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Research Article | Volume 11 Issue 5 (May, 2025) | Pages 361 - 366
Clinical Profile and Outcomes of Patients with Ischemic Stroke: A Hospital-Based Prospective Study
 ,
 ,
1
Junior Resident, Department of General Medicine, Mahatma Gandhi Mission's Medical College & Hospital, Kamothe, Navi Mumbai, Maharashtra, India
2
Senior Resident, Department of General Medicine, Mahatma Gandhi Mission's Medical College & Hospital, Kamothe, Navi Mumbai, Maharashtra, India
3
Professor, Department of General Medicine, Mahatma Gandhi Mission's Medical College & Hospital, Kamothe, Navi Mumbai, Maharashtra, India
Under a Creative Commons license
Open Access
Received
April 5, 2025
Revised
April 25, 2025
Accepted
May 8, 2025
Published
May 17, 2025
Abstract

Background: Ischemic stroke is a major public health concern globally, with a disproportionately high burden in developing countries like India. It accounts for significant morbidity, mortality, and socioeconomic loss, with modifiable risk factors playing a crucial role in its occurrence and outcome. Methods: This prospective, observational study included 100 consecutive adult patients with radiologically confirmed ischemic stroke admitted to a tertiary care hospital in Navi Mumbai over 18 months. Baseline demographic, clinical, and risk factor data were collected. Stroke severity was assessed using the NIHSS at admission, and patients were followed for clinical outcomes (discharge or death). Data were analyzed using IBM SPSS Statistics, with chi-square tests applied to assess associations. Results: The mean age was 60.08 ± 12.95 years; 71% were male. Most patients were in the 51–70 year age group. Hypertension (54%), smoking (35%), diabetes (29%), and alcohol consumption (32%) were the most prevalent risk factors. Motor deficits (95%), speech involvement (76%), and cranial nerve palsies (74%) were the most common clinical features. Most strokes were of moderate severity (mean NIHSS 10.3). Mortality was 30%, with higher NIHSS scores, altered sensorium, cranial nerve involvement, and cerebellar signs significantly associated with death (p < 0.05), whereas traditional risk factors were not. Conclusion: The study underscores the predominance of modifiable risk factors among ischemic stroke patients and highlights the importance of early neurological assessment. Outcomes are more closely linked to severity and clinical features at presentation than to baseline vascular risk factors. These findings emphasize the need for targeted preventive strategies and timely intervention in stroke care.

Keywords
INTRODUCTION

Stroke remains a major cause of morbidity and mortality worldwide, representing a significant public health challenge, especially in low- and middle-income countries. According to the Global Burden of Disease Study, stroke accounted for approximately 6.5 million deaths and 113 million disability-adjusted life years (DALY) globally in 2021, with over two-thirds of these events occurring in developing nations [1]. In India, the incidence of stroke ranges from 116 to 163 per 100,000 population, and it is responsible for about 3.5% of all DALYs, with ischemic stroke constituting 80-85% of all cases [2,3]. The high burden of stroke not only results in substantial healthcare costs but also has profound socioeconomic consequences, highlighting the need for effective prevention and management strategies [4]. Ischemic stroke, caused by the sudden occlusion of cerebral arteries, is often associated with modifiable risk factors such as hypertension, diabetes mellitus, dyslipidemia, smoking, and alcohol use, as well as non-modifiable factors like age and sex [5,6]. Understanding the clinical profile and distribution of risk factors among ischemic stroke patients is crucial for early identification of high-risk individuals and for tailoring preventive interventions. Variations in risk factor prevalence and clinical presentation can be influenced by geographic, demographic, and sociocultural factors, necessitating region-specific studies [7].

 

Despite advances in acute stroke management and the growing availability of thrombolytic therapy, outcomes remain suboptimal in many resource-limited settings due to delays in presentation, limited access to specialized care, and variability in risk factor control [2,8]. Hospital-based studies are essential to identify gaps in stroke care, document prevailing risk factors, and describe clinical outcomes. This information can serve as a foundation for the development of targeted public health strategies and improvement in patient management pathways. The present study aims to evaluate the clinical characteristics, risk factors, and outcomes of patients admitted with ischemic stroke in a tertiary care hospital in Navi Mumbai.

MATERIALS AND METHODS

This prospective, observational study was conducted in the Department of General Medicine at Mahatma Gandhi Mission’s Medical College, Kamothe, Navi Mumbai, over an 18-month period from July 2021 to December 2022. The study included 100 consecutive patients above 18 years of age who were admitted with a clinical diagnosis of ischemic stroke, confirmed by radiological imaging such as computed tomography (CT) or magnetic resonance imaging (MRI) of the brain. Patients with intracranial hemorrhage, neurological deficits due to non-vascular causes (such as brain tumors or metastasis), or those below 18 years of age were excluded from the study. Only patients and their relatives who provided informed consent were enrolled.

