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Endotracheal Tube Migration Associated With Extension During Tracheotomy
Masanori Tsukamoto DDS, PhD,
 Hitoshi Yamanaka DDS, PhD,
 Takashi Hitosugi DDS, PhD, and
 Takeshi Yokoyama DDS, PhD
Article Category: Research Article
Volume/Issue: Volume 67: Issue 1
Online Publication Date: Jan 01, 2020
DOI: 10.2344/anpr-66-04-05
Page Range: 3 – 8

resections and/or delicate reconstruction procedures, such as tissue grafting and rotational free flaps, which may be hindered by use of an oral endotracheal tube (ETT). Furthermore, such invasive surgical procedures often have significant postoperative edema negatively impacting patency of the airway, which increases the risks of morbidity and mortality. Elective tracheotomy, as a measure to provide a secure surgical airway, is often warranted to address these potential complications. While an elective tracheotomy may be performed under local anesthesia, there are still

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Management of a Patient With Tracheal Stenosis After Previous Tracheotomy
Kazumi Takaishi,
 Shinji Kawahito, and
 Hiroshi Kitahata
Article Category: Case Report
Volume/Issue: Volume 68: Issue 4
Online Publication Date: Dec 15, 2021
DOI: 10.2344/anpr-68-03-08
Page Range: 224 – 229

Iatrogenic injury secondary to tracheotomy or tracheal intubation is the most common cause of acquired tracheal stenosis in adults, 1 but each has a different etiology. 2 The frequency of tracheal stenosis after tracheotomy or tracheal intubation is 2% to 2.6% 3 , 4 and 10% to 22%, 5 – 9 respectively. Although symptoms are typically not observed in mild tracheal stenosis, 1% to 2% of patients with tracheal stenosis after tracheotomy or tracheal intubation are symptomatic or have severe tracheal stenosis. 10 – 13 Wheezing or stridor

Figure 4.; Risk factors and algorithm with recommendations for managing patients with tracheal stenosis after tracheotomy or tracheal intubation.
Kazumi Takaishi,
 Shinji Kawahito, and
 Hiroshi Kitahata
Figure 4.
Figure 4.

Risk factors and algorithm with recommendations for managing patients with tracheal stenosis after tracheotomy or tracheal intubation.

Perioperative Management of a Patient With Tongue Cancer Who Developed Pneumomediastinum Following Tracheostomy Performed to Secure the Airway
Ken Takahashi DDS,
 Tomoka Matsumura DDS, PhD,
 Yushi Abe DDS,
 Atsushi Nakajima DDS, PhD,
 Takuya Funayama DDS, PhD,
 Thunshuda Sumphaongern MD,
 Ryo Wakita DDS, PhD, and
 Shigeru Maeda DDS, PhD
Article Category: Brief Report
Volume/Issue: Volume 69: Issue 4
Online Publication Date: Dec 19, 2022
DOI: 10.2344/anpr-69-03-02
Page Range: 37 – 39

the fifth vertebral level. Figure 2. Axial computed tomography images obtained 1 week after the emergent tracheostomy. Subcutaneous emphysema and pneumomediastinum have almost disappeared. DISCUSSION The incidence of complications after tracheostomy was reported to be 5.2% in the Japanese literature. 1 In general, complications associated with tracheotomy include bleeding, pneumomediastinum, subcutaneous emphysema, infection, and

Figure 1. ; Preparation for experiment 1. General anesthesia in both groups was induced and maintained with sevoflurane in oxygen for a tracheotomy and placement of femoral artery and vein catheters. Then, a laser Doppler flowmeter probe (ALF21RTM; Advance, Tokyo, Japan) was fixed onto the palatal mucosal surface using a piece of sponge to monitor the palatal mucosal blood flow (PMBF) continuously. After the preparation (tracheotomy and placement of catheters), at least 5 minutes elapsed until the cardiovascular parameters had stabilized when control (time 0) measurements were made.
Shu Tomita,
 Shinya Yamazaki,
 Kohei Togami,
 Hitoshi Tada, and
 Hiroyoshi Kawaai
<bold>Figure 1.</bold>
Figure 1.

