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What is   Left Ventricular Assist Device ?
What is Left Ventricular Assist Device ? samer kareem 2,575 Views • 3 years ago

A ventricular assist device (VAD) — also known as a mechanical circulatory support device — is an implantable mechanical pump that helps pump blood from the lower chambers of your heart (the ventricles) to the rest of your body. A VAD is used in people who have weakened hearts or heart failure. Although a VAD can be placed in the left, right or both ventricles of your heart, it is most frequently used in the left ventricle. When placed in the left ventricle it is called a left ventricular assist device (LVAD). You may have a VAD implanted while you wait for a heart transplant or for your heart to become strong enough to effectively pump blood on its own. Your doctor may also recommend having a VAD implanted as a long-term treatment if you have heart failure and you're not a good candidate for a heart transplant.

The Human Body in Numbers
The Human Body in Numbers samer kareem 3,476 Views • 3 years ago

The Human Body in Numbers.

GIT endoscopy with biopsy
GIT endoscopy with biopsy Scott 17,769 Views • 3 years ago

An older patient with stomach pain, and the typical heart burning. We did some biopsies for evaluation of dyplasia.

Hernia
Hernia samer kareem 62,938 Views • 3 years ago

A hernia occurs when an organ or fatty tissue squeezes through a weak spot in a surrounding muscle or connective tissue called fascia. The most common types of hernia are inguinal (inner groin), incisional (resulting from an incision), femoral (outer groin), umbilical (belly button), and hiatal (upper stomach).

What is Nasal Polyp?
What is Nasal Polyp? samer kareem 1,769 Views • 3 years ago

Nasal polyps are soft, painless, noncancerous growths on the lining of your nasal passages or sinuses. They hang down like teardrops or grapes. They result from chronic inflammation due to asthma, recurring infection, allergies, drug sensitivity or certain immune disorders. Small nasal polyps may not cause symptoms. Larger growths or groups of nasal polyps can block your nasal passages or lead to breathing problems, a lost sense of smell and frequent infections. Nasal polyps can affect anyone, but they're more common in adults. Medications can often shrink or eliminate nasal polyps, but surgery is sometimes needed to remove them. Even after successful treatment, nasal polyps often return.

Understanding multiple sclerosis and what it does to the body
Understanding multiple sclerosis and what it does to the body samer kareem 5,610 Views • 3 years ago

Multiple sclerosis (MS) is a disease of the central nervous system estimated to affect 2.3 million people worldwide. It is a chronic disease in which the immune system abnormally attacks the insulation and support around the nerve cells (myelin sheath) in the brain, spinal cord and optic nerves, causing inflammation and consequent damage. MS is a leading cause of non-traumatic disability in young people, usually striking between 20 and 40 years of age. There is no cure for MS, but research continues to better understand and treat the disease.

Endoscopic Sphenopalatine Artery Ligation
Endoscopic Sphenopalatine Artery Ligation Doctor 24,950 Views • 3 years ago

A 55-year-old man presented with recurrent epistaxis. After endoscopic sphenopalatine artery cauterization, the bleeding stopped. The patient was doing well at last follow up.

Myringotomy
Myringotomy Doctor 15,556 Views • 3 years ago

Myringotomy is the surgery to place tubes in the ear. This animated video reviews the anatomy of the ear and what happens after frequent infection. As well as treatment with tubes in the ear or myringotomy.

Pulmonary Artery Catheterization
Pulmonary Artery Catheterization samer kareem 1,625 Views • 3 years ago

