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jtitle_s:("anesti Prog")
1.  A Premix of 50% N2O — 50% O2 Used for Sedation During Dental Procedures 
Anesthesia Progress  1983;30(6):197-198.
The use of a premixed source of 50% N2O and 50% O2 diluted with room air was evaluated in a series of 32 patients undergoing a routine dental procedure. Dependent variables observed were the flow rates of gas necessary to achieve adequate sedation, patient acceptance of the administration method and clinical signs of hypoxia. The median flow rate observed when patients were sedated was 3 liters per minute (range 1 to 5 liters per minute). Twenty-four patients tolerated the dental procedure without need to alter the initial dose, 6 required an increased dose and 2 required less of the gas mixture. No clinical signs of diffusion hypoxia were noted in this small sample. The results of this open clinical evaluation suggest that use of a premixture of 50% N2O and 50% O2 results in adequate sedation, is well tolerated by patients and dose not result in any clinically obvious signs of hypoxia.
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PMCID: PMC2235785  PMID: 6585158
2.  Evaluation of ECG Changes in Dentists Treating Awake Patients 
Anesthesia Progress  1983;30(6):193-196.
Twenty-eight male dentists were evaluated with 24 hour ambulatory ECG while working on awake patients. Only one of the participants showed any sign of stress induced arrhythmias after a patient fainted. The remainder of the subjects were indistinguishable from previously studied normal populations.
PMCID: PMC2235784  PMID: 6585157
3.  The Effects of Nitrous Oxide Administration in the Healthy Elderly: N2O Elimination and Alveolar CO2 
Anesthesia Progress  1983;30(6):187-192.
Healthy young and elderly males were administered sedative concentrations of nitrous oxide/oxygen (N2O/O2) under a protocol designed to mimic that used in a dental operatory. Samples of end-tidal expired gas were taken at the end of 30-minutes inhalation of, and periodically for 70 minutes after withdrawal from, nitrous oxide/oxygen. Samples were analyzed to monitor the decline of alveolar nitrous oxide levels and any changes in alveolar carbon dioxide levels, to determine if there were any age-related differences. The fall in alveolar N2O following cessation of administration was rapid, and in a double-exponental manner as was expected. No age-related difference in N2O decline was observed. Alveolar carbon dioxide (CO2) levels were lower and more variable in the elderly group. Both groups exhibited elevated CO2 levels at the end of the N2O period, and an unexplained rise in CO2 at approximately 30 min post N2O.
PMCID: PMC2235781  PMID: 6424516
4.  Surgical Treatment of Chronic Orofacial Pain 
Anesthesia Progress  1983;30(6):180-186.
There are many conditions in which chronic orofacial pain is a major diagnostic and therapeutic problem. It is generally accepted that surgical treatment for these chronic pain problems should be resorted to only when more conservative treatments have been ineffective. Literature concerning selected orofacial pain problems is reviewed and the indications for surgical management are discussed.
PMCID: PMC2235779  PMID: 6370045
chronic pain; trigeminal neuralgia; glossopharyngeal neuralgia; atypical facial pain; temporomandibular joint
5.  Stress-Induced Urticaria Associated with Local Anesthetic Administration 
Anesthesia Progress  1983;30(6):199-200.
A case is reported in which chronic urticaria developed following local anesthetic administration in a 21-year old Chinese-American male who had presented for routine dental care. An in-depth medical history and intradermal skin-testing failed to disclose a reason for this reaction. Referral to an allergist revealed a previously unknown underlying emotional tension which contributed to the development of chronic urticaria. A brief trial of hydroxyzine (Vistaril), an antihistaminic and anxiolytic medication, was successful in controlling this condition. This case illustrates the importance of the evaluation of the emotional status as a vital component of a comprehensive medical history.
PMCID: PMC2235778  PMID: 6585159
6.  Response to Protopoppas Case 
Anesthesia Progress  1983;30(6):178.
PMCID: PMC2235782  PMID: 19598667
7.  Syncope Versus Loss of Consciousness 
Anesthesia Progress  1983;30(6):178.
PMCID: PMC2235780  PMID: 19598666
8.  A Technique for an Oral Pharyngeal Partition During Non-Endotracheal Anesthesia1 
Anesthesia Progress  1983;30(5):156.
In summary, an effective technique for position of the oral pharynx during ambulatory anesthesia is described. It is effective for preventing liquid and particulate matter from entering the oral pharynx during ambulatory anesthesia, and in addition, provides retraction of the tongue and lingual tissues from the surgical field.
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PMCID: PMC2515403  PMID: 6585154
11.  Rupture of the Pulmonary Alveoli During General Anesthesia1,2 
Anesthesia Progress  1983;30(5):157-158.
The rupture of pulmonary alveoli during the induction of general anesthesia is a significant complication of general anesthesia that has been seldom reported in our literature. This article documents this occurrence in a patient scheduled for elective orthognathic surgery. The diagnosis and treatment are discussed.
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PMCID: PMC2515399  PMID: 6585155
12.  The Biologic Basis of Pain and Analgesia: The Role of Situational Variables in Pain Control 
Anesthesia Progress  1983;30(5):137-146.
The understanding of human pain perception, nociceptive systems, and analgesia is complicated by the variety of psychological, social and contextual variables that may interact with noxious sensory input to produce inexplicable changes in the strength, unpleasantness or quality of pain that is experienced. Consequently, many clinical and experimental studies aim to elucidate the mechanism by which psychological variables affect both neural coding and the resulting pain perception. Recently, more attention has focused on situational variables as important modifiers of pain and analgesic efficacy. Situational variables refer to the specific combination of psychological and contextual factors that exist in a particular pain situation. These variables represent a unique interaction between the individual experiencing pain and the context in which the pain is experienced.
This article reviews the role of situational variables for modifying multiple dimensions of pain perception. Observations from human and animal research studies have been integrated to illustrate the potential of situational variables for enhancing or for reducing pain that is produced by a noxious stimulus. Clinical and experimental research designs are presented which may be used to identify relevant situational variables, to determine their effect on pain perception, to assess their interaction with analgesic efficacy, and to evaluate their mechanisms of action.
PMCID: PMC2515398  PMID: 6585151
13.  The Reliability and Validity of the Trieger Test as a Measure of Recovery from General Anesthesia in a Day-Care Surgery Unit1 
Anesthesia Progress  1983;30(5):152-155.
A group of 23 patients was investigated with the Trieger Test after general anesthesia. The reliability of the test was evaluated by the performance of a control group on four consecutive trials (F = 0.24). The validity of the test was demonstrated by an evaluation of the performance of patients 1½, 2½ and 3½ hours after anesthesia (F = 15.86, p < .0001).
PMCID: PMC2515392  PMID: 6585153
15.  Response to 20/20 Program 
Anesthesia Progress  1983;30(5):135.
PMCID: PMC2515405  PMID: 19598663
16.  Anesthesiology Residency Training for Dentists 
Anesthesia Progress  1983;30(5):135-136.
PMCID: PMC2515394  PMID: 19598664
18.  Scientific Abstracts 
Anesthesia Progress  1983;30(4):122-123.
PMCID: PMC2235776
21.  Jorgensen Memorial Lecture: Drug Interactions 
Anesthesia Progress  1983;30(4):106-112.
PMCID: PMC2235769  PMID: 19598658
22.  Medical-Legal Update 
Anesthesia Progress  1983;30(4):120-121.
PMCID: PMC2235768  PMID: 19598662
24.  Scientific Abstracts 
Anesthesia Progress  1983;30(3):89-90.
PMCID: PMC2515443

Results 1-25 (48)