RESUMO
INTRODUCTION: Splenectomy has been used as a diagnostic and therapeutic tool in the management of hematological diseases for many years. However, the emergence of new medical therapies has modified guidelines for many hematological diseases for which splenectomy was previously considered. We aimed to evaluate the evidence of a decrease in the hematological indications for splenectomy and the reasons and justifications for this change. MATERIAL AND METHODS: We conducted a single-center, retrospective analysis of patients who underwent laparoscopic splenectomy for hematological disease between January 2010 and December 2023. Patients were classified into four groups: 1 autoimmune and hemolytic diseases (HAD), (2) lymphomas, (3) myeloproliferative diseases (MPN), and (4) other splenic diseases. We recorded the annual incidence of splenectomy and the ratio of new medical cases, demographic and clinical data and surgical outcomes. RESULTS: During the study period, 98 patients were referred for splenectomy. There was a significant progressive decrease in this surgical indication, particularly regarding HAD (p < 0.001). The indication for splenectomy for immune thrombocytopenic purpura (ITP) declined to zero despite an increase in the number of patients diagnosed with this disorder (p < 0.001). The pattern of decrease in AHAI and Evans syndrome was similar to that in ITP. The group of splenectomies due to lymphoma persisted consistently during the study period, as did the indication for splenectomy in the context of lymphoma treatment. Splenectomy due to massive splenomegaly secondary to MPN was indicated only in one patient. Splenectomies due to other causes were similarly distributed over the years. CONCLUSIONS: Our findings confirm a significant decrease in the indication for elective surgery for hematological diseases, mainly regarding autoimmune disease. The surgical community and surgical departments should be aware of this situation yet maintain the skills to adopt this technique both safely and efficiently.
RESUMO
INTRODUCTION: Single parathyroid adenomas are the most common cause of primary hyperparathyroidism (PHP) in our population. Parathyroidectomy is still the only potentially curative treatment and requires preoperative localization imaging studies to perform selective surgery. In patients with negative results on conventional tests, PET/CT has demonstrated higher sensitivity rates. METHODS: A prospective cohort study was designed, including 34 patients diagnosed with PHP between 2017 and 2019, candidates for surgery with negative preoperative localization tests with scintigraphy and MIBI SPECT/CT. All patients underwent PET/CT with 18F-Fluorocholine. The clinical, biochemical and postoperative outcome results were compared with a control group of 30 patients with positive standard tests. RESULTS: Hyperfunctional parathyroid tissue was detected in 85% of the patients that had undergone choline PET/CT. The selective resection of the adenoma identified in these patients achieved curative criteria in 87% of the cases without undergoing bilateral cervical surgical exploration. The preoperative levels of PTH, calcemia and gland weight were significantly lower in this group compared to the control group. No differences were identified in cure criteria or approach between the 2groups. CONCLUSION: In our study, choline PET/CT showed higher detection rates compared to the gold standard. The increase provides the opportunity to perform unilateral selected adenoma resection, especially in patients with smaller adenomas associated with lower calcemia and PTH levels and patients with previous cervical surgery.