Background/Aims: To prevent contrast induced renal dysfunction a periprocedural prophylactic hydration is applied. Due to dilution it should cause a drop in serum creatinine concentration (SCR). Surprisingly, no reduction in SCR after contrast admission is found in up to 25% of patients as early as 12-18 hours after coronary angiography/angioplasty. This study aims to find a clinical explanation as well as predict circumstances for this phenomenon. Methods: Retrospective clinical and laboratory data was used from 341 patients who underwent elective coronary angiography/angioplasty, received a prophylactic hydration, and had serum creatinine concentration measured prior to, and 12-18 hours after invasive procedure with iodine contrast administration. To exclude an improper hydration due to no creatinine decrease, the number of red blood cells was analysed as well as hemoglobin and hematocrit in blood donations collected during the study time points. Results: The resulting lack of serum creatinine reduction could be explained by dehydration (measured by increase in number of RBC, HGB and HCT) only in 13.5% , 10.8 %, and 20% of cases, respectively. Any form of abnormal glucose metabolism combined with either baseline serum creatinine concentration <0.87 mg/dL or creatinine clearance >86.77 mL/min, or GFR by CKD EPI >80.08 mL/min/1.73 m2, or GFR by MDRD >74.48 mL/min/1.73 m2 were the predictors for no creatinine decrease at outcome. Additionally, it was demonstrated that the lack of creatinine decrease was more often observed among those patients whose initial renal function was better than in the subjects with reduction of SCR. Conclusions: This observation requires further prospective investigation on extended group of patients.
We present 54 year-old man diagnosed with an aneurysm of the ascending aorta and arch with aortic regurgitation and coronary artery disease. Surgery consisted of removing an aneurysm of the ascending aorta and arch of subtraction (debranching)cephalic brachiocephalic trunk and the common carotid artery and anastomosis of the descending aorta with vascular prosthesis and coronary artery bypass grafting. Postoperative course was uneventful. In 14 days after surgery the patient was discharged from the unit. Debranching method allowed avoiding hypothermia during surgery and shortening the time of cardio pulmonary bypass.
Takotsubo syndrome (TTS) has been reported in various clinical conditions. Coronary artery fistula (CAF) is diagnosed in 0.2- 0.4% of patients undergoing coronary angiography. Pathologic communication between coronary artery (e.g., left anterior de¬scending coronary artery – LAD) and cardiac chambers (e.g., left ventricle – LV) is cameral type of CAF which particularly predis¬pose to myocardial ischemia due to a steal syndrome. Eight cases of coexistent TTS and CAF have been reported so far; in 6 of them LAD cameral fistulas drained LV, in 2 others communications between coronary arteries and pulmonary artery were found.
The authors describe a case of a 75-year-old female, admitted due to chest pain and dyspnea. Her clinical picture with ST-segment elevation in ECG, moderately increased troponin I and apical ballooning in echocardiography, was more typical for TTS than for myocardial infarction; besides that, color doppler imaging was suggestive of multiple CAF to LV. Coronary angiography showed communication between all (normal) coronary arteries and LV. Throughout the conservative therapy, first, an improve¬ment and then normalization of LV function were observed after 2 and 6 days, respectively. Chest x-ray and computed tomogra¬phy revealed mediastinal tumor (eventually diagnosed as lung cancer). Cardiac magnetic resonance performed after one month did not show late gadolinium enhancement. During the course of 24 months follow-up, she was taking bisoprolol and ramipril and her cardiologic state remained stable, even during chemotherapy and radiotherapy. The authors collected the clinical data of all 9 cases with concomitant TTS and CAF. Specific TTS triggering factors/predisposing conditions were present in all patients, which has indicated that coexistence of TTS and CAF is rather coincidental.
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