This project bridges simulation-based training (mannequins and human cadavers) with narrative medicine by contextualizing technical skills through real patient events data archived in the Patient Journey record (PaJR) / PaJR Health Database
(publications.pajrhealth.org).
Project Plan:
Harmonizing Simulation, Cadaveric Training, and Patient journey record Narratives (PaJR) in Undergraduate Medical Internship
Project Title: Bridging the Kinetic-Clinical Divide: A Hybrid Mannequin-Cadaveric Training Model for Core Medical Procedures Contextualized via the PaJR Database.
Target Group: Compulsory Rotating Medical Interns (CRMIs) / MBBS Interns
Departmental Alignment: Department of General Medicine in collaboration with the Department of Anatomy.
I. Keywords
Competency-Based Medical Education (CBME)
Compulsory Rotating Medical Internship (CRMI)
Directly Observed Procedural Skills (DOPS)
Thiel-Embalmed/Fresh-Frozen Cadavers
High-Fidelity Simulation
Narrative Medicine & Patient Safety
Patient journey record (PaJR)
Procedural Complications
II. Introduction
The transition from a final-year MBBS student ("shows how" on Miller’s Pyramid) to an independent, competent clinical practitioner ("does/performs") during the Compulsory Rotating Medical Internship (CRMI) is a critical inflection point in medical education. Under the National Medical Commission's (NMC) Competency-Based Medical Education (CBME) curriculum, interns posted in the Department of General Medicine are legally and professionally mandated to master a battery of routine, special, and emergency procedural skills. These range from basic intravenous (I.V.) cannulation and Ryle’s tube insertion to highly invasive, high-acuity interventions such as Lumbar Puncture, Pleural Aspiration, and Abdominal Paracentesis.
Traditionally, these procedural skills are learned using an opportunistic “see one, do one, teach one” apprenticeship model directly on live patients in medical wards. This framework introduces significant patient safety hazards, patient discomfort, and inconsistent training opportunities due to varying ward volumes. While synthetic mannequins offer a safe environment for primary mechanical orientation (e.g., establishing the conceptual steps of a procedure), they severely lack anatomical fidelity, real-world tissue resistance, haptic feedback, and structural variability (e.g., obese or cachectic variations).
To bridge this kinetic gap, this project establishes a hybrid simulation model: using synthetic task trainers for fundamental step-by-step algorithms, followed by human cadaveric tissue training (utilizing Thiel-soft embalmed or fresh-frozen cadavers) to master real-world tissue handling, structural variations, and tactile boundaries.
Crucially, technical skill acquisition without clinical empathy and safety awareness remains incomplete. To contextualize these manual skills, this protocol incorporates the analysis of real-world patient safety incidents, errors, near-misses, and diagnostic pitfalls sourced from the Patient journey record (PaJR) database (https://publications.
By intersecting high-fidelity physical training with reflective narrative learning from PaJR, interns do not merely learn how to perform an invasive procedure, but deeply understand why variations occur, how errors manifest, and how to safeguard human lives under pressure in the acute ward environment.
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III. Methods
1. Study Design & Setting
This is a mixed-methods, prospective, interventional, cohort study conducted across the Department of General Medicine, the Anatomy Dissection/Embalming Suite, and the Medical Simulation Center of a tertiary care teaching hospital governed under NMC guidelines.
2. Participants
A full cohort of MBBS interns ($N \approx 30-50$, depending on institutional batch size) entering their mandatory 1- or 2-month posting in General Medicine will participate.
3. Intervention Workflow (The Three-Tier Framework)
Tier 1: Synthetic Mannequin Training (Primary Orientation)
Objective: Establish cognitive steps, instrument familiarity, sterility protocol, and universal precautions.
Modality: Task trainers for I.V. access, Lumbar Puncture, Pleural fluid aspiration, and Nasogastric (Ryle's) tube placement.
Assessment: Checklist-based pass/fail before moving to Tier 2.
Tier 2: Advanced Cadaveric Skill Lab (Tactile & Spatial Competence)
Objective: Master physical haptic feedback, deep tissue resistance (pop/give of the ligamentum flavum, pleural boundaries), and anatomical orientation.
Modality: Utilizing Fresh-Frozen or Thiel-Embalmed (soft-preserved) human cadavers in coordination with the Anatomy Department to maintain structural pliability.
