Abnormal Ventilatory Patterns in Mitral Stenosis

Cosby, Richard S.; Stowell, Ellery C.; Hartwig, W; Mayo, Mary

doi:10.1378/chest.29.6.633

Cited by 9 publications

(7 citation statements)

References 12 publications

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“…There is no striking relationship between cardiac defect and respiratory abnormality and the closest being the inverse one between vital capacity and PASP after PTMC. 5 Maximum breathing capacity correlated poorly with mean pulmonary artery pressure and explanation in favour of this that many of these patients were on prolonged bed rest and thus induced muscular fatigue probably introduced an independent variable factor in the reduction of maximum breathing capacity.…”

Section: Discussionmentioning

confidence: 99%

“…FVC and FEV 1 was expressed as percentage predicted and PEF expressed as liter/min. 5,6,7,8 Only mitral stenosis patients with favorable valve morphology (Wilkins score ≤10) were selected for PTMC; PTMC was done by a transseptal antegrade technique using the Inoue balloon.…”

Section: Methodsmentioning

confidence: 99%

“…The major act of affray comes into account from several studies are reduction in pulmonary compliance ventilation-perfusion mismatch, reduction in diffusion capacity, increased "pulmonary capillary blood volume" and hyperventilation in exercise in relation to the oxygen uptake. 2,4,5 Majority of ventilatory functions impairment caused by hemodynamic alteration are mainly reversible. 2 In the present study, the pulmonary functions and echocardiography were done before and after PTMC in an order to observe the effect of PTMC on lung function test in severe mitral stenosis patients.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Successful Percutaneous Transvenous Mitral Commissurotomy on Pulmonary Function

Khan¹,

Islam

Majumder

2017

Bangladesh Heart J

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Successful Percutaneous Transvenous Mitral Commissurotomy on Pulmonary Function

Khan¹,

Islam

Majumder

2017

Bangladesh Heart J

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“…Palmer et al [5] observed a poor correlation between pre-operative VC and the severity of dyspnoea in patients with mitral stenosis. Cosby et al [10] reported that the degree of dyspnoea showed a closer relation to the height of pulmonary artery pressure and to VC, than to maximum breathing capacity in the pure mitral stenosis patients [10]. Dogliotti et al [11] reported reduction of VC, RV, TLC and maximum breathing capacity in mitral stenosis patients with more severe disease, according to the mitral valve area measured at operation.…”

Section: Introductionmentioning

confidence: 99%

Lung Function and Severity of Mitral Stenosis

Nour¹,

H²,

Yousof³

1999

Med Princ Pract

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Objective: To correlate the degree of severity in patients with rheumatic mitral stenosis to pulmonary function data and to their respiratory symptoms. Methods: Pulmonary function and the MCR questionnaire on respiratory symptoms were made in 43 patients with simple mitral stenosis (SMS), and 79 patients with advanced mitral stenosis scheduled for valve replacement surgery (MVR). Results: All the patients in the two groups had restrictive and obstructive patterns. They had reduced forced vital capacity (FVC), forced expiratory volume in 1 s (FEV₁), peak expiratory flow rate, maximal flow after exhalation of 75, 50 and 25% of FVC and single-breath carbon monoxide diffusing capacity (DL_CO) and increased total airway resistance, resistance during expiration, and residual volume (RV). The SMS group tended toward more normal values. The MVR group had lower values for all the parameters, specially FVC, FEV₁, DL_CO and higher RV. The MVR group had a significantly higher prevalence of cough, phlegm and acute chest illness than the SMS group. Conclusion: The study confirmed the restrictive and obstructive pattern of pulmonary dysfunction in patients with rheumatic mitral stenosis which related with the severity of mitral stenosis and with respiratory symptoms.

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“…It was reported that the degree of dyspnoea showed a closer relation to the height of pulmonary artery pressure and to VC, than to maximum breathing capacity in the pure mitral stenosis patients. 7 This study tried to evaluate the pattern of pulmonary function test (PFT) in patient with severe mitral stenosis.…”

mentioning

confidence: 99%

Pattern of Pulmonary Function Test in Patients with Severe Mitral Stenosis

Khan

Majumder

Islam

et al. 2015

Bangladesh Crit Care J

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Background: The deterioration in lung function in mitral stenosis correlates with the severity of stenotic valves. A correlation is noted between vital capacity and the severity of dyspnoea in patients with mitral stenosis. This study tried to evaluate the pattern of pulmonary function test in patient with severe mitral stenosis.Materials & Methods: This study involving 56 patients of severe mitral stenosis was performed in a referral cardiovascular center at Dhaka, Bangladesh from January to September, 2011. Colour doppler echocardiography and pulmonary function test were performed in each cases. Forced vital capacity (FVC), forced expiratory volume in first second (FEV1), FEV1/FVC and peak expiratory flow (PEF) rate was assessed from pulmonary function test. Finally, pattern of pulmonary function test in severe mitral stenosis was assessed.Results: Amomg 56 patients, 46 were female with a male female ratio 1: 0.22 and the mean age of patients was 28.76 ± 7.2. Among patients with severe mitral stenosis, mean FEV1 (%) was 60.18 ± 13.054. Minimum FVC (%) was 26, maximum was 90 with mean 53.80 ± 12.313. The PEF varied from 150 to 330 L/minute with mean 223.75 ± 62.3251. In current study, out of 56 patients, 2 cases had obstructive type and rest of the patients had restricted type of airway on pulmonary function.Conclusion: The brief results of this study reveal that severe mitral stenosis is associated with impaired pulmonary function, usually presenting restrictive airway pattern.Bangladesh Crit Care J September 2014; 2 (2): 57-59

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Abnormal Ventilatory Patterns in Mitral Stenosis

Cited by 9 publications

References 12 publications

Effect of Successful Percutaneous Transvenous Mitral Commissurotomy on Pulmonary Function

Effect of Successful Percutaneous Transvenous Mitral Commissurotomy on Pulmonary Function

Lung Function and Severity of Mitral Stenosis

Pattern of Pulmonary Function Test in Patients with Severe Mitral Stenosis

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