Is there a relationship between basilar artery tortuosity and vertigo?

The underlying causes of chronic dizziness often remain poorly understood in clinical practice. No prior work had resolved whether specific structural variations in intracranial blood vessels contribute to these balance issues. That uncertainty drove researchers to examine the morphology of major brain arteries. Prior research has shown that vascular aging can alter vessel geometry over time. However, the specific association between vessel curvature and vestibular symptoms lacked clear evidence. This gap motivated a detailed investigation into the relationship between vessel shape and patient complaints. Previous studies frequently focused on systemic conditions rather than isolated vascular anatomy. Understanding these anatomical patterns could improve diagnostic accuracy for patients presenting with unexplained vertigo.

The aim of this study was to investigate the relationship between basilar artery tortuosity, vertebral artery hypogenesis, and vertigo. Researchers sought to determine if specific anatomical variations in intracranial blood vessels correlate with balance disorders. This investigation was motivated by the need to clarify whether vessel geometry contributes to clinical symptoms. The team utilized magnetic resonance imaging to capture detailed anatomical data from a large patient cohort. They intended to compare symptomatic individuals with a control group to identify potential vascular markers. No prior work had resolved the extent to which these structural changes influence patient complaints. That uncertainty drove the researchers to quantify vessel diameter and length in both groups. By analyzing these parameters, the study provides insight into the potential role of vascular anatomy in vertigo.

Review approach involved a case-control design to compare symptomatic patients with healthy control subjects. The team recruited 154 individuals reporting vertigo and 346 asymptomatic participants from outpatient clinics. All subjects underwent evaluation using a 1.5-tesla magnetic resonance imaging system to visualize intracranial vessels. Researchers systematically recorded the presence of vessel twisting, vertebral artery asymmetry, and developmental absence. They calculated the central diameter and longitudinal length of the main brain artery for each participant. The analysis categorized participants by median age to determine if structural differences persisted across different life stages. Statistical comparisons utilized p-values to assess the significance of findings between the two study groups. This approach ensured a controlled examination of anatomical variations in relation to clinical symptoms.

Key findings from the literature indicate that the rate of vessel twisting was significantly higher in patients with vertigo compared to controls. Statistical analysis yielded a p-value of 0.030 for this specific observation. The mean age of the vertigo group was 48.95 years, which was significantly higher than the 45.12 years observed in the control group. When participants were stratified by age, differences in vessel diameter and length remained statistically significant with p-values below 0.001. Individuals identified with vessel tortuosity were consistently older than those without such anatomical findings. These tortuosity-positive subjects also exhibited higher rates of vertebral artery asymmetry or agenesis. Furthermore, vessel diameter and length measurements were significantly increased in the tortuosity-positive group. These results highlight a clear association between age, vascular dimensions, and the presence of vessel curvature.

The authors propose that vertigo and vessel curvature rates appear to rise concurrently with advancing age. Synthesis and implications suggest that vascular dimensions like diameter and length also expand as individuals grow older. The researchers note that these structural changes do not necessarily indicate a direct causal link to vertigo symptoms. Patients exhibiting vessel twisting were observed to be significantly older than those without such anatomical features. These individuals also displayed higher frequencies of vertebral artery asymmetry or developmental absence. The data implies that age-related vascular remodeling is a common phenomenon in clinical populations. Future clinical assessments might consider these morphological variations when evaluating elderly patients with balance complaints. The study highlights the importance of distinguishing between age-related vascular changes and pathological conditions.