Publications by authors named "N J Hess"

Article Synopsis
  • The UNOS 2018 heart allocation policy prioritizes patients on temporary mechanical circulatory support (tMCS) due to their high risk of mortality while waiting for a heart transplant.
  • A study analyzed 27,343 adults on the waitlist and found a significant increase in tMCS use from 7.4% to 22.4% after the policy change.
  • Results showed that patients on tMCS had lower waitlist mortality, higher chances of receiving a transplant, and similar one-year mortality rates after transplantation compared to previous trends.
View Article and Find Full Text PDF
Article Synopsis
  • - The study investigates how donor cardiopulmonary resuscitation (CPR) status affects the outcomes of heart transplants from donors after circulatory death (DCD).
  • - An analysis of 683 adult DCD heart transplant recipients showed that those who received donor hearts from CPR donors had similar 1-year survival rates (around 92%) as those from non-CPR donors.
  • - Results indicate that using DCD hearts from donors who underwent CPR can help increase the availability of donor organs without harming initial post-transplant survival rates.
View Article and Find Full Text PDF

Background: This study evaluates the impact of the agonal phase and related hemodynamic measures on post-transplant outcomes and heart utilization in donation after circulatory death (DCD) heart transplantation.

Methods: United Network for Organ Sharing registry was queried to analyze adult recipients who underwent isolated DCD heart transplantation between January 1, 2019 and September 30, 2023. The recipients were stratified into 2 groups based on donor agonal period: <30 and ≥30 minutes.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the occurrence of subcutaneous emphysema (SE) after robotic cardiac surgery, analyzing data from 116 patients who underwent various procedures.
  • SE was found in 45.7% of patients, with most cases being mild; however, severe cases required additional medical intervention like CT scans and chest tubes.
  • Factors such as low body weight, low BMI, small body surface area, and older age are linked to a higher incidence of SE, particularly in those undergoing robotic mitral valve repair compared to other robotic surgeries.
View Article and Find Full Text PDF

Background: This study evaluates the effects of pre-transplant transpulmonary gradient (TPG) and donor right ventricular mass (RVM) on outcomes following heart transplantation.

Methods: UNOS registry was queried to analyze adult recipients who underwent primary isolated heart transplantation from 1/1/2010 to 12/31/2018. The recipients were dichotomized into 2 groups based on their TPG at the time of transplantation, < 12 and ≥ 12 mmHg.

View Article and Find Full Text PDF