Descriptive analysis of immunological abnormalities in recurrent reproductive failure and therapeutical outcomes

Introduction Reproductive immunology has advanced significantly, recognizing the immune system as crucial in pregnancy development and facilitating the identification of abnormalities causing recurrent reproductive failure, as well as proposing targeted treatments for these patients. Methods This...

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Main Authors: Eduardo de la Fuente-Muñoz, Nabil Subhi-Issa, Ángela Villegas Mendiola, Juliana Ochoa-Grullón, Kissy Guevara-Hoyer, Raquel Gil-Laborda, Lydia Pilar-Suárez, María Dolores Mansilla Ruíz, María Pilar Gasca Escorial, Teresa Gastañaga-Holguera, Marta Calvo Urrutia, María Guzmán Fulgencio, Natalia Rodríguez Vicente, Miguel Fernández-Arquero, Ignacio Cristóbal García, Silvia Sánchez-Ramón
Format: Article
Language:English
Published: Medwave Estudios Limitada 2025-06-01
Series:Medwave
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Online Access:https://www.medwave.cl/investigacion/estudios/3037.html
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author Eduardo de la Fuente-Muñoz
Nabil Subhi-Issa
Ángela Villegas Mendiola
Juliana Ochoa-Grullón
Kissy Guevara-Hoyer
Raquel Gil-Laborda
Lydia Pilar-Suárez
María Dolores Mansilla Ruíz
María Pilar Gasca Escorial
Teresa Gastañaga-Holguera
Marta Calvo Urrutia
María Guzmán Fulgencio
Natalia Rodríguez Vicente
Miguel Fernández-Arquero
Ignacio Cristóbal García
Silvia Sánchez-Ramón
author_facet Eduardo de la Fuente-Muñoz
Nabil Subhi-Issa
Ángela Villegas Mendiola
Juliana Ochoa-Grullón
Kissy Guevara-Hoyer
Raquel Gil-Laborda
Lydia Pilar-Suárez
María Dolores Mansilla Ruíz
María Pilar Gasca Escorial
Teresa Gastañaga-Holguera
Marta Calvo Urrutia
María Guzmán Fulgencio
Natalia Rodríguez Vicente
Miguel Fernández-Arquero
Ignacio Cristóbal García
Silvia Sánchez-Ramón
author_sort Eduardo de la Fuente-Muñoz
collection DOAJ
description Introduction Reproductive immunology has advanced significantly, recognizing the immune system as crucial in pregnancy development and facilitating the identification of abnormalities causing recurrent reproductive failure, as well as proposing targeted treatments for these patients. Methods This is a descriptive, observational, and retrospective study conducted at the Reproductive Immunology Unit of the Hospital Clínico San Carlos in Madrid. Clinical and analytical data were analyzed for patients diagnosed with recurrent reproductive failure between 2019 and 2023. Data on treatments received as prophylaxis for pregnancy loss and their success rates were also collected. Finally, a comparative study of the two major subgroups in the cohort was performed. Results A total of 277 patients were included. The most prevalent diagnosis was recurrent miscarriage (64.2%), followed by recurrent implantation failure (25.2%). Immunological and/or vascular abnormalities were detected in 88.8% of patients. The most prevalent immunological abnormality was the expansion of cytotoxic natural killer cells (49.5%), followed by HLA-C-KIR mismatch (39.1%) and the presence of antiphospholipid antibodies (38.5%). The comparative study between the recurrent miscarriage and the recurrent implantation failure subgroups revealed statistically significant differences regarding the presence of antinuclear antibodies (15.4% vs. 28.3%, p=0.03) and vitamin D deficiency (37.2 vs 60.0%, p=0.01). The most commonly used medications were low-dose acetylsalicylic acid, low-molecular-weight heparin, hydroxychloroquine, and/or prednisone, with an overall success rate of 97.3%. Neither moderate nor severe side effects were reported. Conclusions Immunological studies to identify causes of recurrent reproductive failure are highly useful in cases where other etiologies have been excluded. Targeted therapies for addressing these abnormalities have demonstrated significant effectiveness.
