Brief pre-departure medical Spanish training for a short-term medical mission to Peru: a prospective pre and post intervention study

Technical Summary: Brief Pre-Departure Medical Spanish Training for Short-Term Medical Missions to Peru

Problem Statement
Language discordance between healthcare providers and patients is a prevalent challenge in short-term global health and international medical mission trips. This barrier increases the risk of miscommunication regarding patient histories, diagnoses, and treatment plans, potentially leading to preventable medical errors and compromised patient safety. While professional interpreters are the gold standard for communication, formal medical language instruction is often logistically and temporally infeasible for short-term volunteers. Consequently, teams frequently rely on ad hoc interpretation or memorized phrases. It remains unclear whether brief, targeted pre-departure language training offers additional value in mission settings where professional interpreters are already present, specifically regarding volunteer confidence, preparedness, and the frequency of real-world phrase utilization.

Methodology
This prospective educational intervention study evaluated a targeted, one-hour "medical Spanish crash course" delivered prior to a one-week medical mission to a community outside Lima, Peru (March 8–13, 2026). The study was IRB-exempt (Texas A&M University, Study 2026-0001).

• Participants: The study cohort consisted of 31 eligible volunteers, including medical students, nursing students, attending physicians, and pre-medical students. The majority (75%) reported basic Spanish proficiency, while 50% had prior mission experience.
• Intervention: The curriculum was case-based and interactive, focusing on practical clinical communication rather than formal grammar. Key components included:
  • Greetings, introductions, and rapport-building.
  • History-taking frameworks (OPQRST, Review of Systems).
  • Common clinical scenarios (abdominal pain, UTI, musculoskeletal pain, pediatric sore throat).
  • Patient instructions and follow-up recommendations.
  • Distribution of a "cheat sheet" containing basic terminology and history-taking questions.
  • Optional faith-based conversation modules (separate from clinical care).
• Data Collection: Participants completed anonymous, voluntary surveys at three time points: pre-course, immediately post-course, and post-trip. To enable paired analysis, participants generated self-identifying codes.
• Outcomes: Primary outcomes included self-reported comfort, confidence, and preparedness (measured on a 1–5 Likert scale). Secondary outcomes included the frequency of phrase usage, phrase recognition, perceived communication effectiveness, and the incidence of communication-related near-miss safety events.
• Statistical Analysis: Paired and unpaired t-tests were utilized to compare means, with statistical significance defined as p ≤ 0.05.

Key Results
The study observed significant attrition across survey timepoints: 77.4% (24/31) completed the pre-course survey, 32.3% (10/31) completed the post-course survey, and 54.8% (17/31) completed the post-trip survey.

• Confidence and Comfort:
  • Post-Course (Paired, n=10): Self-rated comfort in taking a medical history increased significantly from 1.6 to 3.3 (p = 0.000257). Comfort in explaining a diagnosis rose from 1.3 to 2.5 (p = 0.0039).
  • Post-Trip (Paired, n=17): Comfort in taking a history increased from 1.44 to 2.88 (p = 0.0006). The perceived ability to understand Spanish-speaking patients improved from 1.2 to 3.0 (p = 0.0006).
• Real-World Application:
  • 78.6% of post-trip respondents reported using taught phrases "often" or "almost every encounter."
  • 64.3% reported that their ability to communicate with Spanish-speaking patients was "very" or "extremely" improved.
  • 64.3% found the provided cheat sheet "very" or "extremely" helpful.
• Safety:
  • 94.1% of respondents reported no communication-related near-miss events during the mission.

Significance and Claims
The authors conclude that a brief, pre-departure medical Spanish crash course is a feasible intervention that yields self-reported improvements in communication comfort, confidence, and preparedness among short-term mission participants. The study posits that such training facilitates the practical application of language skills in real-world settings, evidenced by high rates of phrase utilization and low rates of reported safety incidents.

Crucially, the paper frames this intervention as complementary to, rather than a replacement for, professional interpreters. The authors argue that basic language skills allow volunteers to build rapport, ask simple clarifying questions, and communicate more efficiently between interpreted exchanges. The study suggests that targeted, time-efficient language preparation can bridge the gap between baseline familiarity and communication readiness in global health environments.

Limitations
The authors explicitly acknowledge several limitations:

• Sample Size and Attrition: The small sample size and high attrition rate reduced statistical power and generalizability.
• Self-Reported Data: The reliance on self-reported confidence and perceived effectiveness rather than objective patient outcomes or clinical performance metrics.
• Time Constraints: The single one-hour session may have been insufficient for some participants, as noted in survey feedback requesting more sessions.
• Lack of Objective Measures: The study did not include objective communication assessments or patient evaluations of provider communication.

The authors state that larger studies utilizing objective and patient-facing outcome measures are necessary to validate these findings.