Clinical predictors of prolonged postresection hypotension after laparoscopic adrenalectomy for pheochromocytoma

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• 作者：Takeshi Namekawa ; MD^a ; Takanobu Utsumi ; MD ; PhD^b ; ^{takanobu.utsumi@med.toho-u.ac.jp" class="auth_mail" title="E-mail the corresponding author} ; Koji Kawamura ; MD ; PhD^a ; Naoto Kamiya ; MD ; PhD^b ; Takashi Imamoto ; MD ; PhD^a ; Tomoko Takiguchi ; MD^c ; Naoko Hashimoto ; MD ; PhD^c ; Tomoaki Tanaka ; MD ; PhD^c ; Yukio Naya ; MD ; PhD^d ; Hiroyoshi Suzuki ; MD ; PhD^b ; Tomohiko Ichikawa ; MD ; PhD^a
• 刊名：Surgery
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：159
• 期：3
• 页码：763-770
• 全文大小：509 K

文摘

Although the perioperative management of patients with pheochromocytoma has been improving recently, severe hypotensive episodes can occur that require postoperative catecholamine support and are challenging to manage. Our aim was to identify the clinical factors that predict prolonged postresection hypotension in patients after laparoscopic adrenalectomy for pheochromocytoma.

Methods

The records of 73 Japanese patients who underwent unilateral laparoscopic adrenalectomy for pheochromocytoma were surveyed retrospectively. Patients were divided into 2 groups according to whether catecholamine support was needed after postoperatively. Clinical and biochemical data were evaluated at baseline and after operation.

Results

Thirty-four of 73 patients (47%) required continuous infusion of catecholamine to maintain systolic blood pressure >90 mm Hg at the end of the operation. The median duration of postoperative catecholamine support was 17 hours (range, 3–130) in these 34 patients. On multivariate analysis, tumor size >60 mm, urinary epinephrine levels >200 μg/day, and urinary norepinephrine levels >600 μg/day were independent predictors of prolonged hypotension requiring postoperative catecholamine support. Tumor size and urinary norepinephrine levels were significantly correlated with the duration of postoperative catecholamine support.

Conclusion

Larger tumor size and greater values of urinary epinephrine and norepinephrine levels were significant predictors of prolonged hypotension requiring postoperative catecholamine support. Moreover, tumor size and urinary norepinephrine levels were positively correlated with the duration of postoperative catecholamine support. Clinicians can identify and manage patients more effectively with a greater risk of prolonged hypotension after tumor resection using these preoperative clinical variables.