Procedures Covered: * Special Procedures: Lumbar Puncture, Pleural Aspiration, Abdominal Paracentesis, and Venous Cut Down.
Emergency Procedures: External Cardiac Massage (CPR depth/recoil tracking) and airway management.
Tier 3: PaJR Case-Based Contextualization (Safety & Narrative Integration)
Objective: Review real clinical failures, systemic issues, and diagnostic errors related to the exact procedures trained.
Modality: Moderated small-group case discussions utilizing extracted, anonymized case records from the PaJR Health system. Interns map out what went wrong in a PaJR incident report (e.g., a case of unrecognized pneumothorax post-pleural tap or a delayed diagnosis of meningitis due to a dry/failed lumbar puncture) and correlate it with the anatomy they just encountered in Tier 2.
[Mannequin Orientation (Tier 1)] ➔ [Cadaveric Haptic Practice (Tier 2)] ➔ [PaJR Incident Contextualization (Tier 3)] ➔ [Supervised Live Ward Performance & DOPS]
4. Outcome Measures & Data Collection
Quantitative Metrics: Logbook documentation capturing the mandatory cases performed (as specified in the Medicine logbook, e.g., 4 Pleural Aspirations, 4 Abdominal Paracenteses). Performance proficiency will be certified via Directly Observed Procedural Skills (DOPS) using a standard Likert scale (0 = Poor to 5 = Excellent).
Qualitative Metrics: Post-intervention focus group discussions (FGDs) with interns regarding self-efficacy, spatial confidence, emotional preparation regarding patient safety via PaJR, and thematic feedback on the hybrid training model.
IV. Thematic Analysis Plan & Matrix
Qualitative data generated from intern feedback transcripts and PaJR reflective essays will be subjected to inductive thematic analysis following Braun and Clarke’s framework. The core themes mapped out to assess the efficacy of this project are:
Thematic Analysis Matrix
| Core Theme | Sub-Themes / Codes | Analytical Mapping to Project Objectives |
| 1. Haptic Realism and Spatial Confidence | • "Tissue give" & haptic feedback • Structural/Anatomical anomalies • Needle-track resistance | Validates the transition from synthetic plastic trainers (mannequins) to organic biological substrates (cadavers) for tactile readiness. |
| 2. Cognitive Safe Harbor | • Freedom to make errors • Mitigation of live-patient anxiety • Pressure-free calibration | Measures the reduction of psychological distress and performance anxiety in interns before they operate on live ward admissions. |
| 3. Clinical Vignette Contextualization via PaJR | • Root-cause awareness of complications • Deciphering real near-misses • Connecting anatomy to medical errors | Assesses the impact of the PaJR Health database cases on cultivating a proactive safety mindset, rather than just technical mechanical skill. |
| 4. Structural & Logistical Bottlenecks | • Preservation quality (Formalin vs Thiel) • Time constraints within CRMI schedules • Resource availability of task trainers | Pinpoints areas for institutional improvement, optimization of anatomy infrastructure, and logbook balancing. |
V. Anticipated Results
1. Quantitative Competency Shift
It is hypothesized that interns passing through the hybrid Mannequin $\rightarrow$ Cadaver $\rightarrow$ PaJR pipeline will demonstrate significantly higher initial DOPS scores (Mean $\ge 4.0$ / "Above Average") upon their first live-patient supervised procedure in the medical wards compared to historical cohorts trained solely on live patients or basic plastic mannequins.
2. Logbook Optimization
The project expects to show a 100% compliance rate in filling out the mandatory training logbook counts for difficult special procedures (e.g., the 4 recommended Pleural Aspirations and 2 Lumbar Punctures) without compromising live patient comfort, as preliminary attempts are mastered in the simulation environment.
Intern Performance Metric Goal: [Historical Model] ---------> Average Ward Entry DOPS: 2.1 / 5.0 (Below Average) [Hybrid PaJR Model] --------> Average Ward Entry DOPS: 4.2 / 5.0 (Above Average)
3. Patient Safety Indicator Impact
An institutional tracking mechanism is anticipated to show a downward trend in minor/major clinical complications (e.g., post-tap hematomas, dry taps, multiple needle re-insertions, iatrogenic pneumothorax) within the General Medicine wards over the course of the internship cycle.
