Dr. Dennis Michael O'brien MD

Recommended Articles

• The Difference Between Gastric Bypass Surgery and Gastric Sleeve

  Weight loss surgeries, which are also collectively referred to as bariatric surgery are done when dietary and exercise treatment plans fail to work. More often, patients undergo this kind of surgery if their health is at risk due to their heavy weight. A bariatric operation can be done to obese...

• Allergy Reality Launches Tools for Advocating and Educating Those with Food Sensitivities

  The beginning of a new school year is an exciting time for students and parents alike. Many students look forward to meeting up with friends and sharing about their summer vacation adventures. Also, there’s the prospect of meeting new teachers and learning more about the world around them as well...

• Potential Causes of Leukopenia

  IntroductionA decrease in the number of white blood cells (WBCs) is referred to as leukopenia. There are several causes for leukopenia. It may be due to certain drugs, cancer, radiation and chemotherapy for cancer, stem cell transplant, surgery, steroids, or autoimmune disorders. The immune system...

• Purpura

  PurpuraPurpura refers to purple-colored spots that are usually seen on the skin, including mucous membranes and other organs. It is also called skin hemorrhages or blood spots.Purpura is usually recognized when there is pooling of blood under the skin due to ruptured small blood vessels. The size of...

• How Is Leukemia Diagnosed?

  Leukemia in its early stages may present no signs or symptoms, as these only appear when the leukemia cells have taken over a large number of normal blood cells. A person with leukemia is very lucky indeed if early-stage detection occurs incidentally, through a routine blood test or one done for...

• Study Finds 3% of Pediatric Non-Hodgkin Lymphoma Cases Are Transplant Recipients

  Lymphoma is a blood cancer that affects both children and adults.Lymphoma begins its growth in the lymphatic white blood cells of the lymph system. This system is a major warrior in fighting off infections and diseases. It is part of the body’s immunity team.The lymph system loops throughout the...