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PubMed2004

A secure method of nasotracheal tube fixation using an infant feeding tube.

A well secured endotracheal tube is very essential for the safe conduct of anesthesia. In maxillofacial surgeries, providing secure fixation of the nasotracheal tube has always been a problem. We have used an infant feeding tube that goes around the nasal septum for the fixation of the nasal endotracheal tube. This method of securing the nasotracheal tube does not hinder the surgical access, is well tolerated by patients, and is safe.

Adult↗
PubMed1975

Delayed C.N.S. complications.

Patients with esophageal stricture being treated with dilatation, who developed esophageal perforation or local peritonitis and subsequent central nervous system infection, are reviewed. It is suggested that the vertebral venous system may be the route by which the metastatic infection is carried. Physicians caring for patients with esophageal stricture, who are receiving dilatation, should be aware of the possible intracranial complications and should be alert to the first sign of central nervous system abnormality.

Brain Abscess↗
PubMed2003

Surgical airway management in Pierre Robin sequence: is there a role for tongue-lip adhesion?

OBJECTIVE: The purpose of this study was to examine the efficacy of tongue-lip adhesion (TLA) in the management of clinically significant airway obstruction associated with Pierre Robin sequence. DESIGN: The records of all children admitted to The Children's Hospital of Philadelphia with a diagnosis of Pierre Robin sequence were reviewed. Charts were reviewed for birth data, diagnosis, preoperative airway management methods, and surgical intervention. Records of infants undergoing TLA were analyzed for timing of surgery, operative technique, postoperative complications, length of hospital stay, and treatment outcome. RESULTS: Over the 28-year period 1971 to 1999, 107 patients (47 boys, 60 girls) meeting the criteria for Pierre Robin sequence were admitted for treatment. Of these, 74 (69.2%) were successfully managed by positioning alone. Surgical management of the airway was performed in the remaining 33 (30.8%) patients, 29 of whom underwent TLA and 4 of whom underwent tracheostomy. Dehiscence of the adhesion occurred in five patients (17.2%), two of whom subsequently required tracheostomy. Within the group of patients who underwent mucosal adhesion alone, the dehiscence rate was 41.6%. When the adhesion included muscular sutures, however, dehiscence was not observed in any patient. Of the 24 patients in whom primary TLA healed uneventfully, airway obstruction was successfully relieved in 20 (83.3%). Failure of a healed TLA to relieve the airway obstruction resulted in conversion to a tracheostomy in four patients. Six patients who underwent TLA (20.7%) ultimately required a tracheostomy; five of these patients (83.3%) were syndromic. Of patients requiring preoperative intubation, 42.9% ultimately required tracheostomy. CONCLUSION: TLA successfully relieves airway obstruction that is unresponsive to positioning alone in the majority of patients with Pierre Robin sequence and should therefore play an important role in the management of these infants.

Age Factors↗
PubMed2003

Management of infants with Pierre Robin sequence.

OBJECTIVE: Several methods of treating babies with Pierre Robin sequence have been described since the condition itself was first documented in 1923. The main aim of treatment has been to relieve upper airway obstruction. Treatment methods used range from positioning of the baby to invasive surgery. The aim of this article was to describe the assessment, treatment, and monitoring methods used for babies referred with Pierre Robin sequence (PRS). SETTING/PATIENTS: From December 1995 to May 2000, 22 consecutive patients were admitted to Birmingham Children's Hospital with PRS. Their airway and nutritional status were assessed and continuously monitored. INTERVENTIONS: Treatment concentrated on the relief of airway obstruction with a nasopharyngeal airway (NPA) and nutritional support of the babies until they grew out of their respiratory and feeding difficulties. MAIN OUTCOME MEASURES: Outcome measures were oxygen saturation, growth of the babies, and the need for surgery. RESULTS: All babies were managed successfully with an NPA and nutritional support. No baby required surgery, and the majority showed good weight gain. CONCLUSION: Relieving airway obstruction by NPA is an effective and safe treatment for babies with PRS until they have grown out of their respiratory and feeding difficulties. It avoids the need for surgery and can be used on neonatal wards using the monitoring described.

