Our study documented a 72.3% overall reduction in surgical volumes across various levels of healthcare facilities. The COVID-19 pandemic has affected the pre-existing frail surgical care delivery system in LMIC like India where workforce as well as infrastructure resources are limited.[12] The reduced access to hospitals due to national lockdown and subsequently reduced admissions and footfalls further affected the number of surgeries being performed.[3, 14] In our study, the reduction by three fourths is significant, considering large teaching hospitals as well as secondary care (district) hospitals are represented. These referral hospitals were the only functioning healthcare facilities in the initial month after lockdown and the smaller hospitals and private nursing homes had shut down.[3, 6] ‘COVID Surge Collaborative’ in its prediction of effect of pandemic on cancellations of surgeries, estimated that 72% of the total surgeries would be cancelled due to pandemic and cancellation of elective surgeries for a 12-week period was estimated to be at 80%.[2] Similar 79% drop in the neurosurgeries was documented in a global survey. This survey documented 81% reduction in neurosurgical services in India.[4] An Italian study documented a drop-in emergency surgery by 86% in the first month after nation-wide lockdown. This drop was in spite of reserving a center specially for emergency medical and surgical care in patients, other than COVID-19 infected patients.[3] Our study period, similarly corresponds to the first month after a lockdown was announced for the pandemic. None of the studies have documented the effect on emergency surgeries other than those for sub specialties. [1, 6, 10, 12] Similar 70% drop in surgical admissions and 50% drop in major surgeries was documented in the Ebola pandemic from Sierra Leone.[15]
We found a 54% reduction in emergency surgeries and a 91% reduction in the elective surgeries. The reduction in the emergency surgeries may be attributed to resource diversion to the care of COVID-19 patients, as well as lockdowns leading to poor access to healthcare. Omission of these emergency surgeries, which include essential surgeries, would lead to a huge disease burden and consequently a larger number of Disease Adjusted Life Years (DALYs).[5] As the number of total surgeries reduced, the proportion of emergency surgeries increased from 51 to 84%. The proportion of emergency surgeries within total surgical volumes is a measure of how advanced the surgical systems are.[16, 17, 18] The proportion of emergency surgeries is higher in the less advanced health systems as these systems are not prepared to handle advanced and elective procedures. The enumeration of surgeries in low income countries like Sierra Leone and Ghana in non-pandemic times, showed that 60–70% of the surgeries are emergency surgeries among the total volumes.[19] The pandemic situation has brought down the surgical systems all over the world to ‘limited resource environments’, where predominantly emergency surgeries are being performed and there are limited or no resources allotted for advanced and elective surgeries. This has led to expected subsequent rise in the proportion of emergency surgeries as we have documented in this study.
We documented a 54% reduction in the NHS category 1 surgeries. Provision of these surgeries would avert 6–7% of avertable deaths in LMICs. Hence quantifying this gap in the delivery of emergency surgeries is necessary for making provisions for them. There are no Indian studies to compare or externally validate our observations about overall reduction in emergency surgeries. Similar studies during Ebola epidemic in Africa had showed a similar reduction in the surgical volume.[15] Studies from Italy documented similar 70–78% reduction in elective urological and oncological surgeries, our study has documented an effect of similar magnitude (91%) on elective surgeries as documented from Italy.[11, 20]
Caesarean sections were affected the least of all emergency surgeries (29.7%) as shown in Fig. 3, documenting that redistribution of priorities happened even within the emergency surgery category. Similar studies measuring impact on obstetric services and caesarean sections in the COVID pandemic were not available for comparison. The Sierra Leonean study documented a similar 20–40% reduction in Caesarean surgeries during initial period of Ebola epidemic within first 21 weeks from the onset of pandemic.[21] It is possible that Caesarean sections were prioritized by the healthcare workers and the risk-taking ability of the healthcare workers for the caesareans were higher compared to that for other surgeries. This was documented by healthcare workers’ narratives in another study documenting Ebola pandemic. [22] The number of caesareans picked up and even increased within six months in the Ebola epidemic. We will need longer follow up period to assess the trends.
The higher number of reductions in surgeries for fractures and trauma could be due to reduced numbers of vehicular accidents and road traffic restrictions enforced due to lockdown. We did not have documentation of the mechanism of injures in these ‘surgeries for fractures. We could, thus, not confirm whether the fractures operated during the pandemic period were caused by road traffic accidents or any other mechanisms. The orthopedic study considering femur fractures documented reduced femur fracture rates by 25%.[23] A definite change of indications for operations was documented in the global neurosurgery survey and also in a study from Spain, where threshold for surgery was higher than pre-pandemic period.[4, 24] The Spanish study documenting abdominal emergency surgeries, attributed the reduction partly to changed indications for surgeries. Appendicitis, cholecystitis and some of the abdominal conditions may have been treated conservatively with higher threshold for surgery.[24] This may explain similar decline in laparotomies and surgeries for fractures in our study. Reduced access to hospitals and subsequent reduced footfalls and admissions, still remain the most likely reason for reduction in all the surgeries.
The strength of our study is that this is the first Indian study looking at the immediate impact of ongoing pandemic and lockdown on delivery of surgical services. This may be used as a benchmark for identifying areas of potential strengthening of emergency surgical care delivery in India. Assessing workload and patient population has been recommended as a strategy while considering reopening and reorganisation of services by the guidelines published by Royal college of Surgeons.[25] Reserving dedicated healthcare facilities or dedicated teams within the existing facilities for emergency surgical and medical care was also documented in various studies.[7, 8] In a limited resource country like India, some health care facilities initially were reserved as dedicated COVID-19 facilities, however, this may not be sustainable solution. Strengthening government healthcare facilities to take the additional disease burden of COVID affected patients, reserving different teams for continuing the emergency surgical services in patients affected with COVID as well as other patients, could be explored.
The limitations of our study are relatively lesser number of representative health care institutions, compared to the size of our country. There is also a possibility of selection bias, as there are fewer private institutions in our study population. This being said, our study included hospitals from different cities, and may partly overcome the said limitations