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Respiratory Distress Requiring Surgical Intervention Following Traumatic Central Internal Jugular Vein Cannulation: Review Of 2 Cases David J Archibald, MD; Matthew L Carlson, MD; Jan L. Kasperbauer, MD Department of Otolaryngology-Head and Neck Surgery; Mayo Clinic School of Medicine, Rochester, MN INTRODUCTION INTRODUCTION Acute upper airway obstruction may occur secondary to hematoma formation following traumatic internal jugular vein (IJV) cannulation. Though uncommon, hematoma after central access can be a life-threatening event that requires early and prompt intervention. We present two different Acute upper airway obstruction may occur secondary to hematoma formation following traumatic internal jugular vein (IJV) cannulation. Though uncommon, hematoma after central access can be a life-threatening event that requires early and prompt intervention. We present two different cases of airway obstruction caused by hematoma formation following IJV central line placement and discuss key management strategies. cases of airway obstruction caused by hematoma formation following IJV central line placement and discuss key management strategies. CASE CASE #1 #1 A 67-year-old man with a history of coronary artery disease underwent A 67-year-old man with a history of coronary artery disease underwent elective percutaneous intervention with drug-eluting stent placement in his elective percutaneous intervention with drug-eluting stent placement in his LAD. The patient had been anticoagulated for the procedure with both LAD. The patient had been anticoagulated for the procedure with both heparin and anti-platelet therapy. During the procedure multiple failed heparin and anti-platelet therapy. During the procedure multiple failed attempts had been made at obtaining right IJV access for hemodynamic attempts had been made at obtaining right IJV access for hemodynamic monitoring. The patient developed immediate swelling in the region of the IJV monitoring. The patient developed immediate swelling in the region of the IJV puncture sites and was admitted for observation. After arrival to the hospital puncture sites and was admitted for observation. After arrival to the hospital floor, the primary service noted increasing hematoma formation. Additionally, floor, the primary service noted increasing hematoma formation. Additionally, the patient was complaining of worsening pain, new-onset hoarseness, and the patient was complaining of worsening pain, new-onset hoarseness, and difficulty swallowing his own secretions. An ENT consultation was requested. difficulty swallowing his own secretions. An ENT consultation was requested. A CT of the neck demonstrated a large (2x10x5 cm) hematoma in the right A CT of the neck demonstrated a large (2x10x5 cm) hematoma in the right neck abutting the IJV at the level of the glottis and infiltrating the neck abutting the IJV at the level of the glottis and infiltrating the retropharyngeal tissues (Figure A) resulting in a narrowing of the supraglottic retropharyngeal tissues (Figure A) resulting in a narrowing of the supraglottic airway. No contrast extravasation was noted. airway. No contrast extravasation was noted. On physical exam the patient was drooling and hoarse but did not have On physical exam the patient was drooling and hoarse but did not have any audible stridor. He had minimal swelling of his right neck from just below any audible stridor. He had minimal swelling of his right neck from just below the level of the cricoid to the supraclavicular region; however, there was the level of the cricoid to the supraclavicular region; however, there was significant ecchymosis around multiple puncture sites. The trachea was significant ecchymosis around multiple puncture sites. The trachea was midline. Flexible nasopharyngoscopy revealed pooling secretions in the midline. Flexible nasopharyngoscopy revealed pooling secretions in the hypopharynx and soft tissue fluctuance of the posterior pharyngeal wall with hypopharynx and soft tissue fluctuance of the posterior pharyngeal wall with airway encroachment. The patient underwent immediate fiberoptic airway encroachment. The patient underwent immediate fiberoptic nasotracheal intubation. nasotracheal intubation. The following day the patient was taken to the operating room where he The following day the patient was taken to the operating room where he underwent tracheotomy for a more secure airway (Figure B). Direct underwent tracheotomy for a more secure airway (Figure B). Direct laryngoscopy was subsequently performed, revealing a severe amount of laryngoscopy was subsequently performed, revealing a severe amount of posterior pharyngeal wall ecchymosis and edema (Figure