Saturday, February 8, 2014

Interview with a Cervical Cancer Expert- Dr. Brendan B. Mitchell


On January 29, 2013, our group had the privilege of speaking with a cervical cancer expert, Dr. Brendan Mitchell, M.D. Dr. Mitchell graduated St. Louis University School of Medicine in 1990, and he completed his residency in 1994. He is now a specialist in women’s care in obstetrics and gynecology in the Kansas City area. He expressed that he chose this medical specialty because it is a good balance of both the surgical and primary care aspects of medicine, and he said that delivering babies was one of his favorite parts of his job. Dr. Mitchell is active in the pro-life movement, and he expressed that this issue is of great importance to him. Dr. Mitchell cooked a delicious dinner, and we enjoyed lighthearted conversation and conducted our interview while sharing a meal. Before beginning the interview, we explained grid computing and how our project on cervical cancer was involved in the research grid “Mapping Cancer Markers.” Dr. Mitchell expressed that he had read about grid computing, and he was impressed and interested in our project.

            Dr. Mitchell stated that he does not have any current patients with cervical cancer and that cases of cervical cancer are not very common in his practice. However, in the past, he has seen cases of cervical cancer in both practice and residency. He stressed that most of the patients who are diagnosed with cervical cancer are those that have forgone pap smears for numerous years, and all test positive for HPV (Human Papilloma Virus). Because our project is for evolution, we asked Dr. Mitchell for a reason that doctors treating cervical cancer should know about evolution. He responded that there are different strains of HPV that have evolved through time, and evolution helps doctors understand how the virus will affect the host through different processes.

            “Finding a cure is pretty important; however prevention and early detection are the keys to eliminating cervical cancer. Prevention has already helped us immensely,” Dr. Mitchell stated. The primary method of prevention of cervical cancer, according to Dr. Mitchell, is a routine Pap smear. The results are either normal or abnormal, and the “abnormal” range includes many different diagnoses. “The biggest misconception regarding cervical cancer is that an abnormal Pap smear automatically means cancer,” said Dr. Mitchell. The Pap can come back identifying ASCUS, or atypical squamous cells of undetermined significance. This ASCUS can either be positive or negative for high-risk HPV. If negative, a repeat Pap should be performed. If positive, it can be either LGSIL, or low-grade squamous intraepithelial lesion, or HGSIL, high-grade squamous intraepithelial lesion. Dr. Mitchell says that both of these can be further investigated by a colposcopy.

             In this procedure, the vagina is opened and the cervix is sprayed with vinegar. The vinegar dehydrates the abnormal cells, making them appear white. A biopsy of these cells is then taken, which can be negative or positive for cervical intraepithelial neoplasia. If positive, there are 3 grades of classification. Grades 1 and 2 are things to just watch with the possibility of converting back to normal cells. Grade 3 is referred to as carsinoma “in situ”. This can be further classified into micro- or macro-invasive cervical cancer. From there, Dr. Mitchell would refer the patient to an oncologist. In Dr. Mitchell’s practice, he has only seen about 2 patients with cervical cancer that regularly receive yearly Paps. Those who don’t see a doctor every year and come in without having a Pap in the last ten years are much more likely to present with cervical cancer.
           
            He said he couldn’t stress enough to his patients that yearly checkups and vaccines are what save lives. “New vaccines and implementing new vaccines each year is crucial. It’s difficult to implement these new vaccines because of the social stigma that comes along with the HPV vaccine. Parents don’t want to vaccinate their kids because they think it will influence their behavior and might think it’s alright to be sexually promiscuous,” Dr. Mitchell said. This side of the vaccine has made it less widespread, especially among those with strong religious convictions regarding premarital sex.

            Interviewing Dr. Mitchell was very informative and enjoyable. The interview aspect of this project was beneficial in that we were able to learn about Dr. Mitchell’s first hand experiences with cervical cancer, and we expanded our knowledge of the subject. We were pleasantly surprised to learn that the number of individuals battling cervical cancer is much lower than we initially expected and that he believes the number of cases each year is decreasing. We also learned that yearly exams are key to identifying any problems, and this made us feel more aware and educated about our own health. Our group is very appreciative that Dr. Mitchell was friendly, open, and honest when sharing his time and expertise with us.