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Results 201 - 250 of 261
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Frank R - - 1994
The amount of off-site pesticide spray drift from aerial and ground applications was determined at 26 sites across Ontario. These were conducted along transects, parallel and at right angles to the flight path during aerial spray applications and at right angles to the direction of ground spray applications. All sites ...
Barlow R J - - 1993
BACKGROUND: The incidence of delayed pressure urticaria (DPU) may have been underestimated, particularly in patients with widespread wheals of concurrent idiopathic urticaria, because of difficulty in recognizing the association between pressure-related swellings and the preceding physical stimulus. Diagnostic tests for DPU have not been done routinely in studies of urticaria ...
Brimacombe J - - 1993
We have evaluated the effects of cricoid pressure on laryngeal mask airway (LMA) insertion after an elective rapid sequence induction in 100 patients allocated randomly to two groups. An attempt was made to insert the LMA after application of cricoid pressure in one group and with no pressure in the ...
Sawada Y - - 1993
To study how much pressure develops under a pressure garment, and how to obtain adequate effective pressure for scar treatment, we have used garments in combination with sponge and plastic plates in human volunteers. The pressures increased significantly when a sponge or sponge and plastic plate were used beneath the ...
Ward R S - - 1993
Several companies currently market anti-burn-scar pressure garments to burn centers. Because of the numerous available choices, decisions about the reasons for selecting a garment are often confusing to those who are responsible for ordering the supports. This study was conducted to assist in decision making about garment selection by determining ...
Moynihan R J - - 1993
BACKGROUND: The use of cricoid pressure for the possible prevention of regurgitation of gastric contents during induction of anesthesia in both adults and children has been recommended. However, equally important is the technique in possibly preventing insufflation of gas into the stomach. This study was designed to determine the efficacy ...
Kortschot H W - - 1993
Several aircrew members of a Boeing 737 aircraft were referred to our department because they suffered from a barotrauma. The fast rate of pressure change during the descent of a Boeing 737 aircraft, as compared to the Boeing 747, DC-10 and Airbus 310 aircrafts, is most likely the cause of ...
Ishizuka I - - 1993
In order to develop a more rational impression method, we examined the relationship between impression method and denture pressure supportability through the denture. Measured with denture bases prepared from impressions taken under various pressures, pressure supportability generally increased with increasing impression pressure. However, the pressure supportability of a denture base ...
Silver F M - - 1993
Laryngotracheoplasty often includes bilateral lateral division of the cricoid cartilage, despite the theoretical risk that cartilage growth centers might be located in the lateral cricoid. To investigate the effect of lateral cricoid cartilage division on subsequent cartilage growth, 60 five-week-old New Zealand white rabbits were divided into four groups of ...
Ansermino J M - - 1992
We have studied 42 female patients undergoing elective day-case surgery allocated randomly to two groups. After induction of anaesthesia an attempt was made to insert a laryngeal mask airway after application of cricoid pressure in one group or with no cricoid pressure in the other. The anaesthetist was unaware of ...
Strang T I - - 1992
The laryngeal mask airway was inserted in 10 cadavers. At postmortem the chest was opened and an infusion set primed with a dilute barium solution was inserted into the oesophagus and ligated in place. A cricoid force of 43 N was then applied and the infusion set was positioned so ...
Thompson R - - 1992
Social acceptance of patients with burns may be affected by the color of the pressure garment they wear. The purpose of this study was to ask students (n = 712), health care providers (n = 354), and the public (n = 250) their perceptions of beige versus color pressure garments. ...
Vanner R G - - 1992
The efficacy of cricoid pressure was studied in 10 adult cadavers. The oesophageal pressure that would result in regurgitation during measured values of cricoid pressure was determined. Oesophageal pressure, recorded by a 2 mm diameter oesophageal tube, was increased by oesophageal distension with saline, and incremental levels of cricoid force, ...
