Factors influencing nonadministration of thrombolytic therapy in early arrival strokes in a university hospital in Hyderabad, India

Stumbling Blocks to Stroke Thrombolysis: An Indian Perspective

Background and purpose

Stroke is a leading cause of morbidity and mortality worldwide. Developing countries, however, still lag behind in providing timely thrombolytic therapy (TLT) to many eligible patients owing to various reasons. This study aims to identify such factors.

Materials and methods

This was a descriptive observational study undertaken over a period of 18 months at a tertiary care teaching hospital and included 252 acute ischemic stroke patients of which 200 were not thrombolyzed. The reasons for nonthrombolysis were recorded and analyzed.

Results

The study included 252 acute ischemic stroke patients of which only 20% were thrombolyzed. Of the 200 nonthrombolyzed patients, 55% arrived out of the window period while patient-related factors were the second biggest factor preventing thrombolysis. Hospital factors at 14% and financial constraints at 4.5% contributed significantly. Delayed consent emerged as an important factor making 6% of the delays.

Conclusion

Stroke thrombolysis still faces various pre- and intrahospital barriers in India. There is an urgent need to improve infrastructure and organizational streamlining to enable eligible patients to receive prompt treatment.

How to cite this article

Shah A, Diwan A. Stumbling Blocks to Stroke Thrombolysis: An Indian Perspective. Indian J Crit Care Med 2023;27(9):616-619.

Effect of prehospital workflow optimization on treatment delays and clinical outcomes in acute ischemic stroke: A systematic review and meta-analysis

BACKGROUND

The prehospital phase is critical in ensuring that stroke treatment is delivered quickly and is a major source of time delay. This study sought to identify and examine prehospital stroke workflow optimizations (PSWOs) and their impact on improving health systems, reperfusion rates, treatment delays, and clinical outcomes.

METHODS

The authors conducted a systematic literature review and meta-analysis by extracting data from several research databases (PubMed, Cochrane, Medline, and Embase) published since 2005. We used appropriate key search terms to identify clinical studies concerning prehospital workflow optimization, following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines.

RESULTS

The authors identified 27 articles that looked at the impact of prehospital workflow optimizations on time and treatment parameters; 26 were included in the meta-analysis. The PSWO were subgrouped into three categories: improved intravenous thrombolysis (IVT) triage, large-vessel occlusion (LVO) bypass, and mobile stroke unit (MSU). The salient findings are as follows: improved IVT triage led to significantly improved rates of IVT (relative risk [RR] = 1.80, 95% confidence interval [CI] = 1.18 to 2.75); however, MSU did not (RR = 1.22, 95% CI = 0.98 to 1.52). Improved IVT triage (standard mean difference [SMD] = -0.82, 95% CI = -1.32 to -0.32), LVO bypass (SMD = -0.80, 95% CI = -1.13 to -0.47), and MSU (SMD = -0.87, 95% CI = -1.57 to -0.17) were found to significantly reduce door-to-needle time for IVT. MSU was found to significantly reduce call-to-needle (SMD = -1.41, 95% CI = -1.94 to -0.88) and onset-to-needle (SMD = -1.15, 95% CI = -1.74 to -0.56) times for IVT. MSU additionally demonstrated significant reduction in door-to-perfusion (SMD = -0.72, 95% CI = -1.32 to -0.12) as well as call-to-perfusion (SMD = -0.73, 95% CI = -1.08 to -0.38) times for EVT. Finally, PSWO did not demonstrate significant improvements in rates of good functional outcome (RR = 1.04, 95% CI = 0.97 to 1.12) or mortality at 90 days (RR = 1.00, 95% CI = 0.76 to 1.31).

CONCLUSIONS

This systematic review and meta-analysis found that PSWO significantly improves several time metrics related to stroke treatment leading to improvement in IVT reperfusion rates. Thus, the implementation of these measures in stroke networks is a promising avenue to improve an often-neglected aspect of the stroke response. However, the limited available data suggest functional outcomes and mortality are not significantly improved by PSWO; hence, further studies and improvement strategies vis-à-vis PSWOs are warranted.

Quality Indicators of Intravenous Thrombolysis from North India

Background:

Data on intravenous (IV) thrombolysis using tissue plasminogen activator (tPA) are limited from low- and middle-income countries. We aimed to assess the quality indicators of IV thrombolysis in our stroke unit.

Methods:

All stroke patients admitted in our hospital from October 2008 to April 2017 were included in this study. Data were collected prospectively by trained research staff in a detailed case record form. Outcome was assessed using modified Rankin Scale (mRS, 0–1 good outcome).

Results:

Of the total 4720 stroke patients seen, 944 (20%) came within window period (<4.5 h). Of these, 214 (4.5%) were eligible for thrombolysis and 170 (3.6%) were thrombolysed, relatives of 23 (23/214, 10.7%) patients denied consent, and 21 (9.8%) patients could not afford tPA. The mean age of thrombolysed patients was 58.4 (range 19–95) years. Median NIHSS at admission was 12 (interquartile range 2–24). Average onset-to-door (O-D) time was 76.8 (5–219) min, door-to-examination (D-E) time was 17.8 (5–105) min, door-to-CT (D-CT) time was 48 (1–205) min, and door-to-needle (D-N) time was 90 (20–285) min. At 6 months, 110 (64.7%) patients were contactable and 82 (74.5%) patients had good outcome (mRS 0–1).

Conclusion:

Thrombolysis rate has steadily increased at the center without undue adverse effects even in the elderly. D-E and D-CT times have reduced, but O-D and D-N times need further improvement. More patients could be thrombolysed if the cost of tPA is reduced and the consent process is waived.