Graded Phenomenon (Yasser’s Phenomenon).pptx

YasserMohammedHassan1 52 views 39 slides Jun 22, 2024
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About This Presentation

Background: Arrhythmias are one of the most serious disorders in cardiovascular and clinical medicine. Understanding the pathogenesis and mechanisms of arrhythmias is very advantageous to the appropriate management and treatment of all arrhythmia types. The “Graded phenomenon” is a novel directo...


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Graded Phenomenon (Yasser's Phenomenon) A novel Electrocardiographic Phenomenon Change the Arrhythmia Directory; Retrospective-Observational Study Dr . Yasser Mohammed Hassanain Elsayed   Scientist and Independent researcher Critical care physician and cardiologist Egyptian Ministry of Health

Learning objectives •   Abstract •  The study •   Discovery •   Principals of Graded Phenomenon (Yasser's Phenomenon) •  Varieties Classification •  Introducing Examples •  Mechanisms of cardiac arrhythmias •   The Risk •  Definitions • Management of Graded Phenomenon •  Conclusion and Recommendations

Abstract   Background : Arrhythmias are one of the most serious disorders in cardiovascular and clinical medicine. Understanding the pathogenesis and mechanisms of arrhythmias is very advantageous to the appropriate management and treatment of all arrhythmia types. The “Graded phenomenon” is a novel directory phenomenon for understanding the arrhythmia. The principal of “Graded phenomenon” is based on catching the graded changes in serial ECG tracings or even single one regarding the arrhythmias. Method of study and patients : My case study was an observational retrospective for a 30 case report series. The study was conducted in both Fraskour Central Hospital (Intensive Care Unit, and emergency room) and Physician Outpatient Clinic. The author reported the 30-cases thorough nearly 4 years, started from Jan 13, 2016, and, ended on February 9, 2020 . Results : The age mean is 58.3 years with male sex predominance (56.67%). The changes in graded phenomenon are classified into: Up-grading; 20%, d own-graded; 10%, c hanged to NSR; 43.33%, c hanged to AF; 3.33%, c hanged to sinus tachycardia; 3.33%, t herapeutic reversal; 3.33%, f ixed –change; 10%, and v ariable change; 6.67%. The risk in the graded phenomenon is either high (40%), non-risk (43.33%), or still-risk (16.67%). The course in the graded phenomenon is either progressive (43.33 %), regressive; 10 %, intermittent; 6.67 %, constant; 16.67 %, transient; 20 %, and non-fixed variation; 3.33 %. Conclusions: Graded phenomenon (Yasser's phenomenon) is a novel electrocardiographic phenomenon change the arrhythmia directory. It is a crucial step for understanding arrhythmia. The phenomenon is a new strong guide for monitoring and follows up arrhythmic patients in cardiovascular patients.

The study Table 1 - showing remarks of the study method and data. Issue Definition Title   Graded phenomenon (Yasser's phenomenon); A novel Electrocardiographic phenomenon change the arrhythmia directory Estimated Enrollment 30 participants Study Type Observational Observational Model Case-only Time Retrospective Study Start Date January 13, 2016 Estimated Study Completion Date February 9, 2020 Analytic method Comparative using percentage %

Discovery   History of either: •   Over about 5 years of subsequent immediate serial ECG tracings. or •  Subsequent changes, but in the same ECG tracing.

Principles of the “Graded Phenomenon”   •   It is based on catching the graded changes in the serial ECG tracings. Or • Even the same ECG tracing regarding the arrhythmias.

Definition   • Let the definition for a moment.

Varieties Classification   1. GP Variant I Classification: According to the extension direction for arrhythmia: 1. The up-grading phenomenon with the right to the left extension. 2. The up-grading phenomenon with the left to the right extension. 3. Up-grading bidirectional sectors of tachycardia (BSOT). 4. Intermittent Wandering pacing rhythm with the left to the right extension.  

2. GP Variant II Classification: According to the grading and conversion of arrhythmia of GP: 1. Up-grading. 2. Down-grading. 3. Fixed–change. 4. Spontaneously changed to normal sinus rhythm. 5. Spontaneously changed to another arrhythmia. 6. Therapeutic reversal.

