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chronic obstructive pulmonary disease
chronic obstructive pulmonary disease samer kareem 2,230 Views • 3 years ago

Pathologic changes in chronic obstructive pulmonary disease (COPD) occur in the large (central) airways, the small (peripheral) bronchioles, and the lung parenchyma. Most cases of COPD are the result of exposure to noxious stimuli, most often cigarette smoke. The normal inflammatory response is amplified in persons prone to COPD development. The pathogenic mechanisms are not clear but are most likely diverse. Increased numbers of activated polymorphonuclear leukocytes and macrophages release elastases in a manner that cannot be counteracted effectively by antiproteases, resulting in lung destruction. The primary offender has been found to be human leukocyte elastase, with synergistic roles suggested for proteinase-3 and macrophage-derived matrix metalloproteinases (MMPs), cysteine proteinases, and a plasminogen activator. Additionally, increased oxidative stress caused by free radicals in cigarette smoke, the oxidants released by phagocytes, and polymorphonuclear leukocytes all may lead to apoptosis or necrosis of exposed cells. Accelerated aging and autoimmune mechanisms have also been proposed as having roles in the pathogenesis of COPD.[5, 6] Cigarette smoke causes neutrophil influx, which is required for the secretion of MMPs; this suggests, therefore, that neutrophils and macrophages are required for the development of emphysema. Studies have also shown that in addition to macrophages, T lymphocytes, particularly CD8+, play an important role in the pathogenesis of smoking-induced airflow limitation. To support the inflammation hypothesis further, a stepwise increase in alveolar inflammation has been found in surgical specimens from patients without COPD versus patients with mild or severe emphysema. Indeed, mounting evidence supports the concept that dysregulation of apoptosis and defective clearance of apoptotic cells by macrophages play a prominent role in airway inflammation, particularly in emphysema.[7] Azithromycin (Zithromax) has been shown to improve this macrophage clearance function, providing a possible future treatment modality.[8] In patients with stable COPD without known cardiovascular disease, there is a high prevalence of microalbuminuria, which is associated with hypoxemia independent of other risk factors.[9] Chronic bronchitis Mucous gland hyperplasia (as seen in the images below) is the histologic hallmark of chronic bronchitis. Airway structural changes include atrophy, focal squamous metaplasia, ciliary abnormalities, variable amounts of airway smooth muscle hyperplasia, inflammation, and bronchial wall thickening.

Chronic Inflammatory Demyelinating Polyneuropathy
Chronic Inflammatory Demyelinating Polyneuropathy samer kareem 2,701 Views • 3 years ago

The term chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) has been used to identify patients with a chronically progressive or relapsing symmetric sensorimotor disorder with cytoalbuminologic dissociation and interstitial and perivascular endoneurial infiltration by lymphocytes and macrophages. It can be considered the chronic equivalent of acute inflammatory demyelinating polyradiculoneuropathy, the most common form of Guillain-Barré syndrome. Signs and symptoms CIDP typically starts insidiously and evolves slowly, in either a slowly progressive or a relapsing manner, with partial or complete recovery between recurrences; periods of worsening and improvement usually last weeks or months. Most experts consider the necessary duration of symptoms to be greater than 8 weeks for the diagnosis of CIDP to be made. Symptoms reported include the following: Preceding infection (infrequent) Initial limb weakness, both proximal and distal Sensory symptoms (eg, tingling and numbness of hands and feet) Motor symptoms (usually predominant) In about 16% of patients, a relatively acute or subacute onset of symptoms In children, usually a more precipitous onset of symptoms Symptoms of autonomic system dysfunction (eg, orthostatic dizziness) Pertinent physical findings are limited to the nervous system, except when the condition is associated with other diseases. Such findings may include the following. Signs of cranial nerve (CN) involvement (eg, facial muscle paralysis or diplopia) Gait abnormalities Motor deficits (eg, symmetric weakness of both proximal and distal muscles in upper and lower extremities) Diminished or absent deep tendon reflexes Sensory deficits (typically in stocking-glove distribution) Impaired coordination See Clinical Presentation for more detail. Diagnosis Laboratory studies that may be helpful include the following: Cerebrospinal fluid analysis: Elevated protein levels are common (80% of patients); 10% of patients also have mild lymphocytic pleocytosis and increased gamma globulin Complete blood count (CBC), erythrocyte sedimentation rate (ESR), antinuclear antibody (ANA) level, biochemistry profile, and serum and urine immunoelectrophoresis (to exclude associated systemic disorders) In certain instances, genetic testing Other tests and procedures that may be warranted are as follows: MRI of the spine with gadolinium enhancement Electromyography (EMG) is a critical test to determine whether the disorder is truly a peripheral neuropathy and whether the neuropathy is demyelinating Peripheral (sural) nerve biopsy (see the image below): This is considered when the diagnosis is not completely clear, when other causes cannot be excluded, or when profound axonal involvement is observed on EMG; biopsy was once commonly recommended for most patients before immunosuppressive therapy, but current guidelines no longer recommend it

