Institute of Urology

  Contact Number: 711-41-41 loc 538

Brief History:

The Institue was conceptualized as early as 2009 under Dr. James G. Dy Ph.D-President of CGHMC, Mr. Florante Dy-Chairman of the Board of Directors and Dr. Alfonso S. Chan-Medical Director. The Siemens Modularis Vario ESWL machine and the Laborie Urodynamic machine were purchased soon after. The Institute acquired its present area and was blessed on August 2, 2010. Our first patient was served on the 5th day of the same month.

Mission/Vision of the Institute:


A globally competitive provider of best comprehensive Urological care.


We produce state of the art urological services performed by a committed, competent, compassionate and multi-disciplinary team of professionals.

General Policies:

1. CGHIU is equipped with state of the art machineries (Siemens Modularis Variostar Plus and Laborie Dorado KT) for accurate diagnostic and performance on up-to -date ESWL and Urodynamic procedure.

2. CGHIU is staffed with a team of:

     a. Attending Urologist (accredited by the Medical Director and Institute Head of Urology)

     b. Institute Manager

     c. Registered Nurses

     d. Registered Radiologic Technologists

     e. Nursing Orderly

     f. Clerk

3. CGHIU renders services to both admitted patient and out-patient.

4. The CGHIU is open on Monday, Tuesday, Wednesday and Friday from 7:00am to 5:00 pm, and on Thursday, Saturday from 7:00 am to 3:00 pm except Sunday and legal holidays.

What is Extracorporeal ShockWave Lithotripsy (ESWL)?

ESWL is the non surgical treatment of urinary tract stones. The stone is fragmented with sound waves into the smallest size possible and are passed out through the normal urinary tract. The ultimate goal is enough fragmentation to cleanse the system of all the stones.

How does Extracorporeal ShockWave Lithotripsy (ESWL) work?

The principle and the technology behind lithotripsy is simple. The patient is asked to lie on the ESWL bed. The stone is then localized using an Ultrasound device and an X-Ray machine. Once the stone has been identified, shockwaves generated by the machine are aimed towards the stone.

The procedure lasts from 1 1/2 to 2 hours and may be performed on an out-patient (OP) basis. There are some instance when re-treatments may be necessary especially for stones of larger sizes. The patient may return back to work in less than 24 hours depending on the pain threshold of the patient.

ESWL is a relatively safe procedure. It is noninvasive and conducted under the supervision of a highly trained physician together with an anesthesiologist and a radiologic technologist.

Known side effects are manageable and not life threatening to the patient.

What is Urodynamics?

This Section of Urology is dedicated to the patients young and old who have difficulty emptying their bladder. This subset of men, women and children do not respond to run-of-the-mill treatment. Many man-hours were already lost to consultations and trials but no progress in sight. Urodynamics/Videourodynamics with neurological evaluation is requested to explain the problem and address them according to the underlying cause.

Who are candidates to this study?

  • Men and women who cannot empty their bladder. Patients needing a catheter to drain their bladder. They usually have multiple medical diseases such as hypertension, neurological deficits, diabetes mellitus, etc and on multiple drug therapy.
  • Men and women with Chronic Pelvic Syndrome. Patients have long been suffering from vague unrelenting lower abdominal pains and discomforts.
  • Men and women with severe frequency of urination. This people practically spend so much time in the toilette and are obsessed on knowing where the bathrooms are in any place they go.
  • Men and women who cannot control their urine. They are commonly called incontinence. Incontinence can have multiple causes; urodynamcis is used to identify the specific cause.
  • Bedwetting children
  • Daytime wetters
  • Neurogenic bladers. These patients suffer from spinal cord injuries or of diseases that affect the spinal cord. Left uncorrected, many of these patients will have renal damage.

The bladder (the container that holds urine) and the sphincter (the faucet that keeps the urine from leaking) and the brain/spinal cord (the big nerve at the back) maintain a delicate balance. Due to diseases that affect any of these organs, the balance is tipped causing tremendous discomfort and disorder to the patient. The urodynamics role is to point which one is the culprit so it can be addressed properly.

Urodynamics has to be done in a special laboratory with the urodynamic machine. The urodynamic machine is a computer that reads the bladder activity in conjunction with the sphincter activity. Patients are also asked to urinate on a special bowl connected to the computer. These readings are collated by the Urodynamicists, and he correlates them to the clinical manifestations of the patients. If further workups are needed the x-ray machine or ultrasound machine is brought in. At times sophisticated muscle and nerve activities are needed. After a diagnosis is made, a program is laid down and discussed with the patient and relatives; expectations, interventions when needed, home prgrams and medications.


Institute of Urology-Organizational Chart

Fernando Parreño, M.D.

Institute Head

David Bolong, M.D.

Assistant Head

Maria Luisa Balanon, R.N.

Institute Manager

Maria Shyrell C. Tomas, R.N.

Urology Nurse

Wynallie May A. Pagulayan, R.N.

Urology Nurse

Aureo D. Corrales III, RRT

Urology Radiologic Technologist

Marcelino R. Lapinid III, RRT

Urology Radiologic Technologist