C), though the posterior pharyngeal wall ecchymosis and edema (Figure C), though the glottic structures themselves appeared minimally edematous (Figure D). The glottic structures themselves appeared minimally edematous (Figure D). The patient was decannulated without event on postoperative day #9. patient was decannulated without event on postoperative day #9. A B C CASE CASE #2 #2 A 75-year-old man with a history of paroxysmal atrial fibrillation underwent A 75-year-old man with a history of paroxysmal atrial fibrillation underwent a right heart catheterization via IJV access for radiofrequency ablation of his a right heart catheterization via IJV access for radiofrequency ablation of his pulmonary veins. Prior to successful venous access for the procedure, pulmonary veins. Prior to successful venous access for the procedure, multiple attempts had been made, during which a hematoma developed in multiple attempts had been made, during which a hematoma developed in the patient’s right neck. The patient had been anticoagulated for this the patient’s right neck. The patient had been anticoagulated for this procedure. He immediately underwent orotracheal intubation, and an ENT procedure. He immediately underwent orotracheal intubation, and an ENT consultation was requested. consultation was requested. On physical exam the patient was noted to have marked soft tissue edema On physical exam the patient was noted to have marked soft tissue edema on the right side of his neck extending from the mandible down to the clavicle. on the right side of his neck extending from the mandible down to the clavicle. He had ecchymosis around the intravenous site and his trachea was He had ecchymosis around the intravenous site and his trachea was significantly deviated to the contralateral, left side. The remainder of the significantly deviated to the contralateral, left side. The remainder of the physical examination was normal. physical examination was normal. A CT angiogram of the neck (Figure E) showed a prominent hematoma in A CT angiogram of the neck (Figure E) showed a prominent hematoma in the right neck (8x7x12cm). There was no evidence of contrast extravasation. the right neck (8x7x12cm). There was no evidence of contrast extravasation. The trachea was deviated approximately 2.5cm as a result of the mass effect The trachea was deviated approximately 2.5cm as a result of the mass effect from the hematoma. from the hematoma. The following day the patient was taken to the operating room where he The following day the patient was taken to the operating room where he underwent neck exploration and hematoma evacuation. Intraoperatively, the underwent neck exploration and hematoma evacuation. Intraoperatively, the patient was found to have a large hematoma extending into the patient was found to have a large hematoma extending into the retropharyngeal space and a moderate amount of bleeding around the retropharyngeal space and a moderate amount of bleeding around the entrance point of the central venous line. The line was removed, revealing a entrance point of the central venous line. The line was removed, revealing a 3-mm hole in the IJV, which was oversewn. The patient was extubated the 3-mm hole in the IJV, which was oversewn. The patient was extubated the following day without event. following day without event. D E DISCUSSION DISCUSSION IJV cannulation resulting in a cervical hematoma and airway obstruction is uncommon (0IJV cannulation resulting in a cervical hematoma and airway obstruction is uncommon (04.7%) but can be fatal [1-3]. When this occurs, one must suspect inadvertent arterial puncture by 4.7%) but can be fatal [1-3]. When this occurs, one must suspect inadvertent arterial puncture by a large bore cannula or vessel dilator, though this can occur from venous effusion alone, as a large bore cannula or vessel dilator, though this can occur from venous effusion alone, as seen in case #2. Pseudoaneurysm of the carotid, vertebral, and subclavian arteries, have been seen in case #2. Pseudoaneurysm of the carotid, vertebral, and subclavian arteries, have been described following IJV cannulation [4-6]. Early diagnosis is important, as smaller aneurysms are described following IJV cannulation [4-6]. Early diagnosis is important, as smaller aneurysms are easier to treat surgically. easier to treat surgically. Proper cannulation of the IJV is dependent on the IJV running just lateral to the carotid artery, Proper cannulation of the IJV is dependent on the IJV running just lateral to the carotid artery, which occurs in the vast majority of patients (92-97%) [7-9]. The use of ultrasound to aid which occurs in the vast majority of patients (92-97%) [7-9]. The use of ultrasound to aid cannulation of the