Vanner R G - - 1992
It is recommended that a cricoid pressure (force) of 40 N should be applied to prevent regurgitation. The tolerance of incremental levels of cricoid pressure was assessed in 22 conscious volunteers. Each level of cricoid pressure was applied for 20 s using a cricoid yoke. Only 14 volunteers could tolerate ...
Troendle G R - - 1992
A pressure pot has many applications in dentistry. This article describes a simple method of converting an everyday kitchen pressure cooker into one that can be used in dentistry. The technique is simple, and the components needed are readily available at a local hardware or department store. The advantage of ...
Sharma A - - 1992
The effects of domestic processing methods like soaking for 12 h, dehulling, ordinary cooking of whole as well as dehulled seeds at 15 lbs/inch2 pressure for 15 and 25 min, and germination for 24, 36 and 48 h were observed on trypsin inhibitor (TIA) and tannin content of two varieties ...
Vanner R G - - 1992
Upper oesophageal sphincter pressure has been measured in 24 patients with a sleeve device. The median sphincter pressure when awake was 38 mmHg, and when anaesthetized and paralysed was 6 mmHg. After tracheal intubation, cricoid pressure was applied at measured values between 5 and 50 N using a hand-held cricoid ...
Paprocki G J - - 1991
A routine culture of the internal surfaces of a laboratory pressure pot was performed. Candida albicans, Pseudomonas sp., and an unidentified gram-negative rod were isolated. Disposable plastic bags filled with water were used as a barrier to cross contamination during polymerization of repair acrylic resin in a pressure pot. No ...
Lalor J M - - 1991
An automatically pressurised infusor system, the Alton Dean infusor, has been compared with two types (cloth and plastic) of commonly used pneumatically pressurised bags. All the infusors had reasonably accurate pressure gauges but pressure could only be consistently maintained with the cloth infusors or with the Alton Dean infusors when ...
Heath M L - - 1991
Unexpected difficulty with tracheal intubation contributes to anaesthetic mortality. The laryngeal mask can almost always be placed satisfactorily and its position should facilitate blind intubation. A 6-mm cuffed tube will pass through both adult sizes of the mask and this study tested the feasibility of intubation through the mask. The ...
Silbert P L - - 1991
Pudendal neuropathies are well recognised as part of more generalised peripheral neuropathies; however, focal abnormalities of the pudendal nerve due to cycling-related injuries have been infrequently reported. We describe two patients who developed pudendal neuropathies secondary to pressure effects on the perineum from racing-bicycle saddles. Both were male competitive athletes, ...
Haq M A - - 1990
A preliminary report of the results of pressure therapy for hypertrophic scar, burn contracture and keloid is presented. Thirty four patients over a four year period were treated with four types of pressure therapy. Results showed over 50% improvement in 21 (61.8%) cases. This method obviated the need for repetitive ...
Kealey G P - - 1990
A prospective randomized study was undertaken to compare compliance efficacy and cost of the elastic nylon pressure garment (Jobst Institute, Inc., Toledo, Ohio) with the cotton elastic pressure garment (Tubigrip, SePro Healthcare Inc., Montgomeryville, Penn.). Of 110 patients enrolled, 54 received Jobst pressure garments and 56 received Tubigrip pressure garments. ...
Balraj V - - 1990
Pressure cookers are being widely used for sterilizing equipment in small clinics and hospitals and under 'field conditions' in developing countries, especially in India. In the literature there is no report on testing of pressure cookers (PC) to determine if they sterilize adequately. The use of PC for a 15-min ...
von Caemmerer S - - 1989
Short-term discrimination in assimilation of stable isotopes of carbon was measured for leaves of the C3 speciesPhaseolus vulgaris L. cv. Hawkesbury Wonder andFlaveria pringlei Gandoger, the C4 speciesAmaranthus edulis Speg., and the C3-C4 intermediate speciesPanicum milioides Nees ex. Trin,Flaveria floridana Johnson, andFlaveria anomala B.L. Robinson. Discriminations in the C3 and ...
