Orlando Rubén Pérez-Nieto

Dr. Orlando Rubén Pérez-Nieto

orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 July 2021 in European Respiratory Journal
Verified
Journal Article
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OPOrlando Rubén Pérez-Nieto
Orlando Rubén Pérez-Nieto
DMDiego Escarraman Martinez
Diego Escarraman Martinez
MGManuel A. Guerrero-Gutierrez
Manuel A. Guerrero-Gutierrez
EZEder I. Zamarron-Lopez
Eder I. Zamarron-Lopez
Javier Mancilla-GalindoJavier Mancilla-Galindo
Javier Mancilla-Galindo
SÑSilvio A. Ñamendys-Silva
Silvio A. Ñamendys-Silva
Background: The awake prone positioning strategy for patients with acute respiratory distress syndrome is a safe, simple and cost-effective technique used to improve hypoxaemia. We aimed to evaluate intubation and mortality risk in patients with coronavirus disease 2019 (COVID-19) who underwent awake prone positioning during hospitalisation.Methods: In this retrospective, multicentre observational study conducted between 1 May 2020 and 12 June 2020 in 27 hospitals in Mexico and Ecuador, nonintubated patients with COVID-19 managed with awake prone or awake supine positioning were included to evaluate intubation and mortality risk through logistic regression models; multivariable and centre adjustment, propensity score analyses, and E-values were calculated to limit confounding.Results: 827 nonintubated patients with COVID-19 in the awake prone (n=505) and awake supine (n=322) groups were included for analysis. Fewer patients in the awake prone group required endotracheal intubation (23.6%versus40.4%) or died (19.8%versus37.3%). Awake prone positioning was a protective factor for intubation even after multivariable adjustment (OR 0.35, 95% CI 0.24–0.52; p<0.0001, E=2.12), which prevailed after propensity score analysis (OR 0.41, 95% CI 0.27–0.62; p<0.0001, E=1.86) and mortality (adjusted OR 0.38, 95% CI 0.26–0.55; p<0.0001, E=2.03). The main variables associated with intubation among awake prone patients were increasing age, lower baseline peripheral arterial oxygen saturation/inspiratory oxygen fraction ratio (PaO2/FIO2) and management with a nonrebreather mask.Conclusions: Awake prone positioning in hospitalised nonintubated patients with COVID-19 is associated with a lower risk of intubation and mortality.

13 April 2021 in Anaesthesiology Intensive Therapy
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OPOrlando Rubén Pérez-Nieto
Orlando Rubén Pérez-Nieto
AWAdrian Wong
Adrian Wong
JFJorge Lopez Fermin
Jorge Lopez Fermin
ELEder I. Zamarron Lopez
Eder I. Zamarron Lopez
JAJose A. Meade Aguilar
Jose A. Meade Aguilar
MMManu L.N.G. Malbrain
Manu L.N.G. Malbrain
Critically ill patients are often presumed to be in a state of “constant dehydration” or in need of fluid, thereby justifying a continuous infusion with some form of intravenous (IV) fluid, despite their clinical data suggesting otherwise. Overzealous fluid administration and subsequent fluid accumulation and overload are associated with poorer outcomes. Fluids are drugs, and their use should be tailored to meet the patient’s individualized needs; fluids should never be given as routine maintenance unless indicated. Before prescribing any fluids, the physician should consider the patient’s characteristics and the nature of the illness, and assess the risks and benefits of fluid therapy. Decisions regarding fluid therapy present a daily challenge in many hospital departments: emergency rooms, regular wards, operating rooms, and intensive care units. Traditional fluid prescription is full of paradigms and unnecessary routines as well as malpractice in the form of choosing the wrong solutions for maintenance or not meeting daily requirements. Prescribing maintenance fluids for patients on oral intake will lead to fluid creep and fluid overload. Fluid overload, defined as a 10% increase in cumulative fluid balance from baseline weight, is an independent predictor for morbidity and mortality, and thus hospital cost. In the last decade, increasing evidence has emerged supporting a restrictive fluid approach. In this manuscript, we aim to provide a pragmatic description of novel concepts related to the use of IV fluids in critically ill patients, with emphasis on the different indications and common clinical scenarios. We also discuss active deresuscitation, or the timely cessation of fluid administration, with the intention of achieving a zero cumulative fluid balance.

24 March 2022 in Pulmonology
Verified
Journal Article
Open access
AGAdrian Gallardo
Adrian Gallardo
EZE. Zamarrón-López
E. Zamarrón-López
EDE. Deloya-Tomas
E. Deloya-Tomas
OPOrlando Rubén Pérez-Nieto
Orlando Rubén Pérez-Nieto

17 May 2021 in Expert Review of Respiratory Medicine
Verified
Journal Article
Closed access
JDJesús Salvador Sánchez Díaz
Jesús Salvador Sánchez Díaz
KMKarla Gabriela Peniche Moguel
Karla Gabriela Peniche Moguel
EEEduardo Alberto González Escudero
Eduardo Alberto González Escudero
LCLuis Del Carpio-Orantes
Luis Del Carpio-Orantes
EZEnrique Monares Zepeda
Enrique Monares Zepeda
MGManuel Alberto Guerrero Gutierrez
Manuel Alberto Guerrero Gutierrez
Determine whether the levels of glycated hemoglobin (HbA1c) measured on admission to the intensive care unit (ICU) are associated with mortality in patients with severe SARS-CoV-2 pneumonia with invasive mechanical ventilation. Cohort study, retrospective, observational. A single center. ICU of a second-level care hospital. Severe SARS-CoV-2 pneumonia confirmed with IMV since admission to the ICU. none. A total of 56 patients with severe pneumonia, confirmed with SARS-CoV-2, all with IMV. The group with HbA1c 500 U/L, OR 3.65 (95% CI 1.18–11.29), HbA1c ≥6.5%, OR 3.12 (95% CI 1.01–9.6), SAH, OR 3.12 (95% CI 1.01–9.5), use of vasopressor, OR 0.2 (95% CI 0.05–0.73), diabetes was not statistically significant. The 28-day probability of survival in patients with severe SARS-CoV-2 pneumonia with IMV in the ICU is lower when the HbA1c level is ≥6.5% on admission.

18 September 2023 in Clinical Infectious Diseases
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MPMarian Elizabeth Phinder-Puente
Marian Elizabeth Phinder-Puente
OPOrlando Rubén Pérez-Nieto
Orlando Rubén Pérez-Nieto
TMTania Olga Mondragón-Labelle
Tania Olga Mondragón-Labelle
EPEdgar Pérez-Barragán
Edgar Pérez-Barragán
LMLeonardo Soto Muñoz
Leonardo Soto Muñoz
EDErnesto Deloya-Tomas
Ernesto Deloya-Tomas
Marian Elizabeth Phinder-Puente, Orlando Rubén Pérez-Nieto, Tania Olga Mondragón-Labelle, Edgar Pérez-Barragán, Leonardo Soto Muñoz, Ernesto Deloya-Tomas; Consi

17 June 2025 in Anesthesiology and Perioperative Science
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Journal Article
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DCDaniela Cuéllar-Mendoza
Daniela Cuéllar-Mendoza
OPOrlando Rubén Pérez-Nieto
Orlando Rubén Pérez-Nieto
GBGabriela A. Bautista-Aguilar
Gabriela A. Bautista-Aguilar
DTDavid A. Trejo-Osornio
David A. Trejo-Osornio
CZCarlos A. Zamorano-León
Carlos A. Zamorano-León
MPMarian Elizabeth Phinder-Puente
Marian Elizabeth Phinder-Puente