Forstyrrelser ved bruk av trdls telefon p sykehus

Forstyrrelser ved bruk av trådløs telefon på sykehus: forslag til forbedring Interrupts caused by use of wireless phones in hospitals: proposal for improvement Henrik Gundersen, ntnu, henrikg@stud. ntnu. no Paul Martin Lello, ntnu, paulmart@stud. ntnu. no Arnhild Kristinsdatter Lindbach, ntnu, gadnihasj@yahoo. no Åsmund Skjerdal, ntnu, asmundsk@stud. ntnu. no Lill Kristiansen, Telematikk, ntnu, lillk@item. ntnu. no (based on Ei. T-course Interdisciplinary project work at ntnu) 1

Forstyrrelser ved bruk av trådløs telefon på sykehus: forslag til forbedring Interrupts caused by use of wireless phones in hospitals: proposal for improvement Henrik Gundersen, ntnu, henrikg@stud. ntnu. no Paul Martin Lello, ntnu, paulmart@stud. ntnu. no Arnhild Kristinsdatter Lindbach, ntnu, gadnihasj@yahoo. no Åsmund Skjerdal, ntnu, asmundsk@stud. ntnu. no Lill Kristiansen, Telematikk, ntnu, lillk@item. ntnu. no (based on Ei. T-course Interdisciplinary project work at ntnu) 2

Challenges and goals ”How can we reduce interruptions by telecommunication between clinicians” n How can we reduce the harm of interruptions produced by patient signal system, phone calls and pagers toward clinicians? n How can we make an economical and practical solution to the problems of interruptions in clinical settings n How can we do this without making the communication praxis more complicated? 3

What is an interruption? According to New Oxford American Dictionary: 4

Methods n Litterature studies from research field n general on interrupts n specific for health care n Seminar at NSEP in January 09 (20+ attendees) n showed film + discussion n Interview with 1 nurse n Document studies (in particular of notes on experiences from nurses during phase 1 at St. Olav’s) n 3 hours participation on telephony training for doctors n Doc. studies of training material n (Experience as mobile phone owners, partly as patients) 5

Studies dealing with interruptions n Harr and Kaptelinin (2007) classifies studies dealing with interruptions in three distinct categories dealing with: l Research concerning the effects of interruptions on the individual (1) l Research concerning the ways to stop disruptive interruptions from occurring (2) l Research concerning the ways to limit the damage caused by interruptions (3) n Based on health case research we decided that (3) was the most appropriate approach. 6

Reducing the damage of interruptions n Research trying to reduce the damage caused by interruptions is often focused on ’timing’, or ways to ’filter out’ irrelevant information in work situations. n Other methods for reducing the damages caused by interruptions are often focused on using different modalities like heat, smell, sound, vibration and light. All as a means to reduce the interruption between perceptual and cognitive processes in organizational settings. 7

”. . . a short postponement of upcoming interaction. ” (Wiberg and Whittaker, 2005) n Note: Here A is ’callee’ and B is ’caller’ n Wiberg and Whittaker (2005) calls this ‘negotiating a short postponement’. They also propose an application called ‘Negotiator’ n But it might be in a phone case that the only negotiation is ‘no action’ (no explicit ‘gesture’ back to caller) 8

Interruptions in a clinical setting n Recent studies have demonstrated that the communication situation in hospitals may result in interruptions that influence the work situation (Coiera and Tombs 1998, 673), interruptions that may result in malpractice (Kevin et al. 2003). n “Selfish communication practice” (Coiera and Tombs 1998) n Coiera and Tombs propose wireless (mobile) technology as a remedy l This proposal may not take into account workarounds 9

From UNN, Tromsø (Scholl et al. , 2007) n A study of doctors use of wireless phone l long walking distances: a wireless phone is very convienient to place an outgoing call (or to reply to a page) l But it is interruptive in many situations n They find various workarounds such as: l Not listing the wireless phone in the phone book è avoiding incoming calls l Not carrying the wireless phone (leaving it in the office) è also to avoid incoming calls (avoids outgoing calls as well!) l Forwarding calls to the pager è Unclear if this is ‘call forward unconditional’ (Umiddelbar omdirigering’) or call forward on no reply è the latter will probably cause some callers to hang up before the page is initiated, i. e. serve as an additional ‘filtering mechanism’ 10

