior Vertex Presentation

Cited by 33 publications

References 86 publications

The Vacuum Extractor an Obstetrical Instrument and the Parturiometer a Tokographic Device

The Vacuum Extractor an Obstetrical Instrument and the Parturiometer a Tokographic Device

Measurement of head compression during labor: Preliminary results

The Shape of the Amniotic Pressure Curve Before and After Paracervical Block During Labour

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