Airway Obstruction↗
PubMed1990

Radiographic detection of esophageal malpositioning of endotracheal tubes.

Insertion of an endotracheal tube into the esophagus is an infrequent but life-threatening complication of endotracheal intubation. This complication is difficult to detect on standard, anteroposterior, portable chest radiographs because the incorrectly placed endotracheal tube is usually projected over the tracheal air column. To evaluate the use of chest radiographs to detect the malposition, we performed a two-part study. First, we analyzed the findings on chest radiographs in six patients in whom an endotracheal tube had been inserted in the esophagus, and then we analyzed 328 portable chest radiographs of patients with both endotracheal and nasogastric tubes to determine the best radiographic position for identifying the exact location of an endotracheal tube. The findings in the six patients included projection of the tube lateral to the trachea (five patients), gastric distension (four patients), esophageal air (two patients), and deviation of the trachea by the balloon cuff (one patient). The study of the portable chest radiographs showed that the endotracheal tube position could be identified correctly in 81 (92%) of 88 of the films made with the patient in a 25 degrees right posterior oblique position. The trachea and esophagus were superimposed in 25 (96%) of 26 of the radiographs made with the head turned to the left and with the patient in a 25 degrees left posterior oblique projection. Our results show that by positioning patients for chest radiographs in a 25 degrees right posterior oblique position, the location of endotracheal tubes can be identified accurately.

Esophagus↗
PubMedDate not supplied

Middle ear pressure during and after prolonged nasotracheal and/or nasogastric intubation.

Changes in middle ear pressure during and after prolonged nasotracheal and/or nasogastric intubation were studied in 47 patients who had been intubated, for various reasons, during 1-24 days. All the patients had a negative middle ear pressure; in 84% of the ears the pressure was -200 mm of water or less. In most ears the pressure fell rapidly after the intubation, being most negative before extubation and during the first 2 days after. In all patients who could be followed the pressure returned to normal. The normalization was slow, depending upon the duration in intubation. Possible causes, such as abolished ventilation of the rhinopharynx, insufficient swallowing, mechanical occlusion of the tubal orifice, and the influence of anaesthetic gases are discussed. During the period after extubation the most probable cause is irritative and inflammatory reaction of the mucosa, leading to internal tubal occlusion.

Adult↗
PubMed2002

Distinct mechanisms for cross-protection of the upper versus lower respiratory tract through intestinal priming.

A main feature of the common mucosal immune system is that lymphocytes primed in one mucosal inductive site may home to distant mucosal effector sites. However, the mechanisms responsible for such cross-protection remain elusive. To address these we have used a model of local mucosal infection of mice with reovirus. In immunocompetent mice local duodenal priming protected against subsequent respiratory challenge. In the upper respiratory tract this protection appeared to be mainly mediated by specific IgA- and IgG2a-producing B cells, whereas ex vivo active effector memory CTL were found in the lower respiratory tract. In accordance with these findings, clearance of reovirus from the lower respiratory tract, but not from the upper respiratory tract, of infected SCID mice upon transfer of gut-primed lymphocytes depended on the presence of T cells. Taken together this study reveals that intestinal priming leads to protection of both the upper and lower respiratory tracts, however through distinct mechanisms. We suggest that cross-protection in the common mucosal immune system is mediated by trafficking of B cells and effector memory CTL.

Administration, Intranasal↗
PubMed1996

Increased success of blind nasotracheal intubation through the use of nasogastric tubes as a guide.

We were able to improve the success rate of blind nasotracheal intubation by using nasogastric tubes as a guide during intubation, first, for passing the endotracheal tube through the nasal cavity, and second, passing it from the pharynx to the larynx. By adding both sedation by modified neuroleptanalgesia (NLA) and topical and transtracheal administration of lidocaine, our technique became safer and smoother. We have completed 36 cases without accident, with an average time for intubation of 8.25 min. The Rüsh spiral tube was thought to be the most suited to this form of intubation because of the 90 degrees cut of its tip, its high-volume cuff, and its flexibility in all directions. These features are useful for hearing breath sounds, raising the tip of the tube by inflation of the cuff, and advancing the tube in a turning motion.

Anesthesia, Dental↗