3. GP Variant III Classification: According to the risk of arrhythmia of GP: 1.   High risk. 2.   Non-risk. 3.   Still-risk.

After these Variant Classifications; let me to introducing examples for understanding 1. Upgrading GP with right to left extension A 60-year-old married, housewife, Egyptian female, presented to the Emergency Room with orthopnea of progressive course . The patient was admitted and managed in the intensive care unit as chronic heart failure with hypertensive crises . She gave a history of diabetes and calcular cholecystitis .

2. Progressive polymorphic VT ( Tdp ); upgrading GP with left to right extension A 58-year-old married Egyptian housewife female patient presented to the POC with dizziness, dyspnea, and palpitations . The patient gave a history of psycho-familial troubles . Clinically, she had appeared myxedematos . There was sub-clinical hypothyroidism and congestive heart failure .

3. Progressive bidirectional sectors of tachycardia (BSOT) “GP” A 75-year-old married Egyptian housewife female patient presented to the POC with chest pain, dyspnea, and palpitations. The patient was initially diagnosed as hypertensive crises with junctional tachycardia .  

4. Intermittent Wandering pacing rhythm (WPR) with a progressive left to the right extension An 11-year-old Egyptian boy student patient presented to the POC with pleuritic chest pain . There was no history of heart disease .

5. Progressive accelerated junctional rhythm (AJR) with the right to the left extension A 37-year-old married Egyptian housewife female patient presented to the POC with irritable bowel syndrome with chest tightness, and palpitations. She gave a history of anxiety due to delayed infertility . The patient initially diagnosed as anxiety with a junctional rhythm .

6. Fixed trigeminal PVCs A 50-year-old married Egyptian male teacher patient presented to the POC with dizziness and palpitations. The patient appeared anxious . There was a recent history of psychological stress . There was a history of old MI .

Figure 6- Fixed trigeminal PVCs in anxiety and old IMI. A-C tracings showing fixed trigeminy PVCs .

7. Up-grading PVCs in suspected of acute pulmonary embolism ( thrombophilia) An 88-year-old married, worker, Egyptian male patient presented in the ER with tachypnea and palpitations. The patient gave a recent history of bilateral LL swelling. The patient has a history of hypertension, AF, recurrent cerebrovascular strokes with bulbar palsy . At home, the patient missed his warfarin (3 mg). He was admitted to the ICU as suspected of acute pulmonary embolism .

Mechanisms of cardiac arrhythmias   Table 2- Summery mechanisms of cardiac arrhythmias . No. Disorders in impulse figuration Disorders in impulse conduction 1.       2. A. Automaticity 1. Altered normal automaticity 2. Abnormal automaticity   B. Triggered activity 1. Delayed after-depolarization 2. Early after-depolarization (EADs) A. Reentry 1. Anatomic reentry 2. Functional reentry   Modified from Gaztan L et al (2012)

The Risk Table-3 Risk markers and red flags for PVC’s with a higher risk for SCD Modified from Elsayed et al (2019)

• The risk in “Graded phenomenon” is classified into: • High risk ; 40% (12 cases) • Non-risk ; 43.33% (13 cases) • Still-risk ; 16.67% (5 cases) Figure 8 showing the graphical presentation for risk outcomes in “Graded phenomenon”.

Table 4- showing types of grading phenomenon, changes, course, and the risk.

Definitions • Definitions in the changes of “GP” •   Up-grading : It is meaning that the change either from low serious arrhythmia to higher serious arrhythmia, or more extension for the current serious arrhythmia, or ending to serious arrhythmia or just extension for a benign arrhythmia e.g. case No. 1. Up-grading may be included an up-grading type of arrhythmia as in case No. 7. •   Down-grading : It is meaning that the change either from higher serious arrhythmia to low serious arrhythmia, or less extension for the current serious arrhythmia, or ending to the benign or non-serious arrhythmia e.g. case No. 15. •   Fixed–change : It is meaning that the current arrhythmia is constant in the serial ECG or even the single ECG tracing e.g. case No. 6. •   Spontaneously changed to normal sinus rhythm : It is meaning that the current arrhythmia is spontaneously changed to normal sinus rhythm with no uses of medications or therapeutic maneuvers like DCC and Valsalva’s e.g. case No. 16 and17 . •   Spontaneously changed to another arrhythmia e.g. sinus tachycardia e.g. case No. 19. and atrial fibrillation e.g. case No. 18. •   Therapeutic reversal : It is meaning that there is a new arrhythmic change after using the traditional antiarrhythmic e.g. case No. 14.

