Publications by authors named "Naohiro Ohshita"

Article Synopsis
  • This report discusses a case of a 22-year-old man who experienced severe gagging during dental treatment, which was linked to a hiatus hernia and reflux esophagitis.
  • The patient had dental issues and was referred to internal medicine, where changes in eating habits and medication greatly reduced the gagging symptoms.
  • The case highlights the importance of interdisciplinary collaboration in diagnosing and managing underlying medical conditions that can affect dental treatments.
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Restless legs syndrome (RLS) is a neurological sensory disorder associated with sensory and motor symptoms that most commonly occur at night and during periods of rest. It is characterized by altered or abnormal sensations primarily in the legs and the urge to move the associated limbs. Perioperative procedures, including general anesthesia, can cause exacerbations of RLS.

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Background: Postoperative Nausea and Vomiting (PONV) is a common complication of general anesthesia. Several kinds of antiemetics, including 5-Hydroxytryptamine3 (5-HT3) receptor antagonists, and Neurokinin-1 (NK-1) receptor antagonists have been used to treat PONV.

Objectives: To compare the antiemetic effect of NK-1 receptor antagonists, including fosaprepitant.

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Study Objective : the incidence of postoperative nausea and vomiting (PONV) following single-injection intraarticular anesthesia was compared to that following continuous epidural anesthesia. Design : Prospective, double-blind, randomized study. Setting : University-affiliated teaching hospital.

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Dravet syndrome (DS) is a rare and severe form of epilepsy that begins in infancy. This is particularly burdensome because repeated epileptic seizures lead to cognitive decline. We describe the case of a 12-year-old girl who was diagnosed with DS and was scheduled to have gingival reduction around her mandibular molars.

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The aim of this study was to assess knowledge, attitude, behavior, and compliance concerning infection control among dental practitioners in a dental university hospital in Japan. A 12-item questionnaire about infection control during radiographic procedures was distributed to 686 dental personnel working at Osaka Dental University. The questionnaire collected information on occupation and the use of gloves, holders, door handles, control panels, dental chairs, protectors, tube head, tube arms, tube cones, and keyboards for personal computers.

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A 54-year-old woman diagnosed with multiple sclerosis (MS) at the age of 19 years was scheduled to undergo temporomandibular joint mobilization. She was currently in a remission phase from her MS but with persistent sequelae, including impaired eyesight and muscle weakness of the limbs. In addition, the blood vessels in her upper limbs were compromised by the formation of internal shunts secondary to vascular prosthesis replacements for plasma exchange therapy in MS.

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Cetuximab is a drug targeting the epidermal growth factor receptor, which is indicated for the treatment of unresectable advanced or recurrent head and neck or colorectal cancer. Cetuximab also enhances the cytotoxic effects of radiation in squamous cell carcinoma. The severity of infusion reactions (IR) is categorized from grade 1 to 5; grades 3 and 4 are associated with life-threatening reactions (anaphylaxis), whereas grade 5 indicates death.

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We describe the case of a 37-year-old woman who had been diagnosed with Ehlers-Danlos syndrome (EDS) 4 years earlier and was scheduled to undergo removal of synovial chondromatosis in the temporomandibular joint. EDS is a heritable connective tissue disorder and has 6 types. In this case, the patient was classified into EDS hypermobility type.

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We report a case of general anesthesia for male infant with a chromosome 14q terminal deletion syn- drome. In this syndrome, congenital abnormalities such as brain malformations, gastrointestinal and male geni- tourinary abnormalities have been reported as well as some cranio-facial features (micrognathia, dysplastic low-set ears, telecanthus and small mouth, etc.).

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Charcot-Marie-Tooth disease (CMTD) is a hereditary peripheral neuropathy and is characterized by progressive muscle atrophy and motor-sensory disorders in all 4 limbs. Most reports have indicated that major challenges with general anesthetic administration in CMTD patients are the appropriate use of nondepolarizing muscle relaxants and preparation for malignant hyperthermia in neuromuscular disease. Moderate sedation may be associated with the same complications as those of general anesthesia, as well as dysfunction of the autonomic nervous system, reduced perioperative respiratory function, difficulty in positioning, and sensitivity to intravenous anesthetic agents.

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Article Synopsis
  • A study was conducted to evaluate a new anesthesia approach using a combination of propofol and volatile anesthesia to reduce postoperative nausea and vomiting in patients undergoing laparoscopic gynecological surgery.
  • The research involved three groups of patients: one using sevoflurane, another using propofol, and a third using both propofol and sevoflurane, with assessments made on postoperative nausea, vomiting, and pain.
  • Results showed that the groups using propofol (with or without sevoflurane) had significantly better outcomes regarding nausea compared to the sevoflurane-only group, indicating that this combined approach, termed "combined intravenous-volatile anesthesia (CIVA)," is effective in reducing postoperative nausea.
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Background: We investigated the effects of a novel method of anesthesia combining propofol and volatile anesthesia on the incidence of postoperative nausea and vomiting in patients undergoing laparoscopic gynecological surgery.

