The Journal of the Arkansas Medical Society Med Journal April 2020 | Page 17

Case Study by Joseph W. Fong MD 1 , Latha M. Achanta MD 2 2. 1 Department of Internal Medicine, University of Arkansas for Medical Sciences, Little Rock, Ark. Department of Internal Medicine, Jones Eye Institute, University of Arkansas for Medical Sciences, Little Rock, Ark. Use of Thalidomide for Gastrointestinal Angiodysplasia – Not So Uncommon Anymore Abstract We report a 67-year-old African American female with extensive proximal small bowel arteriove- nous malformations who developed GI bleed- ing refractory to endoscopic treatments. Her GI bleeding resolved after initiation of thalidomide. Thalidomide is a known teratogenic drug with suppressive action on tumor necrosis factor al- pha and an effective inhibitor of angiogenesis, which was shown to be efficacious in treatment of gastrointestinal vascular malformations re- fractory to other interventions. colonoscopy. She reports no significant family history. Her daily medications include amlodip- ine/valsartan, insulin glargine, regular insulin sliding scale, cinacalcet, sevelamer carbonate, levothyroxine, lubiprostone, and simvastatin. Socially, she is not currently married and denies any smoking, alcohol, or illicit drug use history. Per outside hospital records, esophagogastrodu- odenoscopy (EGD) and colonoscopy showed no obvious source of bleeding and noted only some erosion in the stomach. Tagged RBC scan was clindamycin and linezolid. She was transferred to our facility for further management of GI bleed and consideration for capsule endoscopy. Upon arrival to our facility, patient was afebrile, normotensive, with normal heart rate, and on room air. Her abdomen was soft with no ten- derness to palpation and normoactive bowel sounds present. She had a left internal jugular Quinton catheter in place. Capsule endoscopy was performed, which showed multiple areas of angioectasia and bleeding AVMs in the prox- imal small bowel (Figure 1), and the patient underwent single bal- loon enteroscopy with argon plas- Case ma coagulation of multiple AVMs. We present a 67-year-old Af- Infectious disease was consulted rican American female who for MSSA bacteremia and the pa- initially presented to an outside tient was switched to cefazolin for hospital stating that she was a total course of six weeks. She intermittently having dark, tar- underwent work up for bacteremia, ry stools for several months which included removal and replace- and started having fevers, ment of the Quinton catheter and chills, fatigue, and malaise for trans-esophageal echocardiogram two weeks. She was found that revealed a mitral valve vegeta- to be febrile to 102° F and tion and perforation with moderate/ hypotensive with a hemoglo- severe mitral regurgitation. Cardiol- bin of 4. She was transfused, ogy and cardiothoracic surgery were started on broad spectrum consulted for evaluation for possible antibiotics, and admitted for valve repair. The patient, however, workup of GI bleed and sepsis. continued to have melena during her preoperative workup, therefore She has a past medical his- Figure 1: Extensive AVMs and angioectasia in the jejunum with cardiothoracic surgery was unable tory significant for recurrent active bleeding noted on serial small bowel enteroscopy studies to perform mitral valve replacement diverticulitis with perforation (TOP). Angiodysplasia of the jejunum (BOTTOM). since anticoagulation would be contra- requiring hemicolectomy with indicated with continued GI bleeding. ostomy placement with subsequent reversal 30 performed, which showed hemorrhage in colon Our GI consultants recommended subcutaneous years ago, hypertension, hypothyroidism, insu- but again no obvious source of bleeding. She octreotide 100 mcg BID to decrease need for lin-dependent type 2 diabetes, obstructive sleep continued to have melanotic stools and she re- transfusions. Capsule endoscopy was repeated apnea, and end stage renal disease on hemodi- quired transfusions almost daily. Blood cultures and showed active bleeding in small bowel most alysis. She was noted to have multiple arterio- grew methicillin-sensitive Staphylococcus aureus likely from small bowel AVMs with poor local- venous malformations (AVMs) on a previous (MSSA), and her antibiotics were switched to IV ization. Most of the lesions were noted to be in Volume 116 • Number 10 April 2020 • 233