Any independent vertical movement of the transducer or the patient will affect the hydrostatic column of this fluid-filled system and thus alter the pressure measurements. At some time before or after PAC insertion, the system must therefore be zeroed to ambient air pressure. The reference point for this is the midpoint of the left atrium (LA), estimated as the fourth intercostal space in the midaxillary line with the patient in the supine position. With the transducer at this height, the membrane is exposed to atmospheric pressure, and the monitor is then adjusted to zero. Calibration Once zeroed, the monitoring system must be calibrated for accuracy. Currently, most monitors perform an automated electronic calibration. Two methods are used to manually calibrate and check the system. If the catheter has not been inserted, the distal tip of the PAC is raised to a specified height above the LA. For example, raising the tip 20 cm above the LA should produce a reading of approximately 15 mm Hg if the system is working properly (1 mm Hg equals 1.36 cm H 2 O). Alternatively, pressure can be applied externally to the transducer and adjusted to a known level using a mercury or aneroid manometer. The monitor then is adjusted to read this pressure, and the system is calibrated. Dynamic tuning Central pressures are dynamic waveforms (ie, they vary from systole to diastole) and thus have a periodic frequency. To monitor these pressures accurately, the system requires an appropriate frequency response. A poorly responsive system produces inaccurate pressure readings, and differentiating waveforms (eg, PA from pulmonary capillary wedge pressure [PCWP]) can become difficult. When signal energy is lost, the pressure waveform is dampened. Common causes of this are air bubbles (which are compressible), long or compliant tubing, vessel wall impingement, intracatheter debris, transducer malfunction, and loose connections in the tubing. A qualitative test of the frequency response is performed by flicking the catheter and observing a brisk high-frequency response in the waveform. After insertion, the system can be checked by using the rapid flush test. When flushed, an appropriately responsive system shows an initial horizontal straight line with a high-pressure reading. Once the flushing is terminated, the pressure drops immediately, which is represented by a vertical line that plunges below the baseline. A brief and well-defined oscillation occurs, followed by return of the PA waveform. A dampened system will not overshoot or oscillate, and causes a delay in returning to the PA waveform.

Transjugular Intrahepatic Porto-Systemic Shunt
Transjugular Intrahepatic Porto-Systemic Shunt samer kareem 1,612 Views • 3 years ago

Transjugular intrahepatic portosystemic shunt or transjugular intrahepatic portosystemic stent shunting (commonly abbreviated as TIPS or TIPSS) is an artificial channel within the liver that establishes communication between the inflow portal vein and the outflow hepatic vein.

Clavicle Giant Cell Tumor Resection
Clavicle Giant Cell Tumor Resection DrHouse 12,261 Views • 3 years ago

wide resection of giant cell tumor ,then strut grafting using free fibula graft,knowles pinning of the graft.

Histology of Active Breast
Histology of Active Breast Histology 12,022 Views • 3 years ago

Histology of Active Breast

Penile Implant for Erectile Dysfunction
Penile Implant for Erectile Dysfunction Scott 8,112 Views • 3 years ago

See how the penile implant for erectile dysfunction work

Supra Pubic Catheter change
Supra Pubic Catheter change samer kareem 8,681 Views • 3 years ago

A suprapubic catheter is a hollow flexible tube that is used to drain urine from the bladder. It is inserted into the bladder through a cut in the tummy, a few inches below the navel (tummy button).

Artificial womb
Artificial womb samer kareem 2,401 Views • 3 years ago

Artificial womb could allow babies to develop outside the mother’s uterus

Dilated Cardiomyopathy
Dilated Cardiomyopathy samer kareem 2,537 Views • 3 years ago

Dilated cardiomyopathy (DCM) is a condition in which the heart's ability to pump blood is decreased because the heart's main pumping chamber, the left ventricle, is enlarged and weakened.

Popping GIANT Pimple at Girl's arm
Popping GIANT Pimple at Girl's arm samer kareem 11,278 Views • 3 years ago

Popping GIANT Pimple at Girl's arm, Finally pop it.

Aspirin fights against cancer
Aspirin fights against cancer Doctor 7,411 Views • 3 years ago

A new well designed randomized study has suggested that long term baby aspirin usage may aid in fight against cancer. The suggested mechanism is that cancers induce inflammatory responses so the anti-inflammatory mechanism of prostaglandins inhibitors may cease the progress of many cancers. There are some concerns about the study because despite the well-designed randomized study; the study didn't include a satisfying number of female participants. The study was also conducted on esophageal, colorectal and lung cancers.

USMLE Step 2 CS - Numbness Weakness Full Video
USMLE Step 2 CS - Numbness Weakness Full Video usmle tutoring 14,005 Views • 3 years ago

USMLE Step 2 CS - Numbness Weakness Full Video

Brazilian Butt  Lift
Brazilian Butt Lift samer kareem 3,306 Views • 3 years ago

The surgical procedure uses your own fat, so it is the most natural way to augment your buttocks. Over the last few years, the buttocks have received more press coverage than ever before. People of all ages and body types are having the Brazilian Butt Lift procedure.

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