A Second Chance At Living
A Cardiothoracic Surgery Rotation Reflection
A Cardiothoracic Surgery Rotation Reflection
By Zainab Afzal
3rd Year MBBS Student at University College of Medicine
There are some moments in life that stay with you—not because they were expected, but because they weren’t.
Because they startled something awake within you. Stirred you. Changed you.
My cardiac surgery clinical attachment was meant to be just another tick on the long checklist of medical training. Another rotation. Another routine. But what it became was something far more intimate. Far more personal. Far more human. I still remember the moment I saw a heart—not in a textbook, not on a diagram, not as a label in an anatomy atlas—but beating. Real. Red. Alive.
It was during a CABG (coronary artery bypass grafting) surgery. The surgical team moved with a quiet choreography, with a quiet sense of exigency. I stood silently at the behind the drapes on the stool, unsure of what I was meant to absorb—but then I saw it.
The heart.
It wasn’t dramatic. It didn’t shine or glow. But it pulsed with such silent purpose that I felt time slow. For a second, all I could think was—this is it. What remained was awe.
This was the very organ we reduce to mnemonics and dissection manuals. We recite its chambers, label its arteries, diagram its pathologies. But none of that prepares you for the moment it’s no longer ink on a page, but flesh and blood—alive in someone’s chest.
Not as a concept.
As a reality.
In that moment, I felt something imperceptible shift inside me. A wave of wonder, like a child seeing a shooting star for the first time—not because they know what it is, but because they’ve only ever heard it described. And now it’s real.
I tried to absorb everything I could, but time moved too quickly—as if the hourglass had been turned, then flooded. The team spoke of harvesting the left internal mammary artery and the great saphenous vein, their words fluid, rehearsed. To me, it felt like watching a dance I hadn’t yet learned—elegant, precise, and just beyond reach. But I watched. I listened. And then I saw it: the saphenous vein, lifted from the leg, clean, glistening, almost luminous under the light. It was mesmerizing. The speed, the dexterity—it all seemed effortless. But I knew better. Every movement was the product of years of mastery.
I walked out of that OR different. I had seen something extraordinary: not just a heart beating, but the miracle of medicine in motion. And somewhere in that experience and my thoughts screaming, I found a quiet confirmation.
What struck me most was their clarity. They knew exactly which artery was responsible for the ischemia—an anatomical deviation that had set off a cascade of pathophysiology culminating in a non-STEMI. From grayscale occlusions on an angiogram, they reconstructed a living map in their minds. No hesitation. No guesswork. They saw not just the image—but the person, the disease, and the solution—layered beneath it. And they knew exactly where to bypass. It was like watching a surgeon trace a map only they could read—one that led not to a destination, but to a second chance at life.
There’s something poetic about the silence that follows a heartbeat.
Not the kind you fear—but the kind you witness in an operating room, where science meets art, and a patient’s life is held in the careful choreography of human hands.
That’s what I felt the day I saw my first aortic valve replacement.
The numbers on the monitor began to fall—128, 120, 76, 50... down to 10. And then, nothing. Asystole. The heart lay still, paused by intention.
Yet she remained alive.
The cardiopulmonary bypass had taken over—quietly, efficiently—assuming the role of the heart with a kind of clinical grace. It was now the silent custodian of her life, oxygenating and circulating blood through her body while her own heart lay still. The monitor no longer traced the familiar cadence of systole and diastole. Just a flat line. And yet—she lived. Not because her heart beat, but because we had allowed it to rest. Because medicine had intervened not to replace life, but to preserve it.
While everything in the OR was gradually silenced to a discreet hum of the machines, as the next movement unfolded with a familiar reverence. And Dr. Obaid Al Jassim, the senior surgeon of the surgery that day, began with the most intricate part of the surgery.
As he worked, he explained something that, until then, had only been a number in textbooks: valve gradients. We were operating on the aortic valve, and he pointed out why this mattered. A gradient—essentially the pressure difference across a valve—is a marker of obstruction. When the valve becomes stenotic, the left ventricle must generate higher pressure to overcome resistance and push blood forward into the aorta.
He said, “Anything more than 30 mmHg is significant. It tells you the heart is working too hard.”
That day, the numbers began to mean something real. I could see it now: pressure trapped on one side of a narrowing, a ventricle straining to eject, a valve failing to open wide enough for life to move forward.
It wasn’t just physiology—it was geometry, hemodynamics, precision.
The aorta was incised and opened—clean, deliberate—and the surgical field became something more than anatomical. It became sacred. The diseased valve, once a gatekeeper of rhythm, was carefully excised—its calcified leaflets no longer capable of keeping pace with the demands of life. In its place, a mechanical valve was chosen. Not with haste. Never with haste. The surgeon reached for the sizer with the delicacy of ritual, testing each fit until the valve felt less like a foreign object and more like a natural extension of the heart itself. One that would sit not just accurately, but harmoniously. One that wouldn’t disturb flow or disrupt pressure—only restore balance.
