Upper Respiratory Tract Infections Ebook
As such they increase cardiac output, dilate bronchioles, and usually produce constriction of blood vessels. In medicine, they are commonly prescribed in cardiac emergencies including shock and anaphylaxis, in some cases for weight loss, and in cold remedies, where they shrink swollen membranes in the upper respiratory tract.
Naphazoline is used in severe rhinitis associated with colds, allergic reactions, and severe and chronic inflammatory conditions, in particular for inflammation of the antrum of Highmore as well as for stopping nosebleeds. Synonyms of naphazoline are nafazair, sanorin, rinazin, and privine. Oxymetazoline is used for the same indications as naphazoline, primarily for rhinitis. Synonyms of this drug are afrin and duramist.
As a group, these diseases are marked by striking somatic dysplasia, slowly deteriorating neurological and systemic symptoms, storage of mucopolysaccharides in the lysosomes, and excretion of mucopolysaccharides in the urine (see Iabje.30-4 ). Although each type has a specific enzyme deficit, the similar spectrum of clinical manifestations in all MPS disorders makes biochemical differentiation essential. For many reasons, Hurler's disease has become the prototypical MPS. Patients who have this syndrome in early infancy may appear reasonably normal, but by 6 months of age it is obvious that a severe disorder is present. Ihe abnormal facial appearance is one of the first signs noted, and hepatosplenomegaly and umbilical and inguinal hernias are soon detected. Affected infants may have chronic rhinorrhea associated with frequent colds, recurrent airway infections, and otitis media. When children with Hurler's disease attempt to sit, a characteristic kyphoscoliosis is often observed,...
Temporary or prolonged reduction of olfactory acuity (hyposmia anosmia) is often caused by diseases affecting the nasal mucosa or epithelium, including allergic, infective, or vasomotor rhinitis. Congestion and swelling of mucous membranes may also result from metabolic and hormonal disorders (Adams & Victor, 1981). As well as acting peripherally on nasal mucosa and epithelium, solvents can interfere with odor identification and odor detection through their action on the central nervous system (Schwartz, Ford, Bolla, Agnew, & Bleeker, 1991). Permanent loss of smell ability may result from exposure to toxins, from influenza
18.104.22.168 Hetrodimeric Inhibitors of Picorna Virus. A causative agent of the common cold, picorna virus is a nonenveloped RNA virus with an icosahedron shape 915 . Virus-host cell adhesion is mediated by a viral capsid protein, VP1, located in a hydrophobic canyon'' on the outer surface of the virus
And that differs in character from classic trigeminal neuralgia. Many of these atypical facial pain syndromes including Charlin's nasociliary neuralgia, Sluder's pterygopalatine ganglion syndrome, and Vail's vidian neuralgia, all involve portions of the trigeminal nerve. They are also characterized by numerous autonomic symptoms such as lacrimation, conjunctival injection, altered sweating, salivation, facial flushing, and nasal congestion, which are believed to result from involvement of the autonomic ganglia (ciliary, pterygopalatine) in the face. These atypical facial neuralgias are additionally characterized by nondermatomal localization of pain bilateral symptoms continual instead of paroxysmal pain lack of clear trigger zones and deep, poorly localized pain. y Appropriate therapy for these debilitating and often refractory disorders is often unsatisfactory and has consisted of surgical ablation of peripheral pain fibers, peripheral or sympathetic nerve blockade, transcutaneous...
The majority of patients with AFRS present with gradual progressive nasal airway obstruction, semisolid nasal crusts, and a history of chronic allergic rhinitis 25 . Occasionally, the initial symptom patients present to the physician with is gross facial dys-morphia 21, 22 or acute vision loss 27 . The facial dysmorphic features can include proptosis 4 and telecanthus 27 , where orbital involvement can lead to diplopia, visual field cuts, and acute vision loss (Fig. 11.2). These features are all caused by the expansile nature of AFRS. As the sequestered allergic mucin accumulates, it exerts an outward pressure on the surrounding structures. Bony remodeling and decalcification, similar to a mucocele, may occur 14, 16, 34 . This can result in a clinical picture that mimics invasion, much like a malignant process.
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It is, however, very probable that the Europeans would have recognized various Salvia species. The Europeans utilized the local Salvia species for much the same ailments as S. officinalis is used for in Europe, mostly colds, coughs and chest trouble. S. africana-caerulea Used by European settlers as a remedy for coughs, colds and chest troubles, a tincture also for whooping cough and uterine troubles. An old household remedy for colic, diarrhoea, heartburn and indigestion prepared as a tea to which Epsom salt and lemon juice was added. Used by the Nama people for coughs, colds and female ailments. The Rastafarians use it for chest problems, colds, kidney infections, stomach trouble Used by European settlers for colds. The Nama use a decoction for coughs, colds and female ailments. Used by European settlers for coughs, including whooping cough, colds and bronchitis, as well as for diarrhoea. The coloured population of the Cape use an infusion of the dry leaf for convulsions. The Nama...
