SARS-CoV-2 has caused the COVID-19 pandemic. B.1.617 variants (including Kappa and Delta) have been transmitted rapidly in India. The transmissibility, pathogenicity, and neutralization characteristics of these variants have received considerable interest. In this study, 22 pseudotyped viruses were constructed for B.1.617 variants and their corresponding single amino acid mutations. B.1.617 variants did not exhibit significant enhanced infectivity in human cells, but mutations T478K and E484Q in the receptor binding domain led to enhanced infectivity in mouse ACE2-overexpressing cells. Furin activities were slightly increased against B.1.617 variants and cell-cell fusion after infection of B.1.617 variants were enhanced. Furthermore, B.1.617 variants escaped neutralization by several mAbs, mainly because of mutations L452R, T478K, and E484Q in the receptor binding domain. The neutralization activities of sera from convalescent patients, inactivated vaccine-immunized volunteers, adenovirus vaccine-immunized volunteers, and SARS-CoV-2 immunized animals against pseudotyped B.1.617 variants were reduced by approximately twofold, compared with the D614G variant.
Objectives: Surgical patients and their families experience high rates of perioperative anxiety, which determine a negative impact on their surgery-related outcomes. Understanding what communicational aspects positively impact perioperative anxiety may help promote more efficient, patient-centered communication approaches which could address this issue. The aim of this scoping review was to synthesize published research on communication between surgical employees and adult patients and their relatives, and its role in managing perioperative anxiety.
Methods: A scoping review approach was used across four international databases to search for publications detailing communicational interventions and approaches employed in surgical contexts and their impact on surgical patients' and their caregivers' perioperative anxiety levels. Results were narratively synthesized.
Results: Twenty-two studies were included in this scoping review, which were grouped according to their communication intervention into one of five categories: technology-assisted interventions, interpersonal communication, educational programs, tools for facilitating exchange of information and theory-derived communication strategies. Records reported mixed results in terms of reducing perioperative anxiety. Facilitating and hindering factors in interpersonal communication in this context were further synthesized.
Conclusion: A multitude of communicational approaches and their effect on anxiety have been investigated within surgical settings, with varying results. Existing evidence suggests that it is vital to address surgical patients' anxiety through personalized empathetic communication, tailored to an individual's case, preferences, and needs. Key aspects of patient-healthcare professional communication which may impact perioperative anxiety were identified and may be utilized in future trainings for communication skills among surgical teams.