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CompletedNCT06637085Updated Oct 15, 2024

Acu Tens Versus Low Level Laser After Open Heart Surgeries

An interventional study of LLLT and traditional physical therapy in Heart Arrhythmia, sponsored by Cairo University. Completed at 1 site in Egypt. Open to participants aged 45 Years to 60 Years. Per ClinicalTrials.gov, last updated 2024-10-15.

Sponsored by Cairo University · Not applicable, Interventional, and Supportive care

From the registry’s dates

  • Registered 1 year 3 months after the study started (first participant enrolled Jan 2023, registered May 2024).
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
45 Years to 60 Years
Sex
All
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Study summary

Increase in heart rate (HR) is a normal sympathetic response to body trauma and a common consequence of major surgical procedures,A high resting HR is associated with increased myocardial work that may be detrimental to patients with a marginal myocardial oxygen supply,the aim of this study is To compare between the effects of Acu TENS and low level laser therapy on autonomic and hemodynamic instability after open heart surgery.

Read the detailed description

Autonomic function reached lowest values 3-6 days after coronary artery by pass graft (CABG) and could take up to 60 days to return to pre-surgery values (pedro et al., 2005).

Alterations in pulse may provide a first indication that a patient is developing hemodynamic instability. While many factors may influence the pulse rate, including fever, exercise, medications, and thyroid hormone status, a high pulse rate is often a sign of high levels of endogenous catecholamines, blood loss or dehydration (Jonathan ,2009.) Hemodynamically unstable patients don't have enough pressure in the circulatory system to keep blood flowing reliably to all the various parts of the body where it needs to be at the same time.

Vagus nerve stimulation (VNS) can increase HRV and reduce sympathetic nerve outflow, which is desirable in conditions characterized by enhanced sympathetic nerve activity .

Application of Acu-TENS over acu-point PC6 facilitated a faster return of resting HR to preoperative levels, maintained BP during the acute postoperative period and enhanced a quicker return of rate pressure product (RPP), in patients after acute cardiac surgery .

Faster return of the raised resting HR to preoperative levels in Acu-TENS application was possibly due to induced vagal stimulation and/or inhibition of sympathetic neural activity through the acu-points PC6 .

Low level laser therapy (LLLT) is a non-invasive and safe method, to recover parasympathetic/sympathetic nervous system balance .

this study show the differences between the effect of Acu TENS and low level laser therapy on autonomic and hemodynamic instability after open heart surgery

02

Conditions studied

  • Heart Arrhythmia

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03

In context

Arrhythmias, Cardiac

915 studies on the registry are indexed under Arrhythmias, Cardiac; 234 are open to participants now.

This study's enrollment of 60 is below the median of 97 across 443 interventional studies indexed under Arrhythmias, Cardiac.

Browse Arrhythmias, Cardiac studies →

Lead sponsor

Cairo University is the lead sponsor of 4,907 studies on the registry; 1,445 are open to participants now.

Of its 37 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
45 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 1- 60 patients from both sexes . 2- undergo cardiac surgery through a median sternotomy. 3- age will be ranged from 45-65 years old. 4-Body mass index from 25 to 29.9 kg/m25-

Exclusion criteria

Exclusion Criteria:

  • 1- Previous thoracic surgery. 2- Emergency or urgent cardiac surgery. 3- hypoxemia with partial pressure of oxygen in arterial blood \<60 mmHg. 4- Renal insufficiency with serum creatinine ≤1.8 mg/dl after surgery. 5- Other medical conditions such as uncontrolled diabetes, and hypertension . 6- Patients who are unable to follow verbal instructions.
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Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
60 participants (actual)

Study arms

  • Experimental
    LLLT group

    The LLLT group consist of (20) patients, who will receive the vagus nerve stimulation through LLLT from the first day postoperative until the seventh day, in addition to routine physiotherapy program

    Device: LLLT · Other: traditional physical therapy

  • Experimental
    ACU tens group

    The acu tense group consist of (20) patients, who will receive the acu tens on (pc6) point from the first day postoperative until the seventh day, in addition to routine physiotherapy program

    Other: traditional physical therapy · Device: ACU TENSE

  • Active comparator
    control group

    The control group consist of (20) patients, who will receive only routine physiotherapy program (phase I cardiac rehabilitation, breathing exercises, modified postural drainage, percussion and vibration)

    Other: traditional physical therapy

Interventions

  • DeviceLLLT

    low level laser therapy Probe laser device: (Laserklasse2M, EN60825-1, +A2:2002, W.L= 635-670nm, P\<6mW, German):low level laser therapy It will be used to stimulate vagus nerve .

  • Othertraditional physical therapy

    traditional physical therapy include (phase I cardiac rehabilitation, breathing exercises, modified postural drainage, percussion and vibration)

  • DeviceACU TENSE

    Acu-TENS device (Digital TENS, EAF20, JERF20BD0604, add manufacturing country): It will be used to stimulate vagus nerve throug h the acupoint PC6 .

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What researchers measure

Primary outcomes

  1. heartrate variability.

    SDANN Standard deviation of the averages of RR intervals in all 50minute segments of a 24-hour recording.rMSSD Square root of the mean of the squares of differences between adjacent RR intervals

    Time frame: heart rate variability parameters recorded for 24 hours 1st day post operative and at the last day before discharge from hospital for each group. before discharge from hospital .

Secondary outcomes

  1. Atrial fibrillation

    Atrial fibrillation occurs in 10% to 65% of patients after cardiac surgery, usually on the second or third postoperative day. Postoperative atrial fibrillation is associated with increased morbidity and mortality and longer, more expensive hospital stay

    Time frame: AF recorded in 24 hours 1st day post operative and at the last day before discharge from hospital for each group.

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Study locations

1 site
  • Kasr Ainy Hospital
    Cairo, Egypt
08

References and documents

Publications

  • Chandler HK, Kirsch R. Management of the Low Cardiac Output Syndrome Following Surgery for Congenital Heart Disease. Curr Cardiol Rev. 2016;12(2):107-11. doi: 10.2174/1573403x12666151119164647. PubMed 26585039 ↗
  • Demirel S, Akkaya V, Oflaz H, Tukek T, Erk O. Heart rate variability after coronary artery bypass graft surgery: a prospective 3-year follow-up study. Ann Noninvasive Electrocardiol. 2002 Jul;7(3):247-50. doi: 10.1111/j.1542-474x.2002.tb00171.x. PubMed 12167187 ↗
  • Syuu Y, Matsubara H, Hosogi S, Suga H. Pressor effect of electroacupuncture on hemorrhagic hypotension. Am J Physiol Regul Integr Comp Physiol. 2003 Dec;285(6):R1446-52. doi: 10.1152/ajpregu.00243.2003. Epub 2003 Jul 31. PubMed 12893654 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 15, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06637085
Lead sponsor
Cairo University
Responsible party
haidy mustufa elmessallamy (assisstanr lecture at faculty of physical therapy, Cairo University) — Principal investigator
First posted
Oct 15, 2024
Start date
Jan 12, 2023
Primary completion
Nov 5, 2023
Completion
Feb 3, 2024
Last update
Oct 15, 2024

Study contacts

zeinab helmy, professor
study director · Cairo University

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Oct 2024. You cannot join it, but the record below documents what was studied.

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