439 Managing Parathyroid Carcinoma in the Age of COVID 19

Aim

Parathyroid carcinoma is a rare malignancy accounting for 1% of cases of primary hyperparathyroidism. Pre-operative diagnosis is difficult because in the absence of metastatic disease, the presentation is similar to benign parathyroid disease. In patients with hyperparathyroidism and severe hypercalcaemia or a significantly raised parathyroid hormone (PTH) level clinicians should consider parathyroid carcinoma and expediting surgical management. During the current pandemic, a high index of suspicion should be maintained to ensure that care is not compromised. A review of the management of patients with suspected parathyroid carcinoma during the COVID-19 pandemic is presented.

Method

In our tertiary referral centre for Endocrine surgery, 4 presentations of parathyroid cancer were reviewed. Their investigations, surgical management and post-operative outcomes are described with a brief literature review of parathyroid cancer.

Results

Of the four cases of parathyroid carcinoma described, all presented with severe hypercalcaemia and significantly raised PTH levels. Pre-operative mean calcium was 3.36mmol/L and mean PTH was 80pmol/L (52-99.8). Patients were imaged with a combination of cross-sectional imaging and ultrasound. Two patients had evidence of distant disease at presentation. 1 patient was transferred as an inpatient to our centre and the other three patients were seen within 2 weeks of referral; the mean time from referral to surgery was 14days (1-23). Post-operatively, all patients achieved normocalcaemia, with PTH levels normal in all but one.

Conclusions

Despite limitations on face-to-face clinic consultations and reduced capacity for elective surgery during the COVID-19 pandemic, all patients were investigated and managed promptly to ensure superior outcomes.

1424 Enhanced Consent in Endocrine Surgery in The Era Of COVID-19

Aim

Informed consent is the process by which surgeon and patient agree to undergo a procedure after the risk, benefits and alternative treatments have been discussed. The current COVID-19 pandemic provides unique challenges to the consent process such as the uncertain risk of acquiring the virus and the impact of a second peak on the health services. The aim of this audit was to use an enhanced consent tool to inform patients of specific risks associated with surgery during the pandemic.

Method

At the beginning of the pandemic, elective operating was postponed - these patients were added to a COVID-19 database. With the resumption of services, all patients had a telephone clinic appointment with a 2-fold aim: 1) to ensure they wanted to remain on the waiting list and 2) to discuss consent specifically with regard to COVID-19 using an enhanced consent tool.

Results

Over a 6-week period, 79 patients were contacted. All patients were awaiting thyroid, parathyroid and adrenal operations. Of the 79 patients contacted, 77 (97%) agreed to remain on the waiting list after discussing the risks using the enhanced consent tool. The remaining 2 patients asked for their operations to be delayed. To date, none of our patients have acquired COVID-19 upon the resumption of services.

Conclusions

Despite the uncertain risks of COVID-19, the majority of patients requiring endocrine surgery were happy to proceed. Ongoing review of available literature concerning preoperative risk and COVID-19 is essential for clinicians involved in the consent process. The use of an enhanced consent tool standardised the consent process and enabled patients to make an informed decision concerning their care.

637 Patients' Perceptions of Complications Following Thyroidectomy

Aim

The aim of this study was to assess patients' understanding of the risks of thyroid surgery and to assess whether their understanding of risks improved following the implementation of a pre-operative risk-tool.

Method

Single centre prospective cohort study between June 2019-August 2019. All patients that underwent thyroid surgery were recruited. Patients had either the standard process of consent or were provided with a pre-operative risk-tool and information leaflet. Post-operatively all patients were provided with a questionnaire to determine their understanding of the risks involved in having thyroid surgery. Data was analysed using GraphPad Prism v6.

Results

51 thyroidectomy patients were recruited; 28 patients had a standard process of consent and 23 patients were provided with the risk-tool. Patients undergoing standard consent processes had a poor understanding of the magnitude of post-operative risk; their median score for risk magnitude was 4.5/10 (2-7) versus 8/10 (4-10) in the cohort receiving the risk-tool. The proportion of intervention to non-intervention participants giving the correct answer reached a statistically significant difference in 50% of questions asked (P < 0.001).

Conclusions

It is imperative thyroidectomy patients are made aware of both rare events but also the frequency of which events occur so that they are properly informed prior to consenting. We have demonstrated that standard processes of consent in thyroidectomy patients leads to poor perception of risks; providing a surgical risk-tool can counteract this. These results warrant development of clear guidelines on the use of pre-operative surgical risk-tools in thyroidectomy patients.

