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Benign Prostatic Hyperplasia
Benign Prostatic Hyperplasia samer kareem 3,259 Views • 3 years ago

Benign prostatic hyperplasia (BPH), also known as benign prostatic hypertrophy, is a histologic diagnosis characterized by proliferation of the cellular elements of the prostate. Cellular accumulation and gland enlargement may result from epithelial and stromal proliferation, impaired preprogrammed cell death (apoptosis), or both. BPH involves the stromal and epithelial elements of the prostate arising in the periurethral and transition zones of the gland (see Pathophysiology). The hyperplasia presumably results in enlargement of the prostate that may restrict the flow of urine from the bladder. BPH is considered a normal part of the aging process in men and is hormonally dependent on testosterone and dihydrotestosterone (DHT) production. An estimated 50% of men demonstrate histopathologic BPH by age 60 years. This number increases to 90% by age 85 years. The voiding dysfunction that results from prostate gland enlargement and bladder outlet obstruction (BOO) is termed lower urinary tract symptoms (LUTS). It has also been commonly referred to as prostatism, although this term has decreased in popularity. These entities overlap; not all men with BPH have LUTS, and likewise, not all men with LUTS have BPH. Approximately half of men diagnosed with histopathologic BPH demonstrate moderate-to-severe LUTS. Clinical manifestations of LUTS include urinary frequency, urgency, nocturia (awakening at night to urinate), decreased or intermittent force of stream, or a sensation of incomplete emptying. Complications occur less commonly but may include acute urinary retention (AUR), impaired bladder emptying, the need for corrective surgery, renal failure, recurrent urinary tract infections, bladder stones, or gross hematuria. (See Presentation.) Prostate volume may increase over time in men with BPH. In addition, peak urinary flow, voided volume, and symptoms may worsen over time in men with untreated BPH (see Workup). The risk of AUR and the need for corrective surgery increases with age.

Cluster Headaches
Cluster Headaches samer kareem 6,684 Views • 3 years ago

Cluster headaches, occur in cyclical patterns or clusters, are one of the most painful types of headache. A cluster headache commonly awakens you in the middle of the night with intense pain in or around one eye on one side of your head. Bouts of frequent attacks, known as cluster periods, can last from weeks to months, usually followed by remission periods when the headaches stop. During remission, no headaches occur for months and sometimes even years. Fortunately, cluster headache is rare and not life-threatening. Treatments can make cluster headache attacks shorter and less severe. In addition, medications can reduce the number of cluster headaches.

Transcatheter Aortic Valve Implantation
Transcatheter Aortic Valve Implantation samer kareem 5,574 Views • 3 years ago

This minimally invasive surgical procedure repairs the valve without removing the old, damaged valve. Instead, it wedges a replacement valve into the aortic valve’s place. The surgery may be called a transcatheter aortic valve replacement (TAVR) or transcatheter aortic valve implantation (TAVI).

Gastric Bypass Surgery
Gastric Bypass Surgery samer kareem 6,305 Views • 3 years ago

Gastric Bypass Surgery - Maagverkleining - Weight Loss Surgery - WLS

Infarction
Infarction samer kareem 1,848 Views • 3 years ago

The occurrence and extent of cerebral infarction is determined by three basic factors: i) site of arterial occlusion, ii) the rapidity of arterial occlusion, and iii) the presence or absence of collateral circulation. Grossly, infarcts are usually divided into pale (non-hemorrhagic) and hemorrhagic types. Infarcts evolve over time, thus their gross appearance gives a clue to when they occurred. The temporal evolution of an infarct occurs in three stages: i) acute (1 day – 1 week) – the involved area is soft and edematous and there is a blurring of anatomic detail; ii) subacute (1 week – 1 month) – there is obvious tissue destruction and liquefactive necrosis of the involved brain; iii) chronic (>1 month) – the damaged tissue has been phagocytized and there is cavition with surrounding gliosis. Microscopically there is also a temporal evolution of cerebral infarcts. During the earliest phase of infarction (0-48 hours) chromatolysis and swollen eosinophilic neurons are seen. Neuronal cell necrosis and an acute inflammatory response are usually seen from 24-72 hours. This response is typically followed by an influx of mononuclear cells which begin to phagocytize necrotic debris (3-5 days). From 1-2 weeks after the infarct there is vascular proliferation and reactive astrocytosis. Over time (>1 month) the necrotic tissue will be completely removed and a cystic cavity surrounded by a glial scar will be formed.

What is Schizophrenia ?
What is Schizophrenia ? samer kareem 17,406 Views • 3 years ago

The cause of schizophrenia is still unclear. Some theories about the cause of this disease include: genetics (heredity), biology (abnormalities in the brain’s chemistry or structure); and/or possible viral infections and immune disorders.

Wound clean
Wound clean samer kareem 50,732 Views • 3 years ago

wound clean from pus

Surfactants and Surface Tension
Surfactants and Surface Tension samer kareem 1,776 Views • 3 years ago

Surfactant. Surfactants are compounds that lower the surface tension (or interfacial tension) between two liquids or between a liquid and a solid. Surfactants may act as detergents, wetting agents, emulsifiers, foaming agents, and dispersants.

