Specialist care shows benefits in managing chronic hypoparathyroidism
Real-world study found better treatment results for those seeing endocrinologists
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People with chronic hypoparathyroidism who are treated by endocrinologists — doctors who specialize in hormone-related diseases — are more likely to achieve recommended blood levels of calcium and vitamin D than those not receiving specialist care, a real-world study found.
The researchers noted that these effects were observed despite all patients receiving similar treatment for managing the rare condition.
According to the team, these findings suggest that “the benefits of specialist care may extend beyond pharmacological treatment alone and may reflect more structured monitoring, optimization of conventional therapy, patient education, and systematic assessment of disease related complications.”
The results also “underscore the ongoing challenges of long-term [hypoparathyroidism] management in routine clinical practice,” the scientists noted.
The study, “Real-world management of hypoparathyroidism: the impact of endocrinology specialist follow-up on biochemical and clinical outcomes – a retrospective cohort study,” was published in the journal BMC Endocrine Disorders.
Hypoparathyroidism is characterized by low levels of the parathyroid hormone (PTH), which helps regulate calcium and phosphorus in the body. The resulting imbalances in these minerals can lead to muscle problems and neurological issues, such as brain fog, among an array of symptoms.
In most cases, the disease is temporary. However, some individuals develop chronic hypoparathyroidism, with signs of the disease persisting and, in some patients, worsening.
Little is known about the impact of the treatment setting
Conventional hypoparathyroidism treatment predominantly relies on supplementation with calcium and active forms of vitamin D, which helps the body absorb calcium. The goal is to achieve biochemical control, with blood calcium levels remaining within the low-normal range and phosphorus levels being normalized.
“Recent international guidelines have emphasized individualized and patient-centered management strategies for chronic [hypothyroidism], focusing not only on biochemical control but also on quality of life, symptom burden, long-term complications, and regular monitoring for [coexisting conditions],” the researchers wrote.
However, the team noted, “real-world data on the impact of follow-up setting on biochemical and clinical outcomes [remains] limited.”
To learn more, two researchers in Turkey retrospectively evaluated the electronic medical records of 186 adults living with a hypothyroidism diagnosis for at least three years. All were followed at a single center in Istanbul.
The patients’ mean age was 49.5, and more than three-quarters were women. Most cases — slightly more than 80% — were caused by complications during surgery.
Treatment involved supplements with calcium, vitamin D, and calcitriol, the active form of vitamin D. Overall, 76% of participants achieved target blood calcium levels, defined as values in the lower part of or slightly below the reference range.
Nearly half also reached target blood levels of phosphate (within the normal range; 45.2%) and 25(OH)D, the main circulating form of vitamin D (above 30 nanograms/mL; 46.9%).
Markedly bettering monitoring seen for those receiving specialist care
Altogether, slightly less than half of those with hypoparathyroidism — 82 people, or 44% — were managed in endocrinology clinics. The remaining 56% of patients were followed at other clinical settings, such as internal medicine, surgery, and family medicine centers.
There were no significant differences between these two groups in terms of age, sex, disease duration, or age at diagnosis. Blood levels of phosphate, PTH, and calcium were also comparable between the groups, although there was a trend toward lower blood calcium in patients managed at non-endocrinology settings.
Statistically significant differences were found, however, in the outcomes of patients followed in endocrinology settings versus those who weren’t. Those receiving specialist care had significantly higher blood levels of 25(OH)D (30.5 vs. 26.2 ng/mL). In addition, these patients were significantly more likely to achieve target levels of calcium (96.3% vs. 60.6%), phosphate (53.7% vs. 38.5%), and 25(OH)D (57.3% vs. 29.2%) than those followed at other settings.
These differences were not explained by more intensive treatment, the researchers noted, given that both groups received similar doses of calcium, vitamin D, and calcitriol.
The benefit of specialist care is unlikely to be explained by more intensive pharmacological treatment or aggressive dosing alone. … Rather, it may reflect differences in the quality and structure of disease management.
Instead, the duo suggested that specialist care may improve outcomes through more systematic monitoring, treatment optimization, and closer assessment of disease-related complications.
“The benefit of specialist care is unlikely to be explained by more intensive pharmacological treatment or aggressive dosing alone,” the researchers wrote. “Rather, it may reflect differences in the quality and structure of disease management.”
This was further supported by a marked disparity between the groups in the rates of completeness of guideline-recommended diagnostic monitoring. Patients followed by endocrinologists were significantly more likely to undergo recommended measurements, including urinary calcium, blood 25(OH)D, and surveillance for kidney, eye, bone, and brain complications.
In terms of coexisting conditions, participants followed at nonendocrinology clinics were significantly more likely to have high blood pressure, excess fat in the liver, and cataracts, an eye complication that causes blurred vision. However, researchers noted that a cause-and-effect relationship could not be established.
Statistical analyses adjusted for potential influencing factors showed that follow-up at nonendocrinology settings was significantly associated with lower odds of achieving target calcium levels. In contrast, higher blood 25(OH)D levels were an independent and significant predictor of achieving such levels.
“Collectively, our findings support the integration of endocrinology specialist follow-up as a standard component of long-term [hypoparathyroidism] care,” the researchers wrote. Further studies are needed “to determine whether improved monitoring strategies and emerging treatment approaches can translate into better long-term clinical outcomes,” the team added.
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