VI. Discussion
Integrating soft-embalmed or fresh-frozen human cadavers alongside standard mannequins redefines the learning curve for undergraduate medical interns. While synthetic task trainers are excellent for understanding sterile fields and linear workflows, they do not replicate the authentic physical variations of human flesh—such as the tough resistance of skin, subcutaneous fat layers, fascial planes, and structural changes caused by chronic diseases. Cadaveric practice restores this spatial realism, preparing the intern's hands for physical obstacles before they ever touch a live patient.
The true innovation of this project plan lies in intersecting technical physical simulation with narrative patient safety contexts using the PaJR database.
Teaching a skill mechanically creates a technician; contextualizing that skill with a verified report of a clinical error, diagnostic failure, or systemic breakdown from the PaJR Health Journal builds a safe, reflective, and empathetic physician. For instance, an intern who reviews a PaJR case narrative detailing an accidental liver injury during an abdominal tap, and subsequently traces that specific anatomical vulnerability on a cadaveric torso, is vastly more likely to maintain defensive clinical practices, check margins carefully, and perform accurate ultrasound tracking in real life.
Limitations and Mitigation Strategies
Cadaver Availability & Ethical Scarcity: Procurement of high-quality fresh or Thiel-embalmed tissues is resource-intensive. Mitigation: Group-based prosection training where one cadaver is systematically used for multiple regional skills (e.g., internal jugular access, chest tube insertion, abdominal paracentesis, and femoral access in sequence).
Time Constraints: The CRMI curriculum is demanding, leaving limited hours for extensive workshops. Mitigation: Implementing a flipped-classroom model where cognitive checklists and PaJR case narratives are read asynchronously online via mobile platforms prior to entering the physical skills lab.
Conclusion & Future Directions
This hybrid training paradigm addresses the core mandate of the NMC’s CBME philosophy: safeguarding patient health while maximizing the actual performance capabilities of young medical graduates. Future rollouts can expand this cross-departmental model into Emergency Medicine and Obstetrics/Gynecology postings, setting a new national benchmark for clinical safety in internship training programs across India.
- General Medicine: Venipuncture, intravenous (IV) cannulation, arterial puncture, nasogastric intubation, urinary catheterization, lumbar puncture, and pleural/ascitic fluid tapping.
- Surgery: Suturing minor wounds, surgical knot tying, incision and drainage of abscesses, applying splints/casts, and assisting in minor/major operations.
- Emergency & Critical Care: Cardiopulmonary Resuscitation (CPR), airway management (bag-mask ventilation, basic intubation), administering emergency drugs, and triage.
- OBG & Pediatrics: Assisting in normal vaginal deliveries, newborn resuscitation, and administering vaccinations.
- Directly Observed Procedural Skills (DOPS): This Workplace-Based Assessment (WPBA) framework is used to evaluate an intern's actual clinical practice. Faculty members observe, provide feedback, and grade the intern’s performance.
- Logbook Requirements: Every intern must maintain a mandatory logbook or portfolio tracking the number of times a skill is demonstrated or performed. Certain critical procedures require a specified number of successful, certified attempts (typically 1 to 5) before course completion. [4, 7]
- responses
- Tactile and Spatial Understanding: Unlike 2D textbooks or digital models, cadavers provide a 3-dimensional grasp of spatial relationships and structural variations.
- Real-World Tissue Handling: They allow students to experience the exact texture, fragility, and resistance of human tissue.
- Lowering Clinical Risk: Practicing invasive procedures on a cadaver first minimizes the risk of complications or medical errors when trainees advance to live clinical environments. [1, 5]
- Needle-Guided Procedures: Central and peripheral vein cannulation, ultrasound-guided vascular access, and arterial puncture.
- Pleural & Peritoneal Interventions: Thoracentesis, chest-tube insertion, pleural biopsy, and paracentesis.
- Biopsies: Bone marrow aspiration/biopsy and percutaneous liver biopsy.
- Joint Aspirations: Arthrocentesis for diagnostic fluid sampling and therapeutic injections. [2, 9, 10]
- Fresh-Frozen Cadavers: Highly favored for procedural simulations as they most closely mimic the elasticity and pliability of living tissue.
- Soft-Embalmed (e.g., Thiel-embalmed) Cadavers: Provide remarkably lifelike tissue flexibility and retain joint mobility, making them ideal for complex musculoskeletal and ultrasound-guided procedures.
- Formalin-Fixed Cadavers: The traditional standard for gross anatomical education, offering durable, long-term preservation for in-depth surgical exploration and prosection. [6]