vein is associated with a reduced number of attempts and arterial puncture, cannulation of the vein is associated with a reduced number of attempts and arterial puncture, and is recommended in high-risk patients, e.g. obesity, short neck, coagulopathy, and repeated and is recommended in high-risk patients, e.g. obesity, short neck, coagulopathy, and repeated cannulations [8]. Both of our patients were anticoagulated but did not undergo ultrasound-guided cannulations [8]. Both of our patients were anticoagulated but did not undergo ultrasound-guided IJV cannulation. IJV cannulation. Direct compression of the trachea by a hematoma can result in airway obstruction [10]. Many Direct compression of the trachea by a hematoma can result in airway obstruction [10]. Many authors, alternatively, believe that the rigidity of the trachea is difficult to compress and that a authors, alternatively, believe that the rigidity of the trachea is difficult to compress and that a more likely mechanism of airway obstruction is pharyngolaryngeal edema secondary to venous more likely mechanism of airway obstruction is pharyngolaryngeal edema secondary to venous and lymphatic obstruction by the hematoma [11-13]. This second mechanism may explain why and lymphatic obstruction by the hematoma [11-13]. This second mechanism may explain why more significant airway obstruction can be delayed. more significant airway obstruction can be delayed. Initial presentation of a patient with hematoma development following IJV central line access Initial presentation of a patient with hematoma development following IJV central line access may be subtle as in case #1. This patient had rather unremarkable cervical neck edema but may be subtle as in case #1. This patient had rather unremarkable cervical neck edema but nasopharyngoscopy revealed the inception of a retropharyngeal hematoma. The IJV and carotid nasopharyngoscopy revealed the inception of a retropharyngeal hematoma. The IJV and carotid artery are encircled in a sheath of deep cervical fascia, separated by a thin fascial slip from the artery are encircled in a sheath of deep cervical fascia, separated by a thin fascial slip from the retropharyngeal space. Perforation of the IJV, and possibly the carotid artery, may cause blood retropharyngeal space. Perforation of the IJV, and possibly the carotid artery, may cause blood extravasation into the retropharyngeal space, leading to severe swelling of this area. extravasation into the retropharyngeal space, leading to severe swelling of this area. The retropharyngeal space is the most anterior of three potential spaces (prevertebral and The retropharyngeal space is the most anterior of three potential spaces (prevertebral and danger spaces) in the midline prevertebral neck, and is a potential space lined by loose danger spaces) in the midline prevertebral neck, and is a potential space lined by loose connective tissue lying between the pharynx and the fascia overlying the vertebral column. This connective tissue lying between the pharynx and the fascia overlying the vertebral column. This space is key to an understanding of downward spread of infections of the head and neck or space is key to an understanding of downward spread of infections of the head and neck or extravasating blood from a traumatic IJV central line. It extends upward to the base of the skull extravasating blood from a traumatic IJV central line. It extends upward to the base of the skull and extends downward behind the lower portion of the pharynx and esophagus to form the and extends downward behind the lower portion of the pharynx and esophagus to form the posterior portion of the visceral compartment of the neck, communicating with the pretracheal posterior portion of the visceral compartment of the neck, communicating with the pretracheal space, ending at the level of the bifurcation of the trachea. space, ending at the level of the bifurcation of the trachea. A retropharyngeal hematoma may have variable presentation, depending on its size and rate A retropharyngeal hematoma may have variable presentation, depending on its size and rate of formation. Patients classically present with clinical symptoms of tracheal and esophageal of formation. Patients classically present with clinical symptoms of tracheal and esophageal compression, manifesting as dysphagia, odynophagia, or dyspnea. A compression of the compression, manifesting as dysphagia, odynophagia, or dyspnea. A compression of the arytenoid cartilages can also occur, leading to hoarseness or complete airway obstruction. arytenoid cartilages can also occur, leading to hoarseness or complete airway obstruction. Frequently, though often unnecessary, imaging studies are performed in assessment of a