Evaluation of Hematoma Formation after Thyroidectomy Surgery and Its Related Factors.

Background: In the last decade, the number of patients undergoing thyroidectomy has increased. Compared to other methods, thyroidectomy is a relatively safe method for treating various types of thyroid diseases. However, the blood flow rate in the thyroid gland is high, and hematoma after thyroidectomy is one of its complications. We aimed to evaluate hematoma after thyroidectomy and its related factors.

Methods: In this retrospective study, 2320 patients over 20 years of age who underwent thyroidectomy in Imam Khomeini, Arvand, and Mehr Ahvaz hospitals, Khuzestan Province, southern Iran between 2011 and 2022 were enrolled. Data were analyzed using SPSS software, version 22.

Results: 70.7% of the patients were in the age range of 20-50 years. Twenty-five (1.1%) of patients developed a hematoma after thyroidectomy. Males are more likely to hematoma after surgery (P=0.01). Hematoma was significantly higher in patients with a history of hypertension (P=0.001). Moreover, a significant association was found between male gender, and age over 50 years with the risk of hematoma (P<0.05). The incidence of hematoma had a statistically remarkable correlation with follicular thyroid cancer pathology (P=0.001). Other pathology diagnoses were not significantly related to hematoma formation after thyroidectomy.

Conclusions: Hematoma after thyroidectomy surgery is a rare, but dangerous and life-threatening complication. It is important to identify risk factors for hematoma formation.