Nonocclusive mesenteric ischemia after percutaneous kyphoplasty: A case report.

RATIONALE

Percutaneous kyphoplasty (PKP) is a minimally invasive technique employed for treating vertebral compression fractures. Although PKP is simple and relatively safe, severe complications are possible. Here, we report a new, severe complication linked to this procedure, namely nonocclusive mesenteric ischemia (NOMI).

PATIENT CONCERNS

An 83-year-old female patient, previously in good health, fell backward, landing on her buttocks, and subsequently experienced persistent low-back pain that exacerbated during turning or sitting up.

DIAGNOSES

Lumbar spine radiography revealed wedge deformity of the L1 vertebral body. Lumbar spine magnetic resonance imaging indicated a fresh compression fracture of the L1 vertebral body.

INTERVENTIONS

On the 2nd day following the trauma, the patient underwent PKP under local anesthesia. Anesthesia was satisfactory, and the procedure progressed smoothly.

OUTCOMES

The patient experienced mild discomfort in the right abdomen within the 1st hour to 3 days postoperatively, mild abdominal distension on the 4th day, and sudden severe abdominal pain on the 5th day. Immediate abdominal computed tomography revealed ischemic changes in the ascending colon and hepatic flexure, accompanied by hepatic portal venous gas. An hour later, abdominal pain spontaneously subsided. Approximately 5 hours later, an enhanced abdominal computed tomography revealed no filling defects in the mesenteric vasculature, absence of luminal narrowing or occlusion, enhanced intestinal walls, and a notable improvement in hepatic portal venous gas. Considering NOMI and ischemia related to superior mesenteric artery spasm, vasodilator therapy (papaverine hydrochloride) was initiated, leading to favorable outcomes. On day 17, pathological examination of the hepatic flexure revealed moderate, acute, and chronic mucosal inflammation, along with interstitial fibrous tissue proliferation, providing clear evidence supporting ischemic changes. She was discharged on day 18 after a successful recovery.

LESSONS

The occurrence of NOMI after PKP is uncommon. Yet, once it happens, delayed diagnosis or misdiagnosis can lead to serious consequences such as intestinal necrosis and abdominal infection, even endangering the patient's life. We currently lack experience in preventing this complication, but timely diagnosis and appropriate intervention are effective measures in treating such complications.