Publications by authors named "Alejandro Portillo"
Objectives: To describe the incidence of pulmonary arteriovenous malformations (PAVM)-related complications, right-to-left shunt (RLS) progression at transthoracic contrast echocardiography (TTCE) and development of treatable PAVM during long-term follow-up in hereditary hemorrhagic telangiectasia (HHT) patients with RLS grades 0-1 at screening TTCE.
Methods: Observational prospective study including adult HHT patients with grades 0-1 RLS at screening TTCE. Those requiring previous embolization of PAVM were excluded.
Mercury (Hg) endangers human and wildlife health globally, primarily due to its release from artisanal small-scale gold mining (ASGM). During gold extraction, Hg is emitted into the environment and converted to highly toxic methylmercury by microorganisms. In Madre de Dios (MDD), Peru, ASGM dominates the economy and has transformed rainforests into expansive deforested areas punctuated by abandoned mining ponds.
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- This study analyzed the occurrence of acute infectious supraglottitis at a medical center from 2010 to 2020, aiming to identify patient characteristics, trends, and factors requiring airway interventions.
- A total of 88 patients were examined, showing a 9% annual increase in cases, particularly rising in 2019, with common symptoms including muffled voice and respiratory distress; 17% of patients needed airway interventions such as intubation or tracheotomy.
- Key findings suggested that younger patients and those with specific conditions like epiglottic abscess, hypersalivation, and smoking were more likely to require airway management, although the impact of the COVID-19 pandemic complic
Purpose: Analyse the evolution and outcomes of COVID-19 tracheostomised patients. Clarify if this cohort presents an increased risk of haemorrhagic complications and verify the correlation between some risk factors with increased mortality.
Methods: A retrospective single-centre observational study of a prospective cohort of all COVID-19 patients admitted to our centre between March and April 2020.
In the southeastern Peruvian Amazon, artisanal and small-scale gold mining (ASGM) is estimated to have released up to 300 tonnes of mercury (Hg) to the environment between 1995 and 2007 alone, and is claimed to be responsible for Hg concentrations above international thresholds for aquatic wildlife species. Here, we examined whether Hg concentrations in bat populations are potentially related to regional ASGM-Hg releases. We determined Hg concentrations in the fur of bats collected at three different distances from the major ASGM areas in Peru.
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