Luis Salazar

Dr. Luis Salazar

Asociación de Salud Integral
orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

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

Representative Publications

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1 April 2021 in Journal of Fungi
Verified
Journal Article
Open access
PDF file
NMNarda Medina
Narda Medina
Ana Alastruey-IzquierdoAna Alastruey-Izquierdo
Ana Alastruey-Izquierdo
Oscar BonillaOscar Bonilla
Oscar Bonilla
OGOsmar Gamboa
Osmar Gamboa
DMDanicela Mercado
Danicela Mercado
JRJuan Luis Rodriguez-Tudela
Juan Luis Rodriguez-Tudela
Opportunistic infections (OIs) and advanced HIV disease (AHD) contribute to HIV-related mortality. Here, we analyzed the situation of AHD and OIs in a cohort of newly diagnosed HIV patients from Guatemala. We included 2127 adult patients from 13 facilities across the country during 2017 to 2018. Patients were screened for tuberculosis (TB), nontuberculous mycobacteria (NTM), histoplasmosis, and cryptococcal disease, independently of their CD4 cell count. Of the 2127 enrolled patients, 1682 (79.1%) had a CD4 cell count available; of which 52% presented with AHD. Of the Mayan population, 65% had AHD. The overall OI incidence was 21%. Histoplasmosis was the most frequent OI (7.9%), followed by TB (7.1%); 94.4% of these infections occurred in patients with a CD4 < 350 cells/mm3. Mortality at 180 days was significantly higher in those with OIs than without OIs (29.7% vs. 5.9%, p < 0.0001). In one year, this program decreased the OI mortality by 7% and increased the OI treatment by 5.1%. Early OI diagnosis and appropriate therapy reduced OI mortality among newly diagnosed HIV patients in Guatemala. Screening for OIs should be considered in all newly diagnosed HIV patients who have a CD4 cell count < 350 cells/mm3 or those without a CD4 cell count available. To improve results, interventions such as early HIV detection and access to flucytosine and liposomal amphotericin B are required.

1 July 2021 in International Journal of Infectious Diseases
Verified
Journal Article
Open access
NMNarda Medina
Narda Medina
Ana Alastruey-IzquierdoAna Alastruey-Izquierdo
Ana Alastruey-Izquierdo
Oscar BonillaOscar Bonilla
Oscar Bonilla
BOBrenan Ortíz
Brenan Ortíz
OGOsmar Gamboa
Osmar Gamboa
BGBrenda Guzmán
Brenda Guzmán
To describe the impact of the coronavirus disease 2019 (COVID-19) pandemic on the diagnosis of human immunodeficiency virus (HIV) and deaths from opportunistic infections in Guatemala. A retrospective study was conducted to investigate the impact of the COVID-19 pandemic on people with HIV at a referral clinic (Clinica Familiar Luis Angel García, CFLAG), as well as the disruption of services at a diagnostic laboratory hub (DLH) which provides diagnosis for opportunistic infections to a network of 13 HIV healthcare facilities. Comparative analysis was undertaken using the months March–August from two different time periods: (i) pre-COVID-19 (2017–2019); and (ii) during the COVID-19 period (2020). During the COVID-19 period, 7360 HIV tests were performed at Clinica Familiar Luis Angel García, compared with an average of 16,218 tests in the pre-COVID-19 period; a reduction of 54.7% [95% confidence interval (CI) 53.8–55.4%],Deaths from opportunistic infections at 90 days were 10.7% higher in 2020 compared with 2019 (27.3% vs 16.6%; P = 0.05). Clinical samples sent to the DLH for diagnosis of opportunistic infections decreased by 43.7% in 2020 (95% CI 41.0–46.2%). The COVID-19 pandemic is having a substantial impact on HIV care in Guatemala. Diagnostic services for HIV have been severely affected and deaths from opportunistic infections have increased. The lessons learnt must guide the introduction of strategies to reduce the impact of the pandemic.

16 December 2021 in Microorganisms
Verified
Journal Article
Open access
PDF file
NMNarda Medina
Narda Medina
JRJuan Luis Rodriguez-Tudela
Juan Luis Rodriguez-Tudela
LALuis Aguirre
Luis Aguirre
Luis SalazarLuis Salazar
Luis Salazar
OGOsmar Gamboa
Osmar Gamboa
Ana Alastruey-IzquierdoAna Alastruey-Izquierdo
Ana Alastruey-Izquierdo
Among people with HIV, histoplasmosis represents an important cause of mortality. Previous studies provided estimates of the disease incidence. Here, we compared those estimates with the results obtained from a screening program implemented in Guatemala, which included histoplasmosis detection for people with HIV. To compare the results of this program with previous estimations, a literature search was performed and reports concerning histoplasmosis incidence were analyzed. The screening program enrolled 6366 patients. The overall histoplasmosis incidence in the screening program was 7.4%, which was almost double that estimated in previous studies. From 2017 to 2019, the screening program showed an upward trend in histoplasmosis cases from 6.5% to 8.8%. Histoplasmosis overall mortality among those who were newly HIV diagnosed showed a decrease at 180 days from 32.8% in 2017 to 21.2% in 2019. The screening approach using rapid diagnostic assays detects histoplasmosis cases more quickly, allowing a specific treatment to be administered, which decreases the mortality of the disease. Therefore, the use of these new techniques, especially in endemic areas of histoplasmosis, must be implemented.

17 November 2021 in Preprints.org
Verified
Preprint
Open access
NMNarda Medina
Narda Medina
JRJuan Luis Rodriguez-Tudela
Juan Luis Rodriguez-Tudela
LALuis Aguirre
Luis Aguirre
Luis SalazarLuis Salazar
Luis Salazar
OGOsmar Gamboa
Osmar Gamboa
Ana Alastruey-IzquierdoAna Alastruey-Izquierdo
Ana Alastruey-Izquierdo
Among people with HIV, histoplasmosis represents an important cause of mortality. Previous studies have provided estimates of the disease incidence. Here, we compared those estimates with the results obtained from a screening program implemented in Guatemala, which included histoplasmosis detection for people with HIV. To compare the results of this program, with previous estimations, a literature search was done and reports about histoplasmosis incidence were analyzed. The screening program enrolled 6,366 patients. The overall histoplasmosis incidence in the screening program was 7.4%, which was almost double than those estimated by the previous studies. From 2017 to 2019, the screening program showed an upward trend in histoplasmosis cases from 6.5% to 8.8%. Histoplasmosis overall mortality among those who were newly HIV diagnosed showed a decrease at 180 days from 32.8% in 2017 to 21.2% in 2019. The screening approach using rapid diagnostic assays detects quickly more cases of histoplasmosis, allowing a specific treatment, which decreases the mortality of the disease. Therefore, the use of these new techniques, especially in endemic areas of histoplasmosis, must be implemented.