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Memorial Hermann Medical Group Colon & Rectal Surgery Southeast

Medical Plaza 2
11920 Astoria Blvd Ste 490
Houston, TX 77089
Clinic Hours:
Monday - Friday: 8:30am - 5:00pm

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Meet the Colon & Rectal Surgery Southeast Medical Providers

Dr. Theodoros Voloyiannis

Theodoros Voloyiannis, M.D.
Colon & Rectal Surgery

ScheduleNow Memorial Hermann Medical Group

Wray SE

Ashley Wray, MPAS, MPH, PA-C
Physician Assistant

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About Your MHMG Colon & Rectal Southeast Clinic

Memorial Hermann Medical Group welcomes you to our Colon & Rectal Surgery Southeast location. We offer comprehensive, integrated care backed by the vast clinical resources of Memorial Hermann. Our patients enjoy:

  • A relationship with a physician founded on compassion 
  • Electronic Medical Records for secure, immediate access to your family's vital medical records 
  • Online Patient Portal, which gives you access to your chart information, allowing you to actively monitor your health, schedule appointments and communicate directly with your doctor 
  • Access to some of the best specialists and most advanced medical technology available in southeast Houston 

Pelvic Floor Muscle Disorders

In addition to providing expert clinical care in conditions such Inflammatory Bowel Disease, Colon & Rectal Cancer, and anorectal disorders, the Memorial Hermann Medical Group Southeast Colon & Rectal Surgery Clinic are specially trained to care for patients with bowel incontinence and pelvic floor dysfunction.

“Pelvic floor muscle disorders such as bowel incontinence, obstructive defecation, and chronic pelvic pain are disabling conditions that can affect up to 13 million Americans each year, especially women,” said Theodoros Voloyiannis, M.D., FACS, FASCRS. “These conditions are often seen as embarrassing for patients and many do not seek treatment for their symptoms for years.”

What Are Some of the Symptoms of Pelvic Floor Muscle Disorders?

  • Stool or gas accidents to the point they affect your daily life
  • Decreased defecatory sensation (not being able to feel when you’re having a bowel movement)
  • Difficulty with evacuating your bowels
  • Pelvic pain
  • Urinary incontinence
  • Pain during intercourse or when using tampons

What Are Some Risk Factors For Developing a Pelvic Floor Muscle Disorder?

  • Age
  • Obesity
  • Multiple pregnancies and vaginal deliveries
  • Obstetric trauma such as episiotomies
  • Previous anorectal procedures such as hemorrhoidectomy

How Are Pelvic Floor Muscle Disorders Diagnosed?

The first step is to be seen in the clinic for a thorough medical history and physical exam to assess the severity of your symptoms, and to generate an appropriate treatment plan. Once completed, anal physiology studies may be required to further evaluate the anatomy, neural reflexes, and function of the sphincter muscle, and are performed in the office. These non-invasive diagnostic studies include anorectal manometry, electromyography (EMG), and endoanal ultrasound, and can be completed in approximately 30 minutes.

How Are Pelvic Muscle Floor Disorders Treated?

Management of pelvic floor disorders is uniquely determined for each patient, and includes non-surgical management to surgical repair of the sphincter muscle, or sphincteroplasty. Many patients benefit from lifestyle and dietary modification as well as pelvic floor rehabilitation, which enhances pelvic muscle awareness, strength, endurance, and improves bowel incontinence. However, sometimes surgical intervention may be the best option for some patients, and include procedures ranging from sphincteroplasty to advanced minimally invasive procedures such as Interstim or Solesta. All these procedures can be performed in an outpatient setting, and are designed to minimize pain, reduce scarring, and decrease recovery time.

We are very excited to launch the Pelvic Floor Muscle Disorder Center at the Memorial Hermann Medical Group Southeast Colon & Rectal Surgery Clinic,” an affiliate of the Memorial Hermann Health System, the largest healthcare provider in the city of Houston. “Now, patients with pelvic floor muscle disorders can seek consultation, diagnostic evaluation and treatment in one location. This makes it more convenient and cost effective and less confusing and time-consuming for patients. The goal is to provide long term relief of symptoms so patients can return to their normal daily lives as soon as possible,” said Ashley Wray MS, MPH, PA-C.

Southeast Campus Map

There are several visitor parking lots near the Memorial Hermann Southeast Hospital campus.

Southeast Campus Map

Colon Rectal Surgery Southeast Photo Gallery

  • Take a glimpse at the Memorial Hermann Medical Group Southeast Colon & Rectal Surgery building
  • Take a glimpse at the spacious waiting area at Memorial Hermann Medical Group Southeast Colon & Rectal Surgery
  • Patient room at Memorial Hermann Medical Group Southeast Colon & Rectal Surgery

Patient Testimonials

Everyone was very professional while still being helpful and friendly. - Anonymous

Dr. Voloyiannis was very professional, compassionate, gave clear instruction & information regarding my condition & potential outcomes. He made me very comfortable with my potential procedures & outcomes. - Patient of Dr. Voloyiannis