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Early Oral Hydration in Relieving Postoperative Thirst

Effectiveness of Early Oral Hydration in Relieving Postoperative Thirst in Patients Undergoing Urological Endoscopic Procedures: A Randomized Controlled Trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07563530
Enrollment
200
Registered
2026-05-04
Start date
2026-04-18
Completion date
2026-10-18
Last updated
2026-05-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patient Satisfaction, Thirst; Due to Deprivation of Water

Keywords

Postoperative, Thirst, Oral Hydration, Satisfaction

Brief summary

This study aims to evaluate whether allowing early oral hydration on demand effectively relieves postoperative thirst and enhances patient satisfaction in individuals undergoing urological endoscopic procedures

Detailed description

Postoperative thirst is a frequent but often overlooked discomfort experienced by patients after surgery, particularly following urological endoscopic procedures.Despite the common restriction on carly oral intake due to concerns about nausea and aspiration, delaying hydration prolongs patient suffering and reduces satisfaction during recovery. This study aims to investigate whether allowing carly, on-demand oral hydration in the postanesthesia care unit (PACU) can effectively relieve postoperative thirst without increasing adverse effects, thereby potentially improving patient comfort and outcomes.

Interventions

DIETARY_SUPPLEMENTEarly oral hydration

"Early oral hydration" refers to the administration of small sips of water (maximum 10 mL initially) within 15-30 minutes of arrival in the PACU, once the patient is fully conscious, stable, and meets safety criteria. Initially, patients will be provided a maximum of 10 mL of water using a straw. After this initial intake, they will be allowed to drink water according to their demand, provided their condition remains stable. To minimize the risk of adverse events such as regurgitation and aspiration, the total amount of water intake will be restricted to 0.5 mL/kg.

OTHERNo early oral hydration (As per Standard PACU Protocol)

Patients in the control group will follow the standard PACU protocol, which will delay oral hydration for 2-3 hours after the end of anesthesia. During this period, patients will be monitored closely for thirst and other postoperative symptoms.

Sponsors

Sindh Institute of Urology and Transplantation
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Outcomes Assessor)

Masking description

The outcome assessor will collect the data from the patients enrolled in this study by the primary investigator in the postanesthesia care unit once the patients are received in the postoperative ward. This data will contain demographics as well as questionnaire-based satisfaction grading and the possible adverse effects.

Intervention model description

All eligible patients meeting the inclusion criteria will be identified preoperatively by the researcher. Written informed consent will be obtained from each participant after explaining the study purpose, procedures, possible risks, and benefits in their preferred language. Upon arrival in the PACU, patients will be randomized into Group A (early oral hydration) or Group B (control) is using sealed opaque envelopes.

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

1. Male and female patients aged 18-65 years. 2. Scheduled for elective urological endoscopic procedures under general anesthesia. 3. Day-care endoscopic procedures. 4. ASA classification I-III.

Exclusion criteria

1. Known gastrointestinal disorders contraindicating early oral hydration (e.g., peptic ulcer disease, hiatal hernia, irritable bowel syndrome, esophagitis, or prior gastrointestinal surgery). 2. Inability to express thirst or communicate (e.g., language barrier, altered consciousness). 3. Requirement for nasogastric suction. 4. History of facial, oropharyngeal, or laryngeal surgery. 5. Swallowing dysfunction or delayed gastric emptying (e.g., gastroparesis). 6. Incomplete reversal of muscle relaxant at PACU admission (no adequate spontaneous breathing or protective airway reflexes).

Design outcomes

Primary

MeasureTime frameDescription
Thirst intensity upon PACU arrivalUp to 2 hours during immediate post-operative periodPatients will be asked Did you experience thirst upon arrival in the PACU? * Yes * No If yes, rate your thirst intensity upon PACU arrival using the Visual Analogue Scale (VAS) on PACU entry. 0 = No thirst, 10 = Worst imaginable thirst \[0---1---2---3---4---5---6---7---8---9---10\]
Thirst intensity at PACU dischargeUp to 2 hours during immediate post-operative periodPatients will be asked Did you experience thirst at PACU discharge? * Yes * No If yes, rate your thirst intensity at PACU discharge using the VAS (0-10). 0 = No thirst, 10 = Worst imaginable thirst \[0---1---2---3---4---5---6---7---8---9---10\]
Patient comfortUp to 2 hours during immediate post-operative periodRate your comfort level during the PACU stay using the VAS (0-10) (0 = Uncomfortable, 10 = Very comfortable) \[0---1---2---3---4---5---6---7---8---9---10\]
Patient satisfaction with the hydration timing.Up to 2 hours during immediate post-operative periodHow satisfied are you with the hydration timing? (5-point Likert Scale): * Very Dissatisfied * Dissatisfied * Neutral * Satisfied * Very Satisfied
Patient satisfaction with the hydration procedure.Up to 2 hours during immediate post-operative periodHow satisfied are you with the hydration process overall? (5-point Likert Scale): * Very Dissatisfied * Dissatisfied * Neutral * Satisfied * Very Satisfied
Total oral water intake (mL) during PACU stay.Up to 2 hours iduring immediate post-operative periodThe total amount of water intake will be restricted to 0.5 mL/kg. The water will be provided in a graduated cup, and the total water intake will be calculated as follows: Total Water Intake (mL) = Volume of water in the cup upon PACU admission - Volume of water remaining in the cup upon PACU discharge.

Secondary

MeasureTime frameDescription
Adverse EventsUp to 2 hours during immediate post-operative periodDo you experience any of the following adverse events after drinking water? (Check all that apply): * Bucking * Aspiration * Vomiting * None
Medical intervention given for any adverse eventUp to 2 hours during immediate post-operative periodIs medical intervention given for any adverse event? * Yes (specify: \_\_\_\_\_\_\_\_\_\_\_\_\_) * No

Countries

Pakistan

Contacts

CONTACTMuhammad M Abbas, FCPS
smabbas69@hotmail.com02199215718
PRINCIPAL_INVESTIGATORMuhammad M Abbas, FCPS

Sindh Institute of Urology and Transplantation

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 5, 2026