Concerns About Verbal Communication in the Operating Room: A Field Study.

OBJECTIVE: To assess verbal communication patterns which could contribute to poor performance among surgical team members in an operating room. BACKGROUND: There exist certain challenges in communication in health care settings. Poor communication can have negative effects on the performance of a surgical team and patient safety. A communication pattern may be associated with poor performance when the process of sending and receiving information is interrupted or the content of conversation is not useful. METHOD: This cross-sectional field study was conducted with 54 surgical teams working in two Iranian hospitals during 2015. Two observers recorded all verbal communications in an operating room. An in-depth assessment of various annotated transcripts by an expert panel was used to assess verbal communication patterns in the operating room. RESULTS: Verbal communication patterns which could contribute to poor performance were observed in 63% of the surgeries, categorized as communication failures (17 events), protests (23 events), and irrelevant conversations (164 events). The anesthesiologists and the circulating nurses had the most concerning communication patterns. The failure of devices and poor planning were important factors that contributed to concerning patterns. CONCLUSION: Concerning patterns of verbal communication are not rare in operating rooms. Analyzing the annotated transcripts of surgeries can conduce to identifying all these patterns, and their causes. Concerning communication patterns can be reduced in the operating room by providing interventions, properly planning for surgeries, and fixing defective devices. APPLICATION: The method used in this study can be followed to assess communication problems in operating rooms and to find solutions.

Accumulation of Plastic Strain at Notch Root of Steel Specimens Undergoing Asymmetric Fatigue Cycles: Analysis and Simulation.

The present study evaluates the ratcheting response at notch roots of 1045 steel specimens experiencing uniaxial asymmetric fatigue cycles. Local stress and strain components at the notch root were analytically evaluated through the use of Neuber, Glinka, and Hoffman-Seeger (H-S) rules coupled with the Ahmadzadeh-Varvani (A-V) kinematic hardening model. Backstress promotion through coupled kinematic hardening model with the Hoffman-Seeger, Neuber, and Glinka rules was studied. Relaxation in local stresses on the notched samples as hysteresis loops moved forward with plastic strain accumulation during asymmetric loading cycles was observed. Local ratcheting results were simulated through FE analysis, where the Chaboche model was employed as the materials hardening rule. A consistent response of the ratcheting values was evidenced as predicted, and simulated results were compared with the measured ratcheting data.

Translation and Psychometric Properties of the Persian Version of Oxford Non-technical Skills 2 System: Assessment of Surgical Teams' Non-technical Skills in Orthopedic Surgery Wards.

BACKGROUND: Non-technical skills are interpersonal and cognitive skills involved in safe performance and preventing adverse events during surgery. it is necessary to dominate the non-technical skills to ensure patient safety. This study has aimed to assess the validity and reliability of Oxford Non-technical skills 2 system (Oxford NOTECHS 2) in Iran and to evaluate surgical teams' non-technical skills in orthopedic surgery wards. METHODS: This cross-sectional study was conducted in Tehran, Iran during 2015. The level of evidence is III based on Canadian Task Force on the Periodic Health Examination. We followed the Beaton's guideline for Persian translation and cross-cultural adaptation of the checklist. In this study, 60 orthopedic surgical team members working in two selected public hospitals were selected by cluster random sampling method.Oxford NOTECHS 2 system which is consisted of four subscales including leadership and management, teamwork and collaboration, decision-makingand problem-solving, and situational awareness was used to collect the data. RESULTS: The overall mean score of non-technical skills was 69.52±6.64. The mean score for surgery, anesthesia, and nursing sub-teams were 24.98±3.71, 21.12±4.29, and 23.42±3.60, respectively. The teams' scores in total, leadership and management, teamwork and collaboration, problem solving and decision making, and situational awareness at the standard level were 74.70%, 76.95%, 73.75%, 66.87%, and 74.70% of maximum score, respectively. CONCLUSION: The validity and reliability of the Persian version of Oxford NOTECHS 2 scale in Iran was confirmed. The results of this study showed that surgical teams' non-technical skills were at a moderate level in orthopedic surgery wards. The minimum score of the surgical teams' non-technical skills belonged to anesthesia and maximum to surgery sub-team. Using the training programs and setup workshop is recommended to improve the surgical teams' non-technical skills, especially surgery-nursing sub-team.

Detection of hepatitis B virus variants in HBV monoinfected and HBV/HIV coinfected Iranian patients under lamivudine treatment.

Chronic hepatitis B affects nearly 10% of HIV-infected patients. Hepatitis B virus (HBV) infection is a dynamic disease and coinfection with HIV impacts directly on the outcome of HBV infection, considerably complicating its natural history, diagnosis, and management. The aim of this study was to compare two cohorts of HBV monoinfected and HBV/HIV coinfected Iranian patients undergoing long-term lamivudine therapy from the clinical and virological aspects, as well as the frequency of detected mutations in HBV genome. To this end, HBV Pol/S regions from 72 patients were PCR-amplified and directly sequenced. Phylogenetic analysis indicated a 40-times higher risk of coinfection with ayw3 subtype of HBV genotype D rather than ayw2 subtype [P<0.001, odd: 40.66, CI: 95 % (4.69-352.23)]. While no resistance mutation was detected in HBV/HIV coinfected cohort, LAM-resistance mutations (rtM204I/V in YMDD and rtL180M in FLLA polymerase motifs) were identified in 30% (9 out of 30) and 16.66% (5 out of 30) of HBV monoinfected patients (P<0.05). Moreover, several mutations (sP105A, sI110S/L, sS136Y and sP127T/L) with significant differences in the frequency were identified in the S region of both cohorts. Finally, this study found strong correlation between the type of infection (mono or coinfection) and characteristics like patient gender, ALT levels, HBV-DNA levels and HBV subtypes. These results pointed to the importance of determination of HBV variants in the management of patients and suggested that in contrary to HBV monoinfections, LAM may be still an appropriate drug for the treatment of HBV in HBV/HIV coinfected patients; however, further studies to clarify the role of HIV in HBV LAM-resistance mutations are required.