Journal Information
Original article
Available online 11 November 2025
Analysis of clinical experience with angiotensin II: A meta-analysis and 4 AI
Análisis de la experiencia clínica con angiotensina II: un metaanálisis y 4 inteligencias artificiales
Íñigo Isern-de-Vala,b,
, Saray Antón Juarrosa, Marta Malingre Gajinoa, Héctor Mercado Castilloa, Irene Orduna Caslaa, Raquel Lorenzo Álvareza, Lidia Serrano Martíneza, Juan José Araiz Burdioa,b
a Intensive Care Unit, University Hospital Lozano Blesa, Zaragoza, Spain
b GIE of Critics, Health Research Institute of Aragon (IIS Aragón), Zaragoza, Spain
Received 28 September 2024. Accepted 03 July 2025
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Table 1. Articles included in the meta-analysis.
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Abstract
Objective

Angiotensin II (ATII) was approved for distributive shock in Spain (2023). The objective is to assess the experience with ATII by comparing a meta-analysis (MTA) and 4 Artificial Intelligence (AI) tools.

Design

A search was conducted in Pubmed®, Central®, Embase®, and Scopus®. Randomized clinical trials, non-randomized trials, and observational studies were included. The primary outcome was all-cause mortality. Odds ratios (OR) with 95% confidence intervals (CI) were pooled. Four AI tools were used: Consensus, Perplexity, Elicit, and Scite.

Setting

Intensive care medicine.

Patients or participants

One thousand six hundred and thirty-six studies were identified, with 10 studies included in the MTA.

Interventions

No interventions.

Main variables of interest

Mortality, efficacy, and safety.

Results

ATII shows a trend towards mortality reduction when compared with controls, OR 0.86 (95% CI: 0.60–1.23); this reduction reaches significance in patient subgroups: High Renin Levels, OR 0.45 (95% CI: 0.22−0.93); shock with renal replacement therapy, OR 0.38 (95% CI: 0.17−0.84). ATII is very effective in increasing mean arterial pressure, OR 3.25 (95% CI: 2.24–4.73), without increasing events, OR 0.77 (95% CI: 0.51–1.14). The AI reached the same conclusions, but only 25%–30% of the studies were included in the MTA.

Conclusions

ATII effectively increases blood pressure without side effects and without altering mortality. AI can assist in evaluating clinical evidence.

Keywords:
Angiotensine II
Shock
Sepsis
Resumen
Objetivo

La angiotensina II (ATII) ha sido aprobada para el shock distributivo en España (2023). El objetivo es valorar la experiencia de la ATII comparando: un metanálisis (MTA) y 4 herramientas de inteligencia artificial (IA).

Diseño

Se buscó en Pubmed®, Central®, Embase® y Scopus®. Se incluyeron ensayos clínicos aleatorizados, no aleatorios y estudios observacionales. El resultado principal fue la mortalidad por cualquier causa. Se agruparon las odds ratio (OR) con intervalos de confianza (IC) del 95%. Se usaron 4 herramientas de IA: Consensus, Perplexity, Elicit y Scite.

Ámbito

Medicina intensiva. Validación de herramientas de IA.

Pacientes o participantes

Mil seiscientos treinta y seis estudios, incluyendo en el MTA 10 estudios.

Intervenciones

No realizadas.

Variables de interés principales

Mortalidad, eficacia y seguridad.

Resultados

La ATII presenta una tendencia a disminuir la mortalidad respecto al control, OR 0.86 (IC del 95%: 0.60–1.23); en subgrupos de pacientes esta disminución resulta significativa: Niveles de Renina Alta, OR 0.45 (IC del 95%: 0.22−0.93); shock con reemplazo renal, OR 0.38 (IC del 95%: 0.17−0.84). La ATII es muy efectiva aumentando la presión arterial media, OR 3.25 (IC del 95%: 2.24–4.73), sin incrementar eventos, OR 0.77 (IC del 95%: 0.51–1.14). La IA llega a las mismas conclusiones, pero solo el 25%–30% de los estudios fueron incluidos en el MTA.

Conclusiones

La ATII aumenta la tensión de forma efectiva, sin efectos secundarios y sin modificar la mortalidad. La IA puede ayudar a la evidencia clínica.

Palabras clave:
Angiotensina II
Shock
Sepsis

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