For each participant, demographic information, including age, sex was recorded and detailed history was obtained to document the presence of known vascular risk factors such as hypertension, diabetes mellitus, smoking, alcohol consumption, and any prior history of cerebrovascular accident or cardiovascular disease. Physical examination included assessment of vital signs, and general systemic examination. Stroke severity was assessed at admission using the National Institutes of Health Stroke Scale (NIHSS). Blood pressure was measured in a supine position in both arms, with two readings taken at five-minute intervals; the average was recorded. Pulse rate and oxygen saturation were also noted. All patients were followed throughout their hospital stay to record clinical features, complications, and outcomes, including discharge or death.

 

Data were entered in a pre-designed structured proforma and subsequently analyzed using IBM SPSS Statistics version 25. Descriptive statistics were reported as mean and standard deviation for continuous variables, and as frequencies and percentages for categorical variables. Associations between categorical variables were tested using the Chi-square test, with a p-value of less than 0.05 considered statistically significant. Data were visually presented using bar charts, pie charts, and doughnut diagrams where appropriate. Ethical clearance for the study was obtained from the Institutional Ethics Committee prior to initiation. All patient information was kept confidential, and the study imposed no additional risk or cost to participants beyond standard care.

RESULTS

The present study was conducted on 100 consecutive patients admitted with ischemic stroke at Mahatma Gandhi Mission’s Medical College and Hospital, Navi Mumbai. The results are presented below in terms of demographic characteristics, clinical profile, risk factors, and outcomes. The data have been systematically tabulated and analyzed to highlight the important findings and their statistical significance. The baseline demographic characteristics of the study population are summarized in Table 1. The mean age of patients admitted with ischemic stroke was 60.08 years (SD ± 12.95), with the majority falling in the 51-60 years (32.0%) and 61-70 years (28.0%) age groups. Only a small proportion of patients were under 40 years of age (6.0%). Males constituted a significant majority of the cohort, accounting for 71% of cases, while females comprised 29%.

 

Table 1. Baseline Demographic Characteristics of Ischemic Stroke Patients

Variable

Frequency

Percentage

Age (in years)

<40

6

6.0%

41-50

16

16.0%

51-60

32

32.0%

61-70

28

28.0%

>70

18

18.0%

Mean ± SD

60.08 ± 12.95

Gender

Male

71

71.0%

Female

29

29.0%

 

Table 2 outlines the distribution of clinical characteristics, risk factors, and outcomes among patients with ischemic stroke. The majority of patients had left-sided lesions (53.0%), while right-sided and bilateral lesions were observed in 38.0% and 9.0% of cases, respectively. Most strokes were of moderate severity according to the NIHSS, with 89% of patients having a score between 5 and 15; severe strokes (NIHSS 21–42) were seen in only 4% of the cohort. Hypertension emerged as the most prevalent risk factor, present in 54% of patients, followed by smoking (35%), alcohol consumption (32%), and diabetes (29%). Notably, 7% of patients had no identifiable risk factors. Clinically, motor deficits were the most common presenting feature (95%), followed by speech disturbances (76%) and cranial nerve involvement (74%). Altered sensorium, seizures, and cerebellar signs were reported in 26%, 11%, and 13% of cases, respectively. Regarding outcomes, 70% of the patients were discharged, while the mortality rate in this cohort was 30%. These findings highlight the predominance of modifiable risk factors and motor deficits among ischemic stroke patients, as well as the significant burden of morbidity and mortality associated with the condition.

 

Table 2. Distribution of Clinical Characteristics, Risk Factors, and Outcomes among Ischemic Stroke Patients

Variable

Frequency

Percentage

Side of lesion

Left

53

53.0%

Right

38

38.0%

Bilateral

9

9.0%

NIHSS

<4 (Minor)

1

1.0%

5-15 (Moderate)

89

89.0%

16-20 (Moderate to severe)

6

6.0%

21-42 (Severe)

4

4.0%

Risk factors

Hypertension

54

54.0%

Smoking

35

35.0%

Alcohol

32

32.0%

Diabetes

29

29.0%

Past history of CVA

12

12.0%

Others

7

7.0%

No risk factors

7

7.0%

Clinical feature

Motor

95

95.0%

Speech

76

76.0%

Cranial Nerves

74

74.0%

Altered Sensorium

26

26.0%

Seizures

11

11.0%

Cerebellar signs

13

13.0%

Outcome

Discharged

70

70.0%

Death

30

30.0%

 

