Factors associated with adverse outcomes from cardiovascular events in the kidney transplant population: an analysis of national discharge data, hospital characteristics, and process measures

Age-modified risk factors for mortality of non-elderly adult kidney transplant recipients: a retrospective database analysis

PURPOSE

We aimed to investigate the role of the recipient's age strata in modifying the associations between risk factors and mortality in non-elderly adult kidney transplant (KT) recipients (KTR).

METHODS

We stratified 108,695 adult KTRs between 2000 and 2016 with conditional 1-year survival after KT into cohorts based on age at transplant: 18-49 years and 50-64 years. We excluded KTRs aged < 18 years or > / = 65 years. KTRs were observed for 5 years during the 2nd through 6th years post-KT for the outcome, all-cause mortality.

RESULTS

Increasing recipient age strata (18-49-year-old and 50-64-year-old) correlated with decreasing 6-year post-KT survival rates conditional on 1-year survival (79% and 57%, respectively, p < 0.0001). Middle adult age stratum was associated with a higher risk of all-cause mortality than young adult age stratum in KTRs of Hispanic/Latino and other races [HR = 1.23, 95% CI = 1.04-1.45 and HR = 1.51, 95% CI = 1.16-1.97, respectively] and with a primary native renal diagnosis of hypertension or glomerulonephritis [HR = 1.32, 95% CI = 1.12-1.55 and HR = 1.29, 95% CI = 1.10-151, respectively]. When compared with the young adult age stratum, the middle adult age stratum had a mitigating effect on the higher risk of mortality associated with sirolimus-mycophenolate or sirolimus-tacrolimus than the standard calcineurin inhibitor-mycophenolate regimen [HR = 0.75, 95% CI = 0.57-0.99 and HR = 0.71, 95% CI = 0.57-0.89, respectively].

CONCLUSION

Among adult non-elderly KTRs, the age strata, 18-49 years, and 50-64 years, have varying modifying effects on the strength and direction of associations between some specific risk factors and all-cause mortality.

Successful rescue of renal transplantation with cardiac arrest after electrical storm: A case report

RATIONALE

Most patients with end-stage chronic kidney disease are associated with complications such as renal hypertension, renal anemia, hyperkalemia, water-sodium retention, and disorders of acid-base balance after long-term renal replacement therapy, which can lead to increased cardiac burden, some degree of myocardial damage, and finally progress to arrhythmia and heart failure. These are the main reasons why patients with chronic kidney disease are prone to cardiovascular events after renal transplantation.

PATIENT CONCERNS

We report a case of sudden onset of ventricular fibrillation on the postoperative second day, with repeated electrical storm accompanied by cardiac arrest during resuscitation, a very long cardiopulmonary resuscitation (CPR) process of 5 hours and 14 minutes, and >20 cycles of cardiac defibrillation.

DIAGNOSES

According to the patient history and resuscitation process, a diagnosis of ES with cardiac arrest after renal transplantation was formulated.

INTERVENTION

According to the American Heart Association guidelines for CPR and cardiovascular emergencies, resuscitation measures such as CPR, tracheal intubation, electric defibrillation, symptomatic medication, etc. were performed on the patient.

OUTCOMES

Finally, the patient was successfully resuscitated, after which the patient had stable respiratory circulation and no neurological complications. To our knowledge, this is the only reported case in which a patient survived with good neurologic outcomes after a resuscitation that lasted as long as 5 hours and 14 minutes.

LESSONS

This case of adequate resuscitation can provide experience and a basis for CPR of patients with in-hospital complications of cardiovascular events for a long time.

Outcomes and Health Care Utilization After Early Hospital Dismissal in Kidney Transplantation: An Analysis of 1001 Consecutive Cases

OBJECTIVE

To understand whether reduced lengths of stay after kidney transplantation were associated with excess health care utilization in the first 90 days or long-term graft and patient survival outcomes.

BACKGROUND

Reducing length of stay after kidney transplant has an unknown effect on post-transplant health care utilization. We studied this association in a cohort of 1001 consecutive kidney transplants.

METHODS

We retrospectively reviewed 2011-2015 data from a prospectively-maintained kidney transplant database from a single center.

RESULTS

A total of 1001 patients underwent kidney transplant, and were dismissed from the hospital in 3 groups: Early [≤2 days] (19.8%), Normal [3-7 days] (79.4%) and Late [>7 days] (3.8%). 34.8% of patients had living donor transplants (Early 51%, Normal 31.4%, Late 18.4%, P < 0.001). Early patients had lower delayed graft function rates (Early 19.2%, Normal 32%, Late73.7%, P = 0.001). By the hospital dismissal group, there were no differences in readmissions or emergency room visits at 30 or 90 days. Glomerular filtration rate at 12 months and rates of biopsy-proven acute rejection were also similar between groups. The timing of hospital dismissal was not associated with the risk-adjusted likelihood of readmission. Early and Normal patients had similar graft and patient survival. Late dismissal patients, who had higher rates of cardiovascular complications, had significantly higher late mortality versus Normal dismissal patients in unadjusted and risk-adjusted models.

CONCLUSION

Dismissing patients from the hospital 2 days after kidney transplant is safe, feasible, and improves value. It is not associated with excess health care utilization or worse short or long-term transplant outcomes.

Kidney and pancreas transplant recipients undergoing cholecystectomy experience superior outcomes in transplant centers

BACKGROUND

This retrospective analysis aims to identify differences in surgical outcomes between pancreas and/or kidney transplant recipients and the general population undergoing cholecystectomy.

METHODS

Multivariate logistic regression and linear regression tests computed odds ratios (OR) and coefficients of the linear regression by analyzing weighted data from the NIS database between 2005 and 2014 to identify differences in mortality, morbidity, length of stay (LOS) and costs amongst KTx, PTx, PKTx, and non-Tx undergoing cholecystectomy in all centers and transplant centers.

RESULTS

Overall 6007 KTx, 164 PTx, 535 PKTx, and 4,207,241 non-Tx met the inclusion criteria. Mortality from cholecystectomy was 1.0%. Transplant recipients did not experience a significant increase in mortality. However KTx and PTx suffered increased morbidity risks (KTx OR1.244 p < 0.01; PTx OR2.165 p < 0.01) compared to non-Tx. However transplant recipients did not incur an increased morbidity risk in transplant centers.

CONCLUSION

Transplant recipients undergoing cholecystectomy should be counseled about their increased complication risks. Surgeons should consider transferring KTx and PTx to transplant centers for their cholecystectomy procedure to mitigate these risks.