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Gastropharyngeal Anastomotic Leak in Medullary Thyroid Carcinoma Following Initiation of a Tyrosine Kinase Inhibitor: A Case Report of an Unusual Side Effect of Cabozantinib.

酪氨酸激酶抑制剂启动后甲状腺髓样癌的胃咽吻合口瘘: 1 例Cabozantinib不寻常副作用的病例报告。

  • 影响因子:1.59
  • DOI:10.1177/0003489420902161
  • 作者列表:"Ackerman J","Kent S","Walker P
  • 发表时间:2020-07-01
Abstract

BACKGROUND:Medullary thyroid carcinoma (MTC) accounts for 1% to 2% of thyroid cancers in the United States. When identified early, total thyroidectomy is most often curative. However, in advanced disease, more aggressive treatment such as laryngectomy and esophagectomy may be indicated. Postsurgical fistula formation and leak is a potential complication in such cases. These fistulas are most likely to occur at the anastomotic site in cases of laryngectomy or esophagectomy. Concomitant chemotherapy and radiation increase this risk. Tyrosine kinase inhibitors (TKI) such as Cabozantinib are used as therapy for metastatic MTC. These drugs have previously been associated with dehiscence of anastomotic sites in the gastrointestinal tract. While previously identified in the bowel, this report represents the first documented case of gastropharyngeal anastomosis leak described in the context of TKI use for head and neck cancer. CASE PRESENTATION:We present the case of a 72-year-old male previously diagnosed with MTC. His gastropharyngeal anastomosis status-post laryngopharyngectomy and gastric pull up had been stable for 23 years. Over the past year, he developed back pain and was found to have spinal metastases of MTC. He was subsequently started on Cabozantinib to slow the progression of the disease. Within months of starting this TKI, a bleeding pharyngocutaneous fistula developed at the anastomosis site of the gastric pull up and pharynx. Upon discontinuation of Cabozantinib, the fistula healed with no further complications. CONCLUSIONS:To our knowledge, this is the first documented case of gastropharyngeal anastomotic leak related to TKI use. A causal relationship is highly plausible given the previously stable anastomosis and the suspicious advent of complications within months of initiation of this new drug. While previously limited to cases of intraabdominal bowel dehiscence, this report now suggests that wound dehiscence must be considered a known side effect of TKIs throughout the gastrointestinal tract, including the gastropharynx. As such, the risk of anastomotic dehiscence should be discussed with the patient prior to starting a TKI.

摘要

背景: 在美国,甲状腺髓样癌 (MTC) 占甲状腺癌的 1% ~ 2%。早期发现时,甲状腺全切除术是最常用的治疗方法。然而,在晚期疾病中,可能需要更积极的治疗,如喉切除术和食管切除术。手术后瘘管形成和泄漏是此类病例的潜在并发症。这些瘘最可能发生在喉切除术或食管切除术的吻合部位。伴随化疗和放疗增加这种风险。酪氨酸激酶抑制剂 (TKI) 如卡博替尼被用作转移性MTC的治疗药物。这些药物以前与胃肠道吻合部位的裂开有关。虽然以前在肠道中发现,但本报告代表了TKI用于头颈癌中描述的第一例记录在案的胃咽吻合口瘘病例。 病例介绍: 我们介绍了一例 72 岁男性既往诊断为MTC的病例。他的胃咽吻合术状态-喉咽切除术后和胃拉起已稳定 23 年。过去一年,他出现背痛,并被发现有MTC脊柱转移。随后开始服用卡博替尼,以减缓疾病进展。在开始TKI的几个月内,胃上拉和咽部的吻合部位出现出血咽瘘。停用Cabozantinib后,瘘管愈合,无进一步并发症。 结论: 据我们所知,这是第一例记录在案的与TKI使用相关的胃咽吻合口瘘病例。考虑到先前稳定的吻合和这种新药开始后几个月内并发症的可疑出现,因果关系是非常合理的。虽然以前仅限于腹内肠管裂开的病例,但本报告现在建议伤口裂开必须被认为是TKIs在整个胃肠道 (包括胃部) 的已知副作用。因此,在开始TKI之前,应与患者讨论吻合口裂开的风险。

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DOI:10.1259/bjr.20180883
作者列表:["Tran S","Puric E","Walser M","Poel R","Datta NR","Heuberger J","Pica A","Marder D","Lomax N","Bolsi A","Morach P","Bachtiary B","Seddon BM","Schneider R","Bodis S","Weber DC"]

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影响因子:1.41
发表时间:2020-03-01
DOI:10.1177/1078155219842277
作者列表:["Gyori DJ","Bullington SM","Crawford BS","Vernon VP"]

METHODS:BACKGROUND:National guidelines recommend screening and treatment for cancer-related bone disease and continued monitoring of bone-modifying agents. It is unclear whether a standardized screening tool is utilized to identify eligible patients and ensure appropriate supportive care is implemented. The purpose of this study was to evaluate current prescribing practices and optimize management of bone-modifying agents. METHODS:A retrospective chart review was performed to identify patients who received hormone deprivation therapy or had bone metastases through Hematology/Oncology or Urology clinics from 1 November 2016 to 31 October 2017. The primary endpoints of this study were the incidence of completed baseline dual-energy X-ray absorptiometry (DEXA) scan for patients on hormone deprivation therapy and percent of patients started on a bone-modifying agent for the prevention of skeletal-related events secondary to bone metastasis. Secondary endpoints included percent of patients with dental examinations prior to initiation, adequate calcium and vitamin D supplementation, incidence of osteonecrosis of the jaw or flu-like symptoms and education, and percent of bisphosphonate doses appropriately adjusted based on renal function. RESULTS:A total of 375 patients were assessed for baseline DEXA scans and bone-modifying therapy. Of the 226 patients on hormone deprivation therapy, 111 (49%) patients were appropriately screened with a DEXA scan prior to initiation of hormone deprivation therapy. Among the 149 patients with bone metastases, only 94 (63.1%) patients were started on a bone-modifying agent. CONCLUSIONS:Opportunities have been identified to optimize management of patients with cancer-related bone disease. Implementation of standardized tools may increase the rate of appropriate screening and initiation of bone-modifying therapy when warranted.

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影响因子:2.83
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DOI:10.1007/s00520-019-04843-9
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骨肿瘤是发生于骨骼或其附属组织的肿瘤。有良性,恶性之分,良性骨肿瘤易根治,预后良好,恶性骨肿瘤发展迅速,预后不佳,死亡率高。

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