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When other airway management techniques fail in an emergency, establishing a surgical airway may be life-saving. Cricothyroidotomy is the preferred method for emergent surgical airway placement in adolescents and adults when endotracheal intubation is unsuccessful. The procedure involves inserting a tube through an incision in the cricothyroid membrane into the trachea. This method is favored over tracheostomy in emergencies because it requires less surgical expertise, equipment, and time. Although rarely needed due to advancements in airway management, emergency department and critical care providers must be prepared to perform a cricothyroidotomy when necessary. This activity for healthcare professionals is designed to enhance learners' proficiency in performing a cricothyroidotomy skillfully and determining potential candidates for this intervention. Participants will deepen their understanding of the relevant anatomy and procedure steps, indications, and contraindications. Cricothyroidotomy carries several potential complications, which can be mitigated through proper technique, as well as strategies like ultrasound guidance and hemostasis, all of which will be discussed. Improved competence will equip clinicians to collaborate efficiently within an interprofessional team caring for critically ill patients with compromised airways. Objectives: Evaluate patients for cricothyroidotomy indications and contraindications based on clinical presentation. Implement the cricothyroidotomy steps proficiently, including identifying the cricothyroid membrane, making an incision, and securing the airway with an appropriate device. Apply best practices in mitigating the potential complications of cricothyroidotomy. Collaborate with the interprofessional team to treat and monitor critically ill patients with compromised airways to improve outcomes. Access free multiple choice questions on this topic.

Surgical airway techniques have been described for thousands of years, evolving significantly over time. Hieroglyphics indicate that ancient Egyptian surgeons may have practiced some form of this intervention. In 100 BC, Asclepiades of Bithynia completed the first documented elective surgical airway, though the term “tracheotomy” was not introduced until 1649 by Thomas Fienus.[1] Despite its 5,000-year history, the surgical airway remained an informal practice until the 20th century. In 1909, Dr. Chevalier Jackson, a laryngologist at Jefferson Medical School in Philadelphia, described a procedure he termed “high tracheostomy.”[2] The method bore similarities to cricothyroidotomy and was used for patients with inflammatory airway conditions such as diphtheria.[3][2] After reviewing nearly 200 cases of tracheal stenosis, Dr. Jackson ultimately discouraged the use of his technique, leading to its decline in practice.[4] In the 1970s, cricothyroidotomy returned to mainstream practice when Brantigan and Grow published a series involving 655 patients undergoing elective cricothyroidotomy. The review demonstrated a low complication rate, with only 0.01% of patients developing subglottic stenosis during prolonged mechanical ventilation.[5] Emergency cricothyroidotomy currently remains the preferred surgical rescue technique for adolescents and adults. Over the last 100 years, various methods have been developed to establish airway control through the cricothyroid membrane (CTM). Three primary approaches are presently in use. Jet ventilation involves the percutaneous insertion of a small-caliber cannula, such as an intravenous angiocatheter, through the CTM. High-pressure oxygen is then insufflated into the trachea. However, because this technique relies on an unobstructed upper airway for passive expiration, it does not prevent hypercapnia and is unsuitable for prolonged ventilation. The Seldinger technique utilizes commercially available kits containing large-caliber cannulas, typically at least 4 mm in internal diameter, which are inserted percutaneously over a guidewire. These devices allow for low-pressure ventilation and are available from various manufacturers.

Jet ventilation involves the percutaneous insertion of a small-caliber cannula, such as an intravenous angiocatheter, through the CTM. High-pressure oxygen is then insufflated into the trachea. However, because this technique relies on an unobstructed upper airway for passive expiration, it does not prevent hypercapnia and is unsuitable for prolonged ventilation. The Seldinger technique utilizes commercially available kits containing large-caliber cannulas, typically at least 4 mm in internal diameter, which are inserted percutaneously over a guidewire. These devices allow for low-pressure ventilation and are available from various manufacturers. The open surgical approach, specifically the rapid "scalpel-finger-bougie" technique, is the preferred method in emergency medicine. This technique requires minimal equipment and is readily available in the emergency department.[6][7] The procedure involves making an incision through the CTM with a scalpel, inserting a finger into the trachea as a placeholder, and advancing a bougie to guide the placement of a cannula. The incidence of surgical airway placement in prehospital and emergency department settings has declined over time. Recent data estimate cricothyroidotomy rates in prehospital care between 0.06% and 0.72%, while rates in emergency departments range from 0.14% to 1.4%.

Early Complications Early complications of cricothyroidotomy include bleeding, endobronchial intubation, laceration or fracture of local structures, posterior tracheal injury, unintentional tracheostomy, false tract formation, and hypoxia.[27][28] Bleeding is the most commonly reported complication, though some hemorrhage is expected during CTM incision and dissection due to the presence of several overlying or adjacent blood vessels. Significant hemorrhage occurs in up to 50% of cases and, in rare instances, may lead to asphyxiation or aspiration. Bleeding in the cricothyroid area can also reduce visibility during airway management. If severe bleeding occurs, direct pressure or packing at the site can help control the sources. In such cases, the provider may need to rely on palpation and tactile feedback rather than direct visualization. For example, detecting the "clicking" sensation of a bougie or ET tube as it passes over the tracheal rings can help confirm correct placement. The American Heart Association recommends hemostatic dressings as an adjunct to direct manual pressure for managing life-threatening bleeding, as these materials promote faster clotting and reduce blood loss more effectively than pressure alone. First aid providers can use these dressings to enhance bleeding control, though current evidence does not support one specific type over another.[29] Hemostatic dressings have been used to control traumatic junctional zone injuries where tourniquets are inappropriate, such as those in the neck, and direct pressure may be insufficient.[30][31] Right mainstem bronchus intubation can occur when the tube is too long or advanced too far. This complication arises in up to 46% of cricothyrodotomies and is more frequent with ET than tracheostomy tubes due to their greater length. To prevent misplacement, the ET tube should be advanced only until the balloon crosses the CTM incision, reducing the likelihood of endobronchial intubation.

