Elsevier

International Journal of Surgery

Volume 60, December 2018, Pages 188-193
International Journal of Surgery

Original Research
Risk factors for postoperative severe morbidity after pheochromocytoma surgery: A single center retrospective analysis of 262 patients

https://doi.org/10.1016/j.ijsu.2018.11.019Get rights and content
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Highlights

  • Severe morbidity is common in patients after pheochromocytoma surgery.

  • Female sex, lower BMI, CHD, longer duration of surgery, and IHD are independent risk factors.

  • Retrospective case control study.

Abstract

Purpose

Surgical resection is the primary treatment strategy for pheochromocytoma; however, it carries a high risk of morbidity and mortality. The risk factors for severe morbidity remain unclear and require further exploration. We aimed to identify the risk factors for severe morbidity after pheochromocytoma surgery in Chinese patients.

Methods

We retrospectively reviewed 262 patients who underwent unilateral laparoscopic or open pheochromocytoma surgery at our center between January 1, 2007 and December 31, 2016. Patient demographics, as well as extensive perioperative data were recorded. Adjusted odds ratios and 95% confidence intervals were determined by multivariate binary logistic regression. Cutoff values and the area under the curve for continuous risk factors were calculated through receiver operating characteristic curve analysis. A P < 0.05 was considered statistically significant.

Results

Of the 262 patients, 78 (29.8%) had severe morbidity. The independent risk factors for severe morbidity were female sex, lower body mass index, coronary heart disease, longer duration of surgery, and intraoperative hemodynamic instability, with odds ratios of 2.624 (P = 0.003), 0.780 (P < 0.001), 2.098, (P = 0.024), 1.005 (P = 0.031), and 2.920 (P = 0.005). The optimal cut off values for body mass index and duration of surgery were 24.25 kg/m2 and 203 min.

Conclusions

Severe morbidity is common in patients after pheochromocytoma surgery. We identified five independent risk factors for severe morbidity: female sex, lower body mass index, coronary heart disease, longer duration of surgery, and intraoperative hemodynamic instability. Identification of these risk factors may help to improve perioperative strategy.

Keywords

Pheochromcytoma
Morbidity
Intraoperative hemodynamic instability
Surgery

Abbreviation

BMI
body mass index
ASA
American Society of Anesthesiologists
CT
computed tomography
VMA
vanillylmandelic acid
IHD
intraoperative hemodynamic instability
OR
odds ratio
CI
confidence interval
ROC
receiver operating characteristic curve
AUC
area under the curve

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