My legs ached. I hadn’t sat in hours. But I couldn’t look away. I knew even then, that this was the kind of pain that teaches you something.
One of the last surgeries I witnessed was a mitral valve replacement. Among all the cases I observed, this one stayed with me most—because I had met her. Spoken with her. She wasn’t just a patient on a monitor; she was someone I had come to know, if only briefly.
She was an Ethiopian woman, just 31 years old, but her chart read like it belonged to five patients at once. Her medical history was vast, complex, and relentless. I took her history myself, and that encounter shaped everything that followed.
She told me she had lived with heart disease since childhood. She shared a small apartment with her roommate—the same one who had rushed her to the hospital that first time. She looked too small, too fragile, for someone her age. And yet, she endured.
Her clinical picture was as complex as it was heartbreaking. She had stopped taking warfarin, and soon after experienced dizziness, dyspnea on exertion (NYHA Class II), and a syncopal episode. She was already diagnosed with mitral stenosis, but her course quickly spiraled: flank pain, leg pain, left renal thrombosis. She left against medical advice—then returned with right-sided symptoms, later confirmed as right renal thrombosis. A thrombectomy was performed.
There was also a retroperitoneal mass—fibrous, likely benign, but inaccessible for biopsy. Her INR remained dangerously elevated throughout her hospital stays, and she suffered repeated episodes of hematuria and bloody stools. At one point, she developed severe epigastric and umbilical pain, and was referred to gastroenterology. These symptoms, at least, were resolved back then.
This story unfolded over five long months.
Five months in which her body carried the weight of multiple systems failing, repeatedly. She was, in many ways, five patients in one.
All within a frame too frail to bear it.
And then, one day, she collapsed.
Her roommate brought her to the emergency department again. She was stabilized—barely—but she was now in atrial fibrillation. Before anyone could catch their breath, she spiraled into ventricular fibrillation.
A crash call was made.
She was resuscitated.
ROSC was achieved.
And she was admitted again, her heart beating in A-fib, against the pain with each breath she takes—her body fighting for every beat. Awaiting to correct it all at once, by replacing her mitral valve.
We were later asked to discuss her case with the senior consultant on duty, Dr. Imthiaz Manoly. He walked us through the domino effect of valvular dysfunction—how a single failing valve, like the mitral valve, can disrupt the entire hemodynamic balance of the heart.
In her case, mitral regurgitation was present—blood flowing backward from the left ventricle into the left atrium during systole. Over time, this retrograde volume overload had extended upstream, causing pulmonary congestion as pressure transmitted into the pulmonary veins and capillaries. The strain didn't stop there. It pushed further back into the right ventricle, and then into the right atrium—creating a vicious cycle of biventricular stress.
Dr. Manoly emphasized that in such cases, left ventricular dysfunction may mask the severity of aortic valve stenosis—especially when coexisting moderate aortic valve stenosis appears deceptively mild. Reduced stroke volume due to LV failure may lower the pressure gradient across the aortic valve, making it appear less severe on Doppler measurements. This is where quantitative measures become essential.
He introduced us to EROA—the Effective Regurgitant Orifice Area—a more precise way to eyeballing regurgitation severity, especially when ejection fraction is reduced. In cases like hers, where both regurgitation and ventricular dysfunction coexist, relying solely on qualitative or pressure-based assessments can be misleading. EROA, combined with regurgitant volume and vena contracta width, gives a clearer picture of the true burden of regurgitation on the heart.
It wasn’t just theory—it was this patient’s reality. Each backward step of blood had translated into months of suffering, decompensation, and near collapse. And it all began with one valve, subtly failing over time.
Dr. Manoly explained something I’ve carried with me since. He described her left ventricle as being “lazy”—not in neglect, but in exhaustion. Years of volume overload from mitral regurgitation had conditioned it to operate with minimal effective workload. It had adapted to dysfunction. And the danger, he said, was in expecting that ventricle to suddenly wake up and perform at full capacity right after surgery.
“It would go insane,” he expressed—bluntly but accurately. The abrupt increase in demand could overwhelm an already struggling ventricle, leading to postoperative deterioration or even death. That’s where the strategy of gradually unburdening the heart becomes critical.
He introduced us to the importance of reducing preload and afterload in such patients, easing the transition and protecting the myocardium. ACE inhibitors, by reducing systemic vascular resistance, help lower afterload—making it easier for the ventricle to eject blood forward. Diuretics, on the other hand, decrease circulating volume, reducing preload and relieving pulmonary congestion.
The interplay was more like a careful balance—relieving the heart of just enough responsibility so it could regain function without collapsing under the pressure. It wasn’t just pharmacology. It was clinical foresight. Precision. Respect for a heart that had been quietly failing in correct function for years.