Methods: Patients were randomly divided into three groups: those maintained with sevoflurane (Group S; n = 42), propofol (Group P; n = 42), or combined propofol and sevoflurane (Group PS; n = 42). We assessed complete response (no postoperative nausea and vomiting and no rescue antiemetic use), incidence of nausea and vomiting, nausea severity score, vomiting frequency, rescue antiemetic use, and postoperative pain at 2 and 24h after surgery.

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Tension pneumothorax is a rare but potentially life-threating complication of laparoscopic fundoplication. Electrocardiogram (ECG) changes may be used in the diagnosis of intraoperative tension pneumothorax. This case study examines a pediatric patient who underwent laparoscopic fundoplication.

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Lubag disease is a genetic X-linked dystonia-parkinsonism syndrome afflicting Filipino men. This disease is characterized by dystonia dominating the first 10-15 years of the disorder, which is associated with or replaced by parkinsonian features in later years of life. A 49-year-old man with Lubag disease underwent general anesthesia for deep brain stimulation (DBS) surgery.

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We describe a case of dextran-induced anaphylactic shock during general anesthesia. A 34-year-old woman was scheduled for partial hepatic resection under general anesthesia. General anesthesia was induced with intravenous remifentanil, thiamylal and rocuronium, and was maintained with oxygen, air, sevoflurane and remifentanil.

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Anaphylaxis during anesthesia is a rare but life-threatening event. Sugammadex is a recently introduced drug that was specifically designed for the reversal of rocuroium and vecuronium-induced neuromuscular block. We describe the cases of a 74-year-old man and a 29-year-old man who developed an anaphylactoid reaction to sugammadex, presenting with cardiovascular collapse.

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A 31-year-old woman with amyotrophic lateral sclerosis (ALS) with respiratory muscle paralysis was scheduled for tracheotomy. After applying standard neuromuscular monitoring devices, general anesthesia was induced and maintained with propofol, remifentanil, rocuronium, and sevoflurane. Sugammadex is a potent agent for reversal of neuromuscular blockade by rocuronium.

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We describe anesthetic management of a patient with airway stenosis due to a tracheal tumor involving the carina. A 68-year-old man developed dyspnea and was scheduled for YAG laser surgery under general anesthesia. Awake fiberoptic intubation was selected for anesthesia induction, and percutaneous cardiopulmonary support (PCPS) was ready to be established prior to induction of anesthesia.

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Brugada syndrome is characterized by an electrocardiograph pattern of right bundle-branch block and has an increased risk for cardiac arrest due to malignant arrhythmia. We describe the successful anesthetic management for electroconvulsive therapy in a patient with Brugada electrocardiograph pattern. Patients with Brugada ECG pattern are not recommended to use neostigmine which augments ST elevation.

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We experienced anesthetic management of a patient with Becker muscular dystrophy. He had advanced dilated cardiomyopathy and high serum CK in the preoperative examinations. Anesthesia was planned to avoid triggering malignant hyperthermia or rhabdomyolysis and hemodynamic changes.

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We evaluated Disposable Crystal Laryngoscope Blades in terms of preventing infection. Most anesthesiologists were satisfied with the view offered by the Disposable Crystal Laryngoscope Blade; however more force is necessary to lift the epiglottis during intubation. It may be more difficult to use by residents, inexperienced anesthesiologist, or emergency medical technicians, although the Disposable Crystal Laryngoscope blade is useful for preventing infection.

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Angelman syndrome is a hereditary disease described by Angelman. The clinical features of Angelman syndrome are characterized by mental retardation, puppet-like ataxia, easily excitable personality, seizures, paroxysmal laughter, strabismus and macroglossia. A 4-year-old girl with Angelman syndrome underwent strabismus repair under general anesthesia.

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A 17-year-old man with fracture of the mandible underwent open fixation under general anesthesia. He was an athlete of the rugby suffering the fracture in a match. His preoperative physical examinations were normal except for I degrees atrioventricular block on electrocardiogram (ECG).

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We studied the effects of electrical stimulation of the inferior alveolar nerve (IAN) on cardiovascular responses in cats. There was statistical correlation between cardiovascular response and prestimulus mean arterial blood pressure (MABP) and heart rate (HR). A trigeminal depressor response (TDR) was induced when the prestimulus MABP and HR were above 95 mm Hg and 140 beats/min, respectively.

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