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Biomedical subjects

Sreenivasa S Moorthy

Publications and source records attributed to Sreenivasa S Moorthy.

6 recordsLinked to original sources

Anesthetic management of a patient with tracheal neurofibroma.

A 43-year-old man with neurofibromatosis and tracheal neurofibroma of the mid-trachea and respiratory difficulty was brought to the operating room for tracheostomy. After talking to the surgeons and viewing the computerized axial tomography, tracheal intubation was done under local anesthesia. Then, general anesthesia was provided for biopsy and debulking of the tumor, followed by tracheostomy. The patient had a number of surgeries later and the trachea was decannulated.

Adult↗

Management of airway in patients with laryngeal tumors.

STUDY OBJECTIVE: To describe our systematic approach to securing the airway in patients with laryngeal tumors, developed over a 10-year period. DESIGN: Retrospective analysis. SETTING: University-affiliated veterans administration medical center. PATIENTS: Eight hundred one patients presenting for laryngeal tumor surgery in a 10-year period, 285 of whom underwent tracheostomy (25 with local anesthesia and 260 with general anesthesia). INTERVENTIONS: Preoperative examination, including history, physical examination, computed axial tomography and/or magnetic resonance imaging, and ear, nose, and throat surgeons' evaluation via indirect laryngoscopy or fiberoptic bronchoscopy were performed before the anesthesiologist's interventions. Local (topical) anesthesia and mild sedation were used for laryngeal evaluation with fiberoptic bronchoscopy. Tumor grade was then established, which determined how the airway would be secured: general anesthesia induction, receive topical anesthesia for awake, direct laryngoscopy, and tracheal intubation, or undergo tracheostomy with local anesthesia. MEASUREMENTS AND MAIN RESULTS: When the airway was secured, surgeons performed the biopsy, (any) tumor debulking, laser excision, or tracheostomy to establish both the airway and the diagnosis. Pulmonary function, including flow-volume loops and blood gas analysis were also useful in evaluating the degree of obstruction and gas exchange. In the event of respiratory distress, tracheostomy was performed after tracheal intubation or with local anesthesia, followed by direct laryngoscopy and biopsy. Depending on the diagnosis, further surgery and radiation treatment were planned next. CONCLUSIONS: With these guidelines, we have reduced the frequency of emergencies because of a lost airway, bleeding, or dislodging of tumor.

Administration, Topical↗

Apnea and seizures following retrobulbar local anesthetic injection.

Surgery on the eye is performed using topical anesthesia, retrobulbar anesthesia, peribulbar anesthesia, and general anesthesia. Retrobulbar anesthesia is associated with a number of complications that include apnea (respiratory arrest), seizures, or both. Although these complications are transient and self-limiting, they can be life-threatening if not recognized and treated early. We report two patients who developed apnea, one of whom had cardiorespiratory arrest; and two other patients who presented with seizures. We provided ventilation with 100% oxygen, treated the hypertension with nicardipine, and the tachycardia with esmolol. The patients did not have any residual complications.

Aged↗