Primary Amenorrhea
Primary Amenorrhea samer kareem 2,276 Views • 3 years ago

Amenorrhea is the absence of menstrual bleeding.[1] Amenorrhea is a normal feature in prepubertal, pregnant, and postmenopausal females. In females of reproductive age, diagnosing amenorrhea is a matter of first determining whether pregnancy is the etiology. In the absence of pregnancy, the challenge is to determine the exact cause of absent menses.[2] Primary amenorrhea is the failure of menses to occur by age 16 years, in the presence of normal growth and secondary sexual characteristics. If by age 13 menses has not occurred and the onset of puberty, such as breast development, is absent, a workup for primary amenorrhea should start. Secondary amenorrhea is defined as the cessation of menses sometime after menarche has occurred. Oligomenorrhea is defined as menses occurring at intervals longer than 35 days apart. No consensus has been reached regarding the point at which oligomenorrhea becomes amenorrhea. Some authors suggest the absence of menses for 6 months constitutes amenorrhea, but the basis for this recommendation is unclear. For a post-menarchal girl or a reproductive-aged woman to experience a menstrual cycle interval of more than 90 days is statistically unusual. Practically speaking, this should be an indication for an evaluation to seek the cause.

Breast Cancer for Males
Breast Cancer for Males samer kareem 2,496 Views • 3 years ago

Men need to know that breast cancer is not limited to women. Possible symptoms of breast cancer to watch for include: A lump or swelling, which is usually (but not always) painless Skin dimpling or puckering Nipple retraction (turning inward) Redness or scaling of the nipple or breast skin Discharge from the nipple Sometimes a breast cancer can spread to lymph nodes under the arm or around the collar bone and cause a lump or swelling there, even before the original tumor in the breast tissue is large enough to be felt. These changes aren't always caused by cancer. For example, most breast lumps in men are caused by gynecomastia (a harmless enlargement of breast tissue). Still, if you notice any breast changes, you should see a health care professional as soon as possible.

Knee Injection
Knee Injection samer kareem 3,117 Views • 3 years ago

When oral medications do not relieve knee pain, but you're not to the point of pursuing knee surgery, one of the following injections or procedures may help. Hyaluronic acid supplements – Although not technically medications, these substances are injected into knee joints to supplement naturally occurring hyaluronic acid. In healthy joints hyaluronic acid acts as a shock absorber and lubricant, allowing joints to move smoothly over each other. However, the acid appears to break down in people with osteoarthritis. Injecting it into a joint may lessen pain and inflammation. The injections are given weekly for three or five weeks, depending on the product (examples are Synvisc and Hyalgan). A small amount of joint fluid is removed first to make room for the hyaluronic acid. Corticosteroid Injections – Doctors sometimes inject corticosteroids directly into the knee joint for quick relief of pain and inflammation. Their benefits may last anywhere from a few days to more than six months. While the injections bring targeted relief to the joint and lack many of the side effects of oral corticosteroid medications, they are not without risks. Repeated knee injections may actually contribute to cartilage breakdown. For that reason your doctor will likely put a limit on the number of injections you can receive. Read a report from the British Medical Journal on corticosteroid injections for knee osteoarthritis. Arthrocentesis – Also called joint fluid aspiration, arthrocentesis is removal of joint fluid through a hollow needle inserted into the joint space of the knee. Although the purpose of removing joint fluid from the knee is usually so that it can be tested in the lab, removing excess fluid can also quickly ease pain and swelling. Often after withdrawing fluid, doctors use the same puncture site where the fluid was removed to inject a corticosteroid preparation and/or anesthetic into the knee joint to further relieve pain and inflammation.