Table 3 presents the association of demographic, clinical, and risk factor variables with patient outcomes in ischemic stroke, analyzed using the chi-square test. Among the demographic variables, age, and gender, showed no statistically significant association with outcome, as indicated by p-values well above the conventional threshold of 0.05. In contrast, stroke severity measured by the NIHSS demonstrated a highly significant association with mortality (p = 0.002), with higher NIHSS scores corresponding to worse outcomes—patients with severe strokes (NIHSS 21–42) had a 100% mortality rate, while those with minor or moderate strokes had better discharge rates. Regarding risk factors, none—including hypertension, smoking, alcohol use, diabetes, past history of cerebrovascular accident, or having no risk factors—were significantly associated with mortality in this cohort. However, several clinical features were strongly correlated with outcomes. The presence of speech disturbances (p < 0.001), cranial nerve involvement (p < 0.001), altered sensorium (p < 0.001), and cerebellar signs (p = 0.008) were all significantly associated with higher mortality rates. In particular, patients presenting with altered sensorium had an 81% mortality rate, while those with cranial nerve involvement and speech disturbances also had notably higher proportions of death. These findings suggest that clinical features at presentation, especially those indicating severe neurological impairment, are important predictors of poor outcomes in ischemic stroke patients, whereas traditional vascular risk factors were not significantly linked to mortality in this study population.

 

Table 3. Association of Demographic, Clinical, and Risk Factor Variables with Outcomes in Ischemic Stroke Patients

Variable

Discharged

Death

Total

Chi-square

P-value

n

%

n

%

n

Age (years)

<40

6

100.0%

0

0.0%

6

2.979

0.564

41-50

11

68.8%

5

31.3%

16

51-60

21

65.6%

11

34.4%

32

61-70

19

67.9%

9

32.1%

28

>70

13

72.2%

5

27.8%

18

Gender

Male

52

73.2%

19

26.8%

71

1.223

0.269

Female

18

62.1%

11

37.9%

29

NIHSS

<4 (Minor)

1

100%

0

0

1

19.627

0.002

5-15 (Moderate)

68

76.40%

21

23.60%

89

16-20 (Moderate to severe)

1

16.67%

5

83.33%

6

21-42 (Severe)

0

0.0%

4

100%

4

Risk factors

Hypertension

39

72.2%

15

28%

54

0.276

0.599

Smoking

20

69.0%

9

31%

29

0.021

0.885

Alcohol

22

68.8%

10

31%

32

0.035

0.852

Diabetes

27

77.1%

8

23%

35

1.308

0.253

Past history of CVA

8

80.0%

2

20%

10

0.529

0.467

Others

4

57.1%

3

43%

7

0.593

0.442

No risk factors

3

42.9%

4

57%

7

2.641

0.104

Clinical feature

Motor

65

68.4%

30

32%

95

2.256

0.133

Speech

46

60.5%

30

39%

76

13.534

0.000

Cranial Nerves

44

59.5%

30

41%

74

15.058

0.000

Altered Sensorium

5

19.2%

21

81%

26

43.124

0.000

Seizures

7

63.6%

4

36%

11

0.238

0.625

Cerebellar signs

5

38.5%

8

62%

13

7.078

0.008

 

Table 4 presents a comparison of vital signs and NIHSS scores between ischemic stroke patients who were discharged and those who died during hospitalization. The mean pulse rate, systolic blood pressure (SBP), diastolic blood pressure (DBP), respiratory rate (RR), and oxygen saturation (SpO₂) were marginally higher in the death group compared to the discharged group; however, none of these differences were statistically significant (p > 0.05), indicating that these vitals at admission were not predictive of in-hospital mortality. In contrast, the NIHSS score, which assesses stroke severity, was significantly higher in patients who died (mean 14.50 ± 4.80) compared to those who were discharged (mean 8.50 ± 1.86), with a highly significant p-value (< 0.001). This finding underscore that higher NIHSS scores, indicative of more severe strokes, are strongly associated with mortality, while admission vital parameters did not show a statistically significant impact on outcomes in this study cohort.

