THD® Anopress for clinical anorectal manometry - THDLAB - COM

  • Conventional anorectal manometry
  • THD® Anopress: a new approach to anorectal manometry
  • THD® Anopress: features and advantages
  • THD® Anopress: indications
  • THD® Anopress: latest news for preventing and monitoring obstetric anal sphincter injuries (OASIS)

Conventional anorectal manometry

Anorectal manometry is a fundamental test for the precise evaluation of the functionality of the anal sphincters and of the rectum. Anorectal manometry is in fact the only diagnostic test which allows for measuring the rectal sensitivity and the pressures and reflexes of anal sphincters.

However, traditional anorectal manometry is an uncomfortable test which is generally performed by liquid multi-channel transduction using a very cumbersome device. Furthermore, the specialist must often carry out the examination in a separate laboratory and the clinical evaluation of the patient is normally performed by another specialist at a later stage.

In addition to these aspects, conventional anorectal manometry has other limitations, including:

  • a need to calibrate the catheters
  • a very wide range of values considered normal and abnormal
  • difficulty in interpreting data

THD® Anopress: a new approach to anorectal manometry

THD® Anopress is an innovative portable anorectal manometer which overcomes many of the limitations associated with traditional anal manometry. THD® Anopress allows to correlate the collected data to the patient's symptoms in a simple and fast way, making standardised and replicable pressure values immediately available.

In this way, the specialist performing the exam can immediately evaluate the results and associate them to different pathological conditions. The association between the results of the manometry and specific colorectal diseases is based on the interpretation of a curve which describes the sphincter activity at different times.

The THD® Anopress portable system consists of an anorectal manometer with dedicated software and single-use probes specially developed for use with the THD® Anopress manometer.

THD® Anopress

The THD® Anopress manometer is compact, lightweight, battery operated and is compatible with most PCs. The manometer can be connected via Bluetooth to many PCs and laptops both for storing and sharing data and for printing.

THD® Anopress is equipped with an LED screen which shows pressure values from a numerical and morphological point of view in real time. The controls on the manometer panel allow you to easily manage the different stages of the exam.

THD® PressProbe and THD® SensyProbe

The THD® Anopress system includes single-use probes, specially designed to be used in combination with the THD® Anopress manometer:

  • THD® PressProbe: for the evaluation of the average sphincter tone. The THD® PressProbe has an ergonomic handle and an atraumatic profile to minimise patient discomfort.
  • THD® SensyProbe: for the evaluation of the average sphincter tone, the rectoanal inhibitory reflex (RAIR) and rectal sensitivity. The THD® SensyProbe has an ergonomic handle and an atraumatic profile to minimise patient discomfort.

THD® Anopress software

The THD® Anopress system is equipped with a dedicated software with a user-friendly interface. The software allows the specialist to create medical records for each patient, to keep track of their medical history, to compare current data with previously collected data and to manage further manometric examinations.

The diagrams based on the data collected during the exams show the pressure variations in real time.


THD® Anopress: features and advantages

The THD® Anopress system offers exclusive features and advantages:

  • Quick and easy to use:
    • the doctor can carry out the test independently without the assistance of nursing staff.
    • rapid learning curve.
    • it does not require a lengthy patient preparation before the examination.
    • suitable for immediate use in different contexts, from the clinic to the patient's home.
    • short exam duration: from 5 to 10 minutes.
  • Direct interpretation of data:
    • average pressure values immediately available during the exam.
    • numerical and graphic display of the results in real time.
    • intuitive functional diagnosis and assessment of muscle activity.
    • immediate evaluation and interpretation of the data by the specialist without the need to contact external centres.
  • Precise and standardised:
    • accurate analysis of pressure values during different functional phases.
    • standardised and replicable values, independent from the operator and from the instruments.
    • self-calibration for a precise and continuous pressure measurement along the entire anal canal.
    • automatic activation of the system without the need for initial calibration.
    • pressure data and examination reports stored in dedicated patient files.
  • Compact and lightweight:
    • ergonomic.
    • easily transportable.
    • lightweight: only 630 gr.
  • Cost-effective:
    • system with limited maintenance.
    • single-use probes which do not require maintenance.

THD® Anopress: indications

The most frequent indications for clinical anorectal manometry are:

  • active and passive faecal incontinence.
  • obstructed defecation syndrome.
  • chronic constipation.
  • obstetric damage or post-partum sphincter lesions.
  • lesions of the peripheral nervous system due to trauma, diabetes or sclerosis.
  • pre-operative or post-operative monitoring of sphincter repair operations.
  • pre-operative or post-operative monitoring of surgical operations in the anorectal region (i.e. anal fissures, anal fistulas etc.).

THD® Anopress: latest news for preventing and monitoring obstetric anal sphincter injuries (OASIS)

Obstetric anal sphincter injuries (OASIS) are the commonest cause of anal incontinence in women of reproductive age. Prediction of anal sphincter injuries may improve the prevention of anal sphincter injuries and improve patient quality of life. Both women and clinicians should be aware of the high risk of sphincter defects following vaginal delivery even when there is no clinical suspicion. New diagnostic tools such as THD® Anopress help preventing and monitoring OASIS.

Below you can watch two videos where Mr. Alex Leo (Consultant General and Colorectal Surgeon, Northwick Park & St Marks Hospital – UK) and Ms Supriya Bulchandani, (Consultant Obstetrician, University Hospital Coventry - UK) explain their activity and research, showing the actual results gained.

Early diagnosis and monitoring of OASIS to prevent and delay FI. Part 1/2. Mr Alex Leo

Early diagnosis and monitoring of OASIS to prevent and delay FI. Part 2/2 . Mrs Bulchandani.

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