Tummy Tuck Surgery
Tummy Tuck Surgery Scott 3,612 Views • 3 years ago

Tummy tuck surgery, also known as abdominoplasty, removes excess fat and skin and, in most cases, restores weakened or separated muscles creating an abdominal profile that is smoother and firmer. A flat and well-toned abdomen is something many of us strive for through exercise and weight control. Sometimes these methods cannot achieve our goals. Even individuals of otherwise normal body weight and proportion can develop an abdomen that protrudes or is loose and sagging. The most common causes of this include: Aging Heredity Pregnancy Prior surgery Significant fluctuations in weight What tummy tuck surgery can't do A tummy tuck is not a substitute for weight loss or an appropriate exercise program. Although the results of a tummy tuck are technically permanent, the positive outcome can be greatly diminished by significant fluctuations in your weight. For this reason, individuals who are planning substantial weight loss or women who may be considering future pregnancies would be advised to postpone a tummy tuck. A tummy tuck cannot correct stretch marks, although these may be removed or somewhat improved if they are located on the areas of excess skin that will be excised.

Perdre Des Cuisses, Astuces Pour Maigrir, Objectif Ventre Plat, Exercice Pour Perdre Du Poids
Perdre Des Cuisses, Astuces Pour Maigrir, Objectif Ventre Plat, Exercice Pour Perdre Du Poids Marky123 3,153 Views • 3 years ago

http://destructeur-de-poids.info-pro.co Perdre Des Cuisses, Astuces Pour Maigrir, Objectif Ventre Plat, Exercice Pour Perdre Du Poids. Boire de l’eau est relié au gain de poids Ceci peut sembler vraiment étrange... Mais boire de l'eau serait la raison pourquoi la plupart d'entre nous avons des problèmes à perdre du poids ? Une découverte récente démontre que c'est vrai et que pour perdre du poids... il faut connaître exactement la quantité d'eau à boire... basé sur votre propre corps. En utilisant ce truc simple, les gens ont perdu 15, 20, 25 kilos même, en moins de 2 mois. Découvrez combien d'eau vous avez besoin et commencez à perdre du poids. http://destructeur-de-poids.info-pro.co http://astuce-ventre-plat.blogspot.com/

Get Pregnant With Polycystic Ovaries
Get Pregnant With Polycystic Ovaries samer kareem 2,298 Views • 3 years ago

This video: Polycystic ovary syndrome (PCOS) is a common endocrine disorder among women of reproductive age. Women with PCOS may have enlarged ovaries that contain small collections of fluid — called follicles — located in each ovary as seen during an ultrasound exam. Infrequent or prolonged menstrual periods, excess hair growth, acne, and obesity can all occur in women with polycystic ovary syndrome. In adolescents, infrequent or absent menstruation may raise suspicion for the condition. The exact cause of polycystic ovary syndrome is unknown. Early diagnosis and treatment along with weight loss may reduce the risk of long-term complications, such as type 2 diabetes and heart disease.

Tampon for The First Time
Tampon for The First Time samer kareem 14,891 Views • 3 years ago

Tampon for The First Time

Amyloidosis
Amyloidosis samer kareem 21,333 Views • 3 years ago

Amyloidosis (am-uh-loi-DO-sis) is a rare disease that occurs when a substance called amyloid builds up in your organs. Amyloid is an abnormal protein that is usually produced in your bone marrow and can be deposited in any tissue or organ. Amyloidosis can affect different organs in different people, and there are different types of amyloid. Amyloidosis frequently affects the heart, kidneys, liver, spleen, nervous system and digestive tract. Severe amyloidosis can lead to life-threatening organ failure.

Inguinal Hernia Surgery
Inguinal Hernia Surgery samer kareem 21,962 Views • 3 years ago

During surgery to repair the hernia, the bulging tissue is pushed back in. Your abdominal wall is strengthened and supported with sutures (stitches), and sometimes mesh. This repair can be done with open or laparoscopic surgery. You and your surgeon can discuss which type of surgery is right for you.