On my final days in the attachment, I observed her surgery. By then, everything around me felt more familiar. I wasn’t just watching—I was beginning to understand. The once-intimidating motions now felt like a language I was slowly learning to speak. The sequence of steps, the rationale behind each maneuver—they all started to weave together, like a well-woven tapestry in the making, but the vision was clear.
I was no longer just a bystander. I had begun to feel like part of the choreography.
A vertical midline incision was made—going straight down through the sternum, likely for better exposure: A thoracotomy. Initially, there had been plans for a triple valve replacement, but during the pre-op discussion, they decided to address the most critical defect – the mitral valve.
Using a sternal saw, they split open the sternum. The pericardium was then carefully exposed and opened using cautery, and hitched, revealing the heart.
But this was strange.
It was also not a normal beating.
It wasn’t beating in the way I had come to recognize. Its rhythm was off—disjointed. The atria seemed to be doing their own thing, visibly fibrillating. The right atrium, especially, was strikingly dilated. It didn’t take a trained eye to see it—this heart was not okay. The lack of coordinated contraction, the erratic movement of the atrial wall—it was all there, exposed, raw, unmistakably abnormal.
What I was seeing wasn’t just pathology—it was the physical expression of years of illness. And for the first time, I didn’t need someone to explain it to me. I could see it.
“What can you comment about the atrium you see here?” Dr. Mohannad asked, his hands steady as he assisted Dr. Manoly in hitching the pericardium.
“It’s not beating in a normal rhythm,” I offered, my eyes fixed on the erratic fluttering of the atrial wall.
“It’s also dilated—much larger than usual,” another attachée added.
“Yes,” Dr. Mohannad nodded. “You can clearly see it's distended.”
It was a small exchange, but it stayed with me—because we weren’t just being quizzed. We were being taught how to see.
Soon after, they began inserting the cannulas, preparing the patient for cardiopulmonary bypass. The goal was clear: bring the heart to asystole so the mitral valve could be safely accessed and replaced. It was a routine maneuver in theory—but standing there, watching it in practice, it felt anything but routine. It felt familiar.
They began working on the mitral valve, carefully excising the diseased structure. As they removed it, they held it up for us to see—its leaflets thickened, calcified, and clearly dysfunctional.
“You can see the leaflets—it makes a happy face,” Dr. Mohannad said. We laughed quietly. In that moment, the tension softened—not because the procedure was simple, but because even in surgery, humanity finds its place.
To implant the prosthetic valve, they reached for the sizer, gauging the correct dimensions of the mitral annulus. Once the fit was confirmed, they selected a tissue prosthetic valve—one that would mimic the natural movement and physiology of the native valve.
It was striking. The valve looked almost alive—glistening under the light, its leaflets delicate but purposeful. It didn’t feel artificial. It felt like restoration.
A second chance at living.
In those final moments of the surgery, as the new valve was sewn into place, I stood quietly at the edge of the field—watching not just a procedure, but a life being pieced back together. What began for me as an overwhelming exposure to anatomy in motion had become something far more layered. I had come in thinking I would learn about technique. And I did. But I also learned to recognize precision as compassion, and silence in the OR as respect—for the body, for the patient, for the years of illness that led to that moment.
This attachment didn’t just sharpen my clinical understanding. It softened me where I didn’t expect. It reminded me that disease is not just a diagnosis, but a life interrupted. That a dilated atrium isn’t just a finding—it’s a history. That a prosthetic valve is not just a solution—it’s a second chance.
I came to see that surgery, especially cardiac surgery, isn’t just about cutting and fixing. It’s about restoring rhythm—not just in the heart, but in the life that depends on it.
Before I left, I knew I couldn’t end this experience without expressing my deepest gratitude. I want to thank Dr. Obaid Al Jassim, Head of Cardiothoracic Surgery, and Dr. Imthiaz Manoly, Senior Consultant of the department, for allowing me the privilege to learn under their leadership. Their depth of knowledge was only matched by their quiet patience—always willing to teach, to guide, and to share insight that can’t be found in books. I am equally grateful to the surgeons Dr. Dogan, Dr. Mohannad, and Dr. Motaz, who, even in the most high-stakes moments, took time to involve us—to point, to explain, to remind us that learning never stops in medicine. Though my time with them was brief, their contribution to my journey was lasting.
These people turned an observation into a transformation.
On my final day, I left Dubai Hospital waving at the patient who had just undergone mitral valve replacement. She had just woken up from surgery. Through the transparent doors of the surgical ICU between us, she saw me and smiled—weakly but warmly—and lifted her hand to wave back.
I wished her well, silently, and meant it with everything I had.
I stepped out with something more than memory. I left with a purpose—refined, rooted, and real. My heart felt heavy—not with burden, but with the weight of knowledge, and quiet emotion.
I had come to witness the heart. I left with a deeper understanding of my own.