Right mainstem bronchus intubation can occur when the tube is too long or advanced too far. This complication arises in up to 46% of cricothyrodotomies and is more frequent with ET than tracheostomy tubes due to their greater length. To prevent misplacement, the ET tube should be advanced only until the balloon crosses the CTM incision, reducing the likelihood of endobronchial intubation. Laceration of local structures, including the cricoid and thyroid cartilages and tracheal rings, may result from misplaced incisions. This risk may be minimized by accurately identifying the CTM through palpation or ultrasound before making an incision. If misplacement occurs, the incision may be extended superiorly or inferiorly, depending on its location, to expose the CTM properly.[32] Cricoid and thyroid cartilage fractures may arise if an oversized tube is forced through the CTM. If placing an oversized tube is not possible, a bougie should be inserted through the tract into the airway, followed by railroading a smaller cannula over the bougie. (Source: Mazza et al, 2021) Posterior tracheal perforation or injury can occur during needle cricothyroidotomy if the needle is advanced too far dorsally after penetrating the CTM. Posterior tracheal injury may lead to more severe complications, including esophageal damage and mediastinal bleeding, infection, or free air collection, all of which may significantly impact patient outcomes. Using a shorter needle, which limits excessive insertion depth, along with precise technique and careful control of the needle, can help minimize this risk.[33] Additionally, uniquely shaped incision tools that incorporate depth guards, such as the Cric-Guide, may help ensure proper insertion depth and reduce the likelihood of posterior tracheal damage. (Source: Vanner et al, 2023) Unintentional tracheostomy occurs when the incision is made too low or in an incorrect location, causing tracheal damage. Careful identification of the CTM and precise technique are essential to avoid this complication. If significant tracheal damage occurs or if a stable airway cannot be maintained due to incorrect placement, conversion to a formal tracheostomy may be necessary.[34]

Unintentional tracheostomy occurs when the incision is made too low or in an incorrect location, causing tracheal damage. Careful identification of the CTM and precise technique are essential to avoid this complication. If significant tracheal damage occurs or if a stable airway cannot be maintained due to incorrect placement, conversion to a formal tracheostomy may be necessary.[34] A false tract forms when an instrument deviates from the tracheal lumen, often due to poor visualization, incorrect technique, or difficult anatomy. False tracts may cause failed ventilation, subcutaneous emphysema, hemorrhage, infection, and esophageal perforation. This complication may be prevented by ensuring proper identification of the CTM before incision and using a midline, caudally directed approach when inserting a scalpel or needle. In a scalpel-first approach, the incision site should be maintained using a tracheal hook, scalpel handle, pinky finger, or bougie after the horizontal stab incision. In a needle-first technique, a shallow caudal angle should be avoided. If a false tract is suspected, withdrawing the instrument and reassessing the airway landmarks before reattempting the procedure can help ensure correct placement. Hypoxia during cricothyroidotomy can occur due to delays in establishing a surgical airway, improper technique, or complications like tube obstruction or malposition. Rapid execution, preoxygenation, and proper technique are crucial to minimize the risk of hypoxia. If hypoxia develops, immediate actions like confirming or adjusting tube placement, suctioning obstructions, and adjusting ventilation parameters are necessary to restore oxygenation. Infection following cricothyroidotomy may present either early or late. Antibiotic coverage should be tailored to the clinical presentation, taking into account the depth and timing of the infection, as well as potential antibiotic resistance.[35] Late Complications Late complications of cricothyroidotomy may include scarring, fistula formation, subglottic stenosis, dysphagia, and voice changes. Subglottic stenosis, fistulas, and scarring often necessitate surgical treatment. Dysphagia and voice changes may be managed conservatively through therapy if mild, but severe cases may require surgical intervention.[36][37]

Late complications of cricothyroidotomy may include scarring, fistula formation, subglottic stenosis, dysphagia, and voice changes. Subglottic stenosis, fistulas, and scarring often necessitate surgical treatment. Dysphagia and voice changes may be managed conservatively through therapy if mild, but severe cases may require surgical intervention.[36][37] In the context of a CICO scenario, an emergent cricothyroidotomy offers life-saving benefits that far outweigh the potential risks. Reported complication rates vary, ranging from 0% to 54%, influenced by clinical factors, the level of provider expertise, and the procedure’s setting.

Successful management of difficult airways requires close collaboration among interprofessional team members, including physicians, prehospital providers, advanced practice providers, nurses, and respiratory therapists. Regular review of advanced airway techniques, including surgical airway procedures, is essential for interprofessional contributors. Team confidence and competence may be enhanced through practice with simulator models (Source: Hauglum et al, 2024). The physician overseeing airway management should clearly verbalize each step of the airway plan, particularly when a cricothyroidotomy or surgical airway is necessary. This communication ensures the team is prepared with the appropriate equipment and addresses potential cognitive barriers to performing the procedure. Premarking anatomical landmarks on the neck may also prove beneficial. Open communication among all team members is crucial as the patient’s condition evolves. Effective interprofessional coordination is key to achieving positive patient outcomes.