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RecruitingNCT07297017Updated May 14, 2026

Naples Prognostic Score for Predicting Postoperative Delirium

An observational study in Postoperative Delirium, sponsored by South Valley University. Recruiting at 1 site in Egypt. Open to participants aged 60 Years and older. Per ClinicalTrials.gov, last updated 2026-05-14.

Sponsored by South Valley University · Observational

From the registry’s dates

  • Started Jan 2026; still recruiting 10 months later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
168
Ages
60 Years and older
Sex
All
01

Study summary

Naples Prognostic Score (NPS) originally developed to predict outcomes in inflammatory and malignant conditions; we asked if it can effectively predict postoperative delirium (POD) in elderly patients undergoing hip surgery? NPS integrate markers such as albumin, neutrophil-to-lymphocyte ratio, and lymphocyte-to-monocyte ratio-all of which have been linked to adverse postoperative outcomes including POD.

Read the detailed description

Delirium is a state of acute cerebral dysfunction that manifests as fluctuations in mental status. It is a common problem among all patients admitted to the hospital and has the potential to significantly alter patients' clinical outcomes. There are many risk factors that predispose patients to delirium including age, frailty, and preexisting comorbid conditions, as well as risk factors unique to the perioperative period, such as severity of concurrent illness, type of operation, and ICU admission after surgery (3). Postoperative delirium (POD) should be of paramount importance to providers, as multiple studies in perioperative patients have found significant associations between development of delirium within the first few days of surgery and increased length of stay, higher cost of care, increased hospital readmission rates, higher likelihood of discharge to institution, prolonged cognitive impairment and dementia, and increased mortality (4) (5) . POD occurs commonly but underdiagnosed, and is associated with worse patient outcomes.

Postoperative delirium known as a common and serious complication in elderly surgical patients, particularly after orthopedic surgeries, incidences ranging typically from 5%% up to 48%, with some reports citing rates as high as 70-80% in high-risk geriatric populations (12) . Recent literature showed a strong association between levels of nutritional parameters such as serum albumin (Alb) and lipids and an increased risk of POD (7).However, it is important to note that the prognostic power of a single marker of inflammation or nutritional index might be influenced by variations in physical conditions and the surrounding environment (8). Accordingly, the concept of using a compound indicator of nutrition state and inflammation, known as NPS, presented a novel idea for predicting POD Over the last few years, the NPS was widely used to evaluate the prognosis of cancer patients. Miyamoto et al. pointed out that the NPS was a valuable predictor for postoperative harmful outcomes in patients who underwent colorectal cancer ( CRC) and gastric cancer (GC) surgeries (9).

Because NPS combine inflammatory and nutritional indices, they may provide a more robust and easily measurable means of identifying patients at risk for POD. A preoperative tool based on these scores could enable early intervention, tailored perioperative care, and improved outcomes in this vulnerable population

02

Conditions studied

  • Postoperative Delirium

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Keywords

  • POD
  • elderly
  • geriatric
  • NPS
03

In context

Emergence Delirium

751 studies on the registry are indexed under Emergence Delirium; 262 are open to participants now.

This study's planned enrollment of 168 is close to the median of 162 across 279 observational studies indexed under Emergence Delirium.

Browse Emergence Delirium studies →

Lead sponsor

South Valley University is the lead sponsor of 153 studies on the registry; 46 are open to participants now.

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

04

Who can participate

Ages eligible
60 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

elderly patients undergoing Hip fracture surgery

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

  • The elderly age≥60 years
  • (ASA) classification II∼IV
  • Patients undergoing hip fracture surgery
  • Patients who had a complete blood sample were taken preoperatively

Exclusion criteria

Exclusion Criteria:

  • Patient refused to participate and consent
  • Patients with a history of mild cognitive impairment (MCI), dementia, and delirium
  • Ptients with known preoperative infections (pulmonary infection, urinary infection, and sepsis).
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ASA physical status

The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
168 participants (estimated)
Patient registry
No

Groups and cohorts

  • hip group

    patients undergoing hip surgeries will be screened for delirium in the Post-Anesthesia Care Unit (PACU) on arrival, and once daily for the first 3 postoperative days (postoperative days 1 to 3), and on postoperative days 5 and 7.

06

What researchers measure

Primary outcomes

  1. Assessment of postoperative delirium

    Assessment of postoperative deliurim will be done once daily by using an established screening instrument (The Confusion Assessment Method (CAM)). A positive CAM requires both (1) Acute onset \& fluctuating course AND (2) Inattention, plus (3) Disorganized thinking OR (4) Altered level of consciousness.

    Time frame: on arrival to PACU, on postoperative day 1, 2, 3, 5, 7.

Secondary outcomes

  1. Length of hospital stay

    Determine the duration of hospital stay for geriatric hip fracture patients in our hospital.

    Time frame: Directly before patients' discharge from hospital

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 14, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT07297017
Responsible party
Mohamed Gaber Ahmed (lecturer in anesthesia, Intensive Care and Pain Management, South Valley University) — Principal investigator
First posted
Dec 22, 2025
Start date
Jan 10, 2026
Primary completion
Jun 2027 (estimated)
Completion
Dec 2027 (estimated)
Last update
May 14, 2026

Study contacts

Zeinab M Sayed, MD
Contact
zeinab5aton@gmail.com
+201009071365

Oversight

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

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