[Assessment of two frailty scales for the preoperative period]. / Fragilidad: en busca de herramientas de evaluación preoperatoria.

BACKGROUND: In the perioperative context, a frailty evaluation scale must consider certain characteristics such as validation, execution speed, simplicity, the capacity to measure multiple dimensions and not being dependent on a cognitive or physical test that could not be performed prior to surgery. The test should select patients that could benefit from interventions aimed to improve their postoperative outcomes. AIM: To validate two frailty evaluation scales for the perioperative period. MATERIAL AND METHODS: The Risk Analysis Index with local modifications (RAI-M) were applied to 201 patients aged 73 ± 7 years (49% women) and the Edmonton frailty scale were applied in 151 patients aged 73 ± 7 years (49% women) in the preoperative period. Their results were compared with the Rockwood frailty index. RESULTS: The Edmonton frail scale showed adequate psychometric properties and assessed multiple dimensions through 8 of the 11 original questions, achieving a discrimination power over 80% compared to the Rockwood Index. The RAI- M, demonstrated solid psychometric properties with a tool that examines 4 dimensions of frailty through 15 questions and reviewing the presence of 11 medical comorbidities. This scale had a discrimination power greater than 85% and it was significantly associated with prolongation of the planned hospital stay and mortality. CONCLUSIONS: RAI-M is a short and easily administered scale, useful to detect frailty in the preoperative period.

Fragilidad: en busca de herramientas de evaluación preoperatoria / Assessment of two frailty scales for the preoperative period

Background: In the perioperative context, a frailty evaluation scale must consider certain characteristics such as validation, execution speed, simplicity, the capacity to measure multiple dimensions and not being dependent on a cognitive or physical test that could not be performed prior to surgery. The test should select patients that could benefit from interventions aimed to improve their postoperative outcomes. Aim: To validate two frailty evaluation scales for the perioperative period. Material and Methods: The Risk Analysis Index with local modifications (RAI-M) were applied to 201 patients aged 73 ± 7 years (49% women) and the Edmonton frailty scale were applied in 151 patients aged 73 ± 7 years (49% women) in the preoperative period. Their results were compared with the Rockwood frailty index. Results: The Edmonton frail scale showed adequate psychometric properties and assessed multiple dimensions through 8 of the 11 original questions, achieving a discrimination power over 80% compared to the Rockwood Index. The RAI- M, demonstrated solid psychometric properties with a tool that examines 4 dimensions of frailty through 15 questions and reviewing the presence of 11 medical comorbidities. This scale had a discrimination power greater than 85% and it was significantly associated with prolongation of the planned hospital stay and mortality. Conclusions: RAI-M is a short and easily administered scale, useful to detect frailty in the preoperative period.

Rauwolfia cubana ADC. Estudio fitoquímico preliminar de las hojas / ADC Cuban Rauwolfia. A preliminary phytochemical study of leaves

Se comienza el estudio fitoquímico de las hojas de Rauwolfia cubana colectada en la región de Cajío, La Habana, analizando comparativamente dos métodos generales para preparar alcaloides totales y fracciones parciales, así como el contenido relativo de alcaloides en las mismas, por métodos de valoración. Se aísla y caracteriza espectroscópicamente la aricina como el componente principal; además se aísla un componente de las bases fuertes que coincide en CCD con un patrón de ajmalina(AU)