The Night Everything Changed in ICU Ward 3
The call came at 2:17 AM on a Wednesday.
Dr. Sumaira Talib was on her surgical ICU rotation at UPMED Hospitals, Lahore, running on three hours of sleep and her second cup of hospital chai, when the nurse rang from Ward 3. A 58-year-old male patient, admitted two days earlier with severe intra-abdominal sepsis following a perforated duodenal ulcer, was deteriorating rapidly. His blood pressure was dropping despite aggressive fluid resuscitation and maximum-dose vasopressors. His lactate was climbing. His urine output had slowed to a trickle. The standard sepsis protocol, the one every doctor in the hospital had followed for years, was not working.
Sumaira stood beside the bed, staring at the monitor as the numbers moved in the wrong direction. The senior registrar on call had already seen the patient and ordered the textbook adjustments: increase noradrenaline, add dobutamine, repeat cultures; everything by the book, but the book was not saving this man.
And then Sumaira did something that would change the way every member of The Research Clinic thought about medical research forever.
She opened PubMed on her phone.
Not to pass the time. Not to study for an exam. She searched because she remembered something Dr. Muhammad Yaqoob had said during their very first Research Clinic session: “Every treatment you give your patient was once somebody’s research question. If you don’t read research, you are practising yesterday’s medicine on today’s patients.”
With trembling fingers, she typed: “glucocorticoids therapy septic shock.” The first result was a landmark randomized controlled trial, the ADRENAL trial, published in the New England Journal of Medicine, including 3,800 patients. The findings suggested that low-dose hydrocortisone significantly reduced time to vasopressor dependence and accelerated shock resolution, even though overall mortality was similar.”
Sumaira called the on-call consultant. She did not just say, “I think we should try steroids.” She said: “Sir, the ADRENAL trial, a multi-centre RCT in the NEJM, showed that low-dose hydrocortisone in septic shock significantly reduced time to resolution. Our patient meets the criteria. Can we consider adding it?”
The consultant paused. Then he said yes.
By morning, the patient’s blood pressure had stabilized. By the following day, vasopressors were being weaned. By day five, the patient was transferred out of the ICU. He went home two weeks later to his family in Shahdara.
When the story reached The Research Clinic’s next session, the room was electric. Dr. Hammad Ali, who usually sat at the back making jokes, was leaning forward. Dr. Zunaira Malik had tears in her eyes. Dr. Hassan Raza had stopped asking for shortcuts.
And Dr. Junaid Rashid, the fifteen-year veteran who had walked into the first session declaring he didn’t need research, sat very still and said quietly: “Sumaira, how did you know where to look?”
That question opened the door to the most important lesson in our 120-day journey.
What Is Evidence-Based Medicine?
I stood at the whiteboard that morning and wrote three words: Evidence-Based Medicine. Then I asked a simple question: “What does this actually mean?”
Hammad raised his hand first. “It means treating patients based on evidence, sir. Based on research.”
“Close,” I said, “but incomplete.”
Evidence-based medicine (EBM) is the conscientious, explicit, and judicious use of the best available evidence, combined with clinical expertise and patient values, to make decisions about individual patient care. That definition comes from Dr. David Sackett, the father of EBM, and every word in it matters. (Ref: Click Here)
Notice: it is not just about research papers. EBM sits on three pillars. The first is the best available research evidence, based on what studies and trials have shown. The second is clinical expertise, the judgment a doctor develops through years of practice. The third is patient values and preferences because the right treatment for one patient may not be right for another.
Sumaira did not just quote a paper. She matched high-quality evidence to a specific clinical scenario, presented it to an experienced consultant who applied his clinical judgment, and together they chose a treatment that aligned with the goal of saving the patient’s life. That is evidence-based medicine in action.
Dr. Junaid raised an objection that many senior doctors share: “I have been treating sepsis for fifteen years. My experience is my evidence.”
“Your experience is invaluable, Junaid sahib,” I replied. “But experience alone can mislead us. A doctor who has treated 500 patients a certain way may believe that method works, without realizing that 50 of those patients would have done better with a different approach. That is where research comes in, it shows us what we cannot see from our own limited sample of cases.”
Something shifted in the room. Research was no longer abstract. It was not about promotions, PMDC requirements, or HEC categories. It was about the patient in bed 7 of ICU Ward 3 who went home to his family because a PGR Year 2 trainee knew how to find and use evidence.
