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Hypertension is Common in Patients with Newly Diagnosed Acromegaly and is Independently Associated with Renal Resistive Index

  • Hilmi Erdem Sumbul
  • Ayse Selcan Koc
Original Article
  • 8 Downloads

Abstract

Introduction

There are conflicting results regarding the frequency of hypertension (HT) and values of related parameters in patients with acromegaly.

Aim

We aimed to determine the frequency of HT and values of its associated parameters in patients with acromegaly.

Methods

57 patients with newly diagnosed acromegaly were included in this study. Renal ultrasonography (US) was performed in addition to routine evaluation of acromegaly. Renal resistive index (RRI), renal pulsatility index (RPI), and accelerated time were measured using Doppler US.

Results

Hypertension was detected in 16 patients (28.1%) with newly diagnosed acromegaly. Serum triglyceride, TSH, growth hormone, and insulin growth factor 1 levels were higher and HDL levels were lower in acromegaly patients with HT. RRI and RPI values were found to be higher in acromegaly patients with HT. In logistic regression analysis, only the RRI value was found to be independently related to the presence of HT. Based on this analysis, it was determined that the frequency of HT increases 2.99 times for each increase in RRI of 0.05 units. When ROC analysis was performed, it was found that the area under the ROC curve was 0.781. In the same analysis, when the cutoff value for RRI was taken to be 0.70, the development of HT in acromegaly patients was determined with 75% sensitivity and 78% specificity.

Conclusions

In patients with newly diagnosed acromegaly, HT frequency was significantly increased and it was independently associated with the RRI value. Therefore, these patients should be closely monitored for HT—the most frequent and important cardiovascular risk factor—and treated before they develop target organ damage.

Keywords

Acromegaly Hypertension Renal resistive index Renal ultrasonography 

Notes

Compliance with Ethical Standards

Conflict of interest

There is no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

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Copyright information

© Italian Society of Hypertension 2018

Authors and Affiliations

  1. 1.Department of Internal MedicineUniversity of Health Sciences—Adana Health Practice and Research CenterAdanaTurkey
  2. 2.Department of RadiologyUniversity of Health Sciences—Adana Health Practice and Research CenterAdanaTurkey

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