Topic 1 : Understanding dialysis outcome patterns in India through a nationwide study
Introduction
India has amongst the highest number of patients receiving chronic dialysis, globally estimated at around 1,75,000 people in 2018. On a daily basis, the number of patients on dialysis has been increasing. The authors notch this up to the launch of the National Dialysis Service in 2016 to improve access, and ongoing efforts to develop affordable dialysis systems, all underlined by the rising incidence of end stage renal disease in the country.
Dialysis
- Dialysis is a procedure that removes waste and fluids from the body that the kidneys are not able to remove.
- Dialysis also aims to keep the body in balance by correcting the levels of various toxic substances in the blood.
- Without dialysis, all patients with complete kidney failure would die from the build-up of toxins in the bloodstream.
Types of Dialysis: There are two main types of dialysis:
- Hemodialysis (HD): In HD, the blood is filtered through a machine that acts like an artificial kidney and is returned back into the body. It is usually needed about 3 times per week, with each episode taking about 3-4 hours.
- Peritoneal dialysis (PD, commonly known as water dialysis): In PD, the blood is cleaned without being removed from the body. The abdomen sac (lining) acts as a natural filter. A solution (mainly made up of salts and sugars) is injected into the abdomen that encourages filtration such that the waste is transferred from the blood to the solution.
Mortality rate in India
- After accounting for multi-level factors, the estimated 180-day survival ranged between 83% and 97%.
- The mortality rate in patients attending rural centres was 32% higher than those at urban centres.
- Among the patient characteristics associated with mortality were: catheter-based vascular access which had a higher mortality compared to access via an arteriovenous fistula or graft.
- Financial support for dialysis treatment through a government panel scheme or private insurance had a lower mortality compared to out-of-pocket payment.
- The presence of diabetes was associated with a higher mortality rate.
- By including centre-level factors in the analysis; for instance, staffing, processes of care and patient volume, they found it reduced the variability in survival across dialysis centres by 31%.
Suggestions
- As India continues to widen dialysis access, ongoing quality improvement programs will be an important part of ensuring that patients experience the best-possible outcomes at the point of care.
- While overall improvements in health infrastructure and care are essential to keep pace with the demand, the authors of the study underline the need for a collaborative quality improvement system across the country.
- Alongside establishing national standards for dialysis outcomes in India, it is important to understand the multilevel effects of centre- and patient-level characteristics on these outcomes.
Conclusion
It has been shown, in nephrology and other medical specialities, that clinical practice patterns and patient outcomes vary substantially between centres. Therefore, establishing national benchmarks for dialysis outcomes against which the dialysis centres’ performances and changes over time can be compared is essential to drive this.
Topic 2 : The MIRV leap that fires up India’s nuclear deterrence
Context
As a China-specific missile, the successful test of the Agni-5 MIRV missile enables India
to reach a milestone.
Agni-5 missile
- The Agni-5 ballistic missile test dubbed the “Divyastra”, that was conducted by the Defence Research and Development Organisation (DRDO), is strategically consequential.
- With a range of over 5,000 kilometres, the Agni-5 is the longest-range missile India has tested so far.
- But it is not simply its range but, equally, its potency which represents a watershed moment for India’s nuclear deterrent.
- The potency of India’s nuclear deterrent is enhanced because this variant is integrated with Multiple Independently Targetable Re-entry Vehicles (MIRVs).
MIRV technology
- MIRV technology originated in the United States, with the deployment of a MIRVed Intercontinental Ballistic Missile (ICBM) in 1970.
- MIRV allows a single missile to carry multiple warheads (3-4), each capable of targeting different locations independently.
- MIRV technology enhances the missile’s effectiveness by increasing the number of potential targets it can engage.
- MIRVs can be launched from both land-based platforms and sea-based platforms, such as submarines, expanding their operational flexibility and range.
Strategic Significance and Challenges
- MIRVs were initially designed to enhance offensive capabilities rather than to defeat ballistic missile defences.
- Their ability to deploy multiple warheads independently makes them significantly more challenging to defend against compared to traditional missiles.
- It puts China on notice — that India is preparing itself to counter the advances Beijing has made with its missile and missile defence programmes.
- Deploying MIRV technology presents complex challenges, including the miniaturisation of warheads, the development of advanced guidance systems, and ensuring the reliability of individual re-entry vehicles.
- Addressing these challenges is crucial for maintaining the effectiveness and reliability of MIRV systems in strategic operations.
Conclusion
- In the modern era, MIRV technology remains a crucial component of the strategic nuclear forces of several countries, underscoring the ongoing importance of nuclear deterrence and the complex challenges associated with nuclear disarmament and non-proliferation efforts.
- The development and deployment of the Agni-5 are crucial for India’s strategic autonomy and its position as a regional and emerging global power.
- It contributes to the credibility of India’s “No First Use” nuclear policy by enhancing its second-strike capability.
- The Agni-5’s development reflects India’s advancements in missile technology and its ability to independently develop sophisticated strategic weapons systems.