• Definitions in the extension of arrhythmia in “GP” •   The up-grading phenomenon with the right to left extension : It is meaning that the arrhythmic change starting from the right side of ECG tracing directed toward its left side e.g. case No. 1. •   The up-grading phenomenon with the left to right extension : It is meaning that the arrhythmic change starting from the left side of ECG tracing directed toward its right side e.g. case No. 2. •   Up-grading bidirectional sectors of tachycardia (BSOT) : It is meaning that the arrhythmic change starting as sectors of tachycardia then gradually extend to both left and right side of ECG tracing until becoming complete tachycardia e.g. case No. 3. •   Intermittent Wandering pacing rhythm with the left to right extension : It is meaning that the change occurring intermittent manner then extends from left to right e.g. case No. 4.  

• Definitions in the risk in arrhythmia with “GP” •   High : This is meaning that there will be possible serious outcomes like; sudden cardiac deaths congestive heart failure, Torsades de pointes, and VT ventricular tachycardia e.g. case No. 1, 2, and 7. •   Non-risk : This is meaning that there will no be possible serious outcomes e.g. case No. 4, 5, and 14. •   Still-risk : This is meaning that there are no current possible serious outcomes but maybe with passing the time e.g. case No. 18, 24, and 26.

Management of GP   • Essential points are considered in the management of GP • Serial ECG tracings • The risk • The course • The clinical status • GP can be treated as a case by case according to the above considerations. • Multidisciplinary subspecialty teams are advised for further understanding of GP which be including; • Cell biologist • Electro-physiologist • Cardiologist • Patho-physiologist.

Acknowledgment I wish to thank Ahmed Alghobary , B.sc. for his technical support.   Conclusion and Recommendations   • Graded phenomenon (Yasser's phenomenon) is a novel electrocardiographic phenomenon change the arrhythmia directory. • It is a crucial step for understanding arrhythmia . • The phenomenon is a new strong guide for monitoring and follows up arrhythmic patients in cardiovascular patients. • There are interlacing correlations between the “passing phenomenon ” and the current “Graded phenomenon” especially in cases of arrhythmia that is spontaneously changed to normal sinus rhythm with no uses of medications or therapeutic maneuvers like DCC and Valsalva’s e.g. case No. 16 and 17. • Electrophysiology studies (EPS) is recommended for more future study and understanding the “Graded phenomenon” • Physiological study for the cellular biology may be advised future options for the “ Graded phenomenon” .

References 1. Elsayed YMH. Graded Phenomenon (Yasser's Phenomenon)- A Novel Electrocardiographic Phenomenon Change the Arrhythmia Directory- Retrospective-Observational Study , asser’s Phenomenon). Glob J of Anes & Pain Medicine . 2020;3(1): 219-242. DOI: 10.32474/GJAPM.2020.03.000155 2. Gaztan L, Marchlinski FE. Betensky BP. Mechanisms of Cardiac Arrhythmias. Rev Esp Cardiol . 2012;65(2):174–185. DOI: 10.1016/j.rec.2011.09.020. 3. Elsayed YMH. Premature Ventricular Contractions from Benign to Seriousness - A Narrative Updating Review. Archives of Emergency Medicine and Intensive Care . 2019;2(2);1-21. Available from: https:// www.sryahwapublications.com/archives-of-emergency-medicine-andintensive-care/pdf/v2-i2/1.pdf (accessed in: August 9, 2019). 4. Elsayed YMH . Electrocardiographic Passing Phenomenon (Flying Phenomenon or Yasser’s Phenomenon) Conveys the Traditional Cardiovascular Management; Interpretations and Reassurance; Retrospective Observational Study. Anaest & Sur Open Access J . 1(3): 2020. ASOAJ.MS.ID.000514. Available at: https://irispublishers.com/asoaj/ (Accessed in: March 04, 2020)    

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