187 Improving Awareness of Managing Post-Operative Haemorrhage in Patients Undergoing Thyroid and Parathyroid Surgery: The SCOOP Protocol

Introduction

Post-operative haemorrhage is a rare but potentially life-threatening complication of thyroid surgery and occurs in 1 in 100 patients. Our aim was to assess current levels of awareness of post-operative haemorrhage in the surgical department and to improve confidence in managing this.

Method

Questionnaires with a combination of clinical questions were distributed amongst nurses, foundation doctors, senior house officers and registrars in the surgical department.

Results

There was a clear gap in awareness in all grades. The British Association of Endocrine and Thyroid surgeons (BAETS) have guidance on the management of these patients and in particular the acronym SCOOP (Steristrips removed, Cut subcuticular sutures, Open skin wound, Open strap muscles, Pack wound). 18/24 of participants had not heard of the SCOOP protocol. Most nurses (6/12) all junior doctors (8/8) showed lack of confidence in managing patients with suspected bleeding.

Conclusions

An informative poster was created for relevant clinical areas as per the BAETS recommendation. These posters outlined the steps in the SCOOP acronymas well as the main clinical signs of haemorrhage. BAETS recommend that all first responders, including nursing staff, junior doctors and the crash team should be aware of the SCOOP protocol. Simulation training sessions are in progress for these members of staff.

O73: IMPROVING CONSENT WITH A VISUAL TOOL FOR COMMUNICATING SURGICAL RISKS

Introduction

Patients must understand the risks of a procedure to provide valid consent. Guidance from the General Medical Council and Royal College of Surgeons of England highlights that surgeons need to communicate risks in a way that patients can understand, and both institutions specifically mention the use of written information. We aimed to improve communication of surgical risks to patients undergoing thyroid surgery.

Method

Over 3 months, all patients undergoing thyroid surgery in a tertiary referral centre were included (n=51). Participants were given a 10 point questionnaire after the consent process. Each question had 4 options (very common, common, uncommon and rare) and tested participant understanding of surgical risks. Our intervention was a single page annotated graphic, which used a traffic-light system to explain surgical risks.

Result

When consented prior to our intervention (n=28), patient understanding of the magnitude of surgical risks was poor; median questionnaire score was 4.5 out of 10, and for some questions <15% of participants selected the correct answer. Following introduction of our surgical risk tool (n=23) median overall participant score increased from 4.5 (range 2-7) to 8.0 (4-10) out of 10 (P<0.0001; Mann-Whitney U test).

Conclusion

Patients must understand the risks of an operation, and the magnitude of those risks, in order to provide valid consent. Addition of a visual surgical risk tool enabled us to increase patient understanding of surgical risks, improving the consent process. This has implications not just for thyroid surgery, but for any procedure requiring consent.

Take-home message

Clear communication of surgical risks is essential to obtain valid consent. The use of a visual surgical risk tool increases patient understanding of risks, and therefore improves the consent process.

Modification, validation and implementation of a protocol for post-thyroidectomy hypocalcaemia

Introduction The management of post-thyroidectomy hypocalcaemia should facilitate early discharge, and reduce risks of hypocalcaemia, readmission and treatment related hypercalcaemia. This paper describes the implementation, evaluation and revision a protocol for the optimal management of this condition. Methods Day 1 parathyroid hormone (PTH) measurements in addition to calcium measurements were commenced following review of the unit's outcomes and literature on post-thyroidectomy hypocalcaemia. Outcomes from a three-year cohort of patients undergoing thyroid surgery helped amend this protocol (revision 1) to reduce biochemical tests, stipulate the need, nature and dose of vitamin D/calcium supplements, and encourage early discharge. This was further validated over seven months to assess compliance, episodes of hyper and/or hypocalcaemia after discharge, readmissions and need for treatment changes. Further revisions were made (revision 2) and implemented. Results The temporary and long-term postoperative hypocalcaemia rates were 29.1% and 3.2% respectively. Repeat calcium measurements on the first day altered management in only 1.4% of cases. The revised protocol was adhered to in 90% of cases. One patient had hypocalcaemia (due to non-compliance) and one had hypercalcaemia. Revision 2 involved reducing the dose of calcium. Conclusions This is a good example of a unit protocol for post-thyroidectomy hypocalcaemia being developed and modified on the basis of the literature and local experience. Day 1 PTH and calcium levels determine the need for treatment and frequency of follow-up visits, facilitate early discharge, reduce risk of over and/or undertreatment, and are good indicators of permanent hypocalcaemia.