Complete Heart Block as a Clinical Feature in Critically Ill Coronavirus Disease 2019 (COVID-19) Patients: A Case Series of Three Cases.

. Novel coronavirus-19 disease (COVID-19) is associated with significant cardiovascular morbidity and mortality. However, there have been very few reports on complete heart block (CHB) associated with COVID-19.

Atrial septal defect coexistent with Sjögren's syndrome.

Pulmonary hypertension is frequently associated with atrial septal defect and various connective tissue disorders. This case describes a 74-year-old woman who presented with symptoms of heart failure and concomitant involvement of salivary glands and keratoconjunctivitis. An echocardiogram demonstrated ostium secundum atrial septal defect with left to right shunt and severe pulmonary hypertension.

The application of glucose biosensor in studying the effects of insulin and anti-hypertensive drugs towards glucose level in brain striatum.

The mechanisms involving insulin and anti-hypertensive drugs regulation for in vivo cerebral glucose metabolism are not well-understood. This might be due to lack of direct means of measuring cerebral glucose. It is known that the continuous delivery of glucose to the brain is critical for its normal metabolic function.

Minimizing tissue-material interaction in microsensor for subcutaneous glucose monitoring.

A new implantable electrocatalytic glucose sensor for subcutaneous glucose monitoring has been fabricated by immobilizing glucose oxidase on a chemically modified carbon fiber. The sensor was inserted subcutaneously on a male spraguely rat without any incision after dipping the microsensor in the rat's serum for 3 days. The so called "stained" microsensor, operated in the amperometric mode with an applied potential of +0.