Volume 97, Issue 6 pp. E778-E788
ORIGINAL STUDIES

A systematic review and meta-analysis of impact of baseline thrombocytopenia on cardiovascular outcomes and mortality in patients undergoing percutaneous coronary intervention

Muhammad J. Ahsan MD

Corresponding Author

Muhammad J. Ahsan MD

Department of Internal Medicine, Creighton University Medical Center, Omaha, Nebraska, USA

Correspondence

Muhammad J. Ahsan, Chief Medical Resident, Department of Internal Medicine, Creighton University Medical Center, 7500 Mercy road, Omaha, Nebraska 68124, USA.

Email: [email protected]

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Noman Lateef MD

Noman Lateef MD

Department of Internal Medicine, Creighton University Medical Center, Omaha, Nebraska, USA

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Azka Latif MD

Azka Latif MD

Department of Internal Medicine, Creighton University Medical Center, Omaha, Nebraska, USA

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Saad U. Malik MD

Saad U. Malik MD

Department of Internal Medicine, University of Arizona, Tucson, Arizona, USA

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Syeda S. Batool MD

Syeda S. Batool MD

Department of Internal Medicine, University of Alabama, Huntsville, Alabama, USA

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Hafiz M. Fazeel MD

Hafiz M. Fazeel MD

Department of Internal Medicine, Services Institute of Medical Sciences, Lahore, Pakistan

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Mohammad Z. Ahsan MBBS

Mohammad Z. Ahsan MBBS

Department of Internal Medicine, Fatima Memorial Hospital, Lahore, Pakistan

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Zaheer Faizi MD

Zaheer Faizi MD

Department of Surgery, Crozer Chester Medical Center, Upland, Pennsylvania, USA

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Abhishek Thandra MD

Abhishek Thandra MD

Division of Cardiovascular Medicine, Creighton University Medical Center, Omaha, Nebraska, USA

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Mohsin Mirza MBBS

Mohsin Mirza MBBS

Department of Internal Medicine, Creighton University Medical Center, Omaha, Nebraska, USA

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Amjad Kabach MD, FACC

Amjad Kabach MD, FACC

Division of Cardiovascular Medicine, Creighton University Medical Center, Omaha, Nebraska, USA

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Michael Del Core MD, FACC

Michael Del Core MD, FACC

Division of Cardiovascular Medicine, Creighton University Medical Center, Omaha, Nebraska, USA

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First published: 24 November 2020
Citations: 4

Abstract

Background

Thrombocytopenia (TP) is associated with higher incidence of bleeding in the setting of percutaneous coronary intervention (PCI) leading to increased morbidity and mortality. Herein, we report a meta-analysis evaluating the effects of baseline thrombocytopenia (bTP) on cardiovascular outcomes in patients undergoing PCI.

Methods

Literature search was performed using PubMed, Embase, Cochrane library and clinicaltrials.gov from inception till October 2019. Patients were divided into two groups: Patients with (a) no Thrombocytopenia (nTP) (b) bTP before PCI. Primary endpoints were in-hospital, and all-cause mortality rates at the longest follow-up. The main summary estimate was random effects risk ratio (RR) with 95% confidence intervals (CIs).

Results

A total of 6,51,543 patients from 10 retrospective studies were included. There was increased in-hospital all-cause mortality (RR 2.58 [1.7–3.8], p < .001) and bleeding (RR 2.37 [1.41–3.98], p < .005), in the bTP group compared to the nTP group. There was no difference for in-hopsital major adverse cardiovascular outcomes (MACE) (RR 1.38 [0.94–2.0], p < .10), post-PCI MI (RR 1.17 [0.9–1.5], p = .19) and TVR (RR 1.65 [0.8–3.6], p = .21), respectively. Outcomes at longest follow-up showed increased incidence of all-cause mortality (RR 1.86 [1.2–2.9], p < .006) and bleeding (RR 1.72 [1.1–2.9], p = .04) in bTP group, while there was no significant difference for post-PCI MI (RR 1.07 [0.91–1.3], p = .42), MACE (RR 1.86 [0.69–1.8], p = .68) and TVR (RR 1.1 [0.9–1.2], p = .93) between both groups.

Conclusions

bTP in patients undergoing PCI is associated with increased mortality and predicts risk of bleeding.

CONFLICT OF INTEREST

The authors declare no potential conflict of interest.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study is openly available. All data was driven from the 10 studies included for the analysis.

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