Browsing by Author "Campos, Mauricio"
Now showing 1 - 8 of 8
Results Per Page
Sort Options
- ItemB-ePain: A Wearable Interface to Self-Report Pain and Emotions(2016) Rodríguez Ramírez, Iyubanit; Fuentes Cimma, Javiera Carolina; Herskovic, Valeria; Campos, Mauricio
- ItemChronic Liver Failure and Concomitant Distant Infections Are Associated With High Rates of Neurological Involvement in Pyogenic Spinal Infections(LIPPINCOTT WILLIAMS & WILKINS, 2009) Urrutia, Julio; Bono, Christopher M.; Mery, Pablo; Rojas, Claudio; Gana, Natalia; Campos, MauricioStudy Design. A retrospective study of a consecutive series of all patients with pyogenic spinal infections treated at a single institution over a 10-year period.
- ItemDisruptive behavior in the operating room: Systemic over individual determinants(ELSEVIER SCI LTD, 2022) Campos, Mauricio; Lira, Maria Jesus; Mery, Pamela; Calderon, Maribel; Sepulveda, Macarena; Pimentel, Fernando; Zuniga, DenisseBackground: The operating room (OR) environment presents specific conditions that put stress on work dynamics. Disruptive behavior among members of the health team is recognized to affect work dynamics and patient outcomes. As surgeons have been syndicated as frequent disruptors, the objective was to explore their perceptions about OR working dynamics and the occurrence of disruptive behavior. Study design: Qualitative exploratory study, based on semi-structured individual interviews. Twenty participants were sampled until data saturation. For better context, we also included in the sample anesthesiologists, nurses, and technicians, among others. Using grounded theory framework, investigators extracted data from verbatim transcriptions with qualitative software. Results: Problems of infrastructure, interpersonal relationships, and organizational failures had most density of citations and trigger the most disruptive behavior narrated events. Although personality traits were noted to promote some disruptive behavior occurrence, systemic determinants were critical, such as poorly defined working roles and a plethora of personal ways to cope or avoid disruptive behavior. Conclusion: Our results suggest that disruptive behavior events are not just a matter of a surgeon's personality traits but also substantiated by systemic normalization, informal communication strategies, and undefined roles, making teams less resilient to unexpected events.
- ItemEffects of Long-Term Nitric Oxide Synthesis Inhibition on Plasma Volume Expansion and Fetal Growth in the Pregnant Rat(1995) Salas, Sofía P.; Altermatt, Fernando; Campos, Mauricio; Giacaman, Andrea; Rosso R., Pedro PabloWe conducted the present study to investigate whether the vasodilator nitric oxide plays a role in plasma volume homeostasis during pregnancy. Pregnant Sprague-Dawley rats were randomly assigned to a control group (n = 18) or to groups receiving 0.69 mmol/L (n = 11) or 1.7 mmol/L (n = 14) N-omega-nitro-L-arginine, a competitive inhibitor of nitric oxide synthetase, from gestational days 7 through 21. On day 20 systolic pressure was measured. On day 21 blood samples were taken for plasma volume, hematocrit, and hormonal measurements. Fetal and placental weights also were determined. Systolic pressure was significantly higher in experimental rats (101+/-6 and 115+/-6 mm Hg in the 0.69 and 1.7 mmol/L groups, respectively) than in controls (79.7+/-7.5 mm Hg), and plasma volume was lower (18.4+/-1.1 and 17.1+/-0.5 mL) than in controls (21.5+/-0.8 mL). Both experimental groups had increased hematocrit levels. Plasma renin activity was significantly lower in the experimental groups (11.5+/-3 and 7.2+/-1.5 ng angiotensin I/mL per hour) than in controls (21.9+/-2.7 ng angiotensin I/mL per hour); however, no changes were observed in aldosterone levels. Experimental groups had lower fetal weight (4.6+/-0.1 and 5.1+/-0.1 g) than controls (5.5+/-0.1 g). In addition, fetal hindlimb hypoplasia was observed in the experimental groups. In conclusion, the present data indicate that long-term N-omega-nitro-L-arginine administration to pregnant rats leads to increased blood pressure, reduced plasma volume expansion, lower plasma renin activity, and fetal growth retardation. These results suggest that nitric oxide may play an important role in maternal systemic vasodilatation and indirectly in plasma volume homeostasis and fetal growth.
- ItemMonitoring Chronic Pain: Comparing Wearable and Mobile Interfaces(2016) Rodríguez, Iyubanit; Fuentes Toro, Carolina; Herskovic, Valeria; Campos, Mauricio
- ItemPost-operative complications affect survival in surgically treated metastatic spinal cord compression(2024) González-Kusjanovic, Nicolás; Delgado Ochoa, Byron; Vidal, Catalina; Campos, MauricioPurpose: The prevalence of metastatic epidural spinal cord compression (MESCC) is increasing globally due to advancements in cancer diagnosis and treatment. Whilst surgery can benefit specific patients, the complication rate can reach up to 34%, with limited reporting on their impact in the literature. This study aims to analyse the influence of major complications on the survival of surgically treated MESCC patients.Methods: Consecutive MESCC patients undergoing surgery and meeting inclusion criteria were selected. Survival duration from decompressive surgery to death was recorded. Perioperative factors influencing survival were documented and analysed. Kaplan–Meier survival analysis at one year compared these factors. Univariate and multivariate Cox proportional hazard regression analyses were performed. Additionally, univariate analysis compared complicated and uncomplicated groups.Results: Seventy-five patients were analysed. Median survival for this cohort was 229 days (95% CI 174–365). Surgical complications, low patient performance, and rapid primary tumour growth were significant perioperative variables for survival in multivariate analyses (p < 0.001, p = 0.003, and p = 0.02, respectively) with a hazard ratio of 3.2, 3.6, and 2.1, respectively. Univariate analysis showed no variables associated with complication occurrence.Conclusion: In this cohort, major surgical complications, patient performance, and primary tumour growth rate were found to be independent factors affecting one year survival. Thus, prioritizing complication prevention and appropriate patient selection is crucial for optimizing survival in this population.
- ItemStraightenUp plus : Monitoring of Posture during Daily Activities for Older Persons Using Wearable Sensors(2018) Cajamarca, Gabriela; Rodríguez Ramírez, Iyubanit; Herskovic, Valeria; Campos, Mauricio; Riofrio, Juan Carlos
- ItemUnanticipated Revision Surgery in Adolescent Idiopathic Scoliosis(LIPPINCOTT WILLIAMS & WILKINS, 2012) Campos, Mauricio; Dolan, Lori; Weinstein, StuartStudy Design. Retrospective case series.