Surgery · 2021
Outcomes of malignant pheochromocytoma based on operative approach: A National Cancer Database analysis.
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Hue Jonathan J, Alvarado Christine, Bachman Katelynn, Wilhelm Scott M, Ammori John B, Towe Christopher W, Rothermel Luke D
Аннотация
BACKGROUND: Malignant pheochromocytoma is often managed with adrenalectomy. Most literature focusing on postoperative outcomes are from single institutions. This study aimed to describe outcomes of adrenalectomy for malignant pheochromocytoma using a national database. We hypothesized that minimally invasive approaches might be associated with improved short-term outcomes but potentially inferior oncologic efficacy.
METHODS: Patients who underwent adrenalectomy for malignant pheochromocytoma were identified in the National Cancer Database (2010-2016). Patients were categorized as minimally invasive adrenalectomy or open adrenalectomy. Short- and long-term outcomes were compared.
RESULTS: A total of 276 patients underwent adrenalectomy for malignant pheochromocytoma: 50.7% open adrenalectomy and 49.3% minimally invasive adrenalectomy. Demographics were similar, except those who underwent open adrenalectomy had larger tumors compared to minimally invasive adrenalectomy (8.2 cm vs 4.7 cm; P < .001). Tumor size ≥6 cm was associated with a reduced likelihood of minimally invasive adrenalectomy (relative to open adrenalectomy) on multivariable regression (odds ratio = 0.23; P < .001). Open adrenalectomy was associated with longer duration of stay relative to minimally invasive adrenalectomy (6 vs 3 days; P < .001). Rates of positive margins, unplanned readmissions, or 30-/90-day mortalities were similar based on operative approach. Five-year survival rates were similar (open adrenalectomy 74.3%, minimally invasive adrenalectomy 79.1%). There was no association between overall survival and operative approach on multivariable Cox analysis when controlling for tumor size, laterality, and clinicodemographic variables.
CONCLUSION: Patients with larger malignant pheochromocytomas were more likely to undergo an open adrenalectomy. With the exception of an increased duration of stay, there was no difference in short- or long-term postoperative outcomes. These data suggest that minimally invasive adrenalectomy appears safe among tumors <6 cm.
METHODS: Patients who underwent adrenalectomy for malignant pheochromocytoma were identified in the National Cancer Database (2010-2016). Patients were categorized as minimally invasive adrenalectomy or open adrenalectomy. Short- and long-term outcomes were compared.
RESULTS: A total of 276 patients underwent adrenalectomy for malignant pheochromocytoma: 50.7% open adrenalectomy and 49.3% minimally invasive adrenalectomy. Demographics were similar, except those who underwent open adrenalectomy had larger tumors compared to minimally invasive adrenalectomy (8.2 cm vs 4.7 cm; P < .001). Tumor size ≥6 cm was associated with a reduced likelihood of minimally invasive adrenalectomy (relative to open adrenalectomy) on multivariable regression (odds ratio = 0.23; P < .001). Open adrenalectomy was associated with longer duration of stay relative to minimally invasive adrenalectomy (6 vs 3 days; P < .001). Rates of positive margins, unplanned readmissions, or 30-/90-day mortalities were similar based on operative approach. Five-year survival rates were similar (open adrenalectomy 74.3%, minimally invasive adrenalectomy 79.1%). There was no association between overall survival and operative approach on multivariable Cox analysis when controlling for tumor size, laterality, and clinicodemographic variables.
CONCLUSION: Patients with larger malignant pheochromocytomas were more likely to undergo an open adrenalectomy. With the exception of an increased duration of stay, there was no difference in short- or long-term postoperative outcomes. These data suggest that minimally invasive adrenalectomy appears safe among tumors <6 cm.