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spelling doaj-art-c4f4ff4a80d4431784c714689d694f472025-08-20T02:41:31ZengMedwave Estudios LimitadaMedwave0717-63842025-06-012505e3037e303710.5867/medwave.2025.05.3037Descriptive analysis of immunological abnormalities in recurrent reproductive failure and therapeutical outcomesEduardo de la Fuente-Muñoz0https://orcid.org/0000-0001-8419-679XNabil Subhi-Issa1https://orcid.org/0000-0002-0654-7934Ángela Villegas Mendiola2https://orcid.org/0009-0008-4394-5465Juliana Ochoa-Grullón3https://orcid.org/0000-0002-5218-7108Kissy Guevara-Hoyer4https://orcid.org/0000-0003-3568-8821Raquel Gil-Laborda5https://orcid.org/0000-0002-8689-3019Lydia Pilar-Suárez6https://orcid.org/0000-0002-0278-6479María Dolores Mansilla Ruíz7https://orcid.org/0009-0000-1304-4561María Pilar Gasca Escorial8Teresa Gastañaga-Holguera9https://orcid.org/0000-0002-7130-0137Marta Calvo Urrutia10María Guzmán Fulgencio11Natalia Rodríguez Vicente12https://orcid.org/0000-0001-5130-5718Miguel Fernández-Arquero13https://orcid.org/0009-0007-6213-6789Ignacio Cristóbal García14https://orcid.org/0000-0002-2793-6592Silvia Sánchez-Ramón15https://orcid.org/0000-0001-9585-6167Servicio Inmunología, Hospital Clínico San Carlos, Madrid, España; Departamento Inmunología, ORL y Oftalmología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, EspañaServicio Inmunología, Hospital Clínico San Carlos, Madrid, España; Departamento Inmunología, ORL y Oftalmología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, EspañaServicio Inmunología, Hospital Clínico San Carlos, Madrid, España; Departamento Inmunología, ORL y Oftalmología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, EspañaServicio Inmunología, Hospital Clínico San Carlos, Madrid, EspañaServicio Inmunología, Hospital Clínico San Carlos, Madrid, EspañaServicio Inmunología, Hospital Clínico San Carlos, Madrid, España; Departamento Inmunología, ORL y Oftalmología, Facultad de Medicina,Servicio de Obstetricia y Ginecología, Hospital Clínico San Carlos, Madrid, España Servicio Inmunología, Hospital Clínico San Carlos, Madrid, EspañaServicio de Obstetricia y Ginecología, Hospital Clínico San Carlos, Madrid, EspañaServicio de Obstetricia y Ginecología, Hospital Clínico San Carlos, Madrid, EspañaServicio de Obstetricia y Ginecología, Hospital Clínico San Carlos, Madrid, EspañaServicio Inmunología, Hospital Clínico San Carlos, Madrid, EspañaServicio Inmunología, Hospital Clínico San Carlos, Madrid, EspañaServicio Inmunología, Hospital Clínico San Carlos, Madrid, España; Departamento Inmunología, ORL y Oftalmología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, EspañaServicio Inmunología, Hospital Clínico San Carlos, Madrid, España; Servicio de Obstetricia y Ginecología, Hospital Clínico San Carlos, Madrid, EspañaServicio Inmunología, Hospital Clínico San Carlos, Madrid, España; Departamento Inmunología, ORL y Oftalmología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, España.Introduction Reproductive immunology has advanced significantly, recognizing the immune system as crucial in pregnancy development and facilitating the identification of abnormalities causing recurrent reproductive failure, as well as proposing targeted treatments for these patients. Methods This is a descriptive, observational, and retrospective study conducted at the Reproductive Immunology Unit of the Hospital Clínico San Carlos in Madrid. Clinical and analytical data were analyzed for patients diagnosed with recurrent reproductive failure between 2019 and 2023. Data on treatments received as prophylaxis for pregnancy loss and their success rates were also collected. Finally, a comparative study of the two major subgroups in the cohort was performed. Results A total of 277 patients were included. The most prevalent diagnosis was recurrent miscarriage (64.2%), followed by recurrent implantation failure (25.2%). Immunological and/or vascular abnormalities were detected in 88.8% of patients. The most prevalent immunological abnormality was the expansion of cytotoxic natural killer cells (49.5%), followed by HLA-C-KIR mismatch (39.1%) and the presence of antiphospholipid antibodies (38.5%). The comparative study between the recurrent miscarriage and the recurrent implantation failure subgroups revealed statistically significant differences regarding the presence of antinuclear antibodies (15.4% vs. 28.3%, p=0.03) and vitamin D deficiency (37.2 vs 60.0%, p=0.01). The most commonly used medications were low-dose acetylsalicylic acid, low-molecular-weight heparin, hydroxychloroquine, and/or prednisone, with an overall success rate of 97.3%. Neither moderate nor severe side effects were reported. Conclusions Immunological studies to identify causes of recurrent reproductive failure are highly useful in cases where other etiologies have been excluded. Targeted therapies for addressing these abnormalities have demonstrated significant effectiveness.https://www.medwave.cl/investigacion/estudios/3037.htmlrecurrent miscarriageinfertility femalereproductive medicineantiphospholipid syndromeautoimmunity
spellingShingle Eduardo de la Fuente-Muñoz
Nabil Subhi-Issa
Ángela Villegas Mendiola
Juliana Ochoa-Grullón
Kissy Guevara-Hoyer
Raquel Gil-Laborda
Lydia Pilar-Suárez
María Dolores Mansilla Ruíz
María Pilar Gasca Escorial
Teresa Gastañaga-Holguera
Marta Calvo Urrutia
María Guzmán Fulgencio
Natalia Rodríguez Vicente
Miguel Fernández-Arquero
Ignacio Cristóbal García
Silvia Sánchez-Ramón
Descriptive analysis of immunological abnormalities in recurrent reproductive failure and therapeutical outcomes
Medwave
recurrent miscarriage
infertility female
reproductive medicine
antiphospholipid syndrome
autoimmunity
title Descriptive analysis of immunological abnormalities in recurrent reproductive failure and therapeutical outcomes
title_full Descriptive analysis of immunological abnormalities in recurrent reproductive failure and therapeutical outcomes
title_fullStr Descriptive analysis of immunological abnormalities in recurrent reproductive failure and therapeutical outcomes
title_full_unstemmed Descriptive analysis of immunological abnormalities in recurrent reproductive failure and therapeutical outcomes
title_short Descriptive analysis of immunological abnormalities in recurrent reproductive failure and therapeutical outcomes
title_sort descriptive analysis of immunological abnormalities in recurrent reproductive failure and therapeutical outcomes
topic recurrent miscarriage
infertility female
reproductive medicine
antiphospholipid syndrome
autoimmunity
url https://www.medwave.cl/investigacion/estudios/3037.html
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