Successful management of coronary complications during percutaneous intervention: A case report.

This case report delineates the complex management of a 65-year-old female with established diabetes, hypertension, and ischemic heart disease, who presented with refractory angina despite comprehensive medical management. Coronary angiography identified significant pathology in the right coronary artery alongside a previously placed, functioning stent in the left anterior descending artery. The intervention was complicated by the occurrence of a type B coronary artery dissection and a type III coronary perforation during an attempt to extract a stent. Immediate remedial measures, including balloon inflation and the placement of drug-eluting stents, were undertaken. The patient underwent a transient episode of collapse, from which she was successfully resuscitated. The concluding angiographic assessment confirmed the effective dilation of the lesion with no remaining dissection or perforation. This case accentuates the infrequent yet critical complications that can arise during percutaneous coronary intervention.

Effectiveness of implementation of standard clinical pathway through healthcare professionals among acute myocardial infarction patients undergoing angiography / angioplasty in a public tertiary care hospital, Karachi.

OBJECTIVE: To assess the effect of acute myocardial infarction standard clinical pathway among acute myocardial infarction patients on length of stay in public tertiary care setting. METHODS: The quasi-experimental non-randomised study was conducted at the Department of Cardiology, Dr Ruth Pfau Civil Hospital, Karachi, from September to December 2018, and comprised acute myocardial infarction patients. Those admitted before the implementation of acute myocardial infarction standard clinical pathway formed the control group, while those admitted after the implementation were in the intervention group. Acute myocardial infarction standard clinical pathway was implemented and the interventional clinical practices of healthcare professionals, including cardiologists, postgraduates, residents, nurses and critical care technicians, were assessed using a standard checklist. Data was analysed using SPSS 21. RESULTS: Of the 100 participants, 50(50%) were in the control group; 31(62%) males and 19(38%) females. The intervention group also had 50(50%) patients; 35(70%) males and 15(30%) females. Regarding effectiveness of the implementation of standard clinical pathway, length of hospital stay reduced significantly in the intervention group compared to the control group (p=0.003). CONCLUSIONS: The implementation of acute myocardial infarction standard clinical pathway reduced the length of hospital stay of acute myocardial infarction patients.

Efficacy of serum blood urea nitrogen, creatinine and electrolytes in the diagnosis and mortality risk assessment of patients with acute coronary syndrome.

BACKGROUND: Although blood urea nitrogen (BUN), creatinine (Cr) and electrolytes are not the mainstay of diagnosis in acute coronary syndrome (ACS) patients but they may have a role in providing a more detailed view of the complications and mortality rates. The aim of this study was to determine the efficacy of these parameters in the diagnosis and mortality risk-assessment of patients with ACS. METHODOLOGY: A total of 200 patients with ACS were recruited in this prospective study. The relationship of serum BUN, Cr and electrolytes with cardiac enzymes, Global Registry of Acute Coronary Events (GRACE) and mortality was assessed during a 6-months follow-up. Statistical test like multivariate linear regression and binary logistic regression analysis were applied. RESULTS: On multivariate linear regression analysis, serum potassium (K) (Unstandardized Coefficient B=-3.77; p=0.04) showed significant negative association with Creatine Kinease and serum BUN (Unstandardized Coefficient B=0.52; p=0.001) showed significant positive association with Troponin I. The patients with GRACE>105 had significantly higher levels of serum BUN and Cr. Receiver operating characteristic curves showed that area under curve (AUC) of BUN (0.7) was higher than AUC of Cr (0.5). Multiple adjusted model showed that patients with BUN>32.5mg/dl were almost 20 times more likely to be associated with mortality as compared to reference group. CONCLUSION: In addition to cardiac enzymes, K along with BUN and Cr may serve as important aid in diagnosis of ACS. BUN and Cr may also serve as important tools in mortality-risk assessment of ACS patients.

Prognostic value of blood count parameters in patients with acute coronary syndrome.

