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Digital Home-Monitoring of Patients after Kidney Transplantation: The MACCS Platform
Published on: April 12, 2021
Spectrum of hypertension in post transplant
1Department of Nephrology & Biostatistics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow.
Insights
Post-transplant hypertension is common, affecting 86.2% of patients. Risk factors include older age, male sex, and immunosuppressants like cyclosporine, impacting patient and graft survival.
Area of Science:
- Nephrology
- Transplant Surgery
- Cardiovascular Medicine
Background:
- Post-transplant hypertension is a frequent complication following renal transplantation.
- Identifying risk factors is crucial for improving patient and graft outcomes.
Purpose of the Study:
- To determine the incidence and causes of post-transplant hypertension in a renal transplant population.
- To analyze the impact of hypertension on patient and graft survival.
Main Methods:
- A retrospective study of renal transplant recipients between June 1989 and December 2002.
- Hypertension defined as BP ≥ 140/90 mmHg or antihypertensive medication use.
- Analysis of donor and recipient characteristics, including immunosuppressive regimens.
Main Results:
- The incidence of post-transplant hypertension was 86.2%.
- Independent risk factors identified were age ≥ 40 years, male sex, graft dysfunction, calcineurin inhibitors (cyclosporine), high-dose steroids, and chronic rejection.
- Post-transplant hypertension was associated with inferior patient and graft survival. Elevated blood pressure at 6 and 12 months negatively impacted graft survival.
Conclusions:
- Age, male sex, and specific immunosuppressive agents are significant risk factors for post-transplant hypertension.
- Aggressive management of post-transplant hypertension and its modifiable risk factors is essential for enhancing renal allograft and patient survival.
Aim:
Elucidate the incidence and causes of post transplant hypertension in our transplant population.
Methods:
All patients transplanted between June 1989 Dec 2002 who had a functioning graft of 6 months post transplant were studied. Hypertension was defined as Systolic BP > or = 140 mmHg/Diastolic BP > or = 90 mmHg/usage of antihypertensive medication. Donor and recepient characteristics were recorded and compared. 86.2% (485) were hypertensive in post renal transplant period.
Results:
Age > or = 40 years, male sex, graft dysfunction, use of calcineurin inhibitors, high doses of steroids, chronic rejection were statistically significant correlate of post RTHT in univariate analysis. On multivariate analysis, age > or = 40 yrs (RR 2.06, 95% CI, 1.20-3.54), use of cyclosporine (RR 2.70, 95% CI, 1.54-4.75), usage of high doses of steroids (RR 2.56, 95% CI, 1.31-4.98) only were associated with post transplant hypertension. The patient and graft survival was inferior in patients with post transplant hypertension. The systolic BP at 12 months, diastolic BP at 6 months and 12 months post transplant, had significant detrimental effect on renal allografts survival.
Conclusion:
Diagnosis, identification of risk factors and aggressive treatment of post transplant HT and of the various modifiable risk factors is important for improving renal allograft and patient survival.
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