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Cooling: a new approach to bladder denervation

T Philp, J C Smith, W Hills

British Journal of Urology

|December 1, 1982

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Cooling the rabbit urinary bladder to near freezing selectively damaged intramural nerves. While bladder muscle function remained intact, this nerve damage led to significantly increased bladder capacity in most rabbits.

Area of Science:

Urology
Neurosurgery
Histology

Background:

Nerve damage can affect organ function.
Selective nerve destruction is a potential therapeutic strategy.

Purpose of the Study:

To investigate the effects of hypothermia on urinary bladder nerves.
To assess the impact of nerve damage on bladder function and capacity.

Main Methods:

In vivo intracavity cooling of rabbit urinary bladders to 0-5°C.
Histological assessment using silver staining for nerve integrity.
Functional evaluation via in vivo cystometry and in vitro pharmacology.

Main Results:

Partial denervation of intramural nerves was observed.

Related Experiment Videos

Other bladder tissues remained histologically normal.

Detrusor muscle function was unaffected.

11 of 18 rabbits exhibited long-term increases in conscious bladder capacity.

Conclusions:

Hypothermia can selectively target and damage intramural nerves in the urinary bladder.
This nerve damage, without affecting muscle function, can lead to increased bladder capacity.
Selective nerve cooling presents a potential method for managing bladder capacity issues.