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CTRI Number  CTRI/2021/06/034012 [Registered on: 04/06/2021] Trial Registered Prospectively
Last Modified On: 04/06/2021
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Medical Device
Surgical/Anesthesia 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   Comparison of ease of frozen Ryles tube insertion versus normal Ryles tube insertion in anesthetized patients. 
Scientific Title of Study   Comparison of ease of nasogastric intubation using a frozen nasogastric tube with nasogastric tube at room temperature in anesthetized, intubated adult patients. A prospective, randomized, open label, parallel assignment study. 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  DrMadhuri Dommaraju 
Designation  MBBS , Post graduation (MD) Anesthesiology and critical care 
Affiliation  Sri Venkateshwara Institute of Medical Sciences 
Address  Room no: 85, PG resident hostel, Department of Anaesthesiology and critical care,SVIMS, Alipiri, Tirupati, Chittoor, Andhra pradesh ,517501, India
Room no:85PG resident hostel , SVIMS, Tirupati, Chittoor, Andhra Pradesh, 517501, INDIA
Chittoor
ANDHRA PRADESH
517501
India 
Phone  9652295762  
Fax    
Email  madhuridommaraju8@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Aloka Samantaray 
Designation  Professor and Head of Department of Anesthesiology and critical care , SVIMS 
Affiliation  Sri Venkateswara Institute of Medical Sciences 
Address  Department of Anaesthesiology and Critical care, SVIMS quaters, SVIMS campus, SVIMS, near valmiki circle, Alipiri, Tirupati Chittoor, Andhra Pradesh, 517501, India

Chittoor
ANDHRA PRADESH
517501
India 
Phone  9493547653  
Fax    
Email  aloksvims@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Aloka Samantaray 
Designation  Professor and Head of Department of Anesthesiology and critical care , SVIMS 
Affiliation  Sri Venkateswara Institute of Medical Sciences 
Address  SVIMS quaters, SVIMS campus, SVIMS, near valmiki circle, Alipiri, Tirupati Chittoor, Andhra Pradesh, 517501, India

Chittoor
ANDHRA PRADESH
517501
India 
Phone  9493547653  
Fax    
Email  aloksvims@gmail.com  
 
Source of Monetary or Material Support  
Not applicable 
 
Primary Sponsor  
Name  None 
Address  Not applicable 
Type of Sponsor  Other [Nil] 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Madhuri dommaraju  Sri Venkateswara Institute of Medical Sciences , Tirupati  Department of Anaesthesiology , near valmiki circle, Alipiri Road Tirupati , Chittoor, Andhra Pradesh, 517501
Chittoor
ANDHRA PRADESH 
9652295762

madhuridommaraju8@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  , (1) ICD-10 Condition: O||Medical and Surgical,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Frozen nasogastric tube  Compare the ease of of insertion of frozen nasogastric tube and nasogastric tube at room temperature by doctors in training in intubated anesthetized adult patients. Also compare duration of insertion and complications like kinking ,knotting ,bleeding 
Comparator Agent  Normal nasogastric tube  frozen nasogastric tube or room temperature nasogastric tube will be inserted in intubated anesthetized patients to see overall success rate . 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  80.00 Year(s)
Gender  Both 
Details  ASA grade I-IV aged above 18yrs
patient scheduled to undergo elective surgery under general anesthesia with endotracheal intubation and need a nasogastric tube as a usual course of management.
a patient whose trachea is intubated under chemical paralysis, needing a nasogastric tube placement 
 
ExclusionCriteria 
Details  presence of nasal mass, nasal stenosis
history of corrosive poisoning
uncontrolled bleeding diathesis
recent radiotherapy to head and neck
presence of cleft lip or palate
significant deviated nasal septum
esophageal stricture and varices
base of skull fracture
patient who will not require x-ray in their usual course of management
pregnant lactating mother
patients not willing to participate in the study 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Open Label 
Primary Outcome  
Outcome  TimePoints 
to determine first attempt success rate of nasogastric intubation with positive whoosh test (auscultation while injecting air)
to determine the overall success rate of nasogastric intubation by radiological confirmation with plain xray (tube tip below T12) time24hrs 
At baseline and within 24hours 
 
Secondary Outcome  
Outcome  TimePoints 
Duration of insertion of tube with selected technique and complications if any  At baseline 
 
Target Sample Size   Total Sample Size="200"
Sample Size from India="200" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   N/A 
Date of First Enrollment (India)   05/06/2021 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details   Nil 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary  

Ever since its first description by Hunter in 1790, the Nasogastric tube(NGT) has become one of the most commonly used medical devices in routine practice. Insertion of NGT is an essential procedure for several abdominal and thoracic surgeries and is often performed by anesthesiologist in the operation room. Nasogastric intubation continues to present a challenge for those patients who are anesthetized and trachea intubated.

Conventional insertion of NGT has a high failure rate of almost 55% in the first pass. This is due to the multiple apertures present in the distal portion making it susceptible to kinking, coiling and knotting.The rugged wall due to apertures may cause mucosal tear leading to bleeding. Thus many methods of insertion has come into existence, but none is earmarked as the best. Freezing the NGT have been reported to increase its rigidity, thereby facilitating the insertion with ease.

The available literature suggesting a higher success rate for frozen NGT for successful placement of nasogastric tube did not convey adequately about the experience or skill level of the researcher attempting nasogastric intubation which we believe may greatly influence the first attempt success rate independent of the technique selected. Moreover, many researchers defined a successful nasogastric intubation as a positive whoosh test which may not be true.

The present study is designed to determine the success rate of nasogastric intubation with a frozen nasogastric tube by trainee resident and compare the same with the conventional insertion of nasogastric tube at room temperature.


 
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