Salivary progesterone concentrations in symptomatic patients with imminent preterm labor and patients with deliveries beyond 7 days

[Salivary progesterone concentrations in symptomatic patients with imminent preterm labor and patients with deliveries beyond 7 days]

Eduardo Reyna-Villasmil1, Jorly Mejía-Montilla2, Nadia Reyna-Villasmil2, Duly Torres-Cepeda1, Martha Rondón-Tapia1, Maira Sarmiento-Piña1, Carlos Briceño-Perez2

1. Servicio de Ginecología y Obstetricia, Hospital Central “Dr. Urquinaona, Maracaibo, Venezuela; 2. Facultad de Medicina de la Universidad del Zulia, Maracaibo, Venezuela.

Published: 2024-04-24

Abstract

Objetivo: Comparar las concentraciones de progesterona en saliva en pacientes sintomáticas con parto pretérmino inminente y pacientes con partos más allá de 7 días. Metodología: Estudio prospectivo y longitudinal realizado en el Hospital Central “Dr. Urquinaona” de Venezuela. Fueron seleccionadas pacientes con parto pretérmino en los siguientes 7 días (grupo A) y con parto pretérmino más allá de los 7 días (grupo B). Se analizaron las características generales, concentraciones de progesterona en saliva, parto pretérmino inminente y eficacia pronóstica. Resultados: Fueron incluidas 327 pacientes, 75 mujeres en el grupo A y 251 pacientes en el grupo B. Las pacientes del grupo A presentaron valores menores de progesterona en saliva (3,003 +/- 447 pg/mL) comparado con las pacientes del grupo B (3,639 +/- 430 pg/mL; p < 0,0001). El valor de corte predictivo fue de 3,100 pg/mL, demostrando un valor área bajo la curva de 0,834 con sensibilidad de 58,7%, especificidad de 84,9%, valor predictivo positivo de 53,7%, valor predictivo negativo de 87,3% y exactitud pronostica de 78,8% para la predicción de parto pretérmino inminente. Conclusiones: Las concentraciones de progesterona en saliva son significativamente más bajas en las pacientes con parto pretérmino inminente, comparado con aquellas pacientes con partos más allá de los 7 días.


Abstract

Objective: To compare progesterone concentrations in saliva in symptomatic patients with imminent preterm labor and patients with deliveries beyond 7 days. Methodology: Prospective and longitudinal study carried out at the Central Hospital "Dr. Urquinaona" of Venezuela. Patients with preterm delivery within 7 days (group A) and with preterm delivery beyond 7 days (group B) were selected. General characteristics, saliva progesterone concentrations, imminent preterm delivery and prognostic efficacy were analyzed. Results: A total of 327 patients were included, 75 women in group A and 251 patients in group B. Patients in group A had lower saliva progesterone values (3.003 +/- 447 pg/mL) compared to patients in group B (3.639 +/- 430 pg/mL; p < 0.0001). The predictive cutoff value was 3,100 pg/mL, demonstrating an area under the curve value of 0.834 with sensitivity of 58.7%, specificity of 84.9%, positive predictive value of 53.7%, negative predictive value of 87.3% and prognostic accuracy of 78.8% for prediction of impending preterm labor. Conclusions: Saliva progesterone concentrations are significantly lower in patients with imminent preterm labor compared to those patients with deliveries beyond 7 days.

Author Biographies

Jorly Mejía-Montilla, Facultad de Medicina de la Universidad del Zulia, Maracaibo, Venezuela

 

 

Nadia Reyna-Villasmil, Facultad de Medicina de la Universidad del Zulia, Maracaibo, Venezuela

 

 

Duly Torres-Cepeda, Servicio de Ginecología y Obstetricia, Hospital Central “Dr. Urquinaona, Maracaibo, Venezuela

 

 

Martha Rondón-Tapia, Servicio de Ginecología y Obstetricia, Hospital Central “Dr. Urquinaona, Maracaibo, Venezuela

 

 

Maira Sarmiento-Piña, Servicio de Ginecología y Obstetricia, Hospital Central “Dr. Urquinaona, Maracaibo, Venezuela

 

 

Carlos Briceño-Perez, Facultad de Medicina de la Universidad del Zulia, Maracaibo, Venezuela

 

 

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