Frequently, though often unnecessary, imaging studies are performed in assessment of a retropharyngeal hematoma. In general, the retropharyngeal soft tissue should measure no more retropharyngeal hematoma. In general, the retropharyngeal soft tissue should measure no more than one-third to one-half the width of the cervical vertebrae [15]. than one-third to one-half the width of the cervical vertebrae [15]. The insidious nature of retropharyngeal hematomas may lead to serious consequences. The insidious nature of retropharyngeal hematomas may lead to serious consequences. Careful observation must be undertaken, even in patients who do not immediately present with a Careful observation must be undertaken, even in patients who do not immediately present with a compromised airway. Dyspnea can begin suddenly with a possible fatal outcome [14]. Early compromised airway. Dyspnea can begin suddenly with a possible fatal outcome [14]. Early precautions to secure the airway should be undertaken when patients present with dyspnea. precautions to secure the airway should be undertaken when patients present with dyspnea. Endotracheal intubation was performed in both of our patients; however, this may be difficult in Endotracheal intubation was performed in both of our patients; however, this may be difficult in some situations because of the hematoma compression on the airway. Traumatic intubation may some situations because of the hematoma compression on the airway. Traumatic intubation may result in the rupture of the hematoma and worsening edema, leading to further airway result in the rupture of the hematoma and worsening edema, leading to further airway compromise. Fiberoptic endoscopy, as performed in case #1, may aid in performing a noncompromise. Fiberoptic endoscopy, as performed in case #1, may aid in performing a nontraumatic intubation. traumatic intubation. The second stage of treatment is management of the hematoma. This may be evacuated The second stage of treatment is management of the hematoma. This may be evacuated through a lateral cervical approach, as in case #2, and drains may be placed into the through a lateral cervical approach, as in case #2, and drains may be placed into the retropharyngeal space. Some authors prefer transoral aspiration. This is not an emergency retropharyngeal space. Some authors prefer transoral aspiration. This is not an emergency procedure and should be performed only after the airway has been secured. Waiting for the procedure and should be performed only after the airway has been secured. Waiting for the resorption of the hematoma is also possible. resorption of the hematoma is also possible. Surgery for cervical and/or retropharyngeal hematoma formation is not always mandatory. Surgery for cervical and/or retropharyngeal hematoma formation is not always mandatory. When a hematoma does not cause any dyspnea or dysphagia, hospitalization for observation When a hematoma does not cause any dyspnea or dysphagia, hospitalization for observation (24-72 hours) and supportive treatment are acceptable. (24-72 hours) and supportive treatment are acceptable. CONCLUSIONS CONCLUSIONS The development of a hematoma following The development of a hematoma following traumatic IJV cannulation is a rare but potentially traumatic IJV cannulation is a rare but potentially life-threatening event that requires early life-threatening event that requires early recognition and may require urgent intervention. It recognition and may require urgent intervention. It is important to consider inadvertent arterial is important to consider inadvertent arterial puncture and retropharyngeal hematoma puncture and retropharyngeal hematoma formation when evaluating these patients. formation when evaluating these patients. Anticoagulated patients are at a higher risk of Anticoagulated patients are at a higher risk of hematoma progression and resultant airway hematoma progression and resultant airway compromise. Early precautions to secure the compromise. Early precautions to secure the airway by intubation or tracheostomy placement airway by intubation or tracheostomy placement are critical in some cases. Others may only require are critical in some cases. Others may only require close observation in the hospital. Hematoma close observation in the hospital. Hematoma evacuation by a transoral or lateral cervical evacuation by a transoral or lateral cervical approach may also be necessary. The outcome in approach may also be necessary. The outcome in these patients is good when the diagnosis is made these patients is good when the diagnosis is made early and followed by the appropriate treatment. early and followed by the appropriate treatment. 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