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Knowledge Repository

A complete, user-friendly database of healthcare design research references MoreLess about the Knowledge Repository

The Knowledge Repository is a complete, user-friendly database of healthcare design research references that continues to grow with the latest peer-reviewed publications. Start with our Knowledge Repository for all of your searches for articles and research citations on healthcare design topics. Access full texts through the source link, read key point summaries, or watch slidecasts. Expand your search and find project briefs, interviews, and other relevant resources by visiting our Insights & Solutions page.


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Displaying 61 - 80 of 470

Noise in cesarean deliveries: A comprehensive analysis of noise environments in the labor and delivery operating room and evaluation of a visual alarm noise abatement program

Author(s): Whitham, M. D., Casali, J. G., Smith, G. K., Allihien, A. L., Wright, B. W., Barter, S. M., Urban, A. R., Dudley, D. J., Fuller, R. R.
Added February 2023

Noise exposure and quality of life among nurses

Author(s): McCullagh, M. C., Xu, J., Dickson, V. V., Tan, A., Lusk, S. L.
Research shows that the effects of high-noise environments extend beyond hearing damage. Excessive noise levels can negatively impact cardiovascular health, mental health, sleep, and lead to tinnitus. Healthcare work environments are inherently noisy due to paging systems, telephones, monitor alarms, treatment equipment, and ice machines.
Key Point Summary
Added November 2022

Noise Levels in an Urban Hospital and Workers' Subjective Responses

Author(s): Bayo, M. V., Garcia, A. M., Armando, G.
Noise has become a major environmental problem as well as a public health concern, resulting in a wide range of negative consequences. Despite healthcare facilities’ attempts to foster favorable environments to assist in patient recovery and staff working conditions, noise levels are often higher than desirable in and around hospitals. There is a need to identify the main noisy areas and noise sources and evaluate the hospital staff’s reactions to noise.
Key Point Summary
Added April 2014

Noise Levels in a General Surgical Ward: a descriptive study

Author(s): Christensen, M.
The noise levels in many UK hospitals exceed those recommended by the World Health Organization, yet are so prevalent that healthcare providers tend to think of them as just part of the working environment. However, current ward-based research is dated, perhaps indicating that the control of noise in these areas is perceived as insurmountable.
Key Point Summary
Added January 2014

Noise and related events in neonatal intensive care unit

Author(s): Chang, Y. J., Lin, C. H., Lin, L. H.
Noise contributes to environmental stress to premature infants, who often spend long periods of time in neonatal intensive care units (NICU). Some research indicates that noise contributes to higher incidences of hearing loss, as well as cardiovascular, respirator, endocrine, and behavioral deficits. Some of the noise might be reduced by studying different aspects of NICU settings (i.e., wards, personnel, equipment, and procedures).
Key Point Summary
Added April 2014

Noise, stress, and annoyance in a pediatric intensive care unit

Author(s): Morrison, W.E., Haas, E.C., Shaffner, D.H., Garrett, E.S., Fackler, J.C.
To measure and describe hospital noise and determine whether noise can be correlated with nursing stress measured by questionnaire, salivary amylase, and heart rate.
Key Point Summary
Added October 2012

Nighttime Noise Issues That Interrupt Sleep After Cardiac Surgery

Author(s): Spence, J., Murray, T., Tang, A. S., Butler, R. S., Albert, N. M.
Hospital unit environments have excessive environmental ambient sound levels. In cardiac-surgical, general, and neonatal intensive care units, sound levels were commonly more than 50 dBand spiked to 80 dB and 100.9 dB. Common sounds associated with routine care in a postsurgical intermediate care unit have a decibel level in the range of heavy truck traffic (about 80 dB). Noise influences the physiological state of sleep. It is important to reduce nurse-generated and environmental noise when patients are trying to sleep.
Key Point Summary
Added January 2014

Low stimulus environments: reducing noise levels in continuing care

Author(s): Brown, J., Fawzi, W., Shah, A., Joyce, M., Holt, G., McCarthy, C., Stevenson, C., Marange, R., Shakes, J., Solomon-Ayeh, K.
This article highlights a project that aimed to reduce levels of intrinsic background noise on an adult mental health ward. Following intervention, the ward was able to decrease the background noise decibel level from 60dB to 53dB (on average).
Key Point Summary
Added November 2016

