Correlation of Isolated Masked Nocturnal Hypertension with Retinopathy in Diabetic Patients

Authors

  • Hemn Muhammed Mustafa Branch of Clinical Sciences, College of Medicine, University of Sulaimani, Kurdistan Region, Iraq https://orcid.org/0000-0002-1345-7961
  • Taha Othman Mahwi Branch of Clinical Sciences, College of Medicine, University of Sulaimani, Kurdistan Region, Iraq https://orcid.org/0000-0001-9477-8814
  • Zagros Ghaffor Rashid Branch of Clinical Sciences, College of Medicine, University of Sulaimani, Kurdistan Region, Iraq https://orcid.org/0009-0000-0678-3112

DOI:

https://doi.org/10.54133/ajms.v11i1.3129

Keywords:

Ambulatory blood pressure monitoring, Diabetes mellitus, Masked nocturnal hypertension, Retinopathy

Abstract

Background: The most common cause of visual impairment in the working-age population is diabetic retinopathy. Hypertension is thought to directly or indirectly cause 35% to 75% of diabetes complications. The prevalence of masked hypertension and masked nocturnal hypertension is higher in diabetic patients. In those who have diabetes mellitus, nocturnal blood pressure appears to be more relevant for the development of diabetic retinopathy. Objective: To assess the relationship between isolated masked nocturnal hypertension and retinopathy in diabetic patients. Methods: An observational case-control study was conducted on 234 individuals with diabetes; 117 of them have retinopathy, while the remaining do not. All patients were assessed for hypertension by measuring blood pressure in the office and through 24-hour ambulatory blood pressure monitoring. Results: Twenty-three percent of all assessed patients had masked hypertension. Isolated masked nocturnal hypertension (IMNH) was detected in 15.4% of those with retinopathy, while it was 6% for those without retinopathy. There was a significant relationship between IMNH and the severity of retinopathy. IMNH was more prevalent in those aged 40 years and older, as well as in overweight and obese patients. Conclusions: The current study indicated that diabetic patients with retinopathy exhibited a higher prevalence of masked nocturnal hypertension than those without retinopathy. This result could indicate that masked nocturnal hypertension plays a contributory role in the development of retinopathy.

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Published

2026-07-28

How to Cite

Mustafa, H. M., Mahwi, T. O., & Rashid , Z. G. (2026). Correlation of Isolated Masked Nocturnal Hypertension with Retinopathy in Diabetic Patients. Al-Rafidain Journal of Medical Sciences ( ISSN 2789-3219 ), 11(1), 185–191. https://doi.org/10.54133/ajms.v11i1.3129

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