BACKGROUND: Recent studies have shown that complete blood count (CBC) parameters can effectively predict long-term mortality and re-infarction rates in acute coronary syndrome (ACS). However, the role of these parameters in predicting short term mortality has not been studied extensively. The main objective of this study was to determine whether CBC parameters can predict 30-days mortality and the incidence of major adverse cardiac event (MACE) in ACS patients. METHODOLOGY: A total of 297 patients with ACS were recruited in this prospective study. The relationship of baseline white blood cell (WBC) to mean platelet volume ratio (WMR) with MACE and mortality was assessed during a 30-days follow up. The patients were divided into two groups: Group A [WMR<1000] and Group B [WMR>1000]. Multivariate COX regression was performed to calculate hazard ratios (HR). RESULTS: WMR had the highest area under receiver operating characteristics curve and highest discriminative ability amongst all CBC parameters in predicting mortality. Patients in Group B had a higher mortality rate (p<0.001) than patients in Group A. WBC count (p=0.02), platelet count (p=0.04), WMR (p=0.008), platelet to lymphocyte ratio (p<0.001) and neutrophil to lymphocyte ratio (p=0.03) were significantly higher in the MACE-positive group as compared to MACE-negative. In multivariate cox regression analysis, WMR>1000 (HR=2.9, 95% confidence interval 1.3-6.5, p=0.01) was found to be strongest biochemical marker in predicting mortality. CONCLUSION: WMR is an easily accessible and an inexpensive indicator, which may be used as a prognostic marker in patients with ACS.

Efficacy of Hematological and Coagulation Parameters in the Diagnosis and Prognosis of Patients with Acute Coronary Syndrome.

Background : The diagnosis and management of acute coronary syndrome (ACS) have improved significantly over the past few decades; however, the recognition of myocardial ischemia still proves to be a dilemma for cardiologists. The aim of this study was to determine the role of hematological and coagulation parameters in the diagnosis and prognosis of patients with ACS. Methods: This prospective study recruited 250 patients with ACS and 250 healthy controls. The diagnostic role of hematological and coagulation parameters was assessed by comparing the patients with ACS with the control group. The relationships between these parameters and mortality were determined by dividing the patients into 2 groups: Group A (discharged) and Group B (patients who died within 30 days of follow-up). Multivariate Cox regression analysis was performed to calculate the hazard ratio (HR). Results: The mean age of the patients was 55.14±10.71 years, and 65.2% of them were male. Prothrombin time (P<0.001), activated partial thromboplastin time (P<0.001), mean platelet volume (MPV) (P<0.001), white blood cell (WBC) count (P<0.001), and red blood cell distribution width (RDW) (P<0.001) were significantly higher in the case group than in the control group. WBC count (P<0.001), RDW (P<0.001), and MPV (P<0.001) were significantly higher in the controls than in the case group. The Cox regression model showed that RDW above 16.55% (HR=6.8), MPV greater than 11.25 fL (HR=2.6), and WBC higher than 10.55×103/µL (HR=6.3) were the independent predictors of mortality. Conclusion: In addition to being the independent predictors of short-term mortality, RDW, WBC, and MPV when used together with the coagulation profile may aid in the diagnosis of ACS in patients presenting with chest pain.

Anomalous right coronary artery arising from left coronary cusp with coexisting valvular heart disease.

We report an unusual case, a 50 year old female with an abnormal right coronary artery originating from the left coronary cusp. The patient, who had a history of hypertension presented with chest pain and shortness of breath to the emergency department. She was diagnosed with ischaemic heart disease (IHD) and had hypertension as one of the coronary risk factor. Echocardiography revealed poor progression of R waves. She was scheduled for echocardiography thereafter which revealed severe aortic stenosis with aortic root dilatation. The patient was discharged due to absence of any complications or other anomalies. This case is unique because of the simultaneously presenting valvular pathology, along with the anomalous origin of the right coronary artery which was detected, as an incidental finding, during coronary angiography.

Comparison of the Postprocedural Quality of Life between Coronary Artery Bypass Graft Surgery and Percutaneous Coronary Intervention: A Systematic Review.

The treatment of choice between coronary artery bypass graft surgery (CABG) and percutaneous coronary intervention (PCI) has remained unclear. Considering quality of life (QOL) increases life expectancy, we believe QOL should be important in determining the optimum treatment. Thus the objective of this review was to illustrate the comparative effects of CABG and PCI on postprocedural QOL. Methods. We searched PubMed (Medline) and Embase from inception of the databases to May 2014 using "PCI versus CABG quality of life", "Percutaneous Coronary intervention versus Coronary artery bypass graft surgery Quality of life", "PCI versus CABG health status", "Angioplasty versus CABG", "Percutaneous coronary intervention versus coronary artery bypass surgery health status", and different combinations of the above terms. 447 articles were found. After applying strict exclusion criteria, we included 13 studies in this review. Results. From the 9 studies that compared QOL scores at 6 months after procedure, 5 studies reported CABG to be superior. From the 10 studies that compared QOL among patients at 1 year after procedure, 9 reported CABG to be superior. Conclusion. It can be established that CABG is superior to PCI in improving patient's QOL with respect to all scales used to determine quality of life.