Nurses’ Perception of Noise Levels in Hospitals in Spain

Author(s): del Pilar Marques Sanchez, M., Calle Pardo, A. P., Calvo Sanchez, D., Nunez Gelado, Y. & Mompart Garcia, M. P.
Even though we know that noise has an impact on patients, how noise impacts the work environment of nurses is not well understood. In general, relevant studies show that the worse types of noise for patients are background noise, vibrations, screen alarms, and other people talking. Nurse researchers in Spain recently completed the first phase of a multiphase study to identify the most annoying noises in the practice environment.
Key Point Summary
Added January 2016

Effect of noise on auditory processing in the operating room

Author(s): Way, T. J., Long, A., Weihing, J., Ritchie, R., Jones, R., Bush, M., Shinn, J. B.
Noise in operating rooms (ORs), defined as any unwanted sound impeding on normal hearing, can be grouped into two categories: equipment-related noise and staff-created noise. Equipment-related noise can come from anesthesia equipment and alarms, suction devices, or surgical instruments such as cautery devices, dissection tools, and drills. Staff-created noise can come from opening and closing doors, conversations, overhead pages, and music. All of these noise sources contribute to the average ambient noise in ORs, which is 65 dBA with peak levels reaching120 dBA.
Key Point Summary
Added September 2014

Sleep Disruption due to Hospital Noises: A Prospective Evaluation

Author(s): Buxton, O. M., Ellenbogen, J. M., Wang, W., Carballeira, A., O'Connor, S., Cooper, D., Gordhandas, A. J., McKinney, S. M., Solet, J. M.
Hospital noises can have a negative effect on a patient’s sleep pattern. Sleep disruption is associated with hypertension, cardiovascular disease, impaired immunity, and elevated stress. Limited information is available on the connection between specific sounds and sleep physiology.
Key Point Summary
Added September 2014

Neonatal Response to Control of Noise Inside the Incubator

Author(s): Johnson, A. N.
Premature infants are at risk for long-term neurologic, cognitive, and behavioral problems. Therefore, supporting these medically fragile infants as they adapt to life outside the womb by decreasing possible environmental stressors, such as noise, is important. The American Academy of Pediatrics (AAP) Committee of Environmental Hazards recommends that neonatal intensive care unit (NICU) sound levels below 45 dB. Yet these babies are often in incubators, which are associated with higher sound levels from the equipment and surrounding environment.
Key Point Summary
Added January 2014

Clinical review: The impact of noise on patients’ sleep and the effectiveness of noise reduction strategies in intensive care units

Author(s): Xie, H., Kang, J., Mills, G. H.
The World Health Organization recommends that noise levels in hospitals stay below 30 dBA at night to allow for better rest, yet excessive noise is prevalent in many healthcare settings, including intensive care units (ICUs). Research indicates that, since the 1960s, noise levels in hospitals increased by an average of 0.38 dBA (day) and 0.42 dBA (night) per year. Other research reports that the noise level in ICUs ranges from 50 to 75 dBA, with a night peak level soaring to 103 dBA. It’s easy to see why sleep disturbance is common among these vulnerable patients.
Key Point Summary
Added February 2014

Feasibility of noise reduction by a modification in ICU environment

Author(s): Luetz, A., Weiss, B., Penzel, T., Fietze, I., Glos, M, Wernecke, K. D., Bluemke, B., Dehn, A. M., Willemeit, T., Finke, A., Spies, C.
Noise can adversely affect sleep quality, which is important to the recovery of ICU patients. Two ICU rooms in a German hospital were re-designed with the objective of reducing noise. The authors conducted a study wherein they examined the impact of these modifications on sound pressure levels (SPL) in these rooms.
Key Point Summary
Added December 2017

Strategies for reduction of noise levels in ICUs

Author(s): White, A., Burgess, M.
Added October 2012

Noise pollution in the anaesthetic and intensive care environment

Author(s): Kam, P.C., Kam, A.C., Thompson, J.F.
Added October 2012

Noise exposure in the orthopaedic operating theatre: A significant health hazard

Author(s): Love, H.
Added October 2012

Environmental noise alters gastric myoelectrical activity: Effect of age

Author(s): Castle, J.S., Xing, J.H., Warner, M.R., Korsten, M.A.
Added October 2012

The harmful effects of noise in a children's ward

Author(s): Keipert, J.A.
Added October 2012

Noise level measurements in four Phoenix emergency departments

Author(s): Buelow, M.
Added October 2012