ISSN: 2544-4395
Physiotherapy Quarterly
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vol. 31
Original paper

Response of salivary flow rate to transcutaneous electrical nerve stimulation in haemodialysis patients

Ali Mohamed Ali Ismail
Mohamed Ibrahim Abdelhay
Ramy Salama Draz

Department of Physical Therapy for Cardiovascular/Respiratory Disorder and Geriatrics, Faculty of Physical Therapy, Cairo University, Giza, Egypt
Department of Basic Science, Faculty of Physical Therapy, Cairo University, Giza, Egypt
Physiother Quart. 2023;31(1):23–27
Online publish date: 2023/01/10
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Hyposalivation is one of the common oral complications in end-stage renal disease. This study aimed to assess the immediate and 3-week effects of transcutaneous electrical nerve stimulation (TENS) on hyposalivation in end-stage renal disease patients on maintenance haemodialysis.

Overall, 80 haemodialysis patients with hyposalivation complaints (40 diabetics and 40 nondiabetics with a mean age of 59.35 ± 9.59 and 59.45 ± 9.66 years, respectively) were treated with 20-minute extraoral TENS (50 Hz and 250 µs pulse duration) applied bilaterally to parotid glands for 3 successive weeks (3 sessions per week). Besides the baseline measurement, the whole resting saliva was collected immediately after the first and last TENS sessions in a graduated test tube via the 5-minute low forced spitting method. The whole resting salivary flow rate (WRSFR) (ml/min) was calculated by dividing the collected salivary volume by the 5-minute collection period.

When the baseline WRSFR mean was compared with its value after the first or last TENS session, WRSFR showed a highly significant increase in diabetic and nondiabetic haemodialysis patients.

Extraoral electrostimulation via TENS is an effective therapeutic modality for hyposalivation in end-stage renal disease patients on maintenance haemodialysis.


saliva, electrostimulation, transcutaneous electrical nerve stimulation, haemodialysis, diabetes mellitus, chronic renal failure

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