Index of deterioration of patients with mechanical prosthetic heart valve thrombosis

Abstract Background Mechanical prosthetic heart valves are known for their durability; however, a malfunctioning prosthesis can deteriorate rapidly to become a life-threatening complication. Our aim was to calculate a numerical index to express the rate of clinical deterioration of patients presenti...

Full description

Bibliographic Details
Main Authors: Ahmed Hassouna, Mohamed El-Ghanam, Hasan Moftah, Khaled Samir, Khaled Refaat
Format: Article
Language:English
Published: SpringerOpen 2020-09-01
Series:The Cardiothoracic Surgeon
Subjects:
Online Access:http://link.springer.com/article/10.1186/s43057-020-00033-0
_version_ 1818848088837586944
author Ahmed Hassouna
Mohamed El-Ghanam
Hasan Moftah
Khaled Samir
Khaled Refaat
author_facet Ahmed Hassouna
Mohamed El-Ghanam
Hasan Moftah
Khaled Samir
Khaled Refaat
author_sort Ahmed Hassouna
collection DOAJ
description Abstract Background Mechanical prosthetic heart valves are known for their durability; however, a malfunctioning prosthesis can deteriorate rapidly to become a life-threatening complication. Our aim was to calculate a numerical index to express the rate of clinical deterioration of patients presenting with a mechanical prosthetic heart valve thrombosis (PVT), called the index of deterioration (ID), and to evaluate its usefulness in predicting hospital outcomes. Results The median ID and range were (0.43, 0.03-3) NYHA class/day. A higher ID was significantly related to early development of PVT after native valve replacement, younger age, female gender, pregnancy, non-compliance to oral anticoagulation (OAC), low LVEF%, high mean pressure gradient across a mitral prosthesis, raised serum creatinine, and SGOT on admission (P < 0.05). Independent predictors were early presentation after native valve replacement, female gender, and non-compliance to OAC (P < 0.05). ID correlated positively with the need for urgent/emergency surgery, and the durations of cardiopulmonary bypass, postoperative mechanical ventilation, and positive inotropes. ID correlated negatively with the postoperative LVEF% (P < 0.05). Median ID of the 21 mortalities (0.75, 0.1-3) was > 2.1 times that of survivors (0.35: 0.03−2; P = 0.002), and the median ID of the 29 cases with postoperative complications (0.5, 0.1-1.5) was 2.5 times that of the 39 uneventful cases (0.2, 0.03-2; P = 0.011). The ID significantly predicted both mortality (odds ratio 3.87; 1.33-1.29; P = 0.013) and mortality and hospital complications (odds ratio 4.77; 1.49-15.2; P = 0.008). The respective discriminating abilities were AUC 0.734 (0.616-0.852; P = 0.002) and 0.724 (0.61-0.835; P < 0.001). EuroScore II correlated positively with ID (r = 0.571; P < 0.001) but showed better discriminative abilities. Conclusion The simple index of deterioration was useful in monitoring deterioration and predicting hospital progression and outcomes in patients presenting with PVT.
first_indexed 2024-12-19T06:11:47Z
format Article
id doaj.art-b33a427dc209404ebfc75582f1e5adac
institution Directory Open Access Journal
issn 2662-2203
language English
last_indexed 2024-12-19T06:11:47Z
publishDate 2020-09-01
publisher SpringerOpen
record_format Article
series The Cardiothoracic Surgeon