The Evidence Hierarchy: Not All Evidence Is Created Equal
As they progressed, Dr. Muhammad Yaqoob introduced them to the research design pyramid, which ranks studies according to the strength of their evidence. He drew the pyramid on the board, and together they filled in each level. At the base, he placed expert opinions and background information that were useful but largely based on personal experience. “These are the weakest forms of evidence,” Dr. Yaqoob explained, “but still the foundation of scientific curiosity.” Moving up, he added case reports and case series, which describe one or a few patients in detail. “That’s where most discoveries start,” Junaid remarked.
Higher up the pyramid were observational studies, including cross-sectional, case-control, and cohort designs. They learned to observe what happens naturally in people without altering their treatments. Junaid remembered a cross-sectional study on hypertension by his colleague; it helped him see patterns but couldn’t prove what caused them. “These studies are like looking at life as it is,” Sumaira said. “We watch, but we don’t interfere.”
Dr. Yaqoob then pointed to the pyramid’s upper layers. “Now we move toward the stronger designs,” he said. Just above the observational studies, he placed the quasi-experimental and non-randomised controlled trials (non-RCTs). These studies test interventions, but without full randomisation, it isn’t feasible or ethical to assign participants randomly. “They still compare treatment effects,” he explained, “but with a slightly higher chance of bias.”
Then he turned to the very top of the pyramid. “Here are the strongest designs,” he said. All participants leaned forward eagerly. They learned that randomised controlled trials (RCTs) are considered the gold standard because participants are randomly assigned to groups, minimising bias and ensuring fairness. “That’s why drug trials use randomisation,” Junaid remarked. At the peak stood systematic reviews and meta-analyses, which combine findings from many high-quality studies. “These give us the most reliable conclusions,” Sumaira added, completing the pyramid. Dr. Yaqoob smiled; his students had truly grasped the hierarchy of evidence.
Over time, they also learned about the quality of evidence, a measure of how much confidence one can have in a study’s findings. High-quality evidence, they found, comes from well-planned research with large samples and minimal bias. Low-quality evidence often arises from small, poorly structured, or subjective studies. “In clinical practice,” Junaid said, “doctors rely more on high-quality studies because they reflect the real effect of a treatment.” Sumaira agreed, adding that good evidence builds trust between research and patient care.
Their mentor also warned them about bias, one of the biggest challenges in research. He explained that bias doesn’t mean dishonesty; it means unintentional errors that make results lean in one direction. Sumaira recalled how her study on arthritis had mistakenly included mostly younger patients, making the results less useful for older people. Sumaira noted how some journals prefer to publish only positive findings, leaving out neutral ones, a form of publication bias.
Zunaira raised her hand quietly from the back. “Sir, where do clinical guidelines fit?”
Dr. Yaqoob smiled. The “basic” question turns out to be brilliant. “Excellent question, Zunaira. Clinical practice guidelines, such as those from WHO, NICE, or the AHA, are usually based on systematic reviews of the best available evidence. They translate research into practical recommendations. So they sit alongside the top of the pyramid as applied evidence. When you follow a clinical guideline, you are indirectly using the best available research evidence.”
Image Source: https://www.sciencedirect.com/science/article/pii/S0002916522047554?via%3Dihub
Why Evidence-Based Medicine Matters Especially in Pakistan
Let me be direct about something. Evidence-based medicine is not a luxury for Western hospitals. It is perhaps more important in Pakistan’s healthcare system than anywhere else, precisely because resources are limited.
Consider this: when a government hospital in Lahore has a limited drug budget, every prescribing decision carries weight. Giving an expensive antibiotic that a well-designed RCT has shown to be no better than a cheaper alternative is not just bad medicine; it drains resources that could be used to treat other patients. Evidence-based medicine in Pakistan is not just about quality. It is about justice. Dr. Bushra, who had been quiet, spoke up: “So when we publish research from Pakistani hospitals, we are not just building our CVs. We are creating evidence that other Pakistani doctors can use.”
“Exactly,” I said. “And that is the deeper purpose of The Research Clinic. Yes, you will learn to publish. Yes, it will help your career. But the ultimate goal is this: every piece of research you produce adds to the body of evidence that helps patients. Your research question could become someone else’s treatment protocol. Your data could save a life in an ICU in Peshawar, or a rural BHU in Tharparkar, or a teaching hospital in Karachi.”
I looked around the room. “Research is not rocket science; it is a skill, and skills can be taught. But it is also a responsibility. When you know how to find and use evidence, and you choose not to, you are choosing to give your patients less than they deserve.”
You can also connect with the writer of this blog post series to share or receive suggestions: Dr. Junaid Rashid (Founder of UPMED) at 03042397393 (WhatsApp).
List of all the posts in this journey.