St. Olavs Hospital: new ICT systems n Our investigations is based on the existing (new) ICT systems at St. Olavs Hospital in Trondheim. l Focus on economical and practical solution n All clinicians (and most/all) administrative staff is equipped with wireless phone (IP-based) l Used for telephony by all, messages, pager ++ l Nurses use the wireless phone also a one (of several) means to receive / be aware of patient signals. 11

New hospital – bed courts (sengetun) n Short distances between nurses n Doctors are not located at the bed court n Both doctors and nurses have wireless phone in the new hospital 12

Nurses and Interrupts n Nurse with busy hands l Even if she wants to accept the signal, she may be too late è 15 sec. timer èScreen lock on when receiving signals (from interview) n Patient signal on the phone (in the ear!) while in a phone conversation (St. Olav, 2006): l Also causing interrupts for the other party on the phone n Also some interrupts caused to phone calls towards nurses (seems less important, Sletten, 2009) n Also the general fact that many things may go on at the same time (with or without wireless phones) 13

Patient signal system: from patient/room to ’some’ nurse PC-client to set up the responsibilities per room (i hht bemaningsplan) PC på sengetun Anropspanel Våtsone Pasient Rompanel Pasientterminal Ignore / timeout Vaktromsapparat Reject Accept 14

Telephony: from ’some’ (doc. /nurse/. . ) towards a clinician (here: a doctor) (personal call or role based call) Cisco Call. Manager/ Soft PBX / sentralbord Red = (direct) interrupt "My pager has gone off five times in the past 15 minutes, while I've been trying to take Mr. Jones's history. I can't keep his complicated history straight. (Kevin et al. 2003)" ”Når calling’en [personsøkeren/ pager] piper på hylla i enden av operasjonssalen er det noen som trenger din hjelp. Men pipingen fra søkeren forstyrrer ofte operasjonen du holder på med, ” (telemed. no) 15 Phone seems more interruptive than the pager (Scholl et al. , 2007)

Details of the phone n Used for patient signal reception l Ignore l Reject l Accept n Used for paging l No details provided here n Used for outgoing calls n Used for incoming calls l Yes (green / 13) l Redirect (button 14) l Silence ring signal (red / 7) n Red button is DIFFERENT from the ordinary red button on a mobile phone l Silence ring signal =/= l Reject the call (or redirect) n Red button allows a 10 -15 sec. delay 16

Minimizing the harm of the interrupt via a Bluetooth (BT) device Imatis messageserver Cisco Call Manager 17 Idea: Keep rest of technical system mostly/totally unchanged Main focus here: on the callee side (signals, calls and pages)

Non-functional requirements n Design req. l l Screen upwards Two buttons Weight Water splash, falling to the floor etc. n Screen l LED display n Battery l Standsby time n Bluetooth l HID (Human Interface Device Profile) è supports battery saving è The device is not an ordinary handsfree set l BT 2. 0 l Details on BT in the paper 18

Main Use Cases for BT device (brukstilfeller) n UC 1: Connect phone and BT device n UC 2: Show caller-ID on incoming call n UC 34: Accept call, delay the answering (via Mute/silence) or redirect (Umiddelbar omdirigering) ( ref. req. F 3, F 4) n UC 6: Show room number for pasient signal (ref. krav F 6) n UC 7: Accept pasient signal or send further to next nurse (ignore or reject) (ref. krav F 7) n UC for messages. n Others 19

Simplifying the communication? “How can we make the communication easier for all parties? ” “How can we reduce the interruptions produced? ” “. . . without making the communication praxis more complicating? ” n The device is easily visible and available. n No new complicated negotiating back-and-forth between caller and callee n No need for all users to use the new device, offers individual advantages (no ‘critical mass issue’) 20

Reducing Interruptions / Discussion 1 “How can we reduce the impact of interruptions on clinical personnel from mediated communication, especially with important tasks and consultations in mind? ” n The proposed Bluetooth-device is more easily accessible than the wireless phone, something that in turn will make it possible to quickly evade interruptions in inconvenient situations (like consultations). n The device is proposed as a solution for problems that arise with phone is inaccessible in pockets. l Following one design proposal from Scholl et al. (2007) 21

Reducing Interruptions / Discussion 2 n Bluetooth device offers the possibility of better timing (slight delay or reject) èmute call, (silence ring signal) èredirect call, èreject patient signal 22

A realistic, economic and simple solution “How can we make a economical and practical solution to the problematics of interruptions in clinical settings “ n Since the Bluetooth-device in principal functions as a supplement to existing communication systems there will be no need to replace existing systems for it to work. n Since Bluetooth is a backwards-compatible technology, the device will function with newer technology. n Since the device is firmly based on the pager, it is probable that this will improve the process of introducing new technology (since pagers already are in use in most hospitals). Therefore, the device may easily be introduced into the working environment. 23

Questions? 24

For discussion n Showstoppers? n Scenario 1: Finding the (right) BTdevice n Economy: The device is ’similar’ to a handsfree unit, but will not be a mass market device higher price n Need all nurses have their personal BT device? l Main interrupt issue for nurses is patient signals during an ongoing call l Connect the BTdevice during the ongoing call? l Other means to ’opt out’ (midlertidig melde seg ut) of patient signal responsibilities? èSome alternatives functionality without new devices are proposed in Sletten (2009) 25

Low tech / low economy version (for both nurses and doctors): n Just modify the ringing sound for incoming phone calls l From: è’the phone rings and rings’ l To: èring, ring (almost silent 10 sec. ), ring a final ring (i. e. an automatic variant of silence the ring signal) èor find a melody that acts like this n A much simpler and cheaper solution l may not solve all the relevant problems l But may be discussed in a cost view 26

Informing (or negotiating with) the caller: pros and cons n Relevant for phone calls (and paging) i. e. when the caller is a clinical co-worker l Less relevant for patient signals èpatient should not worry about total work load and organizational issues n Can be done prior to call l ’active status’ in address book (’widget’) / visible cues / ++ n Can be done during the call n Can be done after the call in a separate message l Will this happen in a busy day in hospitals? 27

prior, during or after a call n Prior to call: l Similar to Aware. Phone (Bardram and Hansen, 2004) n but requires updates of the status field (i. e. manual overhead) (or the use of automatic location) n During the call l Similar to SE P 990 (send an SMS in return) l Or via predefines voice messages like (’wait 10 seconds’, ’lunch’, ’surgery’ etc) (unpublished prototype by Ericsson) l May be automated from callee (with a ’force through option’ for caller) l Some solutions are suitable for meetings, surgery etc but probably not for nurses with both hands occupied n After the call is a separate message l ref. SMS ’Forelesning’ received by my daughter. èmore relevant for interrupts when sitting in meetings ètexting for nurses with busy hands? 28

Negotiating back to caller / Negotiator (Wiberg&Whittaker) n Several ’pros’ when not negotiating back to caller (our solution) l technically simpler ( cheaper) l Offer instant individual relief (not depending on critical mass to be useful) l (Negotiator required that both caller and callee where using the new feature) l The ’selfish clinical worker’ get the benefit him/herself (Coiera and Tombs, see also Grudin) n ’Cons’: less rich context back to caller in order for caller to decide on further actions 29

30 Eller at vi hadde faste møteavtaler?

Further work n Build the prototype and test it l Or presenting to clinicians and receive feedback n Look more into organizatinal issues, ways to avoid (some) interrupts l regular meetings / scheduled events? l more use of messages inside the EPR? l The issue of communication between nurses and doctors may require special attention (ref. Ero Stig Karlsen) l Using redundancy is an active way coupled with the bemanningsplan (ongoing work) èredundancy of function (nurses can cover for each other) èredundancy of data (fixed and wireless system offer redundancies) 31