Preparation for experiment 1. General anesthesia in both groups was induced and maintained with sevoflurane in oxygen for a tracheotomy and placement of femoral artery and vein catheters. Then, a laser Doppler flowmeter probe (ALF21RTM; Advance, Tokyo, Japan) was fixed onto the palatal mucosal surface using a piece of sponge to monitor the palatal mucosal blood flow (PMBF) continuously. After the preparation (tracheotomy and placement of catheters), at least 5 minutes elapsed until the cardiovascular parameters had stabilized when control (time 0) measurements were made.

Figure 3. ; Preparation for experiment 2. General anesthesia in both groups was induced and maintained with sevoflurane in oxygen for a tracheotomy. A 3-Fr catheter was then inserted via the femoral artery with the tip placed in the thoracic aorta to take blood samples.
Shu Tomita,
 Shinya Yamazaki,
 Kohei Togami,
 Hitoshi Tada, and
 Hiroyoshi Kawaai
<bold>Figure 3.</bold>
Figure 3.

Preparation for experiment 2. General anesthesia in both groups was induced and maintained with sevoflurane in oxygen for a tracheotomy. A 3-Fr catheter was then inserted via the femoral artery with the tip placed in the thoracic aorta to take blood samples.

Figure 1. ; Method of general anesthesia. General anesthesia was induced by oxygen 5 L/min and 5% sevoflurane, and then a tracheotomy was performed, after which general anesthesia was maintained at oxygen 3 L/min and 3% sevoflurane. A cannula was inserted into the femoral artery, and arterial pressure was continuously recorded throughout the experiment using a polygraph and a pressure transducer.
Eri Tanaka,
 Kenji Yoshida,
 Hiroyoshi Kawaai, and
 Shinya Yamazaki
Figure 1. 
Figure 1. 

Method of general anesthesia. General anesthesia was induced by oxygen 5 L/min and 5% sevoflurane, and then a tracheotomy was performed, after which general anesthesia was maintained at oxygen 3 L/min and 3% sevoflurane. A cannula was inserted into the femoral artery, and arterial pressure was continuously recorded throughout the experiment using a polygraph and a pressure transducer.

Figure 1 ; Method of general anesthesia. General anesthesia was induced by oxygen 5 L/min and 5% sevoflurane, and then a tracheotomy was performed, after which general anesthesia was maintained at oxygen 3 L/min and 3% sevoflurane. A cannula was inserted into the femoral artery, and arterial pressure was continuously recorded throughout the experiment using a polygraph and a pressure transducer.
Kenji Yoshida,
 Eri Tanaka,
 Hiroyoshi Kawaai, and
 Shinya Yamazaki
<bold>Figure 1</bold>
Figure 1

Method of general anesthesia. General anesthesia was induced by oxygen 5 L/min and 5% sevoflurane, and then a tracheotomy was performed, after which general anesthesia was maintained at oxygen 3 L/min and 3% sevoflurane. A cannula was inserted into the femoral artery, and arterial pressure was continuously recorded throughout the experiment using a polygraph and a pressure transducer.

Figure 1.; Axial computed tomography images obtained 2 days after the emergent tracheostomy. Left: Subcutaneous emphysema (red arrows) inside the clavicle at the second thoracic vertebral level. Right: Pneumomediastinum (red arrows) at the fifth vertebral level.
Ken Takahashi,
 Tomoka Matsumura,
 Yushi Abe,
 Atsushi Nakajima,
 Takuya Funayama,
 Thunshuda Sumphaongern,
 Ryo Wakita, and
 Shigeru Maeda
Figure 1.
Figure 1.

Axial computed tomography images obtained 2 days after the emergent tracheostomy.

Left: Subcutaneous emphysema (red arrows) inside the clavicle at the second thoracic vertebral level. Right: Pneumomediastinum (red arrows) at the fifth vertebral level.