Related Experiment Video
Updated: Jun 6, 2026

Microsurgical Venous Pouch Arterial-Bifurcation Aneurysms in the Rabbit Model: Technical Aspects
Published on: May 11, 2011
Mycotic superior mesenteric pseudoaneurysm draining into a vein
Manabu Shiraishi1, Shinichi Ohki, Yoshio Misawa
1Division of Cardiovascular Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan. manabu@omiya.jichi.ac.jp
A patient with schizophrenia presented with fever and fatigue, revealing mitral valve vegetation and a superior mesenteric artery aneurysm (SMAA). Surgical intervention and antibiotics successfully treated this rare dual condition.
Area of Science:
- Cardiology
- Vascular Surgery
- Infectious Diseases
Background:
- A 46-year-old male with a history of schizophrenia presented with fatigue and fever.
- This case highlights a rare concurrence of infective endocarditis and a large superior mesenteric artery aneurysm (SMAA).
Observation:
- Transthoracic echocardiography revealed a significant 17 mm vegetation on the mitral valve with mild regurgitation.
- Abdominal CT scan identified a markedly enlarged superior mesenteric artery aneurysm (SMAA).
Findings:
- The patient underwent successful surgical excision of the SMAA and double valve replacement.
- A six-week course of intravenous antibiotics was administered for treatment.
Implications:
- This case underscores the importance of comprehensive diagnostic evaluation in patients presenting with complex symptoms.
- Prompt surgical and antibiotic management is crucial for favorable outcomes in patients with co-existing cardiovascular and vascular emergencies.
Related Concept Videos
Veins of the Abdomen and Pelvis
The inferior vena cava is fed by numerous smaller veins. The lumbar veins, for instance, drain the posterior abdominal wall, emptying both directly into the inferior vena cava and into the...
Veins of Thorax
The azygos vein, positioned just right of the midline and anterior to the vertebral column, begins at the junction of the right ascending lumbar and subcostal veins, terminating in the superior vena cava. This vein drains blood from the right side of the thoracic wall, thoracic viscera, and posterior abdominal wall.
The...
Veins of Head and Neck
On the other hand, the vertebral veins, unlike their arterial counterparts, are not primarily responsible for brain drainage. Instead, they drain the cervical vertebrae, spinal cord, and some small...
Blood Supply to the Digestive System
Blood Supply to the Digestive System: The splanchnic circulation involves three main arteries: the celiac artery (also known as the celiac trunk) and the superior and inferior mesenteric...
Veins of Lower Limbs
Formed by the union of the medial and lateral plantar veins, the posterior tibial vein, rising through the calf muscle, assimilates the fibular vein. The anterior tibial vein, a superior extension of the foot's dorsalis pedis vein, merges with the posterior tibial vein at the knee,...
Overview of Systemic Veins
The coronary sinus, the heart's principal vein, resides in the coronary sulcus on the heart's posterior aspect. This broad venous channel receives nearly all venous blood from the myocardium, the heart muscle. It is fed by three primary veins: the great cardiac vein, the middle...