Mode-division multiplexing for visible photonic integrated circuits.

Visible wavelength photonic integrated circuits (PICs) are critical for a wide range of applications including quantum photonics, high-resolution imaging, optogenetics, and portable displays. These applications require functions such as wavefront structuring and dense optical routing on-chip to serve as compact optical interfaces for qubits and cells. The transverse spatial modes of a waveguide can provide the basis for these functions.

The Local Heroes Project: a youth-led pan-India hyperlocal crisis relief model during the COVID-19 pandemic.

Introduction: There was shortage of essential diagnostic and therapeutic supplies in public hospitals during the second wave of COVID-19 in India.

Materials And Methods: The Local Heroes Project, a hyperlocal project initiated by the World Youth Heart Federation (WYHF). Pilot project was conducted in six cities, and a nationwide project was scaled up to 58 city groups with 438 volunteers.

Transhepatic inferior vena cava recanalization in a case of Budd Chiari syndrome: A novel approach.

Sharp recanalization for short-segment intravascular occlusion, using an endovascular route, has been described for inferior vena cava (IVC) occlusion. Often, the technical challenge to the endovascular management of Budd-Chiari syndrome (BCS) is the recanalization of the occluded hepatic vein or suprahepatic IVC. Presented here, the challenge was the level of occlusion of the suprahepatic IVC, with the resultant separation of both the patent IVC segments in a horizontal plane, making it technically challenging for sharp recanalization.

Efficacy of tocilizumab in treatment of COVID-19 pneumonia: A case-control study from a tertiary care hospital.

Background And Objective: Coronavirus disease 2019 (COVID-19) is a viral infectious disease caused by the severe acute respiratory syndrome virus, which has affected billions of people across the globe. The pathogenesis of respiratory inflammation involves elevated concentration of interleukin-6; hence, interventions targeting interleukin-6 receptor, such as tocilizumab (TCZ), have been investigated as potential treatment amidst the dilemma of COVID-19 management. The aim of the study is to analyse the efficacy and safety of TCZ and record the outcome in COVID-19 patients.

Academic Output in Global Surgery after the Lancet Commission on Global Surgery: A Scoping Review.

Background: The Lancet Commission on Global Surgery (LCoGS) published its seminal report in 2015, carving a niche for global surgery academia. Six years after the LCoGS, a scoping review was conducted to see how the term 'global surgery' is characterized by the literature and how it relates to LCoGS and its domains.

Methods: PubMed was searched for publications between January 2015 and February 2021 that used the term 'global surgery' in the title, abstract, or key words or cited the LCoGS.

Assessing the Rates and Reasons of Elective Surgical Cancellations on the Day of Surgery: A Multicentre Study from Urban Indian Hospitals.

Background: Cancellations of elective surgeries on the day of surgery (DOS) can lead to added financial burden and wastage of resources for healthcare facilities; as well as social and emotional problems to patients. These cancellations act as barriers to delivering efficient surgical services. Optimal utilisation of the available resources is necessary for resource-constrained low-and-middle-income countries (LMIC).

Adult cardiac surgical cost variation around the world: .

Introduction: Globally, over one million cardiac operations occur each year, whereas cardiac surgery is expensive and largely inaccessible without insurance or philanthropic support. Substantial cost variation has been reported within cardiac surgery in the United States and among non-cardiac surgical procedures globally, but little is known on the global procedural cost variation for common adult cardiac surgical procedures.

Objectives And Significance: This review seeks to assess variation in procedural costs of coronary artery bypass grafting (CABG), mitral valve repair, mitral valve replacement, aortic valve repair, aortic valve replacement, and combined CABG-mitral or CABG-aortic valve procedures between and within countries.