Stephens C D - - 1989
The natural mechanisms of eruption, mesial migration, soft tissue pressure and occlusal forces can be used by the dentist to treat malocclusion in the growing child. The author describes how planned extractions of deciduous and permanent teeth can be employed to resolve crowding, promote spontaneous alignment, and avoid centreline displacement.
Warin R P - - 1989
Repeated pressure tests at regular intervals were carried out on 48 patients with delayed pressure urticaria (DPU). Patients showed a considerable variation in response with periods of positive testing ranging from a few days to months or years. All the DPU patients had had chronic urticaria and/or angio-oedema although sometimes ...
Harries C A - - 1989
Pressure garments are used extensively in the treatment of hypertrophic scarring following burn injuries. The Oxford Pressure Monitor was used to measure garment-scar interface pressure (mmHg) using a number of fabric types over various body parts. The results indicate a wide range of pressure values between different garments and body ...
Marazzi R - - 1988
Two families with hereditary neuropathy with liability to pressure palsies (HNPP) were evaluated clinically, electrophysiologically and pathologically (2 index cases). Familial patterns suggest autosomal dominant inheritance. The clinical presentation is characteristic, with recurrent painless transitory mononeuropathy, without evident triggering factors, or caused by trivial trauma or pressure. In affected members ...
Dover J S - - 1988
We studied 44 patients with delayed pressure urticaria. The mean age at onset of the disease was 33 years (range, 5 to 63 years) and the mean duration of disease was 9 years (range, 1 to 40 years). After pressure stimulus, the mean onset of whealing occurred in 3 1/2 ...
Petito S P - - 1988
The ability of cricoid pressure to prevent inflation of the stomach during mask ventilation of a patient was studied. Fifty patients were randomly allocated to either have or not have cricoid pressure applied during a three-minute period of standardised mask ventilation. Patients who had had cricoid pressure applied had less ...
Kochan T A - - 1988
An industrial relations system describes the basic values, laws, institutions, and organizational practices that govern employment relationships. To be effective, an industrial relations system must be well matched to its economic and social environment and able to meet the strategic needs of employers, the workforce, and the larger society. The ...
Babyak J W - - 1987
The acute and long-term effects of the anterior cricoid split on the subglottis of puppies intubated from 7 to 14 days are documented. The anterior cricoid split acutely increased the intralumenal cricoid surface area in puppies with intubation-induced airway injury. An intense inflammatory response with mucosal ulceration and granulation tissue ...
Lawes E G - - 1987
An investigation was carried out into the relationship between the inflation pressures of normally compliant lungs and the airways pressure necessary to produce the insufflation of gas to the stomach. This relationship was examined during manual ventilation with a mask, using a rapid sequence induction technique. In the absence of ...
Shelley W B - - 1987
Study of a patient with the bullous delayed pressure urticaria syndrome showed remarkable congruence of the extra-cutaneous findings and the known effects of interleukin 1: malaise, fever, myalgia, arthralgia, leukocytosis, increased sedimentation rate, and circulating acute phase reactants. As a result of this "clinical assay" for interleukin 1, we conclude ...
Lawes E G - - 1986
The performance of cricoid pressure was studied in three groups of medical personnel likely to be involved in its application using the cricoid yoke and a test rig. The instrument enabled individuals who had no previous experience in the application of cricoid pressure to achieve results as good as those ...
Lawes E G - - 1986
An instrument is described which, when used during the accelerated induction technique, ensures that consistent and adequate cricoid pressure can be applied. Mothers undergoing general anaesthesia for elective Caesarean section were studied in order to illustrate the clinical application of the instrument. The consequences to intubating conditions of applying adequate ...
Canter R J - - 1985
Cricoid pressure may be performed when a sharp object such as an animal bone is lodged in the post-cricoid oesophagus. This study was undertaken to determine what damage, if any, may be caused to the oesophagus. A sharp foreign body was inserted into the post-cricoid region of 15 cadavers. In ...