May also be ataxic as a result of labyrinthine dysfunction or vestibular neuronitis. In adults, an upper respiratory tract infection frequently precedes the development of meningeal symptoms, and its presence should be sought in the history. '7 , y Adults typically complain of headache, photophobia, and stiff neck, and they may have a rapid progression from lethargy to stupor and coma. The clinical presentation of meningitis in an older adult consists of fever and confusion, stupor, or coma.
The most common symptoms are a sensation of nasal blockage, nasal discharge or occasionally nose bleeds, dry mouth and throat. A blocked nose is often noticed within one or two nights of starting CPAP. Nasal symptoms may respond to inhaled nasal steroids, or if the nasal discharge is watery nasal ipratropium is of value. Correction of the unidirectional airflow by application of a chin strap or a full face mask often improves nasal symptoms, but if they persist, heated water humidification of the inspired air or the use of a face mask which includes the mouth as well as the nose are usually effective.
Essential components of the directed physical examination include a neurological evaluation emphasizing the cranial nerves and orbital contents (to direct attention to lesions of the skull base) as well as a general evaluation of the ears, upper respiratory tract, and head and neck. Although much can be gained by evaluating the nose using anterior rhinoscopy, nasal endoscopy allows a more thorough assessment. With this procedure, the rhinologist can often directly visualize the olfactory neuroepithelium and establish whether airflow access to the epithelium is blocked. In the nasal examination, the nasal mucosa is evaluated for color, surface texture, swelling, inflammation, exudate, ulceration, epithelial metaplasia, erosion, and atrophy. Discovery of purulent rhinorrhea, especially its site of origin, is considered significant if it is present throughout the nasal cavity, rhinitis is suggested. If rhinorrhea is present in the middle meatus, maxillary or anterior ethmoid sinusitis is...
Numerous studies have investigated both the effects that exercise has on vitamin C needs and the effect that supplemental vitamin C has on subsequent athletic performance. Several animal and human studies do seem to indicate that strenuous or prolonged exercise or physical training, in all likelihood, increases the need for vitamin C. It is less likely that light or moderate levels of activity and training increase vitamin C requirements. Animal studies consistently show reduced tissue levels of ascorbic acid with exercise. Several human studies have shown reduced plasma and leukocyte concentrations and reduced urinary excretion of the vitamin with exercise. In addition, supplemental dietary vitamin C has been shown to increase adaptation to exercise in the heat and reduce upper respiratory tract infections in individuals undergoing strenuous exercise. Supplemental vitamin C also has been shown, in some studies, to reduce plasma cortisol concentrations and muscle soreness markers...
In general the findings across many studies with the first two social support measures have been positive. In a 1991 review, Sheldon Cohen (pp. 1-2) concluded, The epi-demiological data on the role of social integration in morbidity and mortality have clearly established that the social environment plays an important role in health and well being . . . and when a perceived availability of a social support measure is used, these effects reliably occur in the prediction of psychological and physical symptoms. It appears that the body's immune system is affected by social support, and people who get colds readily are likely to have poor social supports. An overview of abstracts of articles since Cohen's conclusions show a majority of studies with posi
Influenza, also known as flu, grip, and grippe, is a disease of humans, pigs, horses, and other mammals, as well as of a number of species of birds. Among humans it is a contagious respiratory disease characterized by sudden onset and symptoms of sore throat, cough, often a runny nose, fever, chills, headache, weakness, generalized muscle and joint pain, and prostration. It is difficult to differentiate between single cases of influenza and feverish colds, but when a sudden outbreak of symptoms occurs among a number of people, the correct diagnosis is almost always influenza.
The majority of cases of rhinosinusitis are secondary to obstruction of the ostiomeatal unit, which is an area located in the middle meatus. This obstruction will lead to poor ventilation and stasis of secretions, resulting in inflammation or infection. Obstruction can be due to several causes, the most common being anatomical anomalies, viral infections and allergic rhinitis. Certain conditions that can affect mucociliary clearance of the sinuses can also cause rhinosinusitis. Such conditions include cystic fibrosis, ciliary dyskinesia and immotile cilia. Several other conditions can affect the development of rhinosinusitis. Other than allergic rhinitis, immune deficiencies and reflux disease are conditions that may impact the response to treatment of rhinosinusitis 4, 19, 20 .
Symptoms of rhinosinusitis in children may vary by age. Younger children present with colored nasal discharge and cough, while older ones will complain of nasal stuffiness obstruction and headache. The most common symptoms of chronic rhinosinusitis include nasal discharge (75 ), cough (73 ), nasal congestion (72 ) and headache (72 ) (Fig. 21.1) 10, 13, 21 .
When we get sick it often is due to invading microbes that destroy or damage cells and organs in our body. Cholera, smallpox, measles, diphtheria, AIDS, and the common cold are all examples of what we call an infectious disease. If we catch any of these diseases, our doctor may prescribe a drug that will, in some cases, remove the microbe from our bodies, thus curing the disease. Unfortunately, most of the diseases that we fall prey to are not of the infectious kind. In such cases, there are no microbes to fight, no drugs to apply. Instead, we are faced with a far more difficult problem, for this type of disease is an ailment that damages a gene. Gene therapy attempts to cure these diseases by replacing, or supplementing, the damaged gene. Vectors used in gene therapy. Adenoviruses have a DNA genome, contained in a crystalline protein capsid, and normally infect cells of the upper respiratory tract, causing colds and flulike symptoms. The protein filaments are used to infect cells....
