In my opinion, one other contributory factor could be the lack of information on the part of the patient. There are usually unaware of the likely complications of surgery and hence fail to identify these and seek medical attention on time.
The limited resources in terms of staff and facilities also puts pressure on the healthcare personal and they are unable to give information to the patients.
Further studies may be necessary to ascertain the factors that contribute to the lack of after surgery care which consider the perspectives of the patient as well. However, in my opinion, finding ways to give comprehensive information on what to expect after surgery could contribute to reduction in deaths after surgery.