Magistris M R - - 1985
We detected 29 conduction blocks in 12 patients with hereditary neuropathy and liability to pressure palsies. The blocks occurred at entrapment sites, most often the ulnar nerve at the elbow. Some had lasted for several years. This kind of block seems to be characteristic of the neuropathy, and may be ...
Firtell D N - - 1985
P.I.P. and Coltene pressure spot indicator were tested on the same 30 sets of complete maxillary and mandibular dentures and on two maxillary dentures against natural dentition. They were tested at delivery for pressure spots, but adjustments were not made. They were tested again after 24 hours to visualize and ...
Black A K - - 1985
Urticarial responses in skin may be elicited in different ways, viz, stroking (dermographism), after sustained pressure (delayed pressure urticaria), and after vibration (vibratory angio-oedema). Pressure may localise lesions of chronic idiopathic urticaria. Trauma may exacerbate hereditary angio-oedema. The extent of the morbidity caused by trauma-induced urticaria among workers is unknown.
Sharkey T D TD Biological Sciences Center, Desert Research Institute, P.O. Box 60220, 89506, Reno, NV, - - 1985
Steady-state room temperature variable fluorescence from leaves was measured as a function of CO2 pressure in Xanthium strumarium L. and Phaseolus vulgaris L. Measurements were made in a range of light intensities, at normal and low O2 parital pressure and over a range of temperatures.At low CO2 pressure fluorescence increased ...
Wong R C - - 1984
Urticaria is one of the more common skin conditions seen by physicians. Physical agents are an important cause of urticaria, with pressure or shearing forces being the most common. Dermographism is due to a combination of pressure and shearing forces and is present in a large number of healthy individuals. ...
Cheng J C - - 1984
Pressure therapy is generally accepted as the best noninvasive means of preventing and controlling hypertrophic scarring after burn injury. Most studies in the past have failed to correlate clinical response with magnitude of the garment-scar interface pressure. This study looked critically at our usual techniques of pressure therapy using pressure ...
Bruster J M - - 1983
Using a properly timed sequence of early gradient pressure greatly facilitates the burn patient's rehabilitation in our program. Hypersensitivity is avoided or alleviated, skin breakdown is minimized, and early hypertrophic scar development and contracture is controlled. This allows commercial garments to be fitted at an early stage with the assurance ...
Wraight W J - - 1983
A study of cricoid pressure was undertaken to relate the applied cricoid force with the resulting intraluminal cricopharyngeal (or oesophageal) pressure. The results indicate that whilst there was a wide range in normal adults a cricoid force of 44 N was judged to be effective in protecting the majority of ...
Ng C L - - 1983
Hypertrophic scarring and keloids are frequent sequelae following trauma. Continuous and controlled pressure through the use of pressure garments can yield a high degree of non-surgical control of both hypertrophic scar formation and scar contracture resulting in soft, pliable scars with relief from itch and pain. This paper is a ...
Sussman G L - - 1982
Delayed pressure urticaria (DPU) is a poorly understood syndrome. We describe 17 patients with DPU. Chronic urticaria was present in 94%. All had negative challenges for immediate demographism and cold urticaria. DPU was induced with a pressure challenge on the shoulder of 15 pounds for 15 min. Average onset of ...
Rihani A - - 1981
A study was made of the pressures exerted on the upper denture-bearing area in three patients each with a different type of palatal vault. A method of measuring the relative pressures in different regions of the upper denture bearing area was devised. These pressures were registered with the use of ...
Margolis C F - - 1981
Urticaria is caused by physical factors in almost 12 percent of cases. These factors include pressure. Dermographism is the appearance of whealing and erythema within minutes where skin has been exposed to pressure or mechanical irritation. Symptomatic dermographism is present when "normal" pressures, such as those encountered in the activities ...
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