Comparison of the Quality of Life after Skeletonized versus Pedicled Grafts in Coronary Artery Bypass Graft Surgery.

It remains a controversial issue whether internal thoracic artery (ITA) should be dissected in skeletonized or pedicled manner during coronary artery bypass graft (CABG) surgery. The main objective of this cohort study was to compare skeletonized versus pedicled grafts on the basis of patients' perceptions of their physical and mental well-being. Isolated nonemergent CABG patients were divided into two groups according to the type of graft used; skeletonized or pedicled. The quality of life (QOL) was measured preoperatively, 6 months postoperatively, and 12 months postoperatively for each patient using the 36-Item Short Form Health Survey tool. The main outcome variables were physical component summary (PCS) score and mental component summary (MCS) score. A total of 140 patients were included in the study with 70 patients in each group. The PCS (p-value = 0.235) and MCS (p-value = 0.239) scores of patients were similar in both the groups before CABG. The PCS and MCS scores were significantly (p-values < 0.0001) improved after CABG at 6 months in both the groups. However, the PCS and MCS scores in the skeletonized group were significantly higher (p-values < 0.0001) than the scores in the pedicled group at 6 and 12 months post-CABG. Both the harvesting techniques improve QOL significantly after CABG. However, skeletonization results in significantly better PCS and MCS scores compared with pedicled harvesting technique.

Variation in admission rates of acute coronary syndrome patients in coronary care unit according to different seasons.

OBJECTIVE: Environmental stresses, especially extreme cold and hot weathers, have tendency to have more admissions for acute coronary syndromes. Due to scarcity of local data, we studied the variation in patient admission rates with acute coronary syndrome according to different seasons. STUDY DESIGN: Descriptive study. PLACE AND DURATION OF STUDY: Coronary Care Unit, Civil Hospital and Pakistan Steel Hospital, Karachi, from January 2011 to December 2011. METHODOLOGY: The study group comprised consecutive patients with acute coronary syndrome (unstable angina, Non ST-Elevation Myocardial Infarction (NSTEMI), ST-Elevation Myocardial Infarction (STEMI) admitted to the coronary care unit. Patients with stable angina and valvular heart disease were excluded. Data was analyzed for admission according to different seasons, (winter, spring, summer and autumn). RESULTS: The mean age of the 428 cases was 48.5 ± 10.4 years (range 27 to 73 years). Among the study group, 261 (61%) and 167 (39%) cases were male and female respectively. ST-elevation myocardial infarction, non ST-elevation myocardial infarction and unstable angina were present in 206 (48%), 128 (30%) and 94 (22%) respectively. Among the 428 patients, 184 (43%) cases had hypertension, 133 (31%) cases were smokers, 103 (24%) cases had dyslipidemia and diabetes mellitus and 08 (2%) cases had history of premature coronary artery disease. The number of patients admissions with acute coronary syndrome tended to change with sudden change in season. It increased in Winter 158 (36.9%) and Summer 130 (30.3%) in comparison to Spring 80 (18.69%) and Autumn 60 (14.02%) season. CONCLUSION: It was found variation in admission rates of acute coronary syndrome patients according to different seasons. The number of admissions not only increased in the cold season (winter) but also in hot season (summer) with sudden changes in temperature.

Endovascular treatment of renal artery stenoses.