spelling doaj.art-b33a427dc209404ebfc75582f1e5adac2022-12-21T20:32:59ZengSpringerOpenThe Cardiothoracic Surgeon2662-22032020-09-0128111110.1186/s43057-020-00033-0Index of deterioration of patients with mechanical prosthetic heart valve thrombosisAhmed Hassouna0Mohamed El-Ghanam1Hasan Moftah2Khaled Samir3Khaled Refaat4Cardiothoracic Surgery Department, AinShams UniversityCardiothoracic Surgery Department, AinShams UniversityCardiothoracic Surgery Department, AinShams UniversityCardiothoracic Surgery Department, AinShams UniversityCardiothoracic Surgery Department, AinShams UniversityAbstract Background Mechanical prosthetic heart valves are known for their durability; however, a malfunctioning prosthesis can deteriorate rapidly to become a life-threatening complication. Our aim was to calculate a numerical index to express the rate of clinical deterioration of patients presenting with a mechanical prosthetic heart valve thrombosis (PVT), called the index of deterioration (ID), and to evaluate its usefulness in predicting hospital outcomes. Results The median ID and range were (0.43, 0.03-3) NYHA class/day. A higher ID was significantly related to early development of PVT after native valve replacement, younger age, female gender, pregnancy, non-compliance to oral anticoagulation (OAC), low LVEF%, high mean pressure gradient across a mitral prosthesis, raised serum creatinine, and SGOT on admission (P < 0.05). Independent predictors were early presentation after native valve replacement, female gender, and non-compliance to OAC (P < 0.05). ID correlated positively with the need for urgent/emergency surgery, and the durations of cardiopulmonary bypass, postoperative mechanical ventilation, and positive inotropes. ID correlated negatively with the postoperative LVEF% (P < 0.05). Median ID of the 21 mortalities (0.75, 0.1-3) was > 2.1 times that of survivors (0.35: 0.03−2; P = 0.002), and the median ID of the 29 cases with postoperative complications (0.5, 0.1-1.5) was 2.5 times that of the 39 uneventful cases (0.2, 0.03-2; P = 0.011). The ID significantly predicted both mortality (odds ratio 3.87; 1.33-1.29; P = 0.013) and mortality and hospital complications (odds ratio 4.77; 1.49-15.2; P = 0.008). The respective discriminating abilities were AUC 0.734 (0.616-0.852; P = 0.002) and 0.724 (0.61-0.835; P < 0.001). EuroScore II correlated positively with ID (r = 0.571; P < 0.001) but showed better discriminative abilities. Conclusion The simple index of deterioration was useful in monitoring deterioration and predicting hospital progression and outcomes in patients presenting with PVT.http://link.springer.com/article/10.1186/s43057-020-00033-0Prosthetic valve malfunctionProsthetic valve thrombosisMechanical valve thrombosisScoring systemsEuroScore II
spellingShingle Ahmed Hassouna
Mohamed El-Ghanam
Hasan Moftah
Khaled Samir
Khaled Refaat
Index of deterioration of patients with mechanical prosthetic heart valve thrombosis
The Cardiothoracic Surgeon
Prosthetic valve malfunction
Prosthetic valve thrombosis
Mechanical valve thrombosis
Scoring systems
EuroScore II
title Index of deterioration of patients with mechanical prosthetic heart valve thrombosis
title_full Index of deterioration of patients with mechanical prosthetic heart valve thrombosis
title_fullStr Index of deterioration of patients with mechanical prosthetic heart valve thrombosis
title_full_unstemmed Index of deterioration of patients with mechanical prosthetic heart valve thrombosis
title_short Index of deterioration of patients with mechanical prosthetic heart valve thrombosis
title_sort index of deterioration of patients with mechanical prosthetic heart valve thrombosis
topic Prosthetic valve malfunction
Prosthetic valve thrombosis
Mechanical valve thrombosis
Scoring systems
EuroScore II
url http://link.springer.com/article/10.1186/s43057-020-00033-0
work_keys_str_mv AT ahmedhassouna indexofdeteriorationofpatientswithmechanicalprostheticheartvalvethrombosis
AT mohamedelghanam indexofdeteriorationofpatientswithmechanicalprostheticheartvalvethrombosis
AT hasanmoftah indexofdeteriorationofpatientswithmechanicalprostheticheartvalvethrombosis
AT khaledsamir indexofdeteriorationofpatientswithmechanicalprostheticheartvalvethrombosis
AT khaledrefaat indexofdeteriorationofpatientswithmechanicalprostheticheartvalvethrombosis