New technique for automatic sonographic measurement of change in head–perineum distance and angle of progression during active phase of second stage of labor

2020 ◽  
Vol 56 (4) ◽  
pp. 597-602 ◽  
Author(s):  
L. Angeli ◽  
F. Conversano ◽  
A. Dall'Asta ◽  
N. Volpe ◽  
M. Simone ◽  
...  
Keyword(s):  
Active Phase ◽  
New Technique ◽  
Measurement Of Change ◽  
Second Stage Of Labor ◽  
Second Stage ◽  
Angle Of Progression

The Effects of an External Nasal Dilator on Labor

2005 ◽  
Vol 19 (2) ◽  
pp. 221-224 ◽  
Author(s):  
Oscar Sadan ◽  
Sagit Shushan ◽  
Ido Eldar ◽  
Shmuel Evron ◽  
Samuel Lurie ◽  
...  
Keyword(s):  
Active Phase ◽  
Well Being ◽  
Control Group ◽  
Second Stage Of Labor ◽  
Second Stage ◽  
Satisfaction Rate ◽  
Several Variables ◽  
Active Labor ◽  
Meconium Stained Amniotic Fluid

Background The aim of this study was to assess the effect of an external nasal dilator on several variables characterizing labor in both mother and fetus. Methods One hundred and fifty primigravida women in active labor were randomized to wear, throughout labor, either a dilator spring-loaded nasal strip or a placebo device. Data were obtained during labor and compared between the groups. After delivery, the satisfaction rate was assessed. Results No differences were found between the study and the control group regarding rate of induction or augmentation of labor as well as Montevideo units reached, frequency of rupture of membranes, duration of the active phase and second stage of labor, usage of epidural analgesia, normal fetal heart pattern, meconium-stained amniotic fluid, and neonatal well being. Length of maternal and neonatal hospitalization also did not differ between the groups. Satisfaction rate was significantly higher in parturient women wearing nasal strips with a dilator spring than in parturient women wearing a placebo spring (P < 0.0001). Conclusion Nasal strips do not change the course but ameliorate the quality of labor by improving the ease of breathing. Nasal dilators sustain the respiratory effort associated with the long process of labor and may control the switch from nasal to oronasal breathing during delivery.

scholarly journals McRoberts' maneuver increases fetal head angle of progression in second stage of labor

2018 ◽  
Vol 52 (4) ◽  
pp. 545-547 ◽  
Author(s):  
A. L. Zimerman ◽  
M. Moskovich ◽  
E. B. Levi ◽  
R. Maymon ◽  
J. Tobvin ◽  
...  
Keyword(s):  
Fetal Head ◽  
Second Stage Of Labor ◽  
Second Stage ◽  
Angle Of Progression

Angle of Progression on Ultrasound in the Second Stage of Labor and Spontaneous Vaginal Delivery

2017 ◽  
Vol 35 (04) ◽  
pp. 413-420 ◽  
Author(s):  
Caroline Rouse ◽  
David Cantonwine ◽  
Sarah Little ◽  
Thomas McElrath ◽  
Julian Robinson ◽  
...  
Keyword(s):  
Vaginal Delivery ◽  
Prospective Observational Study ◽  
Mode Of Delivery ◽  
Transperineal Ultrasound ◽  
Survival Models ◽  
Spontaneous Vaginal Delivery ◽  
Second Stage Of Labor ◽  
Second Stage ◽  
Nulliparous Women ◽  
Angle Of Progression

Objective The objective of this study was to assess the association between the angle of progression (AoP) measured by transperineal ultrasound and mode of delivery and duration of the second stage. Study Design This is a prospective observational study of nulliparous women with a singleton gestation at term in which serial transperineal ultrasound examinations were obtained during the second stage of labor. Multivariable logistic regression and adjusted survival models were used for the analysis. Results A total of 137 patients were included in the analysis and median AoP for the study group was 153 degrees. The adjusted odds ratio (aOR) of requiring an operative delivery was 2.6 times higher for those patients who had an AoP < 153 degrees and the aOR of requiring a cesarean delivery was almost six times higher when compared with those patients who had an AoP ≥ 153 degrees (95% confidence interval [CI]: 1.0, 6.2; p = 0.04; aOR: 5.8, 95% CI: 1.2–28.3; p = 0.03, respectively). Those patients with an AoP < 153 degrees were at a higher hazard of staying pregnant longer (adjusted hazard ratio: 1.8, 95% CI: 1.2–2.8, p = 0.005). Conclusion The AoP has the potential to predict spontaneous vaginal delivery and the duration of the second stage of labor which may be useful in counseling patients and managing their labor.

scholarly journals Mueller-Hillis maneuver and angle of progression: Are they correlated?

2017 ◽  
Vol 63 (6) ◽  
pp. 527-531
Author(s):  
Sofia Mendes ◽  
Rita Silva ◽  
Inês Martins ◽  
Susana Santo ◽  
Nuno Clode
Keyword(s):  
Roc Curve ◽  
Area Under The Curve ◽  
P Value ◽  
Operating Characteristics ◽  
Roc Curve Analysis ◽  
Singleton Pregnancy ◽  
Fetal Head ◽  
Second Stage Of Labor ◽  
Second Stage ◽  
Angle Of Progression

Summary Objective: Mueller-Hillis maneuver (MHM) and angle of progression (AOP) measured by transperineal ultrasound have been used to assess fetal head descent during the second stage of labor. We aimed to assess whether AOP correlates with MHM in the second stage of labor. Method: A prospective observational study including women with singleton pregnancy in the second stage of labor was performed. The AOP was measured immediately after the Mueller-Hillis maneuver. A receiver-operating characteristics (ROC) curve analysis was performed to determine the best discriminatory AOP cut-off for the identification of a positive MHM. A p-value less than 0.05 was considered statistically significant. Results: One hundred and sixty-six (166) women were enrolled in the study and 81.3% (n=135) had a positive MHM. The median AOP was 143º (106º to 210º). The area under the curve for the prediction of a positive maneuver was 0.619 (p=0.040). Derived from the ROC curve, an AOP of 138.5º had the best diagnostic performance for the identification of a positive MHM (specificity of 65% and a sensitivity of 67%). Conclusion: An AOP of 138º seems to be associated with a positive MHM in the second stage of labor.

Correlation between clinical fetal head station and sonographic angle of progression during the second stage of labor

2017 ◽  
Vol 31 (21) ◽  
pp. 2905-2910 ◽  
Author(s):  
Sharon Perlman ◽  
Zvi Kivilevitch ◽  
Orit Moran ◽  
Eldad Katorza ◽  
Salim Kees ◽  
...  
Keyword(s):  
Fetal Head ◽  
Second Stage Of Labor ◽  
Second Stage ◽  
Angle Of Progression
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