Cosmetic Eye and Eyelid Surgery
Cosmetic Eye and Eyelid Surgery samer kareem 15,991 Views • 3 years ago

Cosmetic Eye and Eyelid Surgery

Miniaturized Medical Devices
Miniaturized Medical Devices samer kareem 3,144 Views • 3 years ago

The term "miniaturization" is widely accepted in our vernacular as a positive step in product development. Reducing components to create less space, product footprint and more affordable medical devices are ongoing objectives for manufacturers today. Jabil strives to integrate new innovative technologies into product design and manufacturing as continual miniaturization of medical devices is a focus of the healthcare thought process. Miniaturization is a constantly moving target. Once a novel, new technology sets a higher bar for miniaturization standards, the next ambitious goal is to achieve an even thinner and smaller device. Industry trends, including minimally invasive surgical devices and home health care delivery, demand more sophisticated medical portable devices and easy-to-use electronics which may not be a core competency of medical device manufacturers.

Baby born without brain
Baby born without brain samer kareem 11,561 Views • 3 years ago

Baby born without brain

Neuropathic Gait Demonstration
Neuropathic Gait Demonstration samer kareem 4,761 Views • 3 years ago

This type of gait is most often seen in peripheral nerve disease where the distal lower extremity is most affected. Because the foot dorsiflexors are weak, the patient has a high stepping gait in an attempt to avoid dragging the toe on the ground.

Timed Up & Go Test
Timed Up & Go Test samer kareem 5,584 Views • 3 years ago

The "Get up and go" test is most commonly used to assess postural stability. In this test, the physician instructs the patient to stand up from a chair without assistance, walk a short distance, turn around, return, and sit down again. If the patient is unsteady or has difficulties during the test, further evaluation is necessary.

Mole Removal Surgery and Stitches
Mole Removal Surgery and Stitches samer kareem 2,066 Views • 3 years ago

Boy Returns from the Beach with a Snail Inside His Knee
Boy Returns from the Beach with a Snail Inside His Knee hooda 41,845 Views • 3 years ago

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Como Tirar Celulite, Como Acabar Com A Celulite Das Pernas, Como Tirar Celulite Das Coxas
Como Tirar Celulite, Como Acabar Com A Celulite Das Pernas, Como Tirar Celulite Das Coxas marin vinasco 1,423 Views • 3 years ago

http://eliminar-celulite.plus101.com -- Como Tirar Celulite, Como Acabar Com A Celulite Das Pernas, Como Tirar Celulite Das Coxas. Esses 5 fatores contêm o segredo para conhecer algumas das causas dos furinhos, caroços e cavidades nas regiões problemáticas e pontos críticos da mulher comum. 1 – Muito Stress pode Causar Celulite ou Piorá-la Grande parte das mulheres nem ao menos sabe pelo nível de stress que elas têm passado em tempo integral. O ritmo da vida e sociedade moderna e a sobrecarga de fontes naturais estimulantes externas causa hiperatividade subconsciente. Isso se manifesta em vários níveis de preocupação, desassossego e uso desnecessário de energia mental e emocional. Mas pegue isso e adicione às ocorrências corriqueiras e intensas de stress que ocorrem em todas as nossas vidas em diversos momentos, em diferentes graus. Por exemplo: a doença de um ente querido, a morte de um amigo, divórcio, dificuldades no emprego, brigas familiares... Todos esses fatores de stress têm um impacto direto nos hormônios. Cortisol, epinefrina, e oxitocina, só para dar nome a alguns, são afetados pelo stress. Os níveis e frequência desses e de outros hormônios no corpo podem influenciar muitas características físicas. Uma delas sendo a sua integridade celular. Se as células de seu corpo estão sendo bombardeadas com níveis de hormônios que estão fora de sintonia, então os diversos resultados aparecerão. Músculos, tecido conectivo e células da pele ficarão moles, fracos e flácidos. Isto pode inclusive acontecer com mulheres que estão dando o seu melhor com exercícios e nutrição apropriados. Confira o vídeo abaixo e saiba como: http://eliminar-celulite.plus101.com

Massive Size Fibrodenoma Removal Under Local Anesthesia
Massive Size Fibrodenoma Removal Under Local Anesthesia hooda 81,044 Views • 3 years ago

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