Why Pregnancy Sex is So Important
Why Pregnancy Sex is So Important samer kareem 11,653 Views • 3 years ago

Sex easily falls to the wayside during pregnancy. Research shows that good sex has a significant impact upon not just the relationship, but also a woman’s ability to have an easeful and even joyful birth. Unfortunately, sex during pregnancy can be quite complicated for a variety of physical and emotional reasons. This week’s video will outline how to overcome these hurdles and make sure you continue to enjoy the wonders of sex as you embark on the first steps of parenthood.

MRI of Bone Tumor
MRI of Bone Tumor samer kareem 2,009 Views • 3 years ago

MRI of Bone Tumor

Myelodysplastic syndromes
Myelodysplastic syndromes samer kareem 7,265 Views • 3 years ago

Myelodysplastic syndromes are a group of cancers in which immature blood cells in the bone marrow do not mature or become healthy blood cells. In a healthy person, the bone marrow makes blood stem cells (immature cells) that become mature blood cells over time.Aug 12, 2015

Direct Laryngoscopy: MICU Fellows Airway Course
Direct Laryngoscopy: MICU Fellows Airway Course samer kareem 23,368 Views • 3 years ago

Direct Laryngoscopy: MICU Fellows Airway Course

Sleep Apnea Study
Sleep Apnea Study samer kareem 3,932 Views • 3 years ago

If you suspect that you have sleep apnea, the usual first step is to discuss your suspicions with your primary care physician. If you don’t have a primary care physician, you can go directly to a clinician who is a sleep specialist. But check your health care insurance coverage first. Some policies require you to see a primary care physician first, and some policies limit the sleep centers and testing facilities whose services they will pay for. Unfortunately, you may discover that your policy offers limited or no coverage for the diagnosis and treatment of sleep apnea, in which case you may wish to switch insurers if and when you can.

Comment Avoir Un Ventre Plat, Rajeuni, Rajeunir De 10 Ans En 3 Mois, Bruleur De Graisse Musculation
Comment Avoir Un Ventre Plat, Rajeuni, Rajeunir De 10 Ans En 3 Mois, Bruleur De Graisse Musculation marin vinasco 1,419 Views • 3 years ago

Comment Avoir Un Ventre Plat, Rajeuni, Rajeunir De 10 Ans En 3 Mois, Bruleur De Graisse Musculation --- http://rajeunir-de-10-ans.info-pro.co --- 5 Raisons pourquoi le Cardio Long-Lent n’est PAS bon. En passant à travers les e-mails de clients au cours des derniers jours, j'ai remarqué que beaucoup de gens font encore du cardio longue durée, à faible intensité, beurk! Voici l'affaire: si vous cherchez à obtenir un bénéfice maximal du temps que vous mettez dans vos séances d'entraînement, le cardio de longue durée à faible intensité n'est pas la voie à suivre, et pour de nombreuses raisons. Voici mon top 5: 1. Les calories brûlées minimales: 45 minutes sur le tapis roulant peuvent brûler un énorme 300 calories si vous êtes chanceux, l'équivalent de 50 grammes de graisse. En vous exerçant dix heures par semaine et vous pourriez perdre un demi-kilo! Ce qui m'amène à mon prochain point: 2. Beaucoup trop de temps consacré: Je ne sais pas pour vous, mais je n'ai pas des heures et des heures de mon temps à mettre dans l’entraînement chaque semaine. En fait, je n’ai le temps pour faire que quelques heures d'exercice par semaine, et vous savez quoi? C'est tout ce dont vous avez besoin. En fait, la recherche a montré que plus de 90 minutes par semaine peuvent être nuisibles! (Plus d'infos ici) http://rajeunir-de-10-ans.info-pro.co Au-delà de cela, le cardio à longue durée et faible intensité est: 3. Ennuyeux que diable: Assis sur un vélo d'exercice à regarder le mur en face de moi pendant 45-60 minutes? Non merci. Mais peut-être pire encore est le fait que le cardio de longue durée et à faible intensité ne fournit: Ces 5 étapes Révèlent Les Choses Que Vous Devez ABSOLUMENT ÉVITER Si Vous Voulez Ralentir Le Processus De Vieillissement, Récupérer Votre Santé Et Atteindre Un Corps Idéal. Cliquez Ici: http://rajeunir-de-10-ans.info-pro.co

Traumatic Knee Dislocation  Management
Traumatic Knee Dislocation Management samer kareem 10,634 Views • 3 years ago

Traumatic Knee Dislocation Reduction-Quick Version

WOUNDED HEART SUrgery
WOUNDED HEART SUrgery samer kareem 3,757 Views • 3 years ago

Cervical - Spinal Cord Injury
Cervical - Spinal Cord Injury samer kareem 2,219 Views • 3 years ago

DI vs SIADH
DI vs SIADH samer kareem 2,067 Views • 3 years ago

ADH's job is to act on the kidneys to promote water reabsorption. In this lesson, we'll compare and contrast diabetes insipidus, or DI, in which there is too little ADH, and syndrome of inappropriate antidiuretic hormone secretion , or SIADH, in which there is too much ADH.

Mole (NEVUS) Removal With Radio Frequency
Mole (NEVUS) Removal With Radio Frequency samer kareem 3,555 Views • 3 years ago

Eye Scleral Tattoos
Eye Scleral Tattoos Scott 4,640 Views • 3 years ago

cleral tattooing is the practice of tattooing the sclera, or white part of the human eye. The dye is not injected into the tissue, but between two layers of the eye, where it spreads out over a large area. The process is not common

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