Detrimental Effects of Noise on Anaesthetists

Murthy, Vasantmeghna S; Malhotra, Samir; Bala, Indu; Raghunathan, Meena

doi:10.1097/00132586-199702000-00055

Cited by 15 publications

(22 citation statements)

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“…29,30,38 In addition, noise within the ranges typically recorded in ICUs can have detrimental effects on staff performance and stress. 18,[41][42][43] Our data show that even background sound levels (LA 90 ) exceeded WHO and EPA recommendations for LA eq during both day and night times at the majority of time points assessed. In comparison to the higher EPA guidelines, LA 90 levels were regularly 2-4 dBA higher in both ICUs during the day and 7-13 dBA higher at night, corresponding to 20-200% increases in loudness.…”

Section: Discussionmentioning

confidence: 66%

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Sound Pressure Levels in 2 Veterinary Intensive Care Units

Fullagar

Boysen

Toy³

et al. 2015

Veterinary Internal Medicne

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BackgroundIntensive care units (ICUs) in human hospitals are consistently noisy environments with sound levels sufficient to substantially decrease sleep quality. Sound levels in veterinary ICUs have not been studied previously, but environmental sound has been shown to alter activity in healthy dogs.HypothesisVeterinary ICUs, like those in human medicine, will exceed international guidelines for hospital noise.AnimalsNA.MethodsProspective, observational study performed consecutively and simultaneously over 4 weeks in 2 veterinary ICUs. Conventional A‐weighted sound pressure levels (equivalent continuous level [a reflection of average sound], the sound level that is exceeded 90% of the recording period time [reflective of background noise], and maximum sound levels) were continuously recorded and the number of spikes in sound >80 dBA were manually counted.ResultsNoise levels were comparable to ICUs in human hospitals. The equivalent continuous sound level was higher in ICU1 than in ICU2 at every time point compared, with greatest differences observed on week day (ICU1, 60.1 ± 3.7 dBA; ICU2, 55.9 ± 2.5 dBA, P < .001) and weekend nights (ICU1, 59.9 ± 2.4 dBA; ICU2, 53.4 ± 1.7 dBA, P < .0001) reflecting a 50% difference in loudness. Similar patterns were observed for the maximum and background noise levels. The number of sound spikes was up to 4 times higher in ICU1 (162.3 ± 84.9 spikes) than in ICU2 (40.4 ± 12.2 spikes, P = .001).Conclusions and Clinical ImportanceThese findings show that sound in veterinary ICUs is loud enough to potentially disrupt sleep in critically ill veterinary patients.

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Section: Discussionmentioning

confidence: 66%

“…Although noise level recommendations for veterinary ICUs do not exist, it has been shown that the behavior of dogs is affected by environmental noise, both within a simulated ICU environment and in a rescue shelter . In addition, noise within the ranges typically recorded in ICUs can have detrimental effects on staff performance and stress …”

Section: Discussionmentioning

confidence: 99%

Sound Pressure Levels in 2 Veterinary Intensive Care Units

Fullagar

Boysen

Toy³

et al. 2015

Veterinary Internal Medicne

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“…In a study by Murthy et al, anaesthesia residents exhibited reduced mental efficiency and poorer short term memory under the noisy conditions of an operating room averaging 77 dB. 17 In addition to safety considerations, noise affects the quality of the healing environment for patients. It may elevate blood pressure, increase pain, alter quality of sleep, and reduce overall perceived patient satisfaction.…”

Section: Noise Reductionmentioning

confidence: 99%

Safe design of healthcare facilities

Reiling¹

2006

Qual Saf Health Care

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The physical environment has a significant impact on health and safety; however, hospitals have not been designed with the explicit goal of enhancing patient safety through facility design. In April 2002, St Joseph’s Community Hospital of West Bend, a member of SynergyHealth, brought together leaders in healthcare and systems engineering to develop a set of safety-driven facility design recommendations and principles that would guide the design of a new hospital facility focused on patient safety. By introducing safety-driven innovations into the facility design process, environmental designers and healthcare leaders will be able to make significant contributions to patient safety.

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“…This is consistent with scientific evidence that indicates that exposure levels above 85 dB represent an unacceptable risk 2 . The sound level in the operating theatre may also affect the staff's ability to concentrate 3 . Sound levels of 77 dB(A) result in reduced mental efficiency and short‐term memory.…”

mentioning

confidence: 99%

“…Background sound levels may also negatively impact on the speech discrimination 4 . A background sound level of 77 dB(A) or greater leads to a considerable decline in cognitive functions, mental efficiency, short‐term memory and speech discrimination 3,4 …”

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confidence: 99%

Noise in the operating theatre: how much is too much?

Barakate

Jacobson²,

Geyl

et al. 2010

ANZ Journal of Surgery

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unpredictable behaviour of metastatic RCC, the absence of curative adjuvant therapies and the poor response of muscular metastases to immunotherapy, the main cure for this lesions is surgical resection with adequate margins. References 1. Bennington JL, Kradjian RM. Sites of metastases a autopsy in 523 cases of renal cell carcinoma. In: Bennington JL, Kradjian RM (eds). Renal Carcinoma. Philadelphia, PA: WB Saunders, 1967; 156-69. 2. McNichols DW, Segura JW, DeWeerd JH. Renal cell carcinoma: longterm survival and late recurrence. J. Urol. 1981; 126: 17-23. 3. Linn JF, Fichtner J, Voges G, Schweden F, Storkel S, Hohenfellner R.Solitary contralateral psoas metastasis 14 years after radical nephrectomy for organ confined renal cell carcinoma.

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Detrimental Effects of Noise on Anaesthetists

Cited by 15 publications

References 0 publications

Sound Pressure Levels in 2 Veterinary Intensive Care Units

Sound Pressure Levels in 2 Veterinary Intensive Care Units

Safe design of healthcare facilities

Noise in the operating theatre: how much is too much?

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