 

Table 4. Comparison of vitals and NIHSS according to outcome

Variable

Outcome

N

Mean

SD

SEM

t-stat

p-value

Pulse

Discharged

70

89.89

8.36

1.00

-0.74

0.46

Death

30

91.20

7.48

1.36

-0.78

0.44

SBP

Discharged

70

126.37

12.90

1.54

-1.25

0.22

Death

30

130.40

18.54

3.39

-1.08

0.29

DBP

Discharged

70

83.83

8.66

1.03

-1.29

0.20

Death

30

86.80

14.02

2.56

-1.08

0.29

RR

Discharged

70

18.74

2.83

0.34

-1.32

0.19

Death

30

19.67

3.93

0.72

-1.16

0.25

SPO2

Discharged

70

94.64

7.17

0.86

1.05

0.30

Death

30

92.93

8.20

1.50

0.99

0.33

NIHSS

Discharged

70

8.50

1.86

0.22

-9.05

<.001

Death

30

14.50

4.80

0.88

-6.64

<.001

 

In summary, the results of this study highlight key clinical and demographic features among patients with ischemic stroke at our center. The majority of patients were older males, with hypertension, smoking, and diabetes emerging as the most prevalent risk factors. Most strokes were of moderate severity, with motor and speech deficits being the most common clinical presentations. Although traditional vascular risk factors were not significantly associated with mortality in this cohort, indicators of severe neurological impairment—such as high NIHSS scores, altered sensorium, cranial nerve involvement, and cerebellar signs—were strongly linked to poorer outcomes. These findings underscore the importance of comprehensive neurological assessment at presentation in predicting prognosis and guiding management in ischemic stroke patients.

DISCUSSION

The present study evaluated the clinical profile and outcomes of 100 patients with ischemic stroke, with a detailed analysis of demographic patterns, risk factors, clinical features, and prognosis. The mean age of the study population was 60.08 years, with most patients falling in the 51–70 years age group. This age profile is consistent with the rising burden of stroke in aging populations globally and in India [1,3,7]. Our observed mean age was older than that reported in some Indian studies such as Magudeshwaran et al. [9], Mugunthan et al.[10], and Yamini et al. [11], but slightly younger than in the study by Abdul Gafoor et al. [12]. Males were predominantly affected (71%), with a male-to-female ratio of 2.44:1, aligning with previous Indian reports [9–12]. The greater male prevalence, especially at younger ages, may reflect earlier exposure to risk factors among men and protective effects of estrogen in women before menopause [5].

 

Hypertension was the most common modifiable risk factor in this cohort (54%), comparable to prior studies from India and globally [6,13]. The prevalence of hypertension, along with other vascular risk factors, underscores the major contribution of modifiable factors to stroke incidence, as highlighted in the INTERSTROKE and GBD studies [9,10]. Smoking (35%) and alcohol consumption (32%) were also prevalent, in line with both national and international findings [10,14,15]. Diabetes mellitus was seen in 29% of patients, a higher proportion than reported in Western studies, reflecting the growing epidemic of diabetes in South Asia [14,16]. Previous history of stroke was identified in 12% of patients [17]. Clinically, motor weakness was the most common presenting symptom (95%), similar to the findings in other Indian and Western cohorts [14]. Speech disturbance (76%) and cranial nerve involvement (74%) were also frequent. Other presenting features included altered sensorium (26%), seizures (11%), and cerebellar signs (13%). These findings are consistent with reports highlighting the heterogeneous and multifocal nature of neurological deficits in ischemic stroke [5,8]. The mean NIHSS score at presentation was 10.3, suggesting that most strokes were of moderate severity, and comparable to recent Indian data [11].

 

Outcome analysis revealed that 70% of patients were discharged, while 30% died during hospitalization—a finding that reflects the significant morbidity and mortality associated with acute stroke in resource-limited settings [3]. Statistical analysis demonstrated that traditional vascular risk factors (hypertension, diabetes, smoking, alcohol, past CVA) were not significantly associated with in-hospital mortality. In contrast, clinical features at presentation—particularly stroke severity (NIHSS), speech disturbance, cranial nerve involvement, altered sensorium, and cerebellar signs—showed significant associations with poor outcomes. This highlights the importance of comprehensive neurological assessment at presentation in predicting prognosis, as also emphasized in global stroke care guidelines [4,5]. Overall, this study underscores the persistent burden of modifiable risk factors among ischemic stroke patients in India, paralleling global trends [1,3,6]. The findings reinforce the need for effective risk factor modification and timely neurological evaluation to improve stroke outcomes, especially in low- and middle-income settings [2,4,8].

CONCLUSION

In conclusion, this study highlights the predominance of modifiable risk factors such as hypertension, smoking, and diabetes among ischemic stroke patients. While traditional risk factors were not significantly associated with in-hospital mortality, clinical features indicating neurological severity at presentation were strong predictors of poor outcomes. Early identification and targeted management of high-risk patients remain crucial for improving stroke prognosis.

 

Conflict of Interest: The authors declare that there is no conflict of interest regarding the publication of this study.

Funding: This research received no external funding.

REFERENCES
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