Project description:Iatrogenic aortocoronary arteriovenous fistula is a very rare complication of coronary artery bypass grafting in which one of the arterial grafts inadvertently forms a fistulous tract with a cardiac vein, shunting blood from the anastomosed coronary artery. We report a patient with an iatrogenic left internal mammary artery graft to cardiac vein fistula presenting with recurrent angina three years after a three-vessel coronary artery bypass grafting.

| S-EPMC6035848 | biostudies-literature

Resisting arrest: Perioperative confirmation and management of an iatrogenic aortocoronary arteriovenous fistula after coronary artery bypass grafting for redo cardiac surgery.

Project description:Although rare, iatrogenic aortocoronary arteriovenous fistulae (ACAVF) occur when a coronary graft is mistakenly anastomosed to an epicardial vein rather than its intended arterial target. Patients may be asymptomatic, demonstrate angina, dyspnea, arrhythmias, syncope, or diminished exercise capacity, and may have wide pulse pressures with evidence of coronary steal. A thorough insight into the disordered anatomy is critical to safely manage a patient for redo cardiac surgery, especially when attempting to arrest the heart. We present a case for redo cardiac surgery of an iatrogenic ACAVF confirmed perioperatively with multiple modalities and its intraoperative management.

| S-EPMC9997470 | biostudies-literature

Iatrogenic Arteriovenous Fistula: A Rare Complication of Pacemaker Implantation.

Project description:Severe vascular complications associated with pacemaker implantation are rare. Typically, they are overt, and require immediate resolution. We present 2 patients with insidious presentation of arteriovenous fistulae due to pacemaker implantation that were recognized early post-implantation. Both were repaired endovascularly and had good outcomes post-repair. (Level of Difficulty: Intermediate.).

| S-EPMC9175140 | biostudies-literature

Endovascular treatment of a large iatrogenic popliteal arteriovenous fistula.

Project description:A 40-year-old man presented with years of progressive leg swelling and venous varicosities. Lower limb computed tomography angiography and subsequent digital subtraction angiography demonstrated a large popliteal arteriovenous fistula (AVF). This was treated successfully by endovascular technique with a Viabahn stent (W. L. Gore & Associates, Flagstaff, Ariz) in the popliteal artery to exclude the AVF. AVFs of this size and chronicity are rare, and this case demonstrates a successful endovascular method of treatment.

| S-EPMC7036700 | biostudies-literature

Iatrogenic tibial arteriovenous fistula after Fogarty balloon catheter graft thrombectomy.

Project description:A 75-year-old male presented with an immediately threatened grade IIb acute ischemia of the left leg due to thrombosis of a femoro-infrapopliteal prosthetic bypass graft. After an urgent Computed Tomography Angiography, an urgent graft thrombectomy was performed using a 5 Fr Fogarty catheter, which had a troublesome distal passage, causing a tibial A-V fistula.

| S-EPMC8577240 | biostudies-literature

Iatrogenic Arteriovenous Fistula Following Femoral Access Precipitating High-Output Heart Failure.

Project description:Iatrogenic complications may manifest in a variety of ways. We present the case of an 86-year-old woman who underwent a percutaneous coronary intervention with a drug-eluting stent for non-ST-segment elevation myocardial infarction followed by leadless pacemaker placement through a femoral approach. Her post-procedure course was complicated by new onset high-output heart failure secondary to iatrogenic arteriovenous fistula formation, requiring covered stent placement. (Level of Difficulty: Advanced.).

| S-EPMC8311044 | biostudies-literature

Iatrogenic subclavian arteriovenous fistula during permanent pacemaker implantation: Closed by endovascular coiling.

Project description:Iatrogenic arteriovenous fistula is a unique complication during pacemaker implantation. A 55-year-old man was posted for pacemaker implantation for recurrent unexplained syncope with trifascicular AV block. After axillary/subclavian venous puncture and introduction of RV lead, arterial spurting was immediately noticed as the the sheath was peeled away. After dissecting the overlying pectoralis muscle, deep sutures and manual compression achieved hemostasis. However, Subclavian arteriogram revealed an arteriovenous fistula from a lateral thoracic artery branch to the innominate vein. Hilal coils were deployed near the fistulous orifice, leading to complete resolution of the leak. After 3 days, pacemaker was implanted from right side. A multidisciplinary approach was the key to successful outcome.

| S-EPMC6010009 | biostudies-literature

Iatrogenic Aortocoronary Dissection During Percutaneous Coronary Intervention: Investigation and Management.

Project description:We present a case of iatrogenic aortocoronary dissection sustained during routine percutaneous coronary intervention for stable angina. Careful wiring of the true lumen and stent implantation to seal off the dissection flap prevented immediate complications, and computed tomography aortography guided a conservative approach to manage the residual aortic dissection. (Level of Difficulty: Intermediate.).

| S-EPMC8305681 | biostudies-literature

Iatrogenic Arteriovenous Fistula Secondary to Coronary Artery Dissection Caused by Contrast Injection Into a Chronically Occluded Right Coronary Artery.

Project description:Coronary arteriovenous fistulas and coronary cameral fistulas are rare anomalies that involve the abnormal communication between a coronary artery and a venous structure, such as a coronary vein or a right-sided cardiac chamber. Iatrogenic coronary arteriovenous fistulas and coronary cameral fistulas can be uncommon complications of coronary artery angiography and intervention. Acquired coronary arteriovenous fistulas that develop during percutaneous coronary intervention of chronic total occlusions have been previously reported in the literature. However, a coronary arteriovenous fistula resulting from contrast injection into a chronically and totally occluded right coronary artery during diagnostic coronary angiography is very rare. We present a unique case of a contrast-induced iatrogenic right coronary dissection leading to a coronary arteriovenous fistula communicating to the right atrium through the middle cardiac vein.

| S-EPMC8510666 | biostudies-literature

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