These systems are usually well tolerated, but several difficulties are recognized. Ulceration of the skin of the bridge of the nose is a common problem. The mask may become displaced during sleep, air-leaks around the mask or through the mouth may develop and upper airway symptoms such as a dry or blocked nose may develop. Functional upper airway obstruction may be seen and, if air enters the oesophagus rather than the trachea, abdominal distension with frequent belching, nausea and the passing of flatus may arise.
Rhinoscleroma, also known as chloroma, is a chronic disease of very slow progression that is potentially fatal. It is caused by Klebsiella rhinoscleroma (Frish bacillus). The first symptoms are generally nasopharyngeal. The lesions are slow growers, and often the patient does not seek medical attention for years. The initial stage is that of rhinitis. This is an exudating stage, with symptoms similar to a common cold including headache and difficulty breathing. There is a very purulent, fetid secretion with crusts and occasional epistaxis. The second stage has a proliferating pattern with improvement of the cold-like symptoms however, obstruction and infiltration of nasal tissues by friable granulomatous tissue may extend into the pharynx and the larynx causing a change in the tone of voice with hoarseness. Later during a nodular period the nose takes on the size and shape similar to that of a tapir. Respiration becomes difficult and it may be necessary to do a...
Between the 1940s and 1980s, some 20 000 servicemen volunteered to be exposed to low levels of mustard gas and nerve agents, including sarin. The communication reports the Ministry of Defence (MoD) as not having seen any evidence connecting ill health with participation in the trials. In July 2001 (Anon, 2001), the government launched an independent medical investigation. By this time there was compelling evidence that some volunteers had received dangerous doses and, moreover, some claimed to have been duped into believing that they would be researching the common cold.
The presence of a saddle nose, rhinitis, or perforated nasal septum may suggest a diagnosis of Wegener's granulomatosis.17 Features of Behcet's disease include oral or genital ulceration, uveitis, cutaneous nodules, and pulmonary artery aneurysm which is associated with a 30 2 year mortality rate.18 Although haematuria may be present in association with Goodpasture's disease, 5-10 of patients present without clinical evidence of renal disease.8
ATOPIC DISEASE AND ATOPIC ECZEMA Atopic conditions include asthma, allergic rhinitis, urticaria, and atopic dermatitis. These conditions are generally associated with elevated serum IgE levels and serum IgE responses to allergens. The role of IgE and exogenous antigens in atopic dermatitis is extremely
Saprophytic fungus that grows in the soil, prevalently in soil of caves inhabited by bats. The disease is transmitted by the inadvertent inhalation of the spores. Epidemics have occurred through exploring infested caves or cleaning sites where chicken excrement (guano) may be present. A benign clinical form that may leave a calcified nodule in the lung similar to that of tuberculosis mimics the common cold. Primary infection, the most severe form of the disease, can disseminate and involve the reticuloendothelial system. Mucocutaneous nodules and granulomas may be seen. In AIDS the disease is seen in its most severe form. Primary cutaneous COCCIDIOIDOMYCOSIS OR SAN JOAQUIN VALLEY FEVER This disease is caused by Coccidioides immitis, a soil inhabitant. Infection in both humans and animals is acquired by the inhalation of fungus-laden dust particles or, rarely, through a primary infection of the skin. The severity of coccidioidomycosis can range from very mild, simulating a common cold,...
Onstrated that the mucocele lining is composed of normal respiratory mucosa, namely, ciliated pseudostrati-fied columnar epithelium. Thus, the development of a mucocele can be extrapolated to an event resulting in retained mucus with loss of a normal outflow tract. One proposed mechanism implicates the cystic degeneration of a seromucinous gland with formation of a retention cyst 2 . Sinus outflow obstruction resulting from benign or malignant intranasal neoplasm may also contribute to mucocele formation. Iatrogenic mucocele formation was demonstrated in the setting of both external and endoscopic sinus surgery secondary to trapped mucosa or scarring of a paranasal sinus ostium. One series reported a 9.3 incidence of frontal sinus mucocele following osteoplastic flap 8 . Other etiologic factors include a history of chronic rhinosinusitis, allergic rhinitis, and previous maxillofacial trauma.
This situation arises with people suffering from the common cold or from an allergy and who complain that they cannot taste. In fact, their taste sensations may not be impaired the olfactory mechanisms are affected because volatile components from foods are prevented from entering the olfactory system by mucus.
In patients complaining of anosmia or hyposmia, it is useful to ask whether smell function is diminished or completely lost, localized to the right or left nostril, or both, and whether the dysfunction is for all odorants or only a few. Patients with loss due to nasal sinus disease are more likely to experience a gradual loss of function than those who have loss due to a prior upper respiratory infection or to head trauma. Some patients report temporary recovery of function in circumstances in which nasal patency is increased, such as on warm days or during exercise, showering, or treatment with corticosteroids this implies a problem with intranasal airway blockage (as in allergic rhinitis) rather than a sensorineural problem.