OBJECTIVE: To evaluate the procedure success and effect on hypertension after stenting of incidentally diagnosed atherosclerotic renal artery stenoses. STUDY DESIGN: An experimental study. PLACE AND DURATION OF STUDY: A multicentric study was conducted at the Plastic Surgery and General Hospital, National Medical Center and Ziauddin University Hospital, Karachi, Pakistan from January 2009 to March 2013. METHODOLOGY: Hypertension (systolic blood pressure > 160 and diastolic > 90 mmHg with two or more than two medications) with coronary artery disease were initially evaluated for coronary angiography, Renal artery angiography was also endovascular performed and stent was deployed for atherosclerotic renal artery stenosis when found. Blood pressure readings, reduction in need of antihypertensive medication and serum creatinine levels were taken as outcome measures. Patients having renal artery stenoses secondary to connective tissue disorders and fibromuscular dysplasia were excluded. RESULTS: There were 25 patients, 14 (56%) male and 11 (44%) female, with mean age of 49 ± 6 years. Diabetes mellitus, dyslipidemia and smoking were seen in 11 (44%), 10 (40%) and 4 (16%) patients respectively. Renal insufficiency (serum creatinine > 1.5 mg/dl) was seen in one (04%) patient. Bilateral, and isolated right and left renal artery stenoses was seen in 5 (20%), 9 (36%) and 11(44%) patients respectively. Mean percentage of renal artery stenoses was 89%, ranged from 70% to 99% while ostial lesion was found in 20 (80%) patients. A significant decrease in systolic (168.20 ± 9.987 vs. 140.60 ± 5.649 mmHg, p < 0.001) and diastolic blood pressure (88.60 ± 5.50 vs. 77.20 ± 5.017 mmHg, p < 0.001) and reduction of medication (2.72 ± 0.458 vs. 1.5 ± 0.510, p < 0.01) were noted without a change in renal function (p= 0.061) after renal artery stenting. CONCLUSION: Endovascular stenting of renal artery stenoses in patients with poorly controlled hypertension is a safe and effective treatment.

Risk assessment for obstructive sleep apnea and anxiety in a Pakistani population with coronary artery disease.

PURPOSE: Previous studies in the western world have reported the possible association of obstructive sleep apnea (OSA) with anxiety and cardiovascular diseases. However, the data from developing countries such as Pakistan remains scarce in this regard. The main aim of this study was to investigate the prevalence of coronary artery disease (CAD) patients who are at high risk of OSA and to determine the association between the risk of OSA and levels of anxiety. METHODS: The sample population consisted of 400 participants including 200 patients, who had been previously diagnosed with CAD, and 200 healthy controls. The 200 CAD patients were approached for inclusion in the study on their follow-ups after their acute symptoms had subsided. The patients were interviewed after a mean time period of 13 weeks post event. All patients with lung disease or respiratory infection were excluded from the study. The risk of OSA was determined using Berlin questionnaire, while the levels of anxiety were measured by Beck anxiety inventory scale (BAI). RESULTS: More than half (n = 104) of the CAD patients were at high risk of OSA while majority (n = 168) of the healthy controls were at low risk. The high risk of OSA was significantly (P < 0.0001) more prevalent in CAD patients compared with controls. It was also observed that the patients who were at high risk of OSA, among both cases and controls, had significantly (P values <0.001) higher levels of anxiety. CONCLUSION: A significant proportion of CAD patients are at high risk of OSA in our region. Moreover, OSA is also associated with greater levels of anxiety in both healthy people and CAD patients.

Frequency and predictors of non-compliance to dietary recommendations among hypertensive patients.

Compliance to dietary recommendations among hypertensive people is a major health care issue. Non-compliance can nullify the effects of even the most scientific and optimum treatment plan. The main aim of this study was to determine the frequency and predictors of non-adherence in our region. We also investigated the possible factors based on patient opinions that could increase compliance. A sample of 400 adult patients, diagnosed with hypertension for at least 3 years, who visited Civil Hospital during the time period April-June 2013 were included in this cross sectional study. Patient data and opinions were collected by two trained interviewers using a pre-coded questionnaire. Compliance was assessed based on patients self report. More than three quarters (n = 310, 77.5%) of the hypertensive patients were non-compliant. More than one social gathering in a week, peer-influence, no friends to follow the recommended diet plan and lack of believe regarding diet as an effective measure to control blood pressure were found to be the significant predictors of non-compliance (P values <0.0001). Counseling was thought to be the most effective way by the patients to increase adherence. Non-compliance to dietary recommendations is a major problem prevalent especially in Pakistan. There is an urgent need for doctors and nurses to counsel their patients effectively to prevent future morbidities and mortalities because of non-compliance.

Betel nut usage is a major risk factor for coronary artery disease.

AIM: The objective of our study was to assess betel nut usage as one of the major risk factors associated with coronary artery disease. METHODS: This case control study consisted of 300 controls and 300 cases. A structured questionnaire was administered to the participants to assess consumption of betel nut and confounding variables. A respondent was considered a regular consumer of betel nut if he/she consumed one or more pieces of betel nut every day for a period of greater than 6 months. RESULTS: About 8 in 10 betel nut chewers developed coronary artery disease. After adjusting for diabetes and hypertension, the odds ratio analysis depicted 7.72 times greater likelihood for coronary artery disease in patients who chewed betel nut for more than 10 years. CONCLUSION: Our study concludes that betel nut chewing is a significant risk factor leading to the development of coronary artery disease.