Outpatient Surgery for Brain Tumours: a Changing Paradigm
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Editorial Outpatient surgery for brain tumours: A changing paradigm The last couple of decades has witnessed an increasing et al. conducted a prospective analysis of 1003 patients trend in ambulatory surgery and day of admission over a 13-year period who underwent outpatient surgery. Enhanced recovery after surgery (ERAS) is craniotomy, biopsy and spinal decompression. Out of the a multimodal perioperative pathway of care model 249 patients who underwent craniotomy in this series, designed to facilitate early discharge of patients from 92.8% were successfully discharged from the day surgery hospital and at the same time achieve improved unit (DSU), 5.2% were admitted from the DSU and 2.0% functional capacity.[1] The advantages to the patient are were discharged and later readmitted.[4] manifold and include less time spent in the hospital, less time lost at work preoperatively and the ability These authors did not report any adverse events as a to remain in a familiar setting preoperatively, all of result of outpatient surgery. which lead to better patient satisfaction. Shortened Patient selection is of utmost importance for successful hospital stays and earlier mobilisation also reduce implementation of outpatient surgery. In addition, the risk of hospital‑acquired infections and venous patients and attendants need to be educated regarding the thromboembolism and, interestingly, less risk for procedure, the expected complications and the necessity medical errors.[2-5] Moreover, it is more economical to readmit the patient in the event of complications. The to the hospital as there is more efficient and effective post-operative complications that one is particularly use of resources including decreased average length concerned about in these patients include intracranial of stay and increased availability of inpatient surgical haematoma, post-operative brain swelling and seizures. beds in the hospital.[6] The latter leads to fewer case The incidence of surgical haematoma following cancellations.[3] intracranial surgery requiring surgical evacuation is [10] Although it was routinely being done for spine surgery 2%. Taylor et al. found that intracranial haematoma since the 1980s,[7] there had been resistance amongst usually occurs within 6 h of craniotomy or stereotactic neurosurgeons in implementing ambulatory surgery for biopsy.[11] Keeping this in mind, the DSU protocol cranial procedures, primarily because these patients are includes a post-operative computed tomography scan at greater risk for adverse neurological outcomes and at 4 h and conversion to inpatient status in the event of diminished long-term functional status as compared to significant haematoma or oedema, even if the patient the average surgical patient. Moreover, the occurrence is clinically asymptomatic.[1] Usually, patients are of post-operative complications in patients following discharged 6 h after surgery once the discharge criteria are brain tumour surgery outside of a hospital setting could met. Post-operative brain oedema, which usually peaks be devastating. With the advent of minimally invasive around the 2nd or 3rd post-operative day, has the incidence neurosurgery and image-guided surgery resulting of 10%.[12] Most neurosurgeons prefer to keep their in smaller openings, shorter recovery times and less patients under observation during this period although post-operative pain, more and more centres in the West the value of this is not really known.[13] In a recent 5-year are now implementing ambulatory or same-day surgery retrospective observational study of same-day discharge admission for cranial neurosurgery, both awake and for supratentorial tumours, Venkatraghavan et al. found under general anaesthesia (GA). The Toronto group has that successful same-day discharge was possible in 88.4% been reporting the use of outpatient craniotomy since of patient with a readmission rate of 2.9%.[1] Same-day the last two decades, and the first pilot feasibility study discharge has been found to be feasible after both GA was reported in 2001.[8] Subsequently, they reported and awake craniotomy.[1,3] The key factors contributing their 11-year experience with outpatient image-guided to successful discharge on the day of surgery include biopsies and outpatient craniotomy for intra-axial careful patient selection on an individualised basis, small supratentorial tumours and concluded that it was safe craniotomy flaps and an estimated surgical duration and effective in selected patients.[5] Initially, they were of <4 h. The latter would enable 6 h of post-operative doing mainly awake craniotomies as outpatient surgery, monitoring before discharging the patient to home. but with more experience, they have expanded their Sughrue et al. demonstrated the feasibility of early protocol to include even craniotomies under GA.[3] discharge (day 1 or 2) following keyhole craniotomies Subsequently, Grundy et al. reported the first UK series under image guidance.[13] In their series, 17% were of day-case neurosurgery with similar results.[9] Purzner infratentorial lesions. Their philosophy was to discharge © 2017 Journal of Neuroanaesthesiology and Critical Care | Published by Wolters Kluwer ‑ Medknow | 1 Editorial patients the day after surgery once the discharge recent article by Turel and Bernstein has addressed criteria were met. However, their readmission rate was various issues and hurdles related to its adaptability in higher (4.8%), and 1.9% required readmission for repeat India.[6] These authors have suggested that a good way to surgery to address complications. Their data suggested initiate it would be to start with early discharge on day that the most serious post-operative complications 1 or 2 following surgery in selected patients and even following craniotomy usually occur within hours and selected hospitals and then determine whether this could not days and the complications requiring readmission be replicated in the outpatient setting. would not have been avoided by longer inpatient stays. In fact, Venkatraghavan et al.[1] found that the rate of Mary Abraham readmission following one outpatient craniotomy (2.9%) was similar to that following inpatient admission Indian Spinal Injuries Centre, Vasant Kunj, reported by Grundy et al.[9] The reasons for readmission New Delhi, India cited by Au et al. include seizures, aphasia, wound Address for correspondence: haemostasis, cognitive impairment and new weakness.[3] Prof. Mary Abraham, Of the 4.8% of readmissions in Sughrue’s series, none C‑39D, Pocket C, Gangotri Enclave, Alaknanda, New Delhi, India. E‑mail: [email protected] were due to post-operative swelling.[13] The incidence of post-operative seizures varies between 2% and 10% REFERENCES and usually occurs in the immediate post-operative period,[14] and the necessity for observing patients for 1. Venkatraghavan L, Bharadwaj S, Au K, Bernstein M, seizures beyond 6 h after surgery is doubtful. Most Manninen P. Same‑day discharge after craniotomy for supratentorial tumour surgery: A retrospective observational of the protagonists for outpatient surgery or early single‑centre study. Can J Anaesth 2016;63:1245‑57. discharge for brain tumours are of the opinion that if 2. Pearse R, Dawson D, Fawcett J, Rhodes A, Grounds RM, the patient is stable the day after surgery, the risk of Bennett ED. Early goal‑directed therapy after major surgery a catastrophic complication occurring thereafter was reduces complications and duration of hospital stay. minimal. For an ERAS pathway to be successful, it should A randomised, controlled trial [ISRCTN38797445]. Crit Care 2005;9:R687‑93. incorporate strict inclusion and exclusion criteria as 3. Au K, Bharadwaj S, Venkatraghavan L, Bernstein M. well as discharge criteria. The latter should be a mutual Outpatient brain tumor craniotomy under general anesthesia. decision amongst the patient, caregiver, neurosurgeon J Neurosurg 2016;125:1130‑5. and neuroanaesthesiologist. Nurses also play a key role 4. Purzner T, Purzner J, Massicotte EM, Bernstein M. Outpatient in facilitating outpatient surgery, especially with respect brain tumor surgery and spinal decompression: A prospective study of 1003 patients. Neurosurgery 2011;69:119‑26. to providing information and education to patients 5. Boulton M, Bernstein M. Outpatient brain tumor surgery: and their caregivers, preparing them for surgery and Innovation in surgical neurooncology. J Neurosurg helping them manage their post-operative care regarding 2008;108:649‑54. medications, complications and precautions.[6] Thus, 6. Turel MK, Bernstein M. Is outpatient brain tumor surgery in association with the physicians, they could take on feasible in India? Neurol India 2016;64:886‑95. 7. Zahrawi F. Microlumbar discectomy. Is it safe as an outpatient the role of counsellor and address many concerns of procedure? Spine (Phila Pa 1976) 1994;19:1070‑4. the patient in the perioperative period. Khu assessed 8. Bernstein M. Outpatient craniotomy for brain tumor: A pilot patients’ perception of outpatient craniotomy for feasibility study in 46 patients. Can J Neurol Sci 2001;28:120‑4. supratentorial tumours and they found that patient 9. Grundy PL, Weidmann C, Bernstein M. Day‑case neurosurgery satisfaction was high and many patients were surprised for brain tumours: The early United Kingdom experience. Br J [15] Neurosurg 2008;22:360‑7. that brain surgery can be done on an outpatient basis. 10. Khaldi A, Prabhu VC, Anderson